Pediatric medicine grinding device with layered crushing function
The pediatric drug grinding device, with its layered crushing structure and meshing transmission design, solves the problem of uneven drug grinding, achieves uniform crushing and efficient discharge of drugs, and improves the practicality and ease of maintenance of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG MATERNAL & CHILD HEALTH HOSPITAL (SHIJIAZHUANG CHILDRENS HOSPITAL SHIJIAZHUANG SIXTH HOSPITAL)
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-01
AI Technical Summary
Existing pediatric drug grinding devices do not grind drugs evenly during use, resulting in large drug particles remaining and affecting subsequent use.
A pediatric medicine grinding device for layered crushing was designed. By setting up a combination structure of repeated crushing blocks and support baffles, limiting frame and toothed blocks, and using the meshing transmission of crushing gears, sprockets and positioning gears, the medicine is squeezed and crushed multiple times to ensure the uniformity of medicine crushing.
It improves the uniformity and efficiency of drug crushing, reduces drug particle residue, and enhances the practicality and ease of maintenance of the equipment.
Smart Images

Figure CN224180954U_ABST
Abstract
Description
A layered grinding device for pediatric medicines Technical Field
[0001] This utility model relates to the field of pediatric drug technology, specifically to a pediatric drug grinding device for layered pulverization. Background Technology
[0002] Pediatric medications are drugs specifically designed to treat childhood illnesses. Children's bodies are not fully developed, and their tolerance and reactions to drugs differ from adults. Therefore, the dosage of pediatric medications usually needs to be precisely calculated based on factors such as the child's age, weight, and body surface area. Children's liver and kidneys are still developing, resulting in weaker drug metabolism and excretion capabilities. Therefore, pediatric medications undergo rigorous safety testing during research and development and production. When treating children, because their throats are small, medications need to be ground into powder before administration. For tablets or capsules that are difficult for children to swallow, grinding them into powder can be considered. Some traditional Chinese medicine pills can also be ground, such as Baohe Pills for children, which helps treat indigestion in children; grinding them into powder makes them easier for children to take and reduces swallowing difficulties.
[0003] Existing pediatric drug grinding devices typically consist of a motor, blades, and a cup. While they offer high grinding efficiency and are convenient and labor-saving, their uneven grinding results in large drug particle residues, which are detrimental to subsequent use. Summary of the Invention
[0004] The purpose of this invention is to provide a pediatric drug grinding device for layered pulverization, in order to solve the problem mentioned in the background art that the uneven grinding of drugs during actual use results in large drug particle residues, which is not conducive to subsequent use.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a stratified pulverizing pediatric medicine grinding device, comprising a dustproof shell with an opening on its upper surface, a maintenance cover installed at the upper end of the dustproof shell, a feed pipe on the upper surface of the maintenance cover, and a feed inlet cover on the surface of the feed pipe, a discharge pipe at the lower end of the dustproof shell, two crushing gears rotatably connected to the inner wall of the cavity of the dustproof shell, a mounting baffle fixedly connected to the rear surface of the dustproof shell, a drive motor fixedly connected to the outer surface of the mounting baffle, a first sprocket rotatably connected to the inner surface of the mounting baffle, a positioning gear rotatably connected to the rear surface of the dustproof shell, a second sprocket fixedly connected to one end of the shaft of the positioning gear, and a reciprocating grinding mechanism on the rear surface of the dustproof shell, which drives the first tooth block and the limiting frame to move through the positioning gear, and the limiting frame drives the linkage gear and the transmission cylinder to rotate through the second tooth block, thereby re-grinding the crushed blocks against the supporting baffle.
[0006] Preferably, the maintenance cover and the dustproof shell are threaded together, the crushing gear is meshed with each other through tooth blocks, and the shaft of the crushing gear on one side passes through the rear surface of the dustproof shell.
[0007] The above technical solution is adopted, and the maintenance cover and the dustproof shell are connected by a threaded connection to facilitate the disassembly and assembly of the maintenance cover to clean the inside of the dustproof shell. The movement is achieved by the rotation of two crushing gears that mesh with each other.
[0008] Preferably, the output end of the drive motor passes through the surface of the mounting baffle, and the output end of the drive motor is fixedly connected to one end of the first sprocket shaft, while the other end of the first sprocket shaft is fixedly connected to the shaft of a crushing gear on one side.
[0009] Using the above technical solution, the first sprocket is driven to rotate by the drive motor, which in turn drives the crushing gear on one side to rotate.
[0010] Preferably, the positioning gear has a missing tooth design, and a transmission chain is installed between the outer surface of the second sprocket and the outer surface of the first sprocket.
[0011] By adopting the above technical solution, the rotation of the first sprocket causes the second sprocket and the positioning gear to rotate through the transmission chain.
[0012] Preferably, the reciprocating rolling mechanism includes a limiting frame that is slidably connected to the rear surface of the dustproof shell. Two sets of first toothed blocks are fixedly connected to the inner wall of the limiting frame, and a second toothed block is fixedly connected to the lower surface of the limiting frame. A transmission cylinder is rotatably connected to the inner wall of the dustproof shell cavity, with one end of the transmission cylinder penetrating the rear surface of the dustproof shell and a linkage gear fixedly connected to one end of the transmission cylinder. A re-rolling crushed block is fixedly connected to the lower end of the transmission cylinder, and a support baffle is fixedly connected to the inner wall of the dustproof shell cavity.
[0013] Using the above technical solution, the rotation of the positioning gear causes the first tooth block and the limiting frame to slide.
[0014] Preferably, a spring is connected between the limiting frame and the dustproof shell, and the two sets of first tooth blocks are staggered vertically and horizontally, with the first tooth blocks and the positioning gear forming a meshing connection.
[0015] Using the above technical solution, the sliding of the limiting frame will drive the linkage gear to rotate through the second tooth block, and the linkage gear will drive the transmission cylinder to rotate.
[0016] Preferably, the second tooth block and the linkage gear form a meshing connection, the lower end of the re-crushing crushing block is provided with a strip-shaped extrusion block, the support baffle is arc-shaped, and the center of the arc of the support baffle is concentric with the center of the transmission cylinder, the surface of the support baffle is provided with auxiliary crushing teeth, and the surface of the support baffle is provided with filter holes.
[0017] By adopting the above technical solution, the rotation of the transmission cylinder drives the movement of the crushed and re-crushed blocks, which facilitates the further crushing of the medicine by the cooperation of the crushed and re-crushed blocks and the support baffle.
[0018] Compared with the prior art, the beneficial effects of this utility model are: the stratified pulverizing pediatric medicine grinding device:
[0019] 1. The device is equipped with a secondary crushing block and a support baffle. When the device is working, two crushing gears first rotate in opposite directions to crush the medicine. Then, the medicine falls onto the surface of the support baffle. The rotation of the transmission cylinder drives the secondary crushing block to swing in a circular motion. The secondary crushing block and the auxiliary crushing teeth on the surface of the support baffle further crush the medicine, thereby improving the uniformity of the crushing and increasing the efficiency of the crushing. Finally, the medicine falls through the filter hole of the support baffle for use.
[0020] 2. A limiting frame and a first toothed block are provided so that when the device is working, the first sprocket drives the second sprocket and the positioning gear to rotate through the transmission chain. The positioning gear, with its missing tooth design, cyclically meshes with two sets of first toothed blocks, causing the first toothed blocks to drive the limiting frame to slide horizontally back and forth. Subsequently, the limiting frame drives the linkage gear to oscillate in a circular motion through the second toothed block. The linkage gear drives the transmission cylinder and the crushed block to oscillate, achieving the purpose of reciprocating crushing and improving the practicality of the device.
[0021] 3. Equipped with a dustproof outer shell and a maintenance cover, the maintenance cover can be quickly and easily connected and fixed to the dustproof outer shell through its threads when the device is in operation. When not in operation, the feed port cover prevents external impurities from entering. When the device needs to be cleaned and maintained, the maintenance cover can be easily disassembled by rotating it, thus improving the efficiency of cleaning and maintaining the dustproof outer shell. Attached Figure Description
[0022] Figure 1 is a three-dimensional structural diagram of the connection between the dustproof outer shell and the maintenance cover of this utility model;
[0023] Figure 2 is a three-dimensional structural diagram of the connection between the dustproof shell and the discharge pipe of this utility model;
[0024] Figure 3 is a three-dimensional structural diagram of the connection between the drive motor and the mounting baffle of this utility model;
[0025] Figure 4 is a three-dimensional structural diagram of the connection between the transmission cylinder and the crushed block of this utility model.
[0026] Figure 5 is a three-dimensional structural diagram of the connection between the crushing gear and the first sprocket of this utility model;
[0027] Figure 6 is a three-dimensional structural diagram of the connection between the limiting frame and the first tooth block of this utility model.
[0028] In the diagram: 1. Dustproof outer shell; 2. Maintenance cover; 3. Feed inlet cover; 4. Discharge pipe; 5. Crushing gear; 6. Drive motor; 7. First sprocket; 8. Positioning gear; 9. Second sprocket; 10. Limiting frame; 11. First toothed block; 12. Second toothed block; 13. Linkage gear; 14. Transmission cylinder; 15. Re-crushed crushed block; 16. Support baffle; 17. Mounting baffle. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Please refer to Figures 1-6. This utility model provides a technical solution: a pediatric medicine grinding device for layered pulverization, including a dustproof shell 1, a maintenance cover 2, a feed inlet cover 3, a discharge pipe 4, a crushing gear 5, a drive motor 6, a first sprocket 7, a positioning gear 8, a second sprocket 9, a limiting frame 10, a first toothed block 11, a second toothed block 12, a linkage gear 13, a transmission cylinder 14, a re-crushing crushed block 15, a support baffle 16, and a mounting baffle 17. The dustproof shell 1 has an opening on its upper surface. The maintenance cover 2 is installed at the upper end of the dustproof shell 1. The upper surface of the maintenance cover 2 is provided with a feed pipe, and the surface of the feed pipe of the maintenance cover 2... The device is equipped with a feed inlet cover 3 and a discharge pipe 4 at the lower end of the dustproof shell 1. The maintenance cover 2 and the dustproof shell 1 are connected by threads. The crushing gears 5 are connected by meshing teeth. The shaft of one crushing gear 5 passes through the rear surface of the dustproof shell 1. When using this device, the feed inlet cover 3 is opened first to allow the medicine to fall from the maintenance cover 2 into the dustproof shell 1. The drive motor 6 drives the first sprocket 7 to rotate, which in turn drives the crushing gear 5 on one side to rotate. The two crushing gears 5 are connected by meshing teeth, which causes the two crushing gears 5 to rotate in opposite directions, thereby crushing the medicine. After being crushed, the medicine falls onto the surface of the support baffle 16.
[0031] Two crushing gears 5 are rotatably connected to the inner wall of the cavity of the dustproof housing 1. A mounting baffle 17 is fixedly connected to the rear surface of the dustproof housing 1. A drive motor 6 is fixedly connected to the outer surface of the mounting baffle 17. A first sprocket 7 is rotatably connected to the inner surface of the mounting baffle 17. The output end of the drive motor 6 passes through the surface of the mounting baffle 17. The output end of the drive motor 6 is fixedly connected to one end of the shaft of the first sprocket 7. The other end of the shaft of the first sprocket 7 is fixedly connected to the shaft of one side of the crushing gear 5. The positioning gear 8 has a missing tooth design. A transmission chain is installed between the outer surface of the second sprocket 9 and the outer surface of the first sprocket 7. The rotation of the first sprocket 7 will drive the second sprocket 9 to rotate through the transmission chain. The second sprocket 9 will drive the positioning gear 8 to rotate. The missing tooth of the positioning gear 8 will cyclically mesh with two sets of first tooth blocks 11, so that the first tooth blocks 11 drive the limiting frame 10 to slide horizontally back and forth. Then the limiting frame 10 will drive the linkage gear 13 to rotate back and forth through the second tooth block 12 on the lower surface.
[0032] A positioning gear 8 is rotatably connected to the rear surface of the dustproof housing 1. A second sprocket 9 is fixedly connected to one end of the shaft of the positioning gear 8. The reciprocating rolling mechanism includes a limiting frame 10, which is slidably connected to the rear surface of the dustproof housing 1. Two sets of first tooth blocks 11 are fixedly connected to the inner wall of the limiting frame 10. A second tooth block 12 is fixedly connected to the lower surface of the limiting frame 10. A transmission cylinder 14 is rotatably connected to the inner wall of the cavity of the dustproof housing 1, and one end of the transmission cylinder 14 penetrates the rear surface of the dustproof housing 1. A linkage gear 13 is connected to the transmission cylinder 14, and a re-crushing and crushing block 15 is fixedly connected to the lower end of the transmission cylinder 14. A support baffle 16 is fixedly connected to the inner wall of the dustproof shell 1 cavity. The reciprocating rotation of the linkage gear 13 drives the transmission cylinder 14 and the re-crushing and crushing block 15 at one end of the shaft to swing around the center. At this time, the re-crushing and crushing block 15 will repeatedly crush the medicine with the auxiliary crushing teeth on the surface of the support baffle 16, which improves the crushing effect and speed of the medicine. Finally, the crushed medicine is guided from the filter hole of the support baffle 16 to the discharge pipe 4 for discharge.
[0033] A reciprocating rolling mechanism is provided on the rear surface of the dustproof shell 1. This mechanism drives the first toothed block 11 and the limiting frame 10 to move via a positioning gear 8. The limiting frame 10 then drives the linkage gear 13 and the transmission cylinder 14 to rotate via a second toothed block 12. The crushed blocks 15 are then subjected to re-rolling through the supporting baffle 16. A spring connects the limiting frame 10 to the dustproof shell 1. The two sets of first toothed blocks 11 are staggered vertically and horizontally. The first toothed blocks 11 are meshed with the positioning gear 8, and the second toothed blocks 12 are meshed with the linkage gear 13. The lower end of the re-rolled crushed blocks 15 is provided with… The device is equipped with strip-shaped extrusion blocks, and the support baffle 16 has an arc-shaped design. The center of the arc of the support baffle 16 is concentric with the center of the transmission cylinder 14. The surface of the support baffle 16 is provided with auxiliary crushing teeth and filter holes. When not in operation, the feed port cover 3 prevents impurities from entering. When the device needs to be cleaned and maintained, the maintenance cover 2 is rotated to separate the threads of the maintenance cover 2 from the dustproof shell 1, which facilitates the cleaning and maintenance of the dustproof shell 1, improves the convenience of maintenance of the device, and increases the service life of the device.
[0034] Working principle: When using this pediatric medicine grinding device with layered crushing, first open the feed inlet cover 3 and let the medicine fall from the maintenance cover 2 into the dustproof shell 1. Then, the dustproof shell 1 drives the two crushing gears 5 to rotate and crush the medicine through the first sprocket 7. At the same time, the first sprocket 7 drives the second sprocket 9 and the positioning gear 8 to rotate through the transmission chain. The missing tooth of the positioning gear 8 drives the first tooth block 11 and the limiting frame 10 to slide. The limiting frame 10 drives the linkage gear 13 to rotate through the second tooth block 12. This causes the linkage gear 13 to drive the transmission cylinder 14 and the re-crushing crushing block 15 to swing, so that the re-crushing crushing block 15 and the support baffle 16 crush and grind the medicine, increasing the overall practicality.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pediatric medicine grinding device for layered pulverization, comprising a dustproof shell (1) with an opening on its upper surface, a maintenance cover (2) installed on the upper end of the dustproof shell (1), a feed pipe provided on the upper surface of the maintenance cover (2), and a feed inlet cover (3) provided on the surface of the feed pipe of the maintenance cover (2), and a discharge pipe (4) provided at the lower end of the dustproof shell (1), characterized in that: Two crushing gears (5) are rotatably connected to the inner wall of the cavity of the dustproof shell (1). A mounting baffle (17) is fixedly connected to the rear surface of the dustproof shell (1). A drive motor (6) is fixedly connected to the outer surface of the mounting baffle (17). A first sprocket (7) is rotatably connected to the inner surface of the mounting baffle (17). A positioning gear (8) is rotatably connected to the rear surface of the dustproof shell (1). A second sprocket (9) is fixedly connected to one end of the shaft of the positioning gear (8). A reciprocating rolling mechanism is provided on the rear surface of the dustproof shell (1). The positioning gear (8) drives the first tooth block (11) and the limiting frame (10) to move. The limiting frame (10) drives the linkage gear (13) and the transmission cylinder (14) to rotate through the second tooth block (12). The crushed block (15) is re-rolled and rolled by the supporting baffle (16).
2. The pediatric medicine grinding device for layered pulverization according to claim 1, characterized in that: The maintenance cover (2) and the dustproof shell (1) are connected by a thread. The crushing gear (5) is connected by meshing teeth. The shaft of the crushing gear (5) on one side passes through the rear surface of the dustproof shell (1).
3. The pediatric medicine grinding device for layered pulverization according to claim 1, characterized in that: The output end of the drive motor (6) passes through the surface of the mounting baffle (17). The output end of the drive motor (6) is fixedly connected to one end of the shaft of the first sprocket (7). The other end of the shaft of the first sprocket (7) is fixedly connected to the shaft of the crushing gear (5) on one side.
4. The pediatric medicine grinding device for layered pulverization according to claim 1, characterized in that: The positioning gear (8) is designed with missing teeth, and a transmission chain is installed between the outer surface of the second sprocket (9) and the outer surface of the first sprocket (7).
5. The pediatric medicine grinding device for layered pulverization according to claim 1, characterized in that: The reciprocating rolling mechanism includes a limiting frame (10), which is slidably connected to the rear surface of the dustproof shell (1). Two sets of first tooth blocks (11) are fixedly connected to the inner wall of the limiting frame (10), and a second tooth block (12) is fixedly connected to the lower surface of the limiting frame (10). A transmission cylinder (14) is rotatably connected to the inner wall of the cavity of the dustproof shell (1), and one end of the transmission cylinder (14) penetrates the rear surface of the dustproof shell (1). A linkage gear (13) is fixedly connected to one end of the transmission cylinder (14). A re-rolling crushed block (15) is fixedly connected to the lower end of the transmission cylinder (14), and a support baffle (16) is fixedly connected to the inner wall of the cavity of the dustproof shell (1).
6. The pediatric medicine grinding device for layered pulverization according to claim 5, characterized in that: A spring is connected between the limiting frame (10) and the dustproof shell (1). The two sets of first tooth blocks (11) are staggered in the upper, lower and left and right directions. The first tooth blocks (11) and the positioning gear (8) form a meshing connection.
7. The pediatric medicine grinding device for layered pulverization according to claim 5, characterized in that: The second tooth block (12) and the linkage gear (13) are meshed together. The lower end of the re-crushing crushing block (15) is provided with a strip-shaped extrusion block. The support baffle (16) is arc-shaped, and the center of the arc of the support baffle (16) is concentric with the center of the transmission cylinder (14). The surface of the support baffle (16) is provided with auxiliary crushing teeth, and the surface of the support baffle (16) is provided with filter holes.