Atomizing nozzle

Abstract

The invention relates to an atomizing nozzle, comprising: a housing provided with a mounting structure, a bottle opening of a container being detachably and hermetically connected with the mounting structure from the outside of the housing; the spraying mechanism comprises a liquid storage cavity and a nozzle; the first liquid guide part is connected with the liquid storage cavity; a first valve; when the mounting structure and the container are in a connected state, the first liquid guide piece is communicated with the container, and when the spraying mechanism sucks liquid, the first valve is opened, and the first liquid guide piece sucks the liquid from the container and conveys the liquid into the liquid storage cavity; when the spraying mechanism does not suck liquid, the first valve is closed; when the spraying mechanism sprays mist, liquid in the liquid storage cavity is sprayed out through the nozzle. According to the atomization spray head, liquid in the container can be distributed in the form of small-particle-size fog drops, dispersity is better, distribution is more uniform, liquid absorption is facilitated, use is convenient and fast, the liquid pollution probability can be reduced, and the situation that the spray dosage is inaccurate due to the fact that the liquid absorption amount in the liquid storage cavity is inaccurate can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an atomizing nozzle. Background Art

[0002] Currently, ophthalmic medications are mainly administered in the form of eye drops. Some liquids are packaged in plastic ampoules, which can extend the storage period, reduce the addition of preservatives, and are convenient to use. Each ampoule can be used multiple times within 24 hours and needs to be discarded after 24 hours. When a patient uses an ampoule eye drop preparation, they take a single ampoule, rotate to separate the ampoule cap from the bottle body, squeeze the liquid into the eyelid, and then fasten the ampoule cap for secondary sealing to briefly isolate the liquid from the outside air and prevent liquid contamination. However, opening and closing the ampoule cap multiple times cannot ensure that each sealing operation is in place, and it is easy to have improper sealing resulting in liquid contamination. Moreover, during the multiple opening processes, the liquid will come into contact with air multiple times, which is also prone to contamination. In addition, after the eye drops are dropped onto the eyelid, they quickly flow away from the eye surface, resulting in low drug bioavailability. Summary of the Invention

[0003] Based on the above defects in the prior art, the purpose of the present invention is to provide an atomizing nozzle, which can be used in cooperation with a container storing liquid and is equipped with a spraying mechanism that can distribute the liquid in the container in the form of fine droplets, with better dispersibility and more uniform distribution, which is beneficial to the absorption of the liquid. Moreover, through the provided installation structure for detachably and sealingly connecting with the bottle mouth of the container, the assembly is fast and the operation is simple, without the need for multiple secondary sealing of the container, reducing the probability of liquid contamination. Additionally, by setting a first valve to control the liquid suction volume of the spraying mechanism, it can avoid inaccurate spraying doses caused by inaccurate liquid suction volume in the liquid storage cavity.

[0004] For this reason, the present invention provides the following technical solutions.

[0005] The present invention provides an atomizing nozzle, which comprises:

[0006] A housing provided with an installation structure, and the bottle mouth of the container can be detachably and sealingly connected to the installation structure from the outside of the housing, and the container is used to store liquid;

[0007] A spraying mechanism including a liquid storage cavity and a nozzle;

[0008] A first liquid guiding member connected to the liquid storage cavity;

[0009] A first valve for making the first liquid guiding member in fluid communication or fluid cut-off with the liquid storage cavity;

[0010] Wherein, when the installation structure is in a connected state with the container, the first liquid guiding member is in communication with the container, and when the spraying mechanism sucks liquid, the first valve opens, and the first liquid guiding member sucks liquid from the container and transports it to the liquid storage cavity; when the spraying mechanism does not suck liquid, the first valve closes; when the spraying mechanism sprays, the liquid in the liquid storage cavity is ejected through the nozzle.

[0011] Optionally, the spraying mechanism and the first liquid guiding member are respectively installed in the housing.

[0012] Optionally, the installation structure is annular and is provided on the first outer side wall of the housing;

[0013] The installation structure gradually narrows in a direction away from the first outer side wall, and the installation structure is inserted into the bottle mouth of the container and the two are in interference fit.

[0014] Optionally, when the spraying mechanism sprays, the spraying mechanism simultaneously sucks liquid, and the liquid currently sucked by the spraying mechanism will not come into contact with the liquid currently used for spraying, and the liquid currently sucked by the spraying mechanism is for the next spraying use.

[0015] Optionally, the spraying mechanism includes a piston that is movably located in the liquid storage cavity;

[0016] During the movement of the piston in the liquid storage cavity, the piston divides the liquid storage cavity to form a first liquid storage chamber and a second liquid storage chamber; the first liquid guiding member is connected to the first liquid storage chamber through the first valve, and the second liquid storage chamber is in communication with the nozzle;

[0017] The liquid sucked by the first liquid guiding member from the container is transported to the first liquid storage chamber, the first liquid storage chamber transports the liquid to the second liquid storage chamber, and the liquid in the second liquid storage chamber is for the nozzle to eject;

[0018] When the spraying mechanism sprays, the first liquid storage chamber and the second liquid storage chamber are not in communication.

[0019] Optionally, the spraying mechanism includes a piston that is movably located in the liquid storage cavity; the liquid storage cavity includes a first cavity wall and a second cavity wall that are spaced apart in a direction away from the first liquid guiding member, and the first valve is provided on the first cavity wall;

[0020] When the piston is in the first extreme position, it abuts against the first cavity wall, and the first valve is in a closed state under the pressure of the piston;

[0021] When the piston moves towards the second chamber wall to trigger liquid suction, a first liquid storage chamber is formed between it and the first chamber wall, and the first liquid guiding member sucks liquid from the container. The first valve is opened under the extrusion of the liquid in the first liquid guiding member, and the liquid enters the first liquid storage chamber through the first valve.

[0022] Optionally, the spraying mechanism further includes a main body shell, and the liquid storage chamber is arranged on the main body shell;

[0023] A first liquid inlet hole is provided on the first chamber wall, and an assembly port is provided on the side wall of the main body shell facing the first liquid guiding member. The assembly port is communicated with the first liquid inlet hole; the first valve is installed in the first liquid inlet hole, and the liquid outlet end of the first liquid guiding member is connected to the assembly port.

[0024] Optionally, the number of the first liquid inlet holes, the assembly ports and the first valves is at least two, and the three are arranged in one-to-one matching; the first liquid guiding member has a plurality of branch pipes, and the branch pipes are arranged in one-to-one matching with the assembly ports;

[0025] The contour of the liquid storage chamber is cylindrical, and all the first liquid inlet holes are evenly spaced along the circumference of the liquid storage chamber.

[0026] Optionally, the spraying mechanism further includes a main body shell, and the liquid storage chamber is arranged on the main body shell; a hollow chamber is formed between the circumferential side wall of the main body shell and the inner wall of the outer shell. The circumferential side wall of the main body shell is provided with a liquid outlet hole and a second liquid inlet hole, and a second valve is installed in the second liquid inlet hole;

[0027] When the piston is in the first extreme position, a second liquid storage chamber is formed between it and the second chamber wall, and the second liquid storage chamber is communicated with the nozzle;

[0028] When the piston moves towards the second chamber wall to trigger liquid suction, the second valve is in a closed state under the extrusion of the piston. The first liquid storage chamber is filled with liquid, and part of the liquid it contains flows into the hollow chamber through the liquid outlet hole;

[0029] When the piston moves towards the first chamber wall, the first valve is closed under the extrusion of the liquid in the first liquid storage chamber. The remaining liquid in the first liquid storage chamber flows into the hollow chamber through the liquid outlet hole, and drives the liquid in the hollow chamber to open the second valve and enter the second liquid storage chamber;

[0030] When the piston moves towards the second chamber wall to trigger spraying, the liquid in the second liquid storage chamber is extruded by the piston and sprayed out through the nozzle. At the same time, the first liquid guiding member sucks liquid from the container and transports it to the first liquid storage chamber.

[0031] Optionally, before the first use of the atomizing nozzle, there is no liquid in the hollow chamber and the second liquid storage chamber;

[0032] And / or, when the liquid inlet of the first liquid storage chamber is completed or the spraying mechanism finishes spraying, the piston abuts against the second chamber wall, and the piston is in the second limit position;

[0033] And / or, the liquid outlet hole is arranged close to the first chamber wall;

[0034] And / or, the second liquid inlet hole is arranged close to the second chamber wall;

[0035] And / or, the number of the liquid outlet holes is at least two;

[0036] And / or, the number of the second liquid inlet holes is at least two.

[0037] Optionally, the atomizing nozzle further includes a triggering mechanism, which includes an operating element; the spraying mechanism further includes a piston rod, the piston rod is connected to the piston, and the operating element is linked with the piston rod;

[0038] When the operating element moves along the first direction under an external force, the operating element can drive the piston rod to move towards the second chamber wall;

[0039] When the operating element moves along the second direction under an external force, the operating element can drive the piston rod to move towards the first chamber wall, and the first direction is opposite to the second direction.

[0040] Optionally, the rod end of the piston rod extends to the outside of the liquid storage chamber;

[0041] The triggering mechanism further includes a connecting rod, and two ends of the connecting rod are respectively pivotally connected to the operating element and the piston rod, and the operating element is linked with the piston rod through the connecting rod.

[0042] Optionally, the operating element is provided with a first pivotal connection portion, the rod end is provided with a second pivotal connection portion, and two ends of the connecting rod are respectively pivotally connected to the first pivotal connection portion and the second pivotal connection portion;

[0043] And / or, the number of the triggering mechanisms is at least two, and all the triggering mechanisms are evenly spaced apart circumferentially around the piston rod;

[0044] And / or, the triggering mechanism further includes an elastic element. When the operating element moves along the first direction under an external force, the elastic element is compressed by the operating element. When the external force is removed, the elastic element rebounds to drive the operating element to move along the second direction to the initial position;

[0045] And / or, an accommodation cavity is provided on the outer wall of the housing, the operating element is movably installed in the accommodation cavity, and one end of the connecting rod extends into the accommodation cavity to pivotally connect with the operating element;

[0046] And / or, the moving direction of the operating element is perpendicular to the moving direction of the piston rod.

[0047] Optionally, a first guiding structure is provided on the cavity wall of the liquid storage cavity, and a second guiding structure is provided on the outer wall of the piston; the first guiding structure and the second guiding structure are in sliding fit to guide the piston to perform linear motion;

[0048] And / or, the spraying mechanism further includes a main body shell, the liquid storage cavity is provided on the main body shell, the main body shell includes a first shell wall and a second shell wall which are spaced apart in a direction away from the first liquid guiding member, the first shell wall is inserted into the first liquid guiding member, and the second shell wall is inserted into the inner wall of the housing.

[0049] Optionally, the spraying mechanism further includes a main body shell, the liquid storage cavity is provided on the main body shell; the nozzle includes a valve core and an atomization chip, and the valve core is provided with a valve core channel;

[0050] A circular through hole is provided on the second shell wall of the main body shell facing away from the first liquid guiding member, a circular column is provided on the housing, and an air inlet hole is provided on the circular column; the outer circumferential wall of the valve core is in interference fit with the inner wall of the circular column, one end of the valve core is inserted into the circular through hole, and the atomization chip is installed at the port of one end of the valve core channel facing away from the main body shell.

[0051] Optionally, a first insertion groove is provided in the circular through hole, a first insertion protrusion is provided on the outer circumferential wall of the valve core, and the first insertion protrusion is inserted into the first insertion groove.

[0052] Optionally, the liquid inlet end of the first liquid guiding member is at least partially inserted into the installation structure and the two are in interference fit;

[0053] And / or, the atomizing nozzle further includes a second liquid guiding member, one end of the second liquid guiding member is inserted into the installation structure and the two are in interference fit, and the other end thereof extends to the outside of the housing for inserting into the container; when the spraying mechanism sucks liquid, the first liquid guiding member sucks liquid from the container through the second liquid guiding member.

[0054] The present invention has the following technical effects:

[0055] The present invention provides an atomizing nozzle, which can be used in cooperation with a container storing liquid and is equipped with a spraying mechanism. The spraying mechanism can distribute the liquid in the container in the form of fine droplets, with better dispersibility and more uniform distribution, which is beneficial to the absorption of the liquid. When the atomizing nozzle of this solution is applied to eye drops, compared with conventional medicinal eye drops, the eye liquid is applied to the eyes by spraying in this solution. The fully dispersed eye liquid covers the surface of the eyeball, and the eye liquid is more evenly distributed on the surface of the eyeball, which is more conducive to the absorption of the eye liquid and ensures the administration effect.

[0056] In addition, the atomizing nozzle of this solution is provided with an installation structure for assembling with the bottle mouth of the container. After opening the bottle cap of the container, it can be quickly assembled with the installation structure from the outside of the housing. The user can use the atomizing nozzle in cooperation with the container without disassembling it. The assembly is fast and the operation is simple. Moreover, before the number of uses of the container reaches the preset number, the container and the atomizing nozzle are always in an assembled state, avoiding multiple secondary seals of the container, preventing the liquid from contacting the air, and thus being able to avoid the liquid in the container being contaminated due to improper secondary sealing operation, ensuring the safety of using the liquid product.

[0057] In addition, the atomizing nozzle of this solution is provided with a first valve. The first valve opens when the spraying mechanism sucks liquid and closes when the spraying mechanism does not need to suck liquid, avoiding the first liquid guiding member from continuing to deliver liquid to the liquid storage cavity or preventing the liquid in the first liquid storage cavity from flowing back into the liquid storage cavity, controlling the liquid suction amount of the spraying mechanism, and avoiding inaccurate spraying dosage caused by inaccurate liquid suction amount in the liquid storage cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 is an exploded view of the structure of the atomizing nozzle of the present invention;

[0059] Figure 2 is a three-dimensional structural schematic diagram of the main body shell of the present invention Figure 1 ;

[0060] Figure 3 is a three-dimensional structural schematic diagram of the main body shell of the present invention Figure 2 ;

[0061] Figure 4 is a structural cross-sectional view of the main body shell of the present invention;

[0062] Figure 5 is a structural cross-sectional view of the housing of the present invention;

[0063] Figure 6 is a structural cross-sectional view of the atomizing nozzle of the present invention when the piston is in the first extreme position Figure 1 ;

[0064] Figure 7Structural sectional view of the atomizing nozzle when the piston is in the first extreme position of the present invention Figure 2 ;

[0065] Figure 8 Structural sectional view of the atomizing nozzle of the present invention when in the liquid inlet state or the atomizing state Figure 1 ;

[0066] Figure 9 is Figure 8 The enlarged view at position A in

[0067] Figure 10 Structural sectional view of the atomizing nozzle of the present invention when in the liquid inlet state or the atomizing state Figure 2 ;

[0068] Figure 11 Structural sectional view of the atomizing nozzle of the present invention during the metering process Figure 1 ;

[0069] Figure 12 Structural sectional view of the atomizing nozzle of the present invention during the metering process Figure 2 ;

[0070] Figure 13 Structural sectional view of the atomizing nozzle of the present invention when the liquid suction is completed or the spraying is completed Figure 1 ;

[0071] Figure 14 Structural sectional view of the atomizing nozzle of the present invention when the liquid suction is completed or the spraying is completed Figure 2 .

[0072] Explanation of reference numerals

[0073] 100, atomizing nozzle;

[0074] 1, outer shell; 11, mounting structure; 12, first outer wall; 13, accommodating cavity; 14, annular column; 141, air inlet hole; 15, second insertion projection

[0075] 2. Spray mechanism; 21. Main body shell; 211. Liquid storage cavity; 2111. First cavity wall; 21111. First liquid inlet hole; 2112. Second cavity wall; 2113. First liquid storage chamber; 2114. Second liquid storage chamber; 2115. First guiding structure; 212. Assembly port; 213. Liquid outlet hole; 214. Second liquid inlet hole; 215. First shell wall; 216. Second shell wall; 2161. Ring-shaped through hole; 21611. First plugging groove; 2162. Second plugging groove; 217. Through hole; 22. Nozzle; 221. Valve core; 2211. Valve core channel; 2212. First plugging protrusion; 222. Atomization chip; 231. Piston; 2311. Second guiding structure; 232. Piston rod; 2321. Rod end; 2322. Second pivoting part;

[0076] 3. First liquid guiding part; 31. Branch pipe; 32. Liquid inlet end;

[0077] 41. First valve; 42. Second valve;

[0078] 5. Hollow cavity;

[0079] 6. Trigger mechanism; 61. Operating element; 611. First pivoting part; 612. Pressing part; 613. Mounting post; 62. Link; 63. Elastic element; 64. Pivoting shaft;

[0080] 7. Second liquid guiding part. Detailed implementation mode

[0081] In order to make the technical solutions and beneficial effects of the present invention more obvious and understandable, the following will be described in detail by listing specific embodiments. Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical and scientific fields to which this application belongs.

[0082] In the description of the present invention, unless otherwise clearly defined, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of simplifying the description of the present invention, rather than indicating that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, that is, it cannot be understood as a limitation of the present invention.

[0083] In the present invention, the terms "first" and "second" are only used for the purpose of clear description, and cannot be construed as the relative importance of the indicated features or the number of the indicated technical features. Therefore, the features defined with "first" and "second" may clearly include at least one of such features. In the description of the present invention, the meaning of "a plurality of" is at least two; the meaning of "several" is at least one; unless otherwise clearly defined.

[0084] In the present invention, unless otherwise clearly defined, the terms "mounted", "connected", "connected to", "fixed", "set", etc. shall be understood in a broad sense. For example, "connected" 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 directly connected or indirectly connected through an intermediate medium, and can also be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0085] In the present invention, unless otherwise clearly defined, the first feature being "on", "above", "over" and "upon", "under", "beneath", "below" or "underneath" the second feature may be that the first feature and the second feature are in direct contact, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "upon" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. The first feature being "under", "beneath", "below" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0086] The "first direction a" and "second direction b" mentioned in the present invention are both based on Figure 6 the indication in

[0087] Next, according to Figures 1 to 14 the atomizing nozzle of the present invention will be described in detail.

[0088] In the present embodiment, as Figure 1 , Figure 4 and Figure 7As shown, the atomizing nozzle 100 includes a housing 1, a spraying mechanism 2, a first liquid guiding member 3, and a first valve 41. The housing 1 is provided with a mounting structure 11. The mouth of a container (not shown in the figure) can be detachably and sealingly connected to the mounting structure 11 from the outside of the housing 1. The structure of the housing 1 is relatively simple, and the processing cost is not high. Moreover, the housing 1 has a certain structural strength. Setting the mounting structure 11 on the housing 1 is convenient for processing, beneficial to cost control, and ensures that the mounting structure 11 has good structural strength and can be stably used in cooperation with the container. Among them, the container is used to store liquid, and the container includes but is not limited to plastic ampoules, vials, and perfume bottles. The atomizing nozzle 100 can be applied to any product that requires atomizing liquid for use. The spraying mechanism 2 includes a liquid storage chamber 211 and a nozzle 22. The first liquid guiding member 3 is connected to the liquid storage chamber 211. The first valve 41 is used to make the first liquid guiding member 3 communicate or cut off fluid with the liquid storage chamber 211.

[0089] When the atomizing nozzle 100 is used in cooperation with the container, first open the cap of the container and assemble the mounting structure 11 of the atomizing nozzle 100 with the mouth of the container. When the mounting structure 11 is in a connected state with the container, the first liquid guiding member 3 communicates with the container. Moreover, when the spraying mechanism 2 sucks liquid, the first valve 41 opens, and the first liquid guiding member 3 sucks liquid from the container and transports it to the liquid storage chamber 211; when the spraying mechanism 2 does not suck liquid, the first valve 41 closes, and the first liquid guiding member 3 stops transporting liquid to the liquid storage chamber 211; when the spraying mechanism 2 sprays, the liquid in the liquid storage chamber 211 is ejected through the nozzle 22.

[0090] In the above technical solution, the atomizing nozzle 100 can be used in cooperation with a container storing liquid and is equipped with a spraying mechanism 2. During use, based on the pressure provided by the spraying mechanism 2, the liquid flowing at high speed in the spraying mechanism 2 passes through the nozzle and forms fine droplets after being ejected. When the atomizing nozzle 100 is used in cooperation with a container containing eye medicine, compared with conventional medicinal eye drops, in this solution, the eye medicine is applied to the eyes by spraying. The fully dispersed eye medicine covers the surface of the eyeball, and the eye medicine is more evenly distributed on the surface of the eyeball, which is more conducive to the absorption of the eye medicine and ensures the administration effect.

[0091] In addition, the mounting structure 11 provided on the atomizing nozzle 100 of this solution is used to assemble with the mouth of the container. After opening the cap of the container, it can be quickly assembled with the mounting structure 11 from the outside of the housing 1. The user can cooperate with the container without disassembling the atomizing nozzle 100. The assembly is fast and the operation is simple. Moreover, before the number of uses of the container reaches the preset number, the container and the atomizing nozzle 100 are always in an assembled state, avoiding multiple secondary seals of the container, avoiding contact between the liquid and air, and thus being able to avoid contamination of the liquid in the container caused by improper secondary sealing operation, ensuring the use safety of the liquid product.

[0092] In addition, the atomizing nozzle 100 of this solution is provided with a first valve 41. When the spraying mechanism 2 sucks liquid, the first valve 41 is opened. When the spraying mechanism 2 does not need to suck liquid, the first valve 41 is closed, so as to prevent the first liquid guiding member 3 from continuing to deliver liquid to the liquid storage cavity 211, or to prevent the liquid in the first liquid storage chamber 2113 from flowing back into the liquid storage cavity 211, control the liquid suction amount of the spraying mechanism 2, and avoid inaccurate spraying doses caused by inaccurate liquid suction amounts in the liquid storage cavity 211.

[0093] In one embodiment, as Figure 6 and Figure 7 shown, the spraying mechanism 2 and the first liquid guiding member 3 are respectively installed in the housing 1. Specifically, by providing the housing 1, on the one hand, it plays a protective role for the spraying mechanism 2 and the first liquid guiding member 3 to prevent damage, and on the other hand, it can also improve the aesthetic appearance of the atomizing nozzle 100. In addition, the structure of the housing 1 is relatively simple, the processing cost is not high, and the housing 1 has a certain structural strength. The installation structure 11 is provided on the housing 1, which is convenient for processing, conducive to cost control, ensures that the installation structure 11 has good structural strength, and can stably cooperate with the container.

[0094] In one embodiment, as Figure 5 shown, the installation structure 11 is annular, and the specific structure of the installation structure 11 can be adjusted according to the shape of the mouth of the container. For example, if the outer contour of the cross-section of the mouth of the container is circular, the installation structure 11 is circular; if the outer contour of the cross-section of the mouth of the container is square, the installation structure 11 is square-ring-shaped. Of course, the outer circumferential contour and the inner circumferential contour of the installation structure 11 can be the same or different. The installation structure 11 is provided on the first outer side wall 12 of the housing 1, which is convenient for users to check the assembly situation between the installation structure 11 and the mouth of the container to ensure that the assembly is in place. In addition, the installation structure 11 gradually narrows in the direction away from the first outer side wall 12. The installation structure 11 is inserted into the mouth of the container and the two are in interference fit. The installation structure 11 has a simple structure, and its assembly operation with the container is convenient. Through the interference fit between the two, the sealing performance between the two is ensured. In a specific embodiment, the container is a plastic ampoule, and the plastic ampoule has a certain deformation ability. The plastic ampoule is slightly contracted inward by being squeezed by the installation structure 11 to further improve the sealing performance between the two.

[0095] In one embodiment, when the spraying mechanism 2 sprays, the spraying mechanism 2 simultaneously sucks liquid, which can shorten the time required for one use, improve the liquid distribution efficiency, and the liquid currently sucked by the spraying mechanism 2 will not contact the liquid currently used for spraying. The liquid currently sucked by the spraying mechanism 2 is used for the next spraying to avoid affecting the spraying dose.

[0096] Furthermore, asFigure 1 , Figures 6 to 14 As shown, the spraying mechanism 2 includes a piston 231 which is movably located in the liquid storage chamber 211. As Figures 8 to 10 shown, during the movement of the piston 231 in the liquid storage chamber 211, due to the change in the position of the piston 231, the piston 231 divides the liquid storage chamber 211 to form a first liquid storage chamber 2113 and a second liquid storage chamber 2114. The first liquid guiding member 3 is connected to the first liquid storage chamber 2113 through a first valve 41, and the second liquid storage chamber 2114 is communicated with the nozzle 22. When the spraying mechanism 2 sucks liquid, the liquid sucked by the first liquid guiding member 3 from the container is delivered to the first liquid storage chamber 2113. Before spraying, the liquid in the first liquid storage chamber 2113 is delivered to the second liquid storage chamber 2114. When the spraying mechanism 2 sprays, the first liquid storage chamber 2113 stops delivering liquid to the second liquid storage chamber 2114, and the liquid in the second liquid storage chamber 2114 is used for the nozzle 22 to spray. And, when the spraying mechanism 2 sprays, the first liquid storage chamber 2113 is not communicated with the second liquid storage chamber 2114. In this way, the liquid currently sucked by the spraying mechanism 2 will not contact the liquid currently used for spraying. That is, during the process of the liquid in the second liquid storage chamber 2114 being ejected through the nozzle 22, the first liquid guiding member 3 is also delivering liquid to the first liquid storage chamber 2113. However, the liquid sucked by the first liquid storage chamber 2113 will not enter the second liquid storage chamber 2114 so as not to affect the current spraying dose. At this time, the liquid sucked by the first liquid storage chamber 2113 is used for the next spraying.

[0097] In one embodiment, as Figure 4 , Figure 9 and Figure 10 shown, the liquid storage chamber 211 includes a first chamber wall 2111 and a second chamber wall 2112 which are spaced apart along the direction away from the first liquid guiding member 3, and the first valve 41 is provided on the first chamber wall 2111.

[0098] As Figure 4 , Figure 6 and Figure 7 shown, when the piston 231 is in the first limit position, the piston 231 abuts against the first chamber wall 2111, and the piston 231 also presses against the first valve 41 provided on the first chamber wall 2111 so that the first valve 41 is in a closed state. The first limit position is also the initial position of the piston 231. As Figures 8 to 10As shown, when the piston 231 moves towards the second chamber wall 2112 to trigger liquid suction, a first liquid storage chamber 2113 is formed between the piston 231 and the first chamber wall 2111. And as the piston 231 moves, the space of the first liquid storage chamber 2113 gradually becomes larger, and the first liquid storage chamber 2113 is in a negative pressure condition, thereby causing the first liquid guiding member 3 to suck liquid from the container. At the same time, the first valve 41 is opened under the extrusion of the liquid in the first liquid guiding member 3, and the liquid in the first liquid guiding member 3 enters the first liquid storage chamber 2113 through the first valve 41, realizing liquid suction. In this solution, by limiting the distance that the piston 231 moves towards the second chamber wall 2112, the single liquid suction amount of the spraying mechanism 2 can be limited. It should be understood that the single liquid suction amount of the spraying mechanism 2 refers to the total amount of liquid delivered by the first liquid guiding member 3 to the first liquid storage chamber 2113 when the piston 231 completes one movement towards the second chamber wall 2112.

[0099] Further, as Figures 2 to 4 、 Figure 7 shown, the spraying mechanism 2 further includes a main body case 21, and the liquid storage chamber 211 is arranged on the main body case 21. A first liquid inlet hole 21111 is provided on the first chamber wall 2111, and an assembly port 212 is provided on the side wall of the main body case 21 facing the first liquid guiding member 3. The assembly port 212 and the first liquid inlet hole 21111 are sequentially distributed along the direction towards the liquid storage chamber 211, and the assembly port 212 is communicated with the first liquid inlet hole 21111. The first valve 41 is installed in the first liquid inlet hole 21111, and the liquid outlet end of the first liquid guiding member 3 is connected to the assembly port 212.

[0100] Further, as Figure 1 、 Figure 3 、 Figure 4 and Figure 7 shown, the number of the first liquid inlet holes 21111, the assembly ports 212 and the first valves 41 is two, and the three are arranged in one-to-one correspondence; the first liquid guiding member 3 has two branch pipes 31, and the branch pipes 31 are arranged in one-to-one correspondence with the assembly ports 212. In this way, the two groups of branch pipes 31 and the two first liquid inlet holes 21111 are respectively matched to form two flow channels, and the two flow channels simultaneously deliver liquid to the first liquid storage chamber 2113, which is beneficial to improving the liquid suction speed. The contour of the liquid storage chamber 211 is cylindrical, and all the first liquid inlet holes 21111 are evenly spaced along the circumferential direction of the liquid storage chamber 211, avoiding or reducing interference during the process of the two flow channels delivering liquid to the first liquid storage chamber 2113, which is beneficial to accelerating the liquid suction of the spraying mechanism 2. It should be understood that the number of the first liquid inlet holes 21111, the assembly ports 212, the first valves 41 and the branch pipes 31 is not limited to two, and can also be one, three or even more. Preferably, considering the space limitation of the main body case 21, the number of the first liquid inlet holes 21111, the assembly ports 212, the first valves 41 and the branch pipes 31 is two.

[0101] In one embodiment, as Figure 6 and Figure 7 shown, a hollow chamber 5 is formed between the circumferential outer wall of the main body housing 21 and the inner wall of the outer housing 1. The circumferential outer wall of the main body housing 21 is provided with a liquid outlet hole 213 and a second liquid inlet hole 214, and a second valve 42 is installed at the second liquid inlet hole 214. Before the atomizing nozzle 100 is used for the first time, the piston 231 is in the first extreme position, and a second liquid storage chamber 2114 is formed between the piston 231 and the second chamber wall 2112. The second liquid storage chamber 2114 communicates with the nozzle 22.

[0102] As Figure 4 、 Figures 8 to 10 shown, when the piston 231 moves towards the second chamber wall 2112 to trigger liquid suction, the first valve 41 opens, and the second valve 42 is in a closed state under the extrusion of the piston 231. And, under the negative pressure condition of the first liquid storage chamber 2113, the first liquid storage chamber 2113 starts to intake liquid. At this time, since the liquid outlet hole 213 is provided on the main body housing 21, during the process of the gradually increasing space of the first liquid storage chamber 2113, the first liquid storage chamber 2113 communicates with the liquid outlet hole 213, and part of the liquid contained in the first liquid storage chamber 2113 flows into the hollow chamber 5 through the liquid outlet hole 213, and the spraying mechanism 2 realizes liquid suction. In this solution, by adjusting the distance that the piston 231 moves towards the second chamber wall 2112 when the spraying mechanism 2 sucks liquid, the single liquid intake volume of the spraying mechanism 2 can be adjusted. It should be understood that the position of the piston 231 of this solution changes due to its movement in the liquid storage chamber 211, thereby forming a first liquid storage chamber 2113 and / or a second liquid storage chamber 2114 in the liquid storage chamber 211. Among them, the first liquid storage chamber 2113 is used to store the liquid conveyed by the first liquid guiding member 3, and the second liquid storage chamber 2114 is used to store the liquid to be conveyed to the nozzle 22.

[0103] As Figure 4 、 Figure 11 and Figure 12 shown, when the spraying mechanism 2 finishes sucking liquid and the piston 231 moves towards the first chamber wall 2111, the first valve 41 closes under the extrusion of the liquid in the first liquid storage chamber 2113, and the first liquid guiding member 3 stops conveying liquid to the first liquid storage chamber 2113. And, the remaining liquid in the first liquid storage chamber 2113 is extruded by the piston 231 and flows into the hollow chamber 5 through the liquid outlet hole 213. As the liquid in the hollow chamber 5 increases, the liquid in the hollow chamber 5 starts to extrude the second valve 42. And, at this time, the piston 231 moves away from the second valve 42, as Figure 11As shown, after the second valve 42 is disengaged from the extrusion of the piston 231, it gradually opens under the extrusion of the liquid in the hollow chamber 5. Then, the liquid in the hollow chamber 5 enters the second liquid storage chamber 2114 through the second valve 42, causing the liquid delivered by the first liquid guiding member 3 to the first liquid storage chamber 2113 to flow into the hollow chamber 5 and the second liquid storage chamber 2114 until the piston 231 abuts against the first chamber wall 2111. At this time, the second liquid storage chamber 2114 is filled with the liquid to be atomized. This process is the metering process of the spraying mechanism 2, that is, the metering process of the atomizing nozzle 100. The liquid inflow volume in the second liquid storage chamber 2114 is related to the spraying dose of the spraying mechanism 2. During the metering process, the first liquid guiding member 3 cannot deliver liquid to the first liquid storage chamber 2113 anymore, and the liquid in the first liquid storage chamber 2113 will not flow back into the first liquid guiding member 3 to ensure that the liquid inflow volume in the second liquid storage chamber 2114 can be accurate.

[0104] As Figure 4 , Figure 9 and Figure 10 shown, when the piston 231 moves towards the second chamber wall 2112 to trigger spraying, the liquid in the second liquid storage chamber 2114 is extruded by the piston 231 and ejected through the nozzle 22. By limiting the distance that the piston 231 moves towards the second chamber wall 2112 when the spraying mechanism 2 sprays, the spraying dose of the spraying mechanism 2 can be accurately controlled. In addition, during the spraying process, the first liquid guiding member 3 sucks liquid from the container and delivers it to the first liquid storage chamber 2113. Part of the liquid in the first liquid storage chamber 2113 enters the hollow chamber 5 through the liquid outlet hole 213. The spraying mechanism 2 of this solution can suck liquid while spraying during the spraying process, thereby shortening the time required for one use and improving the drug delivery efficiency. Moreover, under the extrusion of the moving piston 231, the second valve 42 closes, and the liquid in the hollow chamber 5 cannot enter the second liquid storage chamber 2114 anymore to avoid affecting the spraying dose. That is, the spraying mechanism 2 of this solution can realize spraying and liquid suction simultaneously, and spraying and liquid suction do not interfere with each other. The liquid sucked by the spraying mechanism 2 will not be used in the current spraying but will wait for the next spraying process to be used. Compared with the prior art in which users manually squeeze plastic ampoules for drug delivery, this solution can ensure the uniformity of the dose for each drug delivery, regardless of the user's strength.

[0105] In one embodiment, as Figure 6 shown, before the atomizing nozzle 100 is used for the first time, there is no liquid in both the hollow chamber 5 and the second liquid storage chamber 2114 to avoid affecting the spraying dose when the atomizing nozzle 100 is used for the first time.

[0106] In one embodiment, as Figure 13 and Figure 14As shown, when the liquid inlet of the first liquid storage chamber 2113 is completed or the spraying mechanism 2 finishes spraying, the piston 231 abuts against the second chamber wall 2112, and the piston 231 is in the second extreme position. In this way, by limiting the distance between the first chamber wall 2111 and the second chamber wall 2112, and by limiting the volume of the piston 231, the spraying dose of the spraying mechanism 2 can be limited to ensure the accuracy of the dose during each administration. Of course, when the piston 231 is in the second extreme position, the piston 231 may not abut against the second chamber wall 2112, and there may be a gap between the two. By separately limiting the moving distance of the piston 231, the spraying dose of the spraying mechanism 2 can be limited.

[0107] In one embodiment, as Figure 4 and Figure 9 shown, the liquid outlet hole 213 is arranged close to the first chamber wall 2111, which is beneficial for the liquid in the first liquid storage chamber 2113 to quickly pass through the liquid outlet hole 213 and enter the hollow chamber 5. Moreover, during the metering process of the spraying mechanism 2, it is also beneficial for all the liquid in the first liquid storage chamber 2113 to enter the hollow chamber 5 as much as possible, avoiding liquid waste.

[0108] In one embodiment, as Figure 4 and Figure 13 shown, when the spraying mechanism 2 finishes spraying, the piston 231 abuts against the second chamber wall 2112, and the second liquid inlet hole 214 is arranged close to the second chamber wall 2112. In this way, during the process of the piston 231 moving towards the first chamber wall 2111 for metering, the second valve 42 can be separated from the pressing of the piston 231 for a certain period of time to ensure that the liquid in the first liquid storage chamber 2113 can smoothly enter the hollow chamber 5.

[0109] In one embodiment, as Figure 3 and Figure 4 shown, the number of the liquid outlet holes 213 is four to ensure that the first liquid storage chamber 2113 can enter the hollow chamber 5 relatively quickly. Further, the four liquid outlet holes 213 are evenly spaced apart circumferentially around the liquid storage chamber 211 to avoid the adjacent two liquid outlet holes 213 being too close and interfering with the liquid outlet process. Of course, the number of the liquid outlet holes 213 is not limited to four, and can also be one, two, three or even more.

[0110] In one embodiment, as Figure 3 and Figure 4As shown, the number of the second liquid inlet holes 214 is two to ensure that the liquid in the hollow chamber 5 can enter the second liquid storage chamber 2114 relatively quickly during the metering process. Since the second liquid inlet holes 214 are provided with second valves 42, to avoid an increase in cost due to an excessive number of configured second valves 42, preferably, the number of the second liquid inlet holes 214 is two. Of course, the number of the second liquid inlet holes 214 can be one, three or even more.

[0111] In one embodiment, as Figure 1 and Figure 6 shown, the atomizing nozzle 100 further includes a triggering mechanism 6, and the triggering mechanism 6 includes an operating element 61. The spraying mechanism 2 further includes a piston rod 232, the piston rod 232 is connected to a piston 231, and the operating element 61 is linked with the piston rod 232. As Figure 4 and Figure 6 shown, when the operating element 61 moves along the first direction a under an external force, the operating element 61 can drive the piston rod 232 to move towards the second chamber wall 2112. When the operating element 61 moves along the second direction b under an external force, the operating element 61 can drive the piston rod 232 to move towards the first chamber wall 2111, and the first direction a is opposite to the second direction b. Specifically, the user operates the triggering mechanism 6 to drive the piston rod 232 to drive the piston 231 to move, which is convenient to use.

[0112] Further, as Figure 3 and Figure 6 shown, the main body case 21 is provided with a through hole 217, the piston rod 232 is movably inserted through the through hole 217 and is hermetically connected therebetween, and the rod end 2321 of the piston rod 232 extends to the outside of the liquid storage chamber 211. The triggering mechanism 6 further includes a connecting rod 62, and two ends of the connecting rod 62 are respectively pivotally connected to the operating element 61 and the piston rod 232, and the operating element 61 is linked with the piston rod 232 through the connecting rod 62.

[0113] Further, as Figure 1 and Figure 6 shown, the operating element 61 is provided with a first pivotal connection portion 611, the rod end 2321 is provided with a second pivotal connection portion 2322, and two ends of the connecting rod 62 are respectively pivotally connected to the first pivotal connection portion 611 and the second pivotal connection portion 2322. Among them, the second pivotal connection portion 2322 can be a separate component or integrally formed on the rod end 2321. Preferably, the second pivotal connection portion 2322 is provided on the end face of the rod end 2321, which is convenient for the connecting rod 62 to push the piston rod 232 to move towards the second chamber wall 2112. In a specific embodiment, two ends of the connecting rod 62 are respectively pivotally connected to the first pivotal connection portion 611 and the second pivotal connection portion 2322 through a pivotal connection shaft 64.

[0114] In one embodiment, as Figure 1 and Figure 6As shown, the number of trigger mechanisms 6 is two, and all the trigger mechanisms 6 are evenly spaced circumferentially around the piston rod 232, improving the stability of the triggering performance. Of course, the number of trigger mechanisms 6 can also be three or more. Preferably, for the convenience of user operation, the number of trigger mechanisms 6 is two, and the user can spray by pressing two trigger elements 61 with two fingers respectively.

[0115] In one embodiment, as Figure 1 and Figure 6 shown, the trigger mechanism 6 further includes an elastic element 63. When the operating element 61 moves along the first direction a under an external force, the elastic element 63 is compressed by the operating element 61. When the external force is removed, the elastic element 63 rebounds to drive the operating element 61 to move along the second direction b to the initial position. In a specific embodiment, the operating element 61 is a button structure, and the user presses the operating element 61 to make the operating element 61 move along the first direction a. Specifically, the operating element 61 further includes a pressing portion 612, and the first pivoting portion 611 is connected to the pressing portion 612. When using the atomizing nozzle 100, as Figure 1 、 Figure 9 and Figure 13As shown, when the user presses the pressing part 612, the pressing part 612 drives the first pivoting part 611 to move along the first direction a. The connecting rod 62 exerts a driving force on the second pivoting part 2322. At the same time, since the circumferential surface of the piston 231 abuts against the wall of the liquid storage chamber 211, the connecting rod 62 can drive the piston rod 232 to drive the piston 231 to move towards the second chamber wall 2112, causing the spraying mechanism 2 to suck liquid until the piston 231 abuts against the second chamber wall 2112 and the operating element 61 stops moving. During this process, the elastic element 63 is compressed by the operating element 61. When the user releases the pressing part 612, the elastic element 63 rebounds, causing the pressing part 612 to drive the first pivoting part 611 to move along the second direction b. The connecting rod 62 exerts a pulling force on the second pivoting part 2322 to drive the piston rod 232 to drive the piston 231 to move towards the first chamber wall 2111, causing the spraying mechanism 2 to perform a metering process until the piston 231 abuts against the first chamber wall 2111 and the operating element 61 stops moving. When the user presses the pressing part 612 again, the connecting rod 62 exerts a driving force on the second pivoting part 2322 to drive the piston rod 232 to drive the piston 231 to move towards the second chamber wall 2112, causing the spraying mechanism 2 to spray, completing one use. At the same time as the spraying mechanism 2 sprays, it also sucks liquid in preparation for the next use. When the user releases the pressing part 612 again, the elastic element 63 rebounds and the operating element 61 resets. At this time, the spraying mechanism 2 performs a metering process, that is, the remaining liquid in the first liquid storage chamber 2113 enters the hollow chamber 5 and squeezes the liquid in the hollow chamber 5 into the second liquid storage chamber 2114 in preparation for the next spraying. When using the atomizing nozzle 100 next time, when the user presses the operating element 61, spraying can be immediately performed, and liquid is sucked while spraying. By repeating these steps in a cycle, the drug delivery efficiency is high and the waiting time is short.

[0116] In one embodiment, as Figure 1 、 Figure 5 and Figure 9 shown, a receiving cavity 13 is provided on the outer wall of the housing 1. The operating element 61 is movably installed in the receiving cavity 13. One end of the connecting rod 62 extends into the receiving cavity 13 to pivotally connect with the operating element 61, and the assembly of the operating element 61 is simple.

[0117] Further, as Figure 1 and Figure 6 shown, the operating element 61 further includes a mounting post 613. The first pivoting part 611 and the pressing part 612 are respectively connected to both ends of the mounting post 613. The cross-sectional dimension of the pressing part 612 is larger than the cross-sectional dimension of the mounting post 613. The elastic element 63 is sleeved on the outer periphery of the mounting post 613. One end of the elastic element 63 abuts against one end face of the pressing part 612, and the other end abuts against the wall of the receiving cavity 13.

[0118] In one embodiment, as Figure 6As shown, the moving direction of the operating element 61 is perpendicular to the moving direction of the piston rod 232.

[0119] In one embodiment, as Figure 1 , Figure 2 and Figure 4 shown, the chamber wall of the liquid storage chamber 211 is provided with a first guiding structure 2115, and the outer wall of the piston 231 is provided with a second guiding structure 2311; the first guiding structure 2115 and the second guiding structure 2311 are in sliding fit to guide the piston 231 to perform linear motion and prevent the piston 231 from rotating.

[0120] In one embodiment, as Figures 2 to 4 , Figure 6 , Figure 7 shown, the main body shell 21 includes a first shell wall 215 and a second shell wall 216 which are spaced apart along the direction away from the first liquid guiding member 3. The first shell wall 215 is inserted into the first liquid guiding member 3, and the second shell wall 216 is inserted into the inner wall of the outer shell 1. In this way, the opposite sides of the main body shell 21 are respectively inserted into the outer shell 1 and the first liquid guiding member 3 to fix the main body shell 21 in the outer shell 1, and the assembly is convenient. Specifically, an assembly port 212 is provided on the first shell wall 215, and the first liquid guiding member 3 is inserted into the assembly port 212 and the two are in interference fit to ensure sealing. The outer surface of the second shell wall 216 is provided with a second insertion groove 2162, and the inner wall of the outer shell 1 is provided with a second insertion protrusion 15, and the second insertion groove 2162 is inserted into the second insertion protrusion 15.

[0121] In one embodiment, as Figure 1 and Figure 6 shown, the nozzle 22 includes a valve core 221 and an atomization chip 222, and the valve core 221 is provided with a valve core channel 2211. The second shell wall 216 of the main body shell 21 is provided with an annular through hole 2161, the outer shell 1 is provided with an annular column 14, and the annular column 14 is provided with an air inlet hole 141; the outer circumferential wall of the valve core 221 is in interference fit with the inner wall of the annular column 14, one end of the valve core 221 is inserted into the annular through hole 2161, and the atomization chip 222 is installed in the port at one end of the valve core channel 2211 away from the main body shell 21. When the spraying mechanism 2 sprays, the liquid in the second liquid storage chamber 2114 first enters the valve core channel 2211, and then passes through the atomization chip 222 to form fine-sized droplets and then be ejected. Among them, the atomization chip 222 is provided with a plurality of holes, and the size of the holes is limited to control the size of the droplets. During the spraying process of the nozzle 22, the air inlet hole 141 is used to introduce air, and the air can be mixed with the droplets to increase the shear force of the droplets to optimize the spraying effect of the droplets.

[0122] Furthermore, as Figure 1 , Figure 2 , Figure 4 and Figure 6As shown, the annular through-hole 2161 is provided with a first insertion groove 21611, and a first insertion protrusion 2212 is provided on the outer circumferential wall of the valve core 221. The first insertion protrusion 2212 is inserted into the first insertion groove 21611, facilitating assembly.

[0123] In one embodiment, as Figure 6 shown, the liquid inlet end 32 of the first liquid guiding member 3 is at least partially inserted into the mounting structure 11 and the two are in interference fit. In this way, the two ends of the first liquid guiding member 3 are respectively connected to the mounting structure 11 and the assembly port 212 on the main body shell 21 to achieve assembly.

[0124] In one embodiment, as Figure 1 and Figure 6 shown, the atomizing nozzle 100 further includes a second liquid guiding member 7. One end of the second liquid guiding member 7 is inserted into the mounting structure 11 and the two are in interference fit. The other end of the second liquid guiding member 7 extends to the outside of the housing 1 for insertion into the container. When the spraying mechanism 2 sucks liquid, the first liquid guiding member 3 sucks liquid from the container through the second liquid guiding member 7. By adding the second liquid guiding member 7 in this solution, a second liquid guiding member 7 with a suitable length can be selected according to the height of the container, and the second liquid guiding member 7 can be inserted to the lower part of the liquid in the container, so as to use up the liquid in the container as much as possible and avoid liquid waste. Of course, the second liquid guiding member 7 can also be directly integrally formed with the mounting structure 11. In this way, the atomizing nozzle 100 can be applied to a container with a height adapted to the second liquid guiding member 7.

[0125] It should be understood that the above embodiments are all exemplary and do not cover all possible embodiments included in the claims. Without departing from the scope of the present disclosure, various deformations and changes can be made on the basis of the above embodiments. Similarly, the technical features of the above embodiments can be arbitrarily combined to form other embodiments of the present invention that may not be explicitly described. Therefore, the above embodiments only represent several embodiments of the present invention and do not limit the protection scope of the present invention patent.

Claims

1. An atomizing nozzle, characterized in that: The atomizing nozzle (100) comprises: A housing (1) provided with a mounting structure (11), wherein a bottle mouth of a container can be detachably sealedly connected to the mounting structure (11) from the outside of the housing (1), and the container is used to store liquid; A spray mechanism (2), comprising a liquid storage chamber (211) and a nozzle (22); A first liquid guiding member (3), connected to the liquid storage chamber (211); a first valve (41) for enabling fluid communication between the first liquid guide member (3) and the liquid storage chamber (211) or fluid cutoff; Wherein, when the mounting structure (11) and the container are in a connected state, the first liquid guiding member (3) is connected to the container, and when the spray mechanism (2) is absorbing liquid, the first valve (41) is opened, and the first liquid guiding member (3) absorbs liquid from the container and transports it to the liquid storage chamber (211); when the spray mechanism (2) is not absorbing liquid, the first valve (41) is closed; when the spray mechanism (2) is spraying, the liquid in the liquid storage chamber (211) is sprayed out through the nozzle (22).

2. The atomizing nozzle according to claim 1, characterized in that: The spray mechanism (2) and the first liquid guiding member (3) are respectively installed in the housing (1).

3. The atomizing nozzle according to claim 1, characterized in that: The mounting structure (11) is annular and is arranged on a first outer side wall (12) of the housing (1); The mounting structure (11) gradually narrows in a direction away from the first outer side wall (12); the mounting structure (11) is inserted into the bottle mouth of the container and the two are interference fit.

4. The atomizing nozzle according to claim 1, characterized in that: When the spray mechanism (2) is spraying, the spray mechanism (2) is absorbing liquid at the same time, and the liquid currently absorbed by the spray mechanism (2) will not come into contact with the liquid currently used for spraying, and the liquid currently absorbed by the spray mechanism (2) is used for the next spraying.

5. The atomizing nozzle according to claim 4, characterized in that: The spray mechanism (2) comprises a piston (231) which is movably located in the liquid storage chamber (211); When the piston (231) moves in the liquid storage chamber (211), the piston (231) separates the liquid storage chamber (211) to form a first liquid storage chamber (2113) and a second liquid storage chamber (2114); the first liquid guide member (3) is connected to the first liquid storage chamber (2113) via the first valve (41), and the second liquid storage chamber (2114) is connected to the nozzle (22); The first liquid guide (3) transports the liquid sucked from the container to the first liquid storage chamber (2113), the first liquid storage chamber (2113) transports the liquid to the second liquid storage chamber (2114), and the liquid in the second liquid storage chamber (2114) is sprayed by the nozzle (22); When the spray mechanism (2) is spraying, the first liquid storage chamber (2113) and the second liquid storage chamber (2114) are not connected.

6. The atomizing nozzle according to any one of claims 1 to 5, characterized in that: The spray mechanism (2) comprises a piston (231) which is movably located in the liquid storage chamber (211); the liquid storage chamber (211) comprises a first chamber wall (2111) and a second chamber wall (2112) which are arranged spaced apart in a direction away from the first liquid guide member (3); the first valve (41) is arranged on the first chamber wall (2111); When the piston (231) is in the first extreme position, it abuts against the first chamber wall (2111), and the first valve (41) is in a closed state under the pressure of the piston (231); When the piston (231) moves toward the second cavity wall (2112) to trigger liquid suction, a first liquid storage chamber (2113) is formed between the piston (231) and the first cavity wall (2111), and the first liquid guiding member (3) sucks liquid from the container, and the first valve (41) opens under the pressure of the liquid in the first liquid guiding member (3), and the liquid enters the first liquid storage chamber (2113) through the first valve (41).

7. The atomizing nozzle according to claim 6, characterized in that: The spray mechanism (2) further comprises a main body shell (21), and the liquid storage chamber (211) is arranged on the main body shell (21); A first liquid inlet hole (21111) is provided on the first cavity wall (2111); an assembly port (212) is provided on a surface wall of the main body shell (21) facing the first liquid guiding member (3); the assembly port (212) is communicated with the first liquid inlet hole (21111); the first valve (41) is installed in the first liquid inlet hole (21111), and the liquid outlet end of the first liquid guiding member (3) is connected to the assembly port (212).

8. The atomizing nozzle according to claim 7, characterized in that: The number of the first liquid inlet hole (21111), the assembly port (212) and the first valve (41) is at least two, and the three are arranged in a one-to-one matching manner; the first liquid guide member (3) has a plurality of branch pipes (31), and the branch pipes (31) are arranged in a one-to-one matching manner with the assembly port (212); The outline of the liquid storage cavity (211) is cylindrical, and all of the first liquid inlet holes (21111) are evenly spaced and distributed along the circumference of the liquid storage cavity (211).

9. The atomizing nozzle according to claim 6, characterized in that: The spray mechanism (2) further comprises a main body shell (21), the liquid storage chamber (211) being arranged on the main body shell (21); a hollow chamber (5) is formed between the circumferential surface wall of the main body shell (21) and the inner wall of the outer shell (1); the circumferential surface wall of the main body shell (21) is provided with a liquid outlet hole (213) and a second liquid inlet hole (214), and the second liquid inlet hole (214) is provided with a second valve (42); When the piston (231) is in the first extreme position, a second liquid storage chamber (2114) is formed between the piston (231) and the second chamber wall (2112), and the second liquid storage chamber (2114) is in communication with the nozzle (22); When the piston (231) moves toward the second cavity wall (2112) to trigger liquid aspiration, the second valve (42) is in a closed state under the pressure of the piston (231), and liquid enters the first liquid storage chamber (2113), and part of the liquid contained therein flows into the hollow chamber (5) through the liquid outlet hole (213); When the piston (231) moves toward the first chamber wall (2111), the first valve (41) is closed under the pressure of the liquid in the first liquid storage chamber (2113), and the remaining liquid in the first liquid storage chamber (2113) flows into the hollow chamber (5) through the liquid outlet hole (213), and drives the liquid in the hollow chamber (5) to open the second valve (42) and enter the second liquid storage chamber (2114); When the piston (231) moves toward the second cavity wall (2112) to trigger spraying, the liquid in the second liquid storage chamber (2114) is squeezed by the piston (231) and sprayed out through the nozzle (22). At the same time, the first liquid guide (3) absorbs liquid from the container and transports it to the first liquid storage chamber (2113).

10. The atomizing nozzle according to claim 9, characterized in that: Before the atomizing nozzle (100) is used for the first time, there is no liquid in the hollow chamber (5) and the second liquid storage chamber (2114); and / or, when the first liquid storage chamber (2113) has finished filling with liquid or the spray mechanism (2) has finished spraying, the piston (231) abuts against the second chamber wall (2112), and the piston (231) is in a second extreme position; And / or, the liquid outlet (213) is arranged close to the first cavity wall (2111); And / or, the second liquid inlet hole (214) is arranged close to the second cavity wall (2112); And / or, the number of the liquid outlet holes (213) is at least two; And / or, the number of the second liquid inlet holes (214) is at least two.

11. The atomizing nozzle according to claim 6, characterized in that: The atomizing nozzle (100) further comprises a trigger mechanism (6), which comprises an operating element (61); the spray mechanism (2) further comprises a piston rod (232), the piston rod (232) is connected to the piston (231), and the operating element (61) is linked to the piston rod (232); When the operating element (61) moves along the first direction (a) under an external force, the operating element (61) can drive the piston rod (232) to move toward the second cavity wall (2112); When the operating element (61) moves along the second direction (b) under external force, the operating element (61) can drive the piston rod (232) to move toward the first cavity wall (2111), and the first direction (a) is opposite to the second direction (b).

12. The atomizing nozzle according to claim 11, characterized in that: The rod end (2321) of the piston rod (232) extends to the outside of the liquid storage chamber (211); The trigger mechanism (6) further comprises a connecting rod (62), two ends of which are respectively pivotally connected to the operating element (61) and the piston rod (232); the operating element (61) is linked to the piston rod (232) via the connecting rod (62).

13. The atomizing nozzle according to claim 12, characterized in that: The operating element (61) is provided with a first pivoting portion (611), the end of the rod (2321) is provided with a second pivoting portion (2322), and the two ends of the connecting rod (62) are respectively pivotally connected to the first pivoting portion (611) and the second pivoting portion (2322); And / or, the number of the trigger mechanisms (6) is at least two, and all of the trigger mechanisms (6) are evenly spaced and distributed around the circumference of the piston rod (232); And / or, the trigger mechanism (6) further comprises an elastic element (63), and when the operating element (61) moves in a first direction (a) under an external force, the elastic element (63) is compressed by the operating element (61), and when the external force is removed, the elastic element (63) rebounds to drive the operating element (61) to move in a second direction (b) to an initial position; And / or, the outer wall of the housing (1) is provided with a receiving cavity (13), the operating element (61) is movably mounted in the receiving cavity (13), and one end of the connecting rod (62) extends into the receiving cavity (13) to be pivotally connected to the operating element (61); And / or, the moving direction of the operating element (61) is perpendicular to the moving direction of the piston rod (232).

14. The atomizing nozzle according to claim 6, characterized in that: The cavity wall of the liquid storage cavity (211) is provided with a first guiding structure (2115), and the outer wall of the piston (231) is provided with a second guiding structure (2311); the first guiding structure (2115) and the second guiding structure (2311) are slidably matched to guide the piston (231) to perform linear motion; And / or, the spray mechanism (2) further comprises a main body shell (21), the liquid storage chamber (211) is arranged on the main body shell (21), the main body shell (21) comprises a first shell wall (215) and a second shell wall (216) which are arranged spaced apart in a direction away from the first liquid guiding member (3), the first shell wall (215) is plugged into the first liquid guiding member (3), and the second shell wall (216) is plugged into the inner wall of the outer shell (1).

15. The atomizing nozzle according to claim 6, characterized in that: The spray mechanism (2) further comprises a main body shell (21), and the liquid storage chamber (211) is arranged on the main body shell (21); the nozzle (22) comprises a valve core (221) and an atomization chip (222), and the valve core (221) is provided with a valve core channel (2211); The second shell wall (216) of the main shell (21) which faces away from the first liquid guide member (3) is provided with an annular through hole (2161), the outer shell (1) is provided with an annular column (14), and the annular column (14) is provided with an air inlet hole (141); the circumferential outer wall of the valve core (221) is interference fit with the inner wall of the annular column (14), one end of the valve core (221) is inserted into the annular through hole (2161), and the atomization chip (222) is installed in a port at one end of the valve core channel (2211) which faces away from the main shell (21).

16. The atomizing nozzle according to claim 15, characterized in that: The annular through hole (2161) is provided with a first plug-in groove (21611), and the circumferential outer wall of the valve core (221) is provided with a first plug-in protrusion (2212), and the first plug-in protrusion (2212) is plugged into the first plug-in groove (21611).

17. The atomizing nozzle according to claim 6, characterized in that: The liquid inlet end (32) of the first liquid guide member (3) is at least partially inserted into the mounting structure (11) and the two are interference fit; And / or, the atomizing nozzle (100) further comprises a second liquid guiding member (7), one end of which is inserted into the mounting structure (11) and the two are interference fit, and the other end of which extends to the outside of the housing (1) for insertion into the container; when the spray mechanism (2) is absorbing liquid, the first liquid guiding member (3) absorbs liquid from the container through the second liquid guiding member (7).

Images