A capsule powder inhalation device

Abstract

Based on the existing powder inhaler, the object of the present invention is to provide a powder inhaler with a new opening method. The mouthpiece, the capsule chamber, and the base are connected by a spherical pair rotating mechanism. The rotating shaft structure is arranged at the lower edge of the mouthpiece, the upper hemispherical pair groove structure is arranged on the outer wall of one side of the capsule chamber, and the lower hemispherical pair groove structure is arranged at the upper edge of the base. When the capsule powder inhalation device is assembled, the upper hemispherical pair groove structure and the lower hemispherical pair groove structure are exactly docked to form a rotatable shaft chamber that can rotate stably. The rotating structure is placed in the shaft chamber and rotates around the shaft chamber, so as to realize the rotational opening and closing of the mouthpiece relative to the capsule chamber. By changing the form of the rotating shaft to a spherical shaft pair, the cooperation and stability between the mouthpiece and the capsule chamber are improved. The spherical pair rotating mechanism has reliable performance, low manufacturing and assembly costs, and high yield. It is simple to operate and can be fully cleaned as much as possible to reduce pollution.

Description

Technical Field

[0001] The present invention relates to a capsule powder inhaler device for delivering medicaments in powder form for treating respiratory diseases such as asthma and chronic obstructive pulmonary disease. Background Art

[0002] In the technical field of known capsule powder inhalers, there are various different types of capsule powder inhalers. Existing capsule powder inhalers can be divided into three major categories:

[0003] The first category: reservoir-type powder inhalers, which have a reservoir inside that can store a certain dose of powder. This powder inhaler also has a metering component that can separate a certain dose of powder from the reservoir each time it is actuated. Then, the separated powder is inhaled into the patient's body through an exhaust duct. Disadvantages of this type of powder inhaler: First, the amount of powder delivered each time is unstable; Second, the sealing performance of this type of powder inhaler is poor, so the powder is prone to moisture absorption in a relatively humid environment, affecting the expected effect; Third, during the separation process of the powder in the reservoir, some powder will remain inside the powder inhaler, causing pollution to the powder inhaler and posing a certain hazard to the user.

[0004] The second category: multi-dose powder inhalers, where the powder is stored independently in blisters on a blister strip in advance. The blisters are evenly distributed on the blister strip, and the blister strip is installed on a rotating disk inside the powder inhaler; Each time the powder inhaler is actuated, one blister is opened, and the powder is inhaled into the patient's body through an exhaust pipe. This type of powder inhaler better ensures the sealing of the powder; Its disadvantages: First, the repeatability is poor, and there are differences in the powder delivered to the patient's body before and after by the same powder inhaler; Second, there will be powder residue inside the powder inhaler, causing pollution to the powder inhaler and posing a certain hazard to the user; Third, there will be powder residue in the blisters, resulting in the powder not achieving the expected performance.

[0005] The third category: single-dose powder inhalers, where the powder is stored independently in individual capsules in advance. The capsules are distributed on a capsule board. When the patient uses it, they first take out the capsules from the capsule board, then put the taken-out capsules into the capsule chamber 601 of the powder inhaler, and press the button 300 to pierce the capsules. The powder is inhaled into the patient's body through an exhaust pipe. Disadvantages of existing such products: First, the reliability of existing powder inhalers is poor; For example: ① During the piercing process, the piercing component is separated from the button 300 component; ② The button 300 cannot be pressed normally, both of which will cause the powder inhaler to not work properly; Second, the powder inhaler cannot be cleaned thoroughly, easily causing pollution; Third, it is not user-friendly enough, not convenient enough to use; The assembly process is complex, the defective rate is high, and the manufacturing cost is high.

[0006] The existing patent number is CN1953779B, and the patent name is inhalation device. It discloses a rotating shaft technology, but its disadvantage is that the matching mode of the suction nozzle 200 and the capsule compartment 600 causes a large shake between the suction nozzle 200 and the capsule compartment 600, and the shake is easy to occur. The shake will affect the stability of the dry powder inhaler during use. Summary of the invention

[0007] In view of this, the purpose of the present invention is to propose a powder inhaler with a new opening method based on the existing powder inhaler, wherein the suction nozzle 200, the capsule chamber 600, and the base 700 are connected by a ball-pair rotating mechanism, and the ball-pair rotating mechanism includes a rotating shaft structure 203, an upper hemispherical auxiliary groove structure 603, and a lower hemispherical auxiliary groove structure 702. The rotating shaft structure 203 is arranged at the lower edge of the suction nozzle 200, the upper hemispherical auxiliary groove structure 603 is arranged on one side outer wall of the capsule chamber 601, and the lower hemispherical auxiliary groove structure 702 is arranged at the upper edge of the base 700. When the capsule powder inhalation device is assembled, the upper hemispherical sub-groove structure 603 and the lower hemispherical sub-groove structure 702 are just docked to form a stably rotating shaft bin. The rotating structure is placed in the shaft bin and rotates around the shaft bin, thereby realizing the rotation and opening and closing of the suction nozzle 200 relative to the capsule bin 600. By changing the shaft form to a ball-and-shaft pair, the coordination and stability of the suction nozzle 200 and the capsule bin 600 are improved. The ball-and-shaft rotating mechanism has reliable performance, low manufacturing and assembly costs and high yield, simple operation, and can be fully cleaned as much as possible to reduce pollution.

[0008] A capsule powder inhalation device, comprising: a suction nozzle 200, a capsule bin 600 is provided at the lower part of the suction nozzle 200, and a base 700 is provided at the lower part of the capsule bin 600, wherein the suction nozzle 200, the capsule bin 600, and the base 700 are connected by a ball pair rotating mechanism, wherein the ball pair rotating mechanism comprises a rotating shaft structure 203, an upper hemispherical auxiliary groove structure 603, and a lower hemispherical auxiliary groove structure 702, wherein the rotating shaft structure 203 is arranged at the lower edge of the suction nozzle 200, the upper hemispherical auxiliary groove structure 603 is arranged on one side outer wall of the capsule chamber 601, and the lower hemispherical auxiliary groove structure 702 is arranged on the upper side of the base 700. At the edge, when the capsule powder inhalation device is assembled, the upper hemisphere sub-groove structure 603 and the lower hemisphere sub-groove structure 702 are just connected to form a rotating shaft bin that can rotate stably. The shape of the rotating shaft bin formed by the upper hemisphere sub-groove structure 603 and the lower hemisphere sub-groove structure 702 is similar to the rotating shaft structure 203. The size of the rotating shaft bin formed by the upper hemisphere sub-groove structure 603 and the lower hemisphere sub-groove structure 702 is slightly larger than the rotating shaft structure 203 by about 0.02-0.05mm. The rotating structure is placed in the rotating shaft bin and rotates around the rotating shaft bin, thereby realizing the rotation opening and closing of the suction nozzle 200 relative to the capsule bin 600.

[0009] In a preferred embodiment of the present invention, the rotating shaft structure 203 includes a rotating shaft 2031 and a ball pair structure 2032 extending inward along the rotating shaft 2031.

[0010] Further, the ball pair structure 2032 is a spherical or cylindrical or annular structure.

[0011] Further, the cylindrical ball pair structure 2032 is provided as solid or hollow.

[0012] In a preferred embodiment of the present invention, when the ball pair structure 2032 is a spherical or cylindrical structure, the upper hemispherical pair groove structure 603 and the lower hemispherical pair groove structure 702 are both spherical grooves or cylindrical grooves. The spherical groove or cylindrical groove on the capsule chamber 600 is docked with the spherical groove or cylindrical groove on the base 700 to form a stable rotating spherical rotating shaft chamber or cylindrical rotating shaft chamber. The rotating shaft structure 203 on the nozzle 200 rotates around the capsule chamber 600, which can provide a rotating shaft structure 203 based on the ball axis to stabilize the opening and closing of the nozzle 200.( Figure 4 )

[0013] In a preferred embodiment of the present invention, when the rotating shaft structure 203 is an annular structure, the upper hemispherical pair groove structure 603 is a bent structure extending downward, and the lower hemispherical pair groove structure 702 is a cylindrical hole with an upper opening. The bent structure of the upper hemispherical pair groove structure 603 is sleeved with the annular structure and then docked with the cylindrical hole of the lower hemispherical pair groove structure 702. The annular structure on the nozzle 200 rotates around the bent structure of the capsule chamber 600 to stabilize the opening and closing of the nozzle 200.

[0014] Further, there are two annular structures, bent structures, and cylindrical holes respectively, which increases the stability of the opening and closing of the nozzle 200.

[0015] In a preferred embodiment of the present invention, at least one guide rod 204 is provided at the rotating shaft structure 203, and at least one guide rail groove 606 is provided at the upper hemispherical pair groove structure 603 of the capsule chamber 600. The guide rod 204 is placed in the guide rail groove 606, which can limit the rotating shaft structure 203 from disengaging from the upper hemispherical pair groove structure 603, prevent the nozzle 200 from shaking, and ensure that the position is maintained during rotation.

[0016] Further, guide rods 204 are provided on both sides of the rotating shaft structure 203, and guide rail grooves 606 are provided on both sides of the upper hemispherical pair groove structure 603 of the capsule chamber 600. The guide rod 204 is placed in the guide rail groove 606, so that while the rotating shaft structure 203 does not disengage from the upper hemispherical pair groove structure 603, the rotating shaft structure 203 rotates more stably within the upper hemispherical pair groove structure 603, realizing the axial free flipping of the nozzle 200.

[0017] Further, the side plane of the guide rod 204 contacts the bottom surface of the guide rail groove 606 of the capsule chamber 600, which can limit the flipping angle of the nozzle 200.

[0018] Further, the flipping angle of the nozzle 200 is less than 100°.

[0019] In a preferred embodiment of the present invention, the ball pair rotating mechanism can be one group, or two groups or multiple groups. However, when the ball pair rotating mechanism is more than or equal to two groups, the guide rail groove 606 and the guide rod 204 mechanism can be cancelled, as Figure 17 shown.

[0020] In a preferred embodiment of the present invention, a dust-proof cover 100 is sleeved on the upper part of the nozzle 200, and the dust-proof cover 100 can stably protect the nozzle 200 from pollution and damage.

[0021] Further, a clearance protection cover 102 for protecting the rotating shaft structure 203 is provided at the lower part of the dust-proof cover 100, and the clearance protection cover 102 is integrally formed with the dust-proof cover 100.

[0022] Further, at least one group of first rib positions 101 are provided on the inner wall of the dust-proof cover 100. During assembly, the first rib positions 101 are mutually extruded with the capsule chamber 600 to generate frictional force, so as to achieve fixed non-detachment, making the connection between the dust-proof cover 100 and the outer wall of the capsule chamber 600 closer.

[0023] Further, the first rib positions 101 on the inner wall of the dust-proof cover 100 are two groups or more than two groups, and the first rib positions 101 are evenly arranged around the inner wall of the dust-proof cover 100.

[0024] In a preferred embodiment of the present invention, the nozzle 200 includes an inhalation channel 201 coaxially arranged therewith. A mesh hole 202 is provided at the connection between the inhalation channel 201 of the nozzle 200 and the capsule chamber 601, and the rotating shaft structure 203 is placed at the lower edge of the nozzle 200 close to the mesh hole 202.

[0025] Further, a first buckle 205 is provided at the lower edge of the nozzle 200, and a second buckle 604 is provided at the upper edge of the capsule chamber 600. When the nozzle 200 and the capsule chamber 600 are assembled, the first buckle 205 and the second buckle 604 are matched and connected to fix the nozzle 200. When replacing the drug, the nozzle 200 is rotated around the rotating shaft structure 203 as the axis, and the first buckle 205 is disengaged from the second buckle 604, facilitating the stable opening of the nozzle 200.

[0026] In a preferred embodiment of the present invention, the capsule chamber 600 has a capsule chamber 601 that can accommodate the capsule to be inhaled, and at least one group of cyclone air inlet holes 602 tangent to the capsule chamber 601 are provided above the capsule chamber 601.

[0027] In a preferred embodiment of the present invention, columns 607 for positioning are provided at the bottom of the capsule chamber 600, and hole positions 703 are provided on the base 700 to cooperate with the columns 607, so that when the capsule chamber 600 and the base 700 are assembled, good vertical positioning can be achieved.

[0028] In a preferred embodiment of the present invention, a third buckle 608 is provided at the bottom edge of the capsule chamber 600 extending downward, and a fourth buckle 705 is provided at the upper edge of the base 700 extending upward. The third buckle 608 and the fourth buckle 705 are cooperatively connected to fix the capsule chamber 600 and the base 700.

[0029] In a preferred embodiment of the present invention, second rib positions 609 are provided at the bottom of the capsule chamber 600, and third rib positions 704 are provided on the base 700 corresponding to the second rib positions 609. The second rib positions 609 and the third rib positions 704 are cooperatively limited one by one to ensure the accurate relative position and stable cooperation of the capsule chamber 600 and the base 700.

[0030] In a preferred embodiment of the present invention, a notch 706 extending downward is formed at the upper open edge of the base 700, and the button 300 is movably arranged in the notch 706.

[0031] Furthermore, a pointed pin 301 made of a metal material is connected to the button 300, and the pointed pin 301 can extend into the capsule chamber 601 by means of the pressing action of the button 300.

[0032] Furthermore, pinholes 605 are provided on both sides inside the capsule chamber 601 to facilitate the passage of the pointed pin 301.

[0033] Furthermore, a spring 400 is provided between the button 300 and the capsule chamber 601, and the spring 400 applies an elastic force to the button 300 in a direction away from the capsule chamber 601.

[0034] Furthermore, spring seats 500 are respectively provided on both sides of the capsule chamber 600, one side of the spring 400 is sleeved on the spring seat 500, and the other side is fixed to the button 300.

[0035] Furthermore, a concave structure 701 is provided on the opposite side of the base 700 relative to the lower hemisphere sub-groove structure 702. After the dust cover 100 is removed by the user through this concave part, it can be flipped along the direction of the rotation axis 2031 determined by the rotation axis structure 203 and the guide groove.

[0036] Advantages of the present invention: The object of the present invention is to propose a powder inhaler with a new opening method on the basis of the existing powder inhaler. The mouthpiece 200, the capsule chamber 600, and the base 700 are connected by a spherical pair rotating mechanism. The spherical pair rotating mechanism includes a rotating shaft structure 203, an upper hemispherical pair groove structure 603, and a lower hemispherical pair groove structure 702. The rotating shaft structure 203 is arranged at the lower edge of the mouthpiece 200, the upper hemispherical pair groove structure 603 is arranged on one outer wall of the capsule chamber 601, and the lower hemispherical pair groove structure 702 is arranged at the upper edge of the base 700. When the capsule powder inhalation device is assembled, the upper hemispherical pair groove structure 603 and the lower hemispherical pair groove structure 702 are exactly docked to form a rotatable shaft chamber. The rotating structure is placed in the shaft chamber and rotates around the shaft chamber, thereby realizing the rotational opening and closing of the mouthpiece 200 relative to the capsule chamber 600. By changing the form of the rotating shaft to a spherical shaft pair, the cooperation and stability between the mouthpiece 200 and the capsule chamber 600 are improved. The spherical pair rotating mechanism has reliable performance, low manufacturing and assembly costs, and high yield. It is simple to operate and can be fully cleaned as much as possible to reduce pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic structural view of the capsule powder inhalation device of the present invention.

[0038] Figure 2 It is an exploded view of the capsule powder inhalation device of the present invention.

[0039] Figure 3 It is a sectional view after assembly of the capsule powder inhalation device of the present invention.

[0040] Figure 4 It is an exploded view of the capsule powder inhalation device of the present invention.

[0041] Figure 5 It is a schematic structural view of the lancet of the present invention.

[0042] Figure 6 It is a schematic structural view of the dust cap of the present invention.

[0043] Figure 7 It is a schematic structural view of the dust cap of the present invention.

[0044] Figure 8 It is a sectional view of the mouthpiece of the present invention.

[0045] Figure 9 It is a three-dimensional view of the mouthpiece of the present invention.

[0046] Figure 10 It is a three-dimensional view of the capsule chamber of the present invention.

[0047] Figure 11 It is a three-dimensional view of the capsule chamber of the present invention.

[0048] Figure 12 This is a perspective view of the capsule chamber of the present invention.

[0049] Figure 13 This is a perspective view of the base of the present invention.

[0050] Figure 14 This is a side sectional view of the assembled capsule powder inhalation device of the present invention.

[0051] Figure 15 This is a perspective view of the closed state of the capsule powder inhalation device of the present invention.

[0052] Figure 16 This is a perspective view of the open state of the capsule powder inhalation device of the present invention.

[0053] Figure 17 This is a side perspective view of the ball pair rotation mechanism of the capsule powder inhalation device of the present invention.

[0054] Figure 18 This is a perspective view of the ball pair rotation mechanism of the capsule powder inhalation device of the present invention.

[0055] Figure 19 This is a perspective view of the rotating shaft structure of the capsule powder inhalation device of the present invention.

[0056] Figure 20 This is a perspective view of the rotating shaft structure of the capsule powder inhalation device of the present invention.

[0057] Figure 21 This is an exploded view of the rotating shaft structure of the capsule powder inhalation device of the present invention.

[0058] Figure 22 This is an exploded view of the rotating shaft structure of the capsule powder inhalation device of the present invention.

[0059] Figure 23 This is a perspective view of the rotating shaft structure of the capsule powder inhalation device of the present invention.

[0060] Description of the main reference numerals

[0061]

[0062]

[0063] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. Specific embodiments

[0064] As Figure 1 shown, this is a schematic structural view of the capsule powder inhalation device of the present invention; as Figure 4As shown, it is an exploded view of the capsule powder inhalation device of the present invention; as Figure 8 As shown, it is a sectional view of the mouthpiece of the present invention; as Figure 9 As shown, it is a perspective view of the mouthpiece of the present invention; as Figure 11 As shown, it is a perspective view of the capsule chamber of the present invention; as Figure 12 As shown, it is a perspective view of the capsule chamber of the present invention; as Figure 13 As shown, it is a perspective view of the base of the present invention; as Figure 14 As shown, it is a sectional view of the side of the assembled capsule powder inhalation device of the present invention; as Figure 15 As shown, it is a perspective view of the closed state of the capsule powder inhalation device of the present invention; as Figure 16 As shown, it is a perspective view of the open state of the capsule powder inhalation device of the present invention.

[0065] Example 1:

[0066] A capsule powder inhalation device, comprising: a mouthpiece 200, a capsule chamber 600 is provided at the lower part of the mouthpiece 200, and a base 700 is provided at the lower part of the capsule chamber 600. It is characterized in that: the mouthpiece 200, the capsule chamber 600, and the base 700 are connected by a ball pair rotating mechanism. The ball pair rotating mechanism includes a rotating shaft structure 203, an upper hemispherical pair groove structure 603, and a lower hemispherical pair groove structure 702. The rotating shaft structure 203 is arranged at the lower edge of the mouthpiece 200, the upper hemispherical pair groove structure 603 is arranged on the outer wall of one side of the capsule chamber 601, and the lower hemispherical pair groove structure 702 is arranged at the upper edge of the base 700. When the capsule powder inhalation device is assembled, the upper hemispherical pair groove structure 603 and the lower hemispherical pair groove structure 702 are exactly docked to form a rotatable shaft chamber stably. The shape of the shaft chamber formed by the upper hemispherical pair groove structure 603 and the lower hemispherical pair groove structure 702 is similar to the shape of the rotating shaft structure 203. The size of the shaft chamber formed by the upper hemispherical pair groove structure 603 and the lower hemispherical pair groove structure 702 is slightly about 0.02 - 0.05 mm larger than the rotating shaft structure 203. The rotating structure is placed in the shaft chamber and rotates around the shaft chamber, so as to realize the rotational opening and closing of the mouthpiece 200 relative to the capsule chamber 600.

[0067] When the ball pair structure 2032 is spherical, both the upper hemisphere sub-groove structure 603 and the lower hemisphere sub-groove structure 702 are spherical grooves. The spherical groove on the capsule chamber 600 is docked with the spherical groove on the base 700 to form a spherical rotating shaft chamber that can rotate stably. The rotating shaft structure 203 on the nozzle 200 rotates around the capsule chamber 600, and can provide a rotating shaft structure 203 based on the ball axis to stably open and close the nozzle 200. At least one guide rod 204 is provided at the rotating shaft structure 203, and at least one guide rail groove 606 is provided at the upper hemisphere sub-groove structure 603 of the capsule chamber 600. The guide rod 204 is placed in the guide rail groove 606, which can limit the rotating shaft structure 203 from detaching from the upper hemisphere sub-groove structure 603, prevent the nozzle 200 from shaking, ensure the position is maintained during rotation. The side plane of the guide rod 204 contacts the bottom surface of the guide rail groove 606 of the capsule chamber 600, which can limit the flipping angle of the nozzle 200, and the flipping angle of the nozzle 200 is less than 100°.

[0068] As Figure 6 shown, it is a schematic structural view of the dust-proof cover of the present invention; as Figure 7 shown, it is a schematic structural view of the dust-proof cover of the present invention.

[0069] A dust-proof cover 100 is sleeved on the upper part of the nozzle 200. The dust-proof cover 100 can stably protect the nozzle 200 from being contaminated and damaged. A clearance protection cover 102 for protecting the rotating shaft structure 203 is provided at the lower part of the dust-proof cover 100. The clearance protection cover 102 is integrally formed with the dust-proof cover 100. At least one set of first rib positions 101 is provided on the inner wall of the dust-proof cover 100. During assembly, the first rib positions 101 and the capsule chamber 600 are mutually extruded to generate frictional force to achieve fixation without falling off, making the connection between the dust-proof cover 100 and the outer wall of the capsule chamber 600 tighter.

[0070] As Figure 3 shown, it is a sectional view after assembly of the capsule powder inhalation device of the present invention; as Figure 4 shown, it is an exploded view of the capsule powder inhalation device of the present invention; as Figure 8 shown, it is a sectional view of the nozzle of the present invention; as Figure 9 shown, it is a three-dimensional view of the nozzle of the present invention; as Figure 11 shown, it is a three-dimensional view of the capsule chamber of the present invention.

[0071] The nozzle 200 includes an inhalation channel 201 coaxially arranged therewith. A mesh hole 202 is provided at the connection between the inhalation channel 201 of the nozzle 200 and the capsule chamber 601. The rotary shaft structure 203 is placed at the lower edge of the nozzle 200 near the mesh hole 202. A first buckle 205 is provided at the lower edge of the nozzle 200, and a second buckle 604 is provided at the upper edge of the capsule chamber 600. When the nozzle 200 is assembled with the capsule chamber 600, the first buckle 205 is connected to the second buckle 604 in a matching manner for fixing the nozzle 200. When replacing the medicine, the nozzle 200 is rotated around the rotary shaft structure 203 as the axis, and the first buckle 205 is disengaged from the second buckle 604, facilitating the stable opening of the nozzle 200.

[0072] As Figure 10 shown, it is a perspective view of the capsule chamber of the present invention; as Figure 12 shown, it is a perspective view of the capsule chamber of the present invention; as Figure 13 shown, it is a perspective view of the base of the present invention.

[0073] The capsule chamber 600 has a capsule chamber 601 that can accommodate the capsule to be inhaled. There is at least one set of cyclone air inlet holes 602 tangent to the capsule chamber 601 above the capsule chamber 601. Columns 607 for positioning are provided at the bottom of the capsule chamber 600, and holes 703 matching the columns 607 are provided on the base 700. When the capsule chamber 600 is assembled with the base 700, good vertical positioning is achieved. A third buckle 608 extends downward from the bottom edge of the capsule chamber 600, and a fourth buckle 705 extends upward from the upper edge of the base 700. The third buckle 608 is connected to the fourth buckle 705 in a matching manner for fixing the capsule chamber 600 and the base 700.

[0074] A second rib 609 is provided at the bottom of the capsule chamber 600, and a third rib 704 corresponding to the second rib 609 is provided on the base 700. The second rib 609 and the third rib 704 are in one-to-one correspondence and cooperate for limiting, ensuring the accurate relative position and stable cooperation of the capsule chamber 600 and the base 700.

[0075] As Figure 2 shown, it is an exploded view of the capsule powder inhalation device of the present invention; as Figure 5 shown, it is a schematic structural diagram of the lancet of the present invention.

[0076] An open edge at the upper part of the base 700 is provided with a notch 706 extending downward. The button 300 is movably arranged in the notch 706. A pointed pin 301 made of metal is connected to the button 300. The pointed pin 301 can extend into the capsule chamber 601 by means of the pressing action of the button 300. There are pinholes 605 on both sides inside the capsule chamber 601 to facilitate the passage of the pointed pin 301. A spring 400 is arranged between the button 300 and the capsule chamber 601. The spring 400 applies an elastic force to the button 300 in a direction away from the capsule chamber 601. Spring seats 500 are respectively arranged on both sides of the capsule bin 600. One side of the spring 400 is sleeved on the spring seat 500, and the other side is fixed on the button 300.

[0077] A concave structure 701 is arranged on the opposite side of the base 700 relative to the lower hemisphere sub-groove structure 702. After the user removes the dust cover 100 through this concave part, it can be flipped along the direction of the rotation axis 2031 determined by the rotation axis structure 203 and the guide groove.

[0078] Embodiment 2: As Figure 19 shown, it is a three-dimensional view of the rotation axis structure of the capsule powder inhalation device of the present invention; as Figure 20 shown, it is a three-dimensional view of the rotation axis structure of the capsule powder inhalation device of the present invention.

[0079] Its structure is basically the same as that of the dry powder inhaler in Embodiment 1. The main differences between the two are as follows:

[0080] The spherical pair structure 2032 is cylindrical. The cylindrical spherical pair structure 2032 is solid or hollow. The upper hemisphere sub-groove structure 603 and the lower hemisphere sub-groove structure 702 are both cylindrical grooves. The cylindrical grooves on the capsule bin 600 are docked with the cylindrical grooves on the base 700 to form a stable rotating cylindrical rotating shaft bin. The rotation axis structure 203 on the nozzle 200 rotates around the capsule bin 600, and can provide a rotation axis structure 203 based on the spherical axis to stably open and close the nozzle 200.

[0081] Embodiment 3: As Figure 21 shown, it is an exploded view of the rotation axis structure of the capsule powder inhalation device of the present invention.

[0082] Its structure is basically the same as that of the dry powder inhaler in Embodiment 1. The main differences between the two are as follows:

[0083] When the rotating shaft structure 203 is an annular structure, the upper hemisphere auxiliary groove structure 603 is a bent structure extending downward, the lower hemisphere auxiliary groove structure 702 is a cylindrical hole with an upper opening, the bent structure of the upper hemisphere auxiliary groove structure 603 is sleeved with the annular structure and then docked with the cylindrical hole of the lower hemisphere auxiliary groove structure 702, and the annular structure on the suction nozzle 200 rotates around the bent structure of the capsule chamber 600 to stabilize the opening and closing of the suction nozzle 200.

[0084] Embodiment 4: As Figure 22 shown, it is an exploded view of the rotating shaft structure of the capsule powder inhalation device of the present invention.

[0085] Its structure is basically the same as that of the dry powder inhaler in Embodiment 1, and the main differences between the two are as follows:

[0086] When the rotating shaft structure 203 is an annular structure and there is only one rotating shaft structure 203, the upper hemisphere auxiliary groove structure 603 is a shallow groove structure. Guide rods 204 are provided on both sides of the rotating shaft structure 203, and guide rail grooves 606 are provided on both sides of the upper hemisphere auxiliary groove structure 603 of the capsule chamber 600. The guide rods 204 are placed in the guide rail grooves 606, so that while the rotating shaft structure 203 does not break away from the upper hemisphere auxiliary groove structure 603, the lower hemisphere auxiliary groove structure 702 is a bent structure extending upward. The guide rods 204 are sleeved with the guide rail grooves 606, the bent structure is sleeved with the annular structure and the top end of the lower hemisphere auxiliary groove structure 702 is placed inside the upper hemisphere auxiliary groove structure 603, and the annular structure on the suction nozzle 200 rotates around the bent structure of the base 700 to stabilize the opening and closing of the suction nozzle 200.

[0087] Embodiment 5: As Figure 9 shown, it is a three-dimensional view of the suction nozzle of the present invention; as Figure 11 shown, it is a three-dimensional view of the capsule chamber of the present invention.

[0088] Its structure is basically the same as that of the dry powder inhaler in Embodiment 1, and the main differences between the two are as follows:

[0089] Guide rods 204 are provided on both sides of the rotating shaft structure 203, and guide rail grooves 606 are provided on both sides of the upper hemisphere auxiliary groove structure 603 of the capsule chamber 600. The guide rods 204 are placed in the guide rail grooves 606, so that while the rotating shaft structure 203 does not break away from the upper hemisphere auxiliary groove structure 603, the rotating shaft structure 203 rotates more stably inside the upper hemisphere auxiliary groove structure 603, realizing the axial free flipping of the suction nozzle 200.

[0090] The side plane of the guide rod 204 contacts the bottom surface of the guide rail groove 606 of the capsule chamber 600, which can limit the flipping angle of the suction nozzle 200.

[0091] The flipping angle of the suction nozzle 200 is less than 100°.

[0092] Example 6: As Figure 17 shown, it is a perspective view of the side of the ball pair rotation mechanism of the capsule powder inhaler of the present invention; as Figure 18 shown, it is a perspective view of the ball pair rotation mechanism of the capsule powder inhaler of the invention; as Figure 23 shown, it is a perspective view of the rotating shaft structure of the capsule powder inhaler of the present invention.

[0093] Its structure is basically the same as that of the dry powder inhaler in Example 1, and the main differences between the two are as follows:

[0094] The ball pair rotation mechanism is two groups or multiple groups. When the ball pair rotation mechanism is more than or equal to two groups, the guide rail groove 606 and the guide rod 204 mechanism can be cancelled.

[0095] Example 7: As Figure 6 shown, it is a schematic structural diagram of the dust-proof cover of the present invention.

[0096] Its structure is basically the same as that of the dry powder inhaler in Example 1, and the main differences between the two are as follows:

[0097] The first rib positions 101 on the inner wall of the dust-proof cover 100 are 2 groups or more, and the first rib positions 101 are evenly arranged around the inner wall of the dust-proof cover 100.

[0098] The beneficial effects of the present invention: The purpose of the present invention is to propose a powder inhaler with a new opening method on the basis of the existing powder inhaler. The mouthpiece 200, the capsule chamber 600, and the base 700 are connected by a ball pair rotation mechanism. The ball pair rotation mechanism includes a rotating shaft structure 203, an upper hemispherical pair groove structure 603, and a lower hemispherical pair groove structure 702. The rotating shaft structure 203 is arranged at the lower edge of the mouthpiece 200, the upper hemispherical pair groove structure 603 is arranged on one outer wall of the capsule chamber 601, and the lower hemispherical pair groove structure 702 is arranged at the upper edge of the base 700. When the capsule powder inhaler is assembled, the upper hemispherical pair groove structure 603 and the lower hemispherical pair groove structure 702 are exactly docked to form a rotatable shaft chamber. The rotating structure is placed in the shaft chamber and rotates around the shaft chamber, so as to realize the rotational opening and closing of the mouthpiece 200 relative to the capsule chamber 600. By changing the shaft form to a ball shaft pair, the cooperation and stability between the mouthpiece 200 and the capsule chamber 600 are improved. The ball pair rotation mechanism has reliable performance, low manufacturing and assembly costs, high yield, simple operation, and can be fully cleaned as much as possible to reduce pollution.

[0099] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent for the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention shall be subject to the appended claims.

Claims

1. A capsule powder inhalation device, comprising: The nozzle (200) has a capsule chamber (600) provided at the lower part thereof, and a base (700) provided at the lower part of the capsule chamber (600). It is characterized in that: the nozzle (200), the capsule chamber (600), and the base (700) are connected by a spherical pair rotating mechanism. The spherical pair rotating mechanism includes a rotating shaft structure (203), an upper spherical pair groove structure (603), and a lower spherical pair groove structure (702). The rotating shaft structure (203) is provided at the lower edge of the nozzle (200). The upper spherical pair groove structure (603) is provided on the outer wall of one side of the capsule chamber (601). The lower spherical pair groove structure (702) is provided at the upper edge of the base (700). When the capsule powder inhalation device is assembled, the upper spherical pair groove structure (603) and the lower spherical pair groove structure (702) are exactly docked to form a rotatable shaft chamber. The rotating structure is placed in the shaft chamber and rotates around the shaft chamber, thereby realizing the rotational opening and closing of the nozzle (200) relative to the capsule chamber (600). At least one guide rod (204) is provided at the rotating shaft structure (203). At least one guide rail groove (606) is provided at the upper spherical pair groove structure (603) of the capsule chamber (600). The guide rod (204) is placed in the guide rail groove (606), which can limit the rotating shaft structure (203) from disengaging from the upper spherical pair groove structure (603), prevent the shaking of the nozzle (200), and ensure the position is maintained during rotation. Guide rods (204) are provided on both sides of the rotating shaft structure (203). Guide rail grooves (606) are provided on both sides of the upper spherical pair groove structure (603) of the capsule chamber (600). The guide rod (204) is placed in the guide rail groove (606), so that while the rotating shaft structure (203) does not disengage from the upper spherical pair groove structure (603), the rotating shaft structure (203) rotates more stably in the upper spherical pair groove structure (603), realizing the axial free flipping of the nozzle (200). The rotating shaft structure (203) includes a rotating shaft (2031) and a spherical pair structure (2032) extending inward along the rotating shaft (2031). The side plane of the guide rod (204) contacts the bottom surface of the guide rail groove (606) of the capsule chamber (600), which can limit the flipping angle of the nozzle (200).

2. The capsule powder inhalation device according to claim 1, wherein: The spherical pair structure (2032) is spherical or cylindrical.

3. The capsule powder inhalation device according to claim 1, wherein: When the spherical pair structure (2032) is spherical or cylindrical, both the upper spherical pair groove structure (603) and the lower spherical pair groove structure (702) are spherical grooves or cylindrical grooves. The spherical groove or cylindrical groove on the capsule chamber (600) is docked with the spherical groove or cylindrical groove on the base (700) to form a rotatable spherical shaft chamber or cylindrical shaft chamber. The rotating shaft structure (203) on the nozzle (200) rotates around the capsule chamber (600), and can provide a rotating shaft structure (203) based on the spherical axis to stabilize the opening and closing of the nozzle (200).

4. The capsule powder inhalation device according to claim 1, characterized in that: When the rotating shaft structure (203) is an annular structure, the upper hemisphere auxiliary groove structure (603) is a bent structure extending downward, the lower hemisphere auxiliary groove structure (702) is a cylindrical hole with an upper opening, and the bent structure of the upper hemisphere auxiliary groove structure (603) is sleeved with the annular structure and then docked with the cylindrical hole of the lower hemisphere auxiliary groove structure (702). The annular structure on the suction nozzle (200) rotates around the bent structure of the capsule chamber (600) to stabilize the opening and closing of the suction nozzle (200).

5. The capsule powder inhalation device according to claim 1, wherein: The flipping angle of the suction nozzle (200) is less than 100°.

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