Rotary evaporator capable of reducing heat loss

Abstract

The utility model provides a rotary evaporator capable of reducing heat loss, which relates to the technical field of rotary evaporators and comprises a bottom plate and a water bath kettle, a mounting rack is fixedly mounted at the top of the bottom plate, and a rotating mechanism is obliquely arranged on one side of the mounting rack. According to the electric cooker, the support, the sliding groove, the second motor, the lead screw, the connecting block, the transparent heat preservation pot cover and other structures are arranged, the second motor is started, the second motor can drive the lead screw to rotate when working, and the lead screw can drive the connecting block to slide downwards in the sliding groove in the rotating process; the connecting block can drive the transparent heat preservation pot cover to move downwards together in the downward sliding process, the transparent heat preservation pot cover and the water bath pot can be combined together after moving by a certain distance, heat preservation can be rapidly conducted on the water bath pot through the structure, then the phenomenon that heat is prone to being lost in the heating process is effectively avoided, the evaporation speed of a solvent is increased, and the service life of the water bath pot is prolonged. And the experiment time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary evaporators, in particular to a rotary evaporator capable of reducing heat loss. Background Art

[0002] The rotary evaporator is a common concentration and extraction equipment, mainly used for continuous distillation of large amounts of volatile solvents under reduced pressure. The working principle of the rotary evaporator is to put the evaporating bottle in a negative pressure state through a vacuum pump, control the evaporating bottle to rotate at a constant speed at the most suitable speed to increase the evaporation area, and place the evaporating bottle in a water bath for constant temperature heating. The solution in the evaporating bottle is heated and diffused under negative pressure. The solution in the evaporating bottle evaporates and turns into steam, which is then quickly condensed into the condenser through the transmission of the air guide tube. When the solution in the evaporating bottle evaporates to a certain concentration, the preparation is completed and the equipment is shut down. Publication No. CN218686433U discloses a rotary evaporator, including a base, a support arm and a water bath arranged on the upper side of the base, a rotating mechanism is inclined on the support arm, the middle part of the rotating mechanism is connected to the motor, and the upper and lower ends thereof are respectively connected to the condenser and the evaporation flask, the lower end of the condenser is connected to the collecting tank, the lower end of the evaporation flask is arranged in the water bath, the water bath is provided with a temperature sensor, water and a heating pipe for heating the water, the water bath is also provided with a water pipe, the water pipe is provided with a control valve, the control valve, the heating pipe, the temperature sensor and the motor are all connected to the control unit. The utility model arranges a water pipe in the water bath, and when the water in the water bath needs to be cooled, the control valve on the water pipe controls the introduction of chilled water, thereby realizing flexible temperature adjustment, meeting the process requirements, and having a good cooling effect; the repeatability is good, and for products of the same process, the consistency of each batch of products can be ensured. However, the evaporator is not provided with a heat-insulating structure, which causes the heat to be easily lost during the heating process. The heat loss will slow down the evaporation rate of the solvent and prolong the experimental time. The evaporator still has shortcomings and needs to be improved. Utility Model Content

[0003] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0004] The utility model adopts the following technical scheme: a rotary evaporator capable of reducing heat loss comprises a bottom plate and a water bath, a mounting frame is fixedly mounted on the top of the bottom plate, a rotating mechanism is obliquely arranged on one side of the mounting frame, a motor 1 is fixedly mounted on the middle part of the rotating mechanism, a condenser is fixedly mounted on the upper end of the rotating mechanism, an evaporating flask is mounted on the lower end of the rotating mechanism, a collecting flask is mounted on the bottom end of the condenser, a bracket is fixedly mounted on the outer wall of the water bath, a sliding groove is penetrated through one side of the bracket, a motor 2 is fixedly mounted on the top of the bracket, a screw rod is fixedly mounted on the output end of the motor 2, a connecting block is threadedly connected to the outer wall of the screw rod, and a transparent heat-insulating pot cover is fixedly mounted on one side of the connecting block.

[0005] Preferably, the condenser is threadedly connected to the collecting flask, and the rotating mechanism is threadedly connected to the evaporating flask. Here, the fixing effect of the collecting flask and the evaporating flask is improved by the threaded connection.

[0006] Preferably, the bottom of the base plate is symmetrically fixed with legs, and the bottom of the legs is fixed with fixing blocks. Here, the supporting effect of the base plate is improved by the coordinated use of the legs and the fixing blocks.

[0007] Preferably, the connection block is slidably connected to the sliding groove. Here, the limiting effect of the connection block is improved by the sliding connection.

[0008] Preferably, the water bath is located on the top of the bottom plate, and the water bath is fixedly connected to the bottom plate. Here, the use effect of the water bath is improved by the fixed connection.

[0009] Preferably, a reserved hole is formed through the top of the transparent heat preservation pot cover, a rotating shaft is rotatably connected inside the reserved hole, a support rod is fixedly installed on the outer wall of the bottom end of the rotating shaft, a wiping strip is fixedly installed on the side of the support rod away from the rotating shaft, and a knob is fixedly installed on the top of the rotating shaft. Here, by turning the knob, the rotating shaft is driven to rotate inside the reserved hole, and the rotating shaft will drive the support rod and the wiping strip to rotate together during the rotation process. The wiping strip will wipe the water mist on the inner wall of the transparent heat preservation pot cover during the rotation process, thereby making it convenient for the user to observe the situation in the water bath pot.

[0010] Preferably, the outer wall of the knob is evenly provided with anti-skid grooves, and the wiping strip is rotatably connected to the transparent heat preservation pot cover. Here, the anti-skid grooves improve the anti-skid effect when turning the knob, and the rotatable connection improves the use effect of the wiping strip.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, a bracket, a sliding groove, a second motor, a screw rod, a connecting block and a transparent heat-insulating pot cover are provided. By starting the second motor, the second motor will drive the screw rod to rotate when working. During the rotation of the screw rod, the connecting block will slide downward inside the sliding groove. During the downward sliding of the connecting block, the transparent heat-insulating pot cover will be driven to move downward together. After moving a certain distance, the transparent heat-insulating pot cover will be combined with the water bath. This structure can quickly keep the water bath warm, thereby effectively avoiding the easy loss of heat during the heating process, increasing the evaporation rate of the solvent, and reducing the experimental time.

[0013] 2. In the utility model, a reserved hole, a rotating shaft, a support rod, a wiping strip and a knob are provided. By turning the knob, the rotating shaft is driven to rotate inside the reserved hole. During the rotation of the rotating shaft, the support rod and the wiping strip are driven to rotate together. During the rotation of the wiping strip, the water mist on the inner wall of the transparent heat preservation pot cover is wiped off, thereby making it convenient for the user to observe the situation inside the water bath pot. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a schematic diagram of the overall structure of a rotary evaporator capable of reducing heat loss;

[0015] Figure 2 A side view of a rotary evaporator capable of reducing heat loss is provided for the utility model;

[0016] Figure 3 The utility model provides a schematic diagram of the explosion structure of a rotary evaporator capable of reducing heat loss;

[0017] Figure 4 The utility model proposes a rotary evaporator that can reduce heat loss Figure 3 Enlarged view of point A in the middle.

[0018] Legend:

[0019] 1. Bottom plate; 2. Water bath; 3. Mounting frame; 4. Rotating mechanism; 5. Motor 1; 6. Condenser; 7. Collecting bottle; 8. Evaporating bottle; 9. Bracket; 10. Sliding groove; 11. Motor 2; 12. Screw rod; 13. Connecting block; 14. Transparent insulation pot cover; 15. Reserved hole; 16. Rotating shaft; 17. Support rod; 18. Wiping strip; 19. Knob; 20. Anti-slip groove; 21. Leg; 22. Fixing block. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] Embodiment 1

[0023] See also Figure 1-3 The utility model provides a technical solution: a rotary evaporator capable of reducing heat loss, comprising a bottom plate 1 and a water bath 2, a mounting frame 3 is fixedly mounted on the top of the bottom plate 1, a rotating mechanism 4 is obliquely arranged on one side of the mounting frame 3, a motor 1 5 is fixedly mounted on the middle part of the rotating mechanism 4, a condenser 6 is fixedly mounted on the upper end of the rotating mechanism 4, an evaporating bottle 8 is mounted on the lower end of the rotating mechanism 4, a collecting bottle 7 is mounted on the bottom end of the condenser 6, a bracket 9 is fixedly mounted on the outer wall of the water bath 2, a sliding groove 10 is penetrated through one side of the bracket 9, a motor 2 11 is fixedly mounted on the top of the bracket 9, a screw rod 12 is fixedly mounted on the output end of the motor 2 11, a connecting block 13 is threadedly connected to the outer wall of the screw rod 12, and a transparent heat-insulating pot cover 14 is fixedly mounted on one side of the connecting block 13. By setting up structures such as the bracket 9, the sliding groove 10, the second motor 11, the screw rod 12, the connecting block 13 and the transparent heat-insulating pot cover 14, by starting the second motor 11, the second motor 11 will drive the screw rod 12 to rotate when it works, and the screw rod 12 will drive the connecting block 13 to slide downward inside the sliding groove 10 during the rotation process, and the connecting block 13 will drive the transparent heat-insulating pot cover 14 to move downward during the downward sliding process. After moving a certain distance, the transparent heat-insulating pot cover 14 will be combined with the water bath pot 2. This structure can quickly keep the water bath pot 2 warm, thereby effectively avoiding the easy loss of heat during the heating process, increasing the evaporation rate of the solvent, and reducing the experimental time.

[0024] See also Figure 1-3 The condenser 6 is threadedly connected to the collecting bottle 7, and the rotating mechanism 4 is threadedly connected to the evaporating bottle 8. The fixing effect of the collecting bottle 7 and the evaporating bottle 8 is improved by the threaded connection. The bottom of the bottom plate 1 is symmetrically fixed with legs 21, and the bottom of the legs 21 is fixedly installed with fixing blocks 22. The supporting effect of the bottom plate 1 is improved by the coordinated use of the legs 21 and the fixing blocks 22. The connecting block 13 is slidably connected to the sliding groove 10, and the limiting effect of the connecting block 13 is improved by the sliding connection. The water bath 2 is located on the top of the bottom plate 1, and the water bath 2 is fixedly connected to the bottom plate 1, and the use effect of the water bath 2 is improved by the fixed connection.

[0025] Embodiment 2

[0026] See also Figure 3-4The top of the transparent heat-insulating pot cover 14 is provided with a reserved hole 15, and the reserved hole 15 is rotatably connected with a rotating shaft 16 inside. A support rod 17 is fixedly installed on the outer wall of the bottom end of the rotating shaft 16, and a wiping strip 18 is fixedly installed on the side of the support rod 17 away from the rotating shaft 16. A knob 19 is fixedly installed on the top of the rotating shaft 16. By turning the knob 19, the rotating shaft 16 is driven to rotate inside the reserved hole 15. During the rotation process of the rotating shaft 16, the support rod 17 and the wiping strip 18 will be driven to rotate together. During the rotation process, the wiping strip 18 will wipe the water mist on the inner wall of the transparent heat-insulating pot cover 14, thereby making it convenient for the user to observe the situation in the water bath pot 2. The outer wall of the knob 19 is evenly provided with anti-skid grooves 20. The anti-skid grooves 20 improve the anti-skid effect when the knob 19 is turned. The wiping strip 18 is rotatably connected to the transparent heat-insulating pot cover 14, and the use effect of the wiping strip 18 is improved through the rotating connection.

[0027] Working principle: when in use, the motor 11 can be started. When the motor 11 is working, it will drive the screw rod 12 to rotate. During the rotation process, the screw rod 12 will drive the connecting block 13 to slide downward inside the sliding groove 10. During the downward sliding process, the connecting block 13 will drive the transparent heat preservation pot cover 14 to move downward together. After moving a certain distance, the transparent heat preservation pot cover 14 will be combined with the water bath pot 2, thereby improving the heat preservation effect of the water bath pot 2 and effectively avoiding the easy loss of heat during the heating process. When the user needs to observe the internal situation of the water bath pot 2, he can observe through the transparent heat preservation pot cover 14. When there is water mist on the inner wall of the transparent heat preservation pot cover 14, the knob 19 can be turned to drive the rotating shaft 16 to rotate inside the reserved hole 15. During the rotation process, the rotating shaft 16 will drive the support rod 17 and the wiping strip 18 to rotate together. During the rotation process, the wiping strip 18 will wipe the water mist on the inner wall of the transparent heat preservation pot cover 14, thereby making it convenient for the user to observe the situation inside the water bath pot 2.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A rotary evaporator capable of reducing heat loss, comprising a bottom plate (1) and a water bath (2), characterized in that: A mounting frame (3) is fixedly mounted on the top of the bottom plate (1), a rotating mechanism (4) is obliquely arranged on one side of the mounting frame (3), a motor 1 (5) is fixedly mounted in the middle of the rotating mechanism (4), a condenser (6) is fixedly mounted on the upper end of the rotating mechanism (4), an evaporating flask (8) is mounted on the lower end of the rotating mechanism (4), a collecting flask (7) is mounted on the bottom end of the condenser (6), a bracket (9) is fixedly mounted on the outer wall of the water bath pot (2), a sliding groove (10) is penetrated through one side of the bracket (9), a motor 2 (11) is fixedly mounted on the top of the bracket (9), a screw rod (12) is fixedly mounted on the output end of the motor 2 (11), a connecting block (13) is threadedly connected to the outer wall of the screw rod (12), and a transparent heat-insulating pot cover (14) is fixedly mounted on one side of the connecting block (13).

2. The rotary evaporator capable of reducing heat loss according to claim 1, characterized in that: The condenser (6) and the collecting bottle (7) are threadedly connected, and the rotating mechanism (4) and the evaporating bottle (8) are threadedly connected.

3. The rotary evaporator capable of reducing heat loss according to claim 1, characterized in that: The bottom of the base plate (1) is symmetrically fixedly mounted with supporting legs (21), and the bottom of the supporting legs (21) is fixedly mounted with fixing blocks (22).

4. The rotary evaporator capable of reducing heat loss according to claim 1, characterized in that: The connecting block (13) is slidably connected to the sliding groove (10).

5. The rotary evaporator capable of reducing heat loss according to claim 1, characterized in that: The water bath (2) is located on the top of the bottom plate (1), and the water bath (2) and the bottom plate (1) are fixedly connected.

6. The rotary evaporator capable of reducing heat loss according to claim 1, characterized in that: A reserved hole (15) is formed through the top of the transparent heat-insulating pot cover (14), a rotating shaft (16) is rotatably connected inside the reserved hole (15), a support rod (17) is fixedly mounted on the outer wall of the bottom end of the rotating shaft (16), a wiping strip (18) is fixedly mounted on the side of the support rod (17) away from the rotating shaft (16), and a knob (19) is fixedly mounted on the top end of the rotating shaft (16).

7. The rotary evaporator capable of reducing heat loss according to claim 6, characterized in that: The outer wall of the knob (19) is evenly provided with anti-slip grooves (20), and the wiping strip (18) is rotatably connected to the transparent heat-insulating pot cover (14).

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