Pediatric dispensing and grinding device

Abstract

The present application relates to the technical field of medicine grinding, in particular to a pediatric medicine grinding device, which comprises a grinding box, a blocking piece is transversely inserted into the lateral surface of the grinding box, a central shaft is rotationally connected in the cavity of the grinding box, a grinding wheel is sleeved on the outer side wall of the central shaft, a grinding cavity is formed between the outer side wall of the grinding wheel and the inner side wall of the grinding box, two position-symmetric sliding plates are slidably connected to the inner wall of the grinding cavity away from the blocking piece, and an exhaust plate is rotationally connected between the two sliding plates. The present application realizes the basic crushing of medicine tablets through the cooperative action of the grinding wheel and the blocking piece with adjustable spacing, the air conveying structure sprays airflow through the exhaust transverse groove to effectively clean the surface of the grinding wheel, the medicine powder is screened through the sieve plate, the substandard particles are scraped up by the pressing plate and sent back to the grinding area for secondary crushing, the airflow circulation formed in the device helps to reduce the leakage of medicine powder, thereby improving the overall grinding efficiency and hygiene level.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medicine grinding, in particular to a pediatric medicine grinding device. BACKGROUND

[0002] In the field of pediatric medicine, due to the incomplete development of swallowing function and the narrow esophagus of infants and young children, it is usually necessary to grind the tablets into fine and uniform powder and then mix with water or liquid food for feeding. At present, the common tablet grinding method mainly relies on medical staff or parents to use traditional grinding mortar and pestle for manual operation;

[0003] This traditional method not only has strong grinding skill and is difficult to master, resulting in uneven grinding effect, but also the tablets are easy to splash during grinding, causing waste and pollution of the medicine. Although some existing grinding devices try to improve the grinding efficiency through mechanical structure, there are still many limitations, such as the difficulty in collecting the powder adhered to the inner wall of the device after grinding, the inconvenience of cleaning which may lead to cross infection, and the lack of effective powder screening and recycling mechanism, which makes it difficult to ensure the uniformity of the powder particles and affects the safety of drug administration and treatment effect.

[0004] The existing pediatric tablet grinding devices in the prior art have the following problems: first, the grinding process lacks integrated powder recycling and secondary crushing mechanism, resulting in incomplete grinding of some large particles that need to be manually operated repeatedly, which is low in efficiency; second, the surface of the grinding parts is easy to leave powder, which not only causes waste of medicine, but also causes sanitation hazards due to incomplete cleaning; third, the airflow control in the device is not good, which may cause powder dust to leak out and pollute the operating environment when cleaning the grinding wheel; fourth, the device does not have adjustable grinding gap and automatic screening structure, which makes it difficult to adapt to the particle size requirements of different medicines, and the function is single.

[0005] Therefore, there is an urgent need for a pediatric medicine grinding device that can realize efficient grinding, automatic cleaning, screening and recycling, and effective dust prevention, in order to improve the precision of medicine administration and the convenience of operation. SUMMARY

[0006] The present application relates to the technical field of medicine grinding, in particular to a pediatric medicine grinding device.

[0007] In order to achieve the above object, the present application provides the following technical scheme: a pediatric dispensing and grinding device, comprising a grinding box, a blocking piece is transversely inserted into the lateral surface of the grinding box, a central shaft is rotationally connected in the cavity of the grinding box, an abrasive wheel is sleeved on the outer side wall of the central shaft, a grinding cavity is formed between the outer side wall of the abrasive wheel and the inner side wall of the grinding box, two position-symmetric sliding plates are slidably connected to the inner wall of the grinding cavity away from the blocking piece, an exhaust plate is rotationally connected between the two sliding plates, a spring No.2 is fixed to the upper end of the sliding plate, an exhaust transverse groove is formed in the end of the exhaust plate close to the abrasive wheel, a circular arc plate is rotationally connected to the side surface of the end of the exhaust plate close to the abrasive wheel, and the circular arc plate is slidably connected to the inner wall of the grinding box;

[0008] An elastic exhaust structure is arranged between the pressing plate and the abrasive wheel, and the elastic exhaust structure is communicated with the central shaft;

[0009] A gas hole is formed between the sliding plate and the grinding box, and the gas hole can be communicated with the exhaust transverse groove, a central cylinder which is communicated with the gas hole is fixed to the outer side wall of the grinding box, a pinion ring which is coaxial with the central cylinder is rotationally connected to the outer side wall of the grinding box, and a gas conveying structure is arranged between the central cylinder and the pinion ring to convey gas into the exhaust plate.

[0010] Preferably, the gas conveying structure comprises two arc-shaped plugs which are fixed symmetrically to the inner side wall of the circular arc plate and abut against the outer wall of the central cylinder, an air inlet hole is formed in the upper end of the outer side wall of the central cylinder, a sealing sheet is fixed to the outer side wall of the end of the central cylinder away from the grinding box and abuts against the notch of the pinion ring, a sealing plug is slidably connected to the side surface of the sealing sheet and can be inserted between the central cylinder and the pinion ring, a T-shaped sliding plate is fixed to the end of the sealing plug away from the grinding box, two positioning plates are slidably connected to the side surface of the T-shaped sliding plate, and the positioning plates are fixed to the grinding box.

[0011] Preferably, the side of the sealing sheet away from the grinding box is connected with an air suction pipe which is located on the side of the sealing plug away from the air inlet hole, an outer connecting pipe is fixed to the side surface of the air suction pipe, a rotating cylinder which is rotationally connected with the central shaft is mounted to one end of the outer connecting pipe, a sliding block is slidably connected to the side of the outer connecting pipe close to the central cylinder and blocks the cavity of the outer connecting pipe, through grooves which can be communicated with the outer connecting pipe are formed in both ends of the sliding block, a positioning frame is fixed to the end of the outer connecting pipe away from the central cylinder, two spring No.3s are fixed between the positioning frame and the sliding block, a sliding cylinder is slidably connected in the cavity of the central cylinder and can abut against the sliding block, and a spring No.1 is fixed between the sliding cylinder and the grinding box.

[0012] Preferably, the outer side wall of the grinding box is fixedly connected with a motor, and the output end of the motor is fixedly connected with the central shaft, one side of the small gear ring is engaged with a large gear ring coaxial with the central shaft, the inner side wall of the large gear ring is circumferentially and arrayedly provided with six inclined blocks one, each inclined block one is fixedly connected with a connecting rod between the inclined block one and the central shaft, the T-shaped sliding plate is fixedly connected with an inclined block two on the side close to the inclined block one, and the inclined block two can abut against the inclined block one.

[0013] Preferably, the lower end of the grinding box is fixedly connected with a sliding frame, the cavity of the sliding frame is slidingly connected with an upper pushing plate, the lower end of the upper pushing plate is fixedly connected with two springs four between the upper pushing plate and the sliding frame, the side surface of the sliding frame is fixedly connected with a positioning pipe in communication with the air suction pipe, and the other end of the positioning pipe extends into the cavity of the sliding frame.

[0014] Preferably, the cavity of the sliding frame is transversely and slidingly inserted with an outer frame, the lower end of the outer frame abuts against the upper pushing plate, the cavity of the outer frame is slidingly connected with an inner frame, the upper surface of the inner frame is provided with a sieve plate, the sieve plate abuts against and communicates with the lower slot of the grinding cavity, one end of the inner frame is fixedly connected with a piston, the piston is fixedly connected with a spring five between the piston and the inner wall of the outer frame, the side close to the positioning pipe of the outer frame is provided with a limiting slot, and the positioning pipe can be slidingly inserted into the cavity of the limiting slot.

[0015] Preferably, the elastic air exhaust structure comprises an air suction slot, the air suction slot is formed in the lower surface of the pressing plate, and the other end of the pressing plate is in communication with the central shaft, one end of the pressing plate close to the central shaft is fixedly connected with two positionally symmetrical slide rods, the outer side walls of the two slide rods are slidingly connected with a positioning piece, and the positioning piece is fixedly connected with the grinding wheel, the outer side wall of each slide rod is sleeved with a spring six, and the spring six abuts between the positioning piece and the pressing plate.

[0016] Preferably, the upper end of the grinding box is provided with a feeding port, the slot of the feeding port abuts against a cover plate, one end of the cover plate is rotatably connected with a torsional spring shaft, the side close to the blocking piece of the grinding box is fixedly connected with an insertion block, the upper surface of the insertion block is slidingly connected with two insertion rods, and the insertion rods can be inserted into the upper end of the blocking piece, and the outer side wall of the grinding box close to the large gear ring is provided with a protective shell.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] The core grinding operation is performed by rotating the center shaft and the grinding wheel driven by the motor, and the medicine is pressed to the replaceable blocking piece by the pressing plate to improve the grinding pressure and uniformity, so that the medicine is fully crushed; through the gas conveying structure, external gas is conveyed to the exhaust transverse groove through the center tube and the air hole to form a high-speed airflow jet to the surface of the grinding wheel, effectively removing the attached medicine powder, solving the pollution and waste problems caused by the residual grinding of the traditional device, and the removed medicine powder is collected by the arc plate and scraped back by the pressing plate during the resetting process, realizing the collection of the medicine powder; the replaceable sieve plate is matched with the gas conveying structure and the elastic exhaust structure, which can screen the medicine powder and send the coarse particles back to the grinding chamber for secondary crushing by the scraping of the pressing plate, ensuring the uniformity of the fineness of the medicine powder; at the same time, the cooperation of the gas conveying structure and the elastic exhaust structure makes the airflow in the device circulate, effectively preventing the dust of the medicine powder from being discharged outside. BRIEF DESCRIPTION OF DRAWINGS

[0019] The application will be further explained in conjunction with the drawings and examples:

[0020] Figure 1 It is a schematic diagram of the overall structure of the application;

[0021] Figure 2 It is a schematic diagram of the internal structure of the grinding box of the application;

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the grinding box of the application;

[0023] Figure 4 It is an enlarged view of A in the application; Figure 3

[0024] Figure 5 It is an enlarged view of B in the application; Figure 3

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of the small tooth ring of the application;

[0026] Figure 7 It is an enlarged view of C in the application; Figure 6

[0027] Figure 8 It is a schematic diagram of the cross-sectional structure of the center tube of the application;

[0028] Figure 9 It is an enlarged view of D in the application; Figure 8

[0029] Figure 10 It is a schematic diagram of the cross-sectional structure of the center shaft of the application;

[0030] Figure 11 It is a schematic diagram of the cross-sectional structure of the motor of the application;​​​​

[0031] Figure 12 is a partial structure schematic view of the protective shell of the present application; Figure 10 is an enlarged view of E in

[0032] Figure 13 is a partial structure schematic view of the protective shell of the present application; Figure 2 is an enlarged view of F in

[0033] Figure 14 is a schematic view of the internal structure of the protective shell of the present application;

[0034] Figure 15 is a partial structure schematic view of the protective shell of the present application;

[0035] BRIEF DESCRIPTION OF THE DRAWINGS

[0036] 1 grinding box; 2 grinding wheel; 3 arc plate; 4 exhaust plate; 5 exhaust transverse groove; 6 grinding cavity; 7 center cylinder; 8 small tooth ring; 9 arc-shaped plug; 10 sealing piece; 11 air inlet hole; 12 plugging plug; 13 spring one; 14 sliding cylinder; 15 large tooth ring; 16 positioning plate; 17 T-shaped slide plate; 18 inclined block one; 19 inclined block two; 20 connecting rod; 21 center shaft; 22 slide plate; 23 spring two; 24 air hole; 25 air suction pipe; 26 positioning pipe; 27 external connecting pipe; 28 rotating cylinder; 29 sliding block; 30 through groove; 31 positioning frame; 32 spring three; 34 protective shell; 36 sliding frame; 37 upward pushing plate; 38 spring four; 39 outer frame; 40 inner frame; 41 piston; 42 spring five; 43 sieve plate; 45 limiting groove; 46 cover plate; 47 torsional spring shaft; 48 plugging piece; 49 insertion rod; 50 pressing plate; 51 air suction groove; 52 positioning piece; 53 sliding rod; 54 spring six; 55 motor; 56 insertion block. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0038] Please refer to Figures 1-15The application provides a technical scheme: a pediatric medicine dispensing and grinding device, which comprises a grinding box 1, a blocking piece 48 is transversely inserted into the lateral surface of the grinding box 1, a central shaft 21 is rotationally connected in the cavity of the grinding box 1, a grinding wheel 2 is sleeved on the outer side wall of the central shaft 21, a grinding cavity 6 is formed between the outer side wall of the grinding wheel 2 and the inner side wall of the grinding box 1, two position-symmetrical sliding plates 22 are slidably connected to the inner wall of the grinding cavity 6 away from the blocking piece 48, an exhaust plate 4 is rotationally connected between the two sliding plates 22, a spring 23 is fixed to the upper end of the sliding plate 22, an exhaust transverse groove 5 is formed in the end of the exhaust plate 4 close to the grinding wheel 2, a circular arc plate 3 is rotationally connected to the side surface of the end of the exhaust plate 4 close to the grinding wheel 2, and the circular arc plate 3 is slidably connected to the inner wall of the grinding box 1.

[0039] The outer side wall of the grinding wheel 2 is slidably connected with a pressing plate 50, an elastic exhaust structure is arranged between the pressing plate 50 and the grinding wheel 2, and the elastic exhaust structure is communicated with the central shaft 21.

[0040] The sliding plate 22 and the grinding box 1 are jointly provided with an air hole 24, the air hole 24 can be communicated with the exhaust transverse groove 5, a central cylinder 7 is fixed to the outer side wall of the grinding box 1 and communicated with the air hole 24, a small tooth ring 8 is rotationally connected to the outer side wall of the grinding box 1 and coaxial with the central cylinder 7, and a gas conveying structure is arranged between the central cylinder 7 and the small tooth ring 8, so that the gas can be conveyed into the exhaust plate 4.

[0041] Specifically, the exhaust transverse groove 5 can blow the airflow to clean the surface of the grinding wheel 2 through the gas conveying structure, and most of the blown powder will fall on the surface of the circular arc plate 3. The pressing plate 50 can rotate with the grinding wheel 2. Referring to FIG. 3, the grinding wheel 2 rotates counterclockwise. In the process of rotating the grinding wheel 2 to drive the exhaust transverse groove 5, the grinding wheel 2 will grind the medicine between the blocking piece 48, and the blocking piece 48 can be replaced to change the distance between the blocking piece 48 and the grinding wheel 2, so as to grind the medicine powder with different particle sizes. In the process of rotating the pressing plate 50 with the grinding wheel 2, when the pressing plate 50 contacts with the exhaust plate 4, the pressing plate 50 will first push the exhaust plate 4 to lift upward, so that the exhaust plate 4 and the sliding plate 22 are lifted together. At this time, the holes of the air holes 24 are out of position, so that the gas conveying structure cannot normally convey gas. At this time, the exhaust plate 4 is lifted to the circular arc plate 3, which will slide on the inner wall of the grinding box 1. When the exhaust plate 4 moves to the position where it cannot move upward, the exhaust plate 4 is at the maximum inclination angle. At this time, the pressing plate 50 continues to move to trigger the elastic exhaust structure, so that the pressing plate 50 slides to the direction of the grinding wheel 2 to cross the position of the exhaust plate 4. Then the pressing plate 50 will start to reset and contact with the circular arc plate 3. In the process of contact, the pressing plate 50 will scrape the medicine powder on the surface of the circular arc plate 3 to the upper surface of the pressing plate 50. Then the pressing plate 50 will continue to rotate with the grinding wheel 2. When the pressing plate 50 rotates to the upper end of the intersection between the blocking piece 48 and the grinding wheel 2, the pressing plate 50 will start to press the medicine between the blocking piece 48 and the grinding wheel 2, so that the medicine can be completely crushed.

[0042] In the embodiment, the gas conveying structure includes two arc-shaped plugs 9 symmetrically fixed on the inner side wall of the circular arc plate 3, and the arc-shaped plugs 9 abut against the outer wall of the center cylinder 7. An air inlet hole 11 is formed in the upper end of the outer side wall of the center cylinder 7. A sealing sheet 10 is fixed on the outer side wall of the end of the center cylinder 7 away from the grinding box 1, and abuts against the notch of the small tooth ring 8. A blocking plug 12 is slidably connected to the side surface of the sealing sheet 10, and can be inserted between the center cylinder 7 and the small tooth ring 8. A T-shaped sliding plate 17 is fixed on the end of the blocking plug 12 away from the grinding box 1. Two positioning plates 16 are slidably connected to the side surface of the T-shaped sliding plate 17, and are fixed on the grinding box 1.

[0043] In this embodiment, the sealing sheet 10 is connected with the suction pipe 25 away from the side of the grinding box 1, and the suction pipe 25 is located away from the side of the sealing plug 12 of the air inlet hole 11, the side surface of the suction pipe 25 is fixedly connected with the outer connecting pipe 27, one end of the outer connecting pipe 27 is provided with the rotating cylinder 28 which is rotationally connected with the central shaft 21, the side of the outer connecting pipe 27 close to the central cylinder 7 is slidingly connected with the sliding block 29, and the sliding block 29 seals the cavity of the outer connecting pipe 27, both ends of the sliding block 29 are provided with the through slot 30 which can communicate with the outer connecting pipe 27, the end of the outer connecting pipe 27 away from the central cylinder 7 is fixedly connected with the positioning frame 31, two spring threes 32 are fixedly connected between the positioning frame 31 and the sliding block 29, the sliding cylinder 14 is slidingly connected in the cavity of the central cylinder 7, and the sliding cylinder 14 can abut against the sliding block 29, and the spring one 13 is fixedly connected between the sliding cylinder 14 and the grinding box 1.

[0044] In this embodiment, the motor 55 is fixedly connected with the output end of the central shaft 21, and the large tooth ring 15 is meshed with one side of the small tooth ring 8, and the large tooth ring 15 is coaxial with the central shaft 21, and the inner side wall of the large tooth ring 15 is circumferentially provided with six inclined blocks one 18, and the connecting rod 20 is fixedly connected between each inclined block one 18 and the central shaft 21, and the inclined block two 19 is fixedly connected with the T-shaped sliding plate 17 close to the inclined block one 18, and the inclined block two 19 can abut against the inclined block one 18.

[0045] Specifically, the sieve plate 43 can be replaced, so that the upper end of the inner frame 40 is provided with the sieve plate 43 with different sieve hole sizes, and the upper surface of the sieve plate 43 is contacted with the pressing plate 50 during the rotation of the grinding wheel 2, so that the medicine powder which is not sieved by the sieve plate 43 is scraped up by the pressing plate 50 and is brought to the sealing piece 48 and the grinding wheel 2 again for secondary crushing, and the air is continuously sucked into the cavity between the piston 41 and the outer frame 39 through the suction pipe 25 and the positioning pipe 26 during the operation of the air conveying structure, so that the piston 41 is continuously moved to the position of the spring five 42, and the inner frame 40 and the sieve plate 43 are also moved, so as to improve the sieving efficiency of the sieve plate 43, and the spring five 42 stores elastic potential energy due to compression;

[0046] When the outer frame 39 needs to be installed in the cavity of the sliding frame 36, the upper pushing plate 37 needs to be pressed down first, and then the outer frame 39 is inserted into the inner frame 40 and the sliding frame 36, and the lower end of the outer frame 39 is always in abutment with the upper end of the upper pushing plate 37, and the limiting groove 45 and the positioning pipe 26 are located on the same axis, and then the pressing of the upper pushing plate 37 is stopped, and the spring four 38 is elastically reset to push the outer frame 39 and the upper pushing plate 37 to move upward, and the limiting groove 45 is sleeved on the positioning pipe 26 during the movement, so as to limit the transverse movement of the outer frame 39, and the sieve plate 43 is also in abutment with the notch at the lower end of the grinding cavity 6.

[0047] In the embodiment, the lower end of the grinding box 1 is fixedly connected with a sliding frame 36, the cavity of the sliding frame 36 is slidably connected with an upper push plate 37, two spring fours 38 are fixedly connected between the lower end of the upper push plate 37 and the sliding frame 36, the side surface of the sliding frame 36 is fixedly connected with a positioning pipe 26 which is in communication with the air suction pipe 25, and the other end of the positioning pipe 26 extends into the cavity of the sliding frame 36.

[0048] In the embodiment, the cavity of the sliding frame 36 is transversely slidably connected with an outer frame 39, the lower end of the outer frame 39 abuts against the upper push plate 37, the cavity of the outer frame 39 is slidably connected with an inner frame 40, a sieve plate 43 is mounted on the upper surface of the inner frame 40, the sieve plate 43 abuts against and communicates with the lower notch of the grinding cavity 6, one end of the inner frame 40 is fixedly connected with a piston 41, a spring five 42 is fixedly connected between the piston 41 and the inner wall of the outer frame 39, the side of the outer frame 39 close to the positioning pipe 26 is provided with a limiting groove 45, and the positioning pipe 26 is slidably connected into the cavity of the limiting groove 45.

[0049] In the embodiment, the elastic exhaust structure comprises an air suction groove 51 which is formed in the lower surface of a pressing plate 50, the other end of the pressing plate 50 is in communication with the central shaft 21, one end of the pressing plate 50 close to the central shaft 21 is fixedly connected with two position-symmetric slide rods 53, the outer side walls of the two slide rods 53 are slidably connected with a positioning sheet 52 which is fixedly connected with the grinding wheel 2, the outer side wall of each slide rod 53 is sleeved with a spring six 54 which abuts against the positioning sheet 52 and the pressing plate 50.

[0050] In the embodiment, the upper end of the grinding box 1 is provided with a feeding port, the notch of the feeding port abuts against a cover plate 46, one end of the cover plate 46 is rotatably connected with a torsional spring shaft 47 between the grinding box 1, the side of the grinding box 1 close to the blocking piece 48 is fixedly connected with a plug block 56, the upper surface of the plug block 56 is slidably connected with two plug rods 49 which can be inserted into the upper end of the blocking piece 48, and the outer side wall of the grinding box 1 close to the gear ring 15 is mounted with a protective shell 34.

[0051] As shown in FIG. 1, the inside of the grinding cavity 6 can be fed with medicine by rotating the cover plate 46 around the torsional spring shaft 47, then the cover plate 46 is closed with the feeding port by the elastic restoring force of the torsional spring shaft 47, and the blocking piece 48 is locked by inserting the plug rods 49 into the inside of the plug block 56 and then into the inside of the blocking piece 48.

[0052] Specifically, referring to FIG. (2), FIG. (7) and FIG. (13), the position where the suction pipe 25 is connected with the sealing sheet 10 is between the arc-shaped plug 9 and the adjacent blocking plug 12 in FIG. (7), and the air inlet hole 11 is located on the other side of the blocking plug 12. When the motor 55 drives the central shaft 21 to rotate, the connecting rod 20, the inclined block I 18 and the large gear ring 15 rotate together, then the large gear ring 15 drives the small gear ring 8 to rotate counterclockwise, and in the process of counterclockwise rotation of the small gear ring 8, the arc-shaped plug 9 in the small gear ring 8 rotates together. In the process of rotation of the arc-shaped plug 9, the blocking plug 12 blocks the cavity formed by the sliding cylinder 14 and the inclined block I 18, which makes the cavity formed by the small gear ring 8 and the sliding cylinder 14 suck the air in the suction pipe 25 in the process of rotation of the arc-shaped plug 9. Then, when moving to the position of the air inlet hole 11, the gas is transported to the inside of the central cylinder 7, then transmitted to the inside of the exhaust horizontal groove 5 through the air hole 24, and due to the small aperture of the exhaust horizontal groove 5, a high-pressure gas flow is formed to spray out to the surface of the grinding wheel 2, thereby cleaning the surface of the grinding wheel 2. At the same time, when the pressure in the central cylinder 7 increases, the sliding cylinder 14 is driven to slide, and the spring I 13 is stretched to achieve pressure retention.

[0053] At the same time, when the arc-shaped plug 9 passes the position of the blocking plug 12, the inclined block I 18 contacts the inclined block II 19, and the inclined edges of the two push to drive the T-shaped sliding plate 17 and the blocking plug 12 to move away from the grinding box 1, so that the blocking plug 12 does not affect the movement of the arc-shaped plug 9, and prevents the suction pipe 25 from sucking air to the position of the air inlet hole 11 in the opposite direction. When the air hole 24 cannot normally flow due to the movement of the sliding plate 22, the inside of the central cylinder 7 will continue to supply air and increase the pressure. At this time, the sliding cylinder 14 will continuously move away from the central cylinder 7, and the spring I 13 will also be stretched. In the process of continuous movement of the sliding cylinder 14, the sliding block 29 will be contacted. Referring to FIG. (12), when the sliding block 29 is pushed to move in the direction of the outer connecting pipe 27, the through groove 30 will be communicated with the cavity of the outer connecting pipe 27. At this time, the suction pipe 25 can be communicated with the outer connecting pipe 27, and then suck air to the position of the suction groove 51 through the outer connecting pipe 27, the rotating cylinder 28 and the central shaft 21. At this time, the pressure plate 50 is in the process of pushing the exhaust plate 4 and the sliding plate 22 to lift up, the slot of the suction groove 51 is on the side away from the exhaust plate 4, and the suction groove 51 and the exhaust plate 4 are in contact to form a relatively blocked state. Then, when the suction pipe 25 sucks air to the position of the outer connecting pipe 27, it will conduct air suction from the position of the suction groove 51, so that the powder gas at the position of the circular arc plate 3 will not be sucked in. In the process of air suction of the suction pipe 25, the gas will flow into the cavity between the outer frame 39 and the piston 41 again through the positioning pipe 26, and the spring five 42 will start to release the elastic restoring force to drive the piston 41 to move away from the limiting groove 45.

[0054] Working principle: after the motor 55 is started, the center shaft 21 and the grinding wheel 2 rotate together, the medicine is added from the feeding port and falls into the grinding cavity 6, and when the pressing plate 50 presses the position of the plugging piece 48 to the medicine, the grinding effect is improved, wherein the replaceable plugging piece 48 can adjust the gap with the grinding wheel 2, and the particles that are not fully ground are intercepted by the sieve plate 43 and pushed back to the grinding cavity 6 by the pressing plate 50 for secondary crushing, then the center shaft 21 drives the large tooth ring 15 to rotate through the connecting rod 20, the large tooth ring 15 engages the small tooth ring 8 to rotate, the arc-shaped plug 9 in the small tooth ring 8 rotates, the gas between the outer frame 39 and the piston 41 is sucked into the center cylinder 7 through the suction pipe 25 and the positioning pipe 26, the gas is transported to the exhaust horizontal groove 5 in the exhaust plate 4 through the center cylinder 7 and the air hole 24, and finally the high-speed airflow is sprayed to the surface of the grinding wheel 2 for cleaning, when the pressing plate 50 moves to contact the exhaust plate 4, the pressing plate 50 will first push the exhaust plate 4 to move up, causing the slide plate 22 to lift synchronously and make the air hole 24 misaligned to block the gas, the pressure in 7 increases, when the pressing plate 50 continues to move to trigger the elastic exhaust structure between the pressing plate 50 and the grinding wheel 2, the pressing plate 50 resets temporarily and scrapes off the medicine powder attached to the circular arc plate 3, at the same time, the airflow change generated by the gas supply structure is transmitted through the suction pipe 25, the external pipe 27 and the like, driving the piston 41 and the inner frame 40 in the sliding frame 36 to drive the sieve plate 43 to reciprocate, improving the screening efficiency, and realizing the airflow circulation in the grinding cavity 6, preventing the medicine powder from leaking out when the grinding wheel 2 surface is cleaned.

[0055] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A pediatric medication grinding device, comprising a grinding chamber (1), wherein a sealing member (48) is laterally inserted into the side surface of the grinding chamber (1), characterized in that: The grinding box (1) is rotatably connected to a central shaft (21). A grinding wheel (2) is sleeved on the outer wall of the central shaft (21). A grinding cavity (6) is formed between the outer wall of the grinding wheel (2) and the inner wall of the grinding box (1). Two symmetrical sliding plates (22) are slidably connected to the inner wall of the grinding cavity (6) away from the sealing member (48). An exhaust plate (4) is rotatably connected between the two sliding plates (22). A spring (23) is fixed to the upper end of the sliding plate (22). An exhaust groove (5) is opened at the end of the exhaust plate (4) near the grinding wheel (2). An arc plate (3) is rotatably connected to the side surface of the exhaust plate (4) near the grinding wheel (2), and the arc plate (3) is slidably connected to the inner wall of the grinding box (1). The outer wall of the grinding wheel (2) is slidably connected to a pressure plate (50), and an elastic exhaust structure is provided between the pressure plate (50) and the grinding wheel (2), and the elastic exhaust structure is connected to the central shaft (21). The slide plate (22) and the grinding box (1) are provided with a common air hole (24), and the air hole (24) can communicate with the exhaust transverse groove (5). The outer wall of the grinding box (1) is fixedly connected with a central cylinder (7) that communicates with the air hole (24). The outer wall of the grinding box (1) is also rotatably connected with a small toothed ring (8) that is coaxial with the central cylinder (7). An air supply structure is provided between the central cylinder (7) and the small toothed ring (8) to supply air to the interior of the exhaust plate (4). As the pressure plate (50) rotates with the grinding wheel (2), when the pressure plate (50) contacts the exhaust plate (4), it will first push the exhaust plate (4) upward, causing the exhaust plate (4) and the slide plate (22) to rise together. At this time, the holes of the air hole (24) will be misaligned, resulting in the air supply structure being unable to supply air normally. At this time, as the pressure plate (50) rotates, it drives the exhaust plate (4) to rise, and the arc plate (3) will also rotate and slide on the inner wall of the grinding box (1). When the exhaust plate (4) moves to the point where it can no longer move upward, the exhaust plate (4) is at its maximum tilt angle. At this time, if the pressure plate (50) continues to move, it will trigger the elasticity. The exhaust structure allows the pressure plate (50) to slide towards the grinding wheel (2) and thus flip over the position of the exhaust plate (4). Then the pressure plate (50) will begin to elastically reset and contact the arc plate (3). During the contact process, the pressure plate (50) will scrape the powder remaining on the surface of the arc plate (3) onto the upper surface of the pressure plate (50). Then the pressure plate (50) will continue to rotate with the grinding wheel (2). When the pressure plate (50) rotates to the upper end of the intersection of the sealing member (48) and the grinding wheel (2), the pressure plate (50) will begin to press the medicine between the sealing member (48) and the grinding wheel (2), so that the medicine can be completely crushed.

2. The pediatric medicine grinding device according to claim 1, characterized in that: The gas supply structure includes two arc-shaped plugs (9), which are symmetrically fixed to the inner sidewall of the arc plate (3) and abut against the outer wall of the central cylinder (7). An air inlet (11) is provided through the upper end of the outer sidewall of the central cylinder (7). A sealing plate (10) is fixed to the outer sidewall of the end of the central cylinder (7) away from the grinding box (1), and the sealing plate (10) abuts against the groove of the small toothed ring (8). A sealing plug (12) is slidably connected through the side surface of the sealing plate (10), and the sealing plug (12) can be inserted between the central cylinder (7) and the small toothed ring (8). A T-shaped sliding plate (17) is fixed to the end of the sealing plug (12) away from the grinding box (1). Two positioning plates (16) are slidably connected to the side surface of the T-shaped sliding plate (17), and the positioning plates (16) are fixed to the grinding box (1).

3. The pediatric medicine grinding device according to claim 2, characterized in that: The sealing plate (10) is connected to a suction pipe (25) on the side away from the grinding box (1), and the suction pipe (25) is on the side of the sealing plug (12) away from the air inlet (11). An outer pipe (27) is fixed to the side surface of the suction pipe (25). A rotating cylinder (28) rotatably connected to the central shaft (21) is installed at one end of the outer pipe (27). A slider (29) is slidably connected to the side of the outer pipe (27) near the central cylinder (7), and the slider (29) seals the chamber of the outer pipe (27). The slider (29) has through slots (30) at both ends that can communicate with the outer tube (27). The outer tube (27) is fixedly connected to a positioning frame (31) at the end away from the central cylinder (7). Two springs (32) are fixedly connected between the positioning frame (31) and the slider (29). A sliding cylinder (14) is slidably connected inside the cavity of the central cylinder (7), and the sliding cylinder (14) can abut against the slider (29). A spring (13) is fixedly connected between the sliding cylinder (14) and the grinding box (1).

4. The pediatric medicine grinding device according to claim 2, characterized in that: A motor (55) is fixedly connected to the outer wall of the grinding box (1), and the output end of the motor (55) is fixedly connected to the central shaft (21). A large toothed ring (15) is engaged on one side of the small toothed ring (8), and the large toothed ring (15) is coaxial with the central shaft (21). Six inclined blocks (18) are installed in a circular array on the inner side wall of the large toothed ring (15). Each inclined block (18) is fixedly connected to the central shaft (21) with a connecting rod (20). An inclined block (29) is fixedly connected to the side of the T-shaped slide plate (17) near the inclined block (18), and the inclined block (29) can abut against the inclined block (18).

5. A pediatric medicine grinding device according to claim 1, characterized in that: The lower end of the grinding box (1) is fixedly connected to a sliding frame (36). An upper push plate (37) is slidably connected to the cavity of the sliding frame (36). Two springs (38) are fixedly connected between the lower end of the upper push plate (37) and the sliding frame (36). A positioning tube (26) communicating with the suction pipe (25) is fixedly connected to the side surface of the sliding frame (36), and the other end of the positioning tube (26) extends into the cavity of the sliding frame (36).

6. The pediatric medicine grinding device according to claim 5, characterized in that: The outer frame (39) is slidably inserted into the cavity of the sliding frame (36), and the lower end of the outer frame (39) abuts against the upper push plate (37). The inner frame (40) is slidably connected to the cavity of the outer frame (39). A sieve plate (43) is installed on the upper surface of the inner frame (40), and the sieve plate (43) abuts against and communicates with the lower groove of the grinding chamber (6). A piston (41) is fixedly connected to one end of the inner frame (40), and a spring (42) is fixedly connected between the piston (41) and the inner wall of the outer frame (39). A limiting groove (45) is opened on the side of the outer frame (39) near the positioning tube (26), and the positioning tube (26) can slide up and down and be inserted into the cavity of the limiting groove (45).

7. The pediatric medicine grinding device according to claim 1, characterized in that: The elastic exhaust structure includes an air intake groove (51), which is opened on the lower surface of the pressure plate (50), and the other end of the pressure plate (50) is connected to the central shaft (21). Two symmetrical sliding rods (53) are fixedly connected to one end of the pressure plate (50) near the central shaft (21). The outer walls of the two sliding rods (53) are slidably connected to a positioning piece (52), and the positioning piece (52) is fixedly connected to the grinding wheel (2). A spring six (54) is sleeved on the outer wall of each sliding rod (53), and the spring six (54) abuts against the positioning piece (52) and the pressure plate (50).

8. The pediatric medicine grinding device according to claim 1, characterized in that: The grinding box (1) is provided with a feed inlet at the upper end. A cover plate (46) is abutted at the groove of the feed inlet. A torsion spring shaft (47) is rotatably connected to one end of the cover plate (46). A plug block (56) is fixedly connected to the side of the grinding box (1) near the sealing member (48). Two plug rods (49) are slidably connected to the upper surface of the plug block (56), and the plug rods (49) can be inserted into the upper end of the sealing member (48). A protective shell (34) is installed on the outer wall of the grinding box (1) near the large toothed ring (15).

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