Rotary evaporator with evaporating flask convenient to replace

Abstract

The rotary evaporator comprises a rotary evaporator body (1) and the evaporating flask (2), the rear side of the evaporating flask (2) is movably connected with the front side of the rotary evaporator body (1), an adjusting column (3) is arranged on the surface of the rotary evaporator body (1), an adjusting shell (4) is movably connected to the surface of the adjusting column (3), and the adjusting shell (4) is connected with the evaporating flask (2). A movable frame (5) is fixedly connected to the front side of the adjusting shell (4), a movable shell (6) is movably connected to an inner cavity of the movable frame (5), a movable positioning ring (7) is fixedly connected to the front side of the movable shell (6), and a fixed positioning ring (8) used in cooperation with the movable positioning ring (7) is fixedly connected to the surface of the adjusting shell (4). The opposite sides of the movable positioning ring (7) and the fixed positioning ring (8) are in contact with the surface of the evaporation bottle (2), an adjusting device (9) is arranged in an inner cavity of the adjusting shell (4), and a moving device (10) is arranged in an inner cavity of the movable shell (6). Through cooperative use of the adjusting device (9), the adjusting clamping block (901), the moving column (902), the moving shell (903) and the spring (904), the problems that an existing evaporation bottle (2) is one of core components of the rotary evaporator (1), can bear working conditions in a high-temperature and vacuum environment, and can be aged, abraded or damaged after being used for a long time are solved, and the problem that the evaporation bottle (2) is prone to being damaged is solved. The problems may cause the reduction of the sealing performance of the evaporating flask (2), influence on the experiment accuracy and need of positioning and replacing the evaporating flask (2), the evaporating flask (2) is usually replaced by adopting a bolt to adjust the tightness of a clamp, the replacement complexity and the time cost are increased, the tightness of the bolt is difficult to master, and the body of the flask is easy to damage due to over-tightness. However, the existing rotary evaporator (1) does not have a component for conveniently replacing the evaporating flask (2).

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary evaporators, in particular to a rotary evaporator which is convenient for replacing an evaporating bottle. Background Art

[0002] The rotary evaporator is a highly efficient evaporation instrument widely used in laboratories. Its working principle is based on reduced pressure distillation and rotation. The pressure in the system is reduced by a vacuum pump, creating a reduced pressure environment, which lowers the boiling point of the liquid and allows it to evaporate quickly at a relatively low temperature. In summary, the problems existing in the prior art are: the evaporating flask is one of the core components of the rotary evaporator and can withstand working conditions under high temperature and vacuum environment. The evaporating flask may age, wear or be damaged after long-term use. These problems may cause the sealing of the evaporating flask to decrease, affecting the accuracy of the experiment, and the evaporating flask needs to be positioned and replaced. Usually, the evaporating flask is replaced by adjusting the tightness of the clamp with bolts, which increases the complexity and time cost of replacement. In addition, the tightness of the bolts is difficult to control, and excessive tightening may easily cause damage to the flask body. However, the existing rotary evaporator does not have a component for conveniently replacing the evaporating flask. Therefore, a rotary evaporator that is easy to replace the evaporating flask is proposed to solve the above problems. Utility Model Content

[0003] In response to the problems existing in the prior art, the utility model provides a rotary evaporator that is easy to replace the evaporating flask. The utility model has the advantage of enabling the rotary evaporator to conveniently replace the evaporating flask, and solves the problem that the existing evaporating flask is one of the core components of the rotary evaporator and can withstand working conditions under high temperature and vacuum environment. The evaporating flask may age, wear or be damaged after long-term use. These problems may cause the sealing of the evaporating flask to decrease, affecting the accuracy of the experiment, and the evaporating flask needs to be positioned and replaced. Usually, the evaporating flask is replaced by adjusting the tightness of the clamp with bolts, which increases the complexity and time cost of replacement, and the tightness of the bolts is difficult to control. Over-tightening may easily cause damage to the bottle body. However, the existing rotary evaporator does not have a component for conveniently replacing the evaporating flask.

[0004] The utility model is achieved as follows: a rotary evaporator for facilitating replacement of an evaporating flask comprises a rotary evaporator and an evaporating flask, the rear side of the evaporating flask being movably connected to the front side of the rotary evaporator, an adjusting column being provided on the surface of the rotary evaporator, an adjusting shell being movably connected to the surface of the adjusting column, a movable frame being fixedly connected to the front side of the adjusting shell, an inner cavity of the movable frame being movably connected to the movable shell, a movable positioning ring being fixedly connected to the front side of the movable shell, a fixed positioning ring being fixedly connected to the surface of the adjusting shell for use in conjunction with the movable positioning ring, opposite sides of the movable positioning ring and the fixed positioning ring both being in contact with the surface of the evaporating flask, an adjusting device being provided in the inner cavity of the adjusting shell, and a movable device being provided in the inner cavity of the movable shell.

[0005] As a preferred embodiment of the present invention, the adjusting device includes an adjusting block, two movable columns are fixedly connected to the left side of the adjusting block, the inner cavity of the adjusting shell is fixedly connected to a movable outer shell used in conjunction with the movable column, the surface of the movable column is movably connected to the inner cavity of the movable outer shell, the surface of the movable outer shell is fixedly connected to a spring, the surface of the spring is fixedly connected to the surface of the adjusting block, and by providing the adjusting device, when the evaporating flask needs to be adjusted in height according to the position of the rotary evaporator after replacement, the adjusting device has an adjusting effect on the height of the evaporating flask.

[0006] As a preferred embodiment of the present invention, the top of the adjusting block is fixedly connected to an extrusion column frame, and the inner cavity of the adjusting shell is movably connected to a triangular extrusion frame used in conjunction with the extrusion column frame. The surface of the triangular extrusion frame contacts the surface of the extrusion column frame, and the left side of the triangular extrusion frame passes through the adjusting shell and extends to the outside of the inner cavity of the adjusting shell. By arranging the extrusion column frame and the triangular extrusion frame, when the triangular extrusion frame moves, an extrusion force can be generated on the extrusion column frame, and the extrusion column frame subjected to the extrusion force can drive the adjusting block to move.

[0007] As a preferred embodiment of the present invention, two square frames used in conjunction with the triangular extrusion frame are fixedly connected to the left side of the adjustment shell, and the surface of the square frame is movably connected to the inner cavity of the triangular extrusion frame. By setting the square frame, the triangular extrusion frame is pulled to drive the triangular extrusion frame to move along the surface of the square frame. The setting of the square frame has a limiting effect on the moving position of the triangular extrusion frame.

[0008] As a preferred embodiment of the present invention, the surface of the adjusting column is provided with an adjusting slot used in conjunction with the adjusting card block. The number of the adjusting slots is several and evenly distributed on the surface of the adjusting column. The surface of the adjusting card block is in contact with the inner cavity of the adjusting slot. By providing the adjusting slot, when the adjusting shell moves to a suitable height, the triangular extrusion frame is released, and the restoring force generated by the spring restoring its shape will drive the adjusting card block to be stuck in the inner cavity of the adjusting slot. The coordinated use of the adjusting block and the adjusting slot has a limiting effect on the height of the adjusting shell.

[0009] As a preferred embodiment of the present invention, the moving device includes two moving card shells, opposite sides of the two moving card shells both penetrate the moving shell and extend to the outside of the inner cavity of the moving shell, and the two opposite sides of the moving card shells are fixedly connected with compression springs, the inner cavity of the moving shell is fixedly connected with two moving long rods used in conjunction with the moving card shells, the surface of the moving long rods is movably connected to the inner cavity of the moving card shell, and the front side of the moving card is fixedly connected with two control plates, the front side of the control plate penetrates the moving shell and extends to the outside of the inner cavity of the moving shell. By setting up the moving device, when the replaced evaporating flask needs to be fixed by the fixed positioning ring and the moving positioning ring, the moving device has an adjusting effect on the position of the moving positioning ring.

[0010] As the utility model prefers, the top and bottom of the mobile frame cavity are provided with mobile clamping grooves matched with the mobile clamping shells, the surface of the mobile clamping shell is in contact with the inner cavity of the mobile clamping groove, the number of the mobile clamping grooves is several and evenly distributed on the top and bottom of the mobile frame cavity, by setting the mobile clamping groove, when the mobile shell is loosened from the control panel in the appropriate position, the restoring force generated by the restoring shape of the compression spring will drive the mobile clamping shell to be clamped into the inner cavity of the mobile clamping groove, and the cooperation of the mobile clamping shell and the mobile clamping groove limits the position of the mobile shell.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、The utility model discloses a adjusting device, adjusting clamping block, mobile column, mobile shell and spring's cooperation is set up, has solved that the existing evaporating bottle is one of the core components of rotary evaporator, can bear the working condition under high temperature and vacuum environment, the evaporating bottle can appear ageing, wear or damage after long -time use, these problems can cause the sealing of evaporating bottle to reduce, influence experiment accuracy, need to replace evaporating bottle of positioning, usually evaporating bottle adopts the way of bolt adjusting clamp tightness and is replaced, increases replacement complexity and time cost, and the bolt tightness is difficult to grasp, and too tight is easy to cause damage to the bottle body, but the existing rotary evaporator does not have the component of convenient replacement of evaporating bottle.

[0013] 2、The utility model discloses a adjusting device, when extruding the column frame and moving, will drive adjusting clamping block to move to left side, when adjusting clamping block moves, will drive mobile column along with the inner cavity of mobile shell and moves, and the force produced when adjusting clamping block moves makes spring to have elastic deformation, and the extruding force produced when spring restores shape will drive adjusting clamping block to be clamped into the inner cavity of adjusting clamping groove, and adjusting device has the adjusting effect to the height of evaporating bottle. ACCURACY OF THE DRAWINGS

[0014] Figure 1 It is the three-dimensional structure schematic diagram provided by the utility model embodiment;

[0015] Figure 2 It is the connection three-dimensional schematic diagram of fixed positioning ring, mobile positioning ring and evaporating bottle provided by the utility model embodiment;

[0016] Figure 3 It is the three-dimensional sectional view of mobile shell provided by the utility model embodiment;

[0017] Figure 4 It is the three-dimensional sectional view of adjusting shell provided by the utility model embodiment.

[0018] In the figure: 1. Rotary evaporator; 2. Evaporating flask; 3. Adjusting column; 4. Adjusting shell; 5. Moving frame; 6. Moving shell; 7. Moving positioning ring; 8. Fixed positioning ring; 9. Adjusting device; 10. Moving device; 901. Adjusting block; 802. Moving column; 903. Moving shell; 904. Spring; 11. Extrusion column frame; 12. Triangular extrusion frame; 13. Square frame; 14. Adjusting slot; 1001. Moving shell; 1002. Compression spring; 1003. Moving long rod; 1004. Control panel; 15. Moving slot. DETAILED DESCRIPTION

[0019] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0020] The structure of the present utility model is described in detail below with reference to the accompanying drawings.

[0021] like Figures 1 to 4 As shown, an embodiment of the present invention provides a rotary evaporator for easy replacement of an evaporating flask, comprising a rotary evaporator 1 and an evaporating flask 2, the rear side of the evaporating flask 2 being movably connected to the front side of the rotary evaporator 1, an adjusting column 3 being provided on the surface of the rotary evaporator 1, an adjusting shell 4 being movably connected to the surface of the adjusting column 3, a movable frame 5 being fixedly connected to the front side of the adjusting shell 4, a movable shell 6 being movably connected to the inner cavity of the movable frame 5, a movable positioning ring 7 being fixedly connected to the front side of the movable shell 6, a fixed positioning ring 8 being fixedly connected to the surface of the adjusting shell 4 for use in conjunction with the movable positioning ring 7, opposite sides of the movable positioning ring 7 and the fixed positioning ring 8 being in contact with the surface of the evaporating flask 2, an adjusting device 9 being provided in the inner cavity of the adjusting shell 4, and a movable device 10 being provided in the inner cavity of the movable shell 6.

[0022] refer to Figure 4 The adjusting device 9 includes an adjusting block 901, two movable columns 902 are fixedly connected to the left side of the adjusting block 901, the inner cavity of the adjusting shell 4 is fixedly connected to a movable outer shell 903 used in conjunction with the movable columns 902, the surface of the movable column 902 is movably connected to the inner cavity of the movable outer shell 903, the surface of the movable outer shell 903 is fixedly connected to a spring 904, and the surface of the spring 904 is fixedly connected to the surface of the adjusting block 901.

[0023] With the above solution, by providing the adjusting device 9 , when the evaporating flask 2 needs to be adjusted in height according to the position of the rotary evaporator 1 after replacement, the adjusting device 9 can adjust the height of the evaporating flask 2 .

[0024] refer to Figure 4The top of the adjusting clamp block 901 is fixedly connected with an extrusion column frame 11, the inner cavity of the adjusting shell 4 is movably connected with a triangular extrusion frame 12 used in cooperation with the extrusion column frame 11, the surface of the triangular extrusion frame 12 is in contact with the surface of the extrusion column frame 11, and the left side of the triangular extrusion frame 12 penetrates through the adjusting shell 4 and extends to the outside of the inner cavity of the adjusting shell 4.

[0025] By adopting the above scheme, when the triangular extrusion frame 12 moves, the extrusion column frame 11 can be extruded, and the extrusion column frame 11 subjected to the extrusion force can drive the adjusting clamp block 901 to move.

[0026] With reference to Figure 4 The left side of the adjusting shell 4 is fixedly connected with two square frames 13 used in cooperation with the triangular extrusion frame 12, and the surface of the square frame 13 is movably connected with the inner cavity of the triangular extrusion frame 12.

[0027] By adopting the above scheme, the triangular extrusion frame 12 is driven to move along the surface of the square frame 13 by pulling the triangular extrusion frame 12, and the square frame 13 limits the moving position of the triangular extrusion frame 12.

[0028] With reference to Figure 2 The surface of the adjusting column 3 is provided with adjusting clamping grooves 14 used in cooperation with the adjusting clamp block 901, the number of the adjusting clamping grooves 14 is several and they are uniformly distributed on the surface of the adjusting column 3, and the surface of the adjusting clamp block 901 is in contact with the inner cavity of the adjusting clamping groove 14.

[0029] By adopting the above scheme, when the triangular extrusion frame 12 is loosened after the adjusting shell 4 moves to a suitable height, the restoring force generated by the restoring of the spring 904 will drive the adjusting clamp block 901 to be clamped into the inner cavity of the adjusting clamping groove 14, and the cooperation of the adjusting clamp block 901 and the adjusting clamping groove 14 limits the height of the adjusting shell 4.

[0030] With reference to Figure 3 The moving device 10 comprises two moving clamp shells 1001, the opposite sides of the two moving clamp shells 1001 penetrate through the moving shell 6 and extend to the outside of the inner cavity of the moving shell 6, the opposite sides of the two moving clamp shells 1001 are fixedly connected with compression springs 1002, the inner cavity of the moving shell 6 is fixedly connected with two moving long rods 1003 used in cooperation with the moving clamp shell 1001, the surface of the moving long rod 1003 is movably connected with the inner cavity of the moving clamp shell 1001, the front side of the moving clamp shell 1001 is fixedly connected with two control plates 1004, and the front side of the control plate 1004 penetrates through the moving shell 6 and extends to the outside of the inner cavity of the moving shell 6.

[0031] With the above solution, by providing the moving device 10 , when the replaced evaporating flask 2 needs to be fixed by the fixed positioning ring 8 and the movable positioning ring 7 , the moving device 10 has an adjusting function on the position of the movable positioning ring 7 .

[0032] refer to Figure 2 The top and bottom of the inner cavity of the moving frame 5 are both provided with moving card slots 15 for use with the moving card shell 1001. The surface of the moving card shell 1001 is in contact with the inner cavity of the moving card slot 15. The number of the moving card slots 15 is several and evenly distributed at the top and bottom of the inner cavity of the moving frame 5.

[0033] The above solution is adopted: by setting a movable card slot 15, the control board 1004 is released when the movable shell 6 moves to the appropriate position, and the restoring force generated by the compression spring 1002 restoring its shape will drive the movable card shell 1001 to be stuck into the inner cavity of the movable card slot 15. The coordinated use of the movable card shell 1001 and the movable card slot 15 has a limiting effect on the position of the movable shell 6.

[0034] The working principle of this utility model:

[0035] During use, when the evaporating flask 2 used in the rotary evaporator 1 needs to be replaced conveniently, the user first pulls the control board 1004 toward the opposite side of the two control boards 1004. When the control board 1004 moves, it will drive the movable card shell 1001 to move along the surface of the movable long rod 1003. At the same time, the extrusion force generated by the movable card shell 1001 will cause the compression spring 1002 to produce elastic deformation. When the movable card shell 1001 is completely moved to the inner cavity of the movable shell 6, the movable shell 6 is pulled toward the side away from the evaporating flask 2. When the movable shell 6 moves, it will drive the movable positioning ring 7 moves, when the inner cavity of the movable positioning ring 7 is out of contact with the surface of the evaporating flask 2, the evaporating flask 2 can be taken down, and then the replaced evaporating flask 2 is placed in the inner cavity of the fixed positioning ring 8, and then the movable positioning ring 7 is moved to the position in contact with the surface of the evaporating flask 2, and then the control plate 1004 is released, and the restoring force generated by the compression spring 1002 restoring its shape will drive the movable card shell 1001 to be stuck in the inner cavity of the movable card slot 15. The coordinated use of the movable card shell 1001 and the movable card slot 15 has a limiting effect on the position of the movable positioning ring 7, and the fixed positioning ring 8 and the movable positioning ring 7 are in contact with the surface of the evaporating flask 2. The coordinated use of the ring 7 has a limiting effect on the position of the evaporating flask 2, and then the triangular extrusion frame 12 is pulled downward, driving the triangular extrusion frame 12 to move along the surface of the square frame 13. At the same time, the force generated by the movement of the triangular extrusion frame 12 will drive the extrusion column frame 11 to move to the left. When the extrusion column frame 11 moves, it will drive the adjustment block 901 to move to the left. When the adjustment block 901 moves, it will drive the moving column 902 to move along the inner cavity of the moving shell 903. At the same time, the force generated by the movement of the adjustment block 901 causes the spring 904 to undergo elastic deformation. When the adjustment block 901 moves, the spring 904 is deformed. When the block 901 is completely moved into the inner cavity of the adjustment shell 4, the adjustment shell 4 is moved upward or downward. When the adjustment shell 4 moves, the evaporating flask 2 is driven to move upward or downward. When the evaporating flask 2 moves to the appropriate position, the triangular extrusion frame 12 is released. The extrusion force generated by the spring 904 recovering its shape will drive the adjustment block 901 to be clamped into the inner cavity of the adjustment slot 14. The coordinated use of the adjustment block 901 and the adjustment slot 14 has a limiting effect on the position of the adjustment shell 4. At the same time, the evaporating flask 2 is positioned at an appropriate height. At this time, the evaporating flask 2 used in the rotary evaporator 1 is easily replaced.

[0036] In summary, the rotary evaporator with easy replacement of the evaporating flask, by providing the coordinated use of the adjustment device 9, the adjustment block 901, the movable column 902, the movable housing 903 and the spring 904, solves the problem that the existing evaporating flask is one of the core components of the rotary evaporator and can withstand working conditions under high temperature and vacuum environment. The evaporating flask 2 may age, wear or be damaged after long-term use. These problems may cause the sealing of the evaporating flask to decrease, affecting the accuracy of the experiment, and the evaporating flask needs to be positioned and replaced. Usually, the evaporating flask is replaced by adjusting the tightness of the clamp with bolts, which increases the complexity and time cost of replacement. In addition, the tightness of the bolts is difficult to control, and excessive tightening may easily cause damage to the flask body. However, the existing rotary evaporator does not have a component for convenient replacement of the evaporating flask.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary evaporator that is easy to replace an evaporating flask, comprising a rotary evaporator (1) and an evaporating flask (2), characterized in that: The rear side of the evaporating flask (2) is movably connected to the front side of the rotary evaporator (1); an adjusting column (3) is provided on the surface of the rotary evaporator (1); an adjusting shell (4) is movably connected to the surface of the adjusting column (3); a moving frame (5) is fixedly connected to the front side of the adjusting shell (4); an inner cavity of the moving frame (5) is movably connected to the moving shell (6); a moving positioning ring (7) is fixedly connected to the front side of the moving shell (6); a fixed positioning ring (8) used in conjunction with the moving positioning ring (7) is fixedly connected to the surface of the adjusting shell (4); opposite sides of the moving positioning ring (7) and the fixed positioning ring (8) are in contact with the surface of the evaporating flask (2); an adjusting device (9) is provided in the inner cavity of the adjusting shell (4); and a moving device (10) is provided in the inner cavity of the moving shell (6).

2. A rotary evaporator that is easy to replace the evaporating flask according to claim 1, characterized in that: The adjusting device (9) comprises an adjusting block (901), two movable columns (902) are fixedly connected to the left side of the adjusting block (901), a movable outer shell (903) used in conjunction with the movable columns (902) is fixedly connected to the inner cavity of the adjusting shell (4), the surface of the movable columns (902) is movably connected to the inner cavity of the movable outer shell (903), a spring (904) is fixedly connected to the surface of the movable outer shell (903), and the surface of the spring (904) is fixedly connected to the surface of the adjusting block (901).

3. A rotary evaporator with easy replacement of evaporating flask according to claim 2, characterized in that: The top of the adjustment block (901) is fixedly connected to an extrusion column frame (11), and the inner cavity of the adjustment shell (4) is movably connected to a triangular extrusion frame (12) used in conjunction with the extrusion column frame (11), the surface of the triangular extrusion frame (12) contacts the surface of the extrusion column frame (11), and the left side of the triangular extrusion frame (12) passes through the adjustment shell (4) and extends to the outside of the inner cavity of the adjustment shell (4).

4. A rotary evaporator with easy replacement of evaporating flask according to claim 3, characterized in that: Two square frames (13) used in conjunction with the triangular extrusion frame (12) are fixedly connected to the left side of the adjustment shell (4), and the surfaces of the square frames (13) are movably connected to the inner cavity of the triangular extrusion frame (12).

5. The rotary evaporator with easy replacement of evaporating flask according to claim 2, characterized in that: The surface of the adjusting column (3) is provided with an adjusting slot (14) for use with the adjusting block (901); the adjusting slots (14) are multiple in number and evenly distributed on the surface of the adjusting column (3); the surface of the adjusting block (901) contacts the inner cavity of the adjusting slot (14).

6. The rotary evaporator with easy replacement of evaporating flask according to claim 1, characterized in that: The mobile device (10) comprises two mobile jamming shells (1001), opposite sides of the two mobile jamming shells (1001) both penetrate the mobile shell (6) and extend to the outside of the inner cavity of the mobile shell (6), and the opposite sides of the two mobile jamming shells (1001) are fixedly connected with compression springs (1002), the inner cavity of the mobile shell (6) is fixedly connected with two mobile long rods (1003) used in conjunction with the mobile jamming shells (1001), the surface of the mobile long rods (1003) is movably connected to the inner cavity of the mobile jamming shell (1001), and the front side of the mobile jamming shell (1001) is fixedly connected with two control boards (1004), and the front side of the control board (1004) penetrates the mobile shell (6) and extends to the outside of the inner cavity of the mobile shell (6).

7. A rotary evaporator with easy replacement of evaporating flask according to claim 6, characterized in that: The top and bottom of the inner cavity of the movable frame (5) are both provided with movable card slots (15) for use with the movable card shell (1001), the surface of the movable card shell (1001) is in contact with the inner cavity of the movable card slot (15), and the number of the movable card slots (15) is several and evenly distributed on the top and bottom of the inner cavity of the movable frame (5).

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