Rotary sealing leakage-proof structure of rotary evaporator
By designing a rotary sealing structure with components such as the first and second clamping rings in the rotary evaporator, the problem of unstable sealing effect is solved, and reliable connection and fixation are achieved under high temperature and long-term rotation, preventing gas leakage and detachment of the rotating bottle.
Patent Information
- Application Number
- CN202520420896.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Rotary evaporators are prone to deformation and loss of sealing effect when rotated for a long time or in high-temperature environments, leading to gas leakage and detachment of the rotating bottle.
The rotating sealing structure includes components such as a first clamping ring, a second clamping ring, a fixing plate, an L-shaped plate, a plug rod, a spring, and a rubber gasket. The plug rod and spring work together to achieve a reliable connection and fixation between the distillation flask and the rotating gas guide tube.
This effectively avoids the failure of the sealing effect, ensures the sealing performance of the rotary evaporator during long-term rotation or high-temperature environments, and prevents gas leakage and detachment of the rotating bottle.
Smart Images
Figure CN223874462U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sealed leakproof structure technical field, concretely is a kind of rotary evaporator rotating seal leakproof structure. BACKGROUND
[0002] Rotary evaporator, also called rotary evaporator, is a kind of evaporation instrument widely used in laboratory, which is composed of motor, distillation flask, heating pot, condenser tube and other parts, mainly used for continuous distillation of volatile solvent under reduced pressure, applied in chemical, chemical, biological medicine and other fields;
[0003] Its working principle is to use the way of reduced pressure distillation, make solvent evaporate rapidly in the rotating distillation flask, then recycle through condensing device, however, in actual operation, the distillation flask mouth and rotating gas guide pipe are fixed and sealed by clamp, which is easy to deform under long-time rotation or high-temperature environment, lose sealing effect, easily lead to gas leakage and rotary bottle falling off. UTILITY MODEL CONTENTS
[0004] In order to solve the problem that it is easy to deform under long-time rotation or high-temperature environment, lose sealing effect, easily lead to gas leakage and rotary bottle falling off, the utility model discloses a rotary evaporator rotating seal leakproof structure.
[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: a rotary evaporator rotating seal leakproof structure, comprising distillation flask, the outside of distillation flask is equipped with first clamp ring, second clamp ring, the first clamp ring and second clamp ring are opposite, the outside edge of first clamp ring and second clamp ring is fixedly installed with fixed plate, the top edge of fixed plate is fixedly installed with L-shaped plate, the middle part of L-shaped plate is movably penetrated with first inserting rod, the both sides of first inserting rod are fixedly installed with connecting rod, the lower surface of L-shaped plate is fixedly installed with spring, the spring is located outside first inserting rod, the bottom end of spring is attached with connecting rod, the top end of first inserting rod is fixedly installed with handle;One end of distillation flask is equipped with rotating gas guide pipe, the outside of rotating gas guide pipe is equipped with third clamp ring, fourth clamp ring, the outside edge of third clamp ring and fourth clamp ring is fixedly installed with connecting plate, the side close to fixed plate of connecting plate is fixedly installed with second inserting rod, the middle part of fixed plate is penetrated with insertion slot matched with second inserting rod for use, the top end of second inserting rod is penetrated with fixed slot matched with first inserting rod for use.
[0006] Preferably, a connecting block is fixedly installed at the bottom edge of both the second and third clamping rings, and a guide rod is fixedly installed at the bottom of each connecting block. Two L-shaped blocks are rotatably sleeved on the outside of each guide rod, two of which are fixedly connected to the first clamping ring and the other two are fixedly connected to the fourth clamping ring. A fixing block is fixedly installed at the top edge of both the second and third clamping rings, and a fixing rod is provided at the top edge of both the first and fourth clamping rings. A sleeve is threaded to the outside of the fixing rod, and a rotating rod is fixedly installed on the side of the sleeve near the second clamping ring. A slot for cooperating with the fixing rod is opened through the top of the fixing block.
[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0008] 1. This application is simple to operate and facilitates the sealing and fixing of the connection between the rotating gas delivery tube and the distillation flask, avoiding the situation where it is easy to deform and lose its sealing effect under long-term rotation or high temperature environment;
[0009] 2. This application allows for the convenient installation of the first and second clamping rings at the mouth of the distillation flask, and the installation of the third and fourth clamping rings on the rotating gas guide tube. Attached Figure Description
[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] Figure 2 This is a schematic diagram of the connection structure between the first clamping ring and the second clamping ring in this utility model.
[0013] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.
[0014] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle.
[0015] In the diagram: 1. Distillation flask; 10. First clamping ring; 11. Second clamping ring; 12. Fixing plate; 13. L-shaped plate; 14. First insert rod; 15. Connecting rod; 16. Spring; 17. Handle; 18. Rotating gas guide tube; 2. Third clamping ring; 20. Fourth clamping ring; 21. Connecting plate; 22. Second insert rod; 23. Slot; 24. Fixing slot; 31. Connecting block; 32. Guide rod; 33. L-shaped block; 34. Fixing block; 35. Fixing rod; 36. Sleeve; 37. Rotating rod; 38. Empty slot; 4. Baffle plate; 5. Fixing seat; 51. Rotating shaft; 6. First rubber pad; 61. Second rubber pad. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Example: Figures 1-4 As shown, this utility model provides a rotary sealing leak-proof structure for a rotary evaporator, including a distillation flask 1. The distillation flask 1 is provided with a first clamping ring 10 and a second clamping ring 11 on its outside. The first clamping ring 10 and the second clamping ring 11 are opposite to each other. A fixing plate 12 is fixedly installed on the outer edge of the first clamping ring 10 and the second clamping ring 11. An L-shaped plate 13 is fixedly installed on the top edge of the fixing plate 12. A first insert rod 14 is movably inserted through the middle of the L-shaped plate 13. A connecting rod 15 is fixedly installed on both sides of the first insert rod 14. A spring 16 is fixedly installed on the lower surface of the L-shaped plate 13. The spring 16 is located outside the first insert rod 14. The bottom end of the spring 16 is in contact with the connecting rod 15. A handle 17 is fixedly installed on the top end of the first insert rod 14.
[0018] One end of the distillation flask 1 is provided with a rotating gas guide tube 18. The outside of the rotating gas guide tube 18 is provided with a third clamping ring 2 and a fourth clamping ring 20. A connecting plate 21 is fixedly installed on the outer edge of the third clamping ring 2 and the fourth clamping ring 20. A second insert rod 22 is fixedly installed on the side of the connecting plate 21 near the fixing plate 12. A slot 23 for cooperating with the second insert rod 22 is passed through the middle of the fixing plate 12. A fixing groove 24 for cooperating with the first insert rod 14 is passed through the top of the second insert rod 22.
[0019] The bottom end edge of the second clamping ring 11 and the third clamping ring 2 is fixedly provided with a connecting block 31, and the bottom of the connecting block 31 is fixedly provided with a guide rod 32. The outer part of each guide rod 32 is rotatably provided with two L-shaped blocks 33. The two L-shaped blocks 33 are fixedly connected with the first clamping ring 10, and the other two L-shaped blocks 33 are fixedly connected with the fourth clamping ring 20. The top end edge of the second clamping ring 11 and the third clamping ring 2 is fixedly provided with a fixed block 34. The top end edge of the first clamping ring 10 and the fourth clamping ring 20 is provided with a fixed rod 35. The outer part of the fixed rod 35 is threadedly connected with a sleeve 36. The side of the sleeve 36 close to the second clamping ring 11 is fixedly provided with a rotating rod 37. The top of the fixed block 34 is provided with an air slot 38 which is used in cooperation with the fixed rod 35.
[0020] The side of each L-shaped plate 13 close to the first inserting rod 14 is fixedly provided with two symmetrically distributed blocking plates 4. When it is needed to separate the distillation bottle 1 from the rotating air guide pipe 18, the first inserting rod 14 is separated from the corresponding fixed slot 24 by pulling the handle 17 upward. Then the handle 17 is rotated to drive the connecting rod 15 to rotate. Then the connecting rod 15 is bounced under the action of the spring 16 to make the bottom end of the connecting rod 15 abut against the top end of the blocking plate 4, so that the first inserting rod 14 is prevented from completely bouncing downward to be inserted into the fixed slot 24, which affects the separation of the distillation bottle 1 from the rotating air guide pipe 18.
[0021] The top end edge of the first clamping ring 10 and the fourth clamping ring 20 is fixedly provided with two symmetrically distributed fixed seats 5. The rotating shaft 51 is rotatably provided between every two fixed seats 5. The rotating shaft 51 is fixedly connected with the fixed rod 35. The sleeve 36 on the first clamping ring 10 is prevented from affecting the abutment of the fixed block 34 on the second clamping ring 11 with the fixed seat 5 on the first clamping ring 10 when the second clamping ring 11 is connected with the first clamping ring 10. Similarly, the sleeve 36 on the fourth clamping ring 20 is prevented from affecting the abutment of the fixed block 34 on the third clamping ring 2 with the fixed seat 5 on the fourth clamping ring 20 when the third clamping ring 2 is connected with the fourth clamping ring 20.
[0022] The inner side of the first clamping ring 10 and the second clamping ring 11 is fixedly provided with the first rubber pad 6. The first rubber pad 6 is arranged to protect the bottle opening of the distillation bottle 1, so that the bottle opening of the distillation bottle 1 is prevented from being damaged due to excessive force when the first clamping ring 10 and the second clamping ring 11 are installed at the bottle opening of the distillation bottle 1, which affects the use of the distillation bottle 1.
[0023] The inner side of the third clamping ring 2 and the fourth clamping ring 20 is fixedly provided with the second rubber pad 61. The second rubber pad 61 is arranged to protect the rotating air guide pipe 18, so that the rotating air guide pipe 18 is prevented from being damaged due to excessive force when the third clamping ring 2 and the fourth clamping ring 20 are installed on the rotating air guide pipe 18, which affects the use of the distillation bottle 1.
[0024] The first clamping ring 10, the second clamping ring 11, the third clamping ring 2 and the fourth clamping ring 20 are made of plastic material and have certain flexibility, so that the first clamping ring 10 and the second clamping ring 11 can be more tightly fixed when being installed at the bottle opening of the distillation bottle 1, and the third clamping ring 2 and the fourth clamping ring 20 can be more tightly fixed when being installed on the rotary gas guide pipe 18.
[0025] The inner diameters of the first clamping ring 10 and the second clamping ring 11 are greater than the inner diameters of the third clamping ring 2 and the fourth clamping ring 20, and the outer diameters of the first clamping ring 10, the second clamping ring 11, the third clamping ring 2 and the fourth clamping ring 20 are consistent.
[0026] Working principle: In actual use, the first clamping ring 10 and the second clamping ring 11 are first sleeved at the bottle opening of the distillation bottle 1, and the third clamping ring 2 and the fourth clamping ring 20 are sleeved at the corresponding positions of the rotary gas guide pipe 18. In work, the fixed plate 12 on the second clamping ring 11 and the first clamping ring 10 is corresponded to the connecting plate 21 on the third clamping ring 2 and the fourth clamping ring 20, the second insertion rod 22 passes through the insertion slot 23 on the fixed plate 12, the connecting plate 21 is attached to the fixed plate 12, then the handle 17 is pulled upward and rotated, the connecting rod 15 is separated from the blocking plate 4, and then under the rebounding action of the spring 16, the first insertion rod 14 is inserted into the fixed groove 24 of the second insertion rod 22, so as to realize the sealing and fixing of the connection part between the rotary gas guide pipe 18 and the distillation bottle 1.
[0027] The first clamping ring 10 and the second clamping ring 11 are sleeved at the bottle opening of the distillation bottle 1, and the third clamping ring 2 and the fourth clamping ring 20 are sleeved at the corresponding positions of the rotary gas guide pipe 18. Specifically, first, the distillation bottle 1 is sleeved at the corresponding position of the rotary gas guide pipe 18, and the first insertion rod 14 is away from the fixed groove 24, then the first clamping ring 10 and the second clamping ring 11 are sleeved at the bottle opening of the distillation bottle 1, the first rubber pad 6 is tightly attached to the outer wall of the distillation bottle 1, the fixed rod 35 passes through the empty slot 38 of the fixed block 34, the rotating rod 37 drives the sleeve 36 to rotate, the second clamping ring 11 and the first clamping ring 10 are tightly fixed together by the threaded connection of the sleeve 36 and the fixed rod 35, then the third clamping ring 2 and the fourth clamping ring 20 are sleeved on the rotary gas guide pipe 18, the sleeve 36 on the fourth clamping ring 20 does not press the fixed block 34 on the third clamping ring 2, only the second rubber pad 61 needs to be tightly contacted with the rotary gas guide pipe 18, the third clamping ring 2 and the fourth clamping ring 20 are attached, the second insertion rod 22 passes through the insertion slot 23, the connecting plate 21 is attached to the fixed plate 12, the first insertion rod 14 is inserted into the fixed groove 24, and then the third clamping ring 2 and the fourth clamping ring 20 are fixed together by rotating the sleeve 36 through the rotating rod 37.
[0028] After installation, when the second inserting rod 22 is pulled up to a certain position, the second inserting rod 22 is rotated to make the connecting rod 15 fall on the blocking plate 4, and then the distillation bottle 1 and the first clamping ring 10, the second clamping ring 11 and the components on the first clamping ring 10, the second clamping ring 11 are separated from the rotating air guide pipe 18 and the third clamping ring 2, the fourth clamping ring 20 and the components on the third clamping ring 2, the fourth clamping ring 20.
[0029] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.
Claims
1. A rotary evaporator rotary seal leak-proof structure, comprising a distillation flask (1), characterized in that: The outside of the distillation flask (1) is provided with a first clamping ring (10) and a second clamping ring (11), the first clamping ring (10) and the second clamping ring (11) are in opposite state, the outside edge of the first clamping ring (10) and the second clamping ring (11) is fixedly installed with a fixed plate (12), the top edge of the fixed plate (12) is fixedly installed with an L-shaped plate (13), the middle part of the L-shaped plate (13) is movably penetrated with a first inserting rod (14), the two sides of the first inserting rod (14) are fixedly installed with a connecting rod (15), the lower surface of the L-shaped plate (13) is fixedly installed with a spring (16), the spring (16) is located outside the first inserting rod (14), the bottom end of the spring (16) is attached to the connecting rod (15), the top end of the first inserting rod (14) is fixedly installed with a handle (17). One end of the distillation flask (1) is provided with a rotating air guide pipe (18), the outside of the rotating air guide pipe (18) is provided with a third clamping ring (2) and a fourth clamping ring (20), the outside edge of the third clamping ring (2) and the fourth clamping ring (20) is fixedly installed with a connecting plate (21), the side close to the fixed plate (12) of the connecting plate (21) is fixedly installed with a second inserting rod (22), the middle part of the fixed plate (12) is penetrated with a inserting slot (23) used in cooperation with the second inserting rod (22), the top end of the second inserting rod (22) is penetrated with a fixed slot (24) used in cooperation with the first inserting rod (14).
2. A rotary evaporator rotating seal leak-proof structure according to claim 1, characterized in that, The bottom edge of the second clamping ring (11) and the third clamping ring (2) is fixedly installed with a connecting block (31), the bottom of the connecting block (31) is fixedly installed with a guide rod (32), the outside of each guide rod (32) is rotatably sleeved with two L-shaped blocks (33), two of the L-shaped blocks (33) are fixedly connected with the first clamping ring (10), and the other two L-shaped blocks (33) are fixedly connected with the fourth clamping ring (20), the top edge of the second clamping ring (11) and the third clamping ring (2) is fixedly installed with a fixed block (34), the top edge of the first clamping ring (10) and the fourth clamping ring (20) is provided with a fixed rod (35), the outside of the fixed rod (35) is threadedly connected with a sleeve (36), the side close to the second clamping ring (11) of the sleeve (36) is fixedly installed with a rotating rod (37), the top of the fixed block (34) is penetrated with an empty slot (38) used in cooperation with the fixed rod (35).
3. The rotary evaporator rotating seal leak-proof structure according to claim 1, characterized in that, The side close to the first inserting rod (14) of each L-shaped plate (13) is fixedly installed with two symmetrically distributed blocking plates (4).
4. The rotary evaporator rotating seal leak-proof structure according to claim 2, characterized in that, The top edge of the first clamping ring (10) and the fourth clamping ring (20) is fixedly installed with two symmetrically distributed fixed seats (5), a rotating shaft (51) is rotatably penetrated between every two fixed seats (5), and the rotating shaft (51) is fixedly connected with the fixed rod (35).
5. The rotary evaporator rotating seal leak-proof structure according to claim 1, characterized in that, The inside of the first clamping ring (10) and the second clamping ring (11) is fixedly installed with a first rubber pad (6).
6. A rotary evaporator rotating seal leak-proof structure according to claim 1, characterized in that, The inside of the third clamping ring (2) and the fourth clamping ring (20) is fixedly installed with a second rubber pad (61).
7. A rotary evaporator rotating seal leak-proof structure according to claim 1, characterized in that, The first clamping ring (10), the second clamping ring (11), the third clamping ring (2) and the fourth clamping ring (20) are made of plastic.
8. A rotary evaporator rotating seal leak-proof structure according to claim 1, characterized in that, The inner diameters of the first clamping ring (10) and the second clamping ring (11) are greater than the inner diameters of the third clamping ring (2) and the fourth clamping ring (20), and the outer diameters of the first clamping ring (10), the second clamping ring (11), the third clamping ring (2) and the fourth clamping ring (20) are consistent.