Quantitative atomization device

Abstract

The invention relates to a quantitative atomization device, which comprises a suction nozzle; the bag valve assembly comprises a valve element. A counting mechanism; the first triggering mechanism comprises an actuating piece, a gear and a first reset elastic piece; the second triggering mechanism comprises a button piece and a limiting piece; when the quantitative atomization device is in an initial state, the actuating piece and the gear are in a separated state; when the suction nozzle is rotated to a first position by external force, the actuating piece moves to be meshed with the gear; when the suction nozzle continues to rotate to the second position, the suction nozzle drives the gear to rotate through the actuating piece so as to trigger counting, the gear drives the valve element to rotate to the liquid inlet position so as to trigger liquid inlet, the gear is stopped when rotating to be limited to the limiting piece, and the actuating piece rotates to be separated from the gear; when the button piece is pressed by external force, the gear drives the valve element to reset under the bounce of the first reset elastic piece so as to trigger atomization. According to the quantitative atomization device, liquid inlet is triggered by rotating the suction nozzle, atomization is triggered by pressing the button piece, and therefore liquid inlet and atomization cannot be conducted at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a quantitative atomization device. Background Art

[0002] Oral and nasal inhalation is a drug administration method that requires the coordination of drugs and devices. It is an important route of administration for the treatment of various diseases including respiratory tract and systemic diseases. When using atomization, the drug needs to be used with a spray device during the inhalation process. Good drug administration efficiency and therapeutic effect put forward higher requirements for the inhalation device.

[0003] The bag-valve atomization system refers to a pressure-resistant container with a special valve system that contains medicine, emulsion or suspension and a suitable propellant. When in use, the pressure of the propellant is used to spray the contents in the form of mist, which can be used for lung inhalation or directly sprayed onto the cavity mucosa, skin and space disinfection.

[0004] The patent with application number 202121399318.3 is based on the existing bag valve atomizer device. It refines the atomized particles by optimizing the atomizer chip, and adds a metering valve to achieve quantitative drug delivery of the atomizer device. However, when the atomizer device is in use, after the liquid inlet is triggered by rotating the upper cover, the button must be pressed when the outlet starts to spray droplets to stop the liquid inlet and trigger the spray. During the initial atomization process, the button must be pressed when the outlet starts to spray droplets, resulting in a waste of liquid medicine. In addition, the atomizer device is complicated to operate. If the user does not operate according to the operating requirements, the atomizer device will be in a liquid inlet state and continue to spray, resulting in the failure of the quantitative dosage function, and the user cannot accurately dose the drug. Summary of the invention

[0005] Based on the above-mentioned defects in the prior art, the object of the present invention is to provide a quantitative atomization device, which can trigger liquid intake by rotating the suction nozzle under the cooperation of the suction nozzle and the first trigger mechanism, and limit the stop position of the valve core and control the triggering of atomization through the second trigger mechanism, so that liquid intake and spraying cannot be carried out at the same time, thereby avoiding affecting the accuracy of dosage due to improper operation.

[0006] To this end, the present invention provides the following technical solutions.

[0007] The present invention provides a quantitative atomization device, the quantitative atomization device comprising:

[0008] Suction nozzle;

[0009] A bag valve assembly, which is used to store liquid and quantitatively spray atomized particles and includes a valve core;

[0010] A counting mechanism, which is used to count the number of atomization times of the bag valve assembly;

[0011] A first trigger mechanism, comprising an actuating member, a gear and a first resetting elastic member, wherein the actuating member is rotatably connected to the suction nozzle, and the valve core is connected to the gear;

[0012] A second trigger mechanism, comprising a button member and a limit member connected to each other;

[0013] Wherein, when the quantitative atomization device is in an initial state, the actuating member and the gear are in a separated state;

[0014] When the suction nozzle is rotated to the first position by an external force, the actuating member moves with the suction nozzle to mesh with the gear; when the suction nozzle continues to rotate to the second position, the suction nozzle drives the gear to rotate through the actuating member to trigger counting, and the first reset elastic member is compressed, and the gear drives the valve core to rotate to the liquid inlet position to trigger liquid inlet, and the gear rotates to the limit position and stops at the limit member, and the actuating member rotates to disengage from the gear;

[0015] When an external force presses the button component, the limiting component moves, and under the rebound force of the first reset elastic component, the gear is separated from the limiting component and drives the valve core to reset, so as to trigger atomization.

[0016] Preferably, the suction nozzle rotates 180° to the first position, and further rotates 180° to the second position.

[0017] Preferably, the counting mechanism comprises a first pusher, and when the suction nozzle rotates to the first position, the actuating member directly or indirectly hits the first pusher and rotates to engage with the gear; and / or,

[0018] The second trigger mechanism includes a second pushing member. When the suction nozzle rotates to the second position, the actuating member directly or indirectly hits the second pushing member to reverse and disengage from the gear.

[0019] Preferably, the quantitative atomization device comprises a third pusher, which is rotatably connected to the mouthpiece;

[0020] When the suction nozzle rotates to the first position, the third pushing member hits the first pushing member, and the third pushing member rotates and pushes the actuating member to rotate to engage with the gear; and / or,

[0021] When the suction nozzle rotates to the second position, the third pushing member hits the second pushing member, and the third pushing member rotates and pushes the actuating member to rotate to disengage from the gear.

[0022] Preferably, the suction nozzle is provided with a fixed plate, and the actuating member and the third pushing member are rotatably connected to the fixed plate respectively; the first trigger mechanism includes a third reset elastic member, and both ends of the third reset elastic member are respectively connected to the fixed plate and the actuating member.

[0023] Preferably, the third pushing member comprises a pushing block, a first connecting shaft and an actuating block, the first connecting shaft is rotatably connected to the fixing plate, the pushing block is located at one side of the actuating member, and the cross section of the pushing block is a non-circular shape;

[0024] When the actuating block hits the first pushing member or hits the second pushing member, the actuating block drives the pushing block to rotate in a direction to push the actuating member.

[0025] Preferably, the cross section of the pushing block is triangular.

[0026] Preferably, the first trigger mechanism further comprises a mounting plate and a trigger assembly, the mounting plate is coaxially connected to the gear, the trigger assembly is arranged on the mounting plate, and the counting mechanism is at least partially inserted between the gear and the mounting plate;

[0027] When the gear drives the trigger assembly to move via the mounting plate, the trigger assembly triggers the counting mechanism to perform counting.

[0028] Preferably, the trigger assembly comprises a pawl, and the counting mechanism comprises a coaxially connected ratchet and a counting disk;

[0029] When the suction nozzle rotates from the first position to the second position, the mounting plate rotates along with the gear, and the pawl moves to mesh with the ratchet wheel and drives the ratchet wheel to drive the counting disk to rotate, so as to realize counting.

[0030] Preferably, the trigger assembly further comprises a limiting elastic member, a first limiting column and a second limiting column, the pawl and the limiting elastic member are rotatably connected to the mounting plate respectively, and the second limiting column is used to limit the limiting elastic member;

[0031] When the pawl moves to the counting trigger position, the pawl is engaged with the ratchet wheel under the limitation of the first limiting column;

[0032] When the pawl is reset, under the elastic cooperation of the limiting elastic member, the pawl jumps along the tooth surface of the ratchet wheel and disengages from the ratchet wheel.

[0033] Preferably, the gear and / or the mounting plate is provided with a first limiting structure, which cooperates with the limiting member to limit the stop position of the gear.

[0034] Preferably, the quantitative atomization device comprises a cover body provided with a chamber, and the button member is movably connected to the chamber; the second trigger mechanism further comprises a second reset elastic member, two ends of which are respectively connected to the inner wall of the chamber and the button member.

[0035] Preferably, both the first limiting structure and the limiting member are convex structures;

[0036] When the suction nozzle rotates to the second position, the first limiting structure moves to circumferentially abut against one side of the limiting member, and under the elastic cooperation of the second reset elastic member, the limiting member moves radially away from the mounting plate so that the first limiting structure passes over the limiting member, and the limiting member prevents the first limiting structure from reversing under the rebound of the first reset elastic member.

[0037] Preferably, the stopper is at least partially inserted between the gear and the mounting plate.

[0038] Preferably, when the quantitative atomization device is in an initial state, the second trigger mechanism, the trigger assembly and the counting mechanism are sequentially arranged at intervals of 90° along the circumference of the gear.

[0039] Preferably, the gear is an external gear; the actuator is a rod-shaped structure, one end of which can mesh with the gear.

[0040] Preferably, the first resetting elastic member is a planar spring, which is coaxially connected to the gear or the mounting plate;

[0041] When the actuating member drives the gear to rotate, the first resetting elastic member is compressed toward the axis;

[0042] When an external force presses the button member, the first resetting elastic member rebounds.

[0043] Preferably, the quantitative atomization device includes a cover body, which forms a cavity together with the suction nozzle, and the first trigger mechanism is located in the cavity; the cover body is provided with a limiting protrusion, and the mounting plate is provided with an arc-shaped limiting hole, and the limiting protrusion can be movably inserted into the limiting hole to limit the rotation angle of the mounting plate.

[0044] Preferably, the counting disk comprises a ones disk and a tens disk, and the ratchet is coaxially connected to the ones disk; when the ones disk rotates ten times, the tens disk rotates once.

[0045] Preferably, the counting mechanism comprises a single-tooth cam and a counting gear, the single-tooth cam is coaxially connected to the units disk, and the counting gear is coaxially connected to the tens disk;

[0046] When the single-tooth cam rotates together with the ones disk for the tenth time, it drives the counting gear to drive the tens disk to rotate once.

[0047] Preferably, the counting mechanism comprises a mounting shaft, a connecting member, a units transmission gear, a tens transmission gear and a second connecting shaft, wherein the units transmission gear and the tens transmission gear are coaxially connected via the second connecting shaft; one end of the connecting member is internally fixed to the mounting shaft, and the other end is fixed to the second connecting shaft, and the mounting shaft is fixed to the housing of the quantitative atomization device;

[0048] Wherein, the tens transmission gear is meshed with the counting gear; when the single-tooth cam rotates to the tenth time, it is meshed with the ones transmission gear.

[0049] Preferably, a first pushing member is provided at one end of the mounting shaft, and the first pushing member is used to drive the actuating member to engage with the gear when the suction nozzle rotates to the first position.

[0050] Preferably, the tens disk is provided with a second limiting structure, and the cover of the quantitative atomization device is provided with a third limiting structure;

[0051] When the counting times of the counting mechanism reaches a preset value, the third limiting structure cooperates with the second limiting structure to limit the tens disk from continuing to rotate.

[0052] Preferably, the bag valve assembly further comprises:

[0053] A tank for containing compressed gas;

[0054] A bag body, which is located in the tank body and is used to contain liquid;

[0055] A valve body, one end of which is inserted into the bag body;

[0056] A metering bin connected to the valve body and the two are in communication;

[0057] Wherein, one end of the valve core is inserted into the valve body;

[0058] When the quantitative atomization device is in an initial state, the outer wall of the valve core closes the connection between the bag body and the valve body;

[0059] When the valve core rotates to the liquid inlet position, the bag body and the metering bin are connected through the valve core, and the liquid in the bag body enters the metering bin under the pressure of the compressed gas;

[0060] When the valve core is reset to trigger atomization, the metering chamber is communicated with the valve core, and the liquid in the metering chamber enters the valve core and is sprayed out in the form of atomization.

[0061] Preferably, the end of the valve body inserted into the bag body is provided with a first through hole extending in the axial direction, the metering chamber is provided with a second through hole, the second through hole is communicated with the chamber of the valve body, and the end of the valve core inserted into the valve body is provided with a concave cavity and a third through hole;

[0062] When the quantitative atomization device is in an initial state, the outer wall of the valve core closes the first through hole;

[0063] When the valve core rotates to the liquid inlet position, the second through hole, the concave cavity and the first through hole are connected in sequence to form a liquid inlet channel;

[0064] When the valve core is reset to trigger atomization, the second through hole is connected to the third through hole to form a liquid outlet channel.

[0065] Preferably, the metering bin comprises:

[0066] a first partition plate having a fourth through hole;

[0067] A second partition plate is provided with a fifth through hole; the first partition plate and the second partition plate are sequentially distributed along a direction toward a connection point between the metering bin and the valve body, and separate the metering bin into a first chamber, a second chamber, and a third chamber;

[0068] A quantitative plate, which is movably located in the second chamber, and a peripheral side wall of the quantitative plate abuts against an inner wall of the second chamber;

[0069] An elastic member, one end of which is connected to the cavity wall of the first cavity, and the other end of which is connected to the quantitative plate;

[0070] An air pressure balance channel, which is communicated with the first chamber and the outside respectively;

[0071] Wherein, when the quantitative atomization device is in an initial state, the elastic member passes through the fourth through hole and presses the quantitative plate against the second partition plate.

[0072] The present invention has the following technical effects:

[0073] The present invention provides a quantitative atomization device, which can trigger liquid inlet and counting by rotating the suction nozzle by setting a first trigger mechanism and limiting the matching relationship between the first trigger mechanism, the suction nozzle and the valve core, and is easy to operate. The stop position of the gear is limited by setting a second trigger mechanism, so that the valve core can be stably in the liquid inlet position, and atomization can be triggered by pressing a button to ensure that the two steps of triggering liquid inlet and triggering atomization are performed separately, avoiding the quantitative atomization device being in a state of simultaneous liquid inlet and spraying due to improper operation, which leads to inaccurate dosage, and can ensure accurate metering. The quantitative atomization device has a counting function, which can remind the user of the remaining liquid, so as to replace the quantitative atomization device or replenish liquid in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] Figure 1 It is a structural explosion diagram of the quantitative atomization device of the present invention when it is in an initial state;

[0075] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0076] Figure 3 Schematic diagram of the assembly structure of the first trigger mechanism, the second trigger mechanism and the third pusher when the suction nozzle of the present invention is in the first position Figure 1 ;

[0077] Figure 4 Schematic diagram of the assembly structure of the first trigger mechanism, the second trigger mechanism and the third pusher when the suction nozzle of the present invention is in the first position Figure 2 ;

[0078] Figure 5 It is a schematic diagram of the assembly structure of the first trigger mechanism, the second trigger mechanism and the third pusher when the suction nozzle of the present invention is in the initial position;

[0079] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0080] Figure 7 Schematic diagram of the explosion structure of the counting mechanism of the present invention Figure 1 ;

[0081] Figure 8 Schematic diagram of the explosion structure of the counting mechanism of the present invention Figure 2 ;

[0082] Fig. 9 It is a structural cross-sectional view of the counting mechanism of the present invention;

[0083] Fig.10 The three-dimensional structure diagram of the cover body of the present invention is Figure 1 ;

[0084] Fig.11 The three-dimensional structure diagram of the cover body of the present invention is Figure 2 ;

[0085] Fig.12 It is a structural cross-sectional view of the quantitative atomization device of the present invention when it is in an initial state;

[0086] Fig.13 for Fig.12 Enlarged view of point C in the middle;

[0087] Fig.14 for Fig.12 Enlarged view of point D in the middle;

[0088] Fig.15 It is a structural cross-sectional view of the quantitative atomization device of the present invention when it is in a liquid-intake state;

[0089] Fig.16 for Fig.15 Enlarged view of point E in the middle;

[0090] Fig.17 for Fig.15 Enlarged view of point F in the middle;

[0091] Fig.18 It is a structural cross-sectional view of the quantitative atomization device of the present invention when it is in an atomization state;

[0092] Fig.19 for Fig.18 Enlarged view of point G in the middle.

[0093] Description of Reference Numerals

[0094] 100. Quantitative atomization device;

[0095] 1. Suction nozzle; 11. Fixing plate; 111. First side wall; 112. Second side wall;

[0096] 2. Bag valve assembly; 21. Valve core; 211. Concave cavity; 212. Third through hole; 22. Tank body; 23. Bag body; 24. Valve body; 241. First through hole; 25. Measuring bin; 251. Second through hole; 252. First baffle; 2521. Fourth through hole; 253. Second baffle; 2531. Fifth through hole; 254. First chamber; 255. Second chamber; 256. Third chamber; 257. Dosing plate; 258. Elastic member; 259. Air pressure balance channel; 26. Atomization chip; 27. Valve seat;

[0097] 3. Counting mechanism; 31. Ratchet; 32. Counting disk; 321. Units disk; 322. Tens disk; 3221. Second position limiting structure; 33. Single-tooth cam; 34. Counting gear; 35. Mounting shaft; 351. First pusher; 36. Connecting member; 37. Units transmission gear; 38. Tens transmission gear; 39. Second connecting shaft;

[0098] 4. first trigger mechanism; 41. actuator; 411. third connecting shaft; 42. gear; 43. first resetting elastic member; 44. mounting plate; 441. first limiting structure; 442. limiting hole; 443. fifth connecting shaft; 45. trigger assembly; 451. pawl; 452. resetting elastic member; 453. first limiting column; 454. second limiting column; 46. third resetting elastic member;

[0099] 5. second trigger mechanism; 51. button member; 52. limit member; 53. second push member; 54. second resetting elastic member; 55. fourth connecting shaft;

[0100] 6. third push member; 61. push block; 62. first connecting shaft; 63. actuating block; 631. first actuating block; 632. second actuating block;

[0101] 7. Cover body; 71. Chamber; 72. Limiting protrusion; 73. Third limiting structure; 74. First window; 75. Second window. DETAILED DESCRIPTION

[0102] In order to make the technical solutions and beneficial effects of the present invention more clearly understood, the following is a detailed description by listing specific embodiments. Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application belongs.

[0103] In the description of the present invention, unless otherwise explicitly defined, terms such as “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “height”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of simplified description of the present invention, and do not indicate that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and should not be understood as a limitation on the present invention.

[0104] In the present invention, 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 as "first" and "second" can explicitly include at least one of the features. In the description of the present invention, "multiple" means at least two; "several" means at least one, unless otherwise clearly defined.

[0105] In the present invention, unless otherwise clearly defined, the terms "install", "connect", "connect", "fix", "set", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral molding; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0106] In the present invention, unless otherwise clearly defined, a first feature being “on”, “above”, “above”, “below”, “below”, “below” or “below” a second feature may mean that the first feature is in direct contact with the second feature, or the first feature and the second feature are in indirect contact with each other through an intermediate medium. Moreover, a first feature being “on”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than the horizontal height of the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0107] The "upper" and "lower" mentioned in the present invention are Figure 1 The markings in shall prevail.

[0108] According to the following Figures 1 to 19 The quantitative atomization device of the present invention is described in detail.

[0109] In this embodiment, if Figure 1 and Figure 2 As shown, the quantitative atomization device 100 includes a mouthpiece 1, a bag valve assembly 2, a counting mechanism 3, a first trigger mechanism 4 and a second trigger mechanism 5. The user inhales the atomized particles through the mouthpiece 1. The bag valve assembly 2 is used to store liquid and quantitatively spray the atomized particles. The bag valve assembly 2 includes a valve core 21. The counting mechanism 3 is used to count the number of atomization times of the bag valve assembly 2. Figure 2 , Fig.12 and Fig.13As shown, the first trigger mechanism 4 includes an actuating member 41, a gear 42 and a first resetting elastic member 43, the valve core 21 is connected to the gear 42, the actuating member 41 is rotatably connected to the suction nozzle 1, one end of the first resetting elastic member 43 is connected to the actuating member 41, and the other end is connected to the suction nozzle 1, and the first resetting elastic member 43 is used to reset the actuating member 41. The second trigger mechanism 5 includes a button member 51 and a limit member 52 connected to each other.

[0110] When the metered-dose atomization device 100 is in the initial state, the actuating member 41 and the gear 42 are in a separated state.

[0111] When the nozzle 1 is rotated by an external force (such as manual rotation), since the actuator 41 is connected to the nozzle 1, the actuator 41 moves in a circular motion around the central axis of the nozzle 1. Figure 3 As shown, when the suction nozzle 1 rotates to the first position, the actuating member 41 moves to mesh with the gear 42 .

[0112] When the nozzle 1 continues to rotate, since the actuator 41 and the gear 42 are in meshing state, the nozzle 1 drives the gear 42 to rotate through the actuator 41, and the gear 42 can trigger counting by rotating. Figures 15 to 17 As shown, when the nozzle 1 rotates to the second position, the gear 42 drives the valve core 21 to rotate to the liquid inlet position to trigger liquid inlet. At this time, the gear 42 rotates to the limit position of the limit member 52 and stops, the valve core 21 can be stably in the liquid inlet position, and the actuator 41 rotates to disengage from the gear 42. During the rotation of the gear 42, the first reset elastic member 43 is compressed by the gear 42.

[0113] like Fig.18 and Fig.19 As shown, when the button 51 is pressed by an external force, the button 51 drives the limiter 52 to move. Under the rebound force of the first reset elastic member 42, the gear 42 is separated from the limiter 52 and drives the valve core 21 to reset. The reset of the valve core 21 triggers atomization, and the bag valve assembly 2 sprays atomized particles quantitatively. In addition, since the actuator 41 and the gear 42 are in a separated state, as shown in FIG. Fig.16 and Fig.19 As shown, the resetting of the gear 42 will not cause the suction nozzle 1 to rotate in reverse, thereby preventing the suction nozzle 1 from rotating during the atomization process and affecting the inhalation of atomized particles.

[0114] By adopting the above technical solution, by setting the first trigger mechanism 4 and limiting the matching relationship between the first trigger mechanism 4, the suction nozzle 1 and the valve core 21, the liquid inlet and counting can be triggered by rotating the suction nozzle 1, and the operation is simple. By setting the second trigger mechanism 5 to limit the stop position of the gear 42, the valve core 21 can be stably in the liquid inlet position, and the atomization can be triggered by pressing the button 51 to ensure that the two steps of triggering the liquid inlet and triggering the atomization are performed separately, avoiding the quantitative atomization device 100 being in a state of simultaneous liquid inlet and spraying due to improper operation, which leads to inaccurate dosage, and can ensure accurate measurement. The quantitative atomization device 100 has a counting function, which can remind the user of the remaining liquid so as to replace the quantitative atomization device 100 or replenish the liquid in time.

[0115] In one embodiment, if Figure 2 and Figure 3 As shown, the nozzle 1 rotates 180° to the first position, as shown in Fig.15 and Fig.16 As shown, the nozzle 1 continues to rotate 180° in the same direction to the second position (the initial position of the nozzle 1). When using the quantitative atomization device, the user first rotates the nozzle 1 360°, then covers the nozzle 1 with the mouth or nostrils, and presses the button 51 to inhale the atomized particles. Of course, the rotation angle of the nozzle 1 to the first position is not limited thereto, and the rotation angle can also be any angle between 0° and 360° and can implement the above solution.

[0116] In one embodiment, if Fig.13 As shown, the valve core 21 is coaxially connected to the gear 42, and the valve core 21 can rotate synchronously with the gear 42. Of course, the connection position of the valve core 21 and the gear 42 is not limited thereto, and the central axes of the valve core 21 and the gear 42 may not coincide, so that the valve core 21 moves around the central axis of the gear 42 to trigger liquid inlet or atomization.

[0117] In one embodiment, if Figure 2 and Figure 3 As shown, the counting mechanism 3 includes a first pusher 351. When the mouthpiece 1 rotates to the first position, the actuating member 41 directly or indirectly hits the first pusher 351, and the actuating member 41 rotates to mesh with the gear 42 due to the reaction force applied by the first pusher 351. Of course, the first pusher is not limited to being arranged on the counting mechanism 3, and can also be arranged on other non-moving parts of the quantitative atomization device 100, for example, on the cover 7 of the quantitative atomization device 100.

[0118] In one embodiment, if Figures 3 to 5As shown, the second trigger mechanism 5 includes a second pusher 53. When the mouthpiece 1 rotates from the first position to the second position, the actuating member 41 directly or indirectly hits the second pusher 53. The actuating member 41 is subjected to the reaction force applied by the second pusher 53 and reverses to disengage from the gear 42. Of course, the second pusher is not limited to being provided on the second trigger mechanism 5, but can also be provided on other non-moving parts of the quantitative atomization device 100, for example, provided on the cover 7 of the quantitative atomization device 100.

[0119] Furthermore, if Figures 2 to 5 As shown, the quantitative atomization device 100 includes a third pusher 6, which is rotatably connected to the mouthpiece 1. Figure 2 and Figure 3 As shown, when the nozzle 1 rotates to the first position, the third pusher 6 hits the first pusher 351, and the third pusher 6 rotates and pushes the actuating member 41 to rotate to engage with the gear 42. Figure 3 and Figure 5 As shown, when the nozzle 1 rotates to the second position, the third pusher 6 hits the second pusher 53, and the third pusher 6 rotates and pushes the actuator 41 to rotate to disengage from the gear 42. In this way, the actuator 41 can be prevented from directly hitting the first pusher 351 or the second pusher 53, thereby preventing the actuator 41 from being damaged or from sliding significantly due to being hit, which is not conducive to the meshing or separation process between the actuator 41 and the gear 42.

[0120] In one embodiment, if Fig.13 As shown, the nozzle 1 is provided with a fixed plate 11, and the actuating member 41 and the third pushing member 6 are rotatably connected to the fixed plate 11, respectively. Figure 2 and Figure 3 As shown, the first trigger mechanism 4 includes a third reset elastic member 46, the third reset elastic member 46 and the third push member 6 are respectively located on both sides of the actuating member 41, and the two ends of the third reset elastic member 46 are respectively connected to the fixed plate 11 and the actuating member 41. When the third push member 6 pushes the actuating member 41, the third reset elastic member 46 is compressed, and when the third push member 6 is separated from the actuating member 41, the third reset elastic member 64 rebounds to reset the actuating member 41.

[0121] Furthermore, if Figures 2 to 5As shown, the third pusher 6 includes a push block 61, a first connecting shaft 62 and an actuating block 63, the first connecting shaft 62 is rotatably connected to the fixed plate 11, the push block 61 and the third reset elastic member 46 are respectively located on both sides of the actuating member 41, and the cross section of the push block 61 is a non-circular shape. Preferably, in order to simplify the design, the cross section of the push block 61 is a triangle. When the actuating block 63 hits the first pusher 351 or hits the second pusher 53, the actuating block 63 drives the push block 61 to rotate. During the rotation process, the push block 61 can contact the side wall of the actuating member 41 and apply a driving force, thereby pushing the actuating member 41 to rotate, so that the actuating member 41 and the gear 42 are switched between the two matching relationships of the meshing state and the separation state.

[0122] Furthermore, if Figure 3 and Figure 4 As shown, the actuating block 63 includes a first actuating block 631 and a second actuating block 632. The first actuating block 631 cooperates with the second pusher 53 to drive the actuating member 41 to separate from the gear 42, and the second actuating block 632 cooperates with the first pusher 351 to drive the actuating member 41 to mesh with the gear 42. By adjusting the connection position between the first connecting shaft 62 and the first actuating block 631, the rotation angle of the pushing block 61 when the first actuating block 631 is hit by the second pusher 53 can be adjusted; by adjusting the connection position between the second actuating block 632 and the first actuating block 631, the rotation angle of the pushing block 61 when the second actuating block 632 is hit by the first pusher 351 can be adjusted.

[0123] like Fig.13 As shown, for ease of assembly, the fixing plate 11 is L-shaped, and includes a first side wall 111 and a second side wall 112. The first side wall 111 is connected to the bottom wall of the suction nozzle 1, and the second side wall 112 is provided with two axial holes. The actuator 41 is rotatably connected to one of the axial holes through the third connecting shaft 411, and the third pushing member 6 is rotatably connected to the second axial hole through the first connecting shaft 62.

[0124] In one embodiment, if Figures 2 to 6 As shown, the first trigger mechanism 4 also includes a mounting plate 44 and a trigger assembly 45. The mounting plate 44 is coaxially connected to the gear 42, and the trigger assembly 45 is arranged on the mounting plate 44. Fig.13 As shown, the counting mechanism 3 is partially inserted between the gear 42 and the mounting plate 44. When the gear 42 rotates, the mounting plate 44 rotates synchronously, and at this time, the trigger assembly 45 moves around the central axis of the gear 42 to trigger the counting mechanism 3 to count.

[0125] Furthermore, if Figure 2 and Figure 6 As shown, the trigger assembly 45 includes a pawl 451. Figure 2 and Figure 7As shown, the counting mechanism 3 includes a ratchet wheel 31 and a counting disk 32 which are coaxially connected. Figure 3 and Figure 5 As shown, when the suction nozzle 1 rotates from the first position to the second position, the mounting plate 44 rotates with the gear 42, and the pawl 451 moves around the central axis of the gear 42. When the pawl 451 moves to engage with the ratchet 31, the pawl 451 continues to move to drive the ratchet 31 to drive the counting disk 32 to rotate to achieve counting.

[0126] Furthermore, if Figure 6 As shown, the trigger assembly 45 also includes a limiting elastic member 452 , a first limiting column 453 and a second limiting column 454 , the pawl 451 and the limiting elastic member 452 are rotatably connected to the mounting plate 44 , respectively, and the first limiting column 453 and the second limiting column 454 are arranged on the mounting plate 44 .

[0127] When the pawl 451 moves to the counting trigger position, the pawl 451 engages with the ratchet 31. When the pawl 451 continues to move, it is subjected to the reaction force exerted by the ratchet 31, and the pawl 451 rotates toward the first limiting column 453. At this time, under the limitation of the first limiting column 453, the pawl 451 can be stably engaged with the ratchet 31.

[0128] When the pawl 451 is reset, the pawl 451 can easily jump along the tooth surface of the ratchet 31 and disengage from the ratchet 31 under the elastic cooperation of the limiting elastic member 452. The pawl 451 is arranged to be rotatable within a certain angle range, which can reduce the friction between the pawl 451 and the ratchet 31 during the reset process, and is conducive to the rapid reset of the trigger assembly 45. In this process, the second limiting column 454 is used to limit the limiting elastic member 452 so that the limiting elastic member 452 can be within the preset position range, so that the limiting elastic member 452 can limit the rotation angle of the pawl 451 in the direction toward the limiting elastic member 452.

[0129] Of course, the connection method between the pawl 451 and the mounting plate 44 is not limited to this. The pawl 451 can also be fixedly connected to the mounting plate 44 (not shown in the figure), that is, during the process of triggering counting and resetting the pawl 451, the pawl 451 does not rotate.

[0130] In one embodiment, if Figure 3 and Fig.16 As shown, the mounting plate 44 is provided with a first limiting structure 441 , which cooperates with the limiting member 52 to limit the stop position of the gear 42 .

[0131] Furthermore, if Figure 1 and Fig.13As shown, the quantitative atomization device 100 includes a cover body 7, the mouthpiece 1 and the cover body 7 together form a chamber, and the counting mechanism 3, the first trigger mechanism 4 and the second trigger mechanism 5 are all located in the chamber. Fig.10 and Fig.13 As shown, the cover body 7 is provided with a chamber 71, and the button member 51 is movably connected to the chamber 71. Figure 3 and Fig.13 As shown, the second trigger mechanism 5 further includes a second resetting elastic member 54. The button member 51 and the limiting member 52 are connected via a fourth connecting shaft 55. The second resetting elastic member 54 is sleeved on the fourth connecting shaft 55. The two ends of the second resetting elastic member 54 are respectively connected to the inner wall of the chamber 71 and the button member 51. When an external force presses the button member 51, the button member 51 compresses the second resetting elastic member 54. When the external force is removed, the second resetting elastic member 54 rebounds, so that the button member 51 drives the limiting member 52 to reset.

[0132] Furthermore, if Figure 3 As shown, the first limiting structure 441 and the limiting member 52 are both protruding structures, and the limiting structure is simple. Fig.16 As shown, when the mouthpiece 1 rotates to the second position, the first limiting structure 441 moves to abut against one side of the limiting member 52 in the circumferential direction, the second reset elastic member 54 is compressed, and the limiting member 52 together with the button member 51 moves radially away from the mounting plate 44, so that the first limiting structure 441 passes over the limiting member 52. After the first limiting structure 441 passes over the limiting member 52, the second reset elastic member 54 rebounds, so that the limiting member 52 circumferentially abuts against the first limiting structure 441, and the limiting operation is convenient. At this time, the limiting member 52 can prevent the first limiting structure 441 from reversing under the rebound of the first reset elastic member 43, and prevent the gear 42 from reversing and resetting to prevent the valve core 21 from reversing and resetting, so that the quantitative atomization device 100 is stably in the liquid inlet state, and the button member 51 needs to be pressed to trigger atomization.

[0133] Of course, the structures of the first limiting structure 441 and the limiting member 52 are not limited to the protruding structure, but can also be any limiting structure having a circumferential limiting function and capable of being separated under external force. For example, the first limiting structure 441 and the limiting member 52 are both magnets. When the first limiting structure 441 moves to a position relative to the limiting member 52, it is limited by adsorption. When the button member 51 is pressed, the two magnets are separated under external force, and the first trigger mechanism 4 is reset under the rebound of the first reset elastic member 43.

[0134] In one embodiment, if Fig.13 As shown, the limiting member 52 is at least partially inserted between the gear 42 and the mounting plate 44, which is beneficial to the compactness of the overall structure.

[0135] Furthermore, if Figure 5 and Fig.13 As shown, when the quantitative atomization device 100 is in the initial state, the second trigger mechanism 5 , the trigger assembly 45 and the counting mechanism 3 are sequentially arranged at intervals of 90° along the circumference of the gear 42 .

[0136] In a specific embodiment, Figure 2 and Figure 5 As shown, the second trigger mechanism 5, the trigger assembly 45 and the counting mechanism 3 are sequentially distributed in the clockwise direction as an example for specific description. Fig.12 and Fig.13 As shown, when the quantitative atomization device 100 is in the initial state, the actuating member 41 and the third push member 6 are both located above the second trigger mechanism 5, and the actuating member 41 and the gear 42 are in a separated state. When the quantitative atomization device 100 is used, an external force rotates the nozzle 1 360° clockwise, as shown in FIG. Figure 2 and Figure 3 As shown, when the nozzle 1 rotates 180° clockwise to the first position, the actuating member 41 and the third pusher 6 move around the central axis of the nozzle 1 to the position above the counting mechanism 3, and the third pusher 6 hits the first pusher 351 provided on the counting mechanism 3 and rotates. The rotating third pusher 6 pushes the actuating member 41 to rotate to mesh with the gear 42. During the process of the nozzle 1 rotating to the first position, the first trigger mechanism 4 remains stationary; Figure 5 , Fig.15 and Fig.16 As shown, the nozzle 1 continues to rotate 180° clockwise from the first position to the second position (initial position), the actuator 41 pushes the gear 42 to drive the mounting plate 44 and the valve core 21 to rotate synchronously, the valve core 21 rotates 180° clockwise to the liquid inlet position, the trigger assembly 45 triggers the counting mechanism 3 to count during the movement around the central axis of the gear 42, and the mounting plate 44 rotates to the first limiting structure 441 and stops after being limited by the limiting member 52 of the second trigger mechanism 5. Fig.18 and Fig.19 As shown, when the button 51 is pressed, the first limiting structure 441 is disengaged from the limiting member 52 under the rebound of the first reset elastic member 43, and the first trigger mechanism 4 rotates counterclockwise to reset. In this way, the gear 42 drives the valve core 21 to reset to trigger atomization.

[0137] In one embodiment, if Figure 3 As shown, the gear 42 is an external gear 42, the actuator 41 is a rod-shaped structure, and one end of the actuator 41 can mesh with the gear 42, and the structure is simple.

[0138] In one embodiment, if Figure 4As shown, the first resetting elastic member 43 is a plane spring, which is coaxially connected to the mounting plate 44. The mounting plate 44 is provided with a fifth connecting shaft 443, and the outer end of the first resetting elastic member 43 is connected to the fifth connecting shaft 443. When the actuating member 41 drives the gear 42 to rotate, the first resetting elastic member 43 is compressed toward the axis. After the liquid is filled, when the button member 51 is pressed by external force, the first resetting elastic member 43 rebounds to reset the first trigger mechanism 4. Of course, the assembly position of the first resetting elastic member 43 is not limited to this, and it can also be coaxially connected to the gear 42.

[0139] In one embodiment, if Fig.10 As shown, the cover body 7 is provided with a limiting protrusion 72, as shown in FIG. Figure 3 As shown, the mounting plate 44 is provided with an arc-shaped limiting hole 442, as shown in FIG. Fig.13 As shown, the limiting protrusion 72 is movably inserted into the limiting hole 442, and the movement trajectory of the limiting protrusion 72 is limited by the limiting hole 442. The rotation angle of the gear 42 is limited by limiting the rotation angle of the mounting plate 44, and then the rotation angle of the valve core 21 and the movement distance of the trigger component 45 can be limited, so as to accurately control the counting, liquid inlet and atomization metering. Further, the limiting hole 442 limits the rotation angle of the limiting protrusion 72 to 180°.

[0140] In one embodiment, if Figure 2 and Figure 7 As shown, the counting disk 32 includes a ones disk 321 and a tens disk 322. The ratchet 31 is coaxially connected to the ones disk 321. The ratchet 31 can be a separate component or can be integrally formed with the ones disk 321. When the ones disk 321 rotates ten times, the tens disk 322 rotates once to increase the counting capacity of the counting mechanism 3. The counting capacity of the counting mechanism 3 can be as high as 99 times. The peripheral walls of the ones disk 321 and the tens disk 322 are respectively provided with ten numbers 0-9 distributed at equal intervals. The counting disk 32 is located in the cavity formed by the cover body 7 and the suction nozzle 1, as shown in FIG. Figure 2 and Fig.10 As shown, the cover body 7 is provided with a first window 74 and a second window 75, wherein the first window 74 is used to display the counting result of the ones digit disk 321, and the second window 75 is used to display the counting result of the tens digit disk 322, wherein the numbers displayed in the first window 74 and / or the second window 75 may be gradually decreased from 9 to 0, or may be gradually increased from 0 to 9. Taking the counting of the numbers of the ones digit disk 321 and the tens digit disk 322 increasing from 0 to 9 in sequence as an example, when the number of the ones digit disk 321 displayed in the first window 74 changes from 0 to 9, the number of the tens digit disk 322 displayed in the second window 75 changes from 0 to 1.

[0141] Furthermore, if Figure 7As shown, the ratchet wheel 31 has ten ratchet teeth. Each time the ratchet wheel 31 rotates one tooth pitch, the units disk 321 rotates 36°, and the numbers on the peripheral wall of the units disk 321 increase by 1 (positive counting) or decrease by 1 (reverse counting).

[0142] In one embodiment, if Figure 8 and Fig. 9 As shown, the counting mechanism 3 includes a single-tooth cam 33 and a counting gear 34. The single-tooth cam 33 is coaxially connected to the ones disk 321. The single-tooth cam 33 can be a separate component or can be integrally formed with the ones disk 321. The counting gear 34 is coaxially connected to the tens disk 322. The counting gear 34 can be a separate component or can be integrally formed with the tens disk 322. When the single-tooth cam 33 rotates with the ones disk 321 for the tenth time, it drives the counting gear 34 to drive the tens disk 322 to rotate once.

[0143] Furthermore, if Figure 7 As shown, the counting gear 34 has ten gear teeth. Every time the counting gear 34 rotates one pitch, the tens disk 322 rotates 36°, and the numbers on the peripheral wall of the tens disk 322 increase by 1 (positive counting) or decrease by 1 (negative counting).

[0144] Furthermore, if Figures 7 to 9 As shown, the counting mechanism 3 includes a mounting shaft 35, a connecting member 36, a units transmission gear 37, a tens transmission gear 38 and a second connecting shaft 39, the units transmission gear 37 and the tens transmission gear 38 are coaxially connected through the second connecting shaft 39, and there is no relative rotation between the units transmission gear 37 and the tens transmission gear 38. The tens transmission gear 38 is meshed with the counting gear 34, and the units transmission gear 37, the tens transmission gear 38 and the counting gear 34 have the same number of teeth. One end of the connecting member 36 is fixed to the mounting shaft 35, and the other end is fixed to the second connecting shaft 39, and the mounting shaft 35 is fixed to the housing of the quantitative atomization device 100. When the single-tooth cam 33 rotates to the tenth time, the single-tooth cam 33 is meshed with the units transmission gear 37, so that the single-tooth cam 33 can drive the units transmission gear 37 to rotate together with the tens transmission gear 38, and the tens transmission gear 38 drives the counting gear 34 to drive the tens disk 322 to rotate.

[0145] Furthermore, if Fig. 9 As shown, the ones disk 321 and the tens disk 322 jointly form a cavity, the single-tooth cam 33, the counting gear 34, the connecting piece 36, the ones transmission gear 37, the tens transmission gear 38 and the second connecting shaft 39 are all located in the cavity, the mounting shaft 35 passes through the ones disk 321 and the tens disk 322, the ones disk 321 and the tens disk 322 are respectively rotatably connected to the mounting shaft 35, and one end of the mounting shaft 35 is fixed on the cover body 7.

[0146] Furthermore, if Fig. 9As shown, the diameters of the ones disk 321 and the tens disk 322 are equal to save space. Of course, the diameters of the ones disk 321 and the tens disk 322 may also be unequal.

[0147] It should be understood that the counting times of the counting mechanism 3 is not limited to two digits, and more digits can be counted by adding gears.

[0148] In one embodiment, if Figure 2 and Figure 8 As shown, the tens disk 322 is provided with a second limiting structure 3221, such as Fig.11 As shown, the cover body 7 is provided with a third limiting structure 73. When the counting times of the counting mechanism 3 reaches a preset value, the third limiting structure 73 cooperates with the second limiting structure 3221 to limit the tens disk 322 from continuing to rotate, so as to lock the counting mechanism 3.

[0149] Furthermore, if Figure 8 and Fig.11 As shown, the second limiting structure 3221 and the third limiting structure 73 are both convex structures. When the counting times of the counting mechanism 3 reaches a preset value, the third limiting structure 73 circumferentially abuts against the second limiting structure 3221, thereby limiting the tens disk 322 from continuing to rotate.

[0150] In one embodiment, if Figure 2 , Figure 3 and Figure 7 As shown, a first pusher 351 is disposed at one end of the mounting shaft 35. The first pusher 351 is used to drive the actuator 41 to engage with the gear 42 when the nozzle 1 rotates to the first position. Fig.13 As shown, the first pusher 351 is arranged on the mounting shaft 35, making full use of the axial space between the counting mechanism 3 and the third pusher 6, saving space. It should be understood that the impact force of the third pusher 6 on the first pusher 351 is not enough to cause the mounting shaft 35 to rotate, thereby avoiding affecting the counting.

[0151] In one embodiment, if Figure 1 , Fig.12 and Fig.14 As shown, the bag valve assembly 2 further includes a tank body 22, a bag body 23, a valve body 24 and a metering chamber 25. The tank body 22 is used to contain compressed gas, the bag body 23 is located in the tank body 22 and is used to contain liquid, one end of the valve body 24 is inserted into the bag body 23, the metering chamber 25 is connected to the valve body 24 and the two are in communication, and one end of the valve core 21 is inserted into the valve body 24. Fig.12 and Fig.14 As shown, when the quantitative atomization device 100 is in the initial state, the outer wall of the valve core 21 closes the connection between the bag body 23 and the valve body 24, so that the liquid in the bag body 23 cannot enter the valve body 24, and further cannot enter the metering chamber 25. Fig.15 and Fig.17 As shown, when the valve core 21 rotates to the liquid inlet position, the bag body 23, the valve core 21 and the metering chamber 25 are connected in sequence, so that the liquid in the bag body 23 enters the metering chamber 25 through the valve body 24 under the pressure of the compressed gas. Fig.18 As shown, when the valve core 21 is reset to trigger atomization, the valve core 21 is in the initial position, the metering chamber 25 is connected to the valve core 21, and the liquid in the metering chamber 25 enters the valve core 21 and is atomized and sprayed out. In addition, the outer wall of the valve core 21 closes the connection between the bag body 23 and the valve body 24 to ensure that the liquid in the bag body 23 will not enter the metering chamber 25 during the atomization process.

[0152] Furthermore, if Fig.14 As shown, the end of the valve body 24 inserted into the bag body 23 is provided with a first through hole 241 extending axially, the metering chamber 25 is provided with a second through hole 251, the second through hole 251 is connected to the chamber of the valve body 24, and the end of the valve core 21 inserted into the valve body 24 is provided with a concave cavity 211 and a third through hole 212.

[0153] like Fig.14 As shown, when the metered-quantity atomization device 100 is in the initial state, the outer wall of the valve core 21 closes the first through hole 241 .

[0154] like Fig.17 As shown, when the valve core 21 rotates to the liquid inlet position, the second through hole 251, the concave cavity 211 and the first through hole 241 are connected in sequence to form a liquid inlet channel, and the liquid in the bag body 23 enters the concave cavity 211 through the first through hole 241, and then enters the metering bin 25 through the second through hole 251. At this time, the inner wall of the third through hole 212 of the valve body 24 is closed.

[0155] like Fig.18 As shown, when the valve core 21 is reset (restored to the initial position) to trigger atomization, the second through hole 251 and the third through hole 212 are connected to form a liquid outlet channel, and the liquid in the metering chamber 25 passes through the second through hole 251 and the third through hole 212 in turn and enters the chamber of the valve core 21 to be sprayed out in the form of atomization.

[0156] Furthermore, if Fig.14 and Fig.17As shown, the metering bin 25 includes a first partition plate 252, a second partition plate 253, a quantitative plate 257, an elastic member 258 and an air pressure balance channel 259, wherein the first partition plate 252 is provided with a fourth through hole 2521, and the second partition plate 253 is provided with a fifth through hole 2531. The first partition plate 252 and the second partition plate 253 are sequentially distributed along the direction toward the connection point between the metering bin 25 and the valve body 24, and separate the metering bin 25 to form a first chamber 254, a second chamber 255 and a third chamber 256. The quantitative plate 257 is movably located in the second chamber 255, and the peripheral side wall of the quantitative plate 257 abuts against the inner wall of the second chamber 255. The elastic member 258 is a spring, one end of which is connected to the cavity wall of the first chamber 254, and the other end is connected to the quantitative plate 257. The air pressure balance channel 259 is connected to the first chamber 254 and the outside respectively. The air pressure balance channel 259 is used to balance the internal and external air pressure of the space on the side of the quantitative plate 257 facing the elastic member 258 during the liquid intake and atomization process, so that the quantitative plate 257 can move back and forth smoothly.

[0157] like Fig.14 As shown, when the quantitative atomization device 100 is in the initial state, the elastic member 258 passes through the fourth through hole 2521 and presses the quantitative plate 257 against the second partition plate 253 , and the quantitative plate 257 closes the fifth through hole 2531 of the second partition plate 253 .

[0158] like Fig.17 As shown, when the quantitative atomization device 100 is in a liquid filling state, the liquid in the bag body 23 flows into the metering chamber 25 through the liquid inlet channel under the squeeze of the compressed gas in the tank body 22, and the liquid pushes the quantitative plate 257 to move toward the first partition 252 and the elastic member 258 is compressed until the quantitative plate 257 abuts against the first partition 252, completing the liquid filling. During this process, the air in the space on the side of the quantitative plate 257 toward the elastic member 258 is discharged to the outside through the air pressure balance channel 259.

[0159] like Fig.18 As shown, when the quantitative atomization device 100 is in the atomization state, the elastic member 258 rebounds and pushes the quantitative plate 257 to move toward the second partition 253, squeezing the liquid in the metering chamber 25 into the valve core 21 until the quantitative plate 257 abuts against the second partition 253 to complete the atomization. During this process, the outside air enters the space on the side of the quantitative plate 257 facing the elastic member 258 through the air pressure balance channel 259. The volume of the space of the second chamber 255 between the first partition 252 and the second partition 253 corresponds to the liquid inlet amount and the atomization amount. The space size of the second chamber 255 is adjusted to match different drug delivery requirements.

[0160] Furthermore, a filter element (not shown in the figure) is provided at the connection point between the air pressure balance channel 259 and the atmosphere to filter the air from the outside entering the air pressure balance channel 259 to prevent impurities from entering the metering bin 25 and affecting the movement of the quantitative plate 257.

[0161] It should be understood that the pressure in the tank body 22 is greater than the pressure required for the quantitative plate 257 to move from the second partition 253 to the first partition 252, so as to facilitate the smooth liquid inlet.

[0162] It should be understood that before using the quantitative atomization device 100, it is necessary to repeat the liquid filling and atomization several times to exhaust the air in the valve core 21 and the metering chamber 25. This operation can be completed before leaving the factory or guided by the user after leaving the factory.

[0163] It should be understood that after the liquid is filled, the second chamber 255 and the third chamber 256 are filled with liquid, and the volume of the liquid sprayed during atomization is equal to the volume of the liquid in the second chamber 255. Therefore, after the atomization is completed, the liquid in the third chamber 256 at least partially remains in the valve core 21. After multiple liquid fillings and atomizations, when the quantitative atomization device 100 is in the initial state, the liquid level in the valve core 21 is equal to the liquid level in the third chamber 256, and the residual liquid in the valve core 21 maintains a stable liquid level.

[0164] In the above technical solution, the overall structure of the metering chamber 25 is simple, and it cooperates with the quantitative plate 257 through the elastic member 258 to achieve instantaneous liquid inlet and instantaneous atomization.

[0165] In one embodiment, if Figure 2 and Fig.13 As shown, the bag valve assembly 2 includes an atomization chip 26, which is sealed and connected to the outlet of the valve core 21 to convert the liquid sprayed by the valve core 21 into atomized particles.

[0166] In one embodiment, if Figure 1 and Fig.12 As shown, the bag valve assembly 2 includes a valve seat 27, the opening ends of the bag body 23 and the tank body 22 are respectively sealed and connected to the valve seat 27, and one end of the valve body 24 facing the mouthpiece 1 is connected to the valve seat 27. Further, the cover body 7 is covered on the periphery of the valve seat 27, and the mouthpiece 1 is rotatably connected to the cover body 7 to conceal the assembly structure of the bag valve assembly 2 and the valve seat 27, the counting mechanism 3, the first trigger mechanism 4 and the button member 51, thereby improving the appearance of the quantitative atomization device 100.

[0167] It should be understood that the above embodiments are exemplary and are not intended to include all possible implementations included in the claims. Various modifications and changes may be made on the basis of the above embodiments without departing from the scope of the present disclosure. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form other embodiments of the present invention that may not be explicitly described. Therefore, the above embodiments only express several implementations of the present invention and do not limit the scope of protection of the patent of the present invention.

Claims

1. A quantitative atomization device, characterized in that: The quantitative atomization device (100) comprises: Suction nozzle (1); A bag valve assembly (2) for storing liquid and quantitatively spraying atomized particles and comprising a valve core (21); A counting mechanism (3) for counting the number of atomization times of the bag valve assembly (2); A first trigger mechanism (4), comprising an actuating member (41), a gear (42) and a first resetting elastic member (43), wherein the actuating member (41) is rotatably connected to the suction nozzle (1), and the valve core (21) is connected to the gear (42); A second trigger mechanism (5), comprising a button member (51) and a limit member (52) connected to each other; Wherein, when the quantitative atomization device (100) is in an initial state, the actuating member (41) and the gear (42) are in a separated state; When an external force rotates the suction nozzle (1) to a first position, the actuating member (41) moves along with the suction nozzle (1) to mesh with the gear (42); when the suction nozzle (1) continues to rotate to a second position, the suction nozzle (1) drives the gear (42) to rotate through the actuating member (41) to trigger counting, and the first reset elastic member (43) is compressed, and the gear (42) drives the valve core (21) to rotate to a liquid inlet position to trigger liquid inlet, and the gear (42) rotates to a limit position at the limit member (52) and stops, and the actuating member (41) rotates to disengage from the gear (42); When an external force presses the button member (51), the limiting member (52) moves, and under the rebound force of the first reset elastic member (42), the gear (42) disengages from the limiting member (52) and drives the valve core (21) to reset, thereby triggering atomization.

2. The quantitative atomization device according to claim 1, characterized in that: The suction nozzle (1) rotates 180° to a first position, and further rotates 180° to a second position.

3. The quantitative atomization device according to claim 1, characterized in that: The counting mechanism (3) comprises a first pushing member (351), and when the suction nozzle (1) rotates to the first position, the actuating member (41) directly or indirectly hits the first pushing member (351) and rotates to engage with the gear (42); and / or, The second trigger mechanism (5) comprises a second pushing member (53), and when the suction nozzle (1) rotates to the second position, the actuating member (41) directly or indirectly hits the second pushing member (53) and reverses to disengage from the gear (42).

4. The quantitative atomization device according to claim 3, characterized in that: The quantitative atomization device (100) comprises a third pusher (6) which is rotatably connected to the mouthpiece (1); When the suction nozzle (1) rotates to the first position, the third pushing member (6) hits the first pushing member (351), and the third pushing member (6) rotates and pushes the actuating member (41) to rotate so as to engage with the gear (42); and / or, When the suction nozzle (1) rotates to the second position, the third pushing member (6) hits the second pushing member (53), and the third pushing member (6) rotates and pushes the actuating member (41) to rotate so as to disengage from the gear (42).

5. The quantitative atomization device according to claim 4, characterized in that: The suction nozzle (1) is provided with a fixed plate (11), and the actuating member (41) and the third pushing member (6) are respectively rotatably connected to the fixed plate (11); the first trigger mechanism (4) comprises a third reset elastic member (46), and two ends of the third reset elastic member (46) are respectively connected to the fixed plate (11) and the actuating member (41).

6. The quantitative atomization device according to claim 5, characterized in that: The third pushing member (6) comprises a pushing block (61), a first connecting shaft (62) and an actuating block (63), wherein the first connecting shaft (62) is rotatably connected to the fixing plate (11), the pushing block (61) is located on one side of the actuating member (41), and the cross section of the pushing block (61) is a non-circular shape; When the actuating block (63) strikes the first pushing member (351) or strikes the second pushing member (53), the actuating block (63) drives the pushing block (61) to rotate in a certain direction, so as to push the actuating member (41).

7. The quantitative atomization device according to claim 6, characterized in that: The cross section of the pushing block (61) is triangular.

8. The quantitative atomization device according to any one of claims 1 to 7, characterized in that: The first trigger mechanism (4) further comprises a mounting plate (44) and a trigger assembly (45), wherein the mounting plate (44) is coaxially connected to the gear (42), the trigger assembly (45) is arranged on the mounting plate (44), and the counting mechanism (3) is at least partially inserted between the gear (42) and the mounting plate (44); When the gear (42) drives the trigger component (45) to move via the mounting plate (44), the trigger component (45) triggers the counting mechanism (3) to perform counting.

9. The quantitative atomization device according to claim 8, characterized in that: The trigger assembly (45) comprises a ratchet (451), and the counting mechanism (3) comprises a ratchet wheel (31) and a counting disk (32) which are coaxially connected; When the suction nozzle (1) rotates from the first position to the second position, the mounting plate (44) rotates along with the gear (42), and the pawl (451) moves to mesh with the ratchet wheel (31) and drives the ratchet wheel (31) to drive the counting disk (32) to rotate, thereby realizing counting.

10. The quantitative atomization device according to claim 9, characterized in that: The trigger assembly (45) further comprises a limiting elastic member (452), a first limiting column (453) and a second limiting column (454); the pawl (451) and the limiting elastic member (452) are respectively rotatably connected to the mounting plate (44); and the second limiting column (454) is used to limit the limiting elastic member (452); When the pawl (451) moves to the counting trigger position, the pawl (451) is engaged with the ratchet wheel (31) under the limit of the first limit column (453); When the ratchet pawl (451) is reset, under the elastic cooperation of the limiting elastic member (452), the ratchet pawl (451) jumps along the tooth surface of the ratchet wheel (31) and disengages from the ratchet wheel (31).

11. The quantitative atomization device according to claim 8, characterized in that: The gear (42) and / or the mounting plate (44) is provided with a first limiting structure (441), which cooperates with the limiting member (52) to limit the stop position of the gear (42).

12. The quantitative atomization device according to claim 11, characterized in that: The quantitative atomization device (100) comprises a cover body (7) provided with a chamber (71), and the button member (51) is movably connected to the chamber (71); the second trigger mechanism (5) further comprises a second resetting elastic member (54), two ends of which are respectively connected to the inner wall of the chamber (71) and the button member (51).

13. The quantitative atomization device according to claim 12, characterized in that: The first limiting structure (441) and the limiting member (52) are both convex structures; When the suction nozzle (1) rotates to the second position, the first limiting structure (441) moves to circumferentially abut against one side of the limiting member (52), and under the elastic cooperation of the second reset elastic member (54), the limiting member (52) moves radially away from the mounting plate (44) so ​​that the first limiting structure (441) passes over the limiting member (52), and the limiting member (52) prevents the first limiting structure (441) from reversing under the rebound of the first reset elastic member (43).

14. The quantitative atomization device according to claim 8, characterized in that: The limiting member (52) is at least partially inserted between the gear (42) and the mounting plate (44).

15. The quantitative atomization device according to claim 14, characterized in that: When the quantitative atomization device (100) is in an initial state, the second trigger mechanism (5), the trigger assembly (45) and the counting mechanism (3) are sequentially arranged at intervals of 90° along the circumference of the gear (42).

16. The quantitative atomization device according to claim 8, characterized in that: The gear (42) is an external gear (42); the actuating member (41) is a rod-shaped structure, one end of which can mesh with the gear (42).

17. The quantitative atomization device according to claim 8, characterized in that: The first resetting elastic member (43) is a planar spring, which is coaxially connected to the gear (42) or the mounting plate (44); When the actuating member (41) drives the gear (42) to rotate, the first resetting elastic member (43) is compressed toward the axis; When an external force presses the button member (51), the first resetting elastic member (43) rebounds.

18. The quantitative atomization device according to claim 8, characterized in that: The quantitative atomization device (100) comprises a cover body (7), which together with the suction nozzle (1) forms a cavity, and the first trigger mechanism (4) is located in the cavity; the cover body (7) is provided with a limiting protrusion (72), and the mounting plate (44) is provided with an arc-shaped limiting hole (442), and the limiting protrusion (72) can be movably inserted into the limiting hole (442) to limit the rotation angle of the mounting plate (44).

19. The quantitative atomization device according to claim 9, characterized in that: The counting disk (32) comprises a ones disk (321) and a tens disk (322), and the ratchet wheel (31) is coaxially connected to the ones disk (321); when the ones disk (321) rotates ten times, the tens disk (322) rotates once.

20. The quantitative atomization device according to claim 19, characterized in that: The counting mechanism (3) comprises a single-tooth cam (33) and a counting gear (34); the single-tooth cam (33) is coaxially connected to the ones disk (321), and the counting gear (34) is coaxially connected to the tens disk (322); When the single-tooth cam (33) rotates together with the ones disk (321) for the tenth time, it drives the counting gear (34) to drive the tens disk (322) to rotate once.

21. The quantitative atomization device according to claim 20, characterized in that: The counting mechanism (3) comprises a mounting shaft (35), a connecting member (36), a units transmission gear (37), a tens transmission gear (38) and a second connecting shaft (39); the units transmission gear (37) and the tens transmission gear (38) are coaxially connected via the second connecting shaft (39); one end of the connecting member (36) is fixed to the mounting shaft (35) and the other end is fixed to the second connecting shaft (39); the mounting shaft (35) is fixed to the housing of the quantitative atomization device (100); The tens transmission gear (38) is meshed with the counting gear (34); and when the single-tooth cam (33) rotates to the tenth time, it is meshed with the ones transmission gear (37).

22. The quantitative atomization device according to claim 20, characterized in that: A first pushing member (351) is provided at one end of the mounting shaft (35), and the first pushing member (351) is used to drive the actuating member (41) to engage with the gear (42) when the suction nozzle (1) rotates to a first position.

23. The quantitative atomization device according to claim 20, characterized in that: The tens disk (322) is provided with a second limiting structure (3221), and the cover body (7) of the quantitative atomization device (100) is provided with a third limiting structure (73); When the number of times counted by the counting mechanism (3) reaches a preset value, the third limiting structure (73) cooperates with the second limiting structure (3221) to limit the tens disk (322) from continuing to rotate.

24. The quantitative atomization device according to any one of claims 1 to 7, characterized in that: The bag valve assembly (2) further comprises: A tank (22) for containing compressed gas; A bag body (23) located in the tank body (13) and used for containing liquid; A valve body (24), one end of which is inserted into the bag body (23); A metering bin (25), which is connected to the valve body (24) and the two are in communication; Wherein, one end of the valve core (21) is inserted into the valve body (24); When the quantitative atomization device (100) is in an initial state, the outer wall of the valve core (21) closes the connection between the bag body (23) and the valve body (24); When the valve core (21) rotates to the liquid inlet position, the bag body (23) and the metering chamber (25) are connected through the valve core (21), and the liquid in the bag body (23) enters the metering chamber (25) under the pressure of the compressed gas; When the valve core (21) is reset to trigger atomization, the metering chamber (25) is connected to the valve core (21), and the liquid in the metering chamber (25) enters the valve core (21) and is sprayed out in the form of atomization.

25. The quantitative atomization device according to claim 24, characterized in that: The end of the valve body (24) inserted into the bag body (23) is provided with a first through hole (241) extending in the axial direction, the metering chamber (25) is provided with a second through hole (251), the second through hole (251) is communicated with the chamber of the valve body (24), and the end of the valve core (21) inserted into the valve body (24) is provided with a concave cavity (211) and a third through hole (212); When the quantitative atomization device (100) is in an initial state, the outer wall of the valve core (21) closes the first through hole (241); When the valve core (21) rotates to the liquid inlet position, the second through hole (251), the concave cavity (211) and the first through hole (241) are connected in sequence to form a liquid inlet channel; When the valve core (21) is reset to trigger atomization, the second through hole (251) and the third through hole (212) are connected to form a liquid outlet channel.

26. The quantitative atomization device according to claim 24, characterized in that: The metering bin (25) comprises: A first partition plate (252) having a fourth through hole (2521); a second partition (253) having a fifth through hole (2531); the first partition (252) and the second partition (253) are sequentially distributed along a direction toward a connection point between the metering bin (25) and the valve body (24), and separate the metering bin (25) to form a first chamber (254), a second chamber (255) and a third chamber (256); A quantitative plate (257) is movably located in the second chamber (255), and a peripheral side wall of the quantitative plate (257) abuts against an inner wall of the second chamber (255); an elastic member (258), one end of which is connected to the cavity wall of the first cavity (254), and the other end of which is connected to the quantitative plate (257); An air pressure balance channel (259) which is in communication with the first chamber (254) and the outside respectively; Wherein, when the quantitative atomization device (100) is in an initial state, the elastic member (258) passes through the fourth through hole (2521) and presses the quantitative plate (257) against the second partition plate (253).

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