Electric heating sleeve for molecular distillation experimental equipment

Abstract

The utility model discloses an electric jacket for molecular distillation experimental equipment, which is provided with a heating groove and a limiting device, the limiting device comprises two limiting plates which are oppositely arranged left and right, and the two limiting plates are respectively arranged on the electric jacket in a sliding manner and can slide back and forth along the left and right directions of the electric jacket; the two limiting plates are located above the heating groove, the two limiting plates are driven by the driving mechanism to slide reversely in the left-right direction, so that the distance between the two limiting plates is adjusted, and then the distance between the openings above the heating groove is adjusted. Compared with the prior art, the beaker placing device has the advantages that the space between the openings above the heating tank is flexibly adjusted, so that beakers with different specifications can be stably placed, and potential safety hazards are eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of molecular distillation equipment, in particular to an electric heating jacket for molecular distillation experimental equipment. Background Art

[0002] Molecular distillation equipment is a high-efficiency separation equipment used to separate liquid mixtures. It is mainly used in chemical, pharmaceutical, food, petroleum and other fields. Its basic principle is to use the difference in boiling points of different substances to separate the various components in the mixture by heating and cooling. Some tobacco flavors also need to use molecular distillation technology for separation and purification. In the process of preparation experiments, in order to allow the substance to evaporate and the temperature to be accurately controlled, an electric heating jacket will be installed in the molecular distillation equipment.

[0003] The heating groove of the existing electric heating jacket is open, and the shape of the heating groove is mostly hemispherical. When conducting molecular distillation experiments, the experimenter pours the material to be heated into the round-bottomed beaker, and then inserts the round-bottomed beaker into the heating groove of the electric heating jacket. When the bottom radius of the round-bottomed beaker is smaller than the radius of the heating groove of the electric heating jacket, the round-bottomed beaker is not easy to be stably supported in the heating groove. When heating, the liquid in the round-bottomed beaker boils, which inevitably causes a certain degree of shaking of the beaker itself, or when the experimenter accidentally touches the electric heating jacket instrument, the round-bottomed beaker will also shake, which will cause the round-bottomed beaker to easily tip over, posing certain safety hazards. In addition, in the open heating groove, debris can easily enter the heating groove, and the operator needs to clean the heating groove before use. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provides an electric heating jacket for molecular distillation experimental equipment to achieve flexible adjustment of the spacing between openings above a heating tank so that beakers of different specifications can be stably placed and potential safety hazards are eliminated.

[0005] The utility model is realized by the following technical solutions:

[0006] A heating jacket for molecular distillation experimental equipment, wherein a heating groove is provided on the heating jacket, and a limiting device is provided on the heating jacket, wherein the limiting device comprises two limiting plates which are arranged opposite to each other in the left and right directions, and the two limiting plates are respectively slidably arranged on the heating jacket and can slide back and forth along the left and right directions of the heating jacket, and the two limiting plates are located above the heating groove, and the two limiting plates are driven by a driving mechanism to slide in opposite directions in the left and right directions, thereby adjusting the spacing between the two limiting plates, and further realizing the adjustment of the spacing of the opening above the heating groove.

[0007] As a preferred embodiment of the above-mentioned electric heating jacket, the driving mechanism includes a gear and two racks. The rotating rod extends vertically and is rotatably mounted on the electric heating jacket. The gear is fixed on the rotating rod. The two racks are respectively fixedly connected to the two limit plates and extend in the left and right directions. The two racks are arranged on both sides of the gear and are respectively meshed with the gear. The gear is driven to rotate by rotating the rotating rod, and the gear drives the two racks to move in opposite directions at the same time, thereby driving the two limit plates to move away from or closer to each other, thereby adjusting the distance between the two limit plates.

[0008] As a preferred solution of the above-mentioned electric heating sleeve, the driving mechanism is arranged on one side of the two limit plates along the front-back direction, and the guide mechanism is arranged on the other side, the guide mechanism includes a guide strip arranged on the electric heating sleeve and extending along the left-right direction, and the two limit plates are respectively provided with guide blocks on the corresponding guide side, and the guide blocks of the two limit plates are respectively slidably matched with the guide strips.

[0009] As a preferred solution of the above-mentioned electric heating jacket, a connecting strip is provided on the electric heating jacket, a rotating rod is rotatably mounted on the connecting strip, and an upper end of the rotating rod extends above the connecting strip and is connected to a rotating disk.

[0010] As a preferred embodiment of the above-mentioned electric heating sleeve, the electric heating sleeve is provided with a locking structure for locking the circumferential position of the turntable, the locking structure includes a spring, a limit block and a limit rod, the bottom end of the spring is fixed to the connecting strip, the top end of the spring is connected to the limit block, the limit rod is arranged on the limit block and extends vertically, a plurality of locking holes are evenly distributed along the circumference of the bottom surface of the turntable, and the circumferential position of the turntable is locked by elastically embedding the limit rod into the locking holes on the bottom surface of the turntable.

[0011] As a preferred embodiment of the above-mentioned electric heating sleeve, the connecting strip extends in the left-right direction, and scraping strips are respectively provided at the left and right ends of the connecting strip, each scraping strip extends in the front-back direction, and the two scraping strips are respectively located on the two limit plates, and a soft cloth is provided at the bottom of the scraping strip, and the movable limit plate is cleaned by the soft cloth of the scraping strip.

[0012] As a preferred solution of the above electric heating jacket, in the driving mechanism, the two racks are staggered up and down, and the two racks are fixedly connected to the two limit plates through connecting blocks.

[0013] As a preferred solution of the above-mentioned electric heating jacket, buffer blocks are respectively provided at the adjacent ends of the two limiting plates.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] The utility model provides an electric heating jacket for molecular distillation experimental equipment, which has two limit plates arranged above the heating tank, and the two limit plates are driven by a driving mechanism to slide in opposite directions in the left and right directions, so as to adjust the spacing between the two limit plates, and then adjust the spacing of the opening above the heating tank, and can stably support beakers of different specifications, can adapt to the heating and placement requirements of beakers of different specifications, eliminate safety hazards, and ensure the safety of the experiment. In addition, when it is not necessary to use the electric heating jacket to heat the beaker, the two limit plates can be completely close together to achieve complete coverage of the heating tank, effectively preventing debris from entering the heating tank of the electric heating jacket, thereby ensuring the subsequent normal use of the electric heating jacket. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the utility model from another viewing angle.

[0018] Figure 3 It is a structural schematic diagram of the driving mechanism part of the utility model.

[0019] Figure 4 It is a schematic cross-sectional structure diagram of the locking structure part of the utility model.

[0020] Numbers in the figure: 1. Electric heating sleeve; 2. Connecting strip; 3. Rotating rod; 4. Gear; 5. Rack; 6. Connecting block; 7. Limiting plate; 8. Buffer block; 9. Guide block; 10. Guide strip; 11. Fixed block; 12. Spring; 13. Limiting rod; 14. Operating rod; 15. Turntable; 16. Scraper strip; 17. Mounting block; 18 Limiting block; 19 Locking hole; 20 Heating slot. DETAILED DESCRIPTION

[0021] The following is a detailed description of an embodiment of the utility model. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific operation process are given, but the protection scope of the utility model is not limited to the following embodiment.

[0022] See also Figures 1 to 4 The present embodiment discloses an electric heating jacket for a molecular distillation experimental device. A heating groove 20 is provided on the electric heating jacket 1. A limiting device is provided on the electric heating jacket 1. The limiting device includes two limiting plates 7 which are arranged opposite to each other on the left and right sides. The two limiting plates 7 are respectively slidably provided on the electric heating jacket 1 and can slide back and forth along the left and right directions of the electric heating jacket 1. The two limiting plates 7 are located above the heating groove 20. The two limiting plates 7 are driven by a driving mechanism to slide in opposite directions along the left and right directions, thereby adjusting the spacing between the two limiting plates 7, and further realizing the adjustment of the opening spacing above the heating groove 20.

[0023] The driving mechanism includes a gear 4 and two racks 5. The rotating rod 3 extends vertically and is rotatably mounted on the electric heating sleeve 1. The gear 4 is fixed on the rotating rod 3. The two racks 5 are respectively fixedly connected to the two limit plates 7 and extend in the left-right direction. The two racks 5 are arranged on both sides of the gear 4 and mesh with the gear 4 respectively. The two racks 5 are staggered up and down, and the two racks 5 are respectively fixedly connected to the two limit plates 7 through the connecting blocks 6. The rotating rod 3 is rotated to drive the gear 4 to rotate, and the gear 4 drives the two racks 5 to move in the opposite direction at the same time, thereby driving the two limit plates 7 to move away from or close to each other, so as to adjust the distance between the two limit plates 7.

[0024] The two limiting plates 7 are provided with buffer blocks 8 at the ends close to each other. The two limiting plates 7 are provided with a driving mechanism on one side along the front-back direction and a guiding mechanism on the other side. The guiding mechanism includes a guiding strip 10 provided on the electric heating jacket 1 and extending along the left-right direction. The two limiting plates 7 are provided with guiding blocks 9 on the corresponding guiding side. The guiding blocks 9 of the two limiting plates 7 are respectively slidably matched with the guiding strip 10.

[0025] The electric heating jacket 1 is provided with a connecting strip 2, and both ends of the connecting strip 2 are fixed to the electric heating jacket 1 through mounting blocks 17, and a rotating rod 3 is rotatably mounted on the connecting strip 2, and the upper end of the rotating rod 3 extends above the connecting strip 2 and is connected to a turntable 15. The connecting strip 2 extends in the left-right direction, and scraping strips 16 are respectively provided at the left and right ends of the connecting strip 2, each scraping strip 16 extends in the front-back direction, and the two scraping strips 16 are respectively located on the two limit plates 7, and a soft cloth is provided at the bottom of the scraping strip 16, and the movable limit plates 7 are cleaned by the soft cloth of the scraping strip 16.

[0026] The electric heating jacket 1 is provided with a locking structure for locking the circumferential position of the turntable 15, and the locking structure includes a spring 12, a limit block 18 and a limit rod 13. The bottom end of the spring 12 is fixed to the fixed block 11 of the connecting strip 2, and the top end of the spring 12 is connected to the limit block 18. A horizontally extending operating rod 14 is provided on one side of the limit block 18. The limit rod 13 is arranged on the limit block 18 and extends vertically. A plurality of locking holes 19 are evenly distributed along the circumferential direction on the bottom surface of the turntable 15. The limit rod 13 is elastically embedded in the locking hole 19 on the bottom surface of the turntable 15 to achieve locking of the circumferential position of the turntable 15.

[0027] When the distance between the two limit plates 7 needs to be adjusted, the operating rod 14 is first pulled down, and the limit block 18 drives the limit rod 13 to move downward, so that the limit rod 13 is pulled downward from the locking hole 19 at the bottom of the turntable 15, thereby unlocking the turntable 15. Then the turntable 15 is rotated, and the turntable 15 drives the rotating rod 3 and the gear 4 to rotate, and the gear 4 drives the two racks 5 to move in the opposite direction, thereby driving the two limit plates 7 to move away from or close to each other, thereby adjusting the distance between the two limit plates 7. After the adjustment, the operating rod 14 is released again, and under the elastic force of the spring 12, the limit rod 13 automatically moves up and resets to be inserted into the corresponding locking hole 19 at the bottom of the turntable 15, preventing the turntable 15 from rotating, thereby locking the positions of the two limit plates 7.

[0028] When in use, place the beaker in the heating groove 20 of the electric heating jacket 1, adjust the distance between the two limiting plates 7 according to the outer diameter of the beaker, so that the buffer blocks 8 at the inner ends of the two limiting plates 7 are just in contact with the outer wall of the beaker, and then lock the positions of the two limiting plates 7 to achieve stable clamping of the upper part of the beaker, and even for a beaker of smaller size, stable placement can be achieved.

[0029] After the experiment is completed, the beaker is taken out and the driving mechanism is adjusted so that the two limit plates 7 are close to each other until the two buffer blocks 8 are in contact and completely cover the heating tank 20 to prevent debris from entering the heating tank 20 .

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heating jacket for molecular distillation experimental equipment, the heating jacket is provided with a heating tank, characterized in that: The electric heating sleeve is provided with a limiting device, which includes two limiting plates arranged opposite to each other in the left and right directions. The two limiting plates are respectively slidably arranged on the electric heating sleeve and can slide back and forth along the left and right directions of the electric heating sleeve. The two limiting plates are located above the heating groove. The two limiting plates are driven by a driving mechanism to slide in opposite directions in the left and right directions, so as to adjust the distance between the two limiting plates, thereby realizing the adjustment of the opening distance above the heating groove.

2. The electric heating mantle for molecular distillation experimental equipment according to claim 1, characterized in that: The driving mechanism includes a gear and two racks. The rotating rod extends vertically and is rotatably mounted on the electric heating sleeve. The gear is fixed on the rotating rod. The two racks are respectively fixedly connected to the two limit plates and extend in the left and right directions. The two racks are arranged on both sides of the gear and are respectively meshed with the gears. The gear is driven to rotate by rotating the rotating rod, and the gear drives the two racks to move in opposite directions at the same time, thereby driving the two limit plates to move away from or closer to each other, thereby adjusting the distance between the two limit plates.

3. The electric heating mantle for molecular distillation experimental equipment according to claim 2, characterized in that: The driving mechanism is arranged on one side of the two limit plates along the front-back direction, and the guiding mechanism is arranged on the other side. The guiding mechanism includes a guiding strip arranged on the electric heating sleeve and extending along the left-right direction. The two limit plates are respectively provided with guiding blocks on the corresponding guiding side, and the guiding blocks of the two limit plates are respectively slidably matched with the guiding strips.

4. The electric heating mantle for molecular distillation experimental equipment according to claim 2, characterized in that: The electric heating sleeve is provided with a connecting strip, the rotating rod is rotatably mounted on the connecting strip, and the upper end of the rotating rod extends out from the connecting strip and is connected with a rotating disk.

5. The electric heating mantle for molecular distillation experimental equipment according to claim 4, characterized in that: The electric heating sleeve is provided with a locking structure for locking the circumferential position of the turntable, the locking structure includes a spring, a limit block and a limit rod, the bottom end of the spring is fixed to the connecting strip, the top end of the spring is connected to the limit block, the limit rod is arranged on the limit block and extends vertically, a plurality of locking holes are evenly distributed along the circumference of the bottom surface of the turntable, and the limit rod is elastically embedded in the locking holes on the bottom surface of the turntable to achieve locking of the circumferential position of the turntable.

6. The electric heating mantle for molecular distillation experimental equipment according to claim 4, characterized in that: The connecting strip extends in the left-right direction, and scrapers are respectively arranged at the left and right ends of the connecting strip. Each scraper extends in the front-back direction. The two scrapers are respectively located on the two limit plates. A soft cloth is arranged at the bottom of the scraper, and the movable limit plate is cleaned by the soft cloth of the scraper.

7. The electric heating mantle for molecular distillation experimental equipment according to claim 2, characterized in that: In the driving mechanism, the two racks are staggered up and down, and the two racks are fixedly connected to the two limit plates through connecting blocks.

8. The electric heating mantle for molecular distillation experimental equipment according to claim 1, characterized in that: Buffer blocks are respectively arranged at the ends of the two limiting plates that are close to each other.

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