Pharmaceutical centrifugal device for improving purity of raw material medicine

Abstract

The utility model discloses a pharmaceutical centrifugal device capable of improving the purity of raw material medicine. The pharmaceutical centrifugal device comprises a base, an outer shell, an elastic damping column, a rotary driving mechanism, a rotating shaft, a filter cartridge assembly and a brake assembly. The filter cartridge assembly comprises a conical body, an annular filter plate, an annular end cover and a locking nut, and a containing cavity used for containing liquid medicine to be filtered is formed between the inner wall of the annular filter plate and the conical body. When the centrifugal device runs, the rotary driving mechanism can drive the filter cylinder assembly to rotate through the rotary shaft, liquid medicine is placed in the containing cavity, solid particles can be separated out by the annular filter plate along with the action of rotary centrifugal force, and pure liquid medicine can enter the clean liquid channel through the annular filter plate and flow to the liquid discharge hole, so that the liquid medicine is separated out. Therefore, solid-liquid separation is realized; and through the arrangement of the brake assembly, an operator can conveniently and flexibly decelerate or stop the rotating motion of the centrifugal device, so that the safety of the equipment is improved, and the risk of accidents is reduced.

Description

Technical Field

[0001] The utility model relates to the field of centrifugal devices, in particular to a pharmaceutical centrifugal device for improving the purity of raw medicines. Background Art

[0002] Filtration and separation is a very important step in the pharmaceutical process. This step is to filter out impurities in the drug solution in order to obtain high-purity drugs. The filtration effect can directly affect the quality of the drug solution. The centrifuge is a mechanical device that separates solid and liquid components. The solid-liquid mixture enters the centrifuge and is centrifugally filtered.

[0003] In the prior art, some centrifugal devices including filter screens have fixed filter screens, which are inconvenient to disassemble and thus inconvenient to clean. If the filter screen is not cleaned for a long time, the purity of the filtered liquid medicine will be low. Moreover, the casing of the conventional centrifugal device is also fixed and cannot be disassembled, which makes it difficult to clean the dirt at various positions inside the centrifugal device during cleaning, thereby affecting the filtering effect of the centrifugal device and even causing cross contamination. In addition, the centrifugal device will generate high-speed rotation during operation. Opening the centrifuge in the rotating state will not only destroy the sealing performance of the centrifuge, resulting in a decrease in the centrifugal effect and affecting the separation effect, but also has certain risks. However, the centrifugal devices on the market generally do not have an active braking function and can only wait for the disappearance of the inertia force of the motor to stop running. It is difficult for operators to quickly brake the centrifugal device under special circumstances, and there is a lack of certain operational flexibility.

[0004] Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a pharmaceutical centrifugal device which is easy to disassemble and clean and has an active braking function and can improve the purity of raw medicines.

[0006] To achieve this purpose, the utility model adopts the following technical scheme: a pharmaceutical centrifugal device for improving the purity of raw materials, including a base, an outer shell, an elastic shock-absorbing column, a rotary drive mechanism, a rotating shaft, a filter cartridge assembly and a brake assembly;

[0007] A plurality of elastic shock-absorbing columns are arranged along the circumferential direction of the outer shell, the outer shell is connected to the base through the elastic shock-absorbing columns, the filter cartridge assembly is arranged in the outer shell, and the rotary drive mechanism is connected to the filter cartridge assembly through the rotating shaft;

[0008] The filter cartridge assembly comprises a cone, an annular filter plate, an annular end cover and a locking nut, wherein the cone is connected to the rotating shaft via a key, the top of the rotating shaft has an external thread, and the locking nut is threadedly connected to the external thread to lock the cone on the rotating shaft;

[0009] The annular filter plate is arranged at the bottom of the conical body, the annular end cover is arranged at the top of the annular filter plate, a plurality of filter holes are arranged on the surface of the annular filter plate, and a containing chamber for containing the liquid to be filtered is formed between the inner wall of the annular filter plate and the conical body;

[0010] A clean liquid channel for accommodating filtered liquid is formed between the outer wall of the annular filter plate and the inner wall of the outer shell, and a drain hole communicating with the base is provided on the clean liquid channel;

[0011] The brake assembly is connected to the rotary drive mechanism, and the brake assembly is used to apply a braking force to the rotary drive mechanism.

[0012] By adopting the above technical scheme, in the pharmaceutical centrifuge device for improving the purity of raw materials, a retaining ring is provided at the bottom of the conical body, threaded holes are provided at intervals along the circumferential direction at the bottom of the annular filter plate, and the retaining ring and the threaded holes are detachably connected by bolts.

[0013] By adopting the above-mentioned technical solutions, in the pharmaceutical centrifuge device for improving the purity of raw materials, the rotary drive mechanism includes a mounting frame, a drive motor, a first pulley and a second pulley;

[0014] The mounting frame is arranged on the side wall of the outer shell, the driving motor is arranged on the mounting frame, the output shaft of the driving motor is connected with the first pulley, the second pulley is sleeved on the bottom of the rotating shaft, and the first pulley and the second pulley are connected by a transmission belt.

[0015] By adopting the above-mentioned technical solutions, in the pharmaceutical centrifugal device for improving the purity of raw materials, the brake assembly includes a foot pedal, an articulated arm, a pull rod, a metal pull tab, a brake pad and a connecting seat;

[0016] The second pulley is provided with a brake groove along the circumferential direction, the metal pull piece is semi-enclosed and arranged on the outer side of the brake groove, and the brake pad is arranged on the inner side of the metal pull piece;

[0017] One end of the metal pull tab is connected to the bottom of the outer shell through the connecting seat, the other end of the metal pull tab is connected to one end of the pull rod, the hinge arm is rotatably connected to the bottom of the outer shell, and the foot pedal is connected to the other end of the pull rod through the hinge arm;

[0018] The foot pedal is used to drive the articulated arm to rotate when subjected to force, so as to stretch the brake pad on the inner side of the metal pull sheet to fit tightly against the surface of the brake groove for braking.

[0019] By adopting the above-mentioned technical solutions, in the pharmaceutical centrifugal device for improving the purity of raw materials, the brake assembly also includes a limit seat and a limit rod;

[0020] Several of the limit seats are respectively arranged at the bottom of the outer shell outside the metal pull tab, and the limit seats are provided with limit slide grooves. The limit rod is arranged on the outer side wall of the metal pull tab, and the end of the limit rod extends into the limit slide groove. The limit slide groove is used to limit the stretching stroke of the metal pull tab.

[0021] By adopting the above-mentioned technical solutions, in the pharmaceutical centrifugal device for improving the purity of raw materials, the outer shell includes a bottom shell, a cover shell and a threaded connector;

[0022] The cover shell is arranged on the top of the bottom shell, and the cover shell and the bottom shell are locked and connected by a threaded connector, and the threaded connector includes a locking screw, a connecting ear plate and a nut;

[0023] The connecting ear plate is arranged on the side wall of the bottom shell, and a through hole is arranged on the connecting ear plate. The locking screw is arranged on the side wall of the cover shell, and the locking screw passes through the through hole and is connected with the nut by thread.

[0024] By adopting the above-mentioned technical solutions, in the pharmaceutical centrifuge device for improving the purity of raw materials, an annular sealing gasket is further provided between the bottom shell and the cover shell.

[0025] By adopting the above-mentioned technical solutions, in the pharmaceutical centrifugal device for improving the purity of raw materials, the top of the cover shell has a feed inlet, and a cover plate assembly is provided on the feed inlet, and the cover plate assembly is used to close or open the feed inlet;

[0026] The cover plate assembly includes a cover plate, a pressure plate and a damping hinge. The cover plate is arranged on the feed port. One end of the pressure plate is pressed on the surface of the cover plate, and the other end of the pressure plate is connected to the cover shell through the damping hinge. The damping hinge is used to apply downward pressure to the pressure plate.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] When the centrifugal device of the utility model is in operation, the rotary drive mechanism can drive the filter cartridge assembly to rotate through the rotating shaft, and the medicine liquid is placed in the accommodating chamber. With the action of the rotating centrifugal force, the solid particles will be separated by the annular filter plate, and the pure medicine liquid can enter the clean liquid channel through the annular filter plate and flow to the drainage hole, thereby realizing solid-liquid separation; the setting of the brake assembly can facilitate the operator to flexibly slow down or stop the rotational movement of the centrifugal device, thereby improving the safety of the equipment and reducing the risk of accidents; a retaining ring is provided at the bottom of the cone, and the retaining ring and the annular filter plate are detachably connected by bolts. Such a setting can facilitate the operator to easily disassemble the annular filter plate for cleaning, maintenance or replacement, and avoid residues affecting the filtering and separation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0031] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0032] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0033] Figure 3 This is a schematic diagram of the filter cartridge assembly structure of the utility model;

[0034] Figure 4 This is a schematic diagram of the explosion structure of the filter cartridge assembly of the utility model;

[0035] Figure 5 This is a schematic diagram of the structure of the rotary drive mechanism of the utility model;

[0036] Figure 6 This is a schematic diagram of the brake assembly structure of the utility model. DETAILED DESCRIPTION

[0037] In order to make the utility model's purpose, features, and advantages more obvious and easy to understand, the following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the embodiments described below are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0039] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0040] like Figures 1 to 6 As shown, the embodiment of the utility model provides a pharmaceutical centrifugal device for improving the purity of raw materials, including a base 1, an outer shell 2, an elastic shock-absorbing column 3, a rotary drive mechanism 4, a rotating shaft 5, a filter cartridge assembly 6 and a brake assembly 7;

[0041] A plurality of elastic shock-absorbing columns 3 are arranged along the circumferential direction of the outer shell 2, the outer shell 2 is connected to the base 1 through the elastic shock-absorbing columns 3, the filter cartridge assembly 6 is arranged in the outer shell 2, and the rotary drive mechanism 4 is connected to the filter cartridge assembly 6 through the rotating shaft 5; the elastic shock-absorbing columns 3 can absorb the vibration and impact force generated when the centrifugal device is running, thereby reducing the vibration of the equipment and avoiding the impact force on the internal parts of the centrifugal device, thereby extending the service life of the equipment and parts;

[0042] like Figures 2 to 4As shown, the filter cartridge assembly 6 includes a cone 61, an annular filter plate 62, an annular end cover 63 and a locking nut 64. The cone 61 is connected to the rotating shaft 5 by a key. The top of the rotating shaft 5 has an external thread (not shown). The locking nut 64 is threadedly connected to the external thread to lock the cone 61 on the rotating shaft 5. The configuration of the cone 61 makes it easier to separate the drug solution during rotation, thereby improving the separation efficiency. The cone 61 is connected to the rotating shaft 5 by a key, thereby improving the installation stability between the cone 61 and the rotating shaft 5 and preventing the cone 61 from loosening during rotation.

[0043] The annular filter plate 62 is arranged at the bottom of the conical body 61, and the annular end cover 63 is arranged at the top of the annular filter plate 62. A plurality of filtering holes 620 are arranged on the surface of the annular filter plate 62. A containing chamber 600 for containing the liquid to be filtered is formed between the inner wall of the annular filter plate 62 and the conical body 61. A clean liquid channel 20 for containing the filtered liquid is formed between the outer wall of the annular filter plate 62 and the inner wall of the outer shell 2. A drainage hole 201 connected to the base 1 is provided on the clean liquid channel 20. When the centrifugal device is running, the rotating shaft 5 can drive the filter cartridge assembly 6 to rotate, and the liquid is placed in the containing chamber 600. With the action of the rotating centrifugal force, the solid particles will be separated by the annular filter plate 62, and the pure liquid can enter the clean liquid channel 20 through the annular filter plate 62 and flow to the drainage hole 201, thereby realizing solid-liquid separation.

[0044] like Figure 5 and Figure 6 As shown, the brake assembly 7 is connected to the rotary drive mechanism 4, and the brake assembly 7 is used to apply a braking force to the rotary drive mechanism 4. The brake assembly 7 can decelerate or stop the rotational movement of the centrifugal device, ensuring that the operator can quickly stop the equipment when necessary, thereby improving the safety of the equipment and reducing the risk of accidents.

[0045] like Figures 2 to 4 As shown, further, a retaining ring 65 is provided at the bottom of the conical body 61, and threaded holes 621 are provided at intervals along the circumferential direction at the bottom of the annular filter plate 62. The retaining ring 65 and the threaded holes 621 are detachably connected by bolts. Such a configuration allows operators to easily remove the annular filter plate 62 for cleaning, maintenance or replacement, thereby preventing residues from affecting the filtering and separation effect.

[0046] like Figure 5As shown, further, the rotation drive mechanism 4 includes a mounting frame 41, a driving motor (not shown), a first pulley 42 and a second pulley 43; the mounting frame 41 is arranged on the side wall of the outer shell 2, the driving motor is arranged on the mounting frame 41, the output shaft of the driving motor is connected to the first pulley 42, the second pulley 43 is sleeved on the bottom of the rotating shaft 5, and the first pulley 42 and the second pulley 43 are connected by a transmission belt. When the driving motor rotates, it can drive the first pulley 42 to rotate, and since the first pulley 42 and the second pulley 43 are connected by a transmission belt, the rotating shaft 5 connected to the second pulley 43 is driven to rotate.

[0047] like Figure 6 As shown, further, the brake assembly 7 includes a foot pedal 71, an articulated arm 72, a pull rod 73, a metal pull tab 74, a brake pad 75 and a connecting seat 76; the second pulley 43 is provided with a brake groove 431 along the circumferential direction, the metal pull tab 74 is semi-enclosed and arranged on the outer side of the brake groove 431, the brake pad 75 is arranged on the inner side of the metal pull tab 74, one end of the metal pull tab 74 is connected to the bottom of the outer shell 2 through the connecting seat 76, the other end of the metal pull tab 74 is connected to one end of the pull rod 73, the articulated arm 72 is rotatably connected to the bottom of the outer shell 2, the foot pedal 71 is connected to the other end of the pull rod 73 through the articulated arm 72, and the foot pedal 71 is used to drive the articulated arm 72 to rotate when subjected to force, so as to stretch the brake pad 75 on the inner side of the metal pull tab 74 to fit tightly against the surface of the brake groove 431 for braking. When the centrifugal device needs to be braked, the operator can step on the foot pedal 71, and the articulated arm 72 will rotate under the action of the force, thereby driving the metal pull tab 74 to stretch to one side of the articulated arm 72, so that the brake pad 75 on the inner side of the metal pull tab 74 is tightly attached to the surface of the brake groove 431 on the second pulley 43. When the brake pad 75 is tightly attached to the surface of the brake groove 431, friction will be generated, thereby slowing down the rotation speed of the second pulley 43, and finally stopping the rotation of the centrifugal device.

[0048] like Figure 6 As shown, further, the brake assembly 7 also includes a limiting seat 77 and a limiting rod 78. Several of the limiting seats 77 are respectively arranged at the bottom of the outer shell 2 outside the metal pull tab 74. The limiting seat 77 is provided with a limiting slide groove 770. The limiting rod 78 is arranged on the outer wall of the metal pull tab 74, and the end of the limiting rod 78 extends into the limiting slide groove 770. The limiting slide groove 770 is used to limit the stretching stroke of the metal pull tab 74. Such a setting can not only avoid damage to the metal pull tab 74 caused by excessive stretching stroke, but also enable the metal pull tab 74 to maintain a certain distance from the brake groove 431 when resetting, so as to avoid the influence of excessive distance on the braking effect.

[0049] like Figures 1 to 4 As shown, further, the outer shell 2 includes a bottom shell 21, a cover shell 22 and a threaded connector 23, the cover shell 22 is arranged on the top of the bottom shell 21, and the cover shell 22 and the bottom shell 21 are locked and connected by the threaded connector 23, the threaded connector 23 includes a locking screw 231, a connecting ear plate 232 and a nut 233, the connecting ear plate 232 is arranged on the side wall of the bottom shell 21, the connecting ear plate 232 is provided with a through hole, the locking screw 231 is arranged on the side wall of the cover shell 22, the locking screw 231 passes through the through hole and is threadedly connected with the nut 233. The provision of the threaded connector 23 allows operators to easily disassemble the cover shell 22 for internal cleaning, which is practical and convenient.

[0050] like Figure 4 As shown, further, an annular sealing gasket 24 is provided between the bottom shell 21 and the cover shell 22. The provision of the annular sealing gasket 24 can improve the sealing performance between the bottom shell 21 and the cover shell 22 to prevent the drug solution from leaking from the inside.

[0051] like Figure 1 and Figure 2 As shown, further, the top of the cover shell 22 has a feed inlet, and a cover plate assembly 25 is provided on the feed inlet. The cover plate assembly 25 is used to close or open the feed inlet. The cover plate assembly 25 includes a cover plate 251, a pressing plate 252 and a damping hinge 253. The cover plate 251 is provided on the feed inlet, one end of the pressing plate 252 is pressed on the surface of the cover plate 251, and the other end of the pressing plate 252 is connected to the cover shell 22 through the damping hinge 253. The damping hinge 253 is used to apply downward pressure to the pressing plate 252. The cover plate assembly 25 can be used to close or open the feed inlet. When the cover plate 251 is in a closed state, it can prevent external impurities from entering the interior of the equipment; when it is necessary to add the liquid medicine to be centrifugally filtered, the cover plate 251 can be opened to facilitate feeding.

[0052] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A pharmaceutical centrifugal device for improving the purity of raw materials, characterized in that: It includes a base, an outer shell, an elastic shock-absorbing column, a rotary drive mechanism, a rotating shaft, a filter cartridge assembly and a brake assembly; A plurality of elastic shock-absorbing columns are arranged along the circumferential direction of the outer shell, the outer shell is connected to the base through the elastic shock-absorbing columns, the filter cartridge assembly is arranged in the outer shell, and the rotary drive mechanism is connected to the filter cartridge assembly through the rotating shaft; The filter cartridge assembly comprises a cone, an annular filter plate, an annular end cover and a locking nut, wherein the cone is connected to the rotating shaft via a key, the top of the rotating shaft has an external thread, and the locking nut is threadedly connected to the external thread to lock the cone on the rotating shaft; The annular filter plate is arranged at the bottom of the conical body, the annular end cover is arranged at the top of the annular filter plate, a plurality of filter holes are arranged on the surface of the annular filter plate, and a containing chamber for containing the liquid to be filtered is formed between the inner wall of the annular filter plate and the conical body; A clean liquid channel for accommodating filtered liquid is formed between the outer wall of the annular filter plate and the inner wall of the outer shell, and a drain hole communicating with the base is provided on the clean liquid channel; The brake assembly is connected to the rotary drive mechanism, and the brake assembly is used to apply a braking force to the rotary drive mechanism.

2. The pharmaceutical centrifuge for improving the purity of raw materials according to claim 1, characterized in that: A retaining ring is provided at the bottom of the conical body, and threaded holes are provided at intervals along the circumferential direction at the bottom of the annular filter plate. The retaining ring and the threaded holes are detachably connected by bolts.

3. The pharmaceutical centrifuge for improving the purity of raw materials according to claim 1, characterized in that: The rotary drive mechanism comprises a mounting frame, a drive motor, a first pulley and a second pulley; The mounting frame is arranged on the side wall of the outer shell, the driving motor is arranged on the mounting frame, the output shaft of the driving motor is connected with the first pulley, the second pulley is sleeved on the bottom of the rotating shaft, and the first pulley and the second pulley are connected by a transmission belt.

4. The pharmaceutical centrifuge for improving the purity of raw materials according to claim 3, characterized in that: The brake assembly includes a foot pedal, an articulated arm, a pull rod, a metal pull tab, a brake pad and a connecting seat; The second pulley is provided with a brake groove along the circumferential direction, the metal pull piece is semi-enclosed and arranged on the outer side of the brake groove, and the brake pad is arranged on the inner side of the metal pull piece; One end of the metal pull tab is connected to the bottom of the outer shell through the connecting seat, the other end of the metal pull tab is connected to one end of the pull rod, the hinge arm is rotatably connected to the bottom of the outer shell, and the foot pedal is connected to the other end of the pull rod through the hinge arm; The foot pedal is used to drive the articulated arm to rotate when subjected to force, so as to stretch the brake pad on the inner side of the metal pull sheet to fit tightly against the surface of the brake groove for braking.

5. The pharmaceutical centrifuge for improving the purity of raw materials according to claim 4, characterized in that: The brake assembly also includes a limit seat and a limit rod; Several of the limit seats are respectively arranged at the bottom of the outer shell outside the metal pull tab, and the limit seats are provided with limit slide grooves. The limit rod is arranged on the outer side wall of the metal pull tab, and the end of the limit rod extends into the limit slide groove. The limit slide groove is used to limit the stretching stroke of the metal pull tab.

6. The pharmaceutical centrifuge for improving the purity of raw materials according to claim 1, characterized in that: The outer shell comprises a bottom shell, a cover shell and a threaded connector; The cover shell is arranged on the top of the bottom shell, and the cover shell and the bottom shell are locked and connected by a threaded connector, and the threaded connector includes a locking screw, a connecting ear plate and a nut; The connecting ear plate is arranged on the side wall of the bottom shell, and a through hole is arranged on the connecting ear plate. The locking screw is arranged on the side wall of the cover shell, and the locking screw passes through the through hole and is connected with the nut by thread.

7. The pharmaceutical centrifuge for improving the purity of a raw drug according to claim 6, characterized in that: An annular sealing gasket is also provided between the bottom shell and the cover shell.

8. The pharmaceutical centrifuge for improving the purity of raw materials according to claim 6, characterized in that: The top of the cover shell is provided with a material inlet, and a cover plate assembly is provided on the material inlet, and the cover plate assembly is used to close or open the material inlet; The cover plate assembly includes a cover plate, a pressure plate and a damping hinge. The cover plate is arranged on the feed port. One end of the pressure plate is pressed on the surface of the cover plate, and the other end of the pressure plate is connected to the cover shell through the damping hinge. The damping hinge is used to apply downward pressure to the pressure plate.

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