Portable adjustable constant-temperature water bath kettle for synthesizing medical intermediates

Abstract

The invention relates to the technical field of water bath kettles, in particular to a portable adjustable constant-temperature water bath kettle for synthesis of medical intermediates, which comprises a shell unit and a placement unit, wherein the shell unit comprises a pot body, a cover plate is arranged at an opening of the pot body, two clamping plates are symmetrically and fixedly installed at the two ends of the cover plate, clamping grooves matched with the clamping plates are formed in the top face of the pot body, and four containing openings are formed in the top face of the cover plate; wherein the placement unit comprises fixed sleeves which are fixedly mounted at the positions, located on the side edges of the four placement openings, of the bottom face of the cover plate correspondingly, and folding annular cloth is arranged on the inner sides of the fixed sleeves. In the downward pressing process of the mounting frame, the rotating ring plate is driven to rotate through transmission of the gear and the bevel gear, the spring telescopic rod stretches out and pushes the push plate to make contact with the outer wall of the beaker, meanwhile, the folding ring cloth is stretched to block the gap between the beaker and the containing opening, it is guaranteed that heat is not prone to loss in the heating process, and the heating efficiency and effect are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water bath pots, and more specifically, to a portable adjustable constant temperature water bath pot for the synthesis of pharmaceutical intermediates. Background Art

[0002] A water bath pot is a commonly used laboratory device, mainly used for heating, dissolving, constant temperature reaction, distillation, concentration or drying of samples at a constant temperature. Its working principle is to heat the water in the container and use the constant temperature characteristic of water to provide a stable temperature environment for the samples.

[0003] After retrieval, a constant temperature water bath pot is disclosed according to the publication number CN210935042U. The key points of its technical solution are as follows: it includes a box body with an upward box opening, a cover plate for covering the box opening is provided on the box body, an opening is provided on the cover plate, and an end cover for covering the opening is provided. A storage box is provided on the box body, and a box cover for covering the box opening of the storage box is detachably connected to the storage box; this constant temperature water bath pot can store the removed end cover, making it not easy to lose. However, when actually used, the following deficiencies still exist: Combined with the relevant technical designs of existing water bath pots, the end cover, as an important part of the water bath pot, its structure is often assembled and spliced by multiple ring-shaped parts of different sizes. In order to meet the placement requirements of beakers of different specifications in the water bath pot and expand its application range. However, during actual use, when it is necessary to adapt to beakers of different sizes, the user needs to frequently disassemble and reassemble the ring-shaped parts on the end cover. Each time the beaker size is changed, it takes a certain amount of time. This process is not only cumbersome and time-consuming, but also frequent disassembly and assembly may cause problems such as loosening and wear at the connection of the ring-shaped parts, affecting the overall stability and sealing performance of the end cover.

[0004] Based on this, the present invention discloses a portable adjustable constant temperature water bath pot for the synthesis of pharmaceutical intermediates. Summary of the Invention

[0005] To solve the problems raised in the background art, the present invention provides a portable adjustable constant temperature water bath pot for the synthesis of pharmaceutical intermediates, which includes a housing unit and a placement unit; Among them, the housing unit includes a pot body, a cover plate is arranged at the opening of the pot body, two clamping plates are symmetrically and fixedly installed at both ends of the cover plate, a clamping groove adapted to the clamping plate is opened on the top surface of the pot body, and four placement openings are opened on the top surface of the cover plate; Among them, the placement unit includes fixing sleeves respectively and fixedly installed at the side positions of the bottom surface of the cover plate at the four placement openings. A folding loop cloth is arranged inside the fixing sleeves. At the side positions of the top surface of the cover plate at the placement openings, two installation sleeves are symmetrically and fixedly installed. Above the two installation sleeves, there is a sealing plate; Among them, a driving component for driving the folding loop cloth is arranged on the fixing sleeve, and a sealing component is arranged on the two installation sleeves; Among them, four groups of lifting components corresponding to the placement openings are arranged on the inner bottom surface of the pot body; As a further improvement of this technical solution, the driving component includes a rotating ring plate rotatably installed at the bottom end of the fixing sleeve. Four arc-shaped openings distributed in an annular array are formed on the top surface of the rotating ring plate. Four guiding sleeves distributed in an annular array penetrate through the outer wall of the fixing sleeve. A spring telescopic rod is slidably installed on the inner wall of each of the four guiding sleeves. A push plate is fixedly installed at the telescopic end of the spring telescopic rod. A guide rod is fixedly installed on the outer wall of the spring telescopic rod, and the guide rod is slidably connected to the inner wall of the arc-shaped opening. The inner wall of the folding loop cloth is fixedly connected to the side surfaces of the four push plates.

[0006] As a further improvement of this technical solution, the guide rod is fixedly installed at the fixed end of the spring telescopic rod, and the push plate is arc-shaped.

[0007] As a further improvement of this technical solution, the sealing component includes lifting rods respectively slidably installed on the inner walls of the two installation sleeves. An installation frame is fixedly installed at the top ends of the two lifting rods. The installation frame is U-shaped. The sealing plate is rotatably installed on the inner wall of the installation frame through a rotating shaft. A support spring I is sleeved on the lifting rod, and the two ends of the support spring I are respectively fixedly connected to the installation frame and the installation sleeve. A lapping plate is fixedly installed at the end of the sealing plate far from the rotating shaft. Two inserting rods corresponding to the lapping plate penetrate through the side surface of the installation frame symmetrically. A reset spring is sleeved on the inserting rod, and the two ends of the reset spring are respectively fixedly connected to the inserting rod and the installation frame. A linkage structure is arranged between one of the two lifting rods and the rotating ring plate.

[0008] As a further improvement of this technical solution, a sealing gasket is arranged on the bottom surface of the sealing plate, and a lapping groove corresponding to the lapping plate is formed on the inner wall of the installation frame.

[0009] As a further improvement of this technical solution, the linkage structure includes a driven bevel gear rotatably installed on the outer wall of the fixing sleeve through a rotating rod. A transmission gear is fixedly installed at the end of the rotating rod. A driving rack meshing with the transmission gear is fixedly installed at the bottom end of the lifting rod. A driven bevel gear ring meshing with the driven bevel gear is fixedly sleeved on the outer wall of the rotating ring plate. A limiting mechanism is arranged on the driven bevel gear ring.

[0010] As a further improvement of the technical solution, the limiting mechanism includes a shaft rod rotatably installed on the bottom surface of the cover plate, and the top end of the shaft rod passes through the top surface of the cover plate. A ratchet pawl is fixedly installed at the bottom end of the shaft rod. A ratchet wheel ring engaged with the ratchet pawl is fixedly sleeved on the outer wall of the driven bevel gear ring. A torsion spring is sleeved on the shaft rod, and both ends of the torsion spring are fixedly connected to the shaft rod and the cover plate respectively.

[0011] As a further improvement of the technical solution, the lifting assembly includes two support rods fixedly installed on the inner bottom surface of the pot body. A lifting frame is slidably installed on the two support rods. A second support spring is fixedly installed on the top surface of the lifting frame. A pressing plate is fixedly installed at the top end of the second support spring. A third support spring is fixedly installed between the bottom surface of the lifting frame and the inner bottom surface of the pot body. A sliding frame is fixedly installed on the side surface of the lifting frame. A guiding groove corresponding to the sliding frame is opened on the inner wall of the pot body. A locking structure is arranged inside the lifting frame.

[0012] As a further improvement of the technical solution, the locking structure includes inner cavities symmetrically opened inside the lifting frame and communicated with the sliding frame. A transmission plate is slidably installed on the inner wall of the inner cavity. A transmission port is opened at one end of the transmission plate away from the sliding frame. A pressing frame adapted to the transmission port is arranged through the top surface of the lifting frame, and the top surface of the pressing frame is fixedly connected to the bottom surface of the pressing plate. A fourth support spring is fixedly installed between one ends of the two transmission plates located inside the sliding frame and the side surface of the lifting frame. Limiting plates are arranged through both side surfaces of the sliding frame. Top plates adapted to the limiting plates are fixedly installed at the ends of the two transmission plates.

[0013] As a further improvement of the technical solution, the opposite side surfaces of the transmission port and the pressing frame are both arranged as inclined surfaces, and the cross-sectional shape of the top plate is an isosceles trapezoid.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this portable adjustable constant temperature water bath for the synthesis of pharmaceutical intermediates, by setting the lifting frame and the sliding frame, when storing, the cover plate is inverted and the installation frame is retracted, significantly reducing the volume and facilitating carrying. When in use, through the unique structure of the pressing plate, the transmission plate and the limiting plate, the height of the lifting frame can be easily and flexibly adjusted to adapt to beakers of different heights. The operation is simple and the stability after adjustment is strong, meeting the diverse experimental requirements.

[0015] 2. In this portable adjustable constant temperature water bath for the synthesis of pharmaceutical intermediates, by setting the folding annular cloth and the push plate, during the downward pressing of the installation frame, through the transmission of the gear and the bevel gear, the rotating annular plate is driven to rotate, so that the spring telescopic rod extends and pushes the push plate to contact the outer wall of the beaker, and at the same time stretches the folding annular cloth to block the gap between the beaker and the placing port, ensuring that heat is not easily dissipated during the heating process, effectively improving the heating efficiency and effect.

[0016] 3. In the portable adjustable constant temperature water bath for synthesizing a pharmaceutical intermediate, by setting up the mounting frame and the sealing plate, and utilizing the one-way locking characteristics of the ratchet ring and the ratchet pawl, after the lifting rod is pressed down in place, the positions of the mounting frame and the sealing plate can be stably fixed, ensuring that the opening of the beaker is sealed during heating to avoid being affected by the outside world. And after the experiment is over, just rotate the shaft rod to separate the ratchet pawl from the ratchet ring, then the fixation can be easily released, facilitating the removal of the beaker, and the operation process is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the structural schematic diagram of the cover plate of the present invention Figure 1 ; Figure 3 is Figure 1 the enlarged structural schematic diagram at A in Figure 4 is the structural schematic diagram of the cover plate of the present invention Figure 2 ; Figure 5 is Figure 4 the enlarged structural schematic diagram at B in Figure 6 is the structural schematic diagram of the fixed sleeve of the present invention; Figure 7 is Figure 6 the enlarged structural schematic diagram at C in Figure 8 is the structural schematic diagram of the pot body of the present invention; Figure 9 is the structural schematic diagram of the lifting frame of the present invention; Figure 10 is the structural schematic diagram of the partial section of the lifting frame of the present invention; Figure 11 is the structural schematic diagram of the sliding frame of the present invention.

[0018] The meanings of each label in the figure are as follows: 11. Pot body; 12. Cover plate; 13. Clamping plate; 14. Card slot; 15. Placement opening; 21. Fixed sleeve; 22. Rotating ring plate; 23. Arc-shaped opening; 24. Guide sleeve; 25. Spring telescopic rod; 26. Push plate; 27. Guide rod; 28. Folding ring cloth; 31. Installation sleeve; 32. Lifting rod; 33. Installation frame; 34. Support spring one; 35. Sealing plate; 36. Lapping plate; 37. Insert rod; 38. Return spring; 41. Driven bevel gear; 42. Transmission gear; 43. Driving rack; 44. Driven bevel gear ring; 45. Shaft rod; 46. Pawl; 47. Ratchet ring; 48. Torsion spring; 51. Support rod; 52. Lifting frame; 53. Support spring two; 54. Pressure plate; 55. Support spring three; 56. Sliding frame; 57. Guide groove; 61. Inner cavity; 62. Transmission plate; 63. Transmission opening; 64. Pressing frame; 65. Support spring four; 66. Limiting plate; 67. Top plate. Detailed implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Refer to Figure 1 , Figure 2 , Figure 4 , Figure 6 , a portable adjustable constant temperature water bath for the synthesis of pharmaceutical intermediates, which includes a housing unit and a placement unit; The housing unit includes a pot body 11. A cover plate 12 is provided at the opening of the pot body 11. Two clamping plates 13 are symmetrically and fixedly installed at both ends of the cover plate 12. A card slot 14 adapted to the clamping plate 13 is opened on the top surface of the pot body 11. Four placement openings 15 are opened on the top surface of the cover plate 12; The placement unit includes fixed sleeves 21 respectively fixedly installed on the bottom surface of the cover plate 12 at positions on the sides of the four placement openings 15. A folding ring cloth 28 is arranged inside the fixed sleeve 21. Two installation sleeves 31 are symmetrically and fixedly installed on the top surface of the cover plate 12 at positions on the sides of the placement openings 15. A sealing plate 35 is arranged above the two installation sleeves 31. A sealing gasket is arranged on the bottom surface of the sealing plate 35; A driving assembly for driving the folding annular cloth 28 is arranged on the fixed sleeve 21. The driving assembly includes a rotating ring plate 22 rotatably mounted at the bottom end of the fixed sleeve 21. Four arc-shaped openings 23 distributed in an annular array are formed on the top surface of the rotating ring plate 22. Four guiding sleeves 24 distributed in an annular array penetrate through the outer wall of the fixed sleeve 21. Spring telescopic rods 25 are slidably mounted on the inner walls of the four guiding sleeves 24. A push plate 26 is fixedly mounted at the telescopic end of the spring telescopic rod 25. The push plate 26 is arc-shaped. A guide rod 27 is fixedly mounted on the outer wall of the spring telescopic rod 25. The guide rod 27 is fixedly mounted at the fixed end of the spring telescopic rod 25, and the guide rod 27 is slidably connected with the inner wall of the arc-shaped opening 23. The inner wall of the folding annular cloth 28 is fixedly connected with the sides of the four push plates 26; In the storage state, the cover plate 12 is in an inverted state, and the components on the top surface of the cover plate 12 can be located inside the pot body 11 to reduce the volume for carrying. In the use state, the cover plate 12 can be flipped and fixed by the clamping plate 13 and the clamping groove 14; when the rotating ring plate 22 rotates, since the spring telescopic rod 25 is slidably connected with the guiding sleeve 24 and is slidably connected with the arc-shaped opening 23 through the guide rod 27, when the rotating ring plate 22 drives the arc-shaped opening 23 to rotate, the position of the spring telescopic rod 25 can be adjusted, so that the spring telescopic rod 25 extends out of the guiding sleeve 24 and contacts the outer wall of the beaker through the push plate 26. After the push plate 26 contacts the outer wall of the beaker, the spring telescopic rod 25 can be shortened to ensure the fixed position of the push plate 26. When the push plate 26 moves, the folding annular cloth 28 can be stretched to block the gap between the beaker and the placing opening 15 for efficient heating.

[0021] Refer to Figure 2 、 Figure 3 、 Figure 5 、 Figure 7 A sealing assembly is arranged on the two mounting sleeves 31. The sealing assembly includes lifting rods 32 slidably mounted on the inner walls of the two mounting sleeves 31 respectively. An installation frame 33 is fixedly mounted at the top ends of the two lifting rods 32. The installation frame 33 is U-shaped. A sealing plate 35 is rotatably mounted on the inner wall of the installation frame 33 through a rotating shaft. A first support spring 34 is sleeved on the lifting rod 32, and the two ends of the first support spring 34 are respectively fixedly connected with the installation frame 33 and the mounting sleeve 31. A lapping plate 36 is fixedly mounted at the end of the sealing plate 35 away from the rotating shaft. A lapping groove corresponding to the lapping plate 36 is formed on the inner wall of the installation frame 33. Two inserting rods 37 corresponding to the lapping plate 36 penetrate through the side surface of the installation frame 33 symmetrically. A return spring 38 is sleeved on the inserting rod 37, and the two ends of the return spring 38 are respectively fixedly connected with the inserting rod 37 and the installation frame 33. A linkage structure is arranged between one of the two lifting rods 32 and the rotating ring plate 22; The linkage structure includes a driven bevel gear 41 rotatably mounted on the outer wall of the fixed sleeve 21 through a rotating rod. A transmission gear 42 is fixedly installed at the end of the rotating rod. A driving rack 43 meshing with the transmission gear 42 is fixedly installed at the bottom end of the lifting rod 32. A driven bevel gear ring 44 meshing with the driven bevel gear 41 is fixedly sleeved on the outer wall of the rotating ring plate 22. A limiting mechanism is arranged on the driven bevel gear ring 44; The staff can place the beaker in the placement opening 15 on the cover plate 12. After the placement is completed, pull the two insertion rods 37 so that the insertion rods 37 move out of the lapping groove, and then rotate the sealing plate 35 so that the lapping plate 36 on the side of the sealing plate 35 enters the lapping groove. Then release the insertion rods 37. Under the action of the return spring 38, the insertion rods 37 can slide reversely to limit the lapping plate 36 in the lapping groove, and the sealing plate 35 can be in a horizontal state. At this time, the installation frame 33 can be pressed downward, driving the lifting rod 32 to slide downward along the installation sleeve 31. During the sliding process of the lifting rod 32, the driving rack 43 can be driven to move synchronously. The driving rack 43 meshes with the transmission gear 42, and then the transmission gear 42 and the driven bevel gear 41 can be driven to rotate. The driven bevel gear 41 meshes with the driven bevel gear ring 44 on the outer wall of the rotating ring plate 22, and then the rotating ring plate 22 can be driven to rotate. When the bottom surface of the sealing plate 35 fits the opening of the beaker, the pressing of the sealing plate 35 can be stopped.

[0022] Refer to Figure 7 As shown in the figure, the limiting mechanism includes a shaft rod 45 rotatably installed on the bottom surface of the cover plate 12, and the top end of the shaft rod 45 passes through the top surface of the cover plate 12. A pawl 46 is fixedly installed at the bottom end of the shaft rod 45. A ratchet ring 47 meshing with the pawl 46 is fixedly sleeved on the outer wall of the driven bevel gear ring 44. A torsion spring 48 is sleeved on the shaft rod 45, and the two ends of the torsion spring 48 are fixedly connected to the shaft rod 45 and the cover plate 12 respectively; During the process of the lifting rod 32 driving the rotating ring plate 22, this rotation direction is the free state of the ratchet ring 47 and the pawl 46. Therefore, the rotating ring plate 22 can rotate. However, under the action of the first support spring 34, the lifting rod 32 has a reaction force to slide upward, but this reaction force direction is the reverse rotation direction of the ratchet ring 47, which is the locking state of the ratchet ring 47 and the pawl 46. Therefore, the positions of the installation frame 33 and the sealing plate 35 can be fixed, and the sealing plate 35 can block the opening of the beaker. After the pot body 11 is used up, the staff can rotate the shaft rod 45 to drive the pawl 46 to rotate and separate from the ratchet ring 47, thus releasing the limit on the ratchet ring 47. Under the action of the first support spring 34, the lifting rod 32 can move upward, driving the rotating ring plate 22 to reverse, and the push plate 26 to reset. Then the sealing plate 35 can be opened to the vertical state, and the beaker after heating can be quickly taken out.

[0023] Refer to Figures 8 - 11, four sets of lifting components corresponding to the placement ports 15 are arranged on the inner bottom surface of the pot body 11. The lifting components include two support rods 51 fixedly installed on the inner bottom surface of the pot body 11. A lifting frame 52 is slidably installed on the two support rods 51. A second support spring 53 is fixedly installed on the top surface of the lifting frame 52. The top end of the second support spring 53 is fixedly installed with a pressure plate 54. A third support spring 55 is fixedly installed between the bottom surface of the lifting frame 52 and the inner bottom surface of the pot body 11. A sliding frame 56 is fixedly installed on the side surface of the lifting frame 52. A guiding groove 57 corresponding to the sliding frame 56 is formed on the inner wall of the pot body 11. A locking structure is arranged inside the lifting frame 52; The locking structure includes an inner cavity 61 symmetrically formed inside the lifting frame 52 and communicating with the sliding frame 56. A transmission plate 62 is slidably installed on the inner wall of the inner cavity 61. A transmission port 63 is formed at one end of the transmission plate 62 away from the sliding frame 56. A pressure frame 64 adapted to the transmission port 63 is arranged through the top surface of the lifting frame 52. The opposite side surfaces of the transmission port 63 and the pressure frame 64 are both inclined surfaces, and the top surface of the pressure frame 64 is fixedly connected to the bottom surface of the pressure plate 54. A fourth support spring 65 is fixedly installed between one end of the two transmission plates 62 located inside the sliding frame 56 and the side surface of the lifting frame 52. Limiting plates 66 are arranged through both side surfaces of the sliding frame 56. The end parts of the two transmission plates 62 are both fixedly installed with top plates 67 adapted to the limiting plates 66. The cross-sectional shape of the top plate 67 is an isosceles trapezoid; The staff can adjust the height of the lifting frame 52 according to the height of the beaker to be used. During adjustment, the pressure plate 54 can be pressed downward. When the pressure plate 54 moves downward, it can drive the transmission port 63 on the transmission plate 62 through the inclined surface of the pressure frame 64, so that the transmission plate 62 can slide along the inner cavity 61. The transmission plate 62 can slide in a direction away from the sliding frame 56 and compress the fourth support spring 65. When the transmission plate 62 slides, it can synchronously drive the top plate 67 to slide, so that the top plate 67 is separated from the limiting plate 66 on the side surface of the sliding frame 56. The limiting plate 66 loses support and the top driving force against the inner wall of the guiding groove 57. At this time, the pressure plate 54 can be kept pressed down and the lifting frame 52 can be driven to slide up and down along the guiding groove 57 through the sliding frame 56 to realize the adjustment of the height of the lifting frame 52 to adapt to beakers of different heights for use. After the adjustment is completed, the lifting frame 52 can be fixed and the pressure plate 54 can be released. When the pressure plate 54 is released, under the elastic force of the second support spring 53, the pressure plate 54 can move upward relative to the lifting frame 52 and drive the pressure frame 64 to move. When the pressure frame 64 moves, under the action of the fourth support spring 65, the transmission plate 62 can slide in the reverse direction and drive the top plate 67 to support the limiting plate 66, so that the limiting plate 66 abuts tightly against the inner wall of the guiding groove 57, thereby realizing the limitation of the sliding frame 56 and the lifting frame 52 and ensuring the stable use of the lifting frame 52.

[0024] The specific working principle of the present invention is as follows: In use, in the storage state, the cover plate 12 is in an inverted state, and the mounting frame 33 and the like are located inside the pot body 11 to reduce the volume for carrying. In the use state, the cover plate 12 can be flipped and fixed by the clamping plate 13 and the clamping groove 14. At the same time, the sealing plate 35 is in a vertical state, exposing the mounting frame 33. At this time, the staff can adjust the height of the lifting frame 52 according to the height of the beaker to be used. When adjusting, the pressing plate 54 can be pressed downward. When the pressing plate 54 moves downward, it can drive the transmission port 63 on the transmission plate 62 through the inclined surface of the pressing frame 64, so that the transmission plate 62 can slide along the inner cavity 61. The transmission plate 62 can slide in a direction away from the sliding frame 56 and compress the support spring four 65. When the transmission plate 62 slides, it can synchronously drive the top plate 67 to slide, so that the top plate 67 is separated from the limiting plate 66 on the side of the sliding frame 56. The limiting plate 66 loses support and the top driving force against the inner wall of the guiding groove 57. At this time, the pressing plate 54 can be kept pressed down and the lifting frame 52 can be driven to slide up and down along the guiding groove 57 through the sliding frame 56 to adjust the height of the lifting frame 52 to adapt to beakers of different heights for use. After the adjustment is completed, the lifting frame 52 can be fixed and the pressing plate 54 can be released. When the pressing plate 54 is released, under the elastic force of the support spring two 53, the pressing plate 54 can move upward relative to the lifting frame 52 and drive the pressing frame 64 to move. When the pressing frame 64 moves, under the action of the support spring four 65, the transmission plate 62 can slide in the reverse direction and drive the top plate 67 to support the limiting plate 66, so that the limiting plate 66 is pressed tightly against the inner wall of the guiding groove 57, thereby realizing the limitation of the sliding frame 56 and the lifting frame 52 and ensuring the stable use of the lifting frame 52; Subsequently, the staff can place the beaker in the placement opening 15 on the cover plate 12, and the bottom surface of the beaker contacts the top surface of the lifting frame 52. After the placement is completed, pull the two insertion rods 37 so that the insertion rods 37 move out of the lapping groove, and then rotate the sealing plate 35 so that the lapping plate 36 on the side of the sealing plate 35 enters the lapping groove. Then, release the insertion rods 37. Under the action of the return spring 38, the insertion rods 37 can slide reversely to limit the lapping plate 36 in the lapping groove, and the sealing plate 35 can be in a horizontal state. At this time, the installation frame 33 can be pressed downward, driving the lifting rod 32 to slide downward along the installation sleeve 31. During the sliding process of the lifting rod 32, the driving rack 43 can be driven to move synchronously. The driving rack 43 meshes with the transmission gear 42, and then the transmission gear 42 and the driven bevel gear 41 can be driven to rotate. The driven bevel gear 41 meshes with the driven bevel gear ring 44 on the outer wall of the rotating ring plate 22, and then the rotating ring plate 22 can be driven to rotate. Since the spring telescopic rod 25 is slidably connected with the guide sleeve 24 and is slidably connected with the arc-shaped opening 23 through the guide rod 27, when the rotating ring plate 22 drives the arc-shaped opening 23 to rotate, the position of the spring telescopic rod 25 can be adjusted, so that the spring telescopic rod 25 extends out of the guide sleeve 24 and contacts the outer wall of the beaker through the push plate 26. As the lifting rod 32 continues to slide, after the push plate 26 contacts the outer wall of the beaker, the spring telescopic rod 25 can be shortened to ensure the fixed position of the push plate 26. When the push plate 26 moves, the folding ring cloth 28 can be stretched to seal the gap between the beaker and the placement opening 15 for efficient heating. When the bottom surface of the sealing plate 35 fits the opening of the beaker, the pressing of the sealing plate 35 can be stopped; During the process of the lifting rod 32 driving the rotating ring plate 22, this rotation direction is the free state of the ratchet ring 47 and the ratchet pawl 46. Therefore, the rotating ring plate 22 can rotate. Under the action of the first supporting spring 34, the lifting rod 32 has a reaction force to slide upward, but the direction of this reaction force is the reverse rotation direction of the ratchet ring 47, and this direction is the locking state of the ratchet ring 47 and the ratchet pawl 46. Therefore, the positions of the installation frame 33 and the sealing plate 35 can be fixed, and the sealing plate 35 can seal the opening of the beaker. After the pot body 11 is used up, the staff can rotate the shaft rod 45 to drive the ratchet pawl 46 to rotate and separate from the ratchet ring 47, thus releasing the limit on the ratchet ring 47. Under the action of the first supporting spring 34, the lifting rod 32 can move upward, driving the rotating ring plate 22 to rotate reversely and the push plate 26 to reset. Then, the sealing plate 35 can be opened to a vertical state, and the beaker after heating can be quickly taken out.

[0025] 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 order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are 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.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can 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 portable adjustable constant temperature water bath for synthesis of pharmaceutical intermediates, characterized in that: It includes a housing unit and a placement unit; The housing unit comprises a pot body (11), a cover plate (12) is arranged at the opening of the pot body (11), two clamping plates (13) are symmetrically fixedly mounted at both ends of the cover plate (12), a clamping groove (14) adapted to the clamping plate (13) is provided on the top surface of the pot body (11), and four placement openings (15) are provided on the top surface of the cover plate (12); The placement unit comprises fixed sleeves (21) respectively fixedly mounted on the bottom surface of the cover plate (12) at the sides of the four placement openings (15), the inner side of the fixed sleeves (21) being provided with folded ring cloths (28), and the top surface of the cover plate (12) being symmetrically fixedly mounted at the sides of the placement openings (15), and a sealing plate (35) being provided above the two installation sleeves (31); The fixed sleeve (21) is provided with a driving assembly for driving the folding ring cloth (28), the two mounting sleeves (31) are provided with a sealing assembly, the sealing assembly comprises lifting rods (32) respectively slidably mounted on the inner walls of the two mounting sleeves (31), the top ends of the two lifting rods (32) are fixedly mounted with a mounting frame (33), the mounting frame (33) is U-shaped, the sealing plate (35) is rotatably mounted on the inner wall of the mounting frame (33) via a rotating shaft, the lifting rods (32) are sleeved with a supporting spring (34), and the two ends of the supporting spring (34) are respectively fixedly connected to the mounting frame (33) and the mounting sleeve (31), and the mounting frame (33) is provided with a pressing mechanism corresponding to the sealing plate (35); Wherein, the inner bottom surface of the pot body (11) is provided with four groups of lifting components corresponding to the placement openings (15).

2. The portable adjustable constant temperature water bath for synthesis of pharmaceutical intermediates according to claim 1, characterized in that: The driving assembly comprises a rotating ring plate (22) rotatably mounted on the bottom end of a fixed sleeve (21); the top surface of the rotating ring plate (22) is provided with four arc-shaped openings (23) distributed in an annular array; the outer wall of the fixed sleeve (21) is penetrated by four guide sleeves (24) distributed in an annular array; the inner walls of the four guide sleeves (24) are all slidably mounted with spring telescopic rods (25); the telescopic ends of the spring telescopic rods (25) are fixedly mounted with push plates (26); the outer walls of the spring telescopic rods (25) are fixedly mounted with guide rods (27); the guide rods (27) are slidably connected to the inner walls of the arc-shaped openings (23); the inner walls of the folding ring cloth (28) are fixedly connected to the side surfaces of the four push plates (26).

3. The portable adjustable constant temperature water bath for synthesizing pharmaceutical intermediates according to claim 2, characterized in that: The guide rod (27) is fixedly mounted on the fixed end of the spring telescopic rod (25), and the push plate (26) is arranged in an arc shape.

4. The portable adjustable constant temperature water bath for synthesis of pharmaceutical intermediates according to claim 2, characterized in that: The pressing mechanism comprises a lap plate (36) fixedly mounted on an end of the sealing plate (35) away from the rotating shaft, two insertion rods (37) corresponding to the lap plate (36) are symmetrically arranged on the side of the installation frame (33), a return spring (38) is sleeved on the insertion rod (37), and the two ends of the return spring (38) are respectively fixedly connected to the insertion rod (37) and the installation frame (33), and a linkage structure is arranged between one of the two lifting rods (32) and the rotating ring plate (22).

5. The portable adjustable constant temperature water bath for synthesis of pharmaceutical intermediates according to claim 4, characterized in that: A sealing gasket is provided on the bottom surface of the sealing plate (35), and a lap groove corresponding to the lap plate (36) is provided on the inner wall of the installation frame (33).

6. The portable adjustable constant temperature water bath for synthesis of pharmaceutical intermediates according to claim 4, characterized in that: The linkage structure comprises a driven bevel gear (41) rotatably mounted on the outer wall of a fixed sleeve (21) via a rotating rod, a transmission gear (42) being fixedly mounted on the end of the rotating rod, a driving rack (43) meshing with the transmission gear (42) being fixedly mounted on the bottom end of the lifting rod (32), and a driven bevel gear ring (44) meshing with the driven bevel gear (41) being fixedly sleeved on the outer wall of the rotating ring plate (22), and a limiting mechanism being provided on the driven bevel gear ring (44).

7. The portable adjustable constant temperature water bath for synthesis of pharmaceutical intermediates according to claim 6, characterized in that: The limiting mechanism comprises a shaft (45) rotatably mounted on the bottom surface of the cover plate (12), the top end of the shaft (45) passing through the top surface of the cover plate (12), a pawl (46) fixedly mounted on the bottom end of the shaft (45), a ratchet ring (47) meshing with the pawl (46) fixedly sleeved on the outer wall of the driven bevel gear ring (44), a torsion spring (48) sleeved on the shaft (45), and two ends of the torsion spring (48) are respectively fixedly connected to the shaft (45) and the cover plate (12).

8. The portable adjustable constant temperature water bath for synthesis of pharmaceutical intermediates according to claim 1, characterized in that: The lifting assembly comprises two support rods (51) fixedly mounted on the inner bottom surface of the pot body (11); a lifting frame (52) is slidably mounted on the two support rods (51); a second support spring (53) is fixedly mounted on the top surface of the lifting frame (52); a pressure plate (54) is fixedly mounted on the top of the second support spring (53); a third support spring (55) is fixedly mounted between the bottom surface of the lifting frame (52) and the inner bottom surface of the pot body (11); a sliding frame (56) is fixedly mounted on the side surface of the lifting frame (52); a guide groove (57) corresponding to the sliding frame (56) is provided on the inner wall of the pot body (11); and a locking structure is provided on the inner side of the lifting frame (52).

9. The portable adjustable constant temperature water bath for synthesis of pharmaceutical intermediates according to claim 8, characterized in that: The locking structure comprises an inner cavity (61) symmetrically opened on the inner side of the lifting frame (52) and connected to the sliding frame (56); a transmission plate (62) is slidably installed on the inner wall of the inner cavity (61); a transmission opening (63) is opened at one end of the transmission plate (62) away from the sliding frame (56); a pressure frame (64) adapted to the transmission opening (63) is provided through the top surface of the lifting frame (52); and the top surface of the pressure frame (64) is fixedly connected to the bottom surface of the pressure plate (54); a support spring four (65) is fixedly installed between one end of the two transmission plates (62) located on the inner side of the sliding frame (56) and the side surface of the lifting frame (52); both side surfaces of the sliding frame (56) are penetrated by limit plates (66); and the ends of the two transmission plates (62) are fixedly installed with top plates (67) adapted to the limit plates (66).

10. The portable adjustable constant temperature water bath for synthesis of pharmaceutical intermediates according to claim 9, characterized in that: The side surfaces of the transmission opening (63) and the pressing frame (64) opposite to each other are both arranged as inclined surfaces, and the cross-sectional shape of the top plate (67) is an isosceles trapezoid.

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