A rotary evaporator with a novel sealing structure

Abstract

The utility model discloses a kind of rotary evaporator with novel sealing structure, including console, air duct, distilling flask, sealing ring, collecting device and heating device;Rotary mechanism is provided on the console;One end of the air duct is provided with the connecting end of first magnetic component;The distilling flask is driven by the rotary mechanism and rotates around the axis of the distilling flask, and the mouth of the distilling flask is provided with second magnetic component, and the second magnetic component and the first magnetic component are mutually magnetically attracted and matched, so that the distilling flask is detachably connected to the connecting end of the air duct;The sealing ring is clamped between the first magnetic component and the second magnetic component, to form end face seal at the connecting place of the distilling flask and the air duct. When the distilling flask is frequently disassembled, it has better sealing property.

Description

Technical Field

[0001] This utility model relates to the field of evaporation equipment technology, and in particular to a rotary evaporator with a novel sealing structure. Background Technology

[0002] Rotary evaporators are commonly used instruments in chemical, biological, and pharmaceutical laboratories for the gentle and efficient evaporation of solvents, concentration of solutions, or recovery of solvents.

[0003] Existing rotary evaporators require frequent disassembly and assembly of the distillation flask during use, which can easily lead to a decrease in the sealing performance of the rotary evaporator. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a rotary evaporator with a novel sealing structure, which has good sealing performance when the distillation flask is frequently disassembled and reassembled.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A rotary evaporator with a novel sealing structure includes:

[0007] A control console, on which a rotating mechanism is provided;

[0008] A gas guide tube, one end of which is configured as a connecting end with a first magnetic element;

[0009] A distillation flask, which is driven by the rotating mechanism to rotate around the axis of the distillation flask, and the mouth of the distillation flask is provided with a second magnetic element, which magnetically attracts and cooperates with the first magnetic element so that the distillation flask can be detachably connected to the connection end of the gas guide tube.

[0010] A sealing ring is sandwiched between the first magnetic component and the second magnetic component to form an end face seal at the connection between the distillation flask and the gas guide tube.

[0011] A collection device, comprising a condenser and a collection bottle, wherein the gas guide pipe, the condenser, and the collection bottle are connected in sequence, and the collection device is used to collect the distillate condensed by the condenser.

[0012] A heating device for heating the distillation flask.

[0013] Furthermore, the first magnetic component has a groove, and the second magnetic component has a protrusion, the protrusion cooperating with the groove to keep the distillation flask stable when connected to the gas delivery tube.

[0014] Furthermore, the connecting end of the gas guide tube is hinged with a retaining ring; a retaining sleeve is fitted on the side of the distillation flask near the gas guide tube, and the retaining sleeve has a retaining part; the retaining ring can swing around its hinge point, so that the retaining ring engages with the retaining part.

[0015] Furthermore, the rotary evaporator with a novel sealing structure also includes a vacuum pumping device, which is connected to the condenser tube via a pipe.

[0016] Furthermore, the pipe is a PU steel wire pipe, one end of the pipe is connected to the top of the condenser pipe, and the other end of the pipe is connected to the suction port of the vacuum device.

[0017] Furthermore, the end of the gas guide tube away from the distillation flask is connected to the feed tube, the inlet of the feed tube is provided with a feed valve, and the outlet of the feed tube passes through the connection end of the gas guide tube and extends to the inside of the mouth of the distillation flask.

[0018] Furthermore, a clamp is provided at the connection between the feed pipe and the air guide pipe, and the clamp is used to fix the feed pipe.

[0019] Furthermore, the console is equipped with a lifting system, which is used to control the console to move in the vertical direction.

[0020] Furthermore, a support is provided on the side of the control console near the collection bottle, and the support is provided with a bottle-supporting ring. The bottle-supporting ring is connected to the support and is supported by the support; the bottle-supporting ring is located at the bottom of the collection bottle and is used to support the collection bottle.

[0021] Furthermore, the heating device is a water bath heater.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. A rotating mechanism is provided on the control console; one end of the gas guide tube forms a connecting end with a first magnetic component; the distillation flask is driven by the rotating mechanism to rotate around the axis of the distillation flask, and the mouth of the distillation flask is provided with a second magnetic component, which magnetically attracts and engages with the first magnetic component, so that the distillation flask is detachably connected to the connecting end of the gas guide tube; the sealing ring is clamped between the first magnetic component and the second magnetic component to form an end face seal at the connection between the distillation flask and the gas guide tube; the distillation flask and the gas guide tube are magnetically engaged and magnetically pressed together at the first... The magnetic component and the sealing ring in the second magnetic component allow the sealing ring to be tightly pressed between the two end faces, forming a stable cross-sectional seal. Traditional buckles or threads can easily loosen the sealing ring due to vibration or thermal expansion and contraction, while magnetic coupling provides a stable and durable attraction force, resulting in a better sealing effect. Moreover, the magnetic coupling also facilitates installation and disassembly. Users only need to bring the distillation flask close to the gas inlet tube, and the magnetic force will automatically attract it into place and complete the seal. When disassembling, only an axial pulling force sufficient to overcome the magnetic force is needed to remove the flask. The entire process does not require any cumbersome actions such as rotating or turning buckles.

[0024] 2. The collection device includes a condenser and a collection bottle, with the gas guide tube, condenser, and collection bottle connected in sequence. The collection device is used to collect the distillate condensed by the condenser. The heating device is used to heat the distillation flask. The collection device collects the distilled gas through condensation. The condenser can quickly liquefy the distilled gas, rapidly removing the heat of the vapor and promoting rapid evaporation of the solvent in the distillation flask. The collection bottle is used to collect the liquid condensed from the condenser. The sequential connection of the gas guide tube, condenser, and collection bottle ensures that all evaporated solvent vapors are guided to the condenser and completely liquefied and collected. The heating device provides gentle and uniform heating to the distillation flask. Uniform heating ensures that the solvent can evaporate steadily and continuously, providing a stable vapor flow for subsequent condensation and collection stages. This ensures that the entire system can operate stably for a long time and avoids sample decomposition, denaturation, or violent boiling caused by local overheating. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a rotary evaporator with a novel sealing structure according to the present invention;

[0026] Figure 2 for Figure 1 Front sectional view;

[0027] Figure 3 for Figure 2 A magnified view of part I.

[0028] In the diagram: 1. Control console; 2. Rotating mechanism; 3. Gas guide pipe; 4. First magnetic component; 41. Groove; 5. Distillation flask; 6. Second magnetic component; 61. Protrusion; 7. Sealing ring; 8. Collection device; 81. Condenser; 82. Collection bottle; 9. Heating device; 10. Snap ring; 11. Sleeve; 12. Snap-fit ​​part; 13. Vacuum device; 14. Pipe; 15. Feed pipe; 16. Feed valve; 17. Clamp; 18. Lifting system; 19. Support; 20. Bottle support ring. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0030] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] See Figures 1-3This utility model discloses an embodiment of a rotary evaporator with a novel sealing structure, comprising a control console 1, a gas delivery pipe 3, a distillation flask 5, a sealing ring 7, a collecting device 8, and a heating device 9. The control console 1 is equipped with a rotating mechanism 2. One end of the gas delivery pipe 3 forms a connecting end with a first magnetic element 4. The distillation flask 5 is driven by the rotating mechanism 2 to rotate around its axis. The mouth of the distillation flask 5 is equipped with a second magnetic element 6, which magnetically attracts the first magnetic element 4, allowing the distillation flask 5 to be detachably connected to the connecting end of the gas delivery pipe 3. The sealing ring 7 is clamped between the first magnetic element 4 and the second magnetic element 6, forming an end-face seal at the connection between the distillation flask 5 and the gas delivery pipe 3. The collecting device 8 includes a condenser pipe 81 and a collecting bottle 82, with the gas delivery pipe 3, condenser pipe 81, and collecting bottle 82 connected sequentially. The collecting device 8 is used to collect the distillate condensed by the condenser pipe 81. The heating device 9 is used to heat the distillation flask 5.

[0033] In use, the solution to be distilled is loaded into the distillation flask 5, and the second magnetic part 6 at the mouth of the distillation flask 5 is connected to the first magnetic part 4 of the gas guide tube 3. The heating device 9 is used to heat the distillation flask 5, and the rotating mechanism 2 of the control panel 1 is started so that the distillation flask 5 can rotate around the axis. After the collecting device 8 has finished collecting, the rotating mechanism 2 and the heating device 9 are turned off in sequence, and the distillation flask 5 and the collecting bottle 82 are removed.

[0034] The control console 1 is equipped with a rotating mechanism 2; one end of the gas guide tube 3 forms a connecting end with a first magnetic component 4; the distillation flask 5 is driven by the rotating mechanism 2 to rotate around the axis of the distillation flask 5, and the mouth of the distillation flask 5 is provided with a second magnetic component 6, which magnetically attracts the first magnetic component 4 to the distillation flask 5 so that the distillation flask 5 can be detachably connected to the connecting end of the gas guide tube 3; the sealing ring 7 is clamped between the first magnetic component 4 and the second magnetic component 6 to form an end face seal at the connection between the distillation flask 5 and the gas guide tube 3; the distillation flask 5 and the gas guide tube 3 are magnetically attracted and squeezed together. The sealing ring 7, located between the first magnetic component 4 and the second magnetic component 6, is pressed tightly between the two end faces to form a stable cross-sectional seal. Traditional snap-fit ​​or threaded axial force pressing the sealing ring 7 can easily loosen due to vibration or thermal expansion and contraction. Magnetic coupling provides a stable and durable attraction force, resulting in a better sealing effect. Moreover, the magnetic attraction also facilitates installation and disassembly. Users only need to bring the distillation bottle 5 close to the gas inlet tube 3, and the magnetic force will automatically attract it into place and complete the seal. When disassembling, only an axial pulling force sufficient to overcome the magnetic force is needed to remove the bottle. The entire process does not require any cumbersome actions such as rotating or turning the snap-fit. The collection device 8 includes a condenser tube 81 and a collection bottle 82. The gas guide tube 3, the condenser tube 81, and the collection bottle 82 are connected in sequence. The collection device 8 is used to collect the distillate condensed by the condenser tube 81. The heating device 9 is used to heat the distillation flask 5. The collection device 8 is used to collect the distilled gas by condensation. The condenser tube 81 can quickly liquefy the distilled gas, rapidly remove the heat of the vapor, and promote the rapid evaporation of the solvent in the distillation flask 5. The collection bottle 82 is used to collect the liquid condensed from the condenser tube 81. The gas guide tube 3, the condenser tube 81, and the collection bottle 82 are connected in sequence to ensure that all evaporated solvent vapor can be guided to the condenser tube 81 and completely liquefied and collected. The heating device 9 provides gentle and uniform heating to the distillation flask 5. Uniform heating ensures that the solvent can evaporate steadily and continuously, providing a stable vapor flow for subsequent condensation and collection stages. This ensures that the entire system can operate stably for a long time and avoids sample decomposition, denaturation, or violent boiling caused by local overheating.

[0035] Preferably, the first magnetic component 4 has a groove 41, and the second magnetic component 6 has a protrusion 61. The protrusion 61 cooperates with the groove 41 to ensure stability when the distillation flask 5 is connected to the gas guide tube 3. Based on the fact that the first magnetic component 4 has a groove 41 and the second magnetic component 6 has a protrusion 61, and that the protrusion 61 cooperates with the groove 41 to ensure stability when the distillation flask 5 is connected to the gas guide tube 3; while purely planar magnetic adsorption can provide strong axial tensile force, it will generate torsional stress when the distillation flask 5 rotates axially. Planar adsorption may cause slight relative sliding or vibration, which will affect the sealing effect and equipment lifespan in the long run. The cooperation between the protrusion 61 and the groove 41 can effectively transmit torque, preventing relative rotation between the distillation flask 5 and the gas guide tube 3; ensuring the stability of the distillation flask 5 during distillation and improving the sealing effect of the sealing ring 7.

[0036] Preferably, the connecting end of the gas guide tube 3 is hinged with a retaining ring 10; a retaining sleeve 11 is fitted on the side of the distillation flask 5 near the gas guide tube 3, and the retaining sleeve 11 has a locking part 12; the retaining ring 10 can swing around its hinge point, so that the retaining ring 10 engages with the locking part 12. Based on the retaining ring 10 hinged to the connecting end of the gas guide tube 3; the retaining sleeve 11 is fitted on the side of the distillation flask 5 near the gas guide tube 3, and the retaining sleeve 11 has a locking part 12; the retaining ring 10 can swing around its hinge point, so that the retaining ring 10 engages with the locking part 12; the mechanical engagement of the retaining ring 10 and the locking part 12 ensures that the distillation flask 5 will not detach from the gas guide tube 3, guaranteeing the sealing of the distillation process.

[0037] Preferably, the rotary evaporator with a novel sealing structure further includes a vacuum device 13, which is connected to the condenser tube 81 via a pipe 14. The rotary evaporator with a novel sealing structure further includes a vacuum device 13, which is connected to the condenser tube 81 via a pipe 14; thus, the vacuum device 13 maintains a vacuum inside the rotary evaporator, lowering the boiling point of the liquid during distillation and improving evaporation efficiency.

[0038] Preferably, the pipe 14 is a PU steel wire tube, with one end connected to the top of the condenser pipe 81 and the other end connected to the suction port of the vacuum device 13. Because the pipe 14 is a PU steel wire tube, with one end connected to the top of the condenser pipe 81 and the other end connected to the suction port of the vacuum device 13, the PU steel wire tube has a longer service life and lower maintenance costs compared to ordinary vacuum tubes, while also possessing good flexibility for easy installation and adjustment.

[0039] Preferably, the end of the gas guide tube 3 furthest from the distillation flask 5 is connected to the feed tube 15. The inlet of the feed tube 15 is equipped with a feed valve 16, and the outlet of the feed tube 15 passes through the connecting end of the gas guide tube 3 and extends to the inside of the mouth of the distillation flask 5. Based on the fact that the end of the gas guide tube 3 furthest from the distillation flask 5 is connected to the feed tube 15, the inlet of the feed tube 15 is equipped with a feed valve 16, and the outlet of the feed tube 15 passes through the connecting end of the gas guide tube 3 and extends to the inside of the mouth of the distillation flask 5; under normal pressure, solvent needs to be filled into the distillation flask 5 before installation. Under vacuum, by opening the feed valve 16 and placing the inlet of the feed tube 15 below the surface of the solvent to be distilled, the solvent to be distilled will flow into the distillation flask 5 due to the negative pressure. When the solvent in the distillation flask 5 is sufficient... When sufficient time is reached, the feed valve 16 is closed to complete the feeding process. This avoids fluctuations in temperature, pressure, and rotation caused by frequent opening and closing of the system, ensuring the consistency of experimental conditions, saving a significant amount of time spent on repetitive operations, and achieving a continuous and uninterrupted evaporation process. The entire feeding process is carried out in a completely closed system, maintaining the system's airtightness and ensuring safety and sample purity. The feed tube 15 can also be used to add cleaning solvent after distillation to clean the inside of the system, helping to maintain the cleanliness of the system and reduce cross-contamination between different samples.

[0040] Preferably, a clamp 17 is provided at the connection between the feed pipe 15 and the air guide pipe 3, and the clamp 17 is used to fix the feed pipe 15. The clamp 17 at the connection between the feed pipe 15 and the air guide pipe 3 is used to fix the feed pipe 15; the clamp 17 prevents the feed pipe 15 from being pulled, provides reliable mechanical fixation, prevents accidental detachment, and maintains a stable high vacuum in the system.

[0041] Preferably, the control console 1 is equipped with a lifting system 18, which is used to control the vertical movement of the control console 1. The lifting system 18 allows the operator to easily adjust the height of the distillation flask 5, improving operational convenience. Manual adjustment carries the risk of pinching, burns, or glass breakage; mechanical lifting reduces direct physical contact with the equipment, improving operational safety.

[0042] Preferably, a support 19 is provided on the side of the control console 1 near the collection bottle 82. The support 19 has a bottle-supporting ring 20 connected to and supported by the support 19. The bottle-supporting ring 20 is located at the bottom of the collection bottle 82 and is used to support the collection bottle 82. The support 19 on the side of the control console 1 near the collection bottle 82, with the bottle-supporting ring 20 connected to and supported by the support 19, and the bottle-supporting ring 20 located at the bottom of the collection bottle 82, provides stable support for the collection bottle 82, preventing it from accidentally falling off and improving the safety of the equipment.

[0043] Preferably, the heating device 9 is a water bath heater. Because the heating device 9 is a water bath heater, it provides gentle and uniform heating. Uniform heating avoids the generation of large bubbles from localized instantaneous vaporization at the bottom of the liquid, thereby significantly reducing the risk of boiling over and material overflow; it is simple to operate and economical.

[0044] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A rotary evaporator with a novel sealing structure, characterized in that, include: A control console (1) is provided with a rotating mechanism (2); The air guide tube (3) has one end forming a connecting end equipped with a first magnetic element (4); A distillation flask (5) is driven by the rotating mechanism (2) to rotate around the axis of the distillation flask (5). The mouth of the distillation flask (5) is provided with a second magnetic element (6). The second magnetic element (6) and the first magnetic element (4) are magnetically attracted to each other so that the distillation flask (5) can be detachably connected to the connection end of the gas guide tube (3). A sealing ring (7) is clamped between the first magnetic element (4) and the second magnetic element (6) to form an end face seal at the connection between the distillation flask (5) and the gas guide tube (3). The collecting device (8) includes a condenser (81) and a collecting bottle (82). The gas guide pipe (3), the condenser (81), and the collecting bottle (82) are connected in sequence. The collecting device (8) is used to collect the distillate condensed by the condenser (81). Heating device (9) is used to heat the distillation flask (5).

2. The rotary evaporator with a novel sealing structure according to claim 1, characterized in that, The first magnetic component (4) has a groove (41), and the second magnetic component (6) has a protrusion (61). The protrusion (61) cooperates with the groove (41) to keep the distillation flask (5) stable when connected to the gas delivery tube (3).

3. The rotary evaporator with a novel sealing structure according to claim 1, characterized in that, The connecting end of the gas guide tube (3) is hinged with a retaining ring (10); a retaining sleeve (11) is fitted on the side of the distillation flask (5) near the gas guide tube (3), and the retaining sleeve (11) is provided with a snap-fit ​​part (12); the retaining ring (10) can swing around its hinge point, so that the retaining ring (10) engages with the snap-fit ​​part (12).

4. A rotary evaporator with a novel sealing structure according to claim 1, characterized in that, The rotary evaporator with a novel sealing structure also includes a vacuum device (13), which is connected to the condenser tube (81) via a pipe (14).

5. A rotary evaporator with a novel sealing structure according to claim 4, characterized in that, The pipe (14) is a PU steel wire pipe. One end of the pipe (14) is connected to the top of the condenser pipe (81), and the other end of the pipe (14) is connected to the suction port of the vacuum device (13).

6. A rotary evaporator with a novel sealing structure according to claim 1, characterized in that, The end of the gas guide tube (3) away from the distillation flask (5) is connected to the feed tube (15). The inlet of the feed tube (15) is provided with a feed valve (16). The outlet of the feed tube (15) passes through the connection end of the gas guide tube (3) and extends to the inside of the mouth of the distillation flask (5).

7. A rotary evaporator with a novel sealing structure according to claim 6, characterized in that, A clamp (17) is provided at the connection between the feed pipe (15) and the air guide pipe (3), and the clamp (17) is used to fix the feed pipe (15).

8. A rotary evaporator with a novel sealing structure according to claim 1, characterized in that, The console (1) is equipped with a lifting system (18), which is used to control the console (1) to move in the vertical direction.

9. A rotary evaporator with a novel sealing structure according to claim 1, characterized in that, The control console (1) is provided with a support (19) on the side near the collection bottle (82). The support (19) is provided with a bottle support ring (20). The bottle support ring (20) is connected to the support (19) and supported by the support (19). The bottle support ring (20) is located at the bottom of the collection bottle (82) and is used to support the collection bottle (82).

10. A rotary evaporator with a novel sealing structure according to claim 1, characterized in that, The heating device (9) is a water bath heater.

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