Synthesis device of propylthiouracil intermediate

By introducing a combination design of vibration system and stirring blades into the synthesis unit of propylthiouracil intermediates, the problem of low mixing efficiency in existing units has been solved, achieving full mixing of raw materials and improving production efficiency.

CN224221364UActive Publication Date: 2026-05-12JINGHUA PHARMA GRP NANTONG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINGHUA PHARMA GRP NANTONG
Filing Date
2025-04-29
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing synthesis equipment for propylthiouracil intermediates is inefficient during the mixing process, making it difficult to achieve thorough mixing of raw materials.

Method used

设计了一种包括混料罐、搅拌机构和振动系统的合成装置,通过振动电机驱动顶杆带动橡胶板上下运动,结合搅拌叶和混料罐的摆动,实现原料的翻动和混合。

Benefits of technology

提高了原料的混合效率,确保了丙硫氧嘧啶中间体的均匀性和生产效率。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of propylthiouracil intermediate synthesis, in particular to a propylthiouracil intermediate synthesis device which comprises a mixing tank, the mixing tank is arranged on a support frame, and a stirring mechanism is arranged in the mixing tank; an opening is formed in the bottom of the mixing tank, a mounting seat is mounted along the edge of the bottom of the mixing tank, a bearing seat is arranged in the middle of the mounting seat, an annular and elastic rubber plate is mounted along the edge of the bearing seat, and the edge of the rubber plate is fixed to the inner wall of the mounting seat; and an ejector rod is arranged below the bearing seat. When in use, the synthesizing device of the propylthiouracil intermediate pushes the ejector rod arranged below the bearing seat through the reciprocating lifting motion of the vibration motor below the mixing tank, so that the rubber plate at the bottom of the mixing tank can reciprocate up and down to push raw materials in the mixing tank to jump up and down; the raw materials are turned over, so that the raw materials can be fully mixed.
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Description

Technical Field

[0001] This utility model relates to the field of propylthiouracil intermediate synthesis technology, and in particular to a synthesis apparatus for propylthiouracil intermediates. Background Technology

[0002] Propylthiouracil, chemically known as 6-propyl-2-thiouracil, is an organic compound with the chemical formula C7H10N2OS. It inhibits the synthesis of thyroid hormones by suppressing the peroxidase system in the thyroid gland, preventing the iodination of tyrosine and the condensation of iodinated tyrosine.

[0003] Since propylthiouracil intermediates are mostly in powder or granular form, their synthesis typically involves placing the raw materials in a container and mixing them by stirring. However, existing synthesis apparatuses only use the rotation of stirring blades to achieve mixing, resulting in generally low synthesis efficiency. Therefore, we propose a synthesis apparatus for propylthiouracil intermediates to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by providing a synthetic apparatus for propylthiouracil intermediates.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a synthesis apparatus for a propylthiouracil intermediate is designed, including a mixing tank, which is mounted on a support frame and has a stirring mechanism inside the mixing tank;

[0006] The bottom of the mixing tank is open, and an installation seat is installed along the bottom edge of the mixing tank. A support seat is provided in the middle of the installation seat, and an annular and elastic rubber plate is installed along the edge of the support seat. The edge of the rubber plate is fixed to the inner wall of the installation seat.

[0007] A top rod is provided below the support base, and a limiting frame is provided on the top rod. The top rod slides through the limiting frame, and the end of the limiting frame is connected to the fixed frame through a connecting frame. The fixed frame is fixed on the annular seat, and the annular seat is fixed to the mixing tank. A machine box is connected to the bottom of the top rod. A vibration motor is installed inside the machine box, and guide shafts are vertically installed at the top corners of the machine box. The top of the guide shaft slides through the support plate, and the corners of the support plate are connected to the connecting frame through a connecting rod.

[0008] Preferably, an inlet and outlet are provided on one side of the top of the mixing tank, and a cover is installed on the inlet and outlet.

[0009] Preferably, the support frame includes two support shafts, the ends of which are fixed to the top sides of the mixing tank and are coaxial and symmetrical. The other end of the support shaft is rotatably mounted on a strip-shaped support base, the bottom of which is fixed to an annular base. A second drive motor is mounted on the end of one of the support shafts away from the mixing tank and is fixed to the support base.

[0010] Preferably, the top of the mixing tank is also open, and a top cover is installed on the top of the mixing tank. The stirring mechanism includes a first drive motor, which is fixed at the center of the top of the top cover. A stirring shaft is installed at the bottom of the first drive motor. The stirring shaft is placed inside the mixing tank and is rotatably connected to the top cover. Multiple stirring blades are installed at intervals on the bottom of the stirring shaft.

[0011] Preferably, the bottommost stirring blade is tilted downwards.

[0012] Preferably, a limit plate is installed on the top of each guide shaft.

[0013] Preferably, each guide shaft is fitted with a compression spring at both ends, and the compression springs are arranged on the upper and lower sides of the support plate.

[0014] The design scheme proposed in this utility model has the following beneficial effects in application:

[0015] 1. The synthesis device for the propylthiouracil intermediate uses a vibrating motor to reciprocate the lifting motion below the mixing tank, which pushes the top rod placed below the support base. This causes the rubber plate at the bottom of the mixing tank to move up and down, thereby causing the raw materials in the mixing tank to jump up and down, realizing the turning operation of the raw materials and allowing them to be fully mixed.

[0016] 2. The synthesis device for the propylthiouracil intermediate is connected by a rotating mixing tank on a support frame and operated by a second drive motor. This allows the mixing tank to reciprocate while the support seat is in reciprocating motion, thereby further improving the tumbling effect of the raw materials in the mixing tank and increasing the mixing efficiency of the raw materials. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the internal structure of the mixing tank of this utility model;

[0020] Figure 4 This is a schematic diagram of the top rod structure of this utility model.

[0021] In the diagram: 1. Mixing tank; 2. Top cover; 3. Stirring shaft; 4. First drive motor; 5. Stirring blade; 6. Support shaft; 7. Support seat; 8. Base; 9. Second drive motor; 10. Inlet / outlet; 11. Mounting seat; 12. Rubber plate; 13. Bearing seat; 14. Annular seat; 15. Fixing frame; 16. Limiting frame; 17. Connecting frame; 18. Top rod; 19. Support plate; 20. Connecting rod; 21. Vibration motor; 22. Chassis; 23. Guide shaft; 24. Limiting plate; 25. Compression spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 A synthesis apparatus for a propylthiouracil intermediate includes a mixing tank 1 mounted on a support frame. The support frame includes two support shafts 6, the ends of which are fixed to the top sides of the mixing tank 1 and are coaxially symmetrical. The other ends of the support shafts 6 are rotatably mounted on a strip-shaped support base 7, the bottom of which is fixed to an annular base 8. A second drive motor 9 is mounted on one end of one of the support shafts 6 away from the mixing tank 1. The second drive motor 9 is fixed to the support base 7 and is used to support the mixing tank 1, allowing the mixing tank 1 to rotate freely on the support base 7. Under the action of the second drive motor 9, the mixing tank 1 can reciprocate on the support base 7, thereby shaking the raw materials placed in the mixing tank 1.

[0024] Specifically, an inlet / outlet 10 is provided on one side of the top of the mixing tank 1, and a cover plate is installed on the inlet / outlet 10. When in use, the raw materials can be poured into the mixing tank 1 through the inlet / outlet 10. After the raw materials are mixed, the mixing tank 1 can be flipped by the second drive motor 9 so that the inlet / outlet 10 faces downward, so that the raw materials can be poured out of the mixing tank 1.

[0025] like Figure 1 and Figure 3As shown, a stirring mechanism is provided inside the mixing tank 1. The top of the mixing tank 1 is open, and a top cover 2 is installed on the top of the mixing tank 1. The stirring mechanism includes a first drive motor 4, which is fixed at the center of the top of the top cover 2. A stirring shaft 3 is installed at the bottom of the first drive motor 4. The stirring shaft 3 is placed inside the mixing tank 1 and is rotatably connected to the top cover 2. Multiple stirring blades 5 are installed at intervals on the bottom of the stirring shaft 3 to stir the raw materials placed in the mixing tank 1, thereby improving the mixing efficiency between the raw materials.

[0026] like Figure 2 and Figure 4 As shown, the bottom of the mixing tank 1 is also open. An installation base 11 is installed along the bottom edge of the mixing tank 1, and a support base 13 is provided in the middle of the installation base 11. An annular and elastic rubber plate 12 is installed along the edge of the support base 13. The edge of the rubber plate 12 is fixed to the inner wall of the installation base 11. Under the elastic action of the rubber plate 12, the support base 13 can move up and down. In actual use, the installation base 11 can be detached and installed on the mixing tank 1.

[0027] While the raw materials are being stirred by the stirring blades 5, a top rod 18 is provided below the support seat 13. A limiting frame 16 is provided on the top rod 18. The top rod 18 slides through the limiting frame 16, and the end of the limiting frame 16 is connected to the fixed frame 15 through the connecting frame 17. The fixed frame 15 is fixed on the annular seat 14, which is fixed to the mixing tank 1. A housing 22 is connected to the bottom of the top rod 18. A vibration motor 21 is installed inside the housing 22. Under the operation of the vibration motor 21, the top rod 18 is driven to vibrate. The sliding penetration of the top rod 18 on the limiting frame 16 limits the vibration of the top rod 18, so that the top rod 18 makes a linear reciprocating motion along its own axis, thereby providing power for the up-and-down movement of the support seat 13, realizing the up-and-down turning operation of the raw materials in the mixing tank 1, and improving the mixing efficiency between the raw materials.

[0028] It should be noted that guide shafts 23 are vertically installed along and at the top corners of the housing 22. The top of the guide shafts 23 slides through the support plate 19, and the corners of the support plate 19 are connected to the connecting frame 17 via connecting rods 20, so that the housing 22 is movably connected to the top rod 18. While ensuring the reciprocating motion of the top rod 18, it provides stable support for the vibration motor 21.

[0029] Furthermore, a limit plate 24 is installed on the top of each guide shaft 23, and a compression spring 25 is sleeved at both ends of each guide shaft 23. The compression springs 25 are arranged on the upper and lower sides of the support plate 19. When the push rod 18 reciprocates, the compression springs 25 on the guide shaft 23 are compressed, thereby providing elasticity to the push rod 18 and improving the reciprocating motion effect of the push rod 18.

[0030] It needs to be further explained that, such as Figure 3 As shown, the bottommost stirring blade 5 is inclined downwards. In actual use, as the support base 13 moves upwards, the bottom of the mixing tank 1 forms an upwardly concave arc surface. The downwardly inclined stirring blade 5 can make more full contact with the raw materials in the limited space of the mixing tank 1, thereby improving the effect of the stirring blade 5 on the raw materials.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An apparatus for synthesizing a propylthiouracil intermediate, characterized in that: It includes a mixing tank (1), which is mounted on a support frame and has a stirring mechanism inside the mixing tank (1); The bottom of the mixing tank (1) is open. An installation seat (11) is installed along the bottom edge of the mixing tank (1). A bearing seat (13) is provided in the middle of the installation seat (11). An annular and elastic rubber plate (12) is installed along the edge of the bearing seat (13). The edge of the rubber plate (12) is fixed to the inner wall of the installation seat (11). A top rod (18) is provided below the support seat (13). A limit frame (16) is provided on the top rod (18). The top rod (18) slides through the limit frame (16). The end of the limit frame (16) is connected to the fixed frame (15) through the connecting frame (17). The fixed frame (15) is fixed on the annular seat (14). The annular seat (14) is fixed to the mixing tank (1). A machine box (22) is connected to the bottom of the top rod (18). A vibration motor (21) is provided inside the machine box (22). Guide shafts (23) are vertically installed at the top corners of the machine box (22). The top of the guide shaft (23) slides through the support plate (19). The corners of the support plate (19) are connected to the connecting frame (17) through the connecting rod (20).

2. The apparatus for synthesizing a propylthiouracil intermediate according to claim 1, characterized in that: An inlet and outlet (10) are provided on one side of the top of the mixing tank (1), and a cover plate is installed on the inlet and outlet (10).

3. The apparatus for synthesizing a propylthiouracil intermediate according to claim 2, characterized in that: The support frame includes two support shafts (6), the ends of which are fixed on the top sides of the mixing tank (1) and the two support shafts (6) are coaxial and symmetrical. The other end of the support shaft (6) is rotatably mounted on a strip-shaped support seat (7). The bottom of the support seat (7) is fixed on an annular base (8). A second drive motor (9) is mounted on one end of one of the support shafts (6) away from the mixing tank (1). The second drive motor (9) is fixed on the support seat (7).

4. The apparatus for synthesizing a propylthiouracil intermediate according to claim 1, characterized in that: The top of the mixing tank (1) is also open, and a top cover (2) is installed on the top of the mixing tank (1). The stirring mechanism includes a first drive motor (4), which is fixed at the center of the top of the top cover (2). A stirring shaft (3) is installed at the bottom of the first drive motor (4). The stirring shaft (3) is placed inside the mixing tank (1) and is rotatably connected to the top cover (2). Multiple stirring blades (5) are installed at intervals on the bottom of the stirring shaft (3).

5. The apparatus for synthesizing a propylthiouracil intermediate according to claim 1, characterized in that: The bottommost stirring blade (5) is tilted downwards.

6. The apparatus for synthesizing a propylthiouracil intermediate according to claim 1, characterized in that: Each guide shaft (23) is fitted with a limit plate (24) at its top.

7. The apparatus for synthesizing a propylthiouracil intermediate according to claim 6, characterized in that: Each guide shaft (23) is fitted with a compression spring (25) at both ends, and the compression springs (25) are arranged on the upper and lower sides of the support plate (19).