Drug intermediate purifier

Abstract

The utility model discloses a medicine intermediate purifier which comprises a purification cylinder, the purification cylinder is formed by vertically splicing a plurality of cylinder sections and a cylinder cover, the adjacent cylinder sections and the cylinder sections and the cylinder cover are locked and connected through a plurality of groups of pinch plates and locking blocks, adsorption plates are arranged in the cylinder sections, each adsorption plate is composed of a filtering section and a connecting section, and the filtering sections are connected with the connecting sections through the pinch plates and the locking blocks. The connecting section is clamped between the adjacent barrel sections or between the barrel section and the barrel cover, convex rings are arranged at the ends, close to the connecting section, of the barrel sections and the barrel cover, O-shaped rings are embedded in the convex rings, and annular grooves are formed in the positions, corresponding to the convex rings, of the connecting section. The adsorption plates are clamped between the adjacent cylinder sections and between the cylinder sections and the cylinder cover, and are sealed through the O-shaped rings, so that the edges of the adsorption plates are completely sealed, liquid medicine is not easy to overflow from the edges and is always filtered from the adsorption plates, and the purification effect is ensured; and meanwhile, the adjacent barrel sections and the barrel sections and the barrel cover can be loosened and disassembled by digging out the buckling plates and the locking blocks, so that the clamped adsorption plate is conveniently taken out to be cleaned.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical production and processing technology, and in particular to a pharmaceutical intermediate purifier. Background Technology

[0002] Pharmaceutical intermediates are chemical raw materials or products used in the process of drug synthesis. In the process of pharmaceutical intermediate synthesis, it is often necessary to separate and purify the synthesized or extracted compounds to obtain a single compound or a class of compounds with the same structural core. During the separation and purification, a purifier is needed to separate impurities from the drug raw materials.

[0003] Most existing purifiers consist of a purification chamber and an internal adsorption plate. The adsorption plate is installed in the purification chamber by sliding. Although this makes it convenient to remove the adsorption plate from the purification chamber for cleaning, the direct sliding connection between the adsorption plate and the chute makes it easy for the drug solution to overflow from the adsorption plate to the edge and seep into the chute. This not only makes cleaning difficult, but also causes some of the drug solution to flow to the next layer without being purified by the adsorption plate, mixing with the already purified drug solution and affecting the final purification effect.

[0004] To address these issues, we propose a drug intermediate purifier. Utility Model Content

[0005] The purpose of this invention is to provide a pharmaceutical intermediate purifier to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A pharmaceutical intermediate purifier includes a purification cylinder, which is vertically assembled from several cylinder segments and a cylinder cover. Adjacent cylinder segments and cylinder segments and cylinder covers are locked together by several sets of snap plates and locking blocks. The cylinder cover is provided with a feed hopper. The bottom of the lowest cylinder segment is closed and a discharge pipe is connected to its side wall. An adsorption plate is provided inside each cylinder segment. The adsorption plate is composed of a filter section and a connecting section. The connecting section is sandwiched between adjacent cylinder segments or between a cylinder segment and a cylinder cover. Each cylinder segment and cylinder cover has a protruding ring at one end near the connecting section, and an O-ring is embedded in the protruding ring. An annular groove is formed on the connecting section at the position corresponding to the protruding ring.

[0008] In a further embodiment, the filter section adopts a bucket-shaped structure that is wider at the top and narrower at the bottom.

[0009] In a further embodiment, the upper section of the filter section is a connecting cylinder, and the connecting cylinder and the connecting section are connected by a thread. The inner wall of the connecting cylinder is provided with an annular boss, and a washer is inlaid on the upper surface of the boss. When the connecting cylinder and the connecting section are screwed together, the lower end face of the connecting section is in close contact with the washer.

[0010] In a further embodiment, the feed hopper is provided with a rubber stopper, and a support rod is connected to the bottom of the rubber stopper. One end of the support rod is hinged to the bottom of the lever, and the other end of the lever is connected to a float. A hanger is installed on the inner top of the cylinder cover, and the hanger is rotatably connected to the lever.

[0011] In a further embodiment, the top surface of the rubber stopper has a conical structure.

[0012] In a further embodiment, when the height of the float is higher than the filter section of the uppermost adsorption plate, the rubber plug blocks the discharge port of the feed hopper.

[0013] In a further embodiment, the cross-sections of the convex ring and the annular groove are trapezoidal.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention features an adsorption plate clamped between adjacent cylinder sections and between the cylinder section and the cylinder cover, sealed with O-rings. This ensures a complete seal at the edge of the adsorption plate, preventing the liquid from overflowing from the edge and ensuring that it always filters down through the adsorption plate, thus guaranteeing the purification effect. Furthermore, the adjacent cylinder sections and the cylinder section and the cylinder cover can be easily disassembled by prying open the buckle plate and locking block, facilitating the removal of the clamped adsorption plate for cleaning. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the half-sectional structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the adsorption plate structure of this utility model;

[0019] Figure 4 This is a partial cross-sectional structural diagram of the connection between the adsorption plate and the cylinder section of this utility model.

[0020] In the diagram: 1. Cylinder section; 2. Cylinder cover; 3. Buckle plate; 4. Locking block; 5. Feed hopper; 6. Adsorption plate; 61. Filter section; 611. Connecting cylinder; 612. Boss; 613. Washer; 62. Connecting section; 7. Discharge pipe; 8. Rubber plug; 9. Support rod; 10. Lever; 11. Float ball; 12. Hanger; 13. Raised ring; 14. O-ring. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] 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.

[0024] Please see Figure 1-3A pharmaceutical intermediate purifier includes a purification cylinder, which is vertically assembled from several cylinder segments 1 and cylinder caps 2. Specifically, the bottommost cylinder segment 1 is closed at the bottom and open at the top, and a discharge pipe 7 is connected to the side wall of the bottommost cylinder segment 1. The lower edge of the discharge pipe 7 is located at the lowest point of the bottom surface of the bottommost cylinder segment 1 to facilitate the full discharge of the drug solution. The middle cylinder segments 1 are vertically continuous, and the bottom of the cylinder cap 2 is open, while the top of the cylinder cap 2 is partially closed and connected to the middle of the inlet. Bucket 5, adjacent cylindrical sections 1, and cylindrical section 1 and cylindrical cover 2 are locked together by several sets of buckle plates 3 and locking blocks 4. Specifically, the upper edge of the buckle plate 3 is rotatably connected to the outer wall of the cylindrical cover 2 or cylindrical section 1 near the lower end, and is evenly distributed along the circumference. The locking blocks 4 are fixed to the outer wall of the cylindrical section 1 near the upper end, and are also evenly distributed along the circumference. The locking blocks 4 and buckle plates 3 correspond one-to-one. The lower end of the buckle plate 3 is provided with a groove to facilitate fastening to the outside of the locking blocks 4. Upper layer The buckle plate 3 of the cylinder section 1 is used to fasten to the outside of the locking block 4 of the lower cylinder section 1. The cylinder section 1 is provided with an adsorption plate 6, which is composed of a filter section 61 and a connecting section 62. Specifically, the filter section 61 adopts a bucket-shaped structure that is wider at the top and narrower at the bottom, so as to facilitate the downward filtration of the liquid medicine. The connecting section 62 is sandwiched between adjacent cylinder sections 1 or between cylinder section 1 and cylinder cover 2. Both cylinder section 1 and cylinder cover 2 are provided with a protruding ring 13 at one end near the connecting section 62, and an O-ring 14 is embedded on the protruding ring 13. An annular groove is opened on the connecting section 62 at the position corresponding to the protruding ring 13. When the buckle plate 3 is fastened to the outside of the locking block 4, the O-ring 14 is pressed into the annular groove, thereby forming an annular seal, so that the liquid medicine is not easy to overflow from the edge of the adsorption plate 6. Specifically, the cross section of the protruding ring 13 and the annular groove adopts a trapezoidal structure, and the O-ring 14 is embedded on the inclined surface of the two waists of the trapezoid, so as to form a double sealing effect on the inner and outer sides of the protruding ring 13.

[0025] For further details, please refer to Figure 2 To reduce the possibility of the medicine overflowing from the edge, a rubber stopper 8 is provided inside the feed hopper 5, and a support rod 9 is connected to the bottom of the rubber stopper 8. One end of the lever 10 is hinged to the bottom of the support rod 9, and the other end of the lever 10 is connected to the float 11. A hanger 12 is installed on the inner top of the cylinder cover 2, and the hanger 12 is rotatably connected to the lever 10. The float 11 can float in the medicine. When the height of the float 11 is higher than the filter section 61 of the uppermost adsorption plate 6, the lever 10 is pulled to rotate counterclockwise, thereby driving the rubber stopper 8 to move down through the support rod 9. This causes the rubber stopper 8 to block the feed port of the feed hopper 5, and no more medicine is introduced. This prevents the medicine from accumulating too much in the uppermost adsorption plate 6 and prevents its liquid level from being higher than the upper edge of the adsorption plate 6, thereby reducing the possibility of the medicine overflowing from the edge. Specifically, the top surface of the rubber stopper 8 adopts a conical structure, which facilitates the flow of medicine and reduces the residue of medicine on the top surface of the rubber stopper 8.

[0026] Please see Figure 4To facilitate the later cleaning of impurities on the surface of filter section 61, the upper section of filter section 61 is designed as a connecting cylinder 611. The connecting cylinder 611 and filter section 61 are fixedly connected, and the inner wall of the connecting cylinder 611 is threaded, which engages with the thread on the outer wall of the connecting section 62, thus making the two threadedly connected and detachable for easy replacement of filter section 61. At the same time, the inner wall of the connecting cylinder 611 is also provided with an annular boss 612. The upper surface of the boss 612 is inlaid with a washer 613. When the connecting cylinder 611 and the connecting section 62 are tightened, the lower end face of the connecting section 62 is in close contact with the washer 613, ensuring the sealing effect at the connection between the connecting section 62 and the filter section 61.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pharmaceutical intermediate purifier, comprising a purification cartridge, characterized in that: The purification cylinder is vertically spliced ​​from several cylinder segments (1) and cylinder cap (2). Adjacent cylinder segments (1) and cylinder segments (1) and cylinder cap (2) are locked together by several sets of buckle plates (3) and locking blocks (4). The cylinder cap (2) is provided with a feed hopper (5). The bottom of the lowest cylinder segment (1) is closed and a discharge pipe (7) is connected to the side wall. An adsorption plate (6) is provided inside the cylinder segment (1). The adsorption plate (6) is composed of a filter section (61) and a connecting section (62). The connecting section (62) is sandwiched between adjacent cylinder segments (1) or between cylinder segment (1) and cylinder cap (2). The cylinder segment (1) and cylinder cap (2) are provided with a protruding ring (13) at one end near the connecting section (62). An O-ring (14) is inlaid on the protruding ring (13). An annular groove is opened on the connecting section (62) corresponding to the position of the protruding ring (13).

2. The pharmaceutical intermediate purifier according to claim 1, characterized in that: The filter section (61) adopts a bucket-shaped structure that is wider at the top and narrower at the bottom.

3. The pharmaceutical intermediate purifier according to claim 1, characterized in that: The upper section of the filter section (61) is a connecting cylinder (611), and the connecting cylinder (611) and the connecting section (62) are connected by a thread. The inner wall of the connecting cylinder (611) is provided with an annular boss (612), and a washer (613) is inlaid on the upper surface of the boss (612). When the connecting cylinder (611) and the connecting section (62) are tightened, the lower end face of the connecting section (62) is in close contact with the washer (613).

4. A pharmaceutical intermediate purifier according to claim 1, characterized in that: The feed hopper (5) is provided with a rubber plug (8) inside, and a support rod (9) is connected to the bottom of the rubber plug (8). One end of the lever (10) is hinged to the bottom of the support rod (9), and the other end of the lever (10) is connected to a float (11). A hanger (12) is installed on the inner top of the cylinder cover (2), and the hanger (12) is rotatably connected to the lever (10).

5. A pharmaceutical intermediate purifier according to claim 4, characterized in that: The top surface of the rubber stopper (8) has a conical structure.

6. A pharmaceutical intermediate purifier according to claim 4, characterized in that: When the height of the float (11) is higher than the filter section (61) of the uppermost adsorption plate (6), the rubber plug (8) blocks the discharge port of the feed hopper (5).

7. A pharmaceutical intermediate purifier according to claim 1, characterized in that: The cross-sections of the convex ring (13) and the annular groove are trapezoidal.

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