Powder medicine collecting device

Abstract

The invention relates to the technical field of medicine processing instruments, and discloses a powder medicine collecting device which comprises a collecting barrel, the surface of the collecting barrel is fixedly connected with a shell, an inner cavity of the shell is rotationally connected with a connecting rod, one end of the connecting rod is fixedly connected with a mounting plate, and the other end of the connecting rod is fixedly connected with a knob. Four filter cartridges with different mesh numbers are slidably connected to an inner cavity of the mounting plate, a first reset spring is arranged between the knob and the shell, two guide columns are fixedly connected to the surface of the shell, connecting sleeves are slidably connected to the surfaces of the two guide columns, second reset springs are arranged between the guide columns and the connecting sleeves, one end of each connecting sleeve extends to the inner cavity of the shell, and the other end of each connecting sleeve extends to the inner cavity of the shell. A locking column is fixedly connected to one end of the connecting sleeve, a rotating plate is rotatably connected to an inner cavity of the collecting barrel, an extrusion column is arranged on the surface of the rotating plate, a top column is slidably connected to the interior of the shell, and a third reset spring is arranged between the rotating plate and the collecting barrel.

Description

Technical Field

[0001] The present invention relates to the technical field of medicine processing equipment, in particular to a powder medicine collecting device. Background Art

[0002] The powder drug collection device is a facility specifically used to collect and process powdered drugs or fine particles. It is used to ensure that small or trace amounts of powdered drugs can be collected safely and effectively during operations in the fields of pharmaceuticals, chemical analysis, laboratory research, etc., to prevent environmental pollution and protect the health of laboratory personnel.

[0003] In the field of collecting powdered pharmaceuticals, existing filter screen configurations are mostly single-mesh designs. That is, the entire collection device is usually equipped with a filter screen of only one mesh size. This single filter screen configuration has obvious limitations. First, different types of powdered pharmaceuticals have significant differences in their physical properties such as particle size, density, and flowability. As a result, in production practice, when different types of powdered pharmaceuticals need to be collected, the same equipment cannot be directly used. If the pharmaceutical characteristics require different requirements, the current filter screen often needs to be replaced to adapt to the new production and purity requirements, which increases time and cost in the production process.

[0004] Secondly, a collection device with a single fixed-mesh filter cannot meet diverse needs for different production processes and purity requirements. For example, some drugs require finer filtration to improve collection efficiency and purity, while others may have higher requirements for filtration process efficiency. Therefore, the existing single filter configuration limits the flexibility and adaptability of the equipment.

[0005] In view of this, the present invention solves the above technical problems by proposing a powder medicine collecting device. Summary of the Invention

[0006] In response to the shortcomings of the above-mentioned background technology, the present invention provides a technical solution for a powder medicine collection device. The present invention uses a rotary filter cartridge group to quickly switch the filtration accuracy according to the particle size, density and other characteristics of the powder medicine particles, without the need to replace the entire equipment, thereby meeting the diverse needs of different medicine production processes. At the same time, the same equipment can achieve multi-stage filtration (such as coarse screening followed by fine filtration), and by switching the filter cartridge mesh size in stages, the collection efficiency of complex medicines is improved.

[0007] The present invention provides the following technical solutions: a powder medicine collecting device, comprising a collecting cylinder;

[0008] The surface of the collecting cylinder is fixedly connected to a shell;

[0009] The inner cavity of the housing is rotatably connected to a connecting rod, one end of the connecting rod is fixedly connected to a mounting plate, and the other end is fixedly connected to a knob, the inner cavity of the mounting plate is slidably connected to four filter cartridges of different mesh sizes, and a first return spring is provided between the knob and the housing;

[0010] Two guide posts are fixedly connected to the surface of the housing, and connecting sleeves are slidably connected to the surfaces of the two guide posts. A second return spring is provided between the guide posts and the connecting sleeves. One end of the connecting sleeve extends into the inner cavity of the housing, and one end of the connecting sleeve is fixedly connected to a locking post.

[0011] The inner cavity of the collecting cylinder is rotatably connected to a rotating plate, a surface of the rotating plate is provided with an extrusion column, the interior of the shell is slidably connected to a top column, and a third reset spring is provided between the rotating plate and the collecting cylinder.

[0012] As a preferred technical solution of the present invention, two guide rods are fixedly connected to the inner wall of the collecting tube, and a movable tube is slidably connected to the surface of the guide rod, one end of the movable tube extends to the inner cavity of the shell, and a fourth reset spring is provided between the guide rod and the movable tube.

[0013] As a preferred technical solution of the present invention, a plurality of positioning columns are fixedly connected to the surface of the mounting plate, and a plurality of circular holes are opened at one end of the four filter cartridges, and the positions of the circular holes correspond to the positions of the positioning columns and the locking columns respectively.

[0014] As a preferred technical solution of the present invention, the axes of the movable tube and the connecting sleeve are both collinear with the axis of the filter cartridge, and the four filter cartridges on the mounting plate are arranged in a ring in descending order of mesh size.

[0015] As a preferred technical solution of the present invention, a disassembly hole is opened on the surface of the shell, the position of the disassembly hole corresponds to the position of the filter cartridge, the inner cavity of the disassembly hole is clamped with a mounting block, and the inner cavity of the mounting block is slidably connected with a clamping assembly.

[0016] As a preferred technical solution of the present invention, the snap-on assembly includes two locking blocks, which slide in the inner cavity of the mounting block. A slope is provided on one side of the two locking blocks, and a fifth reset spring is provided between the two locking blocks and the mounting block.

[0017] As a preferred technical solution of the present invention, the surface of the knob is provided with anti-slip grooves, the surfaces of the two guide columns are provided with a graphite coating, a dust cover is provided between the two locking blocks and the mounting block, the dust cover is made of elastic rubber material, the dust cover is provided in the sliding gap between the locking block and the mounting block, and the two ends of the dust cover are respectively glued and fixed to the surface of the locking block and the end face of the mounting block.

[0018] As a preferred technical solution of the present invention, the surface of the connecting sleeve is threadedly connected to a bellows, and the inner cavity of the bellows is threadedly connected to an extension tube.

[0019] As a preferred technical solution of the present invention, the top of the collecting cylinder is rotatably connected to a locking knob through a connecting column, and is detachably connected to a top cover through the locking knob.

[0020] As a preferred technical solution of the present invention, the top of the top cover is fixedly connected to a vacuum pump, and a filter element is provided at the air inlet end of the vacuum pump.

[0021] As a preferred technical solution of the present invention, a silicone sealing ring is provided on the contact end surface between the top cover and the collecting tube. When the locking knob is tightened, the silicone sealing ring is compressed to achieve a sealed connection between the top cover and the collecting tube.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention uses a rotary filter cartridge group to quickly switch the filtration accuracy according to the particle size, density and other characteristics of the powder medicine, without the need to replace the entire equipment, to meet the diverse needs of different medicine production processes. At the same time, the same equipment can achieve multi-stage filtration (such as coarse screening followed by fine filtration), and by switching the filter cartridge mesh size in stages, the collection efficiency of complex medicines is improved.

[0024] 2. The present invention realizes the "press-to-disassemble and insert-to-lock" of the filter cartridge assembly through the cooperation of the inclined locking block and the disassembly hole. Cleaning can be completed without professional tools, shortening maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 is a cross-sectional view of the present invention;

[0027] Figure 3 It is a partial enlarged view of the present invention;

[0028] Figure 4 This is a schematic diagram of the locking block structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the connecting sleeve structure of the present invention;

[0030] Figure 6 It is a schematic diagram of the mounting plate structure of the present invention;

[0031] Figure 7 It is the front view of the present invention;

[0032] Figure 8It is a schematic diagram of the filter cartridge structure of the present invention;

[0033] Figure 9 It is a schematic diagram of the movable tube structure of the present invention.

[0034] In the figure: 1. collecting cylinder; 101. shell; 2. connecting rod; 201. mounting plate; 202. knob; 203. filter cartridge; 204. first return spring; 3. guide column; 301. connecting sleeve; 302. second return spring; 303. locking column; 4. rotating plate; 401. extrusion column; 402. top column; 403. third return spring; 5. guide rod; 501. movable tube; 502. fourth return spring; 6. positioning column; 601. round hole; 7. disassembly hole; 701. mounting block; 8. locking block; 801. fifth return spring; 801. fifth return spring; 9. dust cover; 10. bellows; 1001. extension tube; 11. connecting column; 1101. locking knob; 1102. top cover; 12. vacuum pump; 1201. filter element. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See also Figure 1-9 As shown, a powder medicine collecting device includes a collecting cylinder 1;

[0037] The surface of the collecting cylinder 1 is fixedly connected with a shell 101;

[0038] The inner cavity of the housing 101 is rotatably connected to a connecting rod 2, one end of which is fixedly connected to a mounting plate 201, and the other end is fixedly connected to a knob 202. Four filter cartridges 203 of different mesh sizes are slidably connected to the inner cavity of the mounting plate 201. A first return spring 204 is provided between the knob 202 and the housing 101.

[0039] Two guide posts 3 are fixedly connected to the surface of the housing 101. A connecting sleeve 301 is slidably connected to the surface of the two guide posts 3. A second return spring 302 is provided between the guide posts 3 and the connecting sleeve 301. One end of the connecting sleeve 301 extends into the inner cavity of the housing 101. A locking post 303 is fixedly connected to one end of the connecting sleeve 301.

[0040] The inner cavity of the collecting cylinder 1 is rotatably connected to a rotating plate 4, the surface of which is provided with an extrusion column 401, and the interior of the housing 101 is slidably connected to a top column 402, and a third return spring 403 is provided between the rotating plate 4 and the collecting cylinder 1;

[0041] Two guide rods 5 are fixedly connected to the inner wall of the collecting tube 1. A movable tube 501 is slidably connected to the surface of the guide rod 5. One end of the movable tube 501 extends into the inner cavity of the shell 101. A fourth return spring 502 is provided between the guide rod 5 and the movable tube 501.

[0042] The surface of the mounting plate 201 is fixedly connected to a plurality of positioning posts 6. One end of the four filter cartridges 203 is provided with a plurality of circular holes 601. The positions of the circular holes 601 correspond to the positions of the positioning posts 6 and the locking posts 303 respectively.

[0043] The positioning post 6 is inserted into the circular hole 601 to achieve the initial positioning of the filter cartridge 203, thereby preventing the filter cartridge 203 from rotating or misaligning during installation;

[0044] The locking post 303 is locked twice through the circular hole 601. The double positioning ensures that the filter cartridge 203 is stable during the collection process to avoid filtration deviation caused by vibration.

[0045] The axes of the movable tube 501 and the connecting sleeve 301 are both collinear with the axes of the filter cartridges 203. The four filter cartridges 203 on the mounting plate 201 are arranged in a circular pattern in descending order of mesh size.

[0046] The surface of the housing 101 is provided with a disassembly hole 7, the position of the disassembly hole 7 corresponds to the position of the filter cartridge 203, the inner cavity of the disassembly hole 7 is clamped with a mounting block 701, and the inner cavity of the mounting block 701 is slidably connected with a clamping assembly;

[0047] The disassembly hole 7 provides a direct removal channel for the filter cartridge 203 without disassembling the entire housing 101, thus simplifying the maintenance process;

[0048] The clamping assembly includes two locking blocks 8, which slide in the inner cavity of the mounting block 701. One side of each locking block 8 is provided with an inclined surface. A fifth return spring 801 is provided between the two locking blocks 8 and the mounting block 701.

[0049] The inclined surface design of the locking block 8 automatically compresses the fifth return spring 801 when the mounting block 701 is inserted into the disassembly hole 7. After the fifth return spring 801 is in place, it resets and pushes the locking block 8 to clamp the hole wall, thereby realizing rapid disassembly and assembly of the mounting block 701 and improving maintenance efficiency.

[0050] The surface of the knob 202 is provided with anti-slip grooves, and the surfaces of the two guide pillars 3 are provided with a graphite coating. A dust cover 9 is provided between the two locking blocks 8 and the mounting block 701. The dust cover 9 is made of elastic rubber and is provided in the sliding gap between the locking blocks 8 and the mounting block 701. The ends of the dust cover 9 are respectively glued to the surface of the locking block 8 and the end face of the mounting block 701;

[0051] The thickness of the graphite coating on the surface of the guide post 3 is selected according to actual use requirements, and molybdenum disulfide particles are added to the graphite coating to enhance lubricity;

[0052] The dust cover 9 slides and retracts with the locking block 8 to prevent powder from entering the sliding gap, avoiding the locking block 8 from getting stuck due to powder accumulation, extending the service life of the clamping assembly and reducing maintenance frequency;

[0053] The surface of the connecting sleeve 301 is threadedly connected to the bellows 10, and the inner cavity of the bellows 10 is threadedly connected to the extension tube 1001;

[0054] The top of the collecting cylinder 1 is connected to the locking knob 1101 by rotating through the connecting column 11, and the top cover 1102 is detachably connected through the locking knob 1101;

[0055] The top of the top cover 1102 is fixedly connected to the vacuum pump 12, and the air inlet end of the vacuum pump 12 is provided with a filter element 1201;

[0056] The vacuum pump 12 provides negative pressure suction to accelerate the powder to gather toward the filter cartridge 203, thereby improving the collection efficiency; the filter element 1201 prevents the powder from being sucked into the pump body, thereby extending the life of the vacuum pump;

[0057] A silicone seal ring is provided on the contact end surface between the top cover 1102 and the collecting tube 1. When the locking knob 1101 is tightened, the silicone seal ring is compressed to achieve a sealed connection between the top cover 1102 and the collecting tube 1.

[0058] The locking knob 1101 enables quick disassembly of the top cover 1102, making it easy to clean the interior of the collection tube 1; the silicone sealing ring is compressed to form a seal, preventing negative pressure leakage and ensuring airtightness during the collection process;

[0059] Powder collection operation process;

[0060] Startup preparation: First, turn on the vacuum pump 12 to create a power source for powder collection through the negative pressure suction force it generates; the operator holds the handle on the surface of the bellows 10 and adjusts the pointing angle of the bellows 10 and the extension tube 1001 to ensure that the suction port of the extension tube 1001 is accurately aligned with the powdered medicine to be collected;

[0061] Collection process: Under the suction of the vacuum pump 12, the powdered medicine enters the inner cavity of the connecting sleeve 301 through the extension tube 1001 and the bellows 10 in sequence; then, the powder enters the filter cartridge 203 along with the air flow.

[0062] Powders that meet the mesh requirements and have a particle size smaller than the filter hole size can penetrate the filter hole and enter the inner cavity of the collection tube 1 through the movable tube 501 to be collected;

[0063] Powders that do not meet the mesh count requirements and have a particle size larger than the filter pore size are intercepted and temporarily stored in the inner cavity of the filter cartridge 203 to avoid contamination of the target powder in the collection cartridge 1;

[0064] Processing after collection is completed: When the powder in the collection tube 1 needs to be poured out, first rotate the locking knob 1101 to align it with the opening slot of the top cover 1102 (to release the locking state between the top cover and the collection tube); lift the top cover 1102 upwards to separate the top cover and the collection tube 1, and then the powder in the collection tube 1 can be poured out;

[0065] When it is necessary to change the filter mesh of the filter cartridge 203 (e.g., switch from high precision to low precision), follow the steps below:

[0066] Unlock the filter cartridge:

[0067] Hold the knob 202 and press it toward the housing 101. The knob 202 pushes the mounting plate 201 to move synchronously via the connecting rod 2, compressing the first return spring 204.

[0068] When the mounting plate 201 moves, the filter cartridge 203 is pressed toward the movable tube 501. The movable tube 501 slides along the guide rod 5 and compresses the fourth return spring 502. (Because the elastic coefficient of the fourth return spring is relatively small, the circular hole 601 at the end of the filter cartridge 203 remains in the socketed state with the positioning post 6, ensuring that the filter cartridge does not deviate when moving.)

[0069] On the other hand, the mounting plate 201 squeezes the squeezing post 401, pushing the rotating plate 4 to tilt around the fulcrum. The other end of the rotating plate 4 pushes the pushing post 402 to move toward the connecting sleeve 301. The pushing post 402 pushes the connecting sleeve 301 to slide along the guide post 3 and compresses the second return spring 302. At the same time, the connecting sleeve 301 drives the locking post 303 to disengage from the circular hole 601 at the end of the filter cartridge 203, completing the unlocking of the filter cartridge.

[0070] Rotate to switch mesh size:

[0071] After the filter cartridge 203 is unlocked, the knob 202 is rotated to drive the filter cartridge 203 to rotate through the connecting rod 2 and the mounting plate 201 until the filter holes of the target mesh size are aligned with the powder outlet of the connecting sleeve 301.

[0072] Reset Lockout:

[0073] Loosen the knob 202, and the return springs rebound and reset in sequence:

[0074] The first return spring 204 pushes the mounting plate 201 back to its original position, driving the filter cartridge 203 to be pressed toward the movable tube 501;

[0075] The third return spring 403 pulls the rotating plate 4 back to its original position, and the top column 402 loses its thrust;

[0076] The second return spring 302 pushes the connecting sleeve 301 back to its original position, and the locking post 303 is re-engaged in the circular hole 601 of the filter cartridge 203, completing the locking of the filter cartridge;

[0077] The fourth return spring 502 pushes the movable tube 501 back to its original position, and its end is tightly attached to the powder outlet end of the filter cartridge 203 to ensure sealing;

[0078] When it is necessary to clean the coarse powder trapped in the inner cavity of the filter cartridge 203:

[0079] Removing the mounting block: Simultaneously press the two locking blocks 8 inward to overcome the elastic force of the fifth return spring 801 and move toward the center until the locking block 8 is completely disengaged from the engaging groove of the housing 101; pull the mounting block 701 out of the removal hole 7 to expose the installation position of the filter cartridge 203 (because the removal hole 7 corresponds to the position of the filter cartridge 203);

[0080] Remove the filter cartridge: Remove the filter cartridge 203 directly from the mounting plate 201 and clean the coarse particles trapped in its inner cavity;

[0081] Reinstall the filter cartridge and the mounting block: After cleaning, re-sleeve the filter cartridge 203 on the positioning column 6; align the mounting block 701 with the disassembly hole 7 and insert it, using the inclined surface design of the locking block 8 (when inserting, the mounting block 701 squeezes the inclined surface of the locking block 8, forcing the locking block 8 to compress the fifth return spring 801 and retract). After the mounting block is fully in place, the fifth return spring 801 rebounds and pushes the locking block 8 into the snap-in groove of the housing 101, thereby achieving rapid locking of the mounting block 701.

[0082] It should be noted that, in this document, relational terms such as first and, second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. At the same time, in the drawings of the present invention, fill patterns are only used to distinguish layers and do not make any other limitations.

[0083] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A powder medicine collecting device, comprising: Collection tube (1); The feature is that: a shell (101) is fixedly connected to the surface of the collecting cylinder (1); The inner cavity of the housing (101) is rotatably connected to a connecting rod (2), one end of the connecting rod (2) is fixedly connected to a mounting plate (201), and the other end is fixedly connected to a knob (202), the inner cavity of the mounting plate (201) is slidably connected to four filter cartridges (203) of different mesh sizes, and a first return spring (204) is provided between the knob (202) and the housing (101); Two guide posts (3) are fixedly connected to the surface of the housing (101), and connecting sleeves (301) are slidably connected to the surfaces of the two guide posts (3). A second return spring (302) is provided between the guide posts (3) and the connecting sleeve (301), and one end of the connecting sleeve (301) extends to the inner cavity of the housing (101), and one end of the connecting sleeve (301) is fixedly connected to a locking post (303); The inner cavity of the collecting cylinder (1) is rotatably connected to a rotating plate (4), a surface of the rotating plate (4) is provided with an extrusion column (401), the interior of the shell (101) is slidably connected to a top column (402), and a third return spring (403) is provided between the rotating plate (4) and the collecting cylinder (1).

2. A powder medicine collecting device according to claim 1, characterized in that: Two guide rods (5) are fixedly connected to the inner wall of the collecting cylinder (1); a movable tube (501) is slidably connected to the surface of the guide rod (5); one end of the movable tube (501) extends to the inner cavity of the shell (101); and a fourth return spring (502) is provided between the guide rod (5) and the movable tube (501).

3. A powder medicine collecting device according to claim 1, characterized in that: A plurality of positioning posts (6) are fixedly connected to the surface of the mounting plate (201), and a plurality of circular holes (601) are opened at one end of the four filter cartridges (203), and the positions of the circular holes (601) respectively correspond to the positions of the positioning posts (6) and the locking posts (303).

4. A powder medicine collecting device according to claim 2, characterized in that: The axes of the movable tube (501) and the connecting sleeve (301) are both collinear with the axis of the filter cartridge (203), and the four filter cartridges (203) on the mounting plate (201) are arranged in a circular pattern in descending order of mesh size.

5. The powder medicine collecting device according to claim 1, characterized in that: A disassembly hole (7) is provided on the surface of the housing (101), the position of the disassembly hole (7) corresponds to the position of the filter cartridge (203), the inner cavity of the disassembly hole (7) is clamped with a mounting block (701), and the inner cavity of the mounting block (701) is slidably connected with a clamping assembly.

6. A powder medicine collecting device according to claim 5, characterized in that: The clamping assembly comprises two locking blocks (8), the two locking blocks (8) slide in the inner cavity of the mounting block (701), one side of the two locking blocks (8) is provided with an inclined surface, and a fifth reset spring (801) is provided between the two locking blocks (8) and the mounting block (701).

7. The powder medicine collecting device according to claim 1, characterized in that: The surface of the knob (202) is provided with anti-slip grooves, the surfaces of the two guide pillars (3) are both provided with a graphite coating, a dust cover (9) is provided between the two locking blocks (8) and the mounting block (701), the dust cover (9) is made of elastic rubber material, the dust cover (9) is provided in the sliding gap between the locking block (8) and the mounting block (701), and the two ends of the dust cover (9) are respectively glued and fixed to the surface of the locking block (8) and the end face of the mounting block (701).

8. The powder medicine collecting device according to claim 1, characterized in that: The surface of the connecting sleeve (301) is threadedly connected to a bellows (10), and the inner cavity of the bellows (10) is threadedly connected to an extension tube (1001).

9. The powder medicine collecting device according to claim 1, characterized in that: The top of the collecting cylinder (1) is connected to a locking knob (1101) by rotating through a connecting column (11), and is detachably connected to a top cover (1102) through the locking knob (1101).

10. A powder medicine collecting device according to claim 9, characterized in that: The top of the top cover (1102) is fixedly connected to a vacuum pump (12), and a filter element (1201) is provided at the air inlet end of the vacuum pump (12).

11. A powder medicine collecting device according to claim 10, characterized in that: The contact end surface between the top cover (1102) and the collecting cylinder (1) is provided with a silicone sealing ring. When the locking knob (1101) is tightened, the silicone sealing ring is compressed to achieve a sealed connection between the top cover (1102) and the collecting cylinder (1).

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