A dispensing device
The worm gear-driven dispensing device solves the problems of drug accumulation and uneven mixing, achieving precise drug addition and uniform mixing, thus improving the quality of drug dispensing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN UNIV
- Filing Date
- 2024-01-23
- Publication Date
- 2026-06-19
AI Technical Summary
In existing technologies, drugs are prone to piling up, uneven mixing, and inaccurate dosage control during the preparation process, resulting in substandard preparation accuracy and quality.
The dispensing device, driven by a worm gear, weighs the medicine through a hopper assembly and premixes the medicine using a guide tube and a discharge tube. Combined with the design of stirring blades and spiral cutters, it ensures uniform mixing and precise dispensing of the medicine.
It achieves uniform mixing and precise dispensing of medicines, improves the quality and accuracy of dispensing, and avoids medicine accumulation and discharge pipe blockage.
Smart Images

Figure CN224371178U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drug dispensing devices, and specifically to a drug dispensing device. Background Technology
[0002] Anesthesia is the use of drugs or other methods to temporarily remove sensation from a patient's whole body or a specific area, so that surgery can be performed smoothly. Nowadays, when producing anesthetic drugs, different drugs (liquid or powder) need to be added to a mixing tank according to their dosage. Then, the added drugs are mixed. After the drugs are mixed, they can be discharged and packaged for storage.
[0003] However, when different drugs need to be added to the mixing tank, they are usually poured directly into the inlet. This not only easily causes the drugs to pile up in one place, affecting the uniformity of mixing, but also makes it impossible to guarantee the accurate dosage, which can easily lead to deviations in the precision of the mixing and thus cause problems with the quality of the produced drugs.
[0004] Therefore, it is necessary to invent a drug dispensing device. Utility Model Content
[0005] The purpose of this invention is to solve the problems mentioned in the background section.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a drug dispensing device, including a drug dispensing tank, a turbine installed in the middle of the upper end of the drug dispensing tank, a worm gear meshing with one side of the turbine, a mixing component installed at the lower end of the turbine, a guide tube installed at one end of the worm gear, a discharge pipe installed at the lower end of the guide tube away from the worm gear, a hopper assembly installed at the upper end of the guide tube away from the discharge pipe, and a support assembly provided outside the hopper assembly, the support assembly being located above the drug dispensing tank.
[0007] Based on the above characteristics: when medication needs to be prepared, one type of medication can be added into the hopper assembly first. At this time, the support assembly can not only support and fix the hopper assembly, but also weigh the added medication. When the required amount is reached, the hopper assembly can be opened to allow the medication to fall into the guide tube. Subsequently, the remaining medications can be added into the hopper assembly in sequence and weighed. When the medications are transported inside the guide tube, the medications falling adjacent to each other will be pre-mixed first. Then, the medications will fall into the preparation tank through the discharge pipe for storage and stirring. After all the medications have been added, the mixed medications can be discharged. This method not only allows for weighing before the medications are added, ensuring the accuracy of the preparation, but also ensures that the medications are mixed evenly, improving the quality of the preparation.
[0008] Preferably, a discharge pipe is installed at the bottom of the dispensing tank, and a sealing valve is installed at the lower end of the discharge pipe.
[0009] Based on the above characteristics: when it is not necessary to discharge the medicine inside the mixing tank, the sealing valve will be in the closed state; when it is necessary to discharge the mixed medicine, the sealing valve can be opened to allow the medicine to be discharged from the discharge pipe.
[0010] Preferably, the mixing assembly includes a bearing and a transmission connecting rod mounted on the lower end of the bearing. Fixed sleeves are installed at intervals on the outside of the transmission connecting rod. Stirring blades are symmetrically installed on both sides of the fixed sleeves. A spiral blade is installed at the bottom end of the transmission connecting rod.
[0011] Based on the above characteristics: when the worm drives the turbine to rotate, the turbine will drive the transmission connecting rod to rotate through the bearing. At this time, the transmission connecting rod can drive the stirring blade to mix the medicine through the fixed sleeve. The spiral blade at the bottom of the transmission connecting rod will be located at the upper end of the inner cavity of the discharge pipe, so that the spiral blade can rotate inside the discharge pipe at the same time. When the medicine is discharged, not only can uniform discharge be achieved, but also blockage inside the discharge pipe can be avoided as much as possible.
[0012] Preferably, a feed pipe is installed at the upper end of the guide tube on the side away from the discharge pipe, a screw conveyor is installed in the inner cavity of the guide tube, and a slot is opened at the lower end of the guide tube on the side away from the feed pipe, and the slot is fixedly connected to the discharge pipe.
[0013] Based on the above characteristics: the worm can drive the screw conveyor to rotate, and the screw conveyor will move the medicine towards the empty trough inside the guide tube. When the medicine reaches the empty trough, it can fall into the medicine tank through the empty trough and the discharge pipe.
[0014] Preferably, the hopper assembly includes a hopper and a limiting baffle fixedly installed on the outer side of the upper end of the hopper. An anti-detachment tube is installed at the bottom of the limiting baffle, and a solenoid valve is installed at the upper end of the anti-detachment tube.
[0015] Based on the above characteristics: when the medicine is put into the hopper, the solenoid valve will be closed to block the anti-dislodgement tube. After the required amount is weighed, the solenoid valve can be opened to allow the medicine to be discharged through the anti-dislodgement tube. When it is necessary to weigh the next medicine, the solenoid valve can be closed again to block the anti-dislodgement tube.
[0016] Preferably, the maximum diameter of the anti-detachment insert is the same as the inner diameter of the feed pipe, and the anti-detachment insert is movably connected to the feed pipe.
[0017] Based on the above features: the lower end of the hopper is connected to the inside of the feed pipe through an anti-detachment tube, which not only makes it convenient for the medicine discharged through the anti-detachment tube to fall into the guide tube through the feed pipe, but also allows the hopper to be lifted manually when disassembly is required.
[0018] Preferably, the support assembly includes a leg and an annular bracket mounted on the upper end of the leg, and a weighing sensor is mounted on the bottom surface of the annular bracket.
[0019] Based on the above features: the ring support has a hollow structure in the middle, which facilitates the insertion of the hopper assembly. The ring support can weigh the hopper assembly through a weighing sensor.
[0020] The beneficial effects of this utility model are:
[0021] 1. Facilitates uniform feeding of medicines, preventing them from piling up in one place. The medicines fall into the guide tube through the hopper and feed pipe. At this time, the motor drives the worm and screw conveyor to rotate through the drive shaft. When the screw conveyor rotates, it will move the medicines towards the empty trough inside the guide tube. Finally, the medicines can fall into the dispensing tank through the empty trough and discharge pipe. At the same time, when the worm rotates, it will also drive the turbine to rotate synchronously. At this time, the turbine will drive the transmission connecting rod to rotate through the bearing. When the transmission connecting rod rotates, it can not only drive the stirring blades through the fixed sleeve to mix and stir the medicines, avoiding them from piling up in one place, but also drive the spiral blade to rotate inside the discharge pipe, avoiding blockage inside the discharge pipe when the medicines are discharged.
[0022] 2. Facilitates weighing when adding medicines, avoiding inaccurate medicine ratios that could affect production quality. The hopper is limited by a limit baffle in the middle of the support assembly. When medicines are added into the hopper, the solenoid valve will be closed to block the anti-detachment tube. At this time, the weighing sensor will weigh the medicines in the hopper assembly. When the required amount is reached, the solenoid valve can be opened to allow the medicines to be discharged through the anti-detachment tube. When it is necessary to weigh the next medicine, the solenoid valve can be closed again to block the anti-detachment tube. Attached Figure Description
[0023] Figure 1 A schematic diagram of the overall structure of a medicine dispensing device provided by this utility model;
[0024] Figure 2 A cross-sectional view of the internal compartment of a dispensing device provided by this utility model;
[0025] Figure 3 A cross-sectional view of the inside of the guide tube of a dispensing device provided by this utility model;
[0026] Figure 4 This utility model provides an exploded view of the hopper assembly and support assembly of a drug dispensing device.
[0027] In the diagram: 1. Dosing tank; 11. Discharge pipe; 12. Sealing valve; 2. Turbine; 3. Worm gear; 4. Mixing assembly; 41. Bearing; 42. Transmission connecting rod; 43. Fixing sleeve; 44. Stirring blade; 45. Spiral cutter; 5. Guide tube; 51. Feed pipe; 52. Screw conveyor; 53. Empty trough; 6. Discharge pipe; 7. Hopper assembly; 71. Hopper; 72. Limiting baffle; 73. Anti-detachment insert; 74. Solenoid valve; 8. Support assembly; 81. Support leg; 82. Annular bracket; 83. Weighing sensor. Detailed Implementation
[0028] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0029] See attached document Figure 1-4 This utility model provides a drug dispensing device, including a drug dispensing tank 1. A turbine 2 is installed in the middle of the upper end of the drug dispensing tank 1. A worm gear 3 is meshed with one side of the turbine 2. A mixing component 4 is installed at the lower end of the turbine 2. A guide tube 5 is installed at one end of the worm gear 3 (a motor is installed at the end of the worm gear 3 away from the guide tube 5. The motor drives the worm gear 3 to rotate through a drive shaft. When the worm gear 3 rotates, the medicine can be transported inside the guide tube 5. At the same time, the worm gear 3 will also drive the mixing component 4 to rotate, so that the mixing component 4 can rotate inside the drug dispensing tank 1 to mix and stir the medicine). A discharge pipe 6 is installed at the lower end of the side of the guide tube 5 away from the worm gear 3. A hopper assembly 7 is installed at the upper end of the side of the guide tube 5 away from the discharge pipe 6. A support assembly 8 is provided outside the hopper assembly 7. The support assembly 8 is located above the drug dispensing tank 1.
[0030] When medication needs to be prepared, one type of medication can be added into the hopper assembly 7 first. At this time, the support assembly 8 can not only support and fix the hopper assembly 7, but also weigh the added medication. When the required amount is reached, the hopper assembly 7 can be opened to allow the medication to fall into the guide tube 5. Subsequently, the remaining medications can be added into the hopper assembly 7 in sequence and weighed. When the medications are conveyed inside the guide tube 5, the adjacent medications will be pre-mixed first. Then, the medications will fall into the preparation tank 1 through the discharge pipe 6 for storage and stirring. After all the medications have been added, the mixed medications can be discharged. This method not only allows for weighing before medication is added, ensuring the accuracy of the preparation, but also ensures that the medications are mixed evenly, improving the quality of the preparation.
[0031] Furthermore, a discharge pipe 11 is installed at the bottom of the dispensing tank 1, and a sealing valve 12 is installed at the lower end of the discharge pipe 11.
[0032] When the medicine inside the mixing tank 1 is not needed to be discharged, the sealing valve 12 will be closed. When the mixed medicine needs to be discharged, the sealing valve 12 can be opened to allow the medicine to be discharged from the discharge pipe 11.
[0033] Furthermore, the mixing component 4 includes a bearing 41 and a transmission connecting rod 42 mounted on the lower end of the bearing 41. A fixing sleeve 43 is installed at intervals on the outside of the transmission connecting rod 42. Stirring blades 44 are symmetrically installed on both sides of the fixing sleeve 43. A spiral blade 45 is installed at the bottom end of the transmission connecting rod 42.
[0034] When the worm gear 3 drives the turbine 2 to rotate, the turbine 2 will drive the transmission connecting rod 42 to rotate through the bearing 41. At this time, the transmission connecting rod 42 can drive the stirring blade 44 to mix and stir the medicine through the fixed sleeve 43. The spiral blade 45 at the bottom of the transmission connecting rod 42 will be located at the upper end of the inner cavity of the discharge pipe 11, so that the spiral blade 45 can rotate simultaneously inside the discharge pipe 11. At this time, when the medicine is discharged, not only can uniform discharge be achieved, but also blockage inside the discharge pipe 11 can be avoided as much as possible.
[0035] Furthermore, a feed pipe 51 is installed on the upper end of the guide pipe 5 on the side away from the discharge pipe 6, a screw conveyor 52 is installed in the inner cavity of the guide pipe 5, and a slot 53 is opened on the lower end of the guide pipe 5 on the side away from the feed pipe 51. The slot 53 is fixedly connected to the discharge pipe 6.
[0036] After being weighed by the hopper assembly 7, the medicine will fall into the guide tube 5 through the feed pipe 51. At this time, the worm gear 3 can drive the screw conveyor 52 to rotate, and the screw conveyor 52 will move the medicine towards the empty trough 53 inside the guide tube 5. When the medicine reaches the position of the empty trough 53, the medicine can fall into the medicine preparation tank 1 through the empty trough 53 and the discharge pipe 6.
[0037] Furthermore, the hopper assembly 7 includes a hopper 71 and a limiting baffle 72 fixedly installed on the outer side of the upper end of the hopper 71. An anti-detachment tube 73 is installed at the bottom of the limiting baffle 72, and a solenoid valve 74 is installed at the upper end of the anti-detachment tube 73.
[0038] The hopper 71 is limited in the middle of the support assembly 8 by the limiting baffle 72. When the medicine is put into the hopper 71, the solenoid valve 74 will be closed to block the anti-dislodgement tube 73. When the required amount is weighed, the solenoid valve 74 can be opened to allow the medicine to be discharged through the anti-dislodgement tube 73. When it is necessary to weigh the next medicine, the solenoid valve 74 can be closed again to block the anti-dislodgement tube 73.
[0039] Furthermore, the maximum diameter of the anti-detachment insert 73 is the same as the inner diameter of the feed tube 51, and the anti-detachment insert 73 is movably inserted into the feed tube 51.
[0040] The lower end of the hopper 71 is inserted into the inside of the feed pipe 51 through the anti-detachment tube 73. This not only makes it convenient for the medicine discharged through the anti-detachment tube 73 to fall into the guide tube 5 through the feed pipe 51, but also allows the hopper 71 to be lifted manually when disassembly is required.
[0041] Furthermore, the support assembly 8 includes a support leg 81 and an annular bracket 82 mounted on the upper end of the support leg 81. A weighing sensor 83 (model HX711) is mounted on the bottom surface of the annular bracket 82. The weighing sensor 83 is electrically connected to the display to facilitate the display of the weighed weight. The display is not shown in the figure.
[0042] The support leg 81 can be supported and fixed at the lower end of the annular bracket 82. The middle of the annular bracket 82 is hollow, which facilitates the insertion of the hopper assembly 7. At the same time, since the diameter of the limiting baffle 72 on the upper outer side of the hopper 71 is larger than the inner diameter of the annular bracket 82, the hopper assembly 7 can be limited in the middle of the annular bracket 82. At this time, the annular bracket 82 can weigh the hopper assembly 7 through the weighing sensor 83.
[0043] The usage process of this utility model is as follows: The hopper 71 is limited in the middle of the support assembly 8 by the limiting baffle 72. When the medicine is put into the hopper 71, the solenoid valve 74 will be closed to block the anti-detachment tube 73. At this time, the weighing sensor 83 will weigh the medicine in the hopper assembly 7. When the required value is reached, the solenoid valve 74 can be opened to allow the medicine to be discharged through the anti-detachment tube 73. When it is necessary to weigh the next medicine, the solenoid valve 74 can be closed again to block the anti-detachment tube 73. The medicine discharged through the anti-detachment tube 73 will fall into the guide tube 5 through the feed pipe 51. At this time, the motor drives the worm gear 3 and the screw conveyor through the drive shaft. When the screw conveyor 52 rotates, it will drive the medicine to move towards the empty trough 53 inside the guide tube 5. When the medicine reaches the empty trough 53, it can fall into the medicine tank 1 through the empty trough 53 and the discharge pipe 6. At the same time, when the worm 3 rotates, it will also drive the turbine 2 to rotate. At this time, the turbine 2 will drive the transmission connecting rod 42 to rotate through the bearing 41. When the transmission connecting rod 42 rotates, it can not only drive the stirring blade 44 to mix and stir the medicine through the fixed sleeve 43, but also drive the spiral blade 45 to rotate inside the discharge pipe 11, so as to avoid the blockage of the discharge pipe 11 when the medicine is discharged.
[0044] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.
Claims
1. A drug dispensing device, comprising a drug dispensing tank (1), characterized in that: A turbine (2) is installed in the middle of the upper end of the medicine preparation tank (1). A worm (3) is meshed with one side of the turbine (2). A mixing component (4) is installed at the lower end of the turbine (2). A guide tube (5) is installed at one end of the worm (3). A discharge pipe (6) is installed at the lower end of the guide tube (5) away from the worm (3). A hopper assembly (7) is installed at the upper end of the guide tube (5) away from the discharge pipe (6). A support assembly (8) is provided outside the hopper assembly (7). The support assembly (8) is located above the medicine preparation tank (1).
2. The dispensing device according to claim 1, characterized in that: The bottom of the dispensing tank (1) is equipped with a discharge pipe (11), and a sealing valve (12) is installed at the lower end of the discharge pipe (11).
3. The dispensing device according to claim 2, characterized in that: The mixing component (4) includes a bearing (41) and a transmission link (42) mounted on the lower end of the bearing (41). A fixed sleeve (43) is installed at intervals on the outside of the transmission link (42). Stirring blades (44) are symmetrically installed on both sides of the fixed sleeve (43). A spiral blade (45) is installed at the bottom end of the transmission link (42).
4. A dispensing device according to claim 1, characterized in that: A feed pipe (51) is installed on the upper end of the guide pipe (5) away from the discharge pipe (6). A screw conveyor (52) is installed in the inner cavity of the guide pipe (5). A slot (53) is opened on the lower end of the guide pipe (5) away from the feed pipe (51). The slot (53) is fixedly connected to the discharge pipe (6).
5. A dispensing device according to claim 4, characterized in that: The hopper assembly (7) includes a hopper (71) and a limiting baffle (72) fixedly installed on the outer side of the upper end of the hopper (71). An anti-detachment tube (73) is installed at the bottom of the limiting baffle (72), and a solenoid valve (74) is installed at the upper end of the anti-detachment tube (73).
6. A dispensing device according to claim 5, characterized in that: The maximum diameter of the anti-detachment tube (73) is the same as the inner diameter of the feed tube (51), and the anti-detachment tube (73) is movably connected to the feed tube (51).
7. A dispensing device according to claim 1, characterized in that: The support assembly (8) includes a leg (81) and an annular bracket (82) mounted on the upper end of the leg (81), and a weighing sensor (83) is mounted on the bottom surface of the annular bracket (82).