Spray device

Abstract

The application relates to a spraying device. The spraying device comprises a liquid storage mechanism, a cover mechanism connected with the liquid storage mechanism and surrounding the liquid storage mechanism to form a liquid storage cavity, a spraying mechanism connected with the cover and accommodated in the liquid storage cavity to atomize liquid in the liquid storage cavity, a communication hole and a guide hole formed in the cover mechanism, the communication hole being communicated with the liquid storage cavity and the guide hole, the guide hole being communicated with the outside, and a leakage prevention mechanism movably arranged in the guide hole, the leakage prevention mechanism being capable of opening the guide hole at a first position when liquid cannot flow out of the guide hole under the action of gravity, and the leakage prevention mechanism being capable of blocking the guide hole at a second position when liquid can flow out of the guide hole under the action of gravity. When the spraying device is in a pouring state, the leakage prevention mechanism can be located at the second position to block the guide hole, so that liquid in the liquid storage cavity cannot flow out of the guide hole to cause liquid leakage. Therefore, the leakage prevention mechanism can effectively prevent liquid leakage when the spraying device is in the pouring state.

Description

Technical Field

[0001] This application relates to the field of spray technology, and in particular to a spray device. Background Technology

[0002] Aromatherapy sprays are products designed to improve and beautify indoor air quality by spraying liquids containing fragrances or essential oils. They not only purify the air but also enhance mood and create a pleasant atmosphere. The ingredients in aromatherapy sprays can include natural components such as tea tree oil and lavender oil, which have antibacterial and air-purifying effects. Furthermore, different scents are closely linked to human emotions; for example, citrus scents can be invigorating, while lavender scents help relax the mind and body. However, with traditional spray devices, when tilted, the liquid inside will leak out through the vent due to gravity. Summary of the Invention

[0003] One of the technical problems addressed by this application is how to prevent liquid leakage from spray devices.

[0004] A spraying device, comprising:

[0005] Liquid storage mechanism;

[0006] A capping mechanism is connected to the liquid storage mechanism and forms a liquid storage cavity with the liquid storage mechanism;

[0007] A spray mechanism is connected to the cap and housed within the liquid storage chamber to atomize the liquid in the chamber. The cap mechanism has a connecting hole and a guide hole. The connecting hole connects the liquid storage chamber and the guide hole, and the guide hole connects to the outside.

[0008] A leak-proof mechanism is movably disposed within the guide hole. When liquid cannot flow out of the guide hole under the action of gravity, the leak-proof mechanism can be in a first position to open the guide hole; when liquid can flow out of the guide hole under the action of gravity, the leak-proof mechanism can be in a second position to block the guide hole.

[0009] In one embodiment, the guide hole includes a first guide section and a second guide section that communicate with each other. The first guide section communicates with the connecting hole and is used to accommodate the leak-proof mechanism. The second guide section communicates with the outside. The diameter of the first guide section is larger than the diameter of the second guide section. The extension direction of the first guide section is set at an acute angle to the central axis of the liquid storage mechanism. The two ends of the first guide section are respectively referred to as the first end and the second end. The second end communicates with the second guide section. The second end is further away from the central axis of the liquid storage mechanism and the liquid storage cavity than the first end. The position of the first end is the first position, and the position of the second end is the second position.

[0010] In one embodiment, the leak-proof mechanism is spherical and has a density greater than that of the liquid in the storage cavity, and the leak-proof mechanism moves between the first position and the second position under the action of gravity.

[0011] In one embodiment, the end of the second guide segment away from the first guide segment forms an outlet that can communicate with the outside, and the outlet is further away from the central axis of the liquid storage mechanism relative to the inner wall of the liquid storage cavity.

[0012] In one embodiment, the connecting hole has a connecting port communicating with the first guide segment, the connecting port being located between the first end and the second end.

[0013] In one embodiment, the angle between the extending direction of the first guide segment and the central axis of the liquid storage mechanism is 45°.

[0014] In one embodiment, the device further includes an output mechanism connected to the capping mechanism, the capping mechanism and the output mechanism forming a buffer cavity communicating with the guide hole, and the output mechanism having an output hole communicating with the buffer cavity and the outside.

[0015] In one embodiment, the sealing mechanism has a recessed reflux groove on the surface defining the boundary of the buffer cavity, which communicates with the guide hole. The bottom wall of the reflux groove has a first end close to the guide hole and a second end away from the guide hole. Along the axial direction of the liquid storage mechanism, the first end is closer to the liquid storage cavity than the second end.

[0016] In one embodiment, the spraying mechanism has a gas channel and a spraying channel that are independent of each other and are connected to the liquid storage chamber. The sealing mechanism has an air inlet channel that connects the gas channel to the outside. The spraying channel has an inlet for liquid to enter and a spraying port for liquid atomization. The inlet is connected to the liquid storage chamber, and the gas flowing out of the gas channel can be sprayed toward the spraying port.

[0017] In one embodiment, the capping mechanism includes a first cap and a second cap that are detachably connected. The first cap is detachably connected to the liquid storage mechanism. The first cap and the second cap form the guide hole. The connecting hole and the air inlet channel are formed in the first cap.

[0018] In one embodiment, the first cover includes a mounting portion and an outer sleeve and an inner boss connected to the mounting portion. The mounting portion is connected to the liquid storage mechanism. The outer sleeve is arranged around the inner boss and has a diffusion cavity between them. The outer sleeve has a first hole communicating with the outside and the diffusion cavity. The inner boss has a second hole communicating with the diffusion cavity and the gas passage. The gas inlet passage includes the first hole, the second hole and the diffusion cavity.

[0019] In one embodiment, the first cover further includes an isolation sheet disposed within the diffusion cavity, the isolation sheet abutting against the inner wall surface of the guide hole to isolate the guide hole and the diffusion cavity.

[0020] In one embodiment, the spraying mechanism is detachably connected to the capping mechanism.

[0021] One technical effect of one embodiment of this application is that when the spraying device is in operation, the liquid cannot flow out of the guide hole under gravity. The leak-proof mechanism can open the guide hole in the first position to ensure the normal operation of the spraying device. When the spraying device is tilted, the liquid can flow out of the guide hole under gravity. At this time, the leak-proof mechanism can be positioned in the second position to block the guide hole, preventing the liquid in the storage chamber from flowing out through the guide hole and causing liquid leakage. Therefore, the leak-proof mechanism can effectively prevent liquid leakage when the spraying device is tilted. The spraying device is located in the storage chamber, and high-pressure gas needs to be introduced into the storage chamber so that the spraying device can atomize the liquid. Therefore, there is a high air pressure in the storage chamber. When the spraying device is tilted, the high-pressure gas still enters the storage chamber. Driven by the air pressure, the leak-proof mechanism can more reliably block the guide hole, thereby further improving the leak-proof effect. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of a spray device provided in one embodiment.

[0023] Figure 2 for Figure 1 A schematic diagram of the planar cross-sectional structure of the spraying device.

[0024] Figure 3 for Figure 2 A partial structural diagram.

[0025] Figure 4 for Figure 1 A three-dimensional cross-sectional view of the spray device shown.

[0026] Figure 5 for Figure 1 A three-dimensional cross-sectional view of the spray device in another location.

[0027] Figure 6 for Figure 1 A partial structural schematic diagram of the spray device shown.

[0028] Reference numerals: spray device 10, liquid storage mechanism 100, liquid storage bottle 110, liquid storage chamber 111, straw 120, filter element 130, capping mechanism 200, first cap 210, connecting hole 211, connecting port 2111, air inlet channel 212, first hole 2121, second hole 2122, diffuser chamber 2123, mounting part 213, outer sleeve 214, inner boss 215, isolation plate 216, second cap 220, reflux groove 221, guide hole 230, first guide section 231, first end 2311, second end 2312, second guide section 232, outlet 2321, spray mechanism 300, gas channel 310, spray channel 320, inlet 321, spray nozzle 322, leak prevention mechanism 400, output mechanism 500, buffer chamber 510, output hole 520. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0035] See Figure 1 , Figure 2 and Figure 3 One embodiment of this application provides a spraying device 10, which includes a liquid storage mechanism 100, a capping mechanism 200, a spraying mechanism 300, and a leak-proof mechanism 400. The capping mechanism 200 is disposed on the liquid storage mechanism 100, and the leak-proof mechanism 400 and the spraying mechanism 300 are disposed on the capping mechanism 200.

[0036] See Figure 1 , Figure 2 and Figure 3 In some embodiments, the liquid storage mechanism 100 includes a liquid storage bottle 110 and a straw 120. The liquid storage bottle 110 is mainly used to store liquid. The capping mechanism 200 is detachably connected to the liquid storage cavity 111. For example, the capping mechanism 200 and the liquid storage bottle 110 are fixedly connected by a detachable connection such as bolts or snap-fit ​​connections. The capping mechanism 200 and the liquid storage bottle 110 together form the liquid storage cavity 111. Of course, most of the liquid storage cavity 111 is formed by the liquid storage bottle 110. The liquid storage cavity 111 is used to store liquids such as fragrances or essential oils. The straw 120 can be fixed to the spraying mechanism 300 by a detachable connection. For example, the straw 120 can be directly sleeved on the spraying mechanism 300, with the other end of the straw 120 maintaining a certain distance from the bottom of the liquid storage cavity 111. Through the guiding effect of the straw 120, the liquid in the liquid storage cavity 111 is supplied to the spraying mechanism 300 through the straw 120. Of course, the liquid storage mechanism 100 may also include a filter element 130, which is disposed at one end of the pipette 120 near the bottom of the liquid storage chamber 111. The filter element 130 has a porous structure, resulting in a large number of micropores within the filter element 130 that form both the liquid storage chamber 111 and the pipette 120. The average pore size of these micropores can be between 20 and 100 micrometers. The liquid in the liquid storage chamber 111 enters the pipette 120 and the spray mechanism 300 through the micropores in the filter element 130. By using the filter element 130, the liquid entering the pipette 120 can be effectively filtered, thereby reducing the amount of solid impurities entering the spray mechanism 300 through the pipette 120 and minimizing clogging caused by solid impurities.

[0037] See Figure 4 , Figure 5 and Figure 6 In some embodiments, the capping mechanism 200 includes a first cap 210 and a second cap 220, which are detachably connected. The first cap 210 is detachably connected to the liquid storage bottle 110. The capping mechanism 200 has a connecting hole 211 and a guide hole 230. The connecting hole 211 connects the liquid storage chamber 111 and the guide hole 230, and the guide hole 230 connects to the outside. For example, the connecting hole 211 can be formed on the first cap 210, and the first cap 210 and the second cap 220 can form the guide hole 230. By detachably connecting the first cap 210 and the second cap 220 to form the guide hole 230, it is easier to process the guide hole 230. On the other hand, the leak-proof mechanism 400 is movably disposed in the guide hole 230, which also facilitates the installation of the leak-proof mechanism 400. This reduces the manufacturing and assembly difficulty of the spray device 10, thereby reducing the overall manufacturing cost of the spray device 10.

[0038] See Figure 4 , Figure 5 and Figure 6 In some embodiments, the first cover 210 is further provided with an air inlet channel 212, through which high-pressure gas generated by the air pump can enter the liquid storage chamber 111. For example, the first cover 210 includes a mounting part 213, an outer sleeve 214, and an inner boss 215. Both the outer sleeve 214 and the inner boss 215 are connected to the mounting part 213. The mounting part 213 is detachably connected to the liquid storage bottle 110, and a sealing element can be provided between the mounting part 213 and the liquid storage bottle 110, so that the sealing element presses against the mounting part 213 and the liquid storage bottle 110 to seal the liquid storage chamber 111. The outer sleeve 214 surrounds the inner boss 215, and the outer sleeve 214 and the inner boss 215 are spaced a certain distance apart radially along the liquid storage bottle 110, so that there is a diffusion cavity 2123 between the outer sleeve 214 and the inner boss 215. The outer sleeve 214 has a first hole 2121, which connects to the outside and the diffusion cavity 2123. The inner boss 215 has a second hole 2122, which connects to the liquid storage cavity 111. The air inlet channel 212 includes the first hole 2121, the second hole 2122, and the diffusion cavity 2123; that is, the first hole 2121, the second hole 2122, and the diffusion cavity 2123 can also be configured as the air inlet channel 212. High-pressure gas can sequentially enter the liquid storage cavity 111 through the first hole 2121, the diffusion cavity 2123, and the second hole 2122. There can be multiple first holes 2121, which are spaced apart circumferentially along the outer sleeve 214. Gas enters from the multiple first holes 2121 into the diffusion cavity 2123 for convergence and then enters the second hole 2122.

[0039] See Figure 3 , Figure 4 and Figure 6 In some embodiments, the first cover 210 further includes an isolation piece 216, which can be fixedly disposed in the diffusion cavity 2123. After the first cover 210 and the second cover 220 are installed, the isolation piece 216 can extend into the guide hole 230, so that the isolation piece 216 abuts against the inner wall surface of the guide hole 230, thereby isolating the guide hole 230 and the diffusion cavity 2123, effectively preventing the diffusion cavity 2123 and the guide hole 230 from communicating with each other.

[0040] See Figure 3In some embodiments, the guide hole 230 includes a first guide segment 231 and a second guide segment 232. The first guide segment 231 and the second guide segment 232 are interconnected and their extension directions are set at an angle. The diameter of the first guide segment 231 is larger than the diameter of the second guide segment 232. The first guide segment 231 is interconnected with the connecting hole 211. The first guide segment 231 is used to accommodate the leak-proof mechanism 400. The diameter of the first guide segment 231 can be appropriately larger than the cross-sectional size of the leak-proof mechanism 400, allowing the leak-proof mechanism 400 to move within the first guide segment 231. The diameter of the second guide segment 232 is smaller than the cross-sectional size of the leak-proof mechanism 400, therefore the leak-proof mechanism 400 cannot enter the second guide segment 232. The extension direction of the first guide segment 231 is set at an acute angle to the central axis of the liquid storage mechanism 100. This can also be understood as the first guide segment 231 being inclined relative to the axial direction of the liquid storage mechanism 100. For example, the angle of inclination of the first guide segment 231 relative to the axial direction of the liquid storage mechanism 100 can be 40° to 50°, specifically 45°, 40°, or 50°. For ease of description, the two ends of the first guide segment 231 are respectively referred to as the first end 2311 and the second end 2312. The second end 2312 is directly connected to the second guide segment 232, and the second end 2312 is further away from the central axis of the liquid storage mechanism 100 and the liquid storage cavity 111 than the first end 2311. In other words, from the first end 2311 to the second end 2312, the distance from the first guide segment 231 along the axial direction of the liquid storage mechanism 100 to the bottom of the liquid storage cavity 111 can gradually increase.

[0041] See Figure 3In some embodiments, the connecting hole 211 has a connecting opening 2111, which is directly connected to the first guide section 231. The connecting opening 2111 is located between the first end 2311 and the second end 2312, such that the connecting opening 2111 maintains a certain distance from both the first end 2311 and the second end 2312. The leak-proof mechanism 400 is spherical, that is, the leak-proof mechanism 400 can be a leak-proof ball. The density of the leak-proof mechanism 400 is greater than the density of the liquid in the liquid storage chamber 111, that is, the buoyancy generated by the liquid cannot overcome the weight of the leak-proof mechanism 400 itself to push the leak-proof mechanism 400 to move. The leak-proof mechanism 400 can move in the first guide section 231 under the action of gravity. The position of the first end 2311 is the first position, and the position of the second end 2312 is the second position, so that the leak-proof mechanism 400 can move between the first position and the second position. When the leak-proof mechanism 400 moves to the first position where the first end 2311 is located, given that the connecting port 2111 and the first end 2311 maintain a certain distance, the leak-proof mechanism 400 cannot block the connecting port 2111 and the guide hole 230. Therefore, the liquid storage chamber 111 can connect to the outside through the connecting hole 211 and the guide hole 230, allowing the gas in the liquid storage chamber 111 to flow out to the outside. When the leak-proof mechanism 400 moves to the second position where the second end 2312 is located, the leak-proof mechanism 400 will block the second guide section 232, preventing the first guide section 231 and the second guide section 232 from connecting. Therefore, the leak-proof mechanism 400 will block the guide hole 230. At this time, although the connecting hole 211 is connected to the first guide section 231, the connecting hole 211 cannot further connect to the second guide section 232 and the outside through the first guide section 231. Therefore, the gas or liquid fluid in the liquid storage chamber 111 cannot flow out to the outside through the connecting hole 211 and the guide hole 230.

[0042] In other embodiments, the leak-proof mechanism 400 may also be cylindrical or the like. The leak-proof mechanism 400 may also move independently of gravity. For example, the leak-proof mechanism 400 may be driven by other driving components, that is, the driving components drive the leak-proof mechanism 400 to move between the first position and the second position, which can also play the role of opening or blocking the guide hole 230.

[0043] See Figure 3 In some embodiments, the end of the second guide segment 232 furthest from the first guide segment 231 forms an outlet 2321 that can communicate with the outside. The outlet 2321 is further away from the central axis of the liquid storage mechanism 100 relative to the inner wall of the liquid storage cavity 111. When the liquid storage bottle 110 is cylindrical, it can also be understood that the distance from the outlet 2321 to the central axis of the liquid storage mechanism 100 is greater than the radius of the liquid storage bottle 110.

[0044] See Figure 3When the spray device 10 is in operation, the capping mechanism 200 is located above the liquid storage mechanism 100, the guide hole 230 is located above the liquid storage chamber 111, and the second end 2312 is located above the first end 2311. At this time, due to the special mechanism of the first guide section 231, the leak-proof mechanism 400 moves to the first position where the first end 2311 is located under its own weight, so the gas in the liquid storage chamber 111 can flow out through the connecting hole 211 and the guide hole 230. When the spray device 10 is tilted, there are two tilting states: horizontal tilting and inverted tilting. In the horizontal tilting state, the capping mechanism 200 and the liquid storage mechanism 100 are approximately at the same height. In the inverted tilting state, the capping mechanism 200 is located below the liquid storage mechanism 100, the guide hole 230 is located below the liquid storage chamber 111, and the second end 2312 is located below the first end 2311.

[0045] When the spray device 10 is in a horizontal tilted state, for example, when the second end 2312 is below the first end 2311, the leak prevention mechanism 400 moves to the second position where the second end 2312 is located under its own gravity. The leak prevention mechanism 400 will block the guide hole 230, so that the liquid in the liquid storage chamber 111 cannot flow out through the connecting hole 211 and the guide hole 230, thus causing liquid leakage. For example, when the second end 2312 is located above the first end 2311, the leak-proof mechanism 400 moves to the first position where the first end 2311 is located under its own gravity. Therefore, the leak-proof mechanism 400 cannot block the guide hole 230. Since the outlet 2321 is farther away from the central axis of the liquid storage mechanism 100 from the inner wall of the liquid storage cavity 111, although the liquid in the liquid storage cavity 111 can enter the guide hole 230 through the connecting hole 211, the height of the liquid level in the guide hole 230 will not reach the position of the outlet 2321. This will prevent the liquid in the guide hole 230 from flowing out through the outlet 2321, thus causing liquid leakage and preventing liquid leakage of the spray device 10.

[0046] When the spray device 10 is in an inverted and tilted state, due to the special mechanism of the first guide section 231, the leak prevention mechanism 400 moves to the second position where the second end 2312 is located under its own weight. The leak prevention mechanism 400 will block the guide hole 230, so that the liquid in the liquid storage chamber 111 cannot flow out through the connecting hole 211 and the guide hole 230 and thus prevent liquid leakage from the spray device 10.

[0047] It is worth mentioning that when the spray device 10 is in an inverted or tilted state, high-pressure air still enters the liquid storage chamber 111. Under the push of the air pressure, the contact force between the leak-proof mechanism 400 and the inner wall of the guide hole 230 is greater. Therefore, the leak-proof mechanism 400 can more effectively seal the guide hole 230, thereby further improving the leak-proof effect. It can be understood that when the air pressure in the liquid storage chamber 111 reaches a certain value, the air pump supplying high-pressure gas will reach the stall pressure, thereby stopping the continued supply of air and preventing the liquid storage mechanism 100 from being damaged due to excessive pressure in the liquid storage chamber 111.

[0048] See Figure 3 , Figure 4 and Figure 5 In some embodiments, the spray mechanism 300 is detachably connected to the capping mechanism 200. For example, the spray mechanism 300 can be detachably connected to the inner boss 215 of the first cap 210. The spray mechanism 300 is located inside the liquid storage chamber 111. The spray mechanism 300 has independent gas channels 310 and spray channels 320, both of which can communicate with the liquid storage chamber 111. The second hole 2122 of the air inlet channel 212 communicates with the gas channel 310, and the high-pressure gas in the air inlet channel 212 can enter the liquid storage chamber 111 through the gas channel 310. The spray channel 320 has an inlet 321 and a spray nozzle 322. The straw 120 is detachably sleeved on the spray mechanism 300, so that the inlet 321 of the spray channel 320 is interconnected with the lumen of the straw 120, and the spray nozzle 322 is directly connected to the liquid storage chamber 111. The spray nozzle 322 is positioned near the outlet of the gas channel 310. When high-pressure gas is ejected from the gas channel 310, it is directed towards the spray nozzle 322. This creates a Venturi effect, resulting in a relatively low pressure at the spray nozzle 322, forming a negative pressure. Consequently, the liquid in the liquid storage chamber 111 flows into the spray nozzle 322 at a certain speed through the suction tube 120 and the spray channel 320 under this negative pressure. Simultaneously, the high-pressure gas ejected from the gas channel 310 forms a high-speed gas. This high-speed gas shears and breaks up the liquid at the spray nozzle 322, atomizing it into an aerosol. This aerosol is then ejected to the outside through the connecting hole 211 and the guide hole 230, thus achieving the spraying function of the spray device 10.

[0049] See Figure 3 , Figure 4 and Figure 5Since high-pressure gas enters the liquid storage chamber 111 directly from the gas channel 310, the pressure in the liquid storage chamber 111 is increased, allowing more liquid to reach the spray nozzle 322 for atomization per unit time, thereby improving the atomization rate. Simultaneously, it effectively prevents negative pressure in the liquid storage chamber 111 due to liquid consumption, ensuring the smooth delivery of liquid from the liquid storage chamber 111 to the spray mechanism 300. Since the liquid storage chamber 111 is connected to the outside through the connecting hole 211 and the guide hole 230, the gas in the liquid storage chamber 111, carrying aerosol, can be discharged to the outside through the connecting hole 211 and the guide hole 230, preventing excessively high gas pressure in the liquid storage chamber 111 due to the inability to expel gas in time. It is understandable that, given that the spray mechanism 300 is housed in the liquid storage chamber 111, during the process of injecting liquid into the liquid storage chamber 111, the liquid level in the liquid storage chamber 111 should not reach the spray mechanism 300, so as to avoid the liquid flooding and blocking the spray nozzle 322 and the outlet of the gas channel 310, and to ensure that the spray mechanism 300 can perform its atomization function normally.

[0050] Since the first cap 210 is detachably connected to the liquid storage bottle 110, the spray mechanism 300 is also detachably connected to the first cap 210. When the first cap 210 is removed from the liquid storage bottle 110, the spray mechanism 300 can be detached from the liquid storage chamber 111, allowing the spray mechanism 300 to be unloaded from the first cap 210 in the space outside the liquid storage chamber 111. This allows for easy cleaning of the spray mechanism 300 after unloading, improving the convenience of cleaning and preventing solid impurities from clogging the gas passage 310 and the spray passage 320, thereby improving the reliability of the spray mechanism 300's operation.

[0051] See Figure 3 , Figure 4 and Figure 5 In some embodiments, the spraying device 10 further includes an output mechanism 500, which is connected to the capping mechanism 200, for example, the output mechanism 500 is connected to the second cap 220. The output mechanism 500 and the second cap 220 form a buffer cavity 510, and the output mechanism 500 has an output hole 520 that communicates with the outside and the buffer cavity 510. The second guide section 232 of the guide hole 230 is in communication with the buffer cavity 510. When the spraying mechanism 300 atomizes the liquid, the aerosol will be discharged to the outside in sequence through the connecting hole 211, the guide hole 230, the buffer cavity 510, and the output hole 520.

[0052] See Figure 3 , Figure 4 and Figure 5In some embodiments, a reflux groove 221 is provided on the second cover 220. The reflux groove 221 is formed by a certain depth of recess in the surface of the second cover 220 that defines the boundary of the buffer cavity 510. The bottom wall of the reflux groove 221 faces the output hole 520. The bottom wall of the reflux groove 221 has a first end and a second end. The first end is located close to the outlet 2321 of the guide hole 230, and the second end is located away from the outlet 2321 of the guide hole 230. Along the axial direction of the liquid storage mechanism 100, the first end is closer to the liquid storage cavity 111 than the second end, which can be understood as the reflux groove 221 being inclined. For example, the surface of the reflux groove 221 can be an inclined plane at an acute angle to the axial direction of the liquid storage mechanism 100, and the depth of the reflux groove 221 is equal. Alternatively, the surface of the reflux groove 221 can be a plane perpendicular to the axial direction of the liquid storage mechanism 100. In this case, the depth of the reflux groove 221 can be unequal, so that the portion of the reflux groove 221 closer to the outlet 2321 has a relatively larger depth, while the portion of the reflux groove 221 farther from the outlet 2321 has a relatively larger depth. There can be multiple reflux grooves 221, and these multiple reflux grooves 221 can be radially distributed relative to the outlet 2321.

[0053] Therefore, by setting up the return channel 221, the condensate formed by aerosol in the buffer chamber 510 can be collected by capillary action through the return channel 221 to the outlet 2321, and then returned to the storage chamber 111 through the guide hole 230 and the connecting hole 211, so that the liquid can be recovered for recycling.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A spraying device, characterized in that, include: Liquid storage mechanism; A capping mechanism is connected to the liquid storage mechanism and forms a liquid storage cavity with the liquid storage mechanism; A spray mechanism is connected to the cap and housed within the liquid storage chamber to atomize the liquid in the chamber. The cap mechanism has a connecting hole and a guide hole. The connecting hole connects the liquid storage chamber and the guide hole, and the guide hole connects to the outside. A leak-proof mechanism is movably disposed within the guide hole. When liquid cannot flow out of the guide hole under the action of gravity, the leak-proof mechanism can be in a first position to open the guide hole; when liquid can flow out of the guide hole under the action of gravity, the leak-proof mechanism can be in a second position to block the guide hole.

2. The spraying device according to claim 1, characterized in that, The guide hole includes a first guide section and a second guide section that are interconnected. The first guide section is connected to the connecting hole and is used to accommodate the leak-proof mechanism. The second guide section is connected to the outside. The diameter of the first guide section is larger than the diameter of the second guide section. The extension direction of the first guide section is set at an acute angle to the central axis of the liquid storage mechanism. The two ends of the first guide section are respectively referred to as the first end and the second end. The second end is connected to the second guide section. The second end is further away from the central axis of the liquid storage mechanism and the liquid storage cavity than the first end. The position of the first end is the first position, and the position of the second end is the second position.

3. The spraying device according to claim 2, characterized in that, The leak-proof mechanism is spherical and has a density greater than that of the liquid in the storage chamber. The leak-proof mechanism moves between the first position and the second position under the action of gravity.

4. The spraying device according to claim 2, characterized in that, The end of the second guide segment away from the first guide segment forms an outlet that can communicate with the outside. The outlet is further away from the central axis of the liquid storage mechanism than the inner wall of the liquid storage cavity.

5. The spraying device according to claim 2, characterized in that, The connecting hole has a connecting port that communicates with the first guide segment, and the connecting port is located between the first end and the second end.

6. The spraying device according to claim 2, characterized in that, The angle between the extension direction of the first guide section and the central axis of the liquid storage mechanism is 45°.

7. The spraying device according to claim 1, characterized in that, It also includes an output mechanism connected to the sealing mechanism, the sealing mechanism and the output mechanism forming a buffer cavity that communicates with the guide hole, and the output mechanism having an output hole that communicates with the buffer cavity and the outside.

8. The spraying device according to claim 7, characterized in that, The sealing mechanism has a recessed surface on the surface that defines the boundary of the buffer cavity to form a reflux groove that communicates with the guide hole. The bottom wall of the reflux groove has a first end close to the guide hole and a second end away from the guide hole. Along the axial direction of the liquid storage mechanism, the first end is closer to the liquid storage cavity than the second end.

9. The spraying device according to claim 1, characterized in that, The spray mechanism has independent gas channels and spray channels that are connected to the liquid storage chamber. The sealing mechanism has an air inlet channel that connects the gas channels to the outside. The spray channel has an inlet for liquid to enter and a spray nozzle for liquid atomization. The inlet is connected to the liquid storage chamber, and the gas flowing out of the gas channel can be sprayed toward the spray nozzle.

10. The spraying device according to claim 9, characterized in that, The sealing mechanism includes a first cover and a second cover that are detachably connected. The first cover is detachably connected to the liquid storage mechanism. The first cover and the second cover form the guide hole. The connecting hole and the air inlet channel are opened in the first cover.

11. The spraying device according to claim 10, characterized in that, The first cover includes a mounting part and an outer sleeve and an inner boss connected to the mounting part. The mounting part is connected to the liquid storage mechanism. The outer sleeve is arranged around the inner boss and there is a diffusion cavity between them. The outer sleeve has a first hole that communicates with the outside and the diffusion cavity. The inner boss has a second hole that communicates with the diffusion cavity and the gas channel. The gas inlet channel includes the first hole, the second hole and the diffusion cavity.

12. The spraying device according to claim 11, characterized in that, The first cover further includes an isolation plate disposed within the diffusion cavity, the isolation plate abutting against the inner wall surface of the guide hole to isolate the guide hole and the diffusion cavity.

13. The spraying device according to claim 1, characterized in that, The spraying mechanism and the sealing mechanism are detachably connected.

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