Medicine grinding feeder
By designing the grinding structure of the cylinder and core rod, efficient grinding and precise delivery of solid drugs are achieved, solving the problems of drug splashing and mixing contamination, and ensuring the effectiveness of drug use and dosage control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI KANGDELAI ENTERPRISE DEV GRP CO LTD
- Filing Date
- 2024-12-05
- Publication Date
- 2026-05-05
AI Technical Summary
In existing technologies, solid drugs are prone to splashing when processed into powder, resulting in drug loss and mixing, making it difficult to accurately control the dosage, and different drugs are easily mixed and contaminated, affecting the efficacy.
A drug grinding and feeding device is designed, including a cylinder and a core rod. The cylinder has a first grinding surface that is connected to the feeding device assembly, and the first end of the core rod has a second grinding surface. The drug is ground by the relative movement of the first grinding surface and the second grinding surface, and the ground powder is directly pushed to the feeding device assembly by the core rod.
It effectively avoids splashing and transfer loss of drugs during the grinding process, ensures precise control of drugs, avoids drug mixing and contamination, and improves the effectiveness of drug use.
Smart Images
Figure CN224193795U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a drug grinding and feeding device. Background Technology
[0002] Since some patients cannot take solid medications directly, they usually need to be processed into powder using a mortar and pestle before being delivered directly to the patient's stomach via a feeding device.
[0003] Conventional mortars and pestles are large in size, making it easy for medicine to splash. Furthermore, some medicine is lost during the process of transferring the powdered medicine from the mortar or pestle to the feeder, making it impossible to control the dosage.
[0004] At the same time, when processing solid drugs using a mortar and pestle, different drugs are easily mixed and contaminated, making it difficult to guarantee the effectiveness of the drugs. Utility Model Content
[0005] In view of the above-mentioned problems in the prior art, the present invention provides a drug grinding and feeding device.
[0006] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:
[0007] A drug grinding and feeding device includes a cylinder and a core rod; a first end of the cylinder can be connected to a feeding device assembly, and a second end can be inserted into the first end of the core rod.
[0008] The cylinder is provided with a first grinding surface that communicates with the feeder assembly, and the first end of the core rod is provided with a second grinding surface; after the solid medicine is placed into the cylinder, the solid medicine can be ground by the relative movement of the first grinding surface and the second grinding surface.
[0009] Preferably, the first end of the cylinder is provided with a first extrusion platform, the first extrusion platform is provided with a through hole, and the cylinder is connected to the feeder assembly through the through hole;
[0010] The first grinding surface is formed on the side wall of the first extrusion table facing the second end of the cylinder.
[0011] Preferably, the first grinding surface at the through hole extends towards the second end of the cylinder in a direction that gradually approaches the second end of the cylinder.
[0012] Preferably, the first grinding surface is provided with a plurality of inwardly recessed grinding grooves.
[0013] Preferably, the second grinding surface is provided with a plurality of outwardly protruding grinding blocks, which can extend into the grinding groove so that the first grinding surface and the second grinding surface are in contact.
[0014] Preferably, the cross-sectional shape of the grinding groove and / or the grinding block is conical.
[0015] Preferably, the second grinding surface is provided with a frustum extending in a direction away from the core rod. The frustum can extend into the through hole, and as the first grinding surface and the second grinding surface approach each other, the gap between the frustum and the through hole tends to decrease.
[0016] Preferably, the first extrusion platform is provided with a connector extending in a direction away from the cylinder, and a channel is formed in the connector, the channel being connected to the through hole, and the channel being able to allow the frustum to extend into.
[0017] The cylinder is connected to the feeder assembly via the connector.
[0018] Preferably, the middle position of the channel is constricted; when the frustum extends into the channel, the frustum can abut against the constricted position to block the channel.
[0019] Preferably, the cylinder and / or the core rod are provided with a sliding seal, which can seal the gap between the circumferential sidewall of the first end of the core rod and the inner sidewall of the cylinder when the first end of the core rod extends into the cylinder.
[0020] This utility model has at least the following beneficial effects:
[0021] 1. Since the solid drug in this application is ground in the grinding space formed by the cylinder, the first grinding surface and the second grinding surface, the splashing of the solid drug during the grinding process can be better avoided. At the same time, the grinding space is connected to the feeder assembly. After the solid drug is ground, the core rod can directly push the powder formed by the solid drug into the feeder assembly, avoiding the need to transfer the powder, thus better avoiding drug loss and enabling more precise control of the dosage.
[0022] 2. This application can process different types of solid drugs separately, that is, grind one type of solid drug and deliver it to the patient's stomach through the feeding device component, and then grind another type of solid drug for feeding. This can better avoid mixing and contamination between different drugs and avoid affecting the efficacy of the drugs. Attached Figure Description
[0023] Figure 1An exploded view of the cylinder, seal, and core rod in some embodiments of this application is shown;
[0024] Figure 2 This illustration shows a first assembly diagram of the cylinder and core rod in some embodiments of this application;
[0025] Figure 3 This illustration shows a second assembly diagram of the cylinder and core rod in some embodiments of this application;
[0026] Figure 4 The illustration shows a perspective view of the first and second grinding surfaces after the core rod has been inserted into the cylinder in some embodiments of this application.
[0027] Figure 5 A first schematic diagram of the core rod is shown in some embodiments of this application;
[0028] Figure 6 A second schematic diagram of the core rod is shown in some embodiments of this application;
[0029] Figure 7 A schematic diagram of the seal in some embodiments of this application is shown;
[0030] Figure 8 A partial schematic diagram of the first end of the core rod in some embodiments of this application is shown;
[0031] Figure 9 A top view of the core rod in some embodiments of this application is shown.
[0032] The names of the parts referred to by the numbers in the attached diagram are as follows:
[0033] 100. Cylinder; 110. First extrusion table; 111. Through hole; 112. First grinding surface; 112a. Grinding groove; 113. Connector; 113a. Channel; 113b. Beveled opening; 113c. Narrow opening; 200. Core rod; 210. Second extrusion table; 211. Second grinding surface; 211a. Grinding block; 211b. Frustum; 212. Mounting groove; 212a. Seal; 220. Support plate; 230. Handle; 300. Grinding space. Detailed Implementation
[0034] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.
[0035] like Figure 1-8As shown, this embodiment provides a drug grinding and feeding device, which includes a cylindrical body 100 and a core rod 200. The cylindrical body 100 is a hollow structure with openings at both ends, and the first end of the cylindrical body 100 can be connected to a feeding device assembly (not shown in the figure). The core rod 200 has a certain length, and the first end of the core rod 200 can extend into the cylindrical body 100 from the second end of the cylindrical body 100. Furthermore, a first grinding surface 112 is provided inside the cylindrical body 100, which is connected to the feeding device assembly, and a second grinding surface 211 is provided on the first end of the core rod 200.
[0036] When using the drug grinding feeder in this embodiment, firstly, the core rod 200 is taken out from the cylinder 100, the solid drug is placed into the cylinder 100, the first end of the cylinder 100 is connected to the feeder assembly, and then the first end of the core rod 200 is extended into the cylinder 100 from the second end of the cylinder 100, so that a grinding space 300 can be formed between the first grinding surface 112 and the second grinding surface 211, and the solid drug is placed in the grinding space 300. Since the first grinding surface 112 is connected to the feeder assembly, the grinding space 300 can be connected to the feeder assembly. Users can select or combine two grinding methods to make the first grinding surface 112 and the second grinding surface 211 move relative to each other to grind solid drugs. First, by pushing and pulling the core rod 200 back and forth, the first grinding surface 112 and the second grinding surface 211 squeeze the solid drug, thereby continuously breaking the solid drug into powder. Second, by applying a force to the core rod 200, the second grinding surface 211 tends to move towards the first grinding surface 112, while the core rod 200 rotates circumferentially, thereby realizing the compression and grinding of the solid drug by the first grinding surface 112 and the second grinding surface 211, thereby continuously breaking the solid drug into powder. Third, the solid drug can be ground by combining the above two grinding methods, which will not be elaborated further.
[0037] Since the first grinding surface 112 is connected to the feeding device assembly, the grinding space 300 is also connected to the feeding device assembly. After the first grinding surface 112 and the second grinding surface 211 grind the solid medication into powder, the core rod 200 is further pushed, causing the second grinding surface 211 to move towards and eventually adhere to the first grinding surface 112. Under the push of the second grinding surface 211, the powder formed from the solid medication within the grinding space 300 is pushed towards the feeding device assembly, and then directly delivered to the patient's stomach via the feeding device assembly. It should be noted that in some cases, after the solid medication is ground into powder, the core rod 200 can be removed from the cylinder 100, warm water can be added to the cylinder 100, and then the core rod 200 can be reinserted into the cylinder 100. The pushing action of the core rod 200 can then achieve administration via warm water. In some cases, it is necessary to grind and feed multiple solid medications. In this case, different types of solid medications can be processed separately. One type of solid medication is ground and delivered to the patient's stomach through the feeding device before another type of solid medication is ground and fed. This can better avoid mixing and contamination between different medications and prevent affecting the efficacy of the medication.
[0038] It is worth mentioning that, since the solid drug in this embodiment is ground in the grinding space 300 formed by the cylinder 100, the first grinding surface 112 and the second grinding surface 211, the splashing of the solid drug during the grinding process can be better avoided. At the same time, the grinding space 300 is connected to the feeder assembly. After the solid drug is ground, the core rod 200 can directly push the powder formed by the solid drug into the feeder assembly, avoiding the need to transfer the powder, thus better avoiding the loss of the drug and enabling more precise control of the dosage.
[0039] In some embodiments, a first extrusion platform 110 is provided at the end of the first end of the cylinder 100, which can block the first end of the cylinder 100; a through hole 111 is provided on the first extrusion platform 110, and the first end of the cylinder 100 is connected to the feeder assembly through the through hole 111; wherein the first extrusion platform 110 forms the aforementioned first grinding surface 112 on the side wall facing the second end of the cylinder 100.
[0040] Understandably, when the first end of the core rod 200 extends into the cylinder 100 from the second end, the grinding space 300 formed by the cylinder 100, the first grinding surface 112, and the second grinding surface 211 can be connected to the feeder assembly through the through hole 111 on the first extrusion table 110. After the first grinding surface 112 and the second grinding surface 211 grind the solid drug into powder, the drug can be directly fed into the feeder assembly through the through hole 111 on the first extrusion table 110 by the push of the core rod 200. This avoids the need to transfer the powder, better avoids drug loss, and allows for more precise control of the dosage.
[0041] In some embodiments, in the direction from the second end to the first end of the cylinder 100, the first extrusion surface tends to bulge away from the second end of the cylinder 100. More specifically, the first grinding surface 112 surrounding the through hole 111 and the first grinding surface 112 surrounding the inner wall of the cylinder 100 tend to gradually approach the second end of the cylinder 100. When the cylinder 100 is placed vertically with the first end of the cylinder 100 facing downwards, the powder formed from the solid drug on the first grinding surface 112 tends to move toward the through hole 111.
[0042] Understandably, when the solid drug is placed into the cylinder 100, the first end of the core rod 200 is inserted into the cylinder 100. By rotating and pushing the core rod 200, the core rod 200 pushes the solid drug toward the first grinding surface 112 through the second grinding surface 211 and grinds it. During this process, the cylinder 100 can be rotated to a vertical position so that the first end of the cylinder 100 faces downward. This allows the solid drug between the first grinding surface 112 and the second grinding surface 211 to roll on the first grinding surface 112 to the middle position of the first grinding surface 112, and then grind the solid drug again through the movement of the second grinding surface 211.
[0043] It is worth mentioning that the design of the shape of the first grinding surface 112 enables it to guide solid drugs or powder formed from solid drugs. By rotating the cylinder 100 to a vertical position with the first end of the cylinder 100 facing downwards, the solid drug can be guided by gravity to the middle position of the first grinding surface 112. This allows the second grinding surface 211 to fully compress and grind the solid drug with the first grinding surface 112, thus ensuring a better grinding effect and forming uniform particles. Of course, when the solid drug is formed into powder, the first grinding surface 112 can also guide the powder, so that when the core rod 200 is pushed, the powder can move towards the through hole 111 and be pushed by the core rod 200 into the feeding device assembly and directly into the patient's stomach, resulting in higher efficiency and better effect.
[0044] In some embodiments, grinding grooves 112a are formed inwardly on the first grinding surface 112, and there are multiple grinding grooves 112a. It is understood that solid drugs have a certain hardness, and crushing solid drugs requires a large extrusion force, which leads to inconvenience in use. In this embodiment, after the solid drug is placed into the cylinder 100, the first end of the core rod 200 is inserted into the cylinder 100, causing the second grinding surface 211 to move closer to the first grinding surface 112. During this process, the second grinding surface 211 pushes the solid drug towards the first grinding surface 112 until the solid drug comes into contact with the first grinding surface 112. Because the first grinding surface 112 has multiple grinding grooves 112a, the surface of the first grinding surface 112 is uneven. When the core rod 200 passes through the cylinder 112, the first end of the core rod 200 is inserted into the cylinder 100, causing the second grinding surface 211 to move closer to the first grinding surface 112. During this process, the second grinding surface 211 pushes the solid drug towards the first grinding surface 112 until the solid drug comes into contact with the first grinding surface 112. Since the first grinding surface 112 has multiple grinding grooves 112a, its surface is uneven. As the second grinding surface 211 continues to move closer to the first grinding surface 112, the solid drug will be squeezed against the side edge of the grinding groove 112a. Then, under the action of the side edge of the grinding groove 112a, cracks will appear in the corresponding position of the solid drug, thereby breaking the solid drug. Then, the first end of the core rod 200 is moved away from the cylinder 100 by a certain distance, and the cylinder 100 is shaken to change the position of the solid drug. The core rod 200 is pushed again to move the second grinding surface 211 closer to the first grinding surface 112, thereby achieving secondary breaking of the solid drug. After repeating the above operation, the solid drug can be formed into powder.
[0045] It is understandable that by setting multiple grinding grooves 112a, the user can apply a small pushing force to the core rod 200, and the solid drug can be crushed by the cooperation of the side edge of the grinding groove 112a and the second grinding groove 112a, which can achieve a better labor-saving effect and make the crushing of solid drugs more convenient and faster.
[0046] In some embodiments, a plurality of grinding blocks 211a are provided on the second grinding surface 211. The number of grinding blocks 211a is multiple, preferably the number of grinding blocks 211a corresponds to the number of grinding grooves 112a, and the shape and size of the grinding blocks 211a and the grinding grooves 112a are also consistent. The positions of the grinding blocks 211a and the positions of the grinding grooves 112a correspond one-to-one, so that when the second grinding surface 211 approaches the first grinding surface 112, the grinding blocks 211a can extend into the corresponding grinding grooves 112a, thereby enabling the first grinding surface 112 to fit against the second grinding surface 211.
[0047] By setting grinding blocks 211a on the second grinding surface 211, the side edges of the grinding blocks 211a can also cooperate with the first grinding surface 112 or the grinding groove 112a to squeeze the solid drug, thereby causing cracks to appear at the corresponding positions of the solid drug, thus achieving the breaking of the solid drug, further improving the labor-saving effect, and making the breaking of the solid drug more convenient and faster.
[0048] It should be noted that the grinding block 211a can fully fill the grinding tank 112a. During the extrusion grinding of solid drugs, the grinding block 211a can extend into the grinding tank 112a, so that the grinding block 211a can extrude and grind the solid drugs in the grinding tank 112a, thereby making the grinding of solid drugs more thorough and improving the grinding effect of solid drugs.
[0049] In some embodiments, both the grinding groove 112a and the grinding block 211a have a conical cross-sectional shape.
[0050] It should be noted that when the solid drug is placed into the cylinder 100, the first end of the core rod 200 is inserted into the cylinder 100. Since the cross-sectional shape of the grinding block 211a is conical, the side edge of the grinding block 211a faces the first grinding surface 112 directly. As the second grinding surface 211 moves closer to the first grinding surface 112, the side edge of the grinding block 211a will first come into contact with the solid drug, so that the side edge of the grinding block 211a cooperates with the first grinding surface 112. When the second grinding surface 211 continues to move closer to the first grinding surface 112, the side edge of the grinding block 211a can cut the solid drug, causing the solid drug to break, which can better improve the labor-saving effect and make the breaking of the solid drug more convenient and faster.
[0051] Furthermore, the grinding grooves 112a on the first grinding surface 112 are continuously arranged along the circumferential direction of the first grinding surface 112, so that two adjacent grinding grooves 112a can share the same side edge. When the solid drug is put into the cylinder 100, when the solid drug falls on the first grinding surface 112, it will first come into contact with the same side edge shared by the two adjacent grinding grooves 112a. Then, when the second grinding surface 211 moves close to the first grinding surface 112, the same side edge shared by the two adjacent grinding grooves 112a will cut the solid drug, causing the solid drug to break. This can better improve the labor-saving effect and make the breaking of solid drugs more convenient and faster.
[0052] In some embodiments, a frustum 211b is provided on the second grinding surface 211. The frustum 211b extends away from the core rod 200. When the first end of the core rod 200 is inserted into the cylinder 100 and the core rod 200 is pushed so that the first grinding surface 112 moves closer to the second grinding surface 211, the frustum 211b on the first grinding surface 112 can extend into the through hole 111 on the second grinding surface 211. This allows the frustum 211b to block the through hole 111 to a certain extent during the extrusion and grinding of the solid drug by the first grinding surface 112 and the second grinding surface 211, preventing clumps of solid drug from entering the feeder assembly through the through hole 111.
[0053] Furthermore, as the second grinding surface 211 approaches the first grinding surface 112 and comes into contact with it, the frustum 211b also penetrates deeper into the through hole 111. During this process, the gap between the frustum 211b and the through hole 111 gradually narrows, meaning that the sealing effect of the frustum 211b on the through hole 111 becomes better and better.
[0054] It is important to note that during the extrusion and grinding of the solid drug by the first grinding surface 112 and the second grinding surface 211, the closer the second grinding surface 211 is to the first grinding surface 112, the smaller the volume of the solid drug clump between the first grinding surface 112 and the second grinding surface 211. Correspondingly, as the second grinding surface 211 gets closer to the first grinding surface 112, the gap between the frustum 211b and the through hole 111 becomes smaller. This means that the sealing effect of the frustum 211b on the through hole 111 changes with the size of the solid drug clump, ensuring that the gap between the frustum 211b and the through hole 111 remains smaller than the volume of the solid drug clump. This effectively prevents the solid drug clump from entering the feeder assembly through the through hole 111, further improving the grinding effect of the solid drug.
[0055] Furthermore, it can be understood that the cross-sectional diameter of the frustum 211b gradually decreases in the direction away from the core rod 200. As the second grinding surface 211 moves closer to the first grinding surface 112, the diameter of the frustum 211b entering the through hole 111 becomes larger and larger, thereby making the gap between the frustum 211b and the through hole 111 smaller and smaller, thus achieving the effect of preventing solid clumps of medicine from entering the feeder assembly through the through hole 111.
[0056] In some embodiments, the axis of the frustum 211b is aligned with the axis of the core rod 200, and the axis of the through hole 111 is aligned with the axis of the cylinder 100, so that when the first end of the core rod 200 extends into the cylinder 100 and the frustum 211b extends into the through hole 111, the core rod 200 can rotate circumferentially within the cylinder 100, thereby achieving the grinding of the solid drug by the first grinding surface 112 and the second grinding surface 211.
[0057] Furthermore, when the core rod 200 is inserted into the cylinder 100, the axis of the core rod 200 is aligned with the axis of the cylinder 100, thereby aligning the axis of the frustum 211b with the axis of the through hole 111. This ensures that the size of the gap between the frustum 211b and the through hole 111 remains stable, effectively preventing clumps of solid medication from entering the feeder assembly through the through hole 111.
[0058] Furthermore, in combination Figure 9 As shown, the centripetal angle of the grinding groove 112a provided on the first grinding surface 112 is between 0° and 30°, the depth is between 0.5mm and 3mm, and the width is between 1mm and 6mm; correspondingly, the centripetal angle of the grinding block 211a provided on the second grinding surface 211 is between 0° and 30°, the height is between 0.5mm and 3mm, and the width is between 1mm and 6mm.
[0059] In some embodiments, a connector 113 is provided on the first extrusion table 110. The connector 113 extends in a direction away from the cylinder 100. The cylinder 100 is specifically connected to the feeder assembly through the connector 113. A channel 113a is provided in the connector 113. Furthermore, the axis of the connector 113 is aligned with the axis of the through hole 111, so that the channel 113a in the connector 113 can communicate with the through hole 111.
[0060] Furthermore, a bevel 113b is provided at the end of the connector 113 away from the cylinder 100, through which the connector 113 can be connected to the feeder assembly. When the first end of the core rod 200 is inserted into the cylinder 100, the core rod 200 is pushed, causing the second grinding surface 211 to move closer to the first grinding surface 112. During this process, the frustum 211b can pass through the through hole 111 into the channel 113a inside the connector 113. The channel 113a can accommodate the frustum 211b, preventing the frustum 211b from interfering with the relative movement of the first grinding surface 112 and the second grinding surface 211.
[0061] It is particularly important to note that after the solid drug is ground, when the powder between the first grinding surface 112 and the second grinding surface 211 is pushed into the feeder assembly, the second grinding surface 211 moves closer to the first grinding surface 112, so that the powder in the grinding space 300 enters the channel 113a through the through hole 111. The frustum 211b can further push the powder in the channel 113a, so that the powder can smoothly enter the feeder assembly. This can better prevent the powder from clogging in the through hole 111 and the channel 113a, so that all the powder formed by grinding the solid drug can be pushed into the feeder assembly, and can better prevent the powder from adhering to the through hole 111 or the channel 113a, which would reduce the amount of medicine.
[0062] In some embodiments, the middle position of the channel 113a provided in the connector 113 is shaped as a constriction 113c. When the frustum 211b extends into the channel 113a through the through hole 111, as the second grinding surface 211 approaches the first grinding surface 112, the end of the frustum 211b away from the core rod 200 can abut against the constriction 113c, so that the frustum 211b can block the channel 113a.
[0063] Understandably, after the frustum 211b blocks the channel 113a, a small gap exists between the second grinding surface 211 and the first grinding surface 112. This gap is used to accommodate powder formed from the solid drug, and the particle size of the powder in this gap meets the patient's needs. To elaborate further, as the second grinding surface 211 approaches the first grinding surface 112 to grind the lumpy solid drug, the frustum 211b gradually approaches the constriction 113c until it blocks it. In this state, the first grinding surface 112 and the second grinding surface 211 grind the lumpy solid drug into powder. By blocking the constriction 113c with the frustum 211b, powder leakage through the channel 113a is prevented. After the powdered solid medicine is pushed into the feeder assembly, the sealing of the constriction 113c by the frustum 211b can also prevent the powdered solid medicine from returning to the cylinder 100 through the through hole. This allows all the powder formed by grinding the solid medicine to enter the feeder assembly, which can better prevent the powder from returning to the cylinder 100 and causing a reduction in the amount of medicine.
[0064] In some embodiments, a second extrusion platform 210 is provided on the first end of the core rod 200, and the end face of the second extrusion platform 210 away from the core rod 200 forms a second grinding surface 211. An annular mounting groove 212 is provided on the circumferential sidewall of the second extrusion platform 210, and a sealing member 212a is fixedly installed in the mounting groove 212. When the first end of the core rod 200 is inserted into the cylinder 100, the second extrusion platform 210 can compress the sealing member 212a against the inner sidewall of the cylinder 100, thereby sealing the gap between the second extrusion platform 210 and the inner sidewall of the cylinder 100. This can better confine the solid drug between the first grinding surface 112 and the second grinding surface 211, avoid drug leakage, and ensure that the drug amount is not lost during grinding.
[0065] Furthermore, during the process of the core rod 200 moving to allow the second grinding surface 211 to engage with the first grinding surface 112 to grind the solid drug, the sealing element 212a cleans the powder adhering to the inner wall of the cylinder 100 as the core rod 200 moves, preventing powder from adhering to the inner wall of the cylinder 100. Simultaneously, when the second grinding surface 211 approaches the first grinding surface 112 to push the powder into the feeder assembly, the sealing element 212a, by cleaning the powder adhering to the inner wall of the cylinder 100, can better ensure that all the powder formed by grinding the solid drug enters the feeder assembly, and can better prevent powder from returning to the cylinder 100, thus reducing the amount of drug.
[0066] Furthermore, the seal 212a can be made of rubber strip or rubber ring, and the seal 212a can be fixedly installed in the mounting groove 212 by means of bolts, snap-fit, adhesive, etc., without any particular limitation.
[0067] In some embodiments, the diameter of the core rod 200 is smaller than the inner diameter of the cylinder 100. At least one support plate 220 is provided on the circumferential sidewall of the core rod 200. When the core rod 200 extends into the cylinder 100, the support plate 220 can abut against the inner sidewall of the cylinder 100, thereby maintaining the stability of the core rod 200 and preventing the core rod 200 from shaking in the radial direction when the user pushes, pulls or rotates the core rod 200.
[0068] Furthermore, a handle 230 protruding from the circumferential sidewall of the core rod 200 is provided on the second end of the core rod 200. The handle 230 increases the contact area of the second end of the core rod 200, making it easier for the user to press the second end of the core rod 200 to bring the second grinding surface 211 closer to the first grinding surface 112. Of course, the handle 230 also makes it easier for the user to push, pull or rotate the core rod 200, thus achieving the effect of easy use.
[0069] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.
Claims
1. A medicine grinding and feeding device, characterized in that: It includes a cylinder and a core rod; the first end of the cylinder can be connected to a feeder assembly, and the second end can be inserted into the first end of the core rod; The cylinder is provided with a first grinding surface that communicates with the feeder assembly, and the first end of the core rod is provided with a second grinding surface; after the solid medicine is placed into the cylinder, the solid medicine can be ground by the relative movement of the first grinding surface and the second grinding surface. The first end of the cylinder is provided with a first extrusion platform, and the first extrusion platform is provided with a through hole. The cylinder is connected to the feeder assembly through the through hole; wherein, the side wall of the first extrusion platform facing the second end of the cylinder forms the first grinding surface. The first grinding surface at the through hole extends towards the second end of the cylinder in a direction that gradually approaches the second end of the cylinder.
2. The drug grinder and feeder according to claim 1, characterized in that: The first grinding surface is provided with multiple inwardly recessed grinding grooves.
3. The drug grinder and feeder according to claim 2, characterized in that: The second grinding surface is provided with a plurality of outwardly protruding grinding blocks, which can extend into the grinding groove so that the first grinding surface and the second grinding surface are in contact.
4. The drug grinder and feeder according to claim 3, characterized in that: The cross-sectional shape of the grinding groove and / or the grinding block is conical.
5. The drug grinder and feeder according to claim 1, characterized in that: The second grinding surface is provided with a frustum extending in a direction away from the core rod. The frustum can extend into the through hole, and as the first grinding surface and the second grinding surface approach each other, the gap between the frustum and the through hole tends to decrease.
6. The drug grinder and feeder according to claim 5, characterized in that: The first extrusion table is provided with a connector extending in a direction away from the cylinder, and a channel is formed in the connector. The channel is connected to the through hole and the channel can be inserted into the frustum. The cylinder is connected to the feeder assembly via the connector.
7. The drug grinder and feeder according to claim 6, characterized in that: The channel is narrowed at the middle; when the frustum extends into the channel, the frustum can abut against the narrowed opening to block the channel.
8. The drug grinder and feeder according to claim 1, characterized in that: The cylinder and / or the core rod are provided with a sliding seal. When the first end of the core rod extends into the cylinder, the sliding seal can seal the gap between the circumferential sidewall of the first end of the core rod and the inner sidewall of the cylinder.