Sub-packaging device for granular powder medicine

Abstract

The utility model provides a subpackaging device for granular powder medicine, which comprises a support, a cavity vertically arranged on the support and an adjusting part positioned in the cavity, the cavity is divided into a storage chamber and a metering chamber by the adjusting part, the adjusting part comprises a vibration component and a reducing component which are arranged up and down, the vibration component drives an elastic shifting piece to swing through a rotating shaft, and the elastic shifting piece is driven by the rotating shaft to rotate. And the variable-diameter assembly drives sliding plates distributed in the circumferential direction through a rotating plate, the sliding plates get close to or away from the center of the flow passing channel, the flow passing area is changed, and precise subpackaging is achieved. In addition, each component of the device adopts a detachable design, for example, the support is detachably connected with the metering chamber, so that parts, such as the cavity and the adjusting part, which are easy to remain medicine powder, can be conveniently cleaned after disassembly; the rotatable cover body of the feeding port and the magnetic suction sealing cover baffle of the discharging port can effectively block dust when not used, and the cleaning frequency is reduced. The device effectively solves the problems of inaccurate split charging, inconvenient cleaning and the like in the prior art, and improves the split charging efficiency and accuracy of medicines.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical packaging equipment technology, specifically to a packaging device for granular powder medicines. Background Technology

[0002] Granules are granular preparations made from drugs and suitable excipients, commonly used as oral solid dosage forms, which can be swallowed directly or dissolved in water. Granules are widely used due to their convenience and rapid dissolution, especially when administering smaller doses to children, requiring precise dispensing. However, in practice, granules or powders may not be administered in whole packets based on a child's weight or age. Families may estimate the dosage, and even medical personnel may find it difficult to accurately dispense the correct amount. Furthermore, when granules or powders are dispensed according to a prescription, dosage is often estimated visually or using simple containers, which can easily lead to inaccurate dosage and affect treatment efficacy.

[0003] In existing technologies, some granular drug dispensers improve metering accuracy through graduation devices. For example, the dispenser disclosed in Chinese patent CN208264996U uses a graduation tube and a drug delivery chamber structure, and uses mechanical limiting to slow down the granule addition speed to achieve dosage control. Although this type of technology improves dispensing accuracy to some extent through graduation design, it still has significant shortcomings: because existing devices mostly use fixed apertures or structures with low adjustment flexibility, they cannot flexibly control the flow rate according to the viscosity, agglomeration, and other characteristics of different drug granules, leading to problems such as material blockage or poor flow during dispensing, especially when handling highly viscous drugs; at the same time, most dispensers have complex structures and non-removable storage containers, which easily accumulate drug powder and dust after long-term use, making them difficult to clean and posing serious hygiene and safety hazards; in addition, drug leakage or waste is common during dispensing, resulting in a large deviation between the actual dose and the preset value, further affecting the reliability of the medication effect. Therefore, how to develop a granular powder drug dispensing device with adjustable flow control and an easily removable and cleanable structure is an urgent problem to be solved. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a dispensing device for granular powder medicines, including a support, a cavity vertically arranged on the support, and an adjustment part located in the cavity. The adjustment part enables smooth and unobstructed material feeding, precise control of the flow rate and feeding speed of the medicine, thereby ensuring the accuracy of the dispensing dosage. It is also easy to operate and clean, ensuring the efficiency and safety of medicine dispensing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dispensing device for granular or powdered pharmaceutical products includes: a support; a cavity vertically arranged on the support; and an adjustment unit disposed within the cavity to divide the internal space of the cavity into a storage chamber and a metering chamber arranged vertically. The top of the storage chamber has an inlet for receiving granular or powdered pharmaceutical products, and the bottom of the metering chamber has an outlet for discharging metered granular or powdered pharmaceutical products. The adjustment unit includes a vertically arranged vibration assembly and a diameter-changing assembly. The vibration assembly includes a plurality of elastic levers symmetrically arranged at the bottom of the storage chamber, and a lever rotatably inserted through the elastic lever. The variable diameter assembly includes a rotating shaft between the elastic levers, which drives the elastic levers to swing up and down by rotation; the variable diameter assembly includes a flat plate fixed to the inner wall of the metering chamber and a rotating plate located above the flat plate. Both the rotating plate and the flat plate are coaxially provided with communication ports, and the two communication ports together form a flow channel. Multiple sliding plates are slidably arranged between the rotating plate and the flat plate. The sliding plates are distributed circumferentially along the rotating plate. By rotating the rotating plate, the multiple sliding plates are driven to move synchronously, so that the sliding plates move closer to or away from the center area of ​​the flow channel, thereby changing the flow area of ​​the flow channel.

[0007] According to one example, the support includes a base plate and a support plate, one end of the support plate being fixed to the base plate, and the other end of the support plate extending vertically upward and being fixed to the outer wall of the storage chamber.

[0008] According to one example, the base plate is provided with a top-open receiving box, which corresponds to the discharge port.

[0009] According to one example, a connecting column is provided on one side of the support plate, and a support rod is horizontally provided on the outer wall of the metering chamber, the support rod being detachably connected to the connecting column.

[0010] According to one example, the feed inlet is rotatably provided with a cover.

[0011] According to one example, the outer wall of the metrology chamber is provided with scale lines along its length.

[0012] According to one example, the discharge port is provided with a sealing baffle, which is magnetically connected to the discharge port.

[0013] According to one example, the circumferential wall of the rotating shaft is provided with a plurality of locking teeth, the fixed end of the elastic lever is rotatably connected to the inner wall of the storage chamber, and the free end of the elastic lever is located between two adjacent locking teeth.

[0014] According to one example, the rotating plate is provided with a plurality of first sliding grooves in the circumferential direction, and the upper part of the sliding plate is provided with a pin, which is slidably disposed in the first sliding groove; the flat plate is provided with a plurality of second sliding grooves in the circumferential direction, and the lower part of the sliding plate is provided with a slider, which is slidably disposed in the second sliding groove.

[0015] According to one example, a rotating ring is also provided on the circumferential wall of the rotating plate.

[0016] This utility model has the following advantages:

[0017] This invention relates to a dispensing device comprising an adjustment unit, which includes a vibrating assembly and a variable diameter assembly arranged vertically, enabling precise dispensing and convenient maintenance. The cavity is divided into a storage chamber and a metering chamber. The vibrating assembly drives symmetrically arranged elastic levers to swing up and down via teeth on a rotating shaft, effectively eliminating drug clumping and accumulation, promoting smooth drug flow, and solving the problem of uneven initial feed density. The variable diameter assembly utilizes a rotating plate to drive circumferentially distributed fan-shaped sliding plates. Through a linkage structure of double sliding grooves, pins, and sliders, the flow area of ​​the flow channel can be continuously adjusted, allowing for precise flow control based on drug characteristics. Furthermore, the connections of each component are detachable; for example, the cavity, adjustment unit, and support are all detachable, facilitating cleaning, preventing dust contamination, and improving hygiene and safety. This device has a wide range of applications, suitable for scenarios involving the precise weighing and dispensing of small-dose granules and powders, such as the quantitative dispensing of powders in home medication or clinical administration. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the dispensing device for granular powder medicines according to this utility model.

[0019] Figure 2 This is a cross-sectional view of the packaging device of this utility model.

[0020] Figure 3 This is a structural schematic diagram of the vibration component of this utility model.

[0021] Figure 4 This is a top view of the variable diameter assembly of this utility model.

[0022] Figure 5 This is a schematic diagram showing the slide plate of this utility model moving towards or away from the center area of ​​the flow channel.

[0023] Wherein, 1 is a support, 101 is a base plate, 102 is a support plate, 103 is a receiving box, 104 is a connecting column, 2 is a cavity, 201 is a storage chamber, 201a is a feed inlet, 201b is a cover, 202 is a metering chamber, 202a is a discharge outlet, 202b is a support rod, 202c is a scale line, 202d is a sealing baffle, 3 is an adjustment part, 301 is a vibration assembly, 301a is an elastic paddle, 301a1 is a connecting rod, 301b is a rotating shaft, 301b1 is a retaining tooth, 302 is a diameter changing assembly, 3a is a flow channel, 302a is a flat plate, 302a1 is a second slide groove, 302b is a rotating plate, 302b1 is a connecting port, 302b2 is a first slide groove, 302c is a sliding plate, 302c1 is a pin, and 302d is a rotating ring. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] Reference Figure 1 and Figure 2 The illustration shows an embodiment of a dispensing device for granular powder medicines. The device mainly includes a support 1, a cavity 2, and an adjustment part 3. The adjustment part 3 includes a vibration component 301 and a variable diameter component 302. The linkage design of the adjustment part 3 realizes the dual functions of preventing material blockage and precise flow control. The vibration component 301 promotes the flow of medicine through mechanical oscillation, and the variable diameter component 302 controls the flow rate through an adjustable aperture structure. The two work together to ensure the accuracy of the dispensing dosage.

[0026] Reference Figure 1 and Figure 2 The support 1 adopts a split structure design, which includes a base plate 101 and a support plate 102. The base plate 101 has an L-shaped structure, and its upper surface is stepped. The upper stepped surface is used to fix the support plate 102, and the lower stepped surface corresponds to the installation position of the storage chamber 201 of the cavity 2. This layout allows the cavity 2 and the base plate 101 to form a staggered support, effectively distributing the overall weight of the device and avoiding localized deformation. The lower surface of the base plate 101 is provided with an anti-slip silicone pad with a thickness of 2-4mm, which increases friction to ensure that the device is stable and does not shift on the operating table.

[0027] The support plate 102 is a plate structure, with one end fixed to one end of the base plate 101 and the other end extending vertically upward and fixed to the cavity 2. The other end of the support plate 102 is connected to the outer wall of the storage chamber 201, while one side of the support plate 102 is also fixed to the outer wall of the measuring chamber 202. A connecting column 104 is provided on one side of the support plate 102, and a support rod 202b is horizontally provided on the outer wall of the measuring chamber 202. The support rod 202b is detachably connected to the connecting column 104. Specifically, a threaded hole is provided at the end of the connecting column 104, forming a detachable threaded connection with the horizontally extending support rod 202b on the outer wall of the measuring chamber 202. This provides stable support between the cavity 2 and the support 1, and facilitates later disassembly and maintenance. Alternatively, a snap-fit ​​connection or keyed connection could also be used.

[0028] Reference Figure 2 The cavity 2 is vertically arranged and roughly cylindrical in shape. Its inner wall is mirror-polished, resulting in a smooth and flat surface that effectively reduces the adhesion and residue of drug particles or powder on the inner wall of the cavity 2. An adjustment unit 3 is located within the cavity 2 to divide its internal space into a storage chamber 201 and a metering chamber 202 arranged vertically. The top of the storage chamber 201 has an inlet 201a for receiving granular or powdered drugs, and the bottom of the metering chamber 202 has an outlet 202a for discharging metered granular or powdered drugs. The types of drugs include, but are not limited to, powders and granules. The storage chamber 201, adjustment unit 3, and metering chamber 202 are all detachably connected for easy disassembly and cleaning.

[0029] The storage chamber 201 has a funnel-shaped structure, wider at the top and narrower at the bottom. Its outer wall is marked with graduations to facilitate accurate measurement of the added medication by operators. The inlet 201a at the top of the storage chamber 201 has internal threads, and the lower end of the cover 201b has matching external threads, achieving a sealed connection through thread engagement. An annular silicone sealing ring is embedded in the lower edge of the cover 201b. When the cover 201b is tightened, the sealing ring fits tightly against the end face of the inlet 201a, effectively preventing external dust and impurities from entering the chamber 2. Additionally, multiple raised strips on the circumferential wall of the cover 201b facilitate easy gripping, allowing users to easily open or tighten the cover 201b.

[0030] The discharge port 202a at the bottom of the metering chamber 202 is a circular through hole, and a magnetic sealing baffle 202d is installed at the discharge port 202a. A first annular magnet is embedded in the edge of the sealing baffle 202d, which attracts the second annular magnet located at the discharge port 202a, ensuring that the sealing baffle 202d has good sealing performance when closed. Users can open or close the sealing baffle 202d at any time as needed to prevent the medicine from leaking out.

[0031] A top-open receiving box 103 is detachably mounted on the base plate 101. The receiving box 103 corresponds to the discharge port 202a of the metering chamber 202 and is used to receive the packaged granular or powdered medicines that fall from the discharge port 202a. The receiving box 103 and the base plate 101 are designed to be detachable to ensure convenient cleaning, avoid the accumulation of medicine residue, and ensure cleanliness and hygiene.

[0032] The outer wall of the measuring chamber 202 is provided with a scale line 202c along its length. The smallest division of the scale line 202c is 0.01ml, which is used to display the amount of medicine dispensed. The measuring chamber 202 is made of transparent material, which makes it easy for users to observe the volume of the medicine and ensure accurate measurement.

[0033] Reference Figure 2 The regulating unit 3 includes a vibration component 301 and a diameter-changing component 302 arranged vertically. The vibration component 301 is used to ensure that the medicine in the storage chamber 201 falls smoothly, and the diameter-changing component 302 is used to control the amount of granular or powdery medicine entering the metering chamber 202. This arrangement allows the medicine to pass through vibration loosening and flow regulation from top to bottom in sequence, forming a continuous dispensing process.

[0034] Reference Figure 3 The vibration assembly 301 includes multiple elastic paddles 301a symmetrically arranged at the bottom of the storage chamber 201, and a rotating shaft 301b rotatably passing between the elastic paddles 301a. The rotating shaft 301b drives the elastic paddles 301a to swing up and down by rotation, thereby promoting the flow of medicine in the storage chamber 201. In this embodiment, the vibration assembly 301 consists of four elastic paddles 301a and a rotating shaft 301b. The four elastic paddles 301a are symmetrically arranged in pairs at the bottom of the storage chamber 201. This arrangement allows the energy generated by vibration to be evenly distributed to all corners of the storage chamber 201, effectively avoiding dead corners where medicine accumulates and preventing medicine from clogging in the storage chamber 201. This is especially suitable for medicines that are sticky or prone to clumping. At the same time, through the dynamic effect of vibration, it solves the problems of inconsistent particle or powder voids, uneven bulk density, and inaccurate measurement in the initial feeding and subsequent feeding of medicine.

[0035] The rotating shaft 301b is a cylindrical rod, whose two ends are rotatably fixed to the two opposite inner walls of the storage chamber 201 via bearing seats, and the rotating shaft 301b passes through the position between the four elastic levers 301a. Multiple strip-shaped teeth 301b1 are evenly distributed on the circumferential wall of the rotating shaft 301b. The teeth 301b1 are spaced apart along the circumference of the rotating shaft 301b and extend radially, forming a toothed ring structure around the rotating shaft 301b. The spacing between two adjacent teeth 301b1 is equal, so that the rotating shaft 301b can generate a stable and regular force on the elastic levers 301a when rotating. The elastic levers 301a have a long strip-shaped structure, and their fixed ends are rotatably connected to the inner wall of the storage chamber 201 via connecting rods 301a1, allowing the elastic levers 301a to swing up and down around the axis of connecting rods 301a1. The free end of the elastic paddle 301a is engaged in the groove between two adjacent teeth 301b1, forming a tooth-paddle meshing transmission.

[0036] For example, when the rotating shaft 301b rotates clockwise, the circumferentially distributed teeth 301b1 sequentially push the free end of the elastic lever 301a upwards. As the teeth 301b1 continue to rotate, the elastic lever 301a falls back due to its own elasticity, thus forming a periodic up-and-down swing. When the medicine enters the storage chamber 201 from the feed inlet 201a, it will accumulate on top of the vibration component 301. At this time, the operator can manually rotate the rotating shaft 301b two revolutions to initially loosen the accumulated medicine using the initial vibration of the elastic lever 301a, reducing the differences in inter-particle voids and uneven bulk density caused by different feeding methods. When metering and dispensing are required, the number of rotations and speed of the rotating shaft 301b can be adjusted according to the physical characteristics of the medicine, such as particle size and viscosity. For example, for drugs with larger particle size and better flowability, the number of rotations can be reduced appropriately; while for drugs with smaller particle size and higher viscosity, the number of rotations and speed should be increased to ensure that the drug can fall smoothly. The specific number of rotations can be adjusted according to the particle size and viscosity of the drug.

[0037] Reference Figure 4 and Figure 5The variable diameter assembly 302 includes a flat plate 302a fixed to the inner wall of the metering chamber 202 and a rotating plate 302b located above the flat plate 302a. Both the rotating plate 302b and the flat plate 302a are coaxially provided with a connecting port 302b1. The two connecting ports 302b1 together form a flow channel 3a. Multiple sliding plates 302c are slidably arranged between the rotating plate 302b and the flat plate 302a. The sliding plates 302c are distributed circumferentially along the rotating plate 302b. By rotating the rotating plate 302b, the multiple sliding plates 302c are driven to move synchronously, so that the sliding plates 302c move closer to or away from the center area of ​​the flow channel 3a, thereby changing the flow area of ​​the flow channel 3a. Through the relative movement of the rotating plate 302b and the flat plate 302a, the multiple sliding plates 302c are driven to contract or expand synchronously, so as to achieve precise control of the flow area of ​​the flow channel 3a. Among them, the plate 302a is a circular plate with its edge fixed to the inner wall of the metering chamber 202 to ensure stability during the flow of medicine. The connecting port 302b1 of the plate 302a and the rotating plate 302b are both located at their center and have the same diameter. The rotating plate 302b is snapped into the annular through groove formed on the outer wall of the metering chamber 202 and extends radially to the outside. The rotating plate 302b located on the outside is fitted with a rotating ring 302d to facilitate rotation by the operator.

[0038] Continue to refer to Figure 4 and Figure 5Multiple sliding plates 302c are evenly distributed between the rotating plate 302b and the flat plate 302a. The sliding plates 302c are fan-shaped and arranged radially along the circumference of the rotating plate 302b. The upper and lower parts of each sliding plate 302c are connected to the rotating plate 302b and the flat plate 302a respectively via a pin 302c1 and a slider, forming a two-degree-of-freedom sliding structure. Specifically, multiple straight first grooves 302b2 extend tangentially along the circumferential direction on the rotating plate 302b, each groove being evenly spaced. A cylindrical pin 302c1 is provided on the upper part of the sliding plate 302c, and the pin 302c1 is slidably disposed in the first groove 302b2. Correspondingly, multiple straight second grooves 302a1 are also provided tangentially along the circumference on the flat plate 302a. A strip slider (not shown in the figure) is provided on the lower part of the sliding plate 302c, and the strip slider is slidably disposed in the second groove 302a1. Driven by the rotating plate 302b, the slide plate 302c can achieve tangential displacement along the first slide groove 302b2 and radial movement through the constraint of the second slide groove 302a1. For example, when the rotating plate 302b rotates clockwise, the slide plate 302c, under the synergistic effect of the two slide grooves, synchronously converges towards the center of the flow channel 3a to form a through hole smaller than the connecting opening 302b1, reducing the flow area; when rotating counterclockwise, it expands outward, increasing the flow area. This structure achieves precise and stable adjustment of the area of ​​the flow channel 3a through geometric constraints and motion coupling. In this embodiment, there are six slide plates 302c. The six slide plates 302c converge towards the center of the flow channel 3a simultaneously, and the inner edges of the six slide plates 302c are spliced ​​together to form a hexagonal through hole smaller than the connecting opening 302b1. Users can precisely control the aperture size of the flow channel 3a by rotating the rotating plate 302b to adapt to the dispensing requirements of different granular drugs. By adjusting the orifice diameter, the dispensing device can flexibly adjust the flow rate of the drug to meet the requirements of precise drug dosage control. In an embodiment not shown, sealing strips are provided between the rotating plate 302b and the sliding plate 302c, as well as between the sliding plate 302c and the plate 302a, to prevent particulate or powdered drugs from leaking into spaces outside the flow channel 3a.

[0039] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention should be considered equivalent substitutions and are included within the protection scope of the present invention. The embodiments described in this disclosure are intended as non-limiting examples, and other embodiments may take various and alternative forms. Furthermore, the drawings are not necessarily to scale and may present simplified expressions of various features of the present disclosure, including, for example, specific dimensions, orientations, positions, and shapes. Details associated with such features will be determined in part by the intended application and usage environment of the described embodiments.

[0040] The detailed description and accompanying drawings are supporting and descriptive of this teaching, but the scope of this teaching is defined only by the claims. While the best mode and some other embodiments for carrying out this teaching have been described in detail, various alternative designs and embodiments exist for practicing the teaching as defined in the appended claims. Furthermore, this disclosure expressly includes combinations and sub-combinations of the elements and features set forth above and below.

Claims

1. A dispensing device for a granular powder medicament, characterized in that, include: Support; A cavity vertically arranged on the support; An adjustment unit is disposed within the cavity to divide the internal space of the cavity into a storage chamber and a metering chamber arranged vertically. The top of the storage chamber has an inlet for receiving granular or powdered medicine, and the bottom of the metering chamber has an outlet for discharging metered granular or powdered medicine. The adjustment unit includes a vibration assembly and a diameter-changing assembly arranged vertically. The vibration assembly includes a plurality of elastic paddles symmetrically arranged at the bottom of the storage chamber, and a rotating shaft rotatably passing through the elastic paddles. The rotating shaft drives the elastic paddles to swing up and down by rotating. The variable diameter assembly includes a flat plate fixed to the inner wall of the metering chamber and a rotating plate located above the flat plate. Both the rotating plate and the flat plate are coaxially provided with communication ports, and the two communication ports together form a flow channel. Multiple sliding plates are slidably arranged between the rotating plate and the flat plate. The sliding plates are distributed circumferentially along the rotating plate. By rotating the rotating plate, the multiple sliding plates are driven to move synchronously, causing the sliding plates to move closer to or away from the center area of ​​the flow channel, thereby changing the flow area of ​​the flow channel.

2. The dispensing device of claim 1, wherein, The support includes a base plate and a support plate. One end of the support plate is fixed to the base plate, and the other end of the support plate extends vertically upward and is fixed to the outer wall of the storage chamber.

3. The dispensing device of claim 2, wherein, The base plate is provided with a receiving box with an open top, which corresponds to the discharge port.

4. The dispensing device of claim 2, wherein, A connecting column is provided on one side of the support plate, and a support rod is horizontally provided on the outer wall of the metering chamber. The support rod is detachably connected to the connecting column.

5. The unitized device of claim 1, wherein, A cover is rotatably provided at the feed inlet.

6. The dispensing device according to claim 1, characterized in that, The outer wall of the metrology chamber is provided with scale lines along its length.

7. The dispensing device according to claim 1, characterized in that, The discharge port is equipped with a sealing baffle, which is magnetically connected to the discharge port.

8. The dispensing device according to claim 1, characterized in that, The circumferential wall of the rotating shaft is provided with multiple locking teeth. The fixed end of the elastic lever is rotatably connected to the inner wall of the storage chamber, and the free end of the elastic lever is located between two adjacent locking teeth.

9. The dispensing device according to claim 1, characterized in that, The rotating plate is provided with a plurality of first sliding grooves in the circumferential direction, and the upper part of the sliding plate is provided with a pin, which is slidably disposed in the first sliding groove; the flat plate is provided with a plurality of second sliding grooves in the circumferential direction, and the lower part of the sliding plate is provided with a slider, which is slidably disposed in the second sliding groove.

10. The dispensing device according to claim 1, characterized in that, A rotating ring is also provided on the circumferential wall of the rotating plate.

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