Medicine grinding device for pharmacy
By using a linkage mechanism that drives the motor to rotate the grinding roller in the opposite direction and the screen to slide, the problem of incomplete drug grinding is solved, realizing automated drug grinding and screening, and improving efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AFFILIATED CHILDRENS HOSPITAL OF CAPITAL INST OF PEDIATRICS
- Filing Date
- 2025-03-29
- Publication Date
- 2026-04-17
AI Technical Summary
Existing drug grinding devices cannot completely pulverize drugs, leaving fragments that may get stuck in the throats of the elderly and children, posing a safety hazard.
The system uses a drive motor to rotate the first and second grinding rollers in opposite directions, and a linkage component to make the screen slide back and forth, thus realizing the integrated operation of automatic grinding and screening of medicines and ensuring that the medicine particles are of uniform size.
It has enabled automated grinding and screening of medicines, improving work efficiency and screening accuracy, avoiding tedious manual operations and errors, and ensuring the safe use of medicines.
Smart Images

Figure CN224127369U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pharmaceutical grinding technology, and in particular to a pharmaceutical grinding device. Background Technology
[0002] Medicines refer to substances used to prevent, treat, and diagnose diseases, purposefully regulate human physiological functions, and have specified indications or therapeutic functions, usage, and dosage. These include Chinese medicinal herbs, prepared slices of Chinese medicinal herbs, proprietary Chinese medicines, and chemical agents. During preparation, the raw materials need to be ground into powder before packaging and consumption. Some granular medicines, due to their large size, are inconvenient for the elderly and children to consume; therefore, they need to be thoroughly ground before consumption.
[0003] Existing drug grinding devices cannot grind drugs thoroughly, resulting in fragments. These fragments can be choked by the elderly and children, posing a danger. Therefore, a new pharmaceutical drug grinding device is proposed. Utility Model Content
[0004] In view of this, the present invention provides a pharmaceutical grinding device to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial alternative.
[0005] The technical solution of this utility model is implemented as follows: It includes a processing box, with a feeding port at the top. A side plate is fixedly connected to one side of the processing box. A grinding and pulverizing assembly is provided on the processing box. The grinding and pulverizing assembly includes a drive motor fixedly connected to the side plate. A drive shaft is fixedly connected to the output end of the drive motor. A first pulverizing roller is fixedly connected to the drive shaft. A drive gear is fixedly connected to the drive shaft. The drive gear meshes with a driven gear. A second pulverizing roller is fixedly connected to the driven gear. The grinding and pulverizing assembly also includes a linkage assembly. The linkage assembly includes a first pulley fixedly connected to the drive shaft. A transmission belt is provided on the first pulley. A second pulley is provided at the end of the transmission belt away from the first pulley. A connecting shaft is fixedly connected to the second pulley. A drive bevel gear is fixedly connected to one end of the connecting shaft. The drive bevel gear meshes with a driven bevel gear. A rotating shaft is fixedly connected through the driven bevel gear. A cam is fixedly connected to the bottom of the rotating shaft.
[0006] More preferably, the processing box is provided with a screening component, the screening component includes a screen arranged in the processing box, a limiting rod is fixedly connected in the processing box, a spring is sleeved on the limiting rod, a guide plate is fixedly connected in the processing box, a discharge plate is fixedly connected in the processing box, and a discharge port is provided in the middle of the discharge plate.
[0007] More preferably, the bottom of the processing box is provided with a support leg, the bottom of the support leg is provided with a base, the base is provided with a groove, a receiving hopper slides in the groove, and a cleaning port is provided on one side of the processing box.
[0008] More preferably, the first crushing roller and the second crushing roller are rotatably connected inside the processing box, the connecting shaft is rotatably connected to the processing box, the transmission belt passes through the side plate, and the rotating shaft is rotatably connected to the bottom of the guide plate.
[0009] More preferably, the guide plate is located above the screen, the discharge plate is located below the screen, the screen is attached to the cam, the limiting rod is provided in four sets, the screen is slidably connected to the limiting rod, one end of the spring is fixedly connected to the processing box, and the other end of the spring is fixedly connected to the screen.
[0010] More preferably, one side of the groove extends through the base, the groove is located directly below the discharge port, and the length and width of the receiving hopper are greater than the length and width of the discharge port.
[0011] The present invention has the following advantages due to the adoption of the above technical solution:
[0012] I. This utility model uses a grinding and pulverizing component and a screening component. The drive motor drives the first and second grinding rollers to rotate in opposite directions. Through the linkage component, the screen slides back and forth under the action of the spring, realizing the integrated operation of automatic grinding and screening of medicines. This ensures uniform screening of medicine particles, avoids the tediousness and errors of manual screening, and greatly improves work efficiency and screening accuracy.
[0013] Second, this utility model achieves full utilization of power by driving the grinding and crushing components and the screening components through the linkage component. The setting of the discharge port facilitates the collection of the ground medicine. The guide plate and discharge plate make it easy to discharge the ground medicine. The receiving hopper can slide to the deepest part of the groove to ensure that the medicine falls accurately, which is convenient for subsequent processing and utilization.
[0014] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a side sectional view of the present invention;
[0018] Figure 3 This is a top sectional view of the present invention;
[0019] Figure 4 This utility model Figure 1 Enlarged view of point A in the image;
[0020] Figure 5 This utility model Figure 2 Enlarged view of point B in the image.
[0021] Reference numerals: 1. Processing box; 101. Feeding port; 102. Side plate; 2. Drive motor; 201. Drive shaft; 202. First crushing roller; 203. Drive gear; 204. Driven gear; 205. Second crushing roller; 301. First pulley; 302. Transmission belt; 303. Second pulley; 304. Connecting shaft; 305. Driven bevel gear; 306. Driven bevel gear; 307. Rotating shaft; 308. Cam; 4. Screen; 401. Limiting rod; 402. Spring; 403. Guide plate; 404. Discharge plate; 405. Discharge port; 6. Support leg; 7. Base; 701. Groove; 702. Collection hopper; 8. Cleaning port. Detailed Implementation
[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0023] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0024] Example:
[0025] like Figure 1-5As shown, this embodiment of the present invention provides a pharmaceutical grinding device, including a processing box 1. The top of the processing box 1 has a feeding port 101. A side plate 102 is fixedly connected to one side of the processing box 1. A grinding and pulverizing assembly is provided on the processing box 1. The grinding and pulverizing assembly includes a drive motor 2 fixedly connected to the side plate 102. The output end of the drive motor 2 is fixedly connected to a drive shaft 201. A first pulverizing roller 202 is fixedly connected to the drive shaft 201. A drive gear 203 is fixedly connected to the drive shaft 201. The drive gear 203 meshes with a driven gear 204. A second pulverizing roller 205 is fixedly connected to the driven gear 204. The grinding and pulverizing assembly also includes a linkage assembly, which includes components fixedly connected to the drive motor 201. A first pulley 301 is mounted on shaft 201. A transmission belt 302 is mounted on the first pulley 301. A second pulley 303 is mounted on the end of the transmission belt 302 away from the first pulley 301. A connecting shaft 304 is fixedly connected to the second pulley 303. A driving bevel gear 305 is fixedly connected to one end of the connecting shaft 304. A driven bevel gear 306 is meshed with the driving bevel gear 305. A rotating shaft 307 is fixedly connected through the driven bevel gear 306. A cam 308 is fixedly connected to the bottom of the rotating shaft 307. The driving gear 203 and the driven gear 204 are located outside the processing box 1. The connecting shaft 304 is located above the screen 4. The driving bevel gear 305 and the driven bevel gear 306 are located inside the processing box 1.
[0026] In a preferred embodiment, the processing box 1 is equipped with a screening assembly, which includes a screen 4 arranged inside the processing box 1. A limiting rod 401 is fixedly connected inside the processing box 1, and a spring 402 is sleeved on the limiting rod 401. A guide plate 403 is fixedly connected inside the processing box 1, and a discharge plate 404 is fixedly connected inside the processing box 1. The discharge plate 404 has a discharge port 405 in the middle. The middle of the guide plate 403 is lower than the surrounding area, and the middle of the discharge plate 404 is lower than the sides. The bottom of the processing box 1 is provided with a support leg 6, and the bottom of the support leg 6 is provided with a base 7. The base 7 is provided with a groove 701, and a receiving hopper 702 slides in the groove 701. A cleaning port 8 is provided on one side of the processing box 1. The cleaning port 8 is located on one side of the screen 4. A sealing plate (not shown) connected by screws is provided on one side of the cleaning port 8 to prevent the medicine from spilling. When the receiving hopper 702 is attached to the deepest part of the groove 701, the receiving hopper 702 is located directly below the discharge port 405.
[0027] In a preferred embodiment, the first crushing roller 202 and the second crushing roller 205 are rotatably connected inside the processing box 1. The connecting shaft 304 is rotatably connected to the processing box 1. The transmission belt 302 passes through the side plate 102. The rotating shaft 307 is rotatably connected to the bottom of the guide plate 403. The guide plate 403 is located above the screen 4. The discharge plate 404 is located below the screen 4. The screen 4 is attached to the cam 308. There are four sets of limiting rods 401. The screen 4 is slidably connected to the limiting rods 401. One end of the spring 402 is fixedly connected inside the processing box 1. The other end of the spring 402 is fixedly connected to the screen 4. One side of the groove 701 passes through the base 7. The groove 701 is located directly below the discharge port 405. The length and width of the receiving hopper 702 are greater than the length and width of the discharge port 405. This device is small in size and can be used for household medicine crushing.
[0028] In operation, the present invention works as follows: The operator starts the drive motor 2, which drives the drive shaft 201 to rotate. The drive shaft 201, in turn, drives the first crushing roller 202 and the driving gear 203 to rotate. Simultaneously, the driven gear 204 causes the second crushing roller 205 to rotate in the opposite direction to the first crushing roller 202. The rotation of the drive shaft 201 also drives the first pulley 301 to rotate. Through the transmission belt 302, the second pulley 303 drives the connecting shaft 304 to rotate on the processing box 1. The connecting shaft 304 drives the driving bevel gear 305 to rotate, which in turn drives the rotating shaft 307 to rotate through the driven bevel gear 306. This causes the cam 308 to rotate, pushing the screen 4 to slide on the limiting rod 401. At this time, under the action of the spring 402, the screen 4 moves backward on the limiting rod 401. After sliding, the receiving hopper 702 is placed on the groove 701 and pushed to the deepest part of the groove 701 so that it is directly below the discharge port 405. The medicine to be ground is put into the feeding port 101 at the top of the processing box 1 and into the middle of the first crushing roller 202 and the second crushing roller 205. The medicine is ground by the rotation of the first crushing roller 202 and the second crushing roller 205. Then the medicine falls onto the screen 4 through the guide plate 403. At this time, the screen 4 slides back and forth on the limiting rod 401, and the medicine of the appropriate size is screened from the discharge port 405 through the discharge plate 404 into the receiving hopper 702 below. After the grinding is completed, the receiving hopper 702 is taken out, and then the sealing plate on one side of the cleaning port 8 is removed to clean the large pieces of medicine left on the screen 4.
[0029] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A pharmaceutical drug grinding device, characterized by: The system includes a processing box (1), with a feeding port (101) on the top. A side plate (102) is fixedly connected to one side of the processing box (1). A grinding and pulverizing assembly is provided on the processing box (1). The grinding and pulverizing assembly includes a drive motor (2) fixedly connected to the side plate (102). A drive shaft (201) is fixedly connected to the output end of the drive motor (2). A first pulverizing roller (202) is fixedly connected to the drive shaft (201). A drive gear (203) is fixedly connected to the drive shaft (201). A driven gear (204) is meshed with the drive gear (203). A second pulverizing roller (205) is fixedly connected to the driven gear (204). The component also includes a linkage assembly, which includes a first pulley (301) fixedly connected to the drive shaft (201), a transmission belt (302) on the first pulley (301), a second pulley (303) on the end of the transmission belt (302) away from the first pulley (301), a connecting shaft (304) fixedly connected to the second pulley (303), a driving bevel gear (305) fixedly connected to one end of the connecting shaft (304), a driven bevel gear (306) meshing with the driving bevel gear (305), a rotating shaft (307) fixedly connected through the driven bevel gear (306), and a cam (308) fixedly connected to the bottom of the rotating shaft (307).
2. A pharmaceutical pill grinding device according to claim 1, characterized in that: The processing box (1) is equipped with a screening assembly, which includes a screen (4) arranged inside the processing box (1). A limiting rod (401) is fixedly connected inside the processing box (1), and a spring (402) is sleeved on the limiting rod (401). A guide plate (403) is fixedly connected inside the processing box (1), and a discharge plate (404) is fixedly connected inside the processing box (1). A discharge port (405) is provided in the middle of the discharge plate (404).
3. A pharmaceutical pill grinding device according to claim 2, wherein: The bottom of the processing box (1) is provided with a support leg (6), the bottom of the support leg (6) is provided with a base (7), the base (7) is provided with a groove (701), a receiving hopper (702) slides in the groove (701), and a cleaning port (8) is provided on one side of the processing box (1).
4. A pharmaceutical pill grinding device according to claim 3, wherein: The first crushing roller (202) and the second crushing roller (205) are rotatably connected inside the processing box (1), the connecting shaft (304) is rotatably connected through the processing box (1), the transmission belt (302) passes through the side plate (102), and the rotating shaft (307) is rotatably connected to the bottom of the guide plate (403).
5. A pharmaceutical grinding apparatus according to claim 4, characterized in that: The guide plate (403) is located above the screen (4), the discharge plate (404) is located below the screen (4), the screen (4) is attached to the cam (308), the limiting rod (401) is provided with four sets, the screen (4) is slidably connected to the limiting rod (401), one end of the spring (402) is fixedly connected to the processing box (1), and the other end of the spring (402) is fixedly connected to the screen (4).
6. A pharmaceutical pill grinding device according to claim 5, wherein: The groove (701) extends through the base (7) on one side. The groove (701) is located directly below the discharge port (405). The length and width of the receiving hopper (702) are greater than the length and width of the discharge port (405).