A joint for rotary evaporator

Abstract

The utility model relates to chemical apparatus technical field discloses a joint for rotary evaporator, including fixed plate no.

Description

Technical Field

[0001] This utility model relates to the field of chemical instrument technology, and in particular to a connector for a rotary evaporator. Background Technology

[0002] The connectors for rotary evaporators are key components of the instrument, used to connect various components and ensure the airtightness and stability of the device. The connectors for rotary evaporators are mostly made of glass or polytetrafluoroethylene (PTFE). Glass connectors are transparent and easy to observe, while PTFE connectors are corrosion-resistant and resistant to high and low temperatures. Common types include ground glass connectors (such as 24 / 40 and 29 / 42 standard ground glass connectors), which rely on the conical surface to fit and seal. Vacuum grease needs to be applied to enhance airtightness. There are also flexible hose connectors, which are adapted to connect rubber or silicone tubes to condenser tubes, vacuum pumps, etc.

[0003] The working principle of the connector for a rotary evaporator is based on the synergistic effect of a sealed connection and a vacuum device. The connector connects the evaporation flask, condenser tube, vacuum pump and other components into a sealed device through the conical surface fitting of a standard ground joint (such as 24 / 40) or the tight clamping design of a hose. When the instrument is running, the vacuum pump draws air to form a negative pressure. The conical surface of the ground joint is filled with vacuum grease to eliminate gaps. The hose connector relies on the deformation of the elastic material to tighten the pipeline and prevent outside air from seeping in.

[0004] Rotary evaporators rely on the tight fit of conical surfaces to achieve a seal. After long-term use, the vacuum grease may dry out or adsorb impurities, which can exacerbate the adhesion of the ground joint. Especially after processing high-viscosity samples or highly corrosive solvents, crystals or deposits may remain in the gaps of the ground joint, causing the joint to become stuck and difficult to separate. To address this issue, a new type of joint for rotary evaporators is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a connector for a rotary evaporator, which aims to improve the problem of inconvenient disassembly in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A connector for a rotary evaporator includes a fixed plate, a lock body installed on the outside of the fixed plate, a sliding column slidably connected inside the lock body, a spring sleeved on the outer wall of the sliding column, a fixed block fixedly connected to the outside of the sliding column, a support rod rotatably connected to the outside of the fixed block, a nut threadedly connected to the outside of the lock body, and a rotating assembly provided on the outside of the fixed plate.

[0008] As a further description of the above technical solution:

[0009] A top plate is fixedly connected to the top of the lock body, and a handle is fixedly connected to the outside of the top plate;

[0010] As a further description of the above technical solution:

[0011] The rotating assembly includes a semi-circular ring one, one end of which is rotatably connected to a semi-circular ring two, a sealing ring is fixedly connected inside the semi-circular ring two, and an anti-breakage layer is installed inside the semi-circular ring one.

[0012] As a further description of the above technical solution:

[0013] A fixing plate is fixedly connected to the outside of the second semicircular ring, and the fixing plate is fixedly connected to the outside of the first semicircular ring.

[0014] As a further description of the above technical solution:

[0015] A frosted layer is fixedly connected to the outside of the shatterproof layer, and a glass layer is fixedly connected to the inside of the shatterproof layer;

[0016] As a further description of the above technical solution:

[0017] A fixing ring is fixedly connected to the bottom of the rupture-resistant layer, and the second semi-circular ring is in contact with the top of the rupture-resistant layer;

[0018] As a further description of the above technical solution:

[0019] The nut is externally fixedly connected to multiple rotating columns, and the support rod is externally rotatably connected to the outer wall of the lock body;

[0020] As a further description of the above technical solution:

[0021] The shatterproof layer is made of polyester film, and the glass layer is made of borosilicate glass.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the slots of semicircular ring one and semicircular ring two are aligned with the top of the anti-rupture layer and the bottom protrusion of the condenser pipe, and rotated to engage. The internal sealing ring prevents steam leakage. Press the sliding column to retract the support rod, insert the lock body into the fixing plate one and fixing plate two, and the top of the fixing block supports the outer wall of the fixing plate two. Rotate the rotating column to drive the nut to rotate on the lock body, so that the outer wall of the rotating column clamps the fixing plate one, clamps the fixing plate one and fixing plate two, and fixes the anti-rupture layer and the condenser pipe.

[0024] 2. In this utility model, the anti-breakage layer is a polyester film, which is glued to the glass surface to hold the fragments together and prevent them from splashing when broken. The frosted layer is treated with a precision frosting process, which fits tightly with the interface, reduces steam leakage, and allows for smooth rotation. The glass layer is high borosilicate glass, which has good chemical stability, high temperature resistance, and transparency, making it easy to observe the interior and suitable for conventional solution distillation and concentration. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a connector for a rotary evaporator proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the anti-breakage layer structure of a connector for a rotary evaporator proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a semi-circular ring two for a rotary evaporator connector proposed in this utility model;

[0028] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 5 This is a schematic diagram of the structure of the frosted layer of a connector for a rotary evaporator proposed in this utility model.

[0030] Legend:

[0031] 1. Anti-breakage layer; 2. Frosted layer; 3. Glass layer; 4. Fixing ring; 5. Semi-circular ring one; 6. Semi-circular ring two; 7. Fixing plate two; 8. Fixing plate one; 9. Sealing ring; 10. Lock body; 11. Sliding column; 12. Spring; 13. Fixing block; 14. Support rod; 15. Nut; 16. Rotating column; 17. Top plate; 18. Handle. Detailed Implementation

[0032] 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.

[0033] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a connector for a rotary evaporator, comprising a fixing plate 8, a locking body 10 mounted on the outside of the fixing plate 8, the locking body 10 serving as the core locking component, a sliding column 11 slidably connected inside the locking body 10, the sliding column 11 sliding within the locking body 10, achieving locking and unlocking functions through movement, a spring 12 sleeved on the outer wall of the sliding column 11, the spring 12 providing elastic potential energy, and a fixing block 13 fixedly connected to the outside of the sliding column 11, the fixing block 13 being connected to a groove on the outer side of the sliding column 11. A support rod 14 is rotatably connected to the outside of the fixed block 13. The support rod 14 is installed on the fixed block 13 and swings with the movement of the sliding column 11. A nut 15 is threadedly connected to the outside of the lock body 10. The nut 15 is threadedly engaged with the lock body 10. Locking is achieved by rotating the nut 15. Multiple rotating columns 16 are fixedly connected to the outside of the nut 15. The rotating columns 16 are fixed on the outer surface of the nut 15 to provide a force application point for the operator to rotate the nut 15. The support rod 14 is rotatably connected to the outside of the lock body 10. The support rod 14 is installed on the outer wall of the lock body 10 through a rotatable connection for fixation.

[0034] Reference Figure 1 , Figure 3 and Figure 5A top plate 17 is fixedly connected to the top of the lock body 10. A handle 18 is fixedly connected to the outside of the top plate 17, serving as a manual operation interface for easy gripping of the connector and quick installation or removal of the connector from the rotary evaporator interface, improving operational convenience. A rotating assembly is installed on the outside of the fixed plate 8. The rotating assembly includes a semi-circular ring 5, one end of which is rotatably connected to a second semi-circular ring 6. The second semi-circular ring 6 connects to the first semi-circular ring 5 and can rotate around the connection point to form an opening and closing structure, facilitating connector insertion or removal. The rotating connection ensures smooth opening and closing. A sealing ring 9 is fixedly connected inside the second semi-circular ring 6, fixed to the inner wall of the second semi-circular ring 6. When the first semi-circular ring 5 and the second semi-circular ring 6 are closed, the sealing ring 9 tightly fits against the outer wall of the pipe, forming a sealing structure to prevent leakage during the rotary evaporation process. To prevent liquid vapor leakage or external air ingress, and to ensure the stability of the vacuum environment, a fixing ring 4 is fixedly connected to the bottom of the shatterproof layer 1. The fixing ring 4 ensures the stability of the position of the shatterproof layer 1. The semi-circular ring 6 contacts the top of the shatterproof layer 1, fixing the shatterproof layer 1 in close contact. The shatterproof layer 1 is installed inside the semi-circular ring 5. A frosted layer 2 is fixedly connected to the outside of the shatterproof layer 1. The frosted layer 2 is fixed to the outer surface of the shatterproof layer 1, and the rough surface texture increases friction. A glass layer 3 is fixedly connected inside the shatterproof layer 1. The material of the shatterproof layer 1 is polyester film. Polyester film has high strength, wear resistance and tear resistance properties, protecting the inner glass layer 3 from external impact damage. The material of the glass layer 3 is high borosilicate glass. High borosilicate glass has the characteristics of low thermal expansion coefficient, high temperature resistance and strong chemical stability, ensuring that the structure remains stable during high-temperature evaporation and does not react with chemical reagents, ensuring experimental safety and accuracy.

[0035] Working principle: Align the slots of semicircular ring 5 and semicircular ring 6 with the top protrusion of the anti-breakage layer 1 and the bottom protrusion of the condenser tube. Rotate semicircular ring 5 to engage. Semicircular rings 5 ​​and 6 have sealing rings 9 inside, which act as a seal to prevent steam leakage. Press the sliding column 11, causing the support rod 14 on the outer wall of the sliding column 11 to rotate and retract, allowing the lock body 10 to insert into the fixing plate 7 and fixing plate 8. The top of the fixing block 13 rests on the outer wall of the fixing plate 7. Rotate the rotating column 16, which drives the nut 15 to rotate, causing the nut 15 to rotate on the lock body 10. The outer wall of the rotating column 16 is locked onto the outer wall of the fixing plate 8, clamping the fixing plate 7 and the fixing plate 8 together. This causes the semicircular rings 5 ​​and 6 to fix the shatterproof layer 1 and the condenser tube. The shatterproof layer 1 is a polyester film that is glued to the glass surface. When broken, it can hold glass fragments in place to prevent them from splashing. The frosted layer 2 is made of frosted material and is processed by a precision frosting process. It fits tightly to the interface to reduce vapor leakage and maintains smoothness during rotation. The glass layer 3 is made of high borosilicate glass, which has excellent chemical stability, high temperature resistance, and transparency, making it easy to observe the internal conditions. It is suitable for the distillation and concentration of conventional solutions.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A joint for rotary evaporator comprising a fixed plate one (8), characterized in that: A lock body (10) is installed on the outside of the first fixing plate (8). A sliding column (11) is slidably connected inside the lock body (10). A spring (12) is sleeved on the outer wall of the sliding column (11). A fixing block (13) is fixedly connected to the outside of the sliding column (11). A support rod (14) is rotatably connected to the outside of the fixing block (13). A nut (15) is threadedly connected to the outside of the lock body (10). A rotating assembly is provided on the outside of the first fixing plate (8).

2. The connector for a rotary evaporator according to claim 1, characterized in that: The top of the lock body (10) is fixedly connected to a top plate (17), and a handle (18) is fixedly connected to the outside of the top plate (17).

3. The connector for a rotary evaporator according to claim 1, characterized in that: The rotating assembly includes a semi-circular ring one (5), one end of which is rotatably connected to a semi-circular ring two (6), a sealing ring (9) is fixedly connected inside the semi-circular ring two (6), and an anti-breakage layer (1) is installed inside the semi-circular ring one (5).

4. A connector for a rotary evaporator according to claim 3, characterized in that: The outer side of the second semicircular ring (6) is fixedly connected to a second fixing plate (7), and the first fixing plate (8) is fixedly connected to the outer side of the first semicircular ring (5).

5. A connector for a rotary evaporator according to claim 3, characterized in that: The outer side of the shatterproof layer (1) is fixedly connected to a frosted layer (2), and the inner side of the shatterproof layer (1) is fixedly connected to a glass layer (3).

6. A connector for a rotary evaporator according to claim 3, characterized in that: The bottom of the rupture-resistant layer (1) is fixedly connected to a fixing ring (4), and the second semicircular ring (6) is in contact with the top of the rupture-resistant layer (1).

7. A connector for a rotary evaporator according to claim 1, characterized in that: The nut (15) is externally fixedly connected to a plurality of rotating columns (16), and the support rod (14) is externally rotatably connected to the outer wall of the lock body (10).

8. A connector for a rotary evaporator according to claim 5, characterized in that: The anti-breakage layer (1) is made of polyester film, and the glass layer (3) is made of borosilicate glass.

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