Adjustable rotary evaporator

Abstract

The utility model relates to the technical field of evaporators, particularly discloses an adjustable rotary evaporator, and aims to provide multifunctional evaporation equipment to meet different experiment requirements. The main components comprise an evaporation component, a supporting component and a water bath kettle. The supporting component comprises a workbench, a first adjusting part and a second adjusting part, and lifting and rotating of the evaporation component can be achieved through the components. The first adjusting part is provided with a sleeve and a rack structure and is matched with the adjusting piece and the adjusting gear to achieve lifting of the evaporation component. The second adjusting part comprises a connecting part and an adjusting part which are in transmission connection through the opening, and rotation of the evaporation component is achieved. In addition, by means of the design of limiting teeth, a transmission cavity and the like, the stability and reliability of the equipment are improved. The overall design enables operation to be convenient, different experiment requirements can be flexibly met, and the experiment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporator devices, in particular to an adjustable rotary evaporator. Background Art

[0002] A rotary evaporator is a device used for evaporating liquids and is commonly used in fields such as chemical industry, pharmaceuticals, and laboratories. It makes the liquid evenly distributed on the surface by rotating a cylinder or a disc, thereby increasing the surface area and accelerating the evaporation process. This device is often used for concentrating solutions or extracts, as well as separating components in mixtures.

[0003] An adjustable rotary evaporator is a rotary evaporator that can adjust parameters to meet different experimental requirements. Generally, an adjustable rotary evaporator has devices for adjusting parameters such as height, angle, rotation speed, heating temperature, and vacuum degree, enabling users to make adjustments according to experimental requirements. This device is usually used in experiments that require precise control of the evaporation process.

[0004] In the patent "A Rotary Evaporator with Adjustable Height" (publication number CN107930172A, hereinafter referred to as the prior art 1), a device for adjusting the height of the evaporator is disclosed; in the prior art 1, a height adjustment mechanism is provided to adjust the height between the rotary flask and the water bath. It drives the evaporation component to displace through a lead screw mechanism; in the prior art 1, a motor is used for driving, and the driving force is relatively large, while the adjustment in the evaporator should be relatively precise and minute. The adjustment accuracy of this adjustment method is insufficient; moreover, this adjustment mechanism only provides an adjustment in height and cannot adjust the relative angle between the rotary flask and the water bath. When the evaporation component is in use, generally, the liquid level in the rotary flask should be flush with the liquid level in the water bath, and the heated area also needs to be adjusted. If only adjusted in the height direction, there may be a problem of contact between the rotary flask and the water bath; when the rotary flask is in direct contact with the water bath, collisions or uneven heating may occur. Summary of the Utility Model

[0005] In view of this, the embodiments of the present utility model provide an adjustable rotary evaporator to solve the problem in the prior art that the evaporation component can only be adjusted in one direction.

[0006] In a first aspect, an embodiment of the present utility model provides an adjustable rotary evaporator, which includes an evaporation component, a support component, and a water bath pot; the evaporation component is supported by the support component; the water bath pot is arranged below one side of the evaporation component; the support component includes a workbench and a first adjustment part arranged on the workbench; the support component further includes a second adjustment part arranged on an adjustment member of the first adjustment part; the head of the evaporation component is connected to the second adjustment part; the evaporation component moves up and down along the longitudinal direction of the workbench based on the first adjustment part; the first adjustment part includes a support arm, and the support arm is integrally arranged with the adjustment member; the second adjustment part is movably assembled with the support arm through a shaft hole; the head of the evaporation component is fixedly assembled with the installation groove of the second adjustment part; the evaporation component performs a rotation action based on the support arm through the second adjustment part.

[0007] Preferably, the first adjustment part further includes a sleeve with a hollow interior and a rack arranged inside the sleeve; a through hole is arranged on the body of the sleeve, and the through hole communicates with the inside of the sleeve.

[0008] Preferably, the adjustment member is sleeved on the outer surface of the sleeve, and the sleeve includes an adjustment gear that meshes and drives with the rack through the through hole; the adjustment gear includes an adjustment shaft fixedly assembled with itself, and the adjustment shaft extends from the inside of the adjustment member to the outside; the adjustment member drives the adjustment member to move up and down on the outer surface of the sleeve through the meshing drive of the rack and the adjustment gear.

[0009] Preferably, the first adjustment part further includes a limit tooth movably arranged on the adjustment member, and the limit tooth meshes with the adjustment gear and restricts the adjustment gear to rotate in only one direction.

[0010] Preferably, the second adjustment part includes a connection part and an adjustment part; the connection part and the adjustment part are integrally arranged, and an opening is arranged at the connection part between the connection part and the adjustment part; the rotating shaft of the connection part is in transmission connection with the stator of the adjustment part through the opening.

[0011] Preferably, the shaft hole of the adjustment part is coaxially arranged with the stator; a transmission cavity is arranged between the stator and the outer ring of the adjustment part; sealing rings are arranged at both ends of the transmission cavity between the shaft hole and the outer ring.

[0012] Preferably, the connection part is arranged in a cylindrical shape and is hollow inside, and fixing rings are arranged at both ends of the cylinder; the rotating shaft is position-limited through the fixing rings at both ends of the cylinder and rotates based on the fixing rings at both ends of the cylinder.

[0013] Preferably, the installation groove of the second adjustment part is arranged at one end connected to the support arm, and fixing holes are arranged around the installation groove; the machine head is embedded in the installation groove of the support arm, and the machine head is fixed by arranging pins in the fixing holes.

[0014] Preferably, a pair of detachable limiting rods are arranged inside the stator, and the pair of limiting rods are arranged on the stator at a preset angle.

[0015] Preferably, the stator is clamped with the inner wall of the housing of the second adjustment part through the limiting rods to limit the rotation angle of the second adjustment part.

[0016] The adjustable rotary evaporator provided by the present utility model has the following beneficial effects:

[0017] First, the evaporator of the present utility model is provided with two parts of adjustment mechanisms on the adjustment components, and the positions of the evaporation component can be adjusted in two directions. The evaporation component is lifted and rotated based on the first adjustment part and / or the second adjustment part to adjust the relative position between the evaporation component and the water bath, and the position where the rotary bottle is covered by water in the water bath can be adjusted, which can meet different experimental requirements and provide more flexible and efficient evaporation operations. Second, the design of the adjustment components makes the operation simple and easy to control the operating state of the equipment, improving the stability and reliability of the equipment. Through the combination and adjustment of different components, more efficient experimental operations can be realized, and the experimental efficiency is improved. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments of the present utility model will be briefly introduced below. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts, and these are all within the protection scope of the present utility model.

[0019] Figure 1 is an overall structural schematic diagram of an adjustable rotary evaporator;

[0020] Figure 2 is an assembly schematic diagram between the first adjustment part, the second adjustment part, and the machine head;

[0021] Figure 3 is a sectional structural schematic diagram of the first adjustment part;

[0022] Figure 4 is a structural schematic diagram of the first adjustment part;

[0023] Figure 5 is a structural schematic diagram of the second adjustment part

[0024] Figure 6 It is a schematic internal cross-section view of the adjusting part of the first adjusting unit;

[0025] Parts and numbers in the figure:

[0026] 10 - Evaporation component, 11 - Machine head, 12 - Rotary bottle, 13 - Solution, 14 - Gas collecting bottle, 15 - Condenser, 16 - Condensing pipe; 20 - First adjusting unit, 21 - Adjusting part, 22 - Support arm, 23 - Axle hole, 24 - Sleeve, 25 - Rack, 26 - Through hole, 27 - Adjusting gear, 271 - Adjusting shaft, 273 - Limiting tooth, 274 - Rotating shaft;

[0027] 30 - Second adjusting unit, 31 - Installation groove, 32 - Stator, 33 - Sealing ring, 34 - Fixed ring, 35 - Outer shell, 36 - Fixed hole, 37 - Limiting rod, 38 - Threaded connection, 39 - End cover;

[0028] 40 - Water bath; 50 - Workbench. Specific implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, elements defined by the statement "comprising..." do not exclude the existence of additional identical elements in the process, method, article or device comprising the said elements. If there is no conflict, the embodiments of the present utility model and the various features in the embodiments can be combined with each other, and all are within the protection scope of the present utility model.

[0030] Embodiment 1

[0031] Please refer toFigure 1 In an embodiment of the present utility model, an adjustable rotary evaporator is provided, which includes an evaporation component 10, a support component, and a water bath 40. The evaporation component 10 is supported by the support component. The water bath 40 is arranged below one side of the evaporation component 10, facilitating the contact between the rotary flask 12 of the evaporation component 10 and the internal liquid of the water bath 40 and heating the rotary flask 12. The support component includes a workbench 50 and a first adjustment part 20 arranged on the workbench 50. The support component further includes a second adjustment part 30 arranged on the adjustment member 21 of the first adjustment part 20. The head 11 of the evaporation component 10 is fixedly connected to the second adjustment part 30. The evaporation component 10 moves up and down along the longitudinal direction of the workbench 50 based on the first adjustment part 20. The first adjustment part 20 includes a support arm 22, and the support arm 22 is integrally arranged with the adjustment member 21. The support arm 22 extends in a direction close to the workbench 50. The evaporation component 10 is arranged close to one side of the water bath 40, facilitating the approach of the rotary flask 12 to the water bath 40. The second adjustment part 30 is movably assembled with the support arm 22 through a shaft hole 23. The head 11 of the evaporation component 10 is fixedly assembled with the installation groove 31 of the second adjustment part 30. The evaporation component 10 rotates based on the support arm 22 through the second adjustment part 30.

[0032] One end of the support arm 22 is fixedly assembled with the adjustment member 21 of the first adjustment part 20, and the support arm 22 can only be displaced according to the lifting of the adjustment member 21 of the first adjustment part 20 based on the first adjustment part 20. The other end of the support arm 22 extends into the shaft hole 23 of the second adjustment part 30 and is fixedly assembled. The fixed assembly is an interference fit, and a shrink fit connection or a key connection can be adopted. The head 11 of the evaporation component 10 is fixedly assembled with the connection part of the second adjustment part 30. Since the evaporation component 10 itself has a certain weight and there is also a solution 13 in the rotary flask 12, which further increases the overall mass of the evaporation component 10. To increase the reliability of its connection, an installation groove 31 is provided at the connection part. The installation groove 31 is provided with multiple layers of grooves, and the multiple layers of grooves are arranged at intervals. The mechanism is assembled with its adaptability and fixed through the assembly of the following pin and the fixing hole 36. The multi-layer fixing method makes its connection strength higher and the reliability more reliable, and it is not easy to be damaged during the experimental use. When rotation adjustment is required, hold the head 11 part and rotate. When rotating, it is preferably carried out when no test materials are set on each component. The evaporation component 10 further includes working components such as a rotary flask 12, a collecting flask 14, a condenser 15, and a condensing pipe 16. Such an arrangement can further ensure the safe use of these working components.

[0033] Example 2

[0034] See also Figure 2 and Figure 3 The utility model provides an adjustable rotary evaporator, wherein the first adjusting part 20 further comprises a sleeve 24 with a hollow interior and a rack 25 arranged inside the sleeve 24; the sleeve 24 has a through hole 26 in the body, and the through hole 26 is connected to the interior of the sleeve 24. The adjusting member 21 is sleeved on the outer surface of the sleeve 24, and the sleeve 24 comprises an adjusting gear 27 that is meshed with the rack 25 through the through hole 26; the adjusting gear 27 comprises an adjusting shaft 271 that is fixedly assembled with the adjusting member 21, and the adjusting shaft 271 extends from the inside of the adjusting member 21 to the outside; the adjusting member 21 is driven to rise and fall on the outer surface of the sleeve 24 through the meshing transmission between the rack 25 and the adjusting gear 27. The first adjusting part 20 further comprises a limiting tooth 273 that is movably arranged on the adjusting member 21, and the limiting tooth 273 is meshed with the adjusting gear 27 and limits the adjusting gear 27 to be able to rotate in only one direction.

[0035] See also Figure 3 The adjusting member 21 is sleeved on the body of the sleeve 24 and works through the meshing transmission between the adjusting gear 27 and the rack 25; the adjusting gear 27 is provided with an adjusting shaft 271, which extends out of the adjusting member 21, and a handle or a driving component is provided at one end of the adjusting shaft 271. Figure 6 The adjusting gear 27 is rotated manually or electrically. When the adjusting gear 27 rotates, it forms a one-wheel-one-tooth ratchet mechanism with the limiting tooth 273, so that the adjusting gear 27 can only rotate in one direction, and the adjusting member 21 can only move upward. This arrangement is to prevent the evaporation component 10 from unexpectedly falling or being damaged due to gravity when it rises. The limiting tooth 273 restricts the adjusting gear 27, so that the evaporation component 10 does not fall due to reasons other than manual adjustment. When the adjusting member 21 is required to drive the When the evaporation component 10 is to be lowered, it is only necessary to move the end of the limit tooth 273 that is not in contact with the adjusting gear 27. Since the limit tooth 273 itself is movably assembled based on the inside of the adjusting member 21, the limit tooth 273 can rotate based on its installation position, but since one end is clamped by the tooth groove of the adjusting gear 27, it cannot move. By artificially fluctuating one end of it and manually adjusting it, the adjusting gear 27 loses its clamping force, and the adjusting member 21 can be freely raised and lowered by the movement of the adjusting gear 27 on the rack 25.

[0036] Example 3

[0037] Please refer to Figure 1 and Figure 5 As shown in FIGS. and, an adjustable rotary evaporator is provided in an embodiment of the present utility model. The second adjusting part 20 includes a connecting part and an adjusting part; the connecting part and the adjusting part are integrally arranged, and an opening is provided at the connection between the connecting part and the adjusting part; a rotating shaft 274 of the connecting part is in transmission connection with a stator 32 of the adjusting part through the opening. A shaft hole 23 of the adjusting part is coaxially arranged with the stator 32; a transmission cavity is provided between the stator 32 and the outer ring of the adjusting part; sealing rings 33 are provided at both ends of the transmission cavity between the shaft hole 23 and the outer ring. The connecting part is arranged in a cylindrical shape and is hollow inside, and fixing rings 34 are provided at both ends of the cylinder. The connecting part is arranged in a cylindrical shape and is hollow inside, and fixing rings 34 are provided at both ends of the cylinder. The position of the rotating shaft 274 is limited by the fixing rings 34 at both ends of the cylinder and rotates based on the fixing rings 34 at both ends of the cylinder. When the rotating shaft 274 enters the inside of the fixing ring 34, it is restricted by the fixing ring 34. Please refer to Figure 5 As shown in FIG., further, one end of the rotating shaft 274 is provided with an end cap 39, and the rotating shaft 274 enters the inside of the cylinder through the end without the end cap 39; by rotating the end cap 39, the external thread on the rotating shaft 274 is threadedly connected 38 with the internal thread inside the cylinder and fixed. At this time, the housing 35 is locked by the fixing of the rotating shaft 274 and cannot be adjusted in angle any more. When the angle needs to be adjusted, the rotating shaft 274 needs to be screwed out through the end cap 39 so that the housing 35 can move, and then the angle can be adjusted at this time.

[0038] Please refer to Figure 4 As shown in FIG., the installation groove 31 of the second adjusting part 30 is provided at one end connected to the support arm 22, and fixing holes 36 are provided around the installation groove 31; the machine head 11 is embedded in the installation groove 31 of the support arm 22, and the machine head 11 is fixed by arranging pins in the fixing holes 36. A pair of detachable limiting rods 37 are provided inside the stator 32, and the pair of limiting rods 37 are arranged on the stator 32 at a preset angle. The rotation angle of the stator 32 is limited by the clamping connection between the stator 32 and the rotating shaft 274 through the pair of limiting rods 37.

[0039] After the machine head 11 is installed with the adjustment part, the evaporation part 10 can rotate. However, the rotation angle cannot be too large to avoid accidents such as collision with the water bath 40 due to excessive angle rotation, which may cause danger. Therefore, a limiting rod 37 is used to limit the rotation angle of the stator 32. The limiting rods 37 are arranged at preset angular intervals. The limiting rods 37 are detachably arranged and can be adjusted according to the required angle or not set at all. But when set, a pair of them should be set and arranged at an interval angle so that both ends can be clamped with the inner wall of the housing 35. When rotating clockwise, one limiting rod 37 rotates to a preset angle and contacts one end of the inner wall of the housing 35 and is clamped with the inner wall of the housing 35, and then the second adjustment part 30 can no longer rotate. When rotating counterclockwise, the other limiting rod 37 rotates to a preset angle and contacts the other end of the inner wall of the housing 35 and is clamped by the inner wall of the housing 35, and then the second adjustment part 30 can no longer rotate. Moreover, relative friction will also be generated when the limiting rod 37 contacts the rotating shaft 274, which further limits the rotation.

[0040] Embodiment 4

[0041] Please refer to Figure 1, the embodiment of the present utility model provides an adjustable rotary evaporator. The adjustable rotary evaporator provided by the present utility model has the following beneficial effects: Firstly, the evaporator of the present utility model is provided with two parts of adjustment mechanisms on the adjustment component, which can adjust the position of the evaporation component 10 in two directions, lift and rotate the evaporation component 10 based on the workbench 50, so as to adjust the relative position between the evaporation component 10 and the water bath 40, and adjust the position where the rotary flask 12 is covered by water in the water bath 40, which can meet different experimental requirements and provide more flexible and efficient evaporation operations. Secondly, the design of the adjustment component makes the operation simple and easy to control the running state of the device, improving the stability and reliability of the device. Through the combination and adjustment of different components, more efficient experimental operations can be achieved, improving the experimental efficiency. The core of the design of this evaporator is the structure of the support component, which enables the evaporation component 10 to be lifted in the vertical direction and rotated through the second adjustment part 30. This design makes the evaporator have a wider applicability and can adapt to different experimental requirements, thus providing more possibilities in laboratory work. The design of the evaporator takes into account the convenience of operation. Through the design of the rack 25 and the adjustment gear 27 of the first adjustment part 20, the operator can easily control the lifting of the evaporation component 10, and the open transmission connection of the second adjustment part 30 makes the rotation action smoother. This operational convenience not only improves work efficiency but also reduces the operation difficulty during use. The flexibility and convenience of the evaporator directly affect the experimental efficiency. By quickly and accurately adjusting the position and angle of the evaporation component 10, researchers can conduct experimental operations more effectively, shorten the experimental cycle, and improve the reliability of experimental data. This improvement in experimental efficiency not only helps to accelerate the output of scientific research results but also reduces the error rate during the experiment and improves the accuracy of experimental results. The stability and reliability of the device are very important factors in scientific research experiments. Through the carefully designed support component and adjustment component, this evaporator can maintain a stable working state during use and can operate efficiently for a long time, reducing equipment failures and maintenance times, thereby improving the continuity and reliability of experimental work.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. An adjustable rotary evaporator, characterized in that: The invention comprises an evaporation component (10), a support component and a water bath (40); the evaporation component (10) is supported by the support component; the water bath (40) is arranged below one side of the evaporation component (10); The support component comprises a workbench (50) and a first adjustment portion (20) disposed on the workbench (50); the support component further comprises a second adjustment portion (30) disposed on an adjustment member (21) of the first adjustment portion (20); the head (11) of the evaporation component (10) is connected to the second adjustment portion (30); The evaporation component (10) is lifted and lowered along the longitudinal direction of the workbench (50) based on the first adjustment part (20); the first adjustment part (20) comprises a support arm (22), and the support arm (22) and the adjustment member (21) are integrally arranged; the second adjustment part (30) is movably assembled with the support arm (22) through an axial hole (23); the head (11) of the evaporation component (10) and the mounting groove (31) of the second adjustment part (30) are fixedly assembled; the evaporation component (10) is rotated based on the support arm (22) through the second adjustment part (30).

2. An adjustable rotary evaporator according to claim 1, characterized in that: The first adjustment portion (20) further comprises a sleeve (24) with a hollow interior and a rack (25) arranged inside the sleeve (24); the body of the sleeve (24) is provided with a through hole (26), and the through hole (26) is communicated with the interior of the sleeve (24).

3. An adjustable rotary evaporator according to claim 2, characterized in that: The adjusting member (21) is sleeved on the outer surface of the sleeve (24), and the sleeve (24) includes an adjusting gear (27) that is meshed with the rack (25) through the through hole (26); the adjusting gear (27) includes an adjusting shaft (271) fixedly assembled with the adjusting gear, and the adjusting shaft (271) extends from the inside of the adjusting member (21) to the outside; the adjusting member (21) is driven to rise and fall on the outer surface of the sleeve (24) through the meshing transmission between the rack (25) and the adjusting gear (27).

4. An adjustable rotary evaporator according to claim 3, characterized in that: The first adjusting portion (20) further comprises a limiting tooth (273) movably arranged on the adjusting member (21), wherein the limiting tooth (273) meshes with the adjusting gear (27) and limits the adjusting gear (27) to rotate in only one direction.

5. The adjustable rotary evaporator according to claim 1, characterized in that: The second adjusting portion (30) comprises a connecting portion and an adjusting portion; the connecting portion and the adjusting portion are arranged in an integrated manner, and an opening is provided at the connection between the connecting portion and the adjusting portion; the rotating shaft (274) of the connecting portion and the stator (32) of the adjusting portion are transmission-connected via the opening.

6. The adjustable rotary evaporator according to claim 5, characterized in that: The shaft hole (23) of the adjusting part is arranged coaxially with the stator (32); a transmission cavity is provided between the stator (32) and the outer ring of the adjusting part; and sealing rings (33) are provided at both ends of the transmission cavity between the shaft hole (23) and the outer ring.

7. An adjustable rotary evaporator according to claim 6, characterized in that: The connecting portion is in the shape of a cylinder and is hollow inside. Fixed rings (34) are provided at both ends of the cylinder. The rotating shaft (274) is limited in position by the fixed rings (34) at both ends of the cylinder and rotates based on the fixed rings (34) at both ends of the cylinder.

8. The adjustable rotary evaporator according to claim 5, characterized in that: The mounting groove (31) of the second adjustment portion (30) is arranged at one end connected to the support arm (22), and fixing holes (36) are arranged around the mounting groove (31); the machine head (11) is embedded in the mounting groove (31) of the support arm (22), and pins are arranged in the fixing holes (36) to fix the machine head (11).

9. The adjustable rotary evaporator according to claim 6, characterized in that: A pair of detachable limiting rods (37) are provided inside the stator (32), and the pair of limiting rods (37) are arranged on the stator (32) at a preset angle.

10. The adjustable rotary evaporator according to claim 9, characterized in that: The stator (32) is clamped with the inner wall of the shell of the second adjustment part (30) via the limiting rod (37) to limit the rotation angle of the second adjustment part (30).

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