A device for grinding pediatric tablets

Abstract

The application discloses a medicine tablet grinding device for paediatrics, and particularly relates to the technical field of medical devices, which comprises a shell, a cover plate is rotationally connected to the upper end of the shell, a controller is fixedly installed on one side of the upper end of the shell, a buckle is fixedly and jointly installed at the front end of the cover plate and the shell, a powder grinder is arranged in the inner cavity of the shell, and a finished product drawer is slidably connected to the bottom wall of the inner cavity of the shell. The medicine tablet grinding device for paediatrics is used for guiding medicine tablets into a primary crushing structure through a feeding structure, crushing the medicine tablets through the action of the primary crushing structure, and further grinding the material into the secondary crushing structure through the cooperation of the primary crushing structure, so that the medicine powder which is agglomerated due to grinding is separated through the action of the secondary crushing structure, and the medicine powder is in a loose state, which is convenient for feeding children patients.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a device for grinding pediatric tablets. Background Technology

[0002] A pediatric tablet grinding device is a device specifically designed for pediatric medication needs, used to grind tablets into powder. In pediatric treatment, because children's swallowing abilities are not fully developed, they cannot swallow whole tablets directly. Therefore, it is often necessary to grind the tablets into powder and mix them into food or drinks to assist children in taking medication. Common methods include using a crushing mechanism to crush the tablets with pressure; setting up a breaking mechanism to break larger tablets into smaller pieces for further grinding; and using a rotating grinding disc to grind the tablets into powder through friction. These methods aim to efficiently, conveniently, and safely transform tablets into a powder form suitable for children.

[0003] Chinese Patent Publication No. CN212040847U discloses a pediatric tablet grinding device, including a base plate, one end of a vertical rod fixedly connected to the base plate, and a conical barrel fixedly connected to the other end of the vertical rod. The conical barrel is fixedly connected to a cylindrical barrel, which has an opening and a circular hole. A semi-circular plate is hinged to the cylindrical barrel, and a bolt is threaded onto the semi-circular plate. The semi-circular plate matches the opening, and the bolt matches the circular hole. A vertical plate is fixedly connected to the cylindrical barrel, and a grinding mechanism is fixedly connected to the vertical plate.

[0004] Existing pediatric tablet grinding devices have significant defects. Due to the lack of batch feeding design in the feeding stage, tablets tend to enter the grinding zone in large quantities, resulting in insufficient grinding and affecting grinding efficiency and powder uniformity. The grinding method is limited, mostly involving simple crushing or breaking without combining initial crushing and fine grinding, making it difficult to handle hard tablets and prone to drug clumping. Furthermore, there is a lack of processing of the ground powder, which fails to separate clumped powder and assist in dispersion, resulting in poor powder looseness, which is not conducive to children's administration and the efficacy of the medicine. Summary of the Invention

[0005] The main objective of this invention is to provide a granulation device for pediatric tablets, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A pediatric tablet grinding device includes a housing, a cover plate rotatably connected to the upper end of the housing, a controller fixedly installed on one side of the upper end of the housing, a buckle fixedly installed on the cover plate and the front end of the housing, a grinder disposed in the inner cavity of the housing, a finished product drawer slidably connected to the bottom wall of the inner cavity of the housing, a clean water tank communicating with the grinder disposed on one side of the inner cavity of the housing, and a wastewater tank communicating with the bottom wall of the inner cavity of the housing disposed on one side of the inner cavity of the housing.

[0008] Preferably, the grinder includes a processing cylinder fixedly connected to the inner cavity of the outer shell, a feeding structure is provided on the upper part of the inner surface of the processing cylinder, a preliminary crushing structure is provided in the middle part of the inner surface of the processing cylinder, a secondary crushing structure is provided on the lower part of the inner surface of the processing cylinder, and a tapered tube is provided on the bottom wall of the inner surface of the processing cylinder.

[0009] Preferably, the feeding structure includes an outer ring fixedly connected to the inner wall of the processing cylinder. Two curved blocks are arranged in a ring on the inner surface of the outer ring. Each of the two curved blocks has a discharge port at its tail end. A sliding plate is slidably connected to the inner surface of each discharge port. A friction column lower than the lower end of the outer ring is provided at the lower end of the sliding plate. A central column is provided on the inner arc surface of the two curved blocks. A driving structure is fixedly installed on the inner surface of the central column.

[0010] Preferably, the preliminary crushing structure includes a sliding groove in the middle of the inner surface of the processing cylinder, a grinding plate slidably connected to the inner surface of the sliding groove, a plurality of communicating grooves that communicate with the lower part of the inner surface of the processing cylinder are distributed in a ring at the lower part of the inner surface of the sliding groove, a crushing component is provided at the upper end of the grinding plate, the crushing component and the grinding plate are both connected to the driving structure, and a driving groove is provided at the upper part of the inner surface of the processing cylinder.

[0011] Preferably, the drive structure includes a drive motor mounted on the inner surface of the central column, a bevel gear set fixedly mounted on the output end of the drive motor, the forward output gear of the bevel gear set being connected to the crushing component, a drive shaft being fixedly connected to the inner surface of the reverse output gear of the bevel gear set, and the outer surface of the drive shaft being connected to the grinding plate and the secondary crushing structure.

[0012] Preferably, the crushing assembly includes a sliding ring that is connected to the forward output gear of the bevel gear set. The lower end of the sliding ring is fixedly connected to a limit ring by a spring. The limit ring is rotatably connected to the upper end of the grinding plate. Two blades are fixedly connected to the outer surface of the crushing assembly in an annular distribution. They are slidably connected to the inner surface of the drive groove by pulleys. A U-shaped groove is opened on the lower part of the inner surface of the two blades on the side with the same direction of rotation. A pressure plate is slidably connected to the inner surface of the two U-grooves by a spring rod. The sliding ring is slidably connected to the outer surface of the drive shaft.

[0013] Preferably, the upper end of the grinding plate is provided with a plurality of protrusions arranged in an array and fixedly connected, and the outer surface of the grinding plate is provided with a plurality of brush plates arranged in a ring and fixedly connected, and the bottom end of each of the brush plates is provided with a silicone strip.

[0014] Preferably, the secondary crushing structure includes a conical plate rotatably connected to the inner wall of the processing cylinder. A drive ring is provided at the middle of the upper end of the conical plate. A screen that is rotatably connected to the drive shaft is rotatably connected to the inner surface of the conical plate. A plurality of vibration grooves are distributed in an annular pattern on the inner side of the conical plate. Spokes are fixedly connected to the inner surface of each vibration groove. Magnetic balls are fixedly connected to the side of each spoke away from the drive ring. The magnetic balls are all suspended in the air when not subjected to external force. A plurality of communication ports communicating with the inner cavity of the conical plate are distributed in an annular pattern at the junction of the upper end of the conical plate and the drive ring.

[0015] Preferably, the secondary crushing structure further includes a drive gear rotatably connected to the top of the inner surface of the drive ring and driven by the drive shaft. The outer surface of the drive gear is symmetrically meshed with driven gears. The inner surfaces of the two driven gears are fixedly connected to grinding rollers that are rotatably connected to the drive ring and attached to the upper end of the conical plate. The outer surface of the grinding rollers is provided with magnetic strips whose magnetism is opposite to that of the magnetic ball. The outer surface of the drive ring is circumferentially distributed and fixedly connected with several scrapers that are attached to the upper end of the conical plate. The scrapers are provided with slots on the side opposite to the direction of rotation.

[0016] Preferably, the inner surface of the finished drawer is symmetrically provided with rubber plates, and the ends of the two rubber plates that are close to each other are fixedly connected with a rubber connecting strip.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This invention guides the tablets into the primary crushing structure through the feeding structure, and crushes them through the action of the primary crushing structure. With the cooperation of the primary crushing structure, the material is sent to the secondary crushing structure for further grinding and crushing. At the same time, the secondary crushing structure separates the drug powder that has clumped due to grinding, making it into loose drug powder, which is convenient for feeding to children.

[0019] 2. This invention utilizes the combination of the outer ring, curved block, and sliding plate in the feeding structure to feed tablets into the processing cylinder in batches. The drive motor and bevel gear set in the drive structure drive the crushing component and grinding plate to rotate, completing the initial crushing and sorting. The sliding ring, limiting ring, blade plate, and pressure plate in the crushing component, together with the protrusions on the grinding plate, realize the grinding operation of the tablets, achieving orderly feeding, crushing, and sorting of tablets, and improving grinding efficiency and quality.

[0020] 3. This invention achieves further pulverization and screening of drug particles through the cooperation of the conical plate, drive ring, and screen in the secondary pulverization structure. The drive gear and driven gear drive the grinding roller to rotate, and the damping strip forms a differential speed to enhance the grinding effect. The scraper scrapes off the drug particles and makes them flow into the connecting port. Furthermore, through the magnetic effect of the grinding roller and the magnetic ball, the magnetic ball hits the oscillating groove to generate oscillation, which assists the screen in dispersing the drug agglomerates. By utilizing the synergy of various structures, the pulverization effect and dispersion efficiency of the drug powder are improved. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the cover plate in the open state of the present invention;

[0023] Figure 3 This is a cross-sectional structural diagram of the outer casing of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the grinding mill of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the finished drawer of the present invention;

[0026] Figure 6 This is a schematic diagram of the feeding structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the preliminary crushing structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the crushing component of the present invention;

[0029] Figure 9 This is a schematic diagram of the secondary crushing structure of the present invention;

[0030] Figure 10 This is a schematic cross-sectional view of the conical plate of the present invention;

[0031] Figure 11 For the present invention Figure 10 A magnified schematic diagram of the local structure at point A in the middle.

[0032] In the diagram: 1. Outer shell; 11. Clean water tank; 12. Wastewater tank; 2. Controller; 3. Finished product drawer; 31. Rubber plate; 32. Rubber connecting strip; 4. Buckle; 5. Cover plate; 6. Grinding mill; 61. Processing cylinder; 62. Conical tube; 63. Feeding structure; 631. Outer ring; 632. Central column; 633. Curved block; 634. Discharge port; 635. Sliding plate; 64. Preliminary crushing structure; 641. Crushing component; 6411. Blade; 6412. U-shaped groove; 6413. Pressure plate; 6414. Sliding ring; 6415. Limiting ring 642. Connecting groove; 643. Driving groove; 644. Grinding plate; 6441. Protrusion; 6442. Brush plate; 645. Sliding groove; 65. Secondary crushing structure; 651. Conical plate; 6511. Connecting port; 652. Driving ring; 6521. Driving gear; 6522. Driven gear; 653. Grinding roller; 654. Scraper; 6541. Groove; 655. Spoke; 656. Magnetic ball; 657. Vibrating groove; 658. Screen; 66. Driving structure; 661. Driving motor; 662. Bevel gear set; 663. Driving shaft. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0034] Example 1, as Figure 1 , Figure 2 and Figure 3 As shown, a pediatric tablet grinding device includes a housing 1, a cover plate 5 rotatably connected to the upper end of the housing 1, a controller 2 fixedly installed on one side of the upper end of the housing 1, a buckle 4 fixedly installed on the cover plate 5 and the front end of the housing 1, a grinder 6 provided in the inner cavity of the housing 1, a finished product drawer 3 slidably connected to the bottom wall of the inner cavity of the housing 1, a clean water tank 11 communicating with the grinder 6 provided on one side of the inner cavity of the housing 1, and a wastewater tank 12 communicating with the bottom wall of the inner cavity of the housing 1 provided on one side of the inner cavity of the housing 1.

[0035] Both the clean water tank 11 and the wastewater tank 12 have built-in micro water pumps. The clean water tank 11 sends clean water into the 6 tank, while the wastewater tank 12 collects the wastewater after cleaning from the bottom, which is convenient for subsequent use and reduces cross-contamination. This structure is a conventional technical means in the prior art and will not be further shown or described in this invention.

[0036] Furthermore, to achieve the crushing and grinding of tablets, please refer to... Figure 4 The grinder 6 includes a processing cylinder 61 fixedly connected to the inner cavity of the outer shell 1. A feeding structure 63 is provided on the upper part of the inner surface of the processing cylinder 61, a preliminary crushing structure 64 is provided in the middle part of the inner surface of the processing cylinder 61, a secondary crushing structure 65 is provided on the lower part of the inner surface of the processing cylinder 61, and a tapered tube 62 is provided on the bottom wall of the inner surface of the processing cylinder 61.

[0037] During the operation of this embodiment, the tablets are guided into the preliminary crushing structure 64 by the feeding structure 63, and crushed by the action of the preliminary crushing structure 64. The material is then fed into the secondary crushing structure 65 for further grinding and crushing. At the same time, the secondary crushing structure 65 separates the drug powder that has clumped due to grinding, forming a loose drug powder that is convenient for feeding to child patients.

[0038] Furthermore, for easier administration of the powder to pediatric patients, please refer to [link / reference needed]. Figure 5 The inner surface of the finished drawer 3 is symmetrically provided with rubber plates 31, and the two rubber plates 31 are fixedly connected to each other at one end with a rubber connecting strip 32.

[0039] It should be noted that the controller 2 mentioned above is a conventional controller, and this structure has been widely used in the prior art. In this invention, it is only used to realize the function of controlling the motor in the mill 6. Its internal structure, operating principle, wiring and control method will not be described in detail.

[0040] Example 2: Based on Example 1, this example utilizes the cooperation of the outer ring 631, curved block 633, and sliding plate 635 in the feeding structure 63 to feed tablets into the processing cylinder 61 in batches. The drive motor 661 and bevel gear set 662 in the drive structure 66 drive the crushing component 641 and grinding plate 644 to rotate, completing preliminary crushing and sorting. The sliding ring 6414, limiting ring 6415, blade 6411, and pressure plate 6413 within the crushing component 641, in conjunction with the protrusions 6441 on the grinding plate 644, achieve the grinding operation of the tablets, realizing orderly feeding, crushing, and sorting of tablets, thus improving grinding efficiency and quality.

[0041] Specifically, to achieve batch feeding of tablets requiring grinding into processing cylinder 61, see [reference needed]. Figure 6 The feeding structure 63 includes an outer ring 631 fixedly connected to the inner wall of the processing cylinder 61. Two curved blocks 633 are arranged in a ring on the inner surface of the outer ring 631. Each of the two curved blocks 633 has a discharge port 634 at its tail end. A sliding plate 635 is slidably connected to the inner surface of the discharge port 634. A friction column lower than the lower end of the outer ring 631 is provided at the lower end of the sliding plate 635. A central column 632 is provided on the inner arc surface of the two curved blocks 633. A driving structure 66 is fixedly installed on the inner surface of the central column 632.

[0042] When the drug enters the inner side of the outer ring 631, it will slide on the surface of the curved block 633 until it enters the feed port 634. During the operation of the crushing component 641, it will pass through the sliding plate 635 and be driven by the friction column to slide in the feed port 634, thereby making the feed port 634 connected to the bottom of the outer ring 631. At this time, the tablet will fall into the preliminary crushing structure 64 below through the feed port 634, thus achieving uniform feeding following the crushing progress of the crushing component 641.

[0043] Furthermore, to achieve preliminary pulverization of the tablets, refer to... Figure 7 The preliminary crushing structure 64 includes a sliding groove 645 opened in the middle of the inner surface of the processing cylinder 61. A grinding plate 644 is slidably connected to the inner surface of the sliding groove 645. Several connecting grooves 642 that communicate with the lower part of the inner surface of the processing cylinder 61 are distributed in a ring at the lower part of the inner surface of the sliding groove 645. A crushing component 641 is provided at the upper end of the grinding plate 644. Both the crushing component 641 and the grinding plate 644 are connected to the driving structure 66. A driving groove 643 is opened in the upper part of the inner surface of the processing cylinder 61.

[0044] Furthermore, to drive the secondary pulverizing structure 65 and the primary pulverizing structure 64 to pulverize the tablets, see [reference needed]. Figure 7 The drive structure 66 includes a drive motor 661 mounted on the inner surface of the central column 632. A bevel gear set 662 is fixedly mounted on the output end of the drive motor 661. The forward output gear of the bevel gear set 662 is connected to the crushing component 641. A drive shaft 663 is fixedly connected to the inner surface of the reverse output gear of the bevel gear set 662. The outer surface of the drive shaft 663 is connected to the grinding plate 644 and the secondary crushing structure 65.

[0045] Driven by the drive motor 661, the bevel gear set 662 rotates in opposite directions, thereby causing the crushing components 641 and 664 to rotate in opposite directions. The drive of the grinding plate 644 causes the drug particles on its upper side to move into the surrounding sliding groove 645 due to the centrifugal force generated by the rotation. At the same time, due to the obstruction of the lower edge of the drive groove 643, particles that have not been ground to the predetermined size cannot enter the sliding groove 645, thereby achieving the initial grinding and sorting of the drug particles.

[0046] Furthermore, to achieve the pressing and sliding of the tablets on the grinding plate 644 to perform the tablet grinding operation, refer to... Figure 8The crushing assembly 641 includes a sliding ring 6414 that is connected to the forward output gear of the bevel gear set 662. The lower end of the sliding ring 6414 is fixedly connected to a limit ring 6415 by a spring. The limit ring 6415 is rotatably connected to the upper end of the grinding plate 644. Two blades 6411 are fixedly connected to the outer surface of the crushing assembly 641 in an annular distribution. They are slidably connected to the inner surface of the drive groove 643 by pulleys. U-shaped grooves 6412 are opened on the lower part of the inner surface of the two blades 6411 on the side with the same direction of rotation. A pressure plate 6413 is slidably connected to the inner surface of the two U-shaped grooves 6412 by a spring rod. The sliding ring 6414 is slidably connected to the outer surface of the drive shaft 663.

[0047] Furthermore, to facilitate the grinding of tablets using the crushing component 641, see [link to relevant documentation]. Figure 8 The upper end of the grinding plate 644 is fixedly connected with several protrusions 6441 arranged in an array, and the outer surface of the grinding plate 644 is fixedly connected with several brush plates 6442 arranged in a ring. Each brush plate 6442 has a silicone strip at its bottom.

[0048] The crushing component 641, which is set on the lower side of the bevel gear set 662, will rotate under the action of the connecting groove 642, thereby driving the crushing component 641 to rotate. When the crushing component 641 passes under the drive groove 643, it will drive the sliding groove 645 to retract into the drive groove 643 through the friction column, and cause the drive groove 643 to connect with the processing cylinder 61, so that the tablet falls on the grinding plate 644.

[0049] Under the action of the limiting ring 6415, the pulley on the blade 6411 is always in contact with the upper part of the inner surface of the drive groove 643. Under this premise, the running trajectory of the blade 6411 can be regarded as two sets and four segments, namely two arc-shaped trajectories and two U-shaped trajectories. These four trajectories are spliced ​​together to form a set of actions of pressing the tablet to rub and crush it, rising and receiving a new tablet.

[0050] When the sliding ring 6414 drives the blade 6411 to rotate, when the blade 6411 is in the arc-shaped trajectory of the drive groove 643, the inner pressing plate 6413 will press the tablet under the action of the spring, so that it is attached to the protrusion 6441 on the grinding plate 644 and gradually rubbed into fragments under the action of the protrusion 6441. Under the action of centrifugal force, the tablet gradually moves to the surroundings and enters the sliding groove 645. It falls into the secondary crushing structure 65 below through the connecting groove 642 opened at the bottom of the sliding groove 645.

[0051] As the blade 6411 moves in the U-shaped trajectory, it gradually moves to the uppermost position under the action of the limiting ring 6415 and contacts the friction column at the bottom of the sliding plate 635. The friction column drives the feed port 634 to be drawn into the feed port 634, thereby causing the tablet to fall above the grinding plate 644. Furthermore, the blade 6411 gradually moves downward under the action of the drive groove 643, thereby pressing the tablet under the pressure plate 6413 to achieve compression crushing.

[0052] Example 3: Based on Example 2, this example further utilizes the combination of the conical plate 651, drive ring 652, and screen 658 in the secondary crushing structure 65 to achieve further crushing and screening of drug particles. The drive gear 6521 and driven gear 6522 drive the grinding roller 653 to rotate, and the damping strip forms a differential speed to enhance the grinding effect. The scraper 654 scrapes off the drug particles, causing them to flow into the connecting port 651. Furthermore, through the magnetic action of the grinding roller 653 and the magnetic ball 656, the magnetic ball 656 impacts the oscillating groove 657 to generate oscillation, which assists the screen 658 in dispersing drug clumps. By utilizing the synergy of various structures, the crushing effect and dispersion efficiency of the drug powder are improved.

[0053] Specifically, to further crush the drug powder and pulverize it, refer to... Figure 9 and Figure 10 The secondary crushing structure 65 includes a conical plate 651 fixedly connected to the inner wall of the processing cylinder 61. A drive ring 652 is provided at the middle of the upper end of the conical plate 651. A screen 658, which is connected to the drive shaft 663, is rotatably connected to the inner surface of the conical plate 651. Several vibration grooves 657 are distributed in an annular pattern on the inner side of the conical plate 651. Spokes 655 are fixedly connected to the inner surface of each vibration groove 657. Magnetic balls 656 are fixedly connected to the side of each spoke 655 away from the drive ring 652. The magnetic balls 656 are all suspended in the air when not subjected to external force. Several communication ports 6511, which communicate with the inner cavity of the conical plate 651, are distributed in an annular pattern at the junction of the upper end of the conical plate 651 and the drive ring 652.

[0054] Furthermore, to achieve further grinding and pulverization of the drug particles, see [reference needed]. Figure 9 and Figure 10The secondary crushing structure 65 also includes a drive gear 6521 that is rotatably connected to the top of the inner surface of the drive ring 652 and is driven by the drive shaft 663. The outer surface of the drive gear 6521 is symmetrically meshed with driven gears 6522. The inner surfaces of the two driven gears 6522 are fixedly connected to grinding rollers 653 that are rotatably connected to the drive ring 652 and attached to the upper end of the conical plate 651. The outer surface of the grinding roller 653 is provided with magnetic strips whose magnetism is opposite to that of the magnetic ball 656. The outer surface of the drive ring 652 is annularly distributed and fixedly connected with several scrapers 654 that are attached to the upper end of the conical plate 651. The scrapers 654 are provided with slots 6541 on the side opposite to the direction of rotation.

[0055] Drug particles fall onto the conical plate 651 through the connecting groove 642. At this time, the drive gear 6521 rotates under the action of the drive shaft 663. The grinding roller 653 inside the drive ring 652 also rotates with the drive ring 652. A damping strip is provided at the connection between the grinding roller 653 and the conical plate 651 to block the rotation of the drive ring 652. However, it cannot completely limit the rotation of the drive ring 652, so that the drive ring 652 and the drive gear 6521 form a differential speed. During the process of the drive ring 652 driving the grinding roller 653 to rotate, the differential speed drives the grinding roller 653 to rotate on its own, further enhancing the grinding effect of the grinding roller 653 on the drug particles.

[0056] At the same time, the scraper 654 installed around the drive ring 652 scrapes off the drug particles and powder on the surface of the conical plate 651, causing them to slide down the slope of the conical plate 651 and eventually flow into the connecting port 6511. They then enter the inner side of the screen 658 through the connecting port 6511, where they are spread out and further dispersed by the rotation of the screen 658.

[0057] During the rotation of the grinding roller 653, it passes over each magnetic ball 656 and is attracted to move upward by the magnetic force. When the grinding roller 653 leaves the range of the magnetic balls 656, the magnetic balls 656 rebound and hit the inner surface of the oscillation groove 657 under the action of the spokes 655, thereby generating oscillation, which causes the powder particles on the screen 658 and the conical plate 651 to move downward, assisting the screen 658 in dispersing the drug clusters.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A device for grinding pediatric tablets, comprising a housing (1), characterized in that: The upper end of the outer shell (1) is rotatably connected to a cover plate (5), and a controller (2) is fixedly installed on one side of the upper end of the outer shell (1). The cover plate (5) and the front end of the outer shell (1) are fixedly installed with a buckle (4). A grinder (6) is provided in the inner cavity of the outer shell (1). A finished product drawer (3) is slidably connected to the bottom wall of the inner cavity of the outer shell (1). A clean water tank (11) communicating with the grinder (6) is provided on one side of the inner cavity of the outer shell (1). A sewage tank (12) communicating with the bottom wall of the inner cavity of the outer shell (1) is provided on one side of the inner cavity of the outer shell (1). The mill (6) includes a processing cylinder (61) fixedly connected to the inner cavity of the outer shell (1). A feeding structure (63) is provided on the upper part of the inner surface of the processing cylinder (61), a preliminary crushing structure (64) is provided in the middle part of the inner surface of the processing cylinder (61), a secondary crushing structure (65) is provided on the lower part of the inner surface of the processing cylinder (61), and a tapered tube (62) is provided on the bottom wall of the inner surface of the processing cylinder (61). The feeding structure (63) includes an outer ring (631) fixedly connected to the inner wall of the processing cylinder (61). Two curved blocks (633) are arranged in a ring on the inner surface of the outer ring (631). The tail ends of the two curved blocks (633) are provided with a discharge port (634). The inner surface of the discharge port (634) is slidably connected with a sliding plate (635). The lower end of the sliding plate (635) is provided with a friction column lower than the lower end of the outer ring (631). The inner arc surfaces of the two curved blocks (633) are jointly provided with a central column (632). The inner surface of the central column (632) is fixedly installed with a driving structure (66). The preliminary crushing structure (64) includes a sliding groove (645) opened in the middle of the inner surface of the processing cylinder (61). A grinding plate (644) is slidably connected to the inner surface of the sliding groove (645). Several connecting grooves (642) that communicate with the lower part of the inner surface of the processing cylinder (61) are distributed in a ring at the lower part of the inner surface of the sliding groove (645). A crushing component (641) is provided at the upper end of the grinding plate (644). Both the crushing component (641) and the grinding plate (644) are connected to the driving structure (66) for transmission. A driving groove (643) is opened at the upper part of the inner surface of the processing cylinder (61). The drive structure (66) includes a drive motor (661) mounted on the inner surface of the central column (632). A bevel gear set (662) is fixedly mounted on the output end of the drive motor (661). The forward output gear of the bevel gear set (662) is connected to the crushing component (641) in a transmission connection. A drive shaft (663) is fixedly connected to the inner surface of the reverse output gear of the bevel gear set (662). The outer surface of the drive shaft (663) is connected to the grinding plate (644) and the secondary crushing structure (65) in a transmission connection. The secondary crushing structure (65) includes a conical plate (651) rotatably connected to the inner wall of the processing cylinder (61). A drive ring (652) is provided at the middle of the upper end of the conical plate (651). A screen (658) rotatably connected to the inner surface of the conical plate (651) and driven by the drive shaft (663) is connected to the screen (658). Several vibration grooves (657) are arranged in a ring on the inner side of the conical plate (651). Spokes (655) are fixedly connected to the inner surface of each vibration groove (657). Magnetic balls (656) are fixedly connected to the side of each spoke (655) away from the drive ring (652). The magnetic balls (656) are suspended in the air when not subjected to external force. Several communication ports (6511) communicating with the inner cavity of the conical plate (651) are arranged in a ring at the junction of the upper end of the conical plate (651) and the drive ring (652). The secondary crushing structure (65) further includes a drive gear (6521) rotatably connected to the top of the inner surface of the drive ring (652) and driven by the drive shaft (663). The outer surface of the drive gear (6521) is symmetrically meshed with driven gears (6522). The inner surfaces of the two driven gears (6522) are fixedly connected with grinding rollers (653) rotatably connected to the drive ring (652) and attached to the upper end of the conical plate (651). The outer surface of the grinding roller (653) is provided with magnetic strips whose magnetism is opposite to that of the magnetic ball (656). The outer surface of the drive ring (652) is fixedly connected with several scrapers (654) attached to the upper end of the conical plate (651) in a ring. The scrapers (654) are provided with slots (6541) on the side opposite to the direction of rotation.

2. The pediatric tablet grinding device according to claim 1, characterized in that: The crushing assembly (641) includes a sliding ring (6414) that is connected to the forward output gear of the bevel gear set (662). The lower end of the sliding ring (6414) is fixedly connected to a limiting ring (6415) by a spring. The limiting ring (6415) is rotatably connected to the upper end of the grinding plate (644). The outer surface of the crushing assembly (641) is annularly fixedly connected to two blades (6411) that are slidably connected to the inner surface of the drive groove (643) by pulleys. The lower part of the inner surface of the two blades (6411) is provided with a U-shaped groove (6412) on the side with the same direction of rotation. The inner surface of the two U-shaped grooves (6412) is slidably connected to a pressure plate (6413) by a spring rod. The sliding ring (6414) is slidably connected to the outer surface of the drive shaft (663).

3. The pediatric tablet grinding device according to claim 1, characterized in that: The grinding plate (644) has several protrusions (6441) fixedly connected in an array at its upper end, and several brush plates (6442) are fixedly connected in a ring on the outer surface of the grinding plate (644). Each of the brush plates (6442) has a silicone strip at its bottom end.

4. The pediatric tablet grinding device according to claim 1, characterized in that: The inner surface of the finished drawer (3) is symmetrically provided with rubber plates (31), and the two rubber plates (31) are fixedly connected to each other at one end with a rubber connecting strip (32).

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