Drying device for preparing norfloxacin

Abstract

The utility model discloses a drying device for norfloxacin preparation, which comprises a drying box, a rotary carding mechanism, an exhaust adjusting mechanism and a quick clamping mechanism, the rotary carding mechanism comprises a driving motor, a rotating shaft, a longitudinal partition plate, a transverse partition plate, a storage tray and a carding plate; the exhaust adjusting mechanism comprises an exhaust pipe, a supporting plate, an adjusting hole, a rotating plate, a clamping pipe, a clamping rod and a pressing spring, the rapid clamping mechanism comprises a threaded ring, a thrust bearing, an outer moving ring, an inner moving ring, a sliding block, a pressing spring frame and a side ring, a rotating shaft is driven by a driving motor to rotate, a carding plate can effectively turn over and card materials on a containing disc, and the material sorting efficiency is improved. Materials are evenly distributed, accumulation is avoided, it is ensured that hot air can make full contact with all parts of the materials, the drying effect is greatly improved, the exhaust adjusting mechanism adjusts the size of an outlet of an exhaust pipe through a rotating plate, it is ensured that moisture in the drying box can be exhausted in time, and it is avoided that the drying effect is reduced due to moisture retention.

Description

Technical Field

[0001] This utility model relates to the field of drug drying technology, and more specifically, to a drying device for the preparation of norfloxacin. Background Technology

[0002] Norfloxacin is a commonly used third-generation quinolone antibacterial drug. Drying is a key step in its preparation process to remove moisture and other volatile impurities, ensuring the stability and purity of the drug.

[0003] In existing technologies, firstly, some materials may accumulate in certain areas, leading to uneven drying or even incomplete drying. Because the materials are not effectively sorted and turned, hot air cannot evenly contact all parts of the materials, greatly reducing the drying speed and affecting overall production efficiency. Material accumulation may cause excessive friction or pressure on the internal structure of the drying chamber, which may lead to equipment damage or wear over time. Secondly, some moisture may not be discharged in time, resulting in humid air, which may affect the drying process and reduce the drying effect. It may also lead to inaccurate temperature and humidity control, further affecting the drying quality of the materials. If the exhaust is not done properly, hot air may be wasted, resulting in reduced heating efficiency and even increased energy consumption. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a drying device for the preparation of norfloxacin, so as to solve the technical problems mentioned in the background art, such as uneven drying effect and inability to adjust and discharge moisture in a timely manner.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a drying device for norfloxacin preparation, comprising a drying chamber, a rotary combing mechanism, an exhaust adjustment mechanism, and a quick-connecting mechanism. The rotary combing mechanism includes a drive motor, a rotating shaft, longitudinal partitions, transverse partitions, a storage tray, and a combing plate. The longitudinal partitions are longitudinally installed inside the drying chamber, multiple sets of transverse partitions are installed inside the drying chamber, the storage tray is installed on the top end face of the transverse partitions, the drive motor is installed at the bottom of the drying chamber, the rotating shaft is installed at the output end of the drive motor, and the other end of the rotating shaft extends into the interior of the drying chamber. The combing plate is installed on the rotating shaft and can comb the material in the storage tray. The exhaust adjustment mechanism includes an exhaust pipe, a support plate, adjustment holes, a rotating plate, a connecting pipe, a connecting rod, and a pressing spring. One end of the support plate is installed on the exhaust pipe, multiple sets of adjustment holes are provided on the support plate, one end of the rotating plate is rotatably installed on one end of the support plate, and the rotating plate can adjust the size of the exhaust pipe outlet. The pressing spring is installed on the top of the inner wall of the connecting pipe, and one end of the connecting rod extends into the connecting pipe to compress the pressing spring.

[0008] The present invention is further configured such that the quick-connect mechanism includes a threaded ring, a thrust bearing, an outer moving ring, an inner moving ring, a sliding block, a compression spring frame, and a side ring. The threaded ring is threadedly connected to the outer wall of the connecting tube. The outer and inner moving rings are directionally slidably disposed on the outer inner wall of the connecting tube and are linked to each other. The thrust bearing is disposed between the threaded ring and the outer moving ring. The sliding block is directionally slidably disposed on the inner wall of the connecting tube. The compression spring frame is mounted on the side of the sliding block, and the side ring is mounted on the side of the connecting rod. The compression spring frame can press against the bottom of the side ring, so that the connecting rod can stably extend into the connecting tube and maintain a stable connection.

[0009] The present invention is further configured such that a frame is installed at the bottom of the drying chamber, and a hot air blower is installed on one side of the top end of the frame. The hot air blower is installed on one side of the top end of the frame and sends hot air into the drying chamber through the hot air blower pipe to improve the drying efficiency.

[0010] The present invention is further configured such that a hot drum tube is installed at the output end of the hot drum machine, and the other end of the hot drum tube extends into the drying chamber and through the longitudinal partition. The output end of the hot drum tube is at the top end of the storage tray. The hot air is evenly delivered to the top end of the storage tray to ensure that the material is heated evenly and to improve the drying effect.

[0011] The present invention is further configured such that a side cover is provided at the side opening end of the drying oven, and an exhaust pipe is installed at one end of the side cover. The side cover is installed at the side opening end of the drying oven for easy operation and maintenance, and the exhaust pipe is installed at one end of the side cover to ensure exhaust effect.

[0012] The present invention is further configured such that a connecting plate is installed at the bottom of the side wall of the clamping tube, and the connecting plate is installed at the bottom of the adjustment hole. Multiple sets of adjustment holes are respectively connected to multiple sets of clamping tubes. The connecting plate is installed at the bottom of the side wall of the clamping tube and is connected to the adjustment hole, so as to ensure that the clamping rod can pass smoothly through the rotating plate and realize quick clamping.

[0013] The present invention is further configured such that one end of the locking rod can pass through the rotating plate, and the other end of the locking rod extends through different adjustment holes to cooperate with the locking tube for quick locking. The other end of the locking rod extends into the locking tube, and through the compression of the pressing spring, the locking rod can be stably extended into the locking tube and maintain a stable locking.

[0014] The present invention is further configured such that an inclined rail is installed on the inner wall of the clamping tube, and the sliding block slides inclinedly on the inclined rail. A return spring is installed between the sliding block and the top of the inner wall of the clamping tube, and the return spring provides a return force to the sliding block to ensure that the sliding block can quickly return to its original position when the clamping rod is released.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a drying device for the preparation of norfloxacin, which has the following beneficial effects:

[0017] This invention features a rotary combing mechanism. Driven by a motor, the rotating shaft rotates, and the combing plate effectively turns and combs the material on the tray, ensuring even distribution of the material, preventing accumulation, and ensuring that hot air can fully contact all parts of the material, thereby greatly improving the drying effect. The combing action prevents the material from clumping or sticking together, keeping the material loose, increasing the penetration of hot air, accelerating the evaporation of moisture, and further improving the drying efficiency.

[0018] This utility model is equipped with an exhaust adjustment mechanism. The exhaust adjustment mechanism adjusts the size of the exhaust pipe outlet by rotating a plate to ensure that the moisture in the drying chamber can be discharged in time, avoiding moisture retention that would reduce the drying effect and improve the operating economy of the equipment. According to different material characteristics and drying requirements, the airflow can be flexibly adjusted by adjusting the size of the exhaust pipe outlet to ensure a more precise and efficient drying process.

[0019] This invention features a quick-connect mechanism. Through the cooperation of components such as a threaded ring, sliding block, and compression spring, the quick-connect mechanism allows the connecting rod to quickly and stably extend into the connecting tube and secure it. Compared to traditional connection methods, this design is simple to operate and saves a significant amount of time. The compression spring presses against the side ring, ensuring the connecting rod is stably fixed within the connecting tube, preventing loosening or detachment, and guaranteeing the stability and safety of the device during operation. Operators can quickly separate and assemble the rotating plate and subsequent support plate, greatly improving equipment maintenance efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the drying oven in this utility model;

[0022] Figure 3 This is a schematic diagram of the exhaust adjustment mechanism in this utility model;

[0023] Figure 4 This is a schematic diagram of the quick-connect mechanism in this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the quick-connect mechanism in this utility model.

[0025] In the diagram: 1. Drying oven; 2. Drive motor; 3. Rotating shaft; 4. Longitudinal partition; 5. Transverse partition; 6. Storage tray; 7. Combing plate; 8. Exhaust pipe; 9. Support plate; 10. Adjustment hole; 11. Rotating plate; 12. Clip-on pipe; 13. Clip-on rod; 14. Pressing spring; 15. Threaded ring; 16. Thrust bearing; 17. Outer moving ring; 18. Inner moving ring; 19. Sliding block; 20. Compression spring frame; 21. Side ring; 22. Frame; 23. Heating drum machine; 24. Heating drum tube; 25. Side cover; 26. Connecting plate; 27. Inclined rail; 28. Return spring. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5A drying apparatus for the preparation of norfloxacin includes a drying chamber 1, a rotary combing mechanism, an exhaust adjustment mechanism, and a quick-connect mechanism. The rotary combing mechanism includes a drive motor 2, a rotating shaft 3, longitudinal partitions 4, transverse partitions 5, a storage tray 6, and a combing plate 7. The longitudinal partitions are longitudinally installed inside the drying chamber 1. Multiple sets of transverse partitions 5 are installed inside the drying chamber 1. The storage tray 6 is installed on the top end face of the transverse partitions 5. The drive motor 2 is installed at the bottom of the drying chamber 1. The rotating shaft 3 is installed at the output end of the drive motor 2, and the other end of the rotating shaft 3 extends into the interior of the drying chamber 1. The combing plate 7 is installed... Mounted on the rotating shaft 3, the combing plate 7 can comb the material in the storage tray 6. The exhaust adjustment mechanism includes an exhaust pipe 8, a support plate 9, an adjustment hole 10, a rotating plate 11, a clamping pipe 12, a clamping rod 13, and a pressing spring 14. The support plate 9 is installed on one end of the exhaust pipe 8. Multiple sets of adjustment holes 10 are set on the support plate 9. One end of the rotating plate 11 is rotatably installed on one end of the support plate 9. The rotating plate 11 can adjust the size of the exhaust pipe 8 outlet. The pressing spring 14 is installed on the top of the inner wall of the clamping pipe 12. One end of the clamping rod 13 extends into the clamping pipe 12 to compress the pressing spring 14.

[0030] In this embodiment, the drive motor 2 is installed at the bottom of the drying chamber 1. When started, the output end of the motor drives the rotating shaft 3 to rotate. The other end of the rotating shaft 3 extends into the interior of the drying chamber 1. As the drive motor 2 rotates, the rotating shaft 3 also begins to rotate. The carding plate 7 is installed on the rotating shaft 3. As the rotating shaft 3 rotates, the carding plate 7 begins to rotate on the tray 6. The tray 6 is installed on the top end face of the partition plate 5. During the rotation process, the carding plate 7 continuously cardes the norfloxacin material on the tray 6, making its distribution more uniform, thereby improving the drying effect. The support plate 9... Installed at one end of the exhaust pipe 8, multiple sets of adjustment holes 10 are set on the support plate 9. One end of the rotating plate 11 is rotatably installed at one end of the support plate 9. The angle of the rotating plate 11 can be adjusted manually, thereby adjusting the size of the exhaust pipe 8 outlet. One end of the locking rod 13 extends into the locking tube 12, compressing the pressing spring 14 to keep the locking rod 13 in the locking tube 12, ensuring a stable connection between the rotating plate 11 and the support plate 9. By adjusting the angle of the rotating plate 11, the size of the exhaust pipe 8 outlet can be controlled, thereby adjusting the air pressure and humidity in the drying chamber 1 to ensure the drying effect.

[0031] The quick-connect mechanism includes a threaded ring 15, a thrust bearing 16, an outer moving ring 17, an inner moving ring 18, a sliding block 19, a compression spring frame 20, and a side ring 21. The threaded ring 15 is threadedly connected to the outer wall of the connecting tube 12. The outer moving ring 17 and the inner moving ring 18 are directionally slidably disposed on the inner wall of the connecting tube 12. The outer moving ring 17 and the inner moving ring 18 are linked and slidably disposed. The thrust bearing 16 is disposed between the threaded ring 15 and the outer moving ring 17. The sliding block 19 is directionally slidably disposed on the inner wall of the connecting tube 12. The compression spring frame 20 is mounted on the side of the sliding block 19. The side ring 21 is mounted on the side of the connecting rod 13. The compression spring frame 20 can press against the bottom of the side ring 21, so that the connecting rod 13 can stably extend into the connecting tube 12 and maintain a stable connection.

[0032] In this embodiment, by rotating the threaded ring 15, the outer moving ring 17 and the inner moving ring 18 can be driven to slide directionally on the outer inner wall of the snap-fit ​​tube 12. As the outer moving ring 17 and the inner moving ring 18 slide, the sliding block 19 will also slide tilted on the inclined rail 27. The compression spring frame 20 is installed on the side of the sliding block 19, and the side ring 21 is installed on the side of the snap-fit ​​rod 13. As the sliding block 19 moves, the compression spring frame 20 will press against the bottom of the side ring 21, so that the snap-fit ​​rod 13 is stably inserted into the snap-fit ​​tube 12 and maintains a stable snap-fit. One end of the snap-fit ​​rod 13 can pass through the rotating plate 11, and the other end of the snap-fit ​​rod 13 can further extend through different adjustment holes 10 to cooperate with the snap-fit ​​tube 12 for quick snap-fit ​​setting, so that the rotating plate 11 and the support plate 9 are connected at different positions.

[0033] Please see Figures 1-5 As a supplementary embodiment of the drying device for norfloxacin preparation, which includes a rotary combing mechanism, an exhaust adjustment mechanism, and a quick-clamping mechanism: A frame 22 is installed at the bottom of the drying chamber 1, and a hot air blower 23 is installed on one side of the top end of the frame 22. A hot air blower pipe 24 is installed at the output end of the hot air blower 23, and the other end of the hot air blower pipe 24 extends into the drying chamber 1 and passes through the longitudinal partition 4. The output end of the hot air blower pipe 24 is at the top end of the storage tray 6. A side cover 25 is fitted to the side opening of the drying chamber 1, and an exhaust pipe 8 is installed on one side of the side cover 25. At the end of the clamping tube 12, a connecting plate 26 is installed at the bottom of the side wall, and the connecting plate 26 is installed at the bottom of the adjustment hole 10. Multiple sets of adjustment holes 10 are respectively connected to multiple sets of clamping tubes 12. One end of the clamping rod 13 can pass through the rotating plate 11, and the other end of the clamping rod 13 extends further through different adjustment holes 10 to cooperate with the clamping tube 12 for quick clamping. An inclined rail 27 is installed on the inner wall of the clamping tube 12, and the sliding block 19 slides inclinedly on the inclined rail 27. A return spring 28 is installed between the sliding block 19 and the top of the inner wall of the clamping tube 12.

[0034] More specifically, the drive motor 2 is started, and the output end of the motor drives the rotating shaft 3 to rotate. The combing plate 7 begins to rotate on the tray 6, uniformly combing the norfloxacin material. The hot blower 23 is installed on the bottom frame 22 of the drying chamber 1. The output end of the hot blower 23 sends hot air into the drying chamber 1 through the hot blower pipe 24. The hot air passes through the longitudinal partition 4 and finally reaches the top of the tray 6 to heat and dry the material. The angle of the rotating plate 11 is adjusted manually to control the size of the exhaust pipe 8 outlet, thereby adjusting the air pressure and humidity in the drying chamber 1 to ensure the drying effect. By rotating the threaded ring 15, the outer moving ring 17 and the inner moving ring 18 slide. The sliding block 19 slides at an angle on the inclined rail 27. The compression spring frame 20 presses against the side ring 21, so that the snap-fit ​​rod 13 is stably extended into the snap-fit ​​pipe 12, connecting the rotating plate 11 to the support plate 9 at different positions. Under the uniform combing of the combing plate 7 and the heating effect of the hot air, the norfloxacin material gradually dries. During the drying process, the air pressure and humidity inside the drying chamber 1 are controlled by adjusting the size of the exhaust pipe 8 to ensure the drying effect. After drying is completed, the drive motor 2 and the hot drum 23 are turned off, the side cover 25 is opened, and the dried norfloxacin material is taken out.

[0035] In summary, during the use or operation of the overall equipment: When the rotating combing mechanism needs to be operated, the drive motor 2 is installed at the bottom of the drying chamber 1. After startup, the output end of the motor drives the rotating shaft 3 to rotate. The other end of the rotating shaft 3 extends into the interior of the drying chamber 1. As the drive motor 2 rotates, the rotating shaft 3 also begins to rotate. The combing plate 7 is installed on the rotating shaft 3. As the rotating shaft 3 rotates, the combing plate 7 begins to rotate on the placement tray 6. The placement tray 6 is installed on the top end face of the transverse partition 5. During the rotation process, the combing plate 7 will continuously comb the norfloxacin material on the placement tray 6, making its distribution more uniform, thereby improving the drying effect.

[0036] When the exhaust adjustment mechanism is in operation, the support plate 9 is installed at one end of the exhaust pipe 8, and multiple sets of adjustment holes 10 are set on the support plate 9. One end of the rotating plate 11 is rotatably installed at one end of the support plate 9. The angle of the rotating plate 11 can be adjusted manually to adjust the size of the exhaust pipe 8 outlet. One end of the locking rod 13 extends into the locking tube 12 and compresses the pressing spring 14 to keep the locking rod 13 in the locking tube 12, ensuring a stable connection between the rotating plate 11 and the support plate 9. By adjusting the angle of the rotating plate 11, the size of the exhaust pipe 8 outlet can be controlled, thereby adjusting the air pressure and humidity in the drying chamber 1 to ensure the drying effect.

[0037] When the quick-connect mechanism is in operation, rotating the threaded ring 15 can drive the outer moving ring 17 and the inner moving ring 18 to slide directionally on the outer inner wall of the snap-connect tube 12. As the outer moving ring 17 and the inner moving ring 18 slide, the sliding block 19 will also slide tilted on the inclined rail 27. The compression spring frame 20 is installed on the side of the sliding block 19, and the side ring 21 is installed on the side of the snap-connect rod 13. As the sliding block 19 moves, the compression spring frame 20 will press against the bottom of the side ring 21, so that the snap-connect rod 13 is stably inserted into the snap-connect tube 12 and maintains a stable snap-connection. One end of the snap-connect rod 13 can pass through the rotating plate 11, and the other end of the snap-connect rod 13 can further extend through different adjustment holes 10 to cooperate with the snap-connect tube 12 for quick snap-connection, so that the rotating plate 11 and the support plate 9 are connected at different positions.

[0038] Start the drive motor 2. The output end of the motor drives the rotating shaft 3 to rotate. The combing plate 7 starts to rotate on the tray 6 to comb the norfloxacin material evenly. The hot blower 23 is installed on the bottom frame 22 of the drying chamber 1. The output end of the hot blower 23 sends hot air into the drying chamber 1 through the hot blow pipe 24. The hot air passes through the longitudinal partition 4 and finally reaches the top of the tray 6 to heat and dry the material. The angle of the rotating plate 11 is adjusted manually to control the size of the exhaust pipe 8 outlet and adjust the air pressure and humidity in the drying chamber 1 to ensure the drying effect. By rotating the threaded ring 15, the outer moving ring 17 and the inner moving ring 18 slide. The sliding block 19 slides on the inclined rail 27. The compression spring frame 20 presses against the side ring 21, so that the clamping rod 13 is stably extended into the clamping pipe 12, so that the rotating plate 11 is connected to the support plate 9 at different positions. Under the action of the combing plate 7 and the heating of the hot air, the norfloxacin material is gradually dried. During the drying process, the air pressure and humidity inside the drying chamber 1 are controlled by adjusting the size of the exhaust pipe 8 to ensure the drying effect. After drying is completed, the drive motor 2 and the hot drum 23 are turned off, the side cover 25 is opened, and the dried norfloxacin material is taken out.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A drying device for preparing norfloxacin, comprising a drying box (1), a rotating carding mechanism, an exhaust adjusting mechanism and a quick clamping mechanism, characterized in that: The rotating carding mechanism comprises a driving motor (2), a rotating shaft (3), a longitudinal partition plate (4), a transverse partition plate (5), a material placing disc (6) and a carding plate (7), the longitudinal partition plate is longitudinally installed in the interior of the drying box (1), a plurality of transverse partition plates (5) are installed in the drying box (1), the material placing disc (6) is installed on the top end face of the transverse partition plate (5), the driving motor (2) is installed at the bottom of the drying box (1), the rotating shaft (3) is installed at the output end of the driving motor (2), the other end of the rotating shaft (3) extends into the interior of the drying box (1), the carding plate (7) is installed on the rotating shaft (3), and the carding plate (7) can card the material on the material placing disc (6).

2. A drying apparatus for preparing norfloxacin according to claim 1, characterized in that: The exhaust adjusting mechanism comprises an exhaust pipe (8), a supporting plate (9), an adjusting hole (10), a rotating plate (11), a clamping pipe (12), a clamping rod (13) and a pressing spring (14), the supporting plate (9) is installed at one end of the exhaust pipe (8), a plurality of adjusting holes (10) are arranged on the supporting plate (9), one end of the rotating plate (11) is rotatably installed at one end of the supporting plate (9), the rotating plate (11) can adjust the size of the outlet of the exhaust pipe (8), and the pressing spring (14) is installed at the inner wall top end of the clamping pipe (12).

3. A drying apparatus for preparing norfloxacin according to claim 1, characterized in that: The quick clamping mechanism comprises a threaded ring (15), a thrust bearing (16), an outer moving ring (17), an inner moving ring (18), a sliding block (19), a pressing spring frame (20) and a side ring (21), the threaded ring (15) is threadedly connected to the outer wall of the clamping pipe (12), the outer moving ring (17) and the inner moving ring (18) are arranged in a sliding manner on the outer and inner walls of the clamping pipe (12), the outer moving ring (17) and the inner moving ring (18) are arranged in a sliding manner in linkage, the thrust bearing (16) is arranged between the threaded ring (15) and the outer moving ring (17), the sliding block (19) is arranged in a sliding manner on the inner wall of the clamping pipe (12), the pressing spring frame (20) is installed on the side of the sliding block (19), and the side ring (21) is installed on the side of the clamping rod (13).

4. A drying apparatus for preparing norfloxacin according to claim 3, characterized in that: A frame (22) is installed at the bottom end of the drying box (1), and a heat drum machine (23) is installed at one side of the top end of the frame (22).

5. The drying apparatus for preparing norfloxacin according to claim 1, characterized in that: A heat drum pipe (24) is installed at the output end of the heat drum machine (23), the other end of the heat drum pipe (24) extends into the drying box (1) and passes through the longitudinal partition plate (4), and the output end of the heat drum pipe (24) extends to the top end of the material placing disc (6).

6. A drying apparatus for preparing norfloxacin according to claim 1, characterized in that: A side cover (25) is arranged at the open end of the side of the drying box (1), and the exhaust pipe (8) is installed at one end of the side cover (25).

7. A drying apparatus for preparing norfloxacin according to claim 1, characterized in that: A connecting plate (26) is installed at the bottom end of the side wall of the clamping pipe (12), the connecting plate (26) is installed at the bottom of the adjusting hole (10), and a plurality of adjusting holes (10) are arranged in communication with a plurality of clamping pipes (12). One end of the clamping rod (13) can pass through the rotating plate (11), and the other end of the clamping rod (13) further extends through different adjusting holes (10) and is arranged in quick clamping connection with the clamping pipe (12).

8. A drying apparatus for preparing norfloxacin according to claim 2, characterized in that: The inner wall of the clamping pipe (12) is provided with an inclined rail (27), and the sliding block (19) is inclinedly slid on the inclined rail (27), and the sliding block (19) and the inner wall top of the clamping pipe (12) are provided with a reset spring (28).

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