Rotary evaporator adapter

Abstract

The utility model relates to the technical field of laboratory instruments and equipment, and discloses a rotary evaporator adapter which comprises an adapter body, a standard connector used for being connected with a rotary evaporator is arranged at the top end of the adapter body, a groove is formed in the inner ring of the bottom end of the adapter body, and a fixing ring is embedded in the groove. A plurality of clamping plates used for clamping container openings with different diameters are distributed on the inner ring side wall of the fixing ring in the circumferential direction, each clamping plate slidably penetrates through the fixing ring and slides in the axis direction of the fixing ring, an adjusting mechanism is arranged on the fixing ring, and the adjusting mechanism is used for driving the multiple clamping plates to synchronously slide in the axis direction of the fixing ring. A sealing gasket is arranged on the inner top wall of the fixing ring, and the sealing gasket communicates with the center hole of the fixing ring. The application has the effect of improving the universality and flexibility of the adapter.

Description

Technical Field

[0001] The present application relates to the technical field of laboratory instruments and equipment, and in particular to a rotary evaporator adapter. Background Art

[0002] The rotary evaporator is a highly efficient separation and purification instrument commonly used in laboratories, widely used in the chemical, pharmaceutical, and other fields. With the continuous advancement and development of scientific research, the types of containers required for various experiments are becoming increasingly diverse, especially the increasing use of small containers. Therefore, improving the efficiency of rotary evaporators and the accuracy of experimental results when handling different container types has become a key research topic.

[0003] Most rotary evaporator adapters currently available are made of a fixed glass material. These adapters have a relatively simple design and typically only accommodate specific ring sizes (e.g., #29, 24, 19, 14). This single design limits their applicability when used with a wide variety of container sizes and materials. To overcome this challenge, laboratories often choose two common approaches: customizing adapters to specific ring sizes based on different experimental requirements; or employing temporary manual adjustments, such as using tape, rubber stoppers, and other tools.

[0004] However, both methods have limitations. Customized adapters not only increase time and financial costs but are also not suitable for frequent container changes. Manual adjustments, while simple, are not stable and may pose a risk of sample contamination. Furthermore, due to design and material limitations, traditional adapters are difficult to flexibly adapt to containers of different specifications and materials, and perform poorly especially when processing small-volume samples. These issues directly impact experimental efficiency and the reliability of the final results. Utility Model Content

[0005] In order to improve the versatility and flexibility of the adapter, the present application provides a rotary evaporator adapter.

[0006] The rotary evaporator adapter provided in this application adopts the following technical solution:

[0007] A rotary evaporator adapter comprises an adapter body, the top of the adapter body is provided with a standard interface for connecting to a rotary evaporator, the inner ring of the bottom end of the adapter body is provided with a groove, a fixing ring is embedded in the groove, and a plurality of clamping plates for clamping container openings of different diameters are circumferentially arranged on the inner ring side wall of the fixing ring, each of the clamping plates slides through the fixing ring and slides toward the axial direction of the fixing ring, an adjustment mechanism is provided on the fixing ring, and the adjustment mechanism is used to drive the plurality of clamping plates to slide synchronously toward the axial center direction of the fixing ring, a sealing gasket is provided on the inner top wall of the fixing ring, and the sealing gasket is connected to the center hole of the fixing ring.

[0008] By adopting the above technical solution, when using the adapter, first connect the standard interface on the upper end of the adapter body to the rotary evaporator. Next, place the container opening to be connected into the retaining ring. The adjustment mechanism drives the clamping plate inside the retaining ring to move synchronously, shrinking and fitting the container opening. At this time, the sealing gasket ensures the sealing performance of the connection. The rotary evaporator adapter can effectively clamp container openings of different diameters, improving the adapter's versatility and flexibility. At the same time, the provision of the sealing gasket ensures a good sealing effect, further improving the stability and reliability during the experiment.

[0009] Optionally, a cavity is opened inside the fixing ring, and the adjustment mechanism includes an adjustment ring coaxially rotatably arranged in the cavity, a plurality of guide bevels arranged on the inner ring side wall along the circumference of the adjustment ring, and a push rod arranged on the clamping plate, the guide bevels and the push rods all correspond to the clamping plates one by one, the push rod slides through the side wall of the fixing ring, and its end located in the cavity is arranged to interfere with the corresponding guide bevel, and its end extending out of the cavity is arranged on the clamping plate.

[0010] By adopting the above technical solution, the design drives the guide bevel block to push the push rod through the rotation of the adjustment ring, thereby causing the clamping plate to slide synchronously toward the axial direction of the fixed ring, thereby achieving clamping of container openings of different diameters, thereby improving the versatility and flexibility of the adapter.

[0011] Optionally, the adjustment mechanism also includes a driving assembly for driving the adjustment ring to rotate, the driving assembly including a driven bevel gear ring sleeved on the side wall of the outer ring of the adjustment ring, a driving bevel gear meshing with the driven bevel gear ring, and a knob for driving the driving bevel gear to rotate, the knob is rotatably arranged on the outer side wall of the adapter body and sleeved on the end of the driving bevel gear shaft extending out of the adapter body.

[0012] By adopting the above technical solution, the experimenter can drive the active bevel gear to rotate by turning the knob. At this time, the driven bevel gear ring engaged with it rotates synchronously, thereby driving the adjustment ring to rotate. Under the guidance of the guide bevel block, the push rod drives the clamping plate to slide synchronously toward the axial direction of the fixed ring, thereby conveniently adapting to container openings of different diameters, improving the versatility and flexibility of the adapter, ensuring the stability of container fixation during the experiment, avoiding sample contamination, and improving experimental efficiency and the reliability of results.

[0013] Optionally, a spherical end block is provided on the end of the push rod located in the cavity, and the end block is arranged to interfere with the guide bevel block.

[0014] By adopting the above technical solution, the part of the push rod located in the cavity is set as a spherical end block. The interference setting between the end block and the guide bevel block enables the guide bevel block to smoothly push the push rod when the adjusting ring rotates, thereby allowing the clamping plate to slide smoothly toward the axial direction of the fixed ring, thereby improving the stability and reliability of the clamping process.

[0015] Optionally, a spring is sleeved on the rod body of the push rod located in the cavity, and the spring abuts between the end block and the inner wall of the cavity.

[0016] By adopting the above technical solution, the spring abuts between the end block and the inner wall of the cavity, so that when the container needs to be removed after the rotary evaporation work is stopped, the clamping plate can automatically reset through the elastic force of the spring, thereby improving the stability and flexibility when clamping the container mouths of different diameters.

[0017] Optionally, the clamping plate is arranged in an arc shape, and the arc center of the clamping plate is located on a side close to the axis direction of the fixing ring.

[0018] By adopting the above technical solution, the clamping plate is arranged in an arc shape, and the arc center of the clamping plate is located on the side close to the axis direction of the fixing ring, so that the clamping plate can better fit the shape of the container mouth with different diameters, thereby enhancing the stability of the container and reducing the possibility of container shaking.

[0019] Optionally, a rubber pad is provided on the inner arc surface of the clamping plate facing the axis of the fixing ring.

[0020] By adopting the above technical solution, the provision of the rubber pad can enhance the friction between the clamping plate and the container mouth, thereby improving the stability of the container fixation, reducing the shaking of the sample during the rotary evaporation process, and ensuring the accuracy of the experimental results.

[0021] Optionally, the fixing ring is provided with a plurality of positioning through holes along the circumference of its own center hole, and a plug rod is provided on the top wall of the sealing gasket corresponding to each positioning through hole, and a plug is provided at the end of each plug rod, and the plug rod and the plug are both made of flexible material. When the sealing gasket is installed in the fixing ring, the plug rod is inserted into the corresponding positioning through hole, and the plug is provided in contact with the top wall of the fixing ring.

[0022] By adopting the above technical solution, the removable sealing gasket makes it easy to select the appropriate sealing gasket according to different experimental environments. For example, Teflon gaskets have excellent corrosion resistance and are particularly suitable for strong acid and alkali environments; nitrile rubber gaskets have excellent oil resistance and are suitable for experiments containing aliphatic compounds. The flexible plug-in rod and plug not only facilitate the replacement of spare sealing gaskets, but also improve the stability of the sealing gasket's installation within the retaining ring and the precision of the through-hole connection between the sealing gasket and the center hole of the retaining ring. This prevents the sealing gasket from shifting or falling off during operation, enhances the sealing effect, and improves the reliability and safety of the experimental process.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. To use, first connect the standard connector on the upper end of the adapter body to the rotary evaporator. Next, place the container opening to be connected into the retaining ring. The adjustment mechanism drives the clamping plate inside the retaining ring to move synchronously, shrinking and fitting the container opening. The sealing gasket ensures the sealing performance of the connection. The rotary evaporator adapter can effectively clamp container openings of different diameters, improving the versatility and flexibility of the adapter. At the same time, the setting of the sealing gasket ensures a good sealing effect, further improving the stability and reliability during the experiment.

[0025] 2. This design uses the rotation of the adjusting ring to drive the guide bevel to push the push rod, which in turn causes the clamping plate to slide toward the axis of the fixed ring. This allows clamping of containers with different diameters, improving the versatility and flexibility of the adapter.

[0026] 3. The experimenter turns the knob to drive the active bevel gear to rotate. At this time, the driven bevel gear ring engaged with it rotates synchronously, thereby driving the adjustment ring to rotate. Under the guidance of the guide bevel block, the push rod drives the clamping plate to slide synchronously toward the axial direction of the fixed ring. This makes it easy to adapt to container openings of different diameters, improves the versatility and flexibility of the adapter, ensures the stability of container fixation during the experiment, avoids sample contamination, and improves experimental efficiency and the reliability of results. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view showing the internal structure of the fixing ring in the embodiment of the present application.

[0029] Figure 3 It is a cross-sectional view showing the connection relationship between the sealing gasket and the fixing ring in the embodiment of the present application.

[0030] Description of reference numerals:

[0031] 1. Adapter body; 11. Standard interface; 12. Groove; 2. Retaining ring; 21. Cavity; 22. Positioning hole; 3. Clamping plate; 31. Rubber pad; 4. Adjustment mechanism; 41. Adjustment ring; 42. Guide bevel block; 43. Push rod; 431. End block; 44. Drive assembly; 441. Driven bevel gear ring; 442. Driving bevel gear; 443. Knob; 5. Sealing gasket; 51. Connecting rod; 511. Plug; 6. Spring. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-3 This application is described in further detail.

[0033] The embodiment of the present application discloses a rotary evaporator adapter.

[0034] Reference Figure 1 and Figure 2 A rotary evaporator adapter includes an adapter body 1, and a standard interface 11 is provided at the top of the adapter body 1. The standard interface 11 is used to connect to the rotary evaporator. A groove 12 is provided on the inner ring of the bottom end of the adapter body 1, and a fixing ring 2 is fixedly embedded in the groove 12. A number of clamping plates 3 are arranged along the circumferential direction on the side wall of the inner ring of the fixing ring 2. In this embodiment, four clamping plates 3 are arranged in an arc shape, and the arc center is located on the side close to the axis direction of the fixing ring 2. A rubber pad 31 is fixedly provided on the inner arc surface of the clamping plate 3 facing the axis direction of the fixing ring 2. An adjustment mechanism 4 is provided on the fixing ring 2, and the adjustment mechanism 4 drives the four clamping plates 3 to slide through the fixing ring 2 together and slide toward the axis direction of the fixing ring 2. A sealing gasket 5 is detachably provided on the inner top wall of the fixing ring 2.

[0035] Reference Figure 1 and Figure 2 To use, first connect the standard interface 11 on the upper end of the adapter body 1 to the rotary evaporator. Next, place the container opening to be connected into the fixing ring 2. The adjustment mechanism 4 drives the clamping plate 3 inside the fixing ring 2 to move synchronously, shrinking and fitting the container opening. At this time, the sealing gasket 5 ensures the sealing performance of the connection.

[0036] Reference Figure 2A cavity 21 is opened inside the fixed ring 2. The adjustment mechanism 4 includes an adjusting ring 41, a guide bevel 42, a push rod 43 and a drive assembly 44. The adjusting ring 41 is coaxially rotatable in the cavity 21. The guide bevel 42 is integrally formed on the inner ring side wall of the adjusting ring 41, and several guide bevels 42 and push rods 43 are distributed circumferentially along the adjusting ring 41. The guide bevels 42 and push rods 43 correspond to the clamping plates 3 one by one. The push rod 43 slides through the side wall of the fixed ring 2, and its end extending out of the cavity 21 is fixedly set on the clamping plate 3.

[0037] Reference Figure 2 The end of the push rod 43 located in the cavity 21 is integrally formed with a spherical end block 431, which is arranged to abut against the corresponding guide bevel block 42. A spring 6 is sleeved on the rod body of the push rod 43 located in the cavity 21, and the spring 6 abuts between the end block 431 and the inner wall of the cavity 21.

[0038] Reference Figure 2 The drive assembly 44 includes a driven bevel gear ring 441, a driving bevel gear 442, and a knob 443. The driven bevel gear ring 441 is fixedly mounted on the top wall of the outer ring of the adjustment ring 41. The driving bevel gear 442 is located within the cavity 21 and meshes with the driven bevel gear ring 441. The driving bevel gear 442 is rotatably mounted on the inner sidewall of the cavity 21, and its rotating shaft rotates through the sidewalls of the fixed ring 2 and the adapter body 1 and extends out of the adapter body 1. The knob 443 is fixedly mounted on the end of the rotating shaft of the driving bevel gear 442 that extends out of the adapter body 1, and the knob 443 rotatably engages with the outer sidewall of the adapter body 1.

[0039] Reference Figure 3 The sealing gasket 5 can be made of suitable materials according to different experimental environments, such as Teflon gaskets and nitrile rubber gaskets. Teflon gaskets have good corrosion resistance and are particularly suitable for strong acid and strong alkali environments; nitrile rubber gaskets have excellent oil resistance and are suitable for processing experiments containing aliphatic compounds. There are multiple positioning through holes 22 distributed along the circumference of the center hole of the fixing ring 2. This embodiment takes four as an example. A number of plug rods 51 are fixedly provided on the top wall of each sealing gasket 5. The plug rods 51 correspond to the positioning through holes 22 one by one and are plugged in. The end of each plug rod 51 is integrally formed with a plug 511. The plug rod 51 and the plug 511 are both made of flexible materials. This embodiment uses corrosion-resistant rubber material to make the plug rod 51 and the plug 511.

[0040] Reference Figure 3 When the sealing gasket 5 is installed in the fixing ring 2 , the plug rod 51 is inserted into the corresponding positioning through hole 22 , and at this time, the plug 511 is in contact with the top wall of the fixing ring 2 .

[0041] The operating principle of a rotary evaporator adapter according to the present embodiment is as follows: To use, first connect the standard interface 11 at the upper end of the adapter body 1 to the rotary evaporator. Next, place the container opening to be connected into the retaining ring 2. Turning the knob 443 causes the driving bevel gear 442 to rotate. This synchronizes the rotation of the meshing driven bevel gear ring 441, which in turn drives the adjustment ring 41. The push rod 43, guided by the guide ramp 42, causes the clamping plate 3 to slide synchronously toward the axis of the retaining ring 2, shrinking and fitting the container opening. The sealing gasket 5 ensures the sealing performance of the connection.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A rotary evaporator adapter, characterized in that , comprising an adapter body (1), the top of the adapter body (1) is provided with a standard interface (11) for connecting to a rotary evaporator, the inner ring of the bottom end of the adapter body (1) is provided with a groove (12), a fixing ring (2) is embedded in the groove (12), a plurality of clamping plates (3) for clamping container openings of different diameters are arranged along the circumferential direction on the inner ring side wall of the fixing ring (2), each of the clamping plates (3) is slidably passed through the fixing ring (2) and slides toward the axial direction of the fixing ring (2), an adjusting mechanism (4) is provided on the fixing ring (2), the adjusting mechanism (4) is used to drive the plurality of clamping plates (3) to slide synchronously toward the axial center direction of the fixing ring (2), a sealing gasket (5) is provided on the inner top wall of the fixing ring (2), and the sealing gasket (5) is connected to the center hole of the fixing ring (2).

2. A rotary evaporator adapter according to claim 1, characterized in that The fixing ring (2) has a cavity (21) formed therein, and the adjusting mechanism (4) includes an adjusting ring (41) coaxially rotatably arranged in the cavity (21), a plurality of guide bevels (42) arranged on the inner ring side wall along the circumference of the adjusting ring (41), and a push rod (43) arranged on the clamping plate (3). The guide bevels (42) and the push rod (43) are in one-to-one correspondence with the clamping plate (3). The push rod (43) slides through the side wall of the fixing ring (2), and its end portion located in the cavity (21) is in contact with the corresponding guide bevel (42), and its end portion extending out of the cavity (21) is arranged on the clamping plate (3).

3. A rotary evaporator adapter according to claim 2, characterized in that The adjusting mechanism (4) further comprises a driving assembly (44) for driving the adjusting ring (41) to rotate, the driving assembly (44) comprising a driven bevel gear ring (441) sleeved on the outer ring side wall of the adjusting ring (41), a driving bevel gear (442) meshed with the driven bevel gear ring (441), and a knob (443) for driving the driving bevel gear (442) to rotate, the knob (443) being rotatably arranged on the outer side wall of the adapter body (1) and sleeved on the end of the rotating shaft of the driving bevel gear (442) extending out of the adapter body (1).

4. A rotary evaporator adapter according to claim 2, characterized in that A spherical end block (431) is provided on the end of the push rod (43) located in the cavity (21), and the end block (431) is arranged to abut against the guide bevel block (42).

5. A rotary evaporator adapter according to claim 4, characterized in that The push rod (43) is located in the cavity (21) and is sleeved with a spring (6). The spring (6) abuts between the end block (431) and the inner wall of the cavity (21).

6. A rotary evaporator adapter according to claim 1, characterized in that The clamping plate (3) is arranged in an arc shape, and the arc center of the clamping plate (3) is located on the side close to the axis direction of the fixing ring (2).

7. A rotary evaporator adapter according to claim 6, characterized in that A rubber pad (31) is provided on the inner arc surface of the clamping plate (3) facing the axis direction of the fixing ring (2).

8. The rotary evaporator adapter according to claim 1, characterized in that The fixing ring (2) is provided with a plurality of positioning through holes (22) along the circumference of its own center hole. A plug rod (51) is provided on the top wall of the sealing gasket (5) corresponding to each positioning through hole (22). A plug (511) is provided at the end of each plug rod (51). The plug rod (51) and the plug (511) are both made of flexible material. When the sealing gasket (5) is installed in the fixing ring (2), the plug rod (51) is plugged into the corresponding positioning through hole (22), and the plug (511) is provided in contact with the top wall of the fixing ring (2).

Images