Rotary evaporator

Abstract

The utility model relates to the technical field of evaporation test equipment, and discloses a rotary evaporator, which comprises a mounting structure, each rotary evaporation structure is rotatably connected with the mounting structure, and the multiple rotary evaporation structures are arranged at intervals; the driving motor is connected with the mounting structure; the transmission device is connected with the multiple rotary evaporation structures, and the driving motor is in transmission connection with the transmission device and used for driving the multiple rotary evaporation structures to rotate; the water bath device is arranged corresponding to the first ends of the plurality of rotary evaporation structures and is used for heating the plurality of rotary evaporation structures. The driving motor of the rotary evaporator can drive the plurality of rotary evaporation structures to rotate synchronously through the transmission device, so that the number of driving motors is reduced, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporation test equipment, in particular to a rotary evaporator. Background Art

[0002] Laboratories often use rotary evaporators for sample pretreatment, but the rotary evaporators in related technologies usually have only one head, which is not very efficient. Therefore, some technologies have designed multi-head rotary evaporators that can process multiple samples at a time and improve work efficiency. However, each head of the multi-head rotary evaporator needs to be equipped with a separate drive motor, which is costly. Utility Model Content

[0003] In view of this, the utility model provides a rotary evaporator to solve the problem that each head of a multi-head rotary evaporator needs to be provided with a separate driving motor.

[0004] The utility model provides a rotary evaporator, comprising: a mounting structure; a plurality of rotary evaporation structures, each of which is rotatably connected to the mounting structure, and the plurality of rotary evaporation structures are arranged at intervals; a driving motor connected to the plurality of mounting structures; a transmission device connected to the plurality of rotary evaporation structures, the driving motor being transmission-connected to the transmission device to drive the plurality of rotary evaporation structures to rotate; and a water bath device, which is arranged corresponding to the first ends of the plurality of rotary evaporation structures and is used to heat the plurality of rotary evaporation structures.

[0005] Beneficial effects: In the rotary evaporator of the utility model, the driving motor can drive multiple rotary evaporation structures to rotate synchronously through the transmission device, which reduces the number of driving motors and reduces the cost, and the multiple rotary evaporation structures have good synchronization.

[0006] In an optional embodiment, the transmission device includes: a plurality of first transmission gears, the plurality of first transmission gears are arranged corresponding to the plurality of rotary evaporation structures, each of the first transmission gears is connected to the outer peripheral surface of the corresponding rotary evaporation structure; a second transmission gear, which is transmission-connected to the motor shaft of the drive motor, and the plurality of first transmission gears are all meshed with the second transmission gear.

[0007] Beneficial effects: The rotation speeds of multiple rotary evaporation structures are the same or approximately the same, which can effectively ensure the synchronization of the multiple rotary evaporation structures, is conducive to ensuring the consistency of the processing structures for the same sample, and the processing time is easier to control, reducing costs and operating difficulties.

[0008] In an optional embodiment, a plurality of fixing rings are provided on the outer peripheral surface of the rotary evaporation structure, the plurality of fixing rings are arranged at intervals along the axial direction of the rotary evaporation structure, and the mounting structure is arranged between adjacent fixing rings.

[0009] Beneficial effect: The relative position of the mounting structure and the rotary evaporation structure can be limited in the axial direction of the rotary evaporation structure to avoid displacement or shaking of the rotary evaporation structure.

[0010] In an optional embodiment, the rotary evaporator also includes: a frame, a plurality of the rotary evaporation structures are arranged in the frame, the frame is provided with a slide groove and a take-in and put-out port, the slide groove is located in the frame, and the take-in and put-out port is used to take and put the rotary evaporation structure; a sliding device, which is slidably matched with the slide groove, and at least one of the mounting structure and the drive motor is connected to the sliding device.

[0011] Beneficial effects: The relative position between the bracket and the access port can be changed, so that different rotary evaporation structures can correspond to the positions of the access port. The operator can take and place each rotary evaporation structure, which is convenient for placing the sample to be processed in the rotary evaporation structure and replacing the rotary evaporation structure.

[0012] In an optional embodiment, the sliding device includes: a sliding member, which cooperates with the sliding groove, and the sliding member has a locked state and a sliding state. When the sliding member is in the locked state, the relative position of the sliding member to the sliding groove is fixed, and when the sliding member is in the sliding state, the sliding member can slide in the sliding groove; a connecting rod, one end of the connecting rod is connected to the sliding member, and the other end of the connecting rod is connected to the driving motor.

[0013] Beneficial effects: When the sliding part is in a locked state, the relative position of the mounting structure and the frame bracket remains unchanged. During the sample taking-out process, only the rotary evaporation structure rotates, which is convenient for ensuring the rotational stability of the rotary evaporation structure and ensuring the processing efficiency and reliability of the sample. When the sliding part is in a sliding state, the relative position between the mounting structure and the access port can be adjusted to correspond different rotary evaporation structures to the access port, thereby realizing the access and placement of the rotary evaporation structure.

[0014] In an optional embodiment, the center of gravity of the mounting structure, the transmission device, the rotary evaporation structure and the drive motor as a whole is located below the sliding device.

[0015] Beneficial effect: During the sliding process of the sliding device, the rotary evaporation structure, the transmission device, the mounting structure and the driving motor are not prone to rollover, which is beneficial to ensure the stability of the rotary evaporation structure, the mounting structure and the driving motor, and reduce the probability of damage to the rotary evaporation structure.

[0016] In an optional embodiment, the rotary evaporator also includes: a frame, wherein the plurality of rotary evaporation structures are arranged in the frame, and a support edge is provided in the frame; a confluence device, which is rotatably arranged on the support edge and is located above the plurality of rotary evaporation structures, and the confluence device is provided with a plurality of insertion holes, and the second end pipe openings of the plurality of rotary evaporation structures are inserted into the plurality of insertion holes one by one, and a first sealing ring is provided between the outer circumferential surface of the rotary evaporation structure and the inner circumferential surface of the insertion hole.

[0017] Beneficial effects: It can guide the gas diffused from the rotary evaporation structure to avoid gas overflow and polluting the environment, and the first sealing ring is provided to ensure the sealing effect, further reducing the probability of gas overflow.

[0018] In an optional embodiment, the confluence device includes: a confluence seat, the confluence seat includes a support portion and a confluence portion, a plurality of the jacks are arranged on the confluence portion and pass through the confluence portion, the support portion is connected to the outer peripheral surface of the confluence portion, and the support portion is rotatably arranged on the support edge; a confluence cover, the cover is arranged on the confluence portion and stops at the upper surface of the support portion; wherein a second sealing ring is provided between the confluence cover and the confluence portion, and / or a second sealing ring is provided between the confluence cover and the support portion.

[0019] Beneficial effects: the processing difficulty of the confluence device is reduced, the connection between the rotary evaporation structure and the confluence device is more convenient, the sealing effect is good, and the probability of gas overflow is effectively reduced.

[0020] In an optional embodiment, the rotary evaporator further comprises: a condensing device, which is disposed on the frame and is connected to the confluence device.

[0021] Beneficial effect: By providing a condensing device, the steam flowing into the confluence device can be cooled and the steam can be cooled into liquid, which is convenient for collecting the liquid.

[0022] In an optional embodiment, the central axes of the plurality of rotary evaporation structures are arranged in parallel.

[0023] Beneficial effect: The space occupied by the multiple rotary evaporation structures from top to bottom is roughly the same, which can reduce the size of the rotary evaporator in the axial direction of the rotary evaporation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of a rotary evaporator according to an embodiment of the utility model;

[0026] Figure 2 It is a schematic diagram of the coordination of the rotary evaporation structure, the mounting structure, the driving motor, the transmission device and the sliding device of the rotary evaporator according to the embodiment of the utility model;

[0027] Figure 3 It is a structural schematic diagram of the rotary evaporation structure of the rotary evaporator of the embodiment of the utility model;

[0028] Figure 4 It is a structural schematic diagram of the sliding device and the driving motor of the rotary evaporator of the embodiment of the utility model;

[0029] Figure 5 It is a structural schematic diagram of the installation structure of the rotary evaporator according to an embodiment of the utility model;

[0030] Figure 6 This is a schematic structural diagram of a water bath device of a rotary evaporator according to an embodiment of the utility model;

[0031] Figure 7 It is a structural schematic diagram of a manifold of a rotary evaporator according to an embodiment of the utility model;

[0032] Figure 8 It is a structural schematic diagram of a confluence cover of a rotary evaporator according to an embodiment of the utility model;

[0033] Fig. 9 It is a structural schematic diagram of the frame of the rotary evaporator according to an embodiment of the utility model;

[0034] Fig.10 It is a schematic structural diagram of a condensing device of a rotary evaporator according to an embodiment of the utility model.

[0035] Description of reference numerals:

[0036] 1. Rotary evaporator;

[0037] 110. Installation structure;

[0038] 120, rotary evaporation structure; 121, first transmission gear; 122, fixed ring; 123, valve;

[0039] 130. Transmission device; 131. Driving motor; 132. Second transmission gear;

[0040] 140. Water bath device; 141. Telescopic bracket; 142. Water bath pot;

[0041] 150, frame; 151, slide; 152, support edge; 153, fixing piece; 154, air release valve; 155, control screen;

[0042] 160. Sliding device; 161. Sliding member; 162. Connecting rod;

[0043] 170, confluence device; 171, confluence seat; 172, confluence cover; 173, first sealing ring; 175, jack; 176, support portion; 177, confluence portion;

[0044] 180. Condensation device; 181. Water cooling channel; 182. Collection bottle; 183. Vacuum pump; 184. Vacuum interface. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0046] Combine the following Figures 1 to 10 , describing an embodiment of the utility model.

[0047] The utility model provides a rotary evaporator 1, which comprises a mounting structure 110, a driving motor 131, a transmission device, a water bath device 140 and a plurality of rotary evaporation structures 120.

[0048] Each rotary evaporation structure 120 is rotatably connected to the mounting structure 110. A valve 123 may be provided at the lower end of the rotary evaporation structure 120. The opening and closing of the lower end of the rotary evaporation structure 120 may be controlled by switching the valve 123. A plurality of rotary evaporation structures 120 are arranged at intervals.

[0049] The driving motor 131 is connected to the mounting structure 110, and the transmission device is connected to the plurality of rotary evaporation structures 120. The driving motor 131 is in transmission connection with the transmission device to drive the plurality of rotary evaporation structures 120 to rotate. The water bath device 140 is disposed corresponding to the first ends of the plurality of rotary evaporation structures 120, and the water bath device 140 is located below the plurality of rotary evaporation structures 120, and is used to heat the plurality of rotary evaporation structures 120.

[0050] For example, the number of rotary evaporation structures 120 can be 6, the mounting structure 110 can be constructed as a regular hexagonal prism, the 6 rotary evaporation structures 120 are arranged at the six corners of the mounting structure 110, and the driving motor 131 can be installed at the center of the mounting structure 110, that is, the central axis of the mounting structure 110 and the central axis of the driving motor 131 are arranged to coincide with each other.

[0051] In addition, the water bath device 140 may include a telescopic bracket 141 and a water bath pot 142. The telescopic bracket 141 may be a hydraulic telescopic structure. The water bath pot 142 is placed on the upper surface of the telescopic bracket 141. By changing the telescopic length of the telescopic bracket 141, the height of the water bath pot 142 is controlled, and the relative position between the water bath pot 142 and the rotary evaporation structure 120 is adjusted.

[0052] By providing a plurality of rotary evaporation structures 120 , the rotary evaporator 1 can process more samples at the same time, thereby improving the working efficiency of the rotary evaporator 1 and shortening the processing time of the samples.

[0053] The driving motor 131 can drive the multiple rotary evaporation structures 120 to rotate synchronously through the transmission device, which reduces the number of driving motors 131 and does not need to set up a separate driving structure for each rotary evaporation structure 120, thereby reducing costs. In addition, the rotation of the multiple rotary evaporation structures 120 is more correlated, and when processing the same sample, the processing time of the multiple rotary evaporation structures 120 is roughly the same, and the synchronization is higher.

[0054] In some embodiments, Figure 3 and Figure 4 As shown, the transmission device includes a plurality of first transmission gears 121 and second transmission gears 132 .

[0055] The plurality of first transmission gears 121 are arranged corresponding to the plurality of rotary evaporation structures 120, and a first transmission gear 121 is provided on the outer peripheral surface of each rotary evaporation structure 120. The second transmission gear 132 is transmission-connected to the motor shaft of the driving motor 131, and the plurality of rotary evaporation structures 120 are arranged at intervals along the circumference of the second transmission gear 132, and each first transmission gear 121 is meshed with the second transmission gear 132.

[0056] Specifically, the central axis of the second transmission gear 132 may be arranged to coincide with the central axis of the driving motor 131 , and the plurality of rotary evaporation structures 120 may also be arranged at intervals along the circumference of the driving motor 131 .

[0057] In this way, the rotational speeds of the multiple rotary evaporation structures 120 are the same or approximately the same, which can effectively ensure the synchronization of the multiple rotary evaporation structures 120. The evaporation effects and uniformity within the multiple rotary evaporation structures 120 are approximately the same, which is beneficial to ensuring the consistency of the processing structure for the same sample, and the processing time is easier to grasp, reducing costs and operating difficulties.

[0058] In some embodiments, Figure 3 and Figure 5 As shown, a plurality of fixing rings 122 are provided on the outer peripheral surface of the rotary evaporation structure 120, and the plurality of fixing rings 122 are arranged at intervals along the axial direction of the rotary evaporation structure 120, and the mounting structure 110 is arranged between adjacent fixing rings 122. By providing the fixing rings 122, the relative position of the mounting structure 110 and the rotary evaporation structure 120 can be limited in the axial direction of the rotary evaporation structure 120 to prevent the rotary evaporation structure 120 from displacement or shaking.

[0059] For example, the fixing ring 122 and the rotary evaporation structure 120 may be separate structures, and the fixing ring 122 may be detachable from the rotary evaporation structure 120. When assembling between the mounting structure 110 and the rotary evaporation structure 120, the mounting structure 110 is first sleeved on the rotary evaporation structure 120, and then the mounting structure 110 is connected to the rotary evaporation structure 120 to fix the relative position between the rotary evaporation structure 120 and the mounting structure 110 in the axial direction of the rotary evaporation structure 120;

[0060] Alternatively, the fixing ring 122 and the rotary evaporation structure 120 are an integral structure, and the fixing ring 122 can be elastically deformed, or the portion of the mounting structure 110 sleeved on the rotary evaporation structure 120 can be elastically deformed. During the assembly process between the mounting structure 110 and the rotary evaporation structure 120, the mounting structure 110 is sleeved on the rotary evaporation structure 120, and when the fixing ring 122 and the mounting structure 110 are in contact, the fixing ring 122 or the mounting structure 110 is elastically deformed, and when the fixing ring 122 and the mounting structure 110 are separated, the fixing ring 122 or the mounting structure 110 restores its own shape to fix the relative position between the rotary evaporation structure 120 and the mounting structure 110 in the axial direction of the rotary evaporation structure 120.

[0061] Among them, the number of fixing rings 122 can be 2, and the relative position between the rotary evaporation structure 120 and the mounting structure 110 is unique; the number of fixing rings 122 can be greater than 2, and the relative position between the rotary evaporation structure 120 and the mounting structure 110 can be adjusted.

[0062] In some embodiments, Figure 4 and Fig. 9 As shown, the rotary evaporator 1 further includes a frame 150 and a sliding device 160. A plurality of rotary evaporation structures 120 are arranged in the frame 150, and the frame 150 is provided with a slide groove 151 and a take-in and put-out port, the slide groove 151 is located in the frame 150, and the take-in and put-out port is used to take and put the rotary evaporation structure 120. The sliding device 160 is slidably matched with the slide groove 151, and at least one of the mounting structure 110 and the driving motor 131 is connected to the sliding device 160.

[0063] By making the sliding device 160 slide along the slide groove 151, the relative position between the mounting structure 110 and the access port can be changed, so that different rotary evaporation structures 120 can be matched with the positions of the access port. The operator can take and place each rotary evaporation structure 120, which is convenient for placing the sample to be processed in the rotary evaporation structure 120 and replacing the rotary evaporation structure 120.

[0064] For example, the slide groove 151 can be arc-shaped or circular, and the slide groove 151 extends along the mounting structure 110, and the central axis of the mounting structure 110 coincides with the center of the slide groove 151. In this way, when the sliding device 160 slides along the slide groove 151, the mounting structure 110 rotates around the center of the slide groove 151, and the displacement range of the mounting structure 110 is small, which reduces the volume of the rotary evaporator 1 and facilitates the correspondence between different rotary evaporation structures 120 and the positions of the loading and unloading ports.

[0065] In some embodiments, Figure 4 and Fig. 9 As shown, the sliding device 160 includes a sliding member 161 and a connecting rod 162. The sliding member 161 cooperates with the slide slot 151, and the sliding member 161 can switch between a locked state and a sliding state. When the sliding member 161 is in the locked state, the relative position with the slide slot 151 is fixed, and when the sliding member 161 is in the sliding state, it can slide in the slide slot 151. One end of the connecting rod 162 is connected to the sliding member 161, and the other end of the connecting rod 162 is connected to the driving motor 131.

[0066] In other words, when the sliding member 161 is in a locked state, the relative positions of the mounting structure 110 and the frame 150 remain unchanged, and during the sample removal process, only the rotary evaporation structure 120 rotates, thereby ensuring the rotation stability of the rotary evaporation structure 120 and ensuring the processing efficiency and reliability of the sample.

[0067] When the sliding member 161 is in a sliding state, the relative position between the mounting structure 110 and the access opening can be adjusted to match different rotary evaporation structures 120 with the access opening, thereby realizing the access of the rotary evaporation structures 120 .

[0068] For example, the sliding member 161 can be a bolt, and the sliding member 161 is threadedly matched with the sliding groove 151 in the locked state; or the sliding member 161 can also have a motor, and when the sliding member 161 is in the locked state, the motor can be in a locked state and not drive the sliding member 161 to move, and when the sliding member 161 is in the sliding state, the motor can drive the sliding member 161 to move.

[0069] In some embodiments, Figure 3 and Figure 4As shown, the connection between the driving motor 131 and the rotary evaporation structure 120 and the sliding device 160 are located on opposite sides of the mounting structure 110. That is, the first transmission gear 121 and the sliding device 160 are located on opposite sides of the mounting structure 110, the second transmission gear 132 and the sliding device 160 are located on opposite sides of the mounting structure 110, and the first transmission gear 121 and the second transmission gear 132 are located on the same side of the mounting structure 110.

[0070] In this way, interference between the connection between the drive motor 131 and the rotary evaporation structure 120 and the sliding device 160 can be avoided, thereby ensuring the transmission reliability between the drive motor 131 and the rotary evaporation structure 120, preventing collision with the sliding device 160 during transmission, and preventing collision with the connection between the drive motor 131 and the rotary evaporation structure 120 during sliding of the sliding device 160, thereby reducing the probability of damage.

[0071] In some embodiments, Figure 3 and Figure 4 As shown, the structure of the rotary evaporator 1 satisfies at least one of the following:

[0072] The sliding device 160 is located above the center of gravity of the rotary evaporation structure 120;

[0073] The slide device 160 is located above the center of gravity of the mounting structure 110;

[0074] The slide device 160 is located above the center of gravity of the drive motor 131 .

[0075] That is to say, the center of the rotary evaporation structure 120, the transmission device, the mounting structure 110 and the driving motor 131 as a whole is located above the sliding device 160. In this way, during the sliding process of the sliding device 160, the rotary evaporation structure 120, the mounting structure 110 and the driving motor 131 are not easy to slide, which is conducive to ensuring the stability of the rotary evaporation structure 120, the mounting structure 110 and the driving motor 131, and reducing the probability of the rotary evaporation structure 120 being turned over and damaged.

[0076] In some embodiments, Figure 1 , Figure 7-Figure 9 As shown, the rotary evaporator 1 further includes a frame 150 and a confluence device 170. A plurality of rotary evaporation structures 120 are arranged in the frame 150, and a support edge 152 is arranged in the frame 150. The confluence device 170 is rotatably arranged on the support edge 152, and the confluence device 170 is located above the plurality of rotary evaporation structures 120. The confluence device 170 is provided with a plurality of plug holes 175, and the second end pipe openings of the plurality of rotary evaporation structures 120 are correspondingly inserted into the plurality of plug holes 175 one by one, and a first sealing ring 173 is provided between the outer circumference of the rotary evaporation structure 120 and the inner circumference of the plug hole 175.

[0077] Specifically, Fig.10As shown, the rotary evaporator 1 also includes a condensing device 180, and the confluence device 170 is connected to the condensing device 180. The liquid in the rotary evaporation structure 120 is evaporated into steam, diffuses upward to the confluence device 170, and then moves to the condensing device 180, and is condensed into liquid in the condensing device 180.

[0078] A fixing part 153 is provided on the frame 150, and a condensing device 180 is inserted and connected with the fixing part 153. There may be multiple condensing devices 180, and a water cooling channel 181 may be provided in the condensing device 180. The water cooling channel 181 may be spirally arranged to extend the length of the water cooling channel 181 and increase the contact area and contact time between the water cooling channel 181 and the gas. The water inlet of the water cooling channel 181 is located at the lower end of the water cooling channel 181, and the water outlet of the water cooling channel 181 is located at the upper end of the water cooling channel 181.

[0079] The lower end of the condensing device 180 is connected to a collecting bottle 182 for collecting the condensed liquid in the condensing device 180. The condensing device 180 can be connected to a vacuum pump 183 via a vacuum interface 184. When the vacuum pump 183 is running, the condensing device 180 is evacuated, and the rotary evaporation structure 120 is placed in a "vacuum environment" to reduce the boiling point of the sample in the rotary evaporation structure 120.

[0080] Among them, when the driving motor 131 drives the rotary evaporation structure 120 to rotate, the rotary evaporation structure 120 can rotate relative to the socket 175; when the sliding device 160 slides along the slide groove 151, the mounting structure 110 drives multiple rotary evaporation structures 120 to move synchronously. At this time, the multiple rotary evaporation structures 120 drive the confluence device 170 to rotate relative to the support along 152.

[0081] By providing the confluence device 170, the gas diffused from the rotary evaporation structure 120 can be guided to avoid gas overflow and environmental pollution, and the first sealing ring 173 can ensure the sealing effect and further reduce the probability of gas overflow.

[0082] In some embodiments, Figure 7 and Figure 8 As shown, the busbar device 170 includes a busbar seat 171 and a busbar cover 172 .

[0083] The confluence seat 171 includes a support portion 176 and a confluence portion 177. A plurality of insertion holes 175 are provided on the confluence portion 177 and penetrate the confluence portion 177. The support portion 176 is connected to the outer circumference of the confluence portion 177. The confluence portion 177 is rotatably provided on the support edge 152. The confluence cover 172 is sleeved on the confluence portion 177 and stops at the upper surface of the support portion 176, wherein the upper surface of the confluence portion 177 is higher than the upper surface of the support portion 176.

[0084] By setting the confluence seat 171 and the confluence cover 172 separately, the processing difficulty of the confluence device 170 is reduced. The confluence cover 172 is connected to the condensing device 180, and the rotary evaporation structure 120 can be inserted into the socket 175 first, and then the confluence seat 171 and the confluence cover 172 are connected, so that the connection between the rotary evaporation structure 120 and the confluence device 170 is more convenient.

[0085] A second sealing ring is provided between the confluence cover 172 and the confluence portion 177 , or a second sealing ring is provided between the confluence cover 172 and the support portion 176 , or a second sealing ring is provided between the confluence cover 172 and the confluence portion 177 and a second sealing ring is provided between the confluence cover 172 and the support portion 176 .

[0086] By providing the second sealing ring, the sealing effect is further improved, and the probability of gas overflow is effectively reduced. The confluence cover 172 and the confluence seat 171 can be double-sealed, and the sealing performance is stronger.

[0087] In some embodiments, Figure 1 As shown, the central axes of the plurality of rotary evaporation structures 120 are arranged in parallel. With respect to setting an angle between the central axes of the plurality of rotary evaporation structures 120, the spaces occupied by the plurality of rotary evaporation structures 120 from top to bottom are substantially the same, and the size of the rotary evaporator 1 in the axial direction of the rotary evaporation structure 120 can be reduced, and the water bath device 140 needs to cover the plurality of rotary evaporation structures 120, and by reducing the space occupied by the lower ends of the plurality of rotary evaporation structures 120, the cross-sectional area of ​​the water bath device 140 is also reduced.

[0088] The following describes the working process of the rotary evaporator 1 in the embodiment of the utility model in conjunction with the accompanying drawings:

[0089] First, the frame 150 is evacuated by the vacuum pump 183 in the frame 150 to put the rotary evaporation structure 120 in a "vacuum state" to reduce the boiling point of the sample in the rotary evaporation structure 120;

[0090] Then, the length of the telescopic bracket 141 of the water bath device 140 is adjusted, and the distance between the water bath device 140 and the rotary evaporation structure 120 is adjusted to a preset value, and the rotary evaporation structure 120 is heated by the water bath device 140;

[0091] Afterwards, the driving motor 131 drives the rotary evaporation structure 120 to rotate, ensuring that the rotary evaporation structure 120 is evenly heated. The rotary evaporation structure 120 is heated to generate steam, which enters the confluence device 170 and then flows into the condensation device 180. The steam is cooled by the water cooling channel 181 in the condensation device 180, and the steam condenses into liquid, which drips into the collection bottle 182 connected to the condensation device 180.

[0092] Finally, after the sample processing in the rotary evaporation structure 120 is completed, the air release valve 154 on the frame 150 is opened to balance the pressure inside and outside the frame 150, drive the sliding device 160 to slide in the slide groove 151, and disassemble the rotary evaporation structure 120 through the access port.

[0093] For example, a control screen 155 is provided on the frame 150 , and the control screen 155 can control the lifting and lowering of the water bath device 140 , the operation of the drive motor 131 , the sliding of the sliding device 160 in the slide groove 151 , the vacuuming of the vacuum pump 183 , and the like.

[0094] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A rotary evaporator, characterized in that: include: A mounting structure (110); a plurality of rotary evaporation structures (120), each of the rotary evaporation structures (120) being rotatably connected to the mounting structure (110), and the plurality of rotary evaporation structures (120) being arranged at intervals; A driving motor (131) connected to the mounting structure; A transmission device connected to the plurality of rotary evaporation structures (120), wherein the drive motor is in transmission connection with the transmission device to drive the plurality of rotary evaporation structures (120) to rotate; The water bath device (140) is disposed corresponding to the first ends of the plurality of rotary evaporation structures (120) and is used to heat the plurality of rotary evaporation structures (120).

2. The rotary evaporator according to claim 1, characterized in that The transmission device comprises: a plurality of first transmission gears (121), the plurality of first transmission gears (121) being arranged corresponding to the plurality of rotary evaporation structures (120), and each of the first transmission gears (121) being connected to the outer peripheral surface of the corresponding rotary evaporation structure (120); The second transmission gear (132) is transmission-connected to the motor shaft of the driving motor (131), and the plurality of first transmission gears (121) are all meshed with the second transmission gear (132).

3. The rotary evaporator according to claim 2, characterized in that The outer peripheral surface of the rotary evaporation structure (120) is provided with a plurality of fixing rings (122), and the plurality of fixing rings (122) are arranged at intervals along the axial direction of the rotary evaporation structure (120), and the mounting structure (110) is arranged between adjacent fixing rings (122).

4. The rotary evaporator according to any one of claims 1 to 3, characterized in that Also includes: A frame (150), wherein a plurality of the rotary evaporation structures (120) are arranged in the frame (150), and the frame (150) is provided with a slide groove (151) and a take-in / take-out opening, wherein the slide groove (151) is located in the frame (150), and the take-in / take-out opening is used for taking in and putting in the rotary evaporation structures (120); A sliding device (160) is slidably matched with the sliding groove (151), and at least one of the mounting structure (110) and the driving motor (131) is connected to the sliding device (160).

5. The rotary evaporator according to claim 4, characterized in that The sliding device (160) comprises: A sliding member (161) cooperates with the slide groove (151), the sliding member (161) can be switched between a locked state and a sliding state, the relative position of the sliding member (161) and the slide groove (151) is fixed when the sliding member (161) is in the locked state, and the sliding member (161) can slide in the slide groove (151) when the sliding member (161) is in the sliding state; A connecting rod (162), one end of the connecting rod (162) is connected to the sliding member (161), and the other end of the connecting rod (162) is connected to the driving motor (131).

6. The rotary evaporator according to claim 4, characterized in that The center of gravity of the mounting structure (110), the transmission device, the rotary evaporation structure (120) and the drive motor (131) as a whole is located below the sliding device (160).

7. The rotary evaporator according to any one of claims 1 to 3, characterized in that Also includes: A frame (150), wherein the plurality of rotary evaporation structures (120) are arranged in the frame (150), and a support edge (152) is arranged in the frame (150); A confluence device (170), the confluence device (170) is rotatably arranged on the support edge (152) and is located above the plurality of rotary evaporation structures (120), the confluence device (170) is provided with a plurality of insertion holes (175), the second end pipe openings of the plurality of rotary evaporation structures (120) are inserted into the plurality of insertion holes (175) in a one-to-one correspondence, and a first sealing ring (173) is provided between the outer circumference of the rotary evaporation structure (120) and the inner circumference of the insertion hole (175).

8. The rotary evaporator according to claim 7, characterized in that The confluence device (170) comprises: A confluence seat (171), the confluence seat (171) comprising a support portion (176) and a confluence portion (177), a plurality of the insertion holes (175) being arranged on the confluence portion (177) and penetrating the confluence portion (177), the support portion (176) being connected to an outer peripheral surface of the confluence portion (177), and the support portion (176) being rotatably arranged on the support edge (152); A confluence cover (172) is disposed on the confluence portion (177) and abuts against the upper surface of the support portion (176); Wherein, a second sealing ring is provided between the confluence cover (172) and the confluence portion (177), and / or a second sealing ring is provided between the confluence cover (172) and the support portion (176).

9. The rotary evaporator according to claim 7, characterized in that Also includes: A condensing device (180) is disposed on the frame (150) and is in communication with the confluence device (170).

10. The rotary evaporator according to any one of claims 1 to 3, characterized in that The central axes of the plurality of rotary evaporation structures (120) are arranged in parallel.

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