Medicine powder inhaler with self-cleaning function

Abstract

The invention discloses a medicine powder inhaler with a self-cleaning function, and relates to the technical field of inhaling devices.The medicine powder inhaler comprises a shell, an extrusion assembly and a conveying assembly, a medicine inlet is formed in the top of the shell, the extrusion assembly is located above the conveying assembly, and the extrusion assembly comprises an extrusion cavity and an extrusion plate; the conveying assembly comprises a conveying cavity and a grinding ring, and an output port is formed in the conveying cavity. A patient rotates an extrusion assembly, an extrusion plate extrudes pills, the pills are extruded into small pieces, then the small pieces move towards a conveying cavity through an extrusion cavity, after the small pieces of pills are conveyed to the conveying cavity, the patient rotates a grinding ring, the small pieces of pills are ground through the grinding ring, finally, air is sucked through a cavity of the patient, and medicine powder is output through an output port. And after the pills are ground into powder, a patient can conveniently inhale the powder, the situation that the pills are blocked in the airway of the patient, and potential safety hazards are caused is avoided, and the powdery medicine is more convenient to absorb.

Description

Technical Field

[0001] The invention relates to the technical field of inhalation devices, in particular to a powder inhaler with a self-cleaning function. Background Art

[0002] The powder inhaler is an important part of the pulmonary drug delivery system. The pulmonary drug delivery route has received extensive attention in the field of drug delivery system research and development due to its large absorption area and lack of liver first-pass effect. Its clinical application has also developed from traditional local treatment of asthma to the treatment of systemic diseases. Unlike general drug delivery routes, pulmonary drug delivery requires the use of a specific inhalation device to complete the dispersion, atomization and pulmonary delivery of the drug. The inhalation device plays a key role in the pulmonary drug delivery system.

[0003] Existing inhalers usually need to be disassembled for cleaning, and during the process of pill inhalation, some pills will adhere to the inside of the inhaler, resulting in pill waste and affecting the cleanliness of the inside of the inhaler. Summary of the invention

[0004] The object of the present invention is to provide a powder inhaler with a self-cleaning function to solve the problems in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A medicine powder inhaler with a self-cleaning function comprises: a shell, an extrusion assembly and a conveying assembly are arranged in the shell, a medicine inlet is arranged on the top of the shell, the extrusion assembly is located above the conveying assembly, the extrusion assembly comprises: an extrusion chamber, a plurality of extrusion plates are arranged in the extrusion chamber, the conveying assembly comprises: a conveying chamber, a grinding ring is arranged in the conveying chamber, the grinding ring is rotatably connected to the conveying chamber, and an output port is arranged on the conveying chamber.

[0007] The patient delivers the pills into the shell through the medicine inlet. When the pills enter the extrusion chamber, the patient rotates the extrusion assembly to move several extrusion plates to the opposite side, and then the extrusion plates squeeze the pills, so that the pills are squeezed into small pieces, and then move to the delivery chamber through the extrusion chamber. When the small pills are delivered to the delivery chamber, the patient rotates the grinding ring again to make the grinding ring grind the small pills, so that the small pills are crushed into powder, and finally the patient inhales through the cavity, and the powder is immediately output through the output port, thereby realizing the inhalation of the powder. After the pills are ground into powder, it is convenient for the patient to inhale, avoiding the blockage of the pills in the patient's airway to cause safety hazards, and the powdered medicine is easier to absorb.

[0008] Preferably, a rotating ring is provided on the side wall of the extrusion chamber, a plurality of worms are provided on the side of the rotating ring close to the extrusion chamber, a friction plate is provided on the side of the rotating ring close to the outer wall of the shell, the rotating ring is rotatably connected to the shell, a worm wheel is provided on the side of the extrusion plate close to the rotating ring, the worm is meshed with the worm wheel, and the worm wheel is rotatably connected to the extrusion chamber.

[0009] Preferably, a cone barb is provided at the bottom of the extrusion chamber, the cone barb is located at the center of the space surrounded by a plurality of extrusion plates, a shunt pipe is provided on the side of the cone bar away from the extrusion chamber, and a plurality of input ports are provided on the side wall of the extrusion chamber, and the input ports are connected to the shunt pipe.

[0010] A medicine powder inhaler with a self-cleaning function comprises: a shell, an extrusion assembly and a conveying assembly are arranged in the shell, a medicine inlet is arranged on the top of the shell, the extrusion assembly is located above the conveying assembly, the extrusion assembly comprises: an extrusion chamber, a plurality of extrusion plates are arranged in the extrusion chamber, the conveying assembly comprises: a conveying chamber, a grinding ring is arranged in the conveying chamber, the grinding ring is rotatably connected to the conveying chamber, and an output port is arranged on the conveying chamber.

[0011] The patient delivers the pills into the shell through the medicine inlet. When the pills enter the extrusion chamber, the patient rotates the extrusion assembly to move several extrusion plates to the opposite side, and then the extrusion plates squeeze the pills, so that the pills are squeezed into small pieces, and then move to the delivery chamber through the extrusion chamber. When the small pills are delivered to the delivery chamber, the patient rotates the grinding ring again to make the grinding ring grind the small pills, so that the small pills are crushed into powder, and finally the patient inhales through the cavity, and the powder is immediately output through the output port, thereby realizing the inhalation of the powder. After the pills are ground into powder, it is convenient for the patient to inhale, avoiding the blockage of the pills in the patient's airway to cause safety hazards, and the powdered medicine is easier to absorb.

[0012] Preferably, a rotating ring is provided on the side wall of the extrusion chamber, a plurality of worms are provided on the side of the rotating ring close to the extrusion chamber, a friction plate is provided on the side of the rotating ring close to the outer wall of the shell, the rotating ring is rotatably connected to the shell, a worm wheel is provided on the side of the extrusion plate close to the rotating ring, the worm is meshed with the worm wheel, and the worm wheel is rotatably connected to the extrusion chamber.

[0013] Preferably, a cone barb is provided at the bottom of the extrusion chamber, the cone barb is located at the center of the space surrounded by a plurality of extrusion plates, a shunt pipe is provided on the side of the cone bar away from the extrusion chamber, and a plurality of input ports are provided on the side wall of the extrusion chamber, and the input ports are connected to the shunt pipe.

[0014] When a capsule pill is inhaled, the capsule enters the extrusion chamber through the medicine inlet. At this time, the bottom side of the extrusion plate is closer to the cone thorn than the top side of the extrusion plate, so that the capsule is held up by several extrusion plates and does not contact the cone thorn. Then the patient rotates the rotating ring. When the rotating ring rotates, the worm is driven to rotate. When the worm rotates, it meshes with the worm gear, so that the worm drives the worm gear to rotate. When the worm gear rotates, it drives the extrusion plate to rotate. The top side of the extrusion plate rotates toward the side close to the cone thorn. During the rotation of the extrusion plate, the capsule is pushed to move. The capsule moves toward the side close to the cone thorn. During the movement of the capsule, the bottom of the capsule is pierced by the cone thorn, but the pill in the capsule does not leak at this time. When the extrusion plate moves to the maximum stroke, the tops of the extrusion plates contact and squeeze each other, and the bottom of the capsule is also located at the bottom of the input port. Then, the pill moves toward the input port under the action of gravity, and is then transported to the shunt pipe through the input port.

[0015] When all the pills in the capsule are discharged, the patient rotates the rotating ring in the opposite direction, and the bottom side of the squeezing plate rotates toward the side close to the cone thorn, and then the squeezing plate pushes the capsule skin to move toward the side close to the drug inlet, and the capsule skin is separated from the cone thorn when moving;

[0016] When a solid pill is inhaled, the solid pill enters the extrusion chamber through the medicine inlet, and the patient reciprocates the rotating ring to make the extrusion plate reciprocate in the extrusion chamber, so that the extrusion plate and the cone thorn cooperate with each other to squeeze and puncture the solid pill, breaking the large solid pill into small pills, so that the small pills are discharged through the input port;

[0017] When the extrusion plate rotates, the end faces of the extrusion plate will contact and collide with each other, generating vibration through the collision. The vibration is transmitted to the extrusion cavity, shaking off the pills attached to the extrusion cavity, the extrusion plate and the surface of the cone thorn, thereby avoiding pills from remaining in the extrusion cavity and causing pill waste. At the same time, the extrusion cavity is also cleaned, thereby improving the cleanliness of the extrusion cavity.

[0018] Preferably, a plurality of diversion chambers are provided in the delivery chamber, the diversion chambers are located at the bottom of the diversion tubes, the diversion chambers are communicated with the diversion tubes, and the diversion chambers correspond to the diversion tubes one by one.

[0019] Preferably, an output plate is provided on one side of the diversion cavity near the output port, the output plate is rotatably connected to the shell, a connecting port is provided on one side of the output plate near the edge, a vertical cavity is provided at the center of the output plate, the connecting port is connected to the vertical cavity through a pipeline, and a grinding column is provided in the vertical cavity.

[0020] Preferably, the grinding ring is located at the bottom of the grinding column, the grinding ring is provided with grinding grooves on the side opposite to the grinding column, a drop opening is provided in the center of the grinding ring, a rotating cavity is provided on the side of the grinding ring close to the outer wall of the shell, a plurality of blades are provided on one side of the rotating cavity of the grinding ring, and a plurality of air outlet holes are provided in the grinding ring.

[0021] Preferably, the output port comprises: an inner tube and an outer tube, the inner tube is communicated with the delivery chamber, and the outer tube is communicated with the rotation chamber.

[0022] Preferably, a plurality of fan blades are provided in the inner tube, and the fan blades are rotatably connected to the inner wall of the inner tube via a rotating rod.

[0023] No matter the pills in the capsule or the small pieces of pills broken from the solid pills, they are transported to the shunt pipe through the input port, and the pills are shunted by the shunt pipe to form several small portions, and then the pills are transported to the shunt cavity through the shunt pipe. Since only one connecting port is provided on the output plate, the pills in the other shunt cavity are blocked by the output plate, and the pills in the shunt cavity connected with the connecting port move toward the connecting port, and then the pills are transported to the vertical cavity through the pipeline in the connecting port.

[0024] After the pills are delivered to the vertical cavity, the patient wraps the delivery port with his mouth and blows air into the delivery port. Since the delivery port is divided into an inner tube and an outer tube, a plurality of fan blades are arranged in the inner tube. The fan blades rotate under the action of the blowing airflow, and the fan blades rotate toward the side close to the delivery cavity, so that the plurality of fan blades close the inner tube, and the blown gas can only move toward the outer tube. The air is delivered to the rotating cavity through the outer tube, so that the air pushes the blades to rotate in the rotating cavity, and the blades rotate while driving the grinding ring to rotate. The grinding ring and the grinding column cooperate with each other to grind the pills in the vertical cavity. Grinding treatment, the pills are ground into powder, and part of the air is transported from the rotating cavity to the vertical cavity through the air outlet, and then the air will blow the powder, avoiding the powder remaining on the surface of the grinding ring and the grinding column, thereby achieving the effect of self-cleaning and avoiding the waste of powder; and the air also drives the powder to start, so that the powder is transported to the conveying cavity through the drop port, and then the patient inhales, at this time, the fan blade rotates to the side close to the output port under the action of suction, and then the inner tube is connected with the output port, and the powder is then transported to the patient's mouth through the inner tube;

[0025] After the pill in one of the shunt chambers is inhaled, the patient rotates the output plate to rotate the connection port to the next shunt chamber, and then through multiple small inhalations, the absorption of the drug is better promoted, thereby improving the efficiency of drug absorption;

[0026] By disassembling the shell, the interior of the shell can be deeply cleaned to ensure that the medicine is not affected by contamination.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. By rotating the rotating ring, the rotating ring drives the extrusion plate to deflect. When the extrusion plate rotates, it drives the capsule pills or solid pills to move to the side close to the cone thorn, and then the extrusion plate and the cone thorn cooperate with each other to puncture or squeeze and crush the pills, so that small pieces of pills enter the shunt pipe 25 through the input port 26, and the extrusion plates will contact and collide with each other when rotating, and the vibration generated by the collision will be transmitted to the extrusion chamber, thereby avoiding the pills remaining in the extrusion chamber, causing the waste of pills, and at the same time, the extrusion chamber is cleaned, thereby improving the cleanliness of the extrusion chamber.

[0029] 2. Through the patient's own blowing and inhalation, the blown gas can only move toward the outer tube, and the air is transported to the rotating cavity through the outer tube, so that the air pushes the blades to rotate in the rotating cavity. The rotation of the blades drives the grinding ring to rotate at the same time. The grinding ring and the grinding column cooperate with each other to grind the pills in the vertical cavity into powder, and a part of the air is transported from the rotating cavity to the vertical cavity through the air outlet, and then the air will blow the powder, avoiding the powder remaining on the surface of the grinding ring and the grinding column, thereby achieving the effect of self-cleaning and avoiding the waste of powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A perspective view of the present invention;

[0031] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0032] Figure 3 The exploded view of the cone, shunt tube, and shunt cavity output plate;

[0033] Figure 4 It is a schematic diagram of the structure of the grinding ring and the output port;

[0034] Figure 5 It is a front view of the grinding ring and the output port;

[0035] Figure 6 It is a schematic diagram of the structure of the rotating ring and the extrusion plate;

[0036] Figure 7 is a schematic diagram of the structure of the grinding ring;

[0037] Figure 8 It is a schematic diagram of the structure when the fan blades are in a closed state.

[0038] In the figure: 1, shell; 11, medicine inlet; 12, outlet; 13, inner tube; 14, outer tube; 15, fan blade;

[0039] 2. Extrusion assembly; 21. Extrusion chamber; 22. Extrusion plate; 221. Worm gear; 23. Rotating ring; 231. Worm; 24. Cone thorn; 25. Diverter pipe; 26. Input port;

[0040] 3. Conveying assembly; 31. Conveying chamber; 32. Grinding ring; 33. Diverter chamber; 34. Output plate; 341. Connecting port; 342. Vertical chamber; 343. Grinding column; 35. Rotating chamber; 321. Blades; 322. Air outlet. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Example: Figure 1-Figure 8 As shown, the present invention provides a technical solution of a powder inhaler with a self-cleaning function, comprising: a shell 1, wherein an extrusion assembly 2 and a conveying assembly 3 are arranged in the shell 1, a drug inlet 11 is arranged on the top of the shell 1, the extrusion assembly 2 is located above the conveying assembly 3, the extrusion assembly 2 comprises: an extrusion chamber 21, wherein a plurality of extrusion plates 22 are arranged in the extrusion chamber 21, the conveying assembly 3 comprises: a conveying chamber 31, wherein a grinding ring 32 is arranged in the conveying chamber 31, the grinding ring 32 is rotatably connected to the conveying chamber 31, and an output port 12 is arranged on the conveying chamber 31.

[0043] As a specific embodiment of the present invention, a rotating ring 23 is provided on the side wall of the extrusion chamber 21, and a plurality of worms 231 are provided on the side of the rotating ring 23 close to the extrusion chamber 21, and a friction plate is provided on the side of the rotating ring 23 close to the outer wall of the shell 1, and the rotating ring 23 is rotatably connected to the shell 1, and a worm wheel 221 is provided on the side of the extrusion plate 22 close to the rotating ring 23, and the worm 231 is meshed with the worm wheel 221, and the worm wheel 221 is rotatably connected to the extrusion chamber 21.

[0044] As a specific embodiment of the present invention, a conical thorn 24 is provided at the bottom of the extrusion chamber 21, and the conical thorn 24 is located at the center of the space surrounded by several extrusion plates 22. A shunt pipe 25 is provided on the side of the conical thorn 24 away from the extrusion chamber 21. The conical thorn 24 is located on the side wall of the extrusion chamber 21 and has several input ports 26, and the input ports 26 are connected to the shunt pipe 25.

[0045] As a specific embodiment of the present invention, a plurality of diversion chambers 33 are provided in the delivery chamber 31 . The diversion chambers 33 are located at the bottom of the diversion tube 25 . The diversion chambers 33 are connected to the diversion tube 25 . The diversion chambers 33 correspond to the diversion tube 25 one by one.

[0046] As a specific embodiment of the present invention, an output plate 34 is provided on the side of the diversion chamber 33 close to the output port 12, and the output plate 34 is rotatably connected to the shell 1. A connecting port 341 is provided on the side of the output plate 34 close to the edge, and a vertical cavity 342 is provided at the center of the output plate 34. The connecting port 341 is connected to the vertical cavity 342 through a pipe, and a grinding column 343 is provided in the vertical cavity 342.

[0047] As a specific embodiment of the present invention, the grinding ring 32 is located at the bottom of the grinding column 343, and the grinding ring 32 is provided with grinding patterns on the side opposite to the grinding column 343. A drop opening is provided at the center of the grinding ring 32, and a rotating chamber 35 is provided on the side of the grinding ring 32 close to the outer wall of the shell 1. The grinding ring 32 is provided with a plurality of blades 321 on one side of the rotating chamber 35, and a plurality of air outlet holes 322 are provided in the grinding ring 32.

[0048] As a specific embodiment of the present invention, the output port 12 includes: an inner tube 13 and an outer tube 14 , the inner tube 13 is connected to the delivery chamber 31 , and the outer tube 14 is connected to the rotation chamber 35 .

[0049] As a specific embodiment of the present invention, a plurality of blades 15 are disposed in the inner tube 13 , and the blades 15 are rotatably connected to the inner wall of the inner tube 13 via a rotating rod.

[0050] Working principle of the present invention:

[0051] When a capsule is inhaled, the capsule enters the extrusion chamber 21 through the medicine inlet 11. At this time, the bottom side of the extrusion plate 22 is closer to the cone thorn 24 than the top side of the extrusion plate 22, so that the capsule is held by a plurality of extrusion plates 22 and does not contact the cone thorn 24. Then the patient rotates the rotating ring 23, and the rotating ring 23 rotates to drive the worm 231 to rotate. When the worm 231 rotates, it meshes with the worm wheel 221, so that the worm 231 drives the worm wheel 221 to rotate, and when the worm wheel 221 rotates, it drives the extrusion plate 22 to rotate, and the extrusion The top side of the plate 22 rotates toward the side close to the cone thorn 24. The squeezing plate 22 pushes the capsule to move during the rotation. The capsule moves toward the side close to the cone thorn 24. During the movement of the capsule, the bottom of the capsule is pierced by the cone thorn 24, but the pills in the capsule do not leak out at this time. When the squeezing plate 22 moves to the maximum stroke, the tops of the squeezing plates 22 contact and squeeze each other, and the bottom of the capsule is also located at the bottom of the input port 26. Then, the pills move toward the input port 26 under the action of gravity, and are then transported to the shunt pipe 25 through the input port 26.

[0052] When all the pills in the capsule are discharged, the patient rotates the rotating ring 23 in the opposite direction, and the bottom side of the squeezing plate 22 rotates toward the side close to the cone thorn 24, and then the squeezing plate 22 pushes the capsule skin to move toward the side close to the drug inlet 11, and the capsule skin is separated from the cone thorn 24 when moving;

[0053] When a solid pill is inhaled, the solid pill enters the extrusion chamber 21 through the medicine inlet 11. The patient reciprocates the rotating ring 23 to make the extrusion plate 22 reciprocate in the extrusion chamber 21, so that the extrusion plate 22 cooperates with the cone thorn 24 to squeeze and puncture the solid pill, breaking the large solid pill into small pills, so that the small pills are discharged through the input port 26.

[0054] When the extrusion plate 22 rotates, the end faces of the extrusion plate 22 contact and collide with each other, generating vibrations through the collisions. The vibrations are transmitted to the extrusion cavity 21, and the pills attached to the extrusion cavity 21, the extrusion plate 22 and the surface of the cone thorns 24 are shaken off, thereby avoiding the pills from remaining in the extrusion cavity 21 and causing the waste of pills, and at the same time, the extrusion cavity 21 is cleaned;

[0055] No matter the pills in the capsule or the small pieces of pills broken from the solid pills, they are transported to the shunt pipe 25 through the input port 26, and the pills are shunted by the shunt pipe 25 to form several small portions, and then the pills are transported to the shunt chamber 33 through the shunt pipe 25. Since only one connecting port 341 is provided on the output plate 34, the pills in the other shunt chamber 33 are blocked by the output plate 34, and the pills in the shunt chamber 33 connected with the connecting port 341 move toward the connecting port 341, and then the pills are transported to the vertical chamber 342 through the pipeline in the connecting port 341.

[0056] After the pills are delivered to the vertical cavity 342, the patient wraps the delivery port 12 with his mouth and blows air into the delivery port 12. Since the delivery port 12 is divided into an inner tube 13 and an outer tube 14, a plurality of blades 15 are provided in the inner tube 13. The blades 15 rotate under the action of the blowing airflow, and the blades 15 rotate toward the side close to the delivery cavity 31, so that the plurality of blades 15 close the inner tube 13, and the blown gas can only move toward the outer tube 14. The air is delivered to the rotating cavity 35 through the outer tube 14, so that the air in the rotating cavity 35 drives the blades 321 to rotate. The blades 321 rotate and drive the grinding ring 32 to rotate. The grinding ring 32 cooperates with the grinding column 343 to rotate. The pills in the vertical cavity 342 are ground into powder, and a portion of air is transported from the rotating cavity 35 to the vertical cavity 342 through the air outlet 322, and the air blows the powder to avoid the powder remaining on the surface of the grinding ring 32 and the grinding column 343, thereby achieving the effect of self-cleaning and avoiding the waste of powder; and the air also drives the powder to start, so that the powder is transported to the transport cavity 31 through the drop port, and then the patient inhales, and at this time the fan blade 15 rotates to the side close to the output port 12 under the action of suction, and the inner tube 13 is connected with the output port 12, and the powder is then transported to the patient's mouth through the inner tube 13;

[0057] After the pills in one of the diversion chambers 33 are inhaled, the patient rotates the output plate 34 to rotate the connection port 341 toward the next diversion chamber 33, thereby promoting better absorption of the medicine through multiple small inhalations;

[0058] By disassembling the shell 1, the interior of the shell 1 can be deeply cleaned, thereby ensuring that the medicine is not affected by contamination.

[0059] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A powder inhaler with a self-cleaning function, characterized in that: include: A shell (1), wherein an extrusion component (2) and a conveying component (3) are arranged in the shell (1), a drug inlet (11) is arranged at the top of the shell (1), the extrusion component (2) is located above the conveying component (3), the extrusion component (2) comprises: an extrusion chamber (21), wherein a plurality of extrusion plates (22) are arranged in the extrusion chamber (21), the conveying component (3) comprises: a conveying chamber (31), wherein a grinding ring (32) is arranged in the conveying chamber (31), wherein the grinding ring (32) is rotatably connected to the conveying chamber (31), and an output port (12) is arranged on the conveying chamber (31).

2. A powder inhaler with self-cleaning function according to claim 1, characterized in that: A rotating ring (23) is provided on the side wall of the extrusion chamber (21); a plurality of worms (231) are provided on the side of the rotating ring (23) close to the extrusion chamber (21); a friction plate is provided on the side of the rotating ring (23) close to the outer wall of the housing (1); the rotating ring (23) is rotatably connected to the housing (1); a worm wheel (221) is provided on the side of the extrusion plate (22) close to the rotating ring (23); the worm (231) is meshed with the worm wheel (221); and the worm wheel (221) is rotatably connected to the extrusion chamber (21).

3. A powder inhaler with self-cleaning function according to claim 2, characterized in that: A cone thorn (24) is provided at the bottom of the extrusion chamber (21), the cone thorn (24) is located at the center of a space surrounded by a plurality of extrusion plates (22), a shunt pipe (25) is provided on the side of the cone thorn (24) away from the extrusion chamber (21), and a plurality of input ports (26) are provided on the side wall of the extrusion chamber (21) where the cone thorn (24) is located, and the input ports (26) are in communication with the shunt pipe (25).

4. A powder inhaler with self-cleaning function according to claim 3, characterized in that: A plurality of diverter cavities (33) are arranged in the conveying cavity (31), and the diverter cavities (33) are located at the bottom of the diverter tube (25). The diverter cavities (33) are communicated with the diverter tube (25), and the diverter cavities (33) correspond to the diverter tube (25) one by one.

5. A powder inhaler with self-cleaning function according to claim 4, characterized in that: An output plate (34) is provided on one side of the flow dividing chamber (33) close to the output port (12); the output plate (34) is rotatably connected to the housing (1); a connecting port (341) is provided on one side of the output plate (34) close to the edge; a vertical chamber (342) is provided at the center of the output plate (34); the connecting port (341) is connected to the vertical chamber (342) through a pipeline; a grinding column (343) is provided in the vertical chamber (342).

6. A powder inhaler with self-cleaning function according to claim 5, characterized in that: The grinding ring (32) is located at the bottom of the grinding column (343); the grinding ring (32) is provided with grinding grooves on the side opposite to the grinding column (343); a drop opening is provided at the center of the grinding ring (32); a rotating chamber (35) is provided on the side of the grinding ring (32) close to the outer wall of the shell (1); a plurality of blades (321) are provided on the side of the grinding ring (32) located on the rotating chamber (35); and a plurality of air outlet holes (322) are provided in the grinding ring (32).

7. A powder inhaler with self-cleaning function according to claim 6, characterized in that: The output port (12) comprises an inner tube (13) and an outer tube (14); the inner tube (13) is in communication with the delivery chamber (31); and the outer tube (14) is in communication with the rotation chamber (35).

8. The powder inhaler with self-cleaning function according to claim 7, characterized in that: A plurality of fan blades (15) are arranged in the inner tube (13), and the fan blades (15) are rotatably connected to the inner wall of the inner tube (13) via a rotating rod.

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