A centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea

Abstract

This utility model discloses a centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea, including a centrifuge body and a first placement groove disposed at the upper inner position of the centrifuge body. When using the centrifuge, a test tube containing a mixture is first inserted into the placement groove. When the test tube enters the placement groove, multiple limiting sleeves on the inner side of the placement groove, made of rubber material, restrict the test tube. Then, a protective cover is installed on the upper outer side of the placement groove, and the protective pad inside the protective cover contacts the test tube. Since the protective pad is made of sponge material, it protects the test tube. When the motor body is working, it drives the turntable to rotate rapidly through the rotating shaft. Under the action of centrifugal force, rapid and efficient separation is achieved. Through the combined use of the protective cover, protective pad, placement groove and multiple limiting sleeves, the stability and protective performance of the test tube restriction are enhanced.

Description

Technical Field

[0001] This invention belongs to the field of drug synthesis technology, specifically relating to a centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea. Background Technology

[0002] The centrifuge used in the preparation of O-methyl-N-nitro-N'-methylisourea is a device that uses centrifugal force to separate different components in a mixture. It can achieve rapid and efficient separation based on the differences in density, particle size, etc. of the components in the material, under the action of centrifugal force generated by high-speed rotation. The centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea of ​​this invention is mainly composed of a support column, a protective cover, a centrifuge body, a cover plate, a turntable, a first placement slot, a control button, an LCD screen, a control button, a limiting sleeve, a placement tube, a mounting plate, a mounting slot, a motor body, a rotating shaft, a protective pad, a threaded column, a threaded hole, an annular locking block, an annular locking groove, a magnetic plate, a magnetic plate, a second placement slot, and a socket. Existing centrifuges for the preparation of O-methyl-N-nitro-N'-methylisourea suffer from poor quality due to the limitation and lack of protection of the test tubes. Therefore, a centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea is essential. Utility Model Content

[0003] The purpose of this invention is to provide a centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea, in order to solve the problem mentioned in the background art that the quality of the preparation is affected by the limitations of test tubes and poor protection when using existing centrifuges for the preparation of O-methyl-N-nitro-N'-methylisourea.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea, comprising...

[0005] The centrifuge body and the first placement slot disposed at the upper inner position of the centrifuge body;

[0006] An installation slot is provided inside the centrifuge body and below the first placement slot. A motor body is installed inside the installation slot. A rotating shaft is connected to the upper end of the motor body. A turntable is installed at the upper end of the rotating shaft and inside the first placement slot.

[0007] An insertion hole is provided at the upper inner position of the turntable, and a threaded hole is provided inside the turntable and below the insertion hole. A placement tube is installed inside the insertion hole, and a threaded post is connected inside the threaded hole and at the lower end of the placement tube.

[0008] An annular groove is provided on the inner wall of the placement tube, a magnetic plate is embedded in the inner wall of the annular groove, an annular block is installed on the inner side of the annular groove, a second placement groove is provided on the outer wall of the annular block, a magnetic plate is embedded in the interior of the second placement groove, and a limiting sleeve is connected to the inner side of the annular block and located on the inner side of the placement tube.

[0009] A protective cover is installed on the outside of the placement tube and at the upper end of the turntable, and a protective pad is installed on the top inner side of the protective cover.

[0010] The motor body is electrically connected to an external power source;

[0011] The combined use of the protective cover, protective pad, placement tube, and multiple limiting sleeves enhances the stability and protective performance of the test tube restriction. The combined use of the annular groove, annular block, magnetic plate, magnetic plate, snap-fit, and magnetic connection enhances the stability of the limiting sleeve installation and the ease of disassembly. The threaded post, threaded hole, and threaded connection further enhance the stability of the placement tube installation and the ease of disassembly.

[0012] Preferably, a mounting plate is connected to the upper end of the rotating shaft and located at the lower end of the turntable, and mounting holes are provided inside the mounting plate and around its perimeter.

[0013] Preferably, a connecting hole is provided inside the lower end of the turntable at a position corresponding to the mounting hole, and internal threads are provided on the inner walls of the mounting hole and the connecting hole.

[0014] Preferably, a fastening nut is installed inside the mounting hole and the connecting hole at the lower end of the mounting plate, and the fastening nut has an external thread on its outer wall.

[0015] Preferably, the fastening nut is connected to the mounting hole and the inner thread of the connecting hole via the external thread on the outer wall, thereby fixing the turntable to the upper end of the mounting plate, and further fixing the turntable to the upper end of the rotating shaft. The arrangement of the mounting plate, mounting hole, connecting hole, fastening nut and threaded connection enhances the stability and convenience of the connection between the turntable and the rotating shaft.

[0016] Preferably, a cover plate is installed at the rear of the centrifuge body, and an LCD screen and control buttons are provided at the front of the centrifuge body.

[0017] Preferably, a support column is provided at the lower end of the centrifuge body, and a total of four support columns are provided, which are welded to the four corners at the lower end of the centrifuge body.

[0018] Preferably, both the centrifuge body and the support column are made of stainless steel. The support column enhances the stability of the centrifuge body and the ease of handling.

[0019] Compared with the prior art, the present invention provides a centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea, which has the following beneficial effects:

[0020] This invention improves a centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea. When using the centrifuge, multiple limiting sleeves are first inserted into the ring grooves on the inner wall of the placement tube using annular locking blocks. When the annular locking blocks are inserted into the ring grooves, the magnetic plate on the outer wall of the annular locking blocks is attracted by the magnetic plate on the inner wall of the ring groove, thus installing the multiple limiting sleeves inside the placement tube. Next, the placement tube is connected to the threaded hole at the bottom of the insertion hole via a threaded post at its lower end, thus installing the placement tube inside the insertion hole. Then, a test tube containing the O-methyl-N-nitro-N'-methylisourea mixture is inserted into the placement tube. When the test tube enters the placement tube, the multiple limiting sleeves on the inner side of the placement tube, being made of rubber, restrict the test tube. Finally, a protective cap is connected to the placement tube via threads, thus securing the protective cap. The protective cover is installed on the upper part of the placement tube, ensuring that the protective pad inside the cover contacts the test tube. The protective pad, made of sponge material, protects the test tube. The motor body is then connected to an external power source. Starting the motor via a control button causes the turntable to rotate rapidly. Under centrifugal force, the solid particles in the mixture, due to their higher density, settle to the inner wall of the drum, forming a sediment layer, while the liquid remains inside the drum, forming a liquid ring layer. This achieves rapid and efficient separation. The combined use of the protective cover, protective pad, placement tube, and multiple limiting sleeves enhances the stability and protection of the test tube. The use of annular grooves, annular blocks, magnetic plates, magnetic plates, snap-fit ​​connections, and magnetic links improves the stability of the limiting sleeve installation and ease of disassembly. The threaded post, threaded hole, and threaded connection further enhance the stability of the placement tube installation and ease of disassembly. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the centrifuge used in the preparation of O-methyl-N-nitro-N'-methylisourea according to this invention.

[0022] Figure 2 This is a frontal sectional view of the centrifuge used in the preparation of O-methyl-N-nitro-N'-methylisourea according to this invention.

[0023] Figure 3 This is a magnified structural diagram of the centrifuge placement tube used in the preparation of O-methyl-N-nitro-N'-methylisourea according to this invention.

[0024] Figure 4 This is a magnified structural diagram of the centrifuge annular groove used in the preparation of O-methyl-N-nitro-N'-methylisourea according to this invention.

[0025] In the diagram: 1. Support column; 2. Protective cover; 3. Centrifuge body; 4. Cover plate; 5. Turntable; 6. First placement slot; 7. Control button; 8. LCD display screen; 9. Restriction sleeve; 10. Placement tube; 11. Mounting plate; 12. Mounting slot; 13. Motor body; 14. Rotating shaft; 15. Protective pad; 16. Threaded column; 17. Threaded hole; 18. Annular retaining block; 19. Annular retaining groove; 20. Magnetic plate; 21. Magnetic plate; 22. Second placement slot; 23. Insertion hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides, for example Figure 1-4The centrifuge shown is for the preparation of O-methyl-N-nitro-N'-methylisourea. The centrifuge includes a centrifuge body 3 and a first placement groove 6 located inside the upper end of the centrifuge body 3. An installation groove 12 is provided inside the centrifuge body 3 and below the first placement groove 6. A motor body 13 is installed inside the installation groove 12, and a rotating mechanism is connected to the upper end of the motor body 13. A rotating shaft 14 is mounted on its upper end, located inside the first placement groove 6. An insertion hole 23 is located inside the upper end of the rotating shaft 14. A threaded hole 17 is located inside the rotating shaft 5, below the insertion hole 23. A placement tube 10 is mounted inside the insertion hole 23. A threaded post 16 is connected to the lower end of the placement tube 10, inside the threaded hole 17. An annular groove 19 is located on the inner wall of the placement tube 10. A magnetic plate 20 is embedded in the annular slot 19. An annular block 18 is installed on the inner side of the annular slot 19. A second placement groove 22 is provided on the outer wall of the annular block 18. A magnetic plate 21 is embedded inside the second placement groove 22. A limiting sleeve 9 is connected to the inner side of the annular block 18 and located inside the placement tube 10. A protective cover 2 is installed on the outer side of the placement tube 10 and located at the upper end of the turntable 5. A protective pad 15 is installed on the top inner side of the protective cover 2. The motor body 13 is electrically connected to an external power supply. Through the combined use of the protective cover 2, the protective pad 15, the placement tube 10 and multiple limiting sleeves 9, the stability and protection performance of the test tube restriction are enhanced. The combined use of the annular slot 19, the annular block 18, the magnetic plate 21, the magnetic plate 20, the snap-fit ​​and magnetic connection enhances the stability of the limiting sleeve 9 installation and the ease of disassembly. The setting of the threaded post 16, the threaded hole 17 and the threaded connection enhances the stability of the placement tube 10 installation and the ease of disassembly.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, to enhance the stability and protective performance of the test tube confinement, when using a centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea, multiple confinement sleeves 9 are first inserted into the ring grooves on the inner wall of the placement tube 10 via annular locking blocks 18. When the annular locking blocks 18 are inserted into the annular grooves 19, the magnetic plate 21 on the outer wall of the annular locking blocks 18 is attracted by the magnetic plate 20 on the inner wall of the annular grooves 19, thereby installing multiple confinement sleeves inside the placement tube 10. Then, the placement tube 10 is passed through the lower end... The threaded post 16 is threadedly connected to the threaded hole 17 at the bottom of the insertion hole 23, thereby allowing the placement tube 10 to be installed inside the insertion hole 23. Then, a test tube containing the O-methyl-N-nitro-N'-methylisourea mixture is inserted into the placement tube 10. When the test tube enters the placement tube 10, the multiple limiting sleeves 9 on the inner side of the placement tube 10, which are made of rubber, will restrict the test tube. Next, the protective cap 2 is threadedly connected to the placement tube 10, so that the protective cap 2 is installed in the placement tube 10. The outer upper end of the protective cover 2 is connected to the protective pad 15 inside the protective cover 2, which makes contact with the test tube. Since the protective pad 15 is made of sponge material, it will protect the test tube. Then, the motor body 13 is connected to the external power supply. Then, the motor body 13 is started by the control button 7. The motor body 13 will drive the turntable 5 to rotate rapidly through the rotating shaft 14. Under the action of centrifugal force, the solid particles in the mixture, due to their high density, settle to the inner wall of the drum to form a sediment layer, while the liquid remains inside the drum to form a liquid ring layer, thereby achieving rapid and efficient separation. The combination of the protective cover 2, the protective pad 15, the placement tube 10 and multiple limiting sleeves 9 enhances the stability and protection performance of the test tube. The combination of the annular slot 19, the annular block 18, the magnetic plate 21, the magnetic plate 20, the snap-fit ​​and the magnetic connection enhances the stability of the installation of the limiting sleeve 9 and the convenience of disassembly. The setting of the threaded column 16, the threaded hole 17 and the threaded connection enhances the stability of the installation of the placement tube 10 and the convenience of disassembly.

[0029] A mounting plate 11 is connected to the upper end of the rotating shaft 14 and the lower end of the turntable 5. Mounting holes are provided inside the mounting plate 11 and around its perimeter. A connecting hole is provided inside the lower end of the turntable 5 and at the position corresponding to the mounting holes. Internal threads are provided on the inner walls of the mounting holes and the connecting holes. A fastening nut is installed inside the mounting holes and the connecting holes and at the lower end of the mounting plate 11. External threads are provided on the outer wall of the fastening nut. The fastening nut connects with the internal threads on the inner walls of the mounting holes and the connecting holes through the external threads on its outer wall, thereby fixing the turntable 5 to the upper end of the mounting plate 11, and thus fixing the turntable 5 to the upper end of the rotating shaft 14. The mounting plate 11, mounting holes, connecting holes, fastening nuts, and threaded connections enhance the stability and convenience of the connection between the turntable 5 and the rotating shaft 14.

[0030] like Figure 1 and Figure 2 As shown, in order to enhance the stability and convenience of the connection between the turntable 5 and the rotating shaft 14, when using the centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea, the rotating shaft 14 is first connected to the mounting plate 11. Then, the turntable 5 is placed on the upper end of the mounting plate 11, so that the connecting hole inside the lower end of the turntable 5 is aligned with the mounting hole inside the mounting plate 11. Next, the fastening nut is inserted into the mounting hole and the connecting hole. The fastening nut is connected to the internal thread of the mounting hole and the connecting hole through the external thread of the outer wall, thereby fixing the turntable 5 on the upper end of the mounting plate 11, and then fixing the turntable 5 on the upper end of the rotating shaft 14. Through the setting of the mounting plate 11, mounting hole, connecting hole, fastening nut and threaded connection, the stability and convenience of the connection between the turntable 5 and the rotating shaft 14 are enhanced.

[0031] A cover plate 4 is installed at the rear of the centrifuge body 3. An LCD screen 8 and control buttons 7 are installed at the front of the centrifuge body 3. Support columns 1 are installed at the lower end of the centrifuge body 3. There are four support columns 1 in total. The four support columns 1 are welded at the four corners of the lower end of the centrifuge body 3. Both the centrifuge body 3 and the support columns 1 are made of stainless steel. The installation of support columns 1 enhances the stability of the centrifuge body 3 and the convenience of transportation.

[0032] like Figure 1 and Figure 2 As shown, in order to enhance the stability of the centrifuge body 3 and the ease of handling, when using the centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea, the support column 1 is first welded to the four corners at the bottom of the centrifuge body 3. Then, the centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea is placed on the table via the support column 1, thereby placing the centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea on the table via the support column 1. The support column 1 enhances the stability of the centrifuge body 3 and the ease of handling.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea, characterized by: include Centrifuge body (3) and a first placement slot (6) located at the upper interior of the centrifuge body (3); An installation groove (12) is provided inside the centrifuge body (3) and below the first placement groove (6). A motor body (13) is installed inside the installation groove (12). A rotating shaft (14) is connected to the upper end of the motor body (13). A turntable (5) is installed at the upper end of the rotating shaft (14) and inside the first placement groove (6). An insertion hole (23) is provided at the upper inner position of the turntable (5). A threaded hole (17) is provided inside the turntable (5) and below the insertion hole (23). A placement tube (10) is installed on the inner side of the insertion hole (23). A threaded post (16) is connected to the inner side of the threaded hole (17) and at the lower end of the placement tube (10). An annular groove (19) is provided on the inner wall of the placement tube (10). A magnetic plate (20) is embedded in the inner wall of the annular groove (19). An annular block (18) is installed on the inner side of the annular groove (19). A second placement groove (22) is provided on the outer wall of the annular block (18). A magnetic plate (21) is embedded inside the second placement groove (22). A limiting sleeve (9) is connected to the inner side of the annular block (18) and located on the inner side of the placement tube (10). A protective cover (2) is installed on the outside of the placement tube (10) and at the upper end of the turntable (5), and a protective pad (15) is installed on the top of the inner side of the protective cover (2). The motor body (13) is electrically connected to an external power source; The combined use of the protective cover (2), protective pad (15), placement tube (10) and multiple limiting sleeves (9) enhances the stability and protective performance of the test tube. The combined use of the annular slot (19), annular block (18), magnetic plate (21), magnetic plate (20), snap-fit ​​and magnetic connection enhances the stability of the limiting sleeve (9) installation and the ease of disassembly. The setting of threaded column (16), threaded hole (17) and threaded connection enhances the stability of the placement tube (10) installation and the ease of disassembly.

2. The centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea according to claim 1, characterized in that: A mounting plate (11) is connected to the upper end of the rotating shaft (14) and the lower end of the turntable (5). Mounting holes are provided inside the mounting plate (11) and around its perimeter.

3. A centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea according to claim 2, characterized in that: A connecting hole is provided inside the lower end of the turntable (5) at a position corresponding to the mounting hole, and an internal thread is provided on the inner wall of the mounting hole and the connecting hole.

4. A centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea according to claim 3, characterized in that: A fastening nut is installed inside the mounting hole and the connecting hole and at the lower end of the mounting plate (11), and the outer wall of the fastening nut is provided with an external thread.

5. A centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea according to claim 4, characterized in that: The fastening nut is connected to the mounting hole and the inner thread of the connecting hole through the external thread on the outer wall, so that the turntable (5) is fixed on the upper end of the mounting plate (11), and then the turntable (5) is fixed on the upper end of the rotating shaft (14). Through the setting of the mounting plate (11), mounting hole, connecting hole, fastening nut and threaded connection, the stability and convenience of the connection between the turntable (5) and the rotating shaft (14) are enhanced.

6. A centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea according to claim 1, characterized in that: A cover plate (4) is installed at the rear of the centrifuge body (3), and an LCD screen (8) and control buttons (7) are provided at the front of the centrifuge body (3).

7. A centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea according to claim 6, characterized in that: A support column (1) is provided at the lower end of the centrifuge body (3). There are four support columns (1) in total, and the four support columns (1) are welded to the four corners at the lower end of the centrifuge body (3).

8. A centrifuge for the preparation of O-methyl-N-nitro-N'-methylisourea according to claim 7, characterized in that: Both the centrifuge body (3) and the support column (1) are made of stainless steel. The support column (1) enhances the stability of the centrifuge body (3) and the ease of handling.

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