Water-saving condensing-agent-free rotary evaporator

Abstract

The utility model relates to the technical field of evaporation equipment, in particular to a water-saving condensing-agent-free rotary evaporator which comprises a bottom plate, placing grooves are formed in the two sides of the interior of the bottom plate, hiding mechanisms are arranged in the two placing grooves, an installation box is fixedly arranged at the top end of a top plate, a lifting mechanism is arranged in the installation box, and the lifting mechanism is arranged in the installation box. According to the lifting device, the threaded rod is separated from the groove in the lower portion through rotation of the rotary knob, the movable block can move upwards under the action of the first spring, then the second handle is driven to pop up, the rotary knob is rotated again, the threaded rod is separated from the groove in the lower portion through rotation of the rotary knob, and the second handle is driven to pop up through rotation of the rotary knob. When the device needs to be carried, due to the fact that most articles of the device are made of glass and are directly carried, damage and economic loss are possibly caused in the process, and when the device is not used, the second handle can also save space.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporation equipment, in particular to a water-saving condensate-free rotary evaporator. Background Art

[0002] The rotary evaporator is an extraction experimental equipment that performs vacuum distillation and concentration on materials. It is widely used in experiments such as large-scale concentration, drying, extraction and recovery of samples, especially for rapid distillation of large amounts of solvents. Existing rotary evaporators are usually composed of components such as a vacuum pump, a heating device, a condensing device, and a rotating device. The principle of the rotary evaporator is mainly to control the flask at the most suitable speed through electronic equipment, so that the flask rotates at a constant speed to form a thin film of the solvent, increase the evaporation area, and put the evaporation flask in a negative pressure state through a vacuum pump. While the evaporation flask rotates, it is placed in a water bath or oil bath for constant temperature heating. The heating temperature can be close to the boiling point of the solvent, so that the solution in the bottle is heated and diffused under negative pressure to evaporate, thereby achieving rapid evaporation of the solvent.

[0003] In the Chinese utility model patent application disclosure CN209735009U, although it solves the problem that most of the rotary evaporators used in the prior art rely on tap water to cool the evaporated gaseous substances to obtain separated fractions, the cooling water in the use of the rotary evaporator is often directly discharged, resulting in a large amount of water resource waste; there is also the problem of limited use in water-deficient environments. There are also a few rotary evaporators that use dry ice as a refrigerant or add additional refrigeration equipment to condense gaseous substances, but there are still problems of refrigerant material waste or the use of additional refrigerants, but they cannot be adjusted and fixed according to the size of the volumetric flask, and are inconvenient to carry. Therefore, a new utility model is needed to solve this problem. Utility Model Content

[0004] The utility model aims to provide a water-saving condensate-free rotary evaporator to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A water-saving condensate-free rotary evaporator comprises a base plate, both sides of the base plate are provided with placement grooves, the two placement grooves are provided with hidden mechanisms, a mounting box is fixedly provided at the top of the base plate, a lifting mechanism is provided inside the mounting box, a mounting plate is provided on one side of the lifting mechanism, one end of the two mounting plates is provided with a fixing ring through a rotating shaft, one end of the two fixing rings is provided with a fixing mechanism, a heating component is provided on the top of the base plate on one side of the mounting box, and a rotary evaporator is provided on the mounting box and the top of the heating component.

[0007] Furthermore, the hidden mechanism includes a limit rod, a limit block, a movable block, a groove, a first spring, a first handle, a threaded rod, and a knob. A limit rod is provided on one side of the two placement inner parts, and a limit block is installed on the outer side of one end of the two limit rods through a mounting hole. A movable block is fixedly provided at one end of the two limit blocks, and a groove is provided on one side of the two movable blocks. A first spring is provided at the bottom end of the placement groove, and the top of the first spring is connected to the movable block. A first handle is provided on the top of the movable block, and threaded rods are provided on both sides of the bottom plate through threaded holes, and knobs are provided at one end of the two threaded rods.

[0008] Furthermore, the lifting mechanism includes a screw rod, a movable plate, a second limiting rod, a first gear, a second gear, and a transmission rod. A screw rod is arranged on one side of the top end of the installation box through a rotating shaft, and movable plates are arranged on the outer sides of both ends of the screw rod through threaded holes. A second limiting rod is arranged on one side of the screw rod inside the installation box, and the second limiting rod is connected to the two movable plates through the installation hole. A first gear is arranged at the bottom end of the screw rod, and a transmission rod is arranged on one side of the installation box through a rotating shaft, and a second gear meshing with the first gear is arranged at one end of the transmission rod.

[0009] Furthermore, the fixing mechanism includes a fixing box, a movable rod, a second spring, and a slider. The two mounting plates are provided with fixing boxes at both ends of one side, the two fixing boxes are provided with movable rods on one side, the second spring is provided on the outside of the two movable rods, the two fixing rings are provided with sliders at the end away from the rotating shaft, and one end of the two sliders is connected to the movable rod through the mounting hole.

[0010] Furthermore, a connecting rod is fixedly arranged between one ends of the two fixing rings.

[0011] Furthermore, a second handle is provided at one end of the transmission rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. This water-saving condensate-free rotary evaporator, by pulling the connecting rod, drives the two fixing rings to move away from the mounting plate, so that the fixing ring drives the slider to move to one side and squeezes the second spring to increase the space between the fixing ring and the mounting plate, and then the container bottle is placed between the fixing ring and the mounting plate. After that, the connecting rod is loosened, and the slider will move to one side of the mounting plate under the action of the second spring, so that the space between the fixing ring and the mounting plate becomes smaller, thereby completing the fixation. When it is necessary to adjust the height, it is only necessary to rotate the second handle to drive the second gear to rotate, so that the second gear drives the first gear, and then drives the screw rod to rotate, thereby driving the two mounting plates to rise or fall. The advantage of this is that it can be fixed according to the size of the volumetric flask, and the height can also be adjusted according to needs, instead of the vast majority of devices in the prior art that require staff to manually suspend the reception of distillate, to prevent the distillate from splashing onto the outside of the volumetric flask during the receiving process and causing an impact.

[0014] 2. This is a water-saving condensate-free rotary evaporator. By turning the knob, the threaded rod is disengaged from the groove below. The movable block moves upward under the action of the first spring, thereby driving the second handle to pop out. The knob is turned again to make one end of the threaded rod fit into the groove below to complete the fixation. When the device needs to be moved, since most of the items in the device are made of glass, direct transportation may cause damage during the process, resulting in economic losses. When not in use, the second handle can also save space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 3 For this utility model Figure 1 The enlarged schematic diagram of point A in the middle;

[0018] Figure 4 For this utility model Figure 2 The enlarged schematic diagram of point B in the middle;

[0019] Figure 5 For this utility model Figure 2 The enlarged schematic diagram of the center C;

[0020] Figure 6 This is a schematic diagram of the connection structure between the fixing ring and the mounting plate of the utility model.

[0021] In the figure: 1. bottom plate; 2. placement groove; 3. installation box; 4. installation plate; 5. fixing ring; 6. heating component; 7. rotary evaporator; 8. first limit rod; 9. limit block; 10. movable block; 11. groove; 12. first spring; 13. first handle; 14. threaded rod; 15. knob; 16. screw rod; 17. movable plate; 18. second limit rod; 19. first gear; 20. second gear; 21. fixing box; 22. movable rod; 23. second spring; 24. slider; 25. connecting rod; 26. second handle; 27. transmission rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 6 As shown, a technical solution provided by the utility model:

[0024] A water-saving condensate-free rotary evaporator comprises a base plate 1, placement grooves 2 are provided on both sides of the base plate 1, hidden mechanisms are provided inside the two placement grooves 2, a mounting box 3 is fixedly provided on the top of the base plate 1, a lifting mechanism is provided inside the mounting box 3, a mounting plate 4 is provided on one side of the lifting mechanism, a fixing ring 5 is provided on one end of the two mounting plates 4 through a rotating shaft, a fixing mechanism is provided on one end of the two fixing rings 5, a heating component 6 is provided on one side of the mounting box 3 at the top of the base plate 1, and a rotary evaporator 7 is provided on the top of the mounting box 3 and the heating component 6.

[0025] Preferably, the hidden mechanism includes a first limit rod 8, a limit block 9, a movable block 10, a groove 11, a first spring 12, a first handle 13, a threaded rod 14, and a knob 15. A first limit rod 8 is provided on one side of the two placement inner parts, and a limit block 9 is installed on the outer side of one end of the two first limit rods 8 through a mounting hole. A movable block 10 is fixedly provided at one end of the two limit blocks 9, and a groove 11 is provided on one side of the two movable blocks 10. A first spring 12 is provided at the bottom end of the placement groove 2, and the top of the first spring 12 is connected to the movable block 10. A first handle 13 is provided on the top of the movable block 10, and threaded rods 14 are provided on both sides of the bottom plate 1 through threaded holes, and knobs 15 are provided at one end of the two threaded rods 14. Through the use of the hidden mechanism, the device can be conveniently carried and space can be saved when not in use.

[0026] Preferably, the lifting mechanism includes a screw rod 16, a movable plate 17, a second limiting rod 18, a first gear 19, a second gear 20, and a transmission rod 27. The screw rod 16 is arranged on one side of the top of the installation box 3 through a rotating shaft, and movable plates 17 are arranged on the outer sides of both ends of the screw rod 16 through threaded holes. A second limiting rod 18 is arranged on one side of the screw rod 16 inside the installation box 3, and the second limiting rod 18 is connected to the two movable plates 17 through the mounting hole. A first gear 19 is arranged at the bottom end of the screw rod 16, and a transmission rod 27 is arranged on one side of the installation box 3 through a rotating shaft, and a second gear 20 meshing with the first gear 19 is arranged at one end of the transmission rod 27; the height requirement of the volumetric bottle can be adjusted as needed.

[0027] Preferably, the fixing mechanism includes a fixing box 21, a movable rod 22, a second spring 23, and a slider 24. The two mounting plates 4 are provided with fixing boxes 21 at both ends of one side, the two fixing boxes 21 are provided with movable rods 22 on one side, the second spring 23 is provided on the outside of the two movable rods 22, and the two fixing rings 5 ​​are provided with sliders 24 at the end away from the rotating shaft, and one end of the two sliders 24 is connected to the movable rod 22 through the mounting hole; it can be fixed according to the size of the volumetric flask.

[0028] Preferably, a connecting rod 25 is fixedly provided between one ends of the two fixing rings 5 ​​; the use of the connecting rod 25 makes it more convenient to pull the fixing rings 5 ​​.

[0029] Preferably, a second handle 26 is provided at one end of the transmission rod 27, which makes it easier to rotate the transmission rod 27.

[0030] When the water-saving condensate-free rotary evaporator of the present embodiment is used, when adjusting and fixing according to the size of the container bottle, by pulling the connecting rod 25, the two fixing rings 5 ​​are driven to move away from the mounting plate 4, so that the fixing ring 5 drives the slider 24 to move to one side and squeezes the second spring 23 to increase the space between the fixing ring 5 and the mounting plate 4, and then the container bottle is placed between the fixing ring 5 and the mounting plate 4, and then the connecting rod 25 is loosened, the slider 24 will move to the mounting plate 4 under the action of the second spring 23, so that the space between the fixing ring 5 and the mounting plate 4 becomes smaller, thereby completing the fixation. When it is necessary to adjust the height, it is only necessary to rotate the second handle 26 to drive the second gear 20 to rotate, so that the second gear 20 drives the first gear 19, and then drives the screw rod 16 to rotate, thereby driving the two mounting plates 4 to rise or fall. The advantage of this is that it can be fixed according to the size of the volumetric bottle, and the height can also be adjusted according to the needs, replacing the vast majority of devices in the prior art that require the staff to manually suspend and receive the distillate, preventing the distillate from splashing on the outside of the volumetric bottle during the receiving process and causing an impact.

[0031] When it is necessary to move the device, the knob 15 is turned to disengage the threaded rod 14 from the groove 11 below, and the movable block 10 will move upward under the action of the first spring 12, thereby driving the second handle 26 to pop out, and the knob 15 is turned again to make one end of the threaded rod 14 fit into the groove 11 below to complete the fixation. The advantage of this is that when it is necessary to move the device, since most of the items in the device are made of glass, direct transportation may cause damage during the process, resulting in economic losses. When not in use, the second handle 26 can also save space.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A water-saving condensate-free rotary evaporator, comprising a bottom plate (1), characterized in that: The bottom plate (1) has placement grooves (2) on both sides thereof, and the two placement grooves (2) are provided with hidden mechanisms inside. A mounting box (3) is fixedly provided at the top of the bottom plate (1), and a lifting mechanism is provided inside the mounting box (3). A mounting plate (4) is provided on one side of the lifting mechanism. A fixing ring (5) is provided at one end of each of the two mounting plates (4) through a rotating shaft, and a fixing mechanism is provided at one end of each of the two fixing rings (5). A heating component (6) is provided at the top of the bottom plate (1) on one side of the mounting box (3), and a rotary evaporator (7) is provided on the top of the mounting box (3) and the heating component (6); The concealing mechanism comprises a first limiting rod (8), a limiting block (9), a movable block (10), a groove (11), a first spring (12), a first handle (13), a threaded rod (14), and a knob (15); the first limiting rod (8) is arranged on one side of the two placements; the limiting blocks (9) are installed on the outer sides of one end of the two first limiting rods (8) through mounting holes; the movable blocks (10) are fixedly arranged on one end of the two limiting blocks (9); the groove (11) is opened on one side of the two movable blocks (10); the first spring (12) is arranged at the bottom end of the placement groove (2); the top end of the first spring (12) is connected to the movable block (10); the top end of the movable block (10) is arranged with a first handle (13); the threaded rods (14) are arranged on both sides of the bottom plate (1) through threaded holes; and the knobs (15) are arranged on one end of the two threaded rods (14); The lifting mechanism comprises a screw rod (16), a movable plate (17), a second limiting rod (18), a first gear (19), a second gear (20), and a transmission rod (27). The screw rod (16) is arranged on one side of the top end of the installation box (3) via a rotating shaft. The movable plates (17) are arranged on the outer sides of both ends of the screw rod (16) via threaded holes. The second limiting rod (18) is arranged on one side of the screw rod (16) inside the installation box (3). The second limiting rod (18) is connected to the two movable plates (17) via the mounting holes. The first gear (19) is arranged on the bottom end of the screw rod (16). The transmission rod (27) is arranged on one side of the installation box (3) via a rotating shaft. The second gear (20) meshing with the first gear (19) is arranged on one end of the transmission rod (27).

2. A water-saving condensate-free rotary evaporator according to claim 1, characterized in that: The fixing mechanism comprises a fixing box (21), a movable rod (22), a second spring (23), and a slider (24); the fixing boxes (21) are arranged at both ends of one side of the two mounting plates (4); the movable rod (22) is arranged on one side of the two fixing boxes (21); the second spring (23) is arranged on the outside of the two movable rods (22); the slider (24) is arranged at the end of the two fixing rings (5) away from the rotating shaft; one end of the two sliders (24) is connected to the movable rod (22) through the mounting hole.

3. A water-saving condensate-free rotary evaporator according to claim 1, characterized in that: A connecting rod (25) is fixedly arranged between one ends of the two fixing rings (5).

4. A water-saving condensate-free rotary evaporator according to claim 3, characterized in that: A second handle (26) is provided at one end of the transmission rod (27).

Images