A medicine grinding machine for internal medicine nursing

Abstract

The present invention discloses a medicine press grinder for internal medicine nursing, comprising a fixed cylinder and a threaded tube, wherein the fixed cylinder and the threaded tube are provided with a press grinding assembly, wherein the press grinding assembly comprises a press grinding plate, wherein the press grinding plate is provided in the fixed cylinder, and the outer peripheral wall of the press grinding plate contacts the inner wall of the fixed cylinder, an adjusting mechanism is provided on the bottom side of the press grinding plate, and a limiting mechanism is provided in the bottom end opening of the threaded tube. When the improved medicine press grinds tablets into powder, the operator puts the tablets into the fixed cylinder and screws the threaded tube onto the fixed cylinder, and when the device is assembled, the tablets can be initially squeezed and crushed by the cooperation of the adjusting mechanism, the press grinding plate and the limiting mechanism, and then the crushed tablet particles can be further ground by rotating the limiting mechanism through the pulverizing mechanism, so that the tablets are pressed into powder with relatively uniform particles, and the medicine pressing effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of medicine grinding presses, in particular to a medicine grinding press for internal medicine nursing. Background Art

[0002] Internal medicine nursing is an important branch of the medical nursing field. It focuses on providing comprehensive and systematic nursing services for patients with internal medicine diseases. Nurses provide holistic care to patients by using nursing knowledge, skills and experience. In the process of nursing, nurses need to follow the doctor's orders to implement various treatment measures, such as medication, infusion, oxygen inhalation, etc., to ensure the safety and effectiveness of the treatment. Among them, tablets are one of the many drugs. According to their usage requirements, some drugs need to use a drug grinder to make the tablets into powder for easy use or taking.

[0003] In the existing medicine press, the nursing staff generally puts the tablets into the container of the medicine press, and then crushes the internal tablets through the threaded connection between the container and the cover to complete the tablet pressing operation at one time. After the tablet pressing is completed, it is easy for the drug particles to be of different sizes. When the drug is taken out of the container, due to the depth of the container, a certain amount of drug powder is easy to adhere to the inner wall of the container and is difficult to take out, and it is troublesome to take out the drug. Summary of the invention

[0004] The object of the present invention is to provide a medicine grinding machine for internal medicine nursing, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a drug grinder for internal medicine nursing, comprising a fixed cylinder and a threaded tube, wherein a grinding assembly is provided in the fixed cylinder and the threaded tube, wherein the grinding assembly comprises a grinding plate, wherein the grinding plate is provided in the fixed cylinder, and the outer peripheral wall of the grinding plate is in contact with the inner wall of the fixed cylinder, an adjusting mechanism is provided on the bottom side of the grinding plate, a limiting mechanism is provided in the bottom end opening of the threaded tube, a discharging mechanism is provided on the bottom side of the fixed cylinder, and a crushing mechanism is provided in the top end opening of the threaded tube.

[0006] Preferably, the adjustment mechanism comprises a plurality of first springs, which are arranged in a circumferential row on the bottom side of the grinding plate, and both ends of each first spring are respectively fixedly connected to the grinding plate and the inner wall of the fixed cylinder.

[0007] Preferably, two guide rods are relatively fixedly installed at the center position of the bottom side of the grinding plate, and each guide rod slides through the wall of the fixed cylinder.

[0008] Preferably, the limiting mechanism includes a positioning plate, which is rotatably installed at the middle position in the threaded tube through a bearing, a grinding rod is fixedly installed at the center position of the bottom side of the positioning plate, a square rod is fixedly installed at the center position of the top side of the positioning plate, and the top end of the square rod extends to the outside of the top end opening of the threaded tube.

[0009] Preferably, a plurality of balls are arranged in a circle on both upper and lower sides of the positioning plate, and one end of each ball is inserted into the wall of the threaded tube and rotatably connected to the wall of the threaded tube, and the outer arc wall of the other end of the ball contacts the corresponding outer ring edge of the positioning plate.

[0010] Preferably, the discharge mechanism comprises a plurality of one-way valves, and the plurality of one-way valves are fixedly connected through the bottom wall of the fixed cylinder, and the plurality of one-way valves are arranged in a circular pattern between the two guide rods and the plurality of first springs.

[0011] Preferably, a plurality of connecting holes are provided in a circular array on the bottom side of the fixed cylinder, and each connecting hole is located between two corresponding one-way valves. A sealing ring is fixedly installed in the grinding plate, and the outer ring wall of the sealing ring contacts the inner wall of the fixed cylinder.

[0012] Preferably, a connecting plate is fixedly installed at the bottom ends of the two guide rods, a limiting ring is provided on the outer peripheral sliding sleeve of the guide rod, and the limiting ring is located on the bottom side of the fixed cylinder, a second spring is provided between the limiting ring and the connecting plate, and the two ends of the second spring are respectively fixedly connected to the connecting plate and the corresponding limiting ring.

[0013] Preferably, the pulverizing mechanism comprises a mesh plate, which is fixedly mounted on the top of the square rod, and the cross-section of the top plate wall of the mesh plate is triangular in shape, and the outer peripheral wall of the mesh plate is coplanar with the outer peripheral wall of the square rod.

[0014] Preferably, the outer peripheral sides of the square rod and the grid plate are jointly sleeved with a sleeve, and the outer peripheral walls of the square rod and the outer peripheral walls of the grid plate are in contact with the inner wall of the sleeve, the top side of the sleeve is an arc-shaped setting with the outer ring edge recessed toward the center position, and a plurality of third springs are relatively provided on the outer peripheral side of the square rod, and both ends of each third spring are fixedly connected to the positioning plate and the sleeve.

[0015] The present invention has at least the following beneficial effects: 1. When the improved drug press grinder grinds tablets into powder, the operator puts the tablets into the fixed barrel and screws the threaded tube onto the fixed barrel. When the device is assembled, the tablets can be initially squeezed and crushed by the cooperation of the adjustment mechanism, the grinding plate and the limit mechanism. Then, the crushed tablet particles can be further ground by rotating the limit mechanism through the crushing mechanism, so that the tablets are pressed into powder with relatively uniform particles, and the drug pressing effect is good. 2. When the improved drug press grinds tablets into particles, the operator puts the tablets into the fixed cylinder and screws the other end of the threaded tube onto the fixed cylinder. When the device is assembled, the crushing mechanism, the adjusting mechanism and the pressing plate cooperate with each other to crush most of the tablets into granular drugs of relatively uniform size. The drugs can be made into drug powder or drug particles as needed, thereby expanding the scope of application of the device.

[0016] 3. After the tablets are pressed into granular drugs or drug powder, the operator unscrews the threaded tube from the fixed barrel, and then the operator pushes the grinding plate out of the fixed barrel through the cooperation of the discharge mechanism and the adjustment mechanism, so that the drugs on the inner wall of the fixed barrel can be scraped off and pushed out of the fixed barrel. The operator only needs to wipe the grinding plate and the limiting mechanism to pour the drugs into a specific container, which facilitates the drug taking operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0018] Figure 1 It is an overall schematic diagram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the fixing cylinder of the present invention; Figure 3 It is a front view of the internal structure of the threaded pipe of the present invention; Figure 4 It is a schematic diagram of the internal structure of the threaded pipe of the present invention; Figure 5 It is a schematic diagram of the overall structure of the positioning plate, the grinding rod, the square rod and the sleeve of the present invention; Figure 6 It is a schematic diagram of the overall structure of the grid plate of the present invention; Figure 7 For the present invention Figure 1 Schematic diagram of the overall structure when the middle fixed cylinder is inverted.

[0019] In the figure: 1. fixed cylinder; 2. threaded tube; 3. grinding assembly; 31. grinding plate; 32. adjusting mechanism; 321. first spring; 322. guide rod; 33. limiting mechanism; 331. positioning plate; 332. grinding rod; 333. square rod; 334. ball; 4. discharging mechanism; 41. one-way valve; 42. connecting hole; 43. sealing ring; 44. connecting plate; 45. limiting ring; 46. second spring; 5. crushing mechanism; 51. grid plate; 52. sleeve; 53. third spring. DETAILED DESCRIPTION

[0020] In order to make the technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The present invention provides a technical solution: referring to Figure 1 - Figure 7 The present invention discloses a medicine grinder for internal medicine nursing, comprising a fixed cylinder 1 and a threaded tube 2. A grinding assembly 3 is provided in the fixed cylinder 1 and the threaded tube 2. The grinding assembly 3 comprises a grinding plate 31. The grinding plate 31 is provided in the fixed cylinder 1, and the outer peripheral wall of the grinding plate 31 contacts the inner wall of the fixed cylinder 1. An adjusting mechanism 32 is provided on the bottom side of the grinding plate 31. A limiting mechanism 33 is provided in the bottom end opening of the threaded tube 2. A discharging mechanism 4 is provided on the bottom side of the fixed cylinder 1. A crushing mechanism 5 is provided in the top end opening of the threaded tube 2.

[0022] In this embodiment, when the improved drug press grinder grinds the tablet into powder, the operator puts the tablet into the fixed barrel 1 and screws the threaded tube 2 onto the fixed barrel 1, and then directly inserts the limiting mechanism 33 into the fixed barrel 1. Due to the mutual interference between the tablet and the limiting mechanism 33 and the mutual interference between the tablet and the grinding plate 31, the grinding plate 31 can be pushed into the fixed barrel 1 as the threaded tube 2 is screwed, so that the thrust of the adjusting mechanism 32 on the grinding plate 31 gradually increases. At this time, the grinding plate 31 and the limiting mechanism 33 press the tablet from both sides. The tablets are squeezed and clamped, and as the fixing tube 1 is inserted deeper into the threaded tube 2, the squeezing and clamping force on the tablets gradually increases, so that when the device is assembled, the tablets are initially squeezed and crushed by the cooperation of the adjusting mechanism 32, the grinding plate 31 and the limiting mechanism 33, and then the grinding mechanism 5 rotates the limiting mechanism 33, and the crushed tablet particles are further ground by the reverse rotation of the grinding plate 31 and the limiting mechanism 33, until the crushed tablet particles are ground into powder with relatively uniform particle size; When the improved drug mill grinds tablets into particles, the operator puts the tablets into the fixed barrel 1 and screws the other end of the threaded tube 2 onto the fixed barrel 1, and then directly inserts the crushing mechanism 5 into the fixed barrel 1. Due to the mutual interference between the tablets and the crushing mechanism 5 and the mutual interference between the tablets and the grinding plate 31, the grinding plate 31 can be pushed into the fixed barrel 1 as the threaded tube 2 is twisted, so that the thrust of the adjusting mechanism 32 on the grinding plate 31 gradually increases. At this time, the grinding plate 31 and the crushing mechanism 5 squeeze and clamp the tablet from both sides of the tablet, and as the fixed barrel 1 is inserted deeper into the threaded tube 2, the squeezing and clamping force on the tablet gradually increases, and finally the tablet is crushed into drug particles with relatively uniform particle size. After the tablets are formed into drug particles, the drug particles will no longer be squeezed and clamped due to the mutual interference between the crushing mechanism 5 and the grinding plate 31.

[0023] After the tablets are pressed into granular drugs or drug powder, the operator unscrews the threaded tube 2 from the fixed cylinder 1, and the adjusting mechanism 32 automatically pushes the pressing plate 31 upward slowly to scrape off most of the drugs attached to the inner wall of the fixed cylinder 1. Then the operator moves the device to pour the drug powder or drug granules in the fixed cylinder 1 into a specific container. Then the operator pushes part of the pressing plate 31 out of the fixed cylinder 1 through the discharging mechanism 4 to scrape off the remaining drugs on the inner wall of the fixed cylinder 1, and then wipes the pressing plate 31 and the limiting mechanism 33 to sweep the remaining drug powder on the device into the container, or the drug particles on the pulverizing mechanism 5 are shaken off and dropped into the container through the collision between the pulverizing mechanism 5 and the container.

[0024] In a further preferred embodiment of the present invention, Figure 2 As shown, the adjustment mechanism 32 includes a plurality of first springs 321, which are arranged in a circular pattern on the bottom side of the grinding plate 31, and both ends of each first spring 321 are fixedly connected to the grinding plate 31 and the inner wall of the fixed cylinder 1 respectively; In this embodiment, during the movement of the above-mentioned grinding plate 31 into the fixed cylinder 1, the grinding plate 31 and the inner wall of the fixed cylinder 1 can be synchronously compressed by the two sides of the first spring 321 during the movement of the grinding plate 31, so that the thrust of the first spring 321 on the grinding plate 31 gradually increases, and finally the clamping and squeezing force of the grinding plate 31 on the tablet gradually increases. The squeezing and clamping force exerted on the tablet can be adjusted by adjusting the position between the fixed cylinder 1 and the threaded tube 2.

[0025] In a further preferred embodiment of the present invention, Figure 2 As shown, two guide rods 322 are relatively fixedly installed at the center position of the bottom side of the grinding plate 31, and each guide rod 322 slides through the wall of the fixed cylinder 1; In this embodiment, during the rotation of the above-mentioned limiting mechanism 33 or the movement of the grinding plate 31, there is a mutual conflict between the guide rod 322 and the fixed cylinder 1, and the grinding plate 31 will only move in a linear trajectory inside the fixed cylinder 1, and the grinding plate 31 will not move together with the limiting mechanism 33 due to the friction between the medicine and the grinding plate 31.

[0026] In a further preferred embodiment of the present invention, Figure 3 and Figure 5 As shown, the limiting mechanism 33 includes a positioning plate 331, which is rotatably mounted at the middle position of the threaded tube 2 through a bearing, a grinding rod 332 is fixedly mounted at the center position of the bottom side of the positioning plate 331, and a square rod 333 is fixedly mounted at the center position of the top side of the positioning plate 331, and the top end of the square rod 333 extends to the outside of the top end opening of the threaded tube 2; In this embodiment, when further grinding the broken tablets, the operator rotates the grinding rod through the square rod 333 and the positioning plate 331, so that the grinding rod 332 and the grinding plate 31 produce relative displacement, thereby completing the further grinding of the broken tablets. As the tablet particles shrink, the first spring 321 synchronously pushes the grinding plate 31 in the direction of the grinding rod 332, and automatically and adaptively adjusts the position of the grinding plate 31. The operator does not need to perform other operations, and the device is convenient to use.

[0027] In a further preferred embodiment of the present invention, Figure 3 and Figure 4 As shown, a plurality of balls 334 are arranged in a circle on both upper and lower sides of the positioning plate 331, and one end of each ball 334 is inserted into the tube wall of the threaded tube 2 and rotatably connected to the tube wall of the threaded tube 2, and the outer arc wall of the other end of the ball 334 contacts the corresponding outer ring edge of the positioning plate 331; In this embodiment, during the mutual interference between the above-mentioned grinding rod 332 and the tablet, due to the mutual interference between the ball 334 and the outer ring edge of the positioning plate 331, the positioning plate 331 is stably located at the middle position in the threaded tube 2, and the square rod 333 and the grinding rod 332 are stably located at specific positions in the threaded tube 2. The rotation of the ball 334 and the bearing can greatly offset the friction between the positioning plate 331 and the threaded tube 2, so that the operator can easily rotate the positioning plate 331 by rotating the sleeve 52.

[0028] In a further preferred embodiment of the present invention, Figure 2 and Figure 7 As shown, the discharge mechanism 4 includes a plurality of one-way valves 41, which are fixedly connected through the bottom wall of the fixed cylinder 1, and the plurality of one-way valves 41 are arranged in a circular pattern between the two guide rods 322 and the plurality of first springs 321; In this embodiment, when the grinding plate 31 moves into the fixed cylinder 1 , the gas in the fixed cylinder 1 is quickly discharged from the one-way valve 41 , thereby preventing the formation of a high-pressure chamber in the fixed cylinder 1 that affects the movement of the grinding plate 31 in the fixed cylinder 1 .

[0029] In a further preferred embodiment of the present invention, Figure 2 and Figure 7 As shown, a plurality of connecting holes 42 are provided in a circumferential array on the bottom side of the fixed cylinder 1, and each connecting hole 42 is located between two corresponding one-way valves 41, and a sealing ring 43 is fixedly installed in the grinding plate 31, and the outer ring wall of the sealing ring 43 contacts the inner wall of the fixed cylinder 1; In this embodiment, when the threaded tube 2 is quickly unscrewed from the fixed cylinder 1, due to the push of the first spring 321 on the grinding plate 31, the grinding plate 31 simultaneously drives the powder to move upward and scrapes the powder on the inner wall of the fixed cylinder 1. At the same time, due to the obstruction of the one-way valve 41 and the connecting hole 42, only a very small amount of external gas will flow into the fixed cylinder 1 at a uniform speed. A negative pressure chamber is formed in the fixed cylinder 1 to continuously apply a downward pulling force to the grinding plate 31, thereby offsetting most of the thrust of the first spring 321 on the grinding plate 31. The grinding plate 31 is located in the fixed cylinder 1 and moves slowly upward, avoiding the grinding plate 31 moving too fast, which causes the medicine to generate a large inertia force, thereby causing the medicine to slip out of the fixed cylinder 1 and generate unnecessary losses.

[0030] In a further preferred embodiment of the present invention, Figure 7 As shown, the bottom ends of the two guide rods 322 are fixedly provided with a connecting plate 44, the outer peripheral side of the guide rod 322 is slidably sleeved with a limiting ring 45, and the limiting ring 45 is located at the bottom side of the fixed cylinder 1, and a second spring 46 is provided between the limiting ring 45 and the connecting plate 44, and the two ends of the second spring 46 are respectively fixedly connected to the connecting plate 44 and the corresponding limiting ring 45; In this embodiment, during the movement of the above-mentioned grinding plate 31, the synchronous guide rod 322 can drive the connecting plate 44 to move upward synchronously. When the limiting ring 45 and the fixed cylinder 1 are in contact with each other, the limiting ring 45 cooperates with the connecting plate 44 to gradually compress the second spring 46, so that the connecting plate 44 is subjected to a downward and gradually increasing thrust to offset the thrust of the first spring 321 on the grinding plate 31, and at the same time, the negative pressure chamber in the fixed cylinder 1 gradually shrinks until it disappears. When the thrust of the second spring 46 on the connecting plate 44 is equal to the thrust of the first spring 321 on the grinding plate 31, the grinding plate 31 stops moving upward, so that the grinding plate 31 will not automatically move out of the fixed cylinder 1, causing the medicine to slip out of the fixed cylinder 1 and generate unnecessary loss; When the grinding plate 31 is pushed out of the fixed tube 1, the operator pushes the connecting plate 44, and the grinding plate 31 can be pushed out of the fixed tube 1 through the guide rod 322. When the second spring 46 is compressed to the limit, part of the grinding plate 31 extends out of the fixed tube 1. At this time, the operator can easily sweep off the residual medicine attached to the grinding plate 31.

[0031] In a further preferred embodiment of the present invention, Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, the crushing mechanism 5 includes a mesh plate 51, which is fixedly mounted on the top of the square rod 333, and the cross-section of the top plate wall of the mesh plate 51 is triangular, and the outer peripheral wall of the mesh plate 51 is coplanar with the outer peripheral wall of the square rod 333; In this embodiment, when the other end of the threaded tube is screwed onto the fixed tube 1, the grid plate 51 can be simultaneously inserted into the fixed tube 1 through the square rod 333, and as the fixed tube 1 is inserted into the threaded tube 2, the grid plate 51 and the grinding plate 31 squeeze and clamp the tablet from both sides of the tablet, and as the grinding plate 31 gradually retracts into the fixed tube 1, the squeezing and clamping force on the tablet gradually increases, and finally the tablet is crushed, and at the same time, the drug particles of appropriate size directly slide into the holes of the grid plate 51. At this time, the grid plate 51 and the grinding plate 31 conflict with each other, and the drug particles sliding into the holes of the grid plate 51 will no longer be squeezed and clamped, and the operator does not need to perform other operations, which facilitates the use of the device.

[0032] In a further preferred embodiment of the present invention, Figure 1 , Figure 3 and Figure 5 As shown, the outer peripheral sides of the square rod 333 and the grid plate 51 are jointly sleeved with a sleeve 52, and the outer peripheral walls of the square rod 333 and the outer peripheral walls of the grid plate 51 are in contact with the inner wall of the sleeve 52, and the top side of the sleeve 52 is an arc-shaped setting with the outer ring edge concave toward the center position, and a plurality of third springs 53 are relatively arranged on the outer peripheral side of the square rod 333, and both ends of each third spring 53 are fixedly connected to the positioning plate 331 and the sleeve 52; In this embodiment, when the grid plate 51 is inserted into the fixed tube 1, the tablets are squeezed to the bottom of the grid plate 51 along the curved surface of the sleeve 52 due to the mutual interference between the tablets and the curved surface of the sleeve 52, and the position of the tablets is automatically adjusted without the operator having to perform other operations, thereby facilitating the use of the device.

[0033] Working principle: When the improved drug press grinds the tablets into powder, the operator first inserts the tablets into the fixed barrel 1, and then the operator screws the threaded tube 2 onto the outer peripheral side of the fixed barrel 1, and as the fixed barrel 1 is inserted into the threaded tube 2, the pressing rod 332 is gradually inserted into the fixed barrel 1, and as the pressing rod 332 slides along the inner wall of the fixed barrel 1, due to the mutual interference between the pressing rod 332 and the tablets and between the tablets and the pressing plate 31, the pressing rod 332 inserted into the fixed barrel 1 pushes the pressing plate 31 into the fixed barrel 1, and as the distance between the pressing plate 31 and the inner wall of the fixed barrel 1 is gradually shortened, the pressing plate 31 synchronously compresses the first spring 321, and as the first spring 321 is compressed, the thrust of the first spring 321 on the pressing plate 31 is gradually increased, thereby gradually increasing the clamping and squeezing force of the pressing plate 31 and the pressing rod 332 on the tablets; It should be noted that, during the process of the grinding plate 31 compressing the first spring 321, the gas in the fixed cylinder 1 is quickly discharged from the fixed cylinder 1 through the connecting hole 42 and the one-way valve 41, and no high-pressure chamber is generated in the fixed cylinder 1 to affect the movement of the grinding plate 31 in the fixed cylinder 1; The tablets are squeezed and clamped by the grinding plate 31 and the grinding rod 332 to crush the tablets. Then, the operator rotates the sleeve 52. Due to the mutual interference between the square rod 333 and the inner wall of the sleeve 52, the rotating sleeve 52 synchronously drives the square rod 333 positioning plate 331 and the grinding rod 332 to rotate synchronously. The rotating grinding rod 332 cooperates with the grinding plate 31 and the grinding rod 332 to clamp the tablets to further grind the tablets, thereby grinding the broken tablets into powder with uniform particles. It should be noted that, due to the mutual interference between the ball 334 and the outer ring edge of the positioning plate 331, the positioning plate 331 is stably located at the middle position in the threaded tube 2, and the rotation of the ball 334 with the bearing can greatly offset the friction between the positioning plate 331 and the threaded tube 2, so that the operator can easily rotate the positioning plate 331 by rotating the sleeve 52; After the tablet grinding is completed, the operator rotates the threaded tube 2 in the opposite direction to quickly unscrew the threaded tube 2 from the fixed tube 1. At the same time, due to the push of the first spring 321 on the grinding plate 31, the grinding plate 31 simultaneously drives the powder to move upward and scrapes the powder on the inner wall of the fixed tube 1. During the upward movement of the above-mentioned grinding plate 31 in the fixed cylinder 1, due to the obstruction of the one-way valve 41 and the connecting hole 42, only a very small amount of external gas will flow into the fixed cylinder 1 at a uniform speed, and a negative pressure chamber is formed in the fixed cylinder 1 to continuously exert a downward pulling force on the grinding plate 31, thereby offsetting most of the thrust of the first spring 321 on the grinding plate 31. The grinding plate 31 is located in the fixed cylinder 1 and moves slowly upward, and pulls the connecting plate 44 upward synchronously through the guide rod 322. When the limiting ring 45 contacts the fixed cylinder 1, the limiting ring 45 cooperates with the connecting plate 44 to gradually compress the second spring 46, so that the connecting plate 44 is subjected to a downward and gradually increasing thrust to offset the thrust of the first spring 321 on the grinding plate 31, and at the same time fixes The negative pressure chamber in the barrel 1 gradually shrinks until it disappears. When the thrust of the second spring 46 on the connecting plate 44 is equal to the thrust of the first spring 321 on the grinding plate 31, the grinding plate 31 stops moving upward, and then the operator can move the fixed barrel 1 to guide the powder inside into a specific container. Then the operator pushes the connecting plate 44 and can push the grinding plate 31 out of the fixed barrel 1 through the guide rod 322, so that the remaining powder on the inner wall of the opening of the fixed barrel 1 can be scraped off and pushed out of the fixed barrel 1, and the top side of the grinding plate 31 extends out of the opening of the fixed barrel 1. The operator can scrape off the powder attached to the grinding plate 31 by wiping the top side of the grinding plate 31, and then the operator can scrape off the powder on the bottom side of the grinding rod 332 to complete the collection of the powder. When the improved drug press grinds the tablet into particles, the operator places the tablet in the fixed barrel 1, then screws the threaded tube 2 onto the fixed barrel 1, and inserts the sleeve 52 into the fixed barrel 1. When the tablet and the arc surface of the sleeve 52 collide with each other, the tablet is squeezed to the bottom of the grid plate 51 along the arc surface of the sleeve 52, and then the end of the sleeve 52 collide with the grinding plate 31. When the end of the sleeve 52 collide with the grinding plate 31, due to the mutual conflict between the sleeve 52 and the grinding plate 31 and the push of the first spring 321 on the grinding plate 31, the sleeve 52 slides along the square rod 333 and presses The third spring 53 is compressed, and at the same time, the distance between the grid plate 51 and the grinding plate 31 is gradually reduced. At this time, due to the mutual interference between the tablet and the grinding plate 31 and the mutual interference between the tablet and the grid plate 51, the operator pushes the grinding plate 31 into the fixed cylinder 1 while twisting the threaded tube 2, so that the thrust of the first spring 321 on the grinding plate 31 is gradually increased, and then the squeezing and clamping force of the grid plate 51 and the grinding plate 31 on the tablet is gradually increased, and the tablet is broken and shattered, and the broken tablet particles slide into the holes of the grid plate 51 for storage, and finally the tablet is ground into larger particles; After the tablets are crushed, the operator unscrews the threaded tube 2 from the fixed tube 1, and then moves the threaded tube 2 to move the opening of the sleeve 52 to the opening of the specific container. Then, the operator holds the threaded tube 2 and pushes the sleeve 52 into the threaded tube 2 with fingers, so that the mesh plate 51 extends out of the sleeve 52. Through the collision between the mesh plate 51 and the container, the powder particles in the mesh plate 51 are vibrated out of the mesh plate 51, and the powder particles directly fall into the container. Then, according to the above, the operator pushes the grinding plate 31 out of the fixed tube 1, and sweeps the residual powder on the grinding plate 31 from the grinding plate 31 into the container, thereby completing the collection of the granular tablets. According to the above repetition, the operator can continuously perform the tablet grinding process. It should be noted that, after the threaded tube 2 is unscrewed from the fixing tube 1 , the sleeve 52 automatically slides and returns to its original position along the square rod 333 due to the push of the third spring 53 on the sleeve 52 .

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A medicine grinding machine for internal medicine nursing, comprising a fixed cylinder (1) and a threaded tube (2), characterized in that: The fixed cylinder (1) and the threaded tube (2) are provided with a grinding assembly (3) together. The grinding assembly (3) comprises a grinding plate (31). The grinding plate (31) is provided in the fixed cylinder (1), and the outer peripheral wall of the grinding plate (31) is in contact with the inner wall of the fixed cylinder (1). An adjusting mechanism (32) is provided on the bottom side of the grinding plate (31). A limiting mechanism (33) is provided in the bottom opening of the threaded tube (2). A discharging mechanism (4) is provided on the bottom side of the fixed cylinder (1), and a crushing mechanism (5) is provided in the top opening of the threaded tube (2).

2. A medicine grinding machine for internal medicine nursing according to claim 1, characterized in that: The adjustment mechanism (32) comprises a plurality of first springs (321), the plurality of first springs (321) being arranged in a circular arrangement on the bottom side of the grinding plate (31), and the two ends of each first spring (321) being respectively fixedly connected to the grinding plate (31) and the inner wall of the fixed cylinder (1).

3. A medicine grinding machine for internal medicine nursing according to claim 2, characterized in that: Two guide rods (322) are relatively fixedly mounted at the center position of the bottom side of the grinding plate (31), and each guide rod (322) slides through the wall of the fixed cylinder (1).

4. A medicine grinding machine for internal medicine nursing according to claim 3, characterized in that: The limiting mechanism (33) comprises a positioning plate (331), the positioning plate (331) being rotatably mounted at a middle position in the threaded tube (2) via a bearing, a grinding rod (332) being fixedly mounted at the center position of the bottom side of the positioning plate (331), and a square rod (333) being fixedly mounted at the center position of the top side of the positioning plate (331), and the top end of the square rod (333) extending outside the top end opening of the threaded tube (2).

5. A medicine grinding machine for internal medicine nursing according to claim 4, characterized in that: A plurality of balls (334) are arranged in a circular pattern on both upper and lower sides of the positioning plate (331), and one end of each ball (334) is inserted into the tube wall of the threaded tube (2) and is rotatably connected to the tube wall of the threaded tube (2), and the outer arc wall of the other end of the ball (334) contacts the corresponding outer ring edge of the positioning plate (331).

6. A medicine grinding machine for internal medicine nursing according to claim 5, characterized in that: The discharge mechanism (4) comprises a plurality of one-way valves (41), the plurality of one-way valves (41) are fixedly inserted through the bottom wall of the fixed cylinder (1), and the plurality of one-way valves (41) are arranged in a circular arrangement between the two guide rods (322) and the plurality of first springs (321).

7. A medicine grinding machine for internal medicine nursing according to claim 6, characterized in that: The bottom side of the fixed cylinder (1) is provided with a plurality of connection holes (42) in a circumferential array, and each connection hole (42) is located between two corresponding one-way valves (41). A sealing ring (43) is fixedly installed in the grinding plate (31), and the outer ring wall of the sealing ring (43) is in contact with the inner wall of the fixed cylinder (1).

8. The medicine grinding machine for internal medicine nursing according to claim 7, characterized in that: A connecting plate (44) is fixedly mounted on the bottom ends of the two guide rods (322); a limiting ring (45) is provided on the sliding sleeve on the outer circumference of the guide rod (322); the limiting ring (45) is located on the bottom side of the fixed cylinder (1); a second spring (46) is provided between the limiting ring (45) and the connecting plate (44); and two ends of the second spring (46) are respectively fixedly connected to the connecting plate (44) and the corresponding limiting ring (45).

9. The medicine grinding machine for internal medicine nursing according to claim 8, characterized in that: The pulverizing mechanism (5) comprises a mesh plate (51), the mesh plate (51) being fixedly mounted on the top end of the square rod (333), and the cross-section of the top plate wall of the mesh plate (51) being in the shape of a triangle, and the outer peripheral wall of the mesh plate (51) being coplanar with the outer peripheral wall of the square rod (333).

10. A medicine grinding machine for internal medicine nursing according to claim 9, characterized in that: The outer peripheral sides of the square rod (333) and the grid plate (51) are jointly sleeved with a sleeve (52), and the outer peripheral walls of the square rod (333) and the grid plate (51) are in contact with the inner wall of the sleeve (52), the top side of the sleeve (52) is an arc-shaped arrangement with the outer ring edge recessed toward the center position, a plurality of third springs (53) are arranged opposite to the outer peripheral side of the square rod (333), and both ends of each third spring (53) are fixedly connected to the positioning plate (331) and the sleeve (52).

Images