Rotary evaporator

Abstract

The utility model provides a rotary evaporator which comprises a base, a guide post is arranged on the base, a lifting seat is arranged on the guide post in a liftable manner, and an evaporating flask mounting structure is arranged on the lifting seat. A supporting frame is arranged at the top of the guide column, a driving arm is hinged to the supporting frame, a handle is arranged at the end of the driving arm, a lifting mechanism connected with the lifting base is arranged on the driving arm, rotation of the driving arm is converted into driving of the lifting base to ascend and descend through the lifting mechanism, and a locking mechanism connected with the driving arm is arranged on the supporting frame. And the position of the driving arm can be selectively locked or unlocked through the locking mechanism. The evaporation flask mounting structure can be rapidly lifted to a certain height by rotating the driving arm, the position of the moved driving arm can be fixed through the locking mechanism, then the evaporation flask is replaced, the situation that the evaporation flask collides with a water bath kettle to be damaged in the evaporation flask replacing process is avoided, the experiment cost is effectively saved, and the experiment efficiency is improved. Meanwhile, the experiment safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to experimental equipment technical field, concretely relates to a rotary evaporator. BACKGROUND

[0002] Rotary evaporator is a kind of commonly used instrument in laboratory, by motor, distillation flask, heating pan and condenser tube, and its main working principle is constant temperature heating under vacuum condition, makes rotary bottle constant speed rotation, and material forms large area film on bottle wall and evaporates efficiently.Vapor is cooled and recovered in collecting bottle by high-efficiency glass condenser, greatly improves evaporation efficiency.It is especially suitable for the concentration and purification of biological products that are easily decomposed and denatured by high temperature, and is widely used in the concentration, crystallization, drying, separation and solvent recovery of pharmaceutical, chemical and biopharmaceutical industries.

[0003] Such as the Chinese utility model patent with the publication number CN220736228U provides a kind of rotary evaporator, the rotary evaporator when using, by pushing first fixed block cover the surface of condenser and collecting bottle one end, then push second fixed block and make the one end of first fixed block and second fixed block adhere by rotating shaft rotation, and with screw penetration thread groove is screwed connection, make condenser and collecting bottle more stably connect together, avoid the loosening of condenser and collecting bottle when shaking.

[0004] However, the position of the existing rotary evaporator installation evaporation bottle is close to the position of the water bath, it is not convenient to quickly lift the installation structure of the evaporation bottle, so that the evaporation bottle is easy to collide with the water bath and be damaged when installing the evaporation bottle, which increases the experimental cost and reduces the safety of the rotary evaporator in use. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model provides a kind of rotary evaporator to solve the technical problems that the position of the existing rotary evaporator installation evaporation bottle is close to the position of the water bath, it is not convenient to quickly lift the installation structure of the evaporation bottle, so that the evaporation bottle is easy to collide with the water bath and be damaged when installing the evaporation bottle.

[0006] To achieve the above purpose, the utility model provides the following technical scheme, a kind of rotary evaporator, including:

[0007] Base, the guide column is set on the base;

[0008] Lifting seat, the lifting seat is set on the guide column in a lifting manner, and the evaporation bottle installation structure is arranged on the lifting seat;

[0009] Support frame, the support frame is arranged at the top of the guide column, the driving arm is hingedly connected to the support frame, and the handle is arranged at the end of the driving arm;

[0010] A lifting mechanism is arranged on the driving arm and connected with the lifting seat to convert the rotation of the driving arm into driving the lifting seat to lift and lower.

[0011] A locking mechanism is arranged on the supporting frame and connected with the driving arm to selectively lock or unlock the position of the driving arm.

[0012] In a preferred embodiment, a supporting plate is further fixed on the base, a receiving seat is arranged on the guide column and can slide up and down, and a buffer spring is arranged between the receiving seat and the supporting plate.

[0013] In a preferred embodiment, the lifting mechanism comprises a connecting frame, one end of the connecting frame is hinged with the driving arm, and the other end is hinged with the lifting seat.

[0014] In a preferred embodiment, the distance between the hinging point of the connecting frame on the driving arm and the hinging point of the driving arm on the supporting frame is less than the distance between the hinging point of the connecting frame on the driving arm and the handle.

[0015] In a preferred embodiment, the locking mechanism comprises:

[0016] A sliding block, a sliding groove is arranged on the supporting frame, and the sliding block is slidingly arranged in the sliding groove;

[0017] A mounting rod, one end of the mounting rod is hinged with the sliding block, and the other end is hinged with the driving arm and is provided with a ratchet wheel;

[0018] A movable frame, the movable frame is slidingly arranged on the driving arm and is provided with an elastic member between the movable frame and the inner side of the driving arm, a pawl is arranged on the movable frame, and the pawl is clamped on the ratchet wheel; and

[0019] A pressing rod, the pressing rod is slidingly arranged in the handle, one end of the pressing rod protrudes out of the handle, and the other end of the pressing rod is connected with the movable frame.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] When the rotary evaporator is used, the handle can be used to move the driving arm, the lifting mechanism can drive the lifting seat to ascend along the guide column in the movement process of the driving arm, so that the evaporation bottle mounting structure can be quickly lifted to a certain height, and the driving arm can be fixed in position by the locking mechanism in the movement process of the driving arm, and the evaporation bottle can be replaced, so that the evaporation bottle is prevented from colliding with the water bath pot and being damaged in the process of replacing the evaporation bottle, experimental cost is effectively saved, and the safety of the experiment is improved. After replacement is completed, the position of the driving arm is released by the locking mechanism, and the driving arm is controlled to reset, so that the evaporation bottle can enter the water bath pot to perform rotary evaporation work. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 A three-dimensional structural diagram of a rotary evaporator provided by this utility model;

[0024] Figure 2 This is a side view of a rotary evaporator according to the present invention;

[0025] Figure 3 This is a schematic diagram of the locking mechanism in a rotary evaporator according to the present invention;

[0026] Figure label:

[0027] 1. Base; 2. Guide column; 3. Support plate; 4. Support seat; 5. Buffer spring; 6. Lifting seat; 7. Evaporator bottle mounting structure; 8. Support frame; 9. Slide groove; 10. Slider; 11. Drive arm; 12. Handle; 13. Connecting frame; 14. Mounting rod; 15. Ratchet; 16. Movable frame; 17. Push rod; 18. Pawl; 19. Elastic element. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0029] Example:

[0030] like Figure 1 , 2 As shown, this utility model provides a rotary evaporator, including a base 1, a guide column 2 on the base 1, a lifting seat 6 that can be raised and lowered on the guide column 2, and an evaporation flask mounting structure 7 on the lifting seat 6. A support frame 8 is provided at the top of the guide column 2, and a drive arm 11 is hinged to the support frame 8. A handle 12 is provided at the end of the drive arm 11, and a lifting mechanism connected to the lifting seat 6 is provided on the drive arm 11. The rotation of the drive arm 11 is converted into driving the lifting seat 6 to rise and fall through the lifting mechanism. The lifting mechanism includes a connecting frame 13, one end of which is hinged to the drive arm 11, and the other end of which is hinged to the lifting seat 6.

[0031] The rotary evaporator in use, the evaporation flask can be installed through the evaporation flask installation structure 7, and the evaporation flask is driven to rotate in the water bath kettle on the base 1 to perform the rotary evaporation work. When the evaporation flask needs to be installed or replaced, the driving arm 11 can be driven to rotate along the hinge joint with the support frame 8 by moving the handle 12, and the driving arm 11 drives the lifting seat 6 to rise in the process of rotation through the connecting frame 13, so as to drive the evaporation flask installation structure 7 to rise.

[0032] As shown in / 2, in the embodiment, the distance between the hinge joint of the connecting frame 13 on the driving arm 11 and the hinge joint of the driving arm 11 on the support frame 8 is less than the distance between the hinge joint of the connecting frame 13 on the driving arm 11 and the handle 12. By increasing the power arm, the whole evaporation flask installation structure 7 is lifted without applying a large force, and the labor intensity of the experimental personnel is reduced.

[0033] As shown in Figure 2 , 3 As shown in the embodiment, the support frame 8 is provided with a locking mechanism connected with the driving arm 11, and the position of the driving arm 11 can be selectively locked or unlocked through the locking mechanism. The locking mechanism comprises a sliding block 10, a mounting rod 14, a movable frame 16 and a pressing rod 17. The support frame 8 is provided with a sliding groove 9, the sliding block 10 is slidingly arranged in the sliding groove 9, one end of the mounting rod 14 is hingedly connected with the sliding block 10, the other end is hingedly connected with the driving arm 11 and is provided with a ratchet wheel 15, the movable frame 16 is slidingly arranged on the driving arm 11 and is provided with an elastic element 19 between the inner side of the driving arm 11, the movable frame 16 is provided with a pawl 18, the pawl 18 is clamped on the ratchet wheel 15, and the pressing rod 17 is slidingly arranged in the handle 12, one end of the pressing rod 17 protrudes out of the handle 12, and the other end is connected with the movable frame 16.

[0034] In the process of moving the handle 12 to drive the driving arm 11 to move, the sliding block 10 is driven to slide in the sliding groove 9 through the cooperation of the driving arm 11 and the mounting rod 14, and the mounting rod 14 is rotated along the hinge joint with the driving arm 11 to drive the ratchet wheel 15 to rotate. The ratchet wheel 15 drives the pawl 18 on the movable frame 16 to move through the elastic element 19 in the process of rotating to lock the movement of the ratchet wheel 15 in one direction, so that the position of the driving arm 11 does not need to be fixed for a long time. After the evaporation flask is installed or replaced, the pawl 18 can be driven to disengage from the ratchet wheel 15 by pressing the end of the handle 12 protruding out of the handle 12 to release the fixation of the driving arm 11, so that the evaporation flask installation structure 7 can be reset to make the evaporation flask enter the water bath kettle.

[0035] As shown in Figure 1As shown, in the embodiment, the base 1 is further provided with a supporting plate 3, the guide column 2 is provided with a lifting seat 4 which can be lifted and slid, and the lifting seat 4 and the supporting plate 3 are provided with a buffer spring 5. When the control evaporation bottle installation structure 7 is reset, the lifting seat 6 abuts against the lifting seat 4, and the buffer spring 5 can buffer the descent of the lifting seat 6, so that the impact force caused by the insufficient arm strength of the user or the operation error when the lifting seat 6 is quickly lowered to the lowest position is not transmitted to the evaporation bottle to damage the evaporation bottle, and the safety of the rotary evaporator during use is improved.

[0036] The specific use mode and beneficial effects of the utility model are as follows:

[0037] When the rotary evaporator is used, the handle 12 can be used to move the driving arm 11, the driving arm 11 can drive the lifting seat 6 to ascend along the guide column 2 through the lifting mechanism during movement, so that the evaporation bottle installation structure 7 is quickly lifted to a certain height, and the driving arm 11 can be positionally fixed through the locking mechanism during movement, the evaporation bottle is replaced, the evaporation bottle is prevented from being damaged by colliding with the water bath pot during replacement, the experimental cost is effectively saved, and the safety of the experiment is improved. After replacement is completed, the position of the driving arm 11 is released through the locking mechanism, the driving arm 11 is controlled to reset, and the evaporation bottle can enter the water bath pot to perform rotary evaporation work.

[0038] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious for those skilled in the art. Therefore, these modifications or improvements made without deviating from the spirit of the utility model all belong to the scope of protection required by the utility model.

Claims

1. A rotary evaporator, characterized in that, Including: A base (1) is provided with a guide post (2); The lifting seat (6) is raised and lowered on the guide column (2), and the lifting seat (6) is provided with an evaporator mounting structure (7); A support frame (8) is provided on the top of the guide post (2), and a drive arm (11) is hinged on the support frame (8). A handle (12) is provided at the end of the drive arm (11). A lifting mechanism is provided on the drive arm (11) and connected to the lifting seat (6) to convert the rotation of the drive arm (11) into driving the lifting seat (6) to rise and fall; and A locking mechanism is provided on the support frame (8) and connected to the drive arm (11) to selectively lock or unlock the position of the drive arm (11).

2. The rotary evaporator according to claim 1, characterized in that: A support plate (3) is fixedly installed on the base (1), and a sliding support seat (4) is installed on the guide column (2). A buffer spring (5) is installed between the support seat (4) and the support plate (3).

3. The rotary evaporator according to claim 1, characterized in that: The lifting mechanism includes a connecting frame (13), one end of which is hinged to the drive arm (11) and the other end is hinged to the lifting seat (6).

4. A rotary evaporator according to claim 3, characterized in that: The distance between the hinge point of the connecting frame (13) on the drive arm (11) and the hinge point of the drive arm (11) on the support frame (8) is less than the distance between the hinge point of the connecting frame (13) on the drive arm (11) and the handle (12).

5. A rotary evaporator according to claim 1, characterized in that, The locking mechanism includes: The slider (10) is provided with a groove (9) on the support frame (8), and the slider (10) is slidably engaged in the groove (9); The mounting rod (14) is hinged at one end to the slider (10) and at the other end to the drive arm (11) and is provided with a ratchet (15); A movable frame (16) is slidably mounted on the drive arm (11), and an elastic element (19) is provided between the movable frame (16) and the inner side of the drive arm (11). A pawl (18) is provided on the movable frame (16), and the pawl (18) is engaged with the ratchet (15). The lever (17) is slidably disposed inside the handle (12), with one end protruding outside the handle (12) and the other end connected to the movable frame (16).

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