quasi-nanometer device

Abstract

The present application relates to a kind of quasi-nasal, quasi-nasal includes: shell, including cavity, suction nozzle and let place through-hole;Protective cover;Drug dispensing assembly;Trigger, rotationally connected in shell, to trigger drug dispensing assembly for drug dispensing;Linkage mechanism, one end rotationally connected from let place through-hole at trigger, the other end rotationally connected at protective cover;When quasi-nasal is in initial state, protective cover is in initial position to close suction nozzle, and trigger is in initial position;When protective cover is rotated to open suction nozzle under external force, protective cover pulls linkage mechanism to rotate, and linkage mechanism drives trigger to rotate to trigger position;When protective cover resets, linkage mechanism drives trigger to reset.The quasi-nasal of the present application, user drives the rotation of trigger while rotating protective cover, one action can complete the two operation steps of opening protective cover and preparing to inhale, simple structure and convenient operation, also can avoid invalid drug administration and drug waste.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of powder inhalation device, in particular to a kind of quasi-nanometer device. BACKGROUND

[0002] Oral inhalation administration is a kind of administration mode requiring cooperation of medicine and equipment, and is an important administration route for treating various diseases including lung and whole body. Advair Diskus inhalation powder of GlaxoSmithKline Company (fluticasone propionate salmeterol inhalation powder) is a kind of inhalation agent commonly used for treating asthma and chronic obstructive pulmonary disease.

[0003] The use steps of the quasi-nanometer device are usually as follows:

[0004] 1) Open the outer cover: hold the cover sleeve with one hand, and place the thumb of the other hand on the thumb handle, and push the thumb outward until the cover sleeve is completely opened;

[0005] 2) Prepare to inhale medicine: hold the quasi-nanometer device with the suction nozzle facing oneself, and push the sliding rod outward until a click sound is emitted to trigger the opening of the bubble capsule;

[0006] 3) Inhale: hold the quasi-nanometer device and move it away from the mouth, inhale the medicine deeply and stably under the premise of ensuring smooth breathing, and take the quasi-nanometer device out of the mouth; continue to hold breath for about 10 seconds; slowly recover the exhalation;

[0007] 4) Close the device: place the thumb on the thumb handle, and pull it back as fast as possible, and a click sound is emitted when the quasi-nanometer device is closed;

[0008] 5) Rinse the mouth: after the inhalation is completed, do not swallow the rinse water.

[0009] For patients, it is crucial to ensure correct administration steps on the basis of the ease of use of the inhalation device. Before inhalation, two steps of opening the quasi-nanometer device and preparing to inhale are required, and only when the two steps are correctly completed, can the subsequent inhalation of the powder be ensured. The main function of the cover sleeve of the quasi-nanometer device is to protect the suction nozzle and the sliding rod of the device, which can avoid contamination of the suction nozzle due to exposure to the environment, and can also avoid sliding of the sliding rod in a non-administration state. The function of the sliding rod of the quasi-nanometer device is as follows: the sliding rod in the initial position mainly plays a role in protecting and shielding the empty bubble capsule, and reducing pollution; when the sliding rod is fully actuated to the end position, the process plays a role in: rotating the above-mentioned shielded empty bubble capsule away from the suction nozzle cavity, and moving the new bubble capsule containing the powder to a position directly opposite the suction nozzle cavity, to prepare for inhalation.

[0010] For example, the starting step (opening and preparation) of the device in patent US5590645 is relatively complex, and the patient is prone to misoperation during the use of the device. If the user starts inhaling without pulling the sliding rod, no effective drug will be given because the suction nozzle is blocked by the sliding rod and the bubble bag in the drug delivery position is the empty bubble bag after the last use. If the user does not pull the sliding rod to the predetermined position, the bubble bag cannot be directly opposite to the suction nozzle or the sliding rod partially blocks the bubble bag, resulting in that part of the dry powder will be left in the bubble bag during inhalation, which affects the accuracy of the drug dose. If the user misoperates and pulls the sliding rod multiple times, the opened bubble bag in the device will move with the medicine strip, and the medicine powder is still stored in the bubble bag, resulting in contamination and waste of the medicine powder.

[0011] In summary, due to the relatively complex structure of the inhaler device itself, errors are prone to occur during the opening and preparation of the device, which directly affects the subsequent inhalation process of the inhaler, and further leads to failure or incomplete drug delivery, thereby reducing the efficiency of drug delivery. SUMMARY

[0012] Based on the above defects in the prior art, the purpose of the present application is to provide an inhaler, which can improve the efficiency of drug delivery by rotating the protective cover while driving the rotation of the trigger, thereby completing the two operation steps of opening the protective cover and preparing for inhalation.

[0013] To this end, the present application provides the following technical solutions.

[0014] The present application provides an inhaler, which comprises:

[0015] a shell comprising a cavity, a suction nozzle and a displacement through hole;

[0016] a protective cover rotatably connected to the outside of the shell;

[0017] a medicine dispensing assembly located in the cavity;

[0018] a trigger rotatably connected in the shell for triggering the medicine dispensing assembly to dispense medicine;

[0019] a connecting rod mechanism having one end rotatably connected to the trigger from the displacement through hole and the other end rotatably connected to the protective cover;

[0020] wherein, when the inhaler is in an initial state, the protective cover is in an initial position to close the suction nozzle, and the trigger is in an initial position;

[0021] when the protective cover is rotated under external force to open the suction nozzle, the protective cover pulls the connecting rod mechanism to rotate, and the connecting rod mechanism drives the trigger to rotate to a trigger position;

[0022] When the protective cover is reset, the connecting rod mechanism drives the trigger to reset.

[0023] Preferably, when the trigger is in the initial position, the connecting rod mechanism is in the tension state, and under the pulling of the connecting rod mechanism, the trigger is limited to the first end of the accommodation through hole; and / or,

[0024] When the trigger is in the triggered position, the connecting rod mechanism is in the tension state, and under the pulling of the connecting rod mechanism, the trigger is limited to the second end of the accommodation through hole.

[0025] Preferably, when the trigger is in the initial position and / or the triggered position, the connecting rod mechanism is in the folded state.

[0026] Preferably, the connecting rod mechanism comprises a first connecting rod and a second connecting rod which are rotationally connected to each other, and the first connecting rod and the second connecting rod are rotationally connected to the trigger and the protective cover respectively.

[0027] Preferably, the trigger is provided with a first connecting piece which is at least partially located outside the shell, and one end of the connecting rod mechanism is rotationally connected to the first connecting piece.

[0028] Preferably, the trigger is provided with a reinforcing base, and the first connecting piece is fixed to the reinforcing base.

[0029] Preferably, the inner wall of the protective cover is provided with a second connecting piece, and the other end of the connecting rod mechanism is rotationally connected to the second connecting piece.

[0030] Preferably, the protective cover comprises a first end portion and a second end portion which are sequentially distributed in the direction of opening the protective cover, and the second connecting piece is located in the inner wall of the second end portion.

[0031] Preferably, the trigger comprises a gear portion and a baffle, the gear portion is engaged with the main wheel of the drug dispensing assembly, and one end of the connecting rod mechanism is rotationally connected to the baffle; when the trigger is in the initial state, the baffle covers the inlet end of the suction nozzle.

[0032] Preferably, the protective cover and the shell limit the initial position and the open position of the protective cover through the clamping structure.

[0033] Preferably, the inner wall of the protective cover is provided with a limiting protrusion, and the outer wall of the shell is provided with a first limiting groove and a second limiting groove which are sequentially distributed along the movement track of the limiting protrusion;

[0034] The first limiting groove and the limiting protrusion are matched to limit the initial position of the protective cover.

[0035] Preferably, the outer wall of the shell is provided with a groove, and the first limiting groove and the second limiting groove are located in the groove.

[0036] Preferably, the peripheral side wall of the shell is provided with a protruding part, which is used to abut one end of the protective cover to limit the opening position of the protective cover.

[0037] The present application has the following technical effects:

[0038] The present application provides a puffer, which sets a connecting rod mechanism between the protective cover and the trigger, and the connecting rod mechanism, the trigger and the protective cover constitute a linkage mechanism. When the user rotates the protective cover, the rotation of the trigger is driven, and two operation steps of opening the protective cover and preparing to inhale are completed by one action. The puffer has simple structure and convenient operation. Moreover, invalid administration caused by starting to inhale without manually actuating the trigger can be avoided, and new bubble sacs can be avoided from being opened but not used due to user's misoperation, drug waste is avoided, and administration efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 It is a perspective structural schematic view of the puffer of the present application in an initial state.

[0040] Figure 2 It is a perspective structural schematic view of the protective cover of the present application.

[0041] Figure 3 It is a perspective structural schematic view of the trigger of the present application.

[0042] Figure 4 It is an assembly drawing of the mouthpiece, the first shell and the trigger of the present application.

[0043] Figure 5 It is a perspective structural schematic view of the shell of the present application.

[0044] Figure 6 It is a structural assembly drawing of the shell of the present application.

[0045] Figure 7 It is a side view of the puffer of the present application in an initial state.

[0046] Figure 8 It is a side view of the puffer of the present application in a state of preparing to administer.

[0047] REFERENCE SIGNS REFERENCE SIGNS

[0048] 100, a quasi-nail;

[0049] 1, a housing; 11, a suction nozzle; 12, a clearance hole; 121, a first end; 122, a second end; 13, a first limiting groove; 14, a second limiting groove; 15, a recess; 16, a first shell; 161, a rotating shaft; 17, a second shell; 18, a protruding part;

[0050] 2, a protective cover; 21, a second connecting piece; 22, a first end; 23, a second end; 24, a limiting protrusion;

[0051] 3, a trigger; 31, a first connecting piece; 32, a reinforcing base; 33, a gear part; 34, a baffle;

[0052] 4, a connecting rod mechanism; 41, a first connecting rod; 42, a second connecting rod. DETAILED DESCRIPTION

[0053] In order to make the technical solutions and beneficial effects of the present application more obvious and easy to understand, the following will be described in detail by listing specific embodiments. Unless otherwise defined, the technical and scientific terms used herein have the same meaning as the technical and scientific terms in the technical field to which the present application belongs.

[0054] In the description of the present application, unless otherwise explicitly defined, the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of the simplified description of the present application, and do not indicate that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, i.e. cannot be understood as limiting the present application.

[0055] In the present application, the terms "first" and "second" are only used for the purpose of clear description, and cannot be understood as the relative importance of the indicated features or the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two; the meaning of "several" is at least one; except for explicit definition.

[0056] In the present application, unless otherwise explicitly defined, the terms "mounting", "connecting", "connecting", "fixing", "arranging" and the like should be interpreted in a broad sense. For example, "connecting" can be fixed connection, detachable connection or integral molding; can be mechanical connection or electrical connection; can be direct connection or indirect connection through intermediate medium, or can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0057] In the present application, unless otherwise explicitly defined, the first feature "on", "over", "above" and "above", "below", "under", "below" or "below" the second feature can be direct contact between the first feature and the second feature, or indirect contact between the first feature and the second feature through intermediate medium. Moreover, the first feature "over", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than the horizontal height of the second feature. The first feature "under", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than the horizontal height of the second feature.

[0058] The following is based on Figures 1 to 8 The present application is described in detail.

[0059] In the present embodiment, as Figure 1 and Figure 8 shown, the inhaler 100 comprises a housing 1, a protective cover 2, a drug dispensing assembly (not shown in the figure), a trigger 3 and a connecting rod mechanism 4, the housing 1 comprises a cavity, a suction nozzle 11 and a clearance through hole 12. The protective cover 2 is rotatably connected to the outside of the housing 1, the drug dispensing assembly is located in the cavity, the trigger 3 is rotatably connected in the housing 1, and the trigger 3 is used to trigger the drug dispensing assembly to dispense drugs. It should be understood that the drug dispensing assembly can adopt any existing drug dispensing structure of the inhaler, and generally the drug dispensing assembly of the inhaler comprises a main wheel, a bubble capsule roll, a bubble capsule base material winding wheel and a bubble capsule cover sheet winding wheel, the bubble capsule roll is rotatably connected in the housing 1 and the bubble capsule roll is provided with a plurality of drug bubble capsules, the bubble capsule base material winding wheel is used to collect the base material after the bubble capsule is torn, and the bubble capsule cover sheet winding wheel is used to collect the cover sheet after the bubble capsule is torn, and the trigger 3 is rotated by triggering the main wheel to trigger the drug dispensing assembly to dispense drugs, wherein the assembly structure of the main wheel, the bubble capsule roll, the bubble capsule base material winding wheel and the bubble capsule cover sheet winding wheel refers to the structure in any existing inhaler.

[0060] As Figure 1As shown, one end of the link mechanism 4 is rotatably connected to the trigger 3 at the let-out hole 12, and the other end is rotatably connected to the protective cover 2, so that the link mechanism 4, the trigger 3 and the protective cover 2 constitute a linkage mechanism.

[0061] As shown in Figure 1 and Figure 7 When the snuffler 100 is in the initial state, the protective cover 2 is in the initial position, the protective cover 2 closes the suction nozzle 11, and the suction nozzle 11 is protected from being contaminated, and the trigger 3 is in the initial position.

[0062] When an external force opens the protective cover 2, the protective cover 2 rotates, and the protective cover 2 pulls the link mechanism 4 to rotate the link mechanism 4 around the connection with the trigger 3 to the direction away from the suction nozzle 11, and the protective cover 2 continues to rotate, and the link mechanism 4 starts to rotate the trigger 3 together, as shown in Figure 8 When the protective cover 2 moves to the fully open position, it stops rotating, and at this time, the trigger 3 rotates to the trigger position. During the rotation of the trigger 3, the main wheel rotates and the bubble capsule roll, the bubble capsule base material roll and the bubble capsule cover roll rotate to start dispensing the medicine, and when the trigger 3 rotates to the trigger position, the empty bubble capsule is removed, the new bubble capsule on the bubble capsule roll is opposite to the suction nozzle 11 and the suction nozzle 11 is completely exposed, and the tearing mechanism (not shown in the figure) tears the cover of the new bubble capsule opposite to the suction nozzle 11, at this time, the snuffler 100 is in the ready-to-dose state, and the user can inhale the medicine by holding the suction nozzle 11.

[0063] When an external force drives the protective cover 2 to reset, the link mechanism 4 rotates the trigger 3, and then drives the trigger 3 to reset.

[0064] It should be understood that in order to avoid the protective cover 2 from being easily rotated to trigger the medicine, the protective cover 2 is arranged to be rotated under a certain external force, for example, by increasing the assembly friction between the protective cover 2 and the shell 1 to avoid the protective cover 2 from being easily rotated. Of course, since the protective cover of the existing snuffler cannot be easily rotated, the structure for limiting the protective cover 2 from being easily rotated is not limited to this, but can also be any existing snuffler configuration limiting structure, which will not be described here.

[0065] It should be understood that in order to facilitate operation, the user manually opens and closes the protective cover 2.

[0066] By adopting the technical scheme, the linkage mechanism is formed by the connecting rod mechanism 4, the trigger 3 and the protective cover 2, the rotation of the protective cover 2 drives the rotation of the trigger 3, one action can complete the two operation steps of opening the protective cover and preparing for inhalation, and the dose adjuster 100 is simple in structure and convenient to operate, compared with the existing dose adjuster, invalid drug delivery caused by the user starting inhalation without manually actuating the trigger 3 can be avoided, and the waste of medicine caused by the user misoperating and actuating the trigger 3 multiple times to open the new bubble sac without using it can be avoided, the drug delivery efficiency can be improved. In addition, during the rotation of the protective cover 2, the total rotation angle of the protective cover 2 is greater than that of the trigger 3, the user can operate the protective cover 2 greatly, and the small-amplitude rotation of the bubble sac roll in the dose adjuster 100 is also facilitated.

[0067] In an embodiment, as shown in Figure 1 、 Figure 5 and Figure 7 , when the trigger 3 is in the initial position, the connecting rod mechanism 4 is in the tension state, under the pulling of the connecting rod mechanism 4, the trigger 3 is limited to the first end 121 of the accommodation through hole 12, so that the trigger 3 can be fixed in the initial position.

[0068] In another embodiment, when the trigger 3 is in the initial position, the connecting rod mechanism 4 is in the folded state (not shown in the figure), so as to reduce the occupied space of the connecting rod mechanism 4, the first limiting structure (not shown in the figure) is arranged in the housing 1, so that the trigger 3 can be fixed in the initial position. In addition, when the trigger 3 is reset to the initial position, the first limiting structure makes a clicking sound when limiting, prompting the user that the trigger 3 is reset in place. Of course, when the trigger 3 is in the initial position, the state of the connecting rod mechanism 4 is not limited to the folded state, the connecting rod mechanism 4 can be in any state that it can form, in order to reduce the occupied space of the connecting rod mechanism 4, the folded state is preferred.

[0069] In an embodiment, when the trigger 3 is in the trigger position, the connecting rod mechanism 4 is in the tension state (not shown in the figure), under the pulling of the connecting rod mechanism 4, the trigger 3 is limited to the second end 122 of the accommodation through hole 12, so that the trigger 3 can be fixed in the trigger position.

[0070] In another embodiment, when the trigger 3 is in the trigger position, the linkage 4 is in a folded state (not shown in the figures) to reduce the occupied space of the linkage 4, and a second limiting structure is arranged inside the housing 1 to enable the trigger 3 to be fixed in the trigger position. In addition, when the trigger 3 is rotated to the trigger position, the second limiting structure makes a clicking sound when it is limited, prompting the user to rotate the trigger 3 to the position. Of course, when the trigger 3 is in the trigger position, the state of the linkage 4 is not limited to the folded state, and the linkage 4 can be in any state that it can form, and in order to reduce the occupied space of the linkage 4, it is preferred to be in the folded state.

[0071] It should be understood that herein, the folded state means that the smallest included angle between two adjacent links is less than 90°, which is an acute angle.

[0072] In an embodiment, as shown in Figure 1 and Figure 7 , the linkage 4 comprises a first link 41 and a second link 42 which are rotationally connected to each other, the first link 41 is rotationally connected to the trigger 3, and the second link 42 is rotationally connected to the housing 1. The linkage 4 is simple in structure, small in size and easy to assemble. Of course, the number of links of the linkage 4 is not limited to this, and it can also be three, four or even more, and all the links can be connected in a closed loop structure or an open loop structure.

[0073] In an embodiment, as shown in Figure 1 and Figure 3 , the trigger 3 is provided with a first connecting piece 31, at least part of which is located outside the housing 1, and one end of the linkage 4 (such as one end of the first link 41) is rotationally connected to the first connecting piece 31, which facilitates the assembly of the trigger 3 and the linkage 4. In addition, by limiting the height of the part of the first connecting piece 31 located outside the housing 1, the total length of the linkage 4 can be adjusted, and thus the total rotation angle difference between the protective cover 2 and the trigger 3 can be adjusted. Of course, the shape of the first connecting piece 31 includes but is not limited to rod-shaped, plate-shaped, block-shaped, and preferably, in order to facilitate the miniaturization design of the linkage 4, the first connecting piece 31 is in a plate-shaped structure.

[0074] Further, as shown in Figure 1 and Figure 3 , the trigger 3 is provided with a reinforcing base 32, and the first connecting piece 31 is fixed to the reinforcing base 32 to improve the connection strength of both the trigger 3 and the linkage 4. In addition, when the injector 100 is in the initial state, under the pulling force of the linkage 4, the reinforcing base 32 abuts against the first end 121 of the accommodation through hole 12, so that the trigger 3 is fixed in the initial position, and when the injector 100 is in the ready-to-administer state, the reinforcing base 32 abuts against the second end 122 of the accommodation through hole 12.

[0075] Further, as shown in Figure 1 The reinforcing base 32 passes through the clearance hole 12, and the first connecting member 31 is located outside the housing 1, so as to be assembled with the linkage mechanism 4.

[0076] In an embodiment, as shown in Figure 1 and Figure 2 The inner wall of the protective cover 2 is provided with a second connecting member 21, and the other end of the linkage mechanism 4 (such as one end of the second linkage 42) is rotatably connected to the second connecting member 21, so as to assemble the protective cover 2 with the linkage mechanism 4. In addition, by limiting the height of the second connecting member 21 protruding from the inner wall of the protective cover 2, the total length of the linkage mechanism 4 can be adjusted, and thus the total rotation angle difference between the protective cover 2 and the trigger 3 can be adjusted. Of course, the shape of the second connecting member 21 includes but is not limited to rod-shaped, plate-shaped, block-shaped, and preferably, in order to facilitate the miniaturization design of the linkage mechanism 4, the second connecting member 21 is a plate-shaped structure.

[0077] Further, as shown in Figure 1 and Figure 2 The protective cover 2 includes a first end portion 22 and a second end portion 23, which are sequentially distributed in the direction of opening the protective cover 2, and the second connecting member 21 is located in the inner wall of the second end portion 23. In this way, the second connecting member 21 is arranged close to the second end portion 23, which can reduce the total length of the linkage mechanism 4 and reduce the rotation distance in the opening and closing process of the protective cover 2.

[0078] Of course, the position of the second connecting member 21 on the protective cover 2 is not limited to this, and the second connecting member 21 can be located at any position between the second end portion 23 and the suction nozzle 11 when the cartridge 100 is in the initial state.

[0079] In an embodiment, as shown in Figure 3 and Figure 4 The trigger 3 includes a gear portion 33 and a baffle 34, the gear portion 33 is engaged with the main wheel of the drug dispensing assembly, and when the trigger 3 rotates, the main wheel rotates in the opposite direction. One end of the linkage mechanism 4 is rotatably connected to the baffle 34, which is simple in structure. When the cartridge 100 is in the initial state, the baffle 34 covers the inlet end of the suction nozzle 11, so as to protect and shield the blister in the housing 1, avoiding the blister from being contaminated. When the protective cover 2 is opened, the baffle 34 moves away from the suction nozzle 11 as the trigger 3 rotates, exposing the inlet end of the suction nozzle 11, so as to cooperate with the subsequent drug administration work.

[0080] In an embodiment, the protective cover 2 and the housing 1 are limited in position by a clamping structure at the initial position and the open position of the protective cover 2, so as to free the user's hand and facilitate the user's operation of the drug inhalation.

[0081] Further, as shown in Figure 2As shown, the inner wall of the protective cover 2 is provided with a limiting protrusion 24, such as... Figure 6 As shown, the outer wall of the outer casing 1 is provided with a first limiting groove 13 and a second limiting groove 14 sequentially distributed along the movement trajectory of the limiting protrusion 24. When the receiver 100 is in the initial state, the first limiting groove 13 cooperates with the limiting protrusion 24 to limit the initial position of the protective cover 2, and the protective cover 2 can remain in the initial position without easily moving. When the external force applied to the protective cover 2 reaches a preset value, the limiting protrusion 24 can disengage from the first limiting groove 13. Similarly, when the receiver 100 is in the ready-to-administer state, the second limiting groove 14 cooperates with the limiting protrusion 24 to limit the opening position of the protective cover 2, and the protective cover 2 can remain in the fully opened position without easily moving. When the external force applied to the protective cover 2 reaches a preset value, the limiting protrusion 24 can disengage from the second limiting groove 14.

[0082] Furthermore, such as Figure 6 As shown. The outer wall of the outer shell 1 is provided with a groove 15. The first limiting groove 13 and the second limiting groove 14 are both located in the groove 15. The groove 15 is used to allow the limiting protrusion 24 to extend into, which helps to reduce the gap between the outer shell 1 and the protective cover 2, and is beneficial to the miniaturization design of the accumulator 100.

[0083] Of course, the locking structure used for limiting between the outer shell 1 and the protective cover 2 is not limited to this. It can also be that a limiting protrusion is set on the outer shell 1 and a limiting groove is set on the protective cover 2, and the limiting is achieved by the locking between the limiting protrusion and the limiting groove.

[0084] In yet another implementation, such as Figure 2 and Figure 6 As shown, the inner wall of the protective cover 2 is provided with a limiting protrusion 24, and the outer wall of the outer shell 1 is provided with a first limiting groove 13. When the access device 100 is in the initial state, the first limiting groove 13 cooperates with the limiting protrusion 24 to limit the initial position of the protective cover 2. Figure 8 As shown, the peripheral sidewall of the outer casing 1 is provided with a protrusion 18, which is used to abut against one end of the protective cover 2 to limit the opening position of the protective cover 2.

[0085] Of course, the limiting structure for the protective cover 2 is not limited to this; it can also be limited by magnetic adsorption or friction limiting methods.

[0086] In one implementation, such as Figure 6 As shown, the housing 1 includes a first housing 16 and a second housing 17, which are connected to form a cavity for accommodating the internal components of the accumulator 100.

[0087] Furthermore, such as Figure 4 As shown, the trigger 3 is rotatably connected to the inner wall of the first housing 16 via the rotating shaft 161.

[0088] It should be understood that the above examples are exemplary and are not intended to limit the scope of the claims encompassing all possible embodiments. Various modifications and changes can also be made on the basis of the above examples without departing from the scope of the present disclosure. Similarly, various technical features of the above examples can be arbitrarily combined to form additional embodiments of the present disclosure that can not have been explicitly described. Therefore, the above examples merely express several embodiments of the present disclosure and do not limit the scope of the patent protection of the present disclosure.

Claims

1. A quasi-index device, characterized in that, The admittance device (100) includes: The outer shell (1) includes a cavity, a suction nozzle (11) and a clearance through hole (12). A protective cover (2) is rotatably connected to the outer shell (1); A drug delivery assembly located within the cavity; A trigger (3) is rotatably connected inside the housing (1) to trigger the drug dispensing assembly to dispense the drug; The linkage mechanism (4) has one end rotatably connected to the trigger (3) from the clearance through hole (12), and the other end rotatably connected to the protective cover (2). When the accumulator (100) is in the initial state, the protective cover (2) is in the initial position to close the nozzle (11), and the trigger (3) is in the initial position; When the protective cover (2) rotates under external force to open the suction nozzle (11), the protective cover (2) pulls the linkage mechanism (4) to rotate so that the linkage mechanism (4) rotates to a direction away from the suction nozzle (11), the protective cover (2) continues to rotate, and the linkage mechanism (4) drives the trigger (3) to rotate to the trigger position; When the protective cover (2) is reset, the linkage mechanism (4) drives the trigger (3) to reset; During the rotation of the protective cover (2), the total rotation angle of the protective cover (2) is greater than the total rotation angle of the trigger (3).

2. The quasi-inspector according to claim 1, characterized in that, When the trigger (3) is in the initial position, the linkage mechanism (4) is in a tensioned state. Under the pull of the linkage mechanism (4), the trigger (3) is confined to the first end (121) of the clearance through hole (12); and / or, When the trigger (3) is in the trigger position, the linkage mechanism (4) is in a tensioned state. Under the pull of the linkage mechanism (4), the trigger (3) is limited to the second end (122) of the clearance through hole (12).

3. The quasi-input device according to claim 1, characterized in that, When the trigger (3) is in the initial position and / or the trigger position, the linkage mechanism (4) is in a folded state.

4. The quasi-inspector according to claim 1, characterized in that, The linkage mechanism (4) includes a first link (41) and a second link (42) that are rotatably connected to each other. The first link (41) and the second link (42) are rotatably connected to the trigger (3) and the protective cover (2), respectively.

5. The quasi-inspector according to any one of claims 1-4, characterized in that, The trigger (3) is provided with a first connector (31), which is at least partially located outside the housing (1), and one end of the linkage mechanism (4) is rotatably connected to the first connector (31).

6. The quasi-input device according to claim 5, characterized in that, The trigger (3) is provided with a reinforcing base (32), and the first connector (31) is fixed to the reinforcing base (32).

7. The quasi-inspector according to any one of claims 1-4, characterized in that, The inner wall of the protective cover (2) is provided with a second connector (21), and the other end of the linkage mechanism (4) is rotatably connected to the second connector (21).

8. The quasi-input device according to claim 7, characterized in that, The protective cover (2) includes a first end (22) and a second end (23), the first end (22) and the second end (23) are distributed sequentially along the direction of opening the protective cover (2), and the second connector (21) is located on the inner wall of the second end (23).

9. The quasi-inspector according to any one of claims 1-4, characterized in that, The trigger (3) includes a gear (33) and a baffle (34). The gear (33) meshes with the main wheel of the drug dispensing assembly. One end of the linkage mechanism (4) is rotatably connected to the baffle (34). When the inhaler (100) is in the initial state, the baffle (34) covers the inlet end of the nozzle (11).

10. The quasi-inspector according to any one of claims 1-4, characterized in that, The protective cover (2) and the outer shell (1) are connected by a snap-fit ​​structure to limit the initial position and open position of the protective cover (2).

11. The quasi-inspector according to claim 10, characterized in that, The inner wall of the protective cover (2) is provided with a limiting protrusion (24), and the outer wall of the outer shell (1) is provided with a first limiting groove (13) and a second limiting groove (14) distributed sequentially along the movement trajectory of the limiting protrusion (24). The first limiting groove (13) cooperates with the limiting protrusion (24) to limit the initial position of the protective cover (2); the second limiting groove (14) cooperates with the limiting protrusion (24) to limit the opening position of the protective cover (2).

12. The quasi-inspector according to claim 11, characterized in that, The outer wall of the outer shell (1) is provided with a groove (15), and the first limiting groove (13) and the second limiting groove (14) are both located in the groove (15).

13. The quasi-inspector according to any one of claims 1-4, characterized in that, The outer casing (1) has a protrusion (18) on its peripheral sidewall. The protrusion (18) is used to abut against one end of the protective cover (2) to limit the opening position of the protective cover (2).

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