Nozzle and mouthwash bottle

Abstract

The application discloses a nozzle and a mouthwash bottle, and relates to the technical field of packaging bottles. The mouthwash bottle comprises a bottle body, the bottle body is formed with a containing cavity and a bottle opening communicating with the containing cavity, the nozzle comprises a communicating portion and a nozzle portion, the communicating portion is formed with a flow guide channel for communicating with the containing cavity; the nozzle portion is connected to the communicating portion and is formed with an elongated liquid spraying channel, the liquid spraying channel communicates with the flow guide channel and has a liquid outlet communicating with the outside. The technical scheme can enhance the flushing effect of the mouthwash on residues in the oral cavity, and can effectively prevent bacteria and pollutants in the outside air from entering the liquid spraying channel and the containing cavity communicating with the liquid spraying channel through the liquid surface tension sealing characteristics.

Description

Technical Field

[0001] This application relates to the field of packaging bottle technology, and in particular to a nozzle and mouthwash bottle. Background Technology

[0002] A mouthwash bottle is a container specifically designed for holding and facilitating the use of mouthwash. It is used to safely and hygienically store mouthwash liquid and prevent it from becoming contaminated or evaporating.

[0003] Users typically pour the mouthwash from the bottle through the cap and then put it in their mouth through the cap. However, during the pouring process, improper angle control can easily cause the liquid to spill, and once the cap is open, the mouthwash is exposed to the air and is easily contaminated. Utility Model Content

[0004] This application provides a nozzle and a mouthwash bottle that can prevent mouthwash from becoming contaminated during use.

[0005] In a first aspect, embodiments of this application provide a nozzle for a mouthwash bottle, the mouthwash bottle comprising a bottle body having a receiving cavity and a bottle opening communicating with the receiving cavity, the nozzle comprising: The connecting portion has a flow channel for connecting the receiving cavity; and The nozzle portion is connected to the connecting portion and forms a long and narrow liquid spraying channel, which is connected to the flow guiding channel and has a liquid outlet that communicates with the outside.

[0006] Based on the nozzle of this application embodiment, by setting a slender spray channel, the sprayed liquid can be constrained into a directional and concentrated liquid flow pattern. When the sprayed liquid is mouthwash, it can be delivered more precisely to specific areas in the oral cavity such as between teeth and gingival sulcus, enhancing the local cleaning effect. The slender spray channel can increase the spray pressure of the mouthwash, enhancing the flushing effect of the mouthwash on residue in the oral cavity. At the same time, the small diameter of the outlet can effectively prevent bacteria and contaminants in the outside air from entering the spray channel through the sealing properties of liquid surface tension, thereby preventing bacteria and contaminants from entering the receiving cavity connected to the spray channel.

[0007] Secondly, embodiments of this application provide a mouthwash bottle, comprising: A bottle body having a receiving cavity and a bottle opening communicating with the receiving cavity, wherein at least a portion of the bottle body is capable of elastic deformation to change the volume of the receiving cavity; and The nozzle, as described above, is located at the bottle opening, and the liquid spraying channel connects to the receiving cavity.

[0008] Based on the mouthwash bottle of this application embodiment, the elastic deformation design of the bottle body allows the user to directly press the bottle body, causing the mouthwash in the receiving cavity to be sprayed directionally into the mouth through the nozzle outlet. By controlling the pressing force and number of presses, the user can achieve on-demand dispensing, avoiding the problem of excessive liquid overflow that is common in traditional tilting mouthwash bottles, reducing waste and improving the user experience. The mouthwash in the receiving cavity passes through the spray channel and is finally ejected from the outlet in a directional spray manner. When cleaning the mouth, it can spray mouthwash onto specific areas in a rinsing manner, which enhances the cleaning effect compared to delivering mouthwash by gargling. At the same time, it can prevent mouthwash in the mouth from flowing back into the mouthwash bottle and contaminating the unused mouthwash in the receiving cavity. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the structure of an embodiment of the mouthwash bottle of this application; Figure 2 This is a cross-sectional view of an embodiment of the mouthwash bottle of this application; Figure 3 This is an exploded view of an embodiment of the mouthwash bottle of this application; Figure 4 This is a schematic diagram of the structure of one embodiment of the nozzle of this application; Figure 5 This is a cross-sectional view of an embodiment of the nozzle of this application; Figure 6 This is a schematic diagram of the bottle body in one embodiment of the mouthwash bottle of this application; Figure 7 for Figure 6 Sectional view at point AA; Figure 8 This is a schematic diagram of another embodiment of the nozzle of this application; Figure 9 This is a schematic diagram of the structure of another embodiment of the nozzle of this application; Figure 10 This is a partial cross-sectional view of an embodiment of the mouthwash bottle of this application, in which the free end of the nozzle is housed in the receiving part; Figure 11 This is a partial cross-sectional view of an embodiment of the mouthwash bottle of this application, in which the free end of the nozzle is not housed in the receiving part.

[0011] Explanation of icon numbers: 10. Mouthwash bottle; 100. Bottle body; 110. Receiving cavity; 120. Bottle mouth; 130. Pressing surface; 140. Connecting surface; 150. Arched part; 160. Bottle neck; 161. Limiting rib; 162. Stop rib; 170. Bottle body; 180. Bottle bottom; 190. Connecting wall; 200. Nozzle; 210. Connecting part; 211. Flow channel; 212. Bottle cap ; 2121, Storage section; 2121a, Limiting groove; 2121b, Limiting protrusion; 2122, Connecting protrusion; 2122a, Connecting channel; 213, Conduit; 220, Nozzle section; 221, Spraying channel; 222, Outlet; 223, Nozzle section; 224, Flexible section; 230, Sealing section; 300, Water intake pipe; 400, Protective cover; 500, Reception space.

[0012] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0014] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0015] Please see Figure 1 and Figure 2 This application proposes a nozzle and a mouthwash bottle 10. The mouthwash bottle 10 includes a bottle body 100 and a nozzle 200; the bottle body 100 has a receiving cavity 110 and a bottle mouth 120 communicating with the receiving cavity 110, at least a portion of the bottle body 100 is capable of elastic deformation to change the volume of the receiving cavity 110; and the nozzle 200 is disposed at the bottle mouth 120, the nozzle 200 forms a spray channel 221 communicating with the receiving cavity 110 and having a liquid outlet 222 communicating with the outside.

[0016] With the elastic deformation design of the bottle body 100, users can directly press the bottle body 100 to direct the mouthwash in the receiving cavity 110 into the mouth through the outlet 222 of the nozzle 200. By controlling the pressing pressure and the number of presses, the user can dispense the mouthwash as needed, avoiding the problem of excessive liquid overflow that is common in traditional tilting mouthwash bottles 10, reducing waste and improving the user experience. The mouthwash in the receiving cavity 110 is ejected from the outlet 222 through the spray channel 221 in a directional spray manner. When cleaning the mouth, it can spray mouthwash into specific areas in a rinsing manner, which enhances the cleaning effect compared to gargling. At the same time, it can prevent the mouthwash in the mouth from flowing back into the mouthwash bottle 10 and contaminating the unused mouthwash in the receiving cavity 110.

[0017] Please see Figure 2 and Figure 3 The nozzle 200 includes a connecting portion 210 and a nozzle portion 220. The nozzle portion 220 has a spray channel 221, and the connecting portion 210 is connected between the nozzle portion 220 and the bottle body 100. The connecting portion 210 has a guide channel 211 that connects the receiving cavity 110 and the spray channel 221.

[0018] Specifically, in some embodiments, the spray channel 221 is elongated. By designing the spray channel 221 as elongated, the sprayed liquid can be constrained into a directional and concentrated flow pattern. When the sprayed liquid is mouthwash, it can be delivered more precisely to specific areas in the oral cavity, such as between teeth and the gingival sulcus, enhancing the local cleaning effect. The elongated shape of the spray channel 221 can increase the spray pressure of the mouthwash, enhancing its flushing effect on residue in the oral cavity. Optionally, the length-to-diameter ratio of the spray channel 221 is 3-30 to avoid the sprayed water stream being too thin when the length-to-diameter ratio is too large, or the sprayed water flow velocity being too low when the length-to-diameter ratio is too small, thus failing to guarantee sufficient impact force for effective cleaning.

[0019] In some embodiments, the inner diameter of the spray channel 221 is smaller than the inner diameter of the guide channel 211. When liquid enters the spray channel 221 from the guide channel 211 with a larger inner diameter, the liquid velocity increases significantly due to the reduced flow cross-sectional area. This allows the liquid to be ejected from the outlet 222 with higher kinetic energy, forming a liquid stream with a longer range and higher concentration. When the sprayed liquid is mouthwash, it can directly impact hard-to-clean areas such as between teeth and gingival sulcus, improving oral cleaning effectiveness. Simultaneously, the localized increase in pressure can atomize some of the mouthwash, increasing the contact area between the mouthwash and the oral mucosa, enhancing the effectiveness of the antibacterial components in the mouthwash.

[0020] Optionally, in some embodiments, the spray channel 221 is shorter than the guide channel 211, reducing the kinetic energy consumed when the liquid passes through the spray channel 221, allowing the liquid to be sprayed out from the outlet 222 with higher kinetic energy, thereby improving the oral cleaning effect.

[0021] Optionally, in some embodiments, the inner diameter of the spray channel 221 gradually decreases along the direction pointing to the liquid outlet 222 in order to further increase the flow rate of the liquid ejected from the liquid outlet 222.

[0022] Specifically, the side length or diameter of the liquid outlet 222 is no greater than 3 mm. The smaller outlet 222, when not in use, forms a stable seal due to the surface tension of the liquid. When liquid delivery stops, the residual liquid column in the spray channel 221 automatically blocks the backflow path under the action of surface tension, solving the problem of residual liquid dripping in the spray channel 221. The liquid surface tension sealing characteristic also effectively prevents bacteria and contaminants from the outside air from entering the spray channel 221, thereby preventing bacteria and contaminants from entering the receiving cavity 110 connected to the spray channel 221.

[0023] For example, the outlet 222 is rectangular with a long side and a short side, so that the water stream sprayed from the outlet 222 is flat, that is, the water stream also has a long side and a short side. When the nozzle 200 is used to spray mouthwash to clean the oral cavity, the long side of the outlet 222 can be placed horizontally, and the tongue can be rinsed by the long side of the water stream; when it is necessary to rinse the gums and gaps between the teeth, the long side of the outlet 222 can be placed vertically, and the short side of the water stream can be used for rinsing. Of course, the outlet 222 may also have other shapes, including but not limited to circles or squares, which can also achieve a certain rinsing effect.

[0024] Optionally, the flow channel 211 of the connecting portion 210 and the liquid spraying channel 221 of the nozzle portion 220 are smoothly connected to reduce liquid flow resistance and avoid liquid residue problems caused by abrupt changes in channel size. Furthermore, the inner wall of the liquid spraying channel 221 is designed as a smooth curved surface to reduce liquid residue and bacterial growth within the liquid spraying channel 221.

[0025] Specifically, in some embodiments, the nozzle portion 220 is elongated rod-shaped, and the liquid spraying channel 221 extends along the length of the nozzle portion 220. The elongated rod-shaped nozzle portion 220 facilitates deep penetration into the oral cavity, reduces liquid splashing, and avoids contamination from contact between the sprayed liquid and air.

[0026] Please see Figure 4 and Figure 5In some embodiments, the nozzle portion 220 includes a nozzle segment 223 and a flexible segment 224, the flexible segment 224 being connected between the nozzle segment 223 and the connecting portion 210, and the flexible segment 224 being configured to bend relative to the connecting portion 210.

[0027] By configuring the nozzle portion 220 to include a nozzle segment 223 and a flexible segment 224 connecting the nozzle segment 223 and the connecting portion 210, the position of the nozzle segment 223 relative to the connecting portion 210 changes accordingly when the flexible segment 224 bends and deforms relative to the connecting portion 210. This allows the orientation of the liquid outlet 222 on the nozzle segment 223 to be changed, thus altering the position and direction of the liquid spray. When the sprayed liquid is mouthwash, the user can flexibly adjust the spray angle according to the oral cavity structure, allowing the outlet 222 to be directly aimed at areas that are difficult for the existing fixed nozzle 200 to reach, such as the lingual side of the mandibular molars and the floor of the maxillary sinus. Simultaneously, when the nozzle segment 223 accidentally contacts a tooth or gum, the bending deformation of the flexible segment 224 absorbs the impact force, preventing excessive impact and damage to the tooth or gum.

[0028] It is understandable that the hardness of the nozzle section 223 is greater than that of the flexible section 224. Specifically, the flexible section 224 is made of soft rubber so that it can bend and deform relative to the connecting part 210; the nozzle section 223 is made of hard rubber so that it will not deform during use, thereby preventing the size of the liquid outlet 222 from changing and affecting the water flow rate and speed.

[0029] Specifically, in some embodiments, the flexible segment 224 is elastic, and the outlet 222 normally faces a preset direction. "Normal" means that when the flexible segment 224 is not subjected to external force, its direction can be tilted upwards relative to the horizontal direction. Because the flexible segment 224 is elastic, after the external force on the bent flexible segment 224 is released, the flexible segment 224 can automatically return to its normal state, causing the outlet 222 to face the preset direction. When the nozzle 200 is used to spray mouthwash to clean the oral cavity, the outlet 222 is oriented towards the oral cavity, and the direction of the outlet 222 can be adjusted without touching the nozzle 200 to achieve directional spraying of mouthwash.

[0030] In another embodiment, the flexible segment 224 is plastic, and the direction of the outlet 222 can be adjusted by bending the flexible segment 224. Because the flexible segment 224 is plastic, after bending the flexible segment 224, the shape of the flexible segment 224 changes and remains fixed. When the nozzle 200 is used to spray mouthwash to clean the oral cavity, the direction of the outlet 222 can be flexibly adjusted by bending the flexible segment 224, so that the outlet 222 faces the oral cavity, thereby realizing the directional spraying of mouthwash.

[0031] Optionally, in some embodiments, the free end of the nozzle portion 220 is provided with a liquid outlet 222, and the free end of the nozzle portion 220 is hemispherical. When the nozzle portion 220 extends into the oral cavity and comes into contact with teeth, gums, or oral mucosa, the spherical profile can maximize the dispersion of pressure through the contact area, avoiding mechanical damage. The sharpness of the free end of the nozzle portion 220 is reduced to avoid puncturing oral tissues.

[0032] Accordingly, in some embodiments, the outer wall surface of the connecting portion 210 and / or the nozzle portion 220 is provided with a stop structure, which is configured to limit the depth to which the nozzle 200 is inserted into the user's oral cavity.

[0033] Optionally, the distance between the outlet 222 and the stop structure along the axial direction of the nozzle 200 is set to 15-20 mm. When the nozzle 200 is inserted into the oral cavity, the stop structure will interfere with the lips or teeth, limiting the maximum insertion depth of the nozzle 200 to no more than 25 mm. This ensures that the nozzle 200 has an effective spray range while preventing the nozzle 200 from touching the throat and causing nausea or soft tissue damage. Considering the different distances from the hard palate to the incisors in adults and children, the distance between the outlet 222 and the stop structure can also be set to 10-12 mm, depending on the scenario of use for children, so that the nozzle 200 can adapt to a smaller oral cavity depth and prevent soft tissue damage caused by excessive insertion.

[0034] Specifically, the stop structure can be an annular piece, a frustum, or a baffle plate disposed on one side of the connecting portion 210 or the nozzle portion 220, located on the outer periphery of the connecting portion 210 or the nozzle portion 220. The stop structure can also be other structures that serve the same limiting function, and the specific shape is not limited.

[0035] Please see Figure 2 and Figure 4 In some embodiments, the free end of the nozzle portion 220 is provided with a sealing portion 230, which is integrally formed with the nozzle 200 to seal the liquid outlet 222.

[0036] The sealing section 230 forms a complete seal on the nozzle 200 through an injection molding process. During the storage and transportation of the mouthwash bottle 10 containing mouthwash, the sealing section 230 seals the outlet 222 to ensure the complete sealing of the receiving cavity 110, prevent the mouthwash from being contaminated, and ensure the stability of the active ingredients in the mouthwash.

[0037] Specifically, a V-shaped groove of a certain depth is formed between the sealing portion 230 and the free end of the nozzle 200, which serves as an easy-tear slit. Users can easily detach the sealing portion 230 from the nozzle 200 through this slit to enable normal use of the nozzle 200. Correspondingly, this easy-tear slit is a one-time opening structure, meaning that the sealing portion 230 cannot be resealed after being detached from the nozzle 200. This one-time opening structure allows for direct identification of whether the product has been opened, effectively preventing the risks of refilling and counterfeiting.

[0038] Optionally, the edge of the free end where the nozzle 200 is connected to the sealing part 230 can be rounded to form a smooth chamfer. After the sealing part 230 is removed, the free end of the nozzle 200 will not produce sharp burrs, reducing the risk of oral cavity scratches.

[0039] In some embodiments, the nozzle 200 further includes a sealing plug connected to the nozzle portion 220 and used to seal the liquid outlet 222. Specifically, the sealing plug is provided with a sealing groove, and the free end of the nozzle portion 220 is inserted into the sealing groove, that is, the sealing plug is placed on the free end of the nozzle portion 220 to seal the liquid outlet 222. The sealing plug can also be in the form of a soft rubber stopper. By inserting the sealing plug into the liquid outlet 222, the elastic deformation of the sealing plug adapts to the size of the liquid outlet 222, thereby sealing the liquid outlet 222. When the mouthwash in the mouthwash bottle 10 is not used up, the sealing plug can seal the liquid outlet 222 to prevent the mouthwash in the receiving cavity 110 from being contaminated. Optionally, the sealing plug can be connected to the nozzle portion 220 or the connecting portion 210 via a connector. When the mouthwash bottle 10 needs to be used, the sealing plug can be removed. By providing a connector, the sealing plug is prevented from falling off and being lost.

[0040] Please see Figures 2 to 4 In some embodiments, the connecting portion 210 includes a bottle cap 212 and a conduit 213; the bottle cap 212 is used to connect the bottle body 100 and seal the bottle mouth 120; the conduit 213 is connected to the bottle cap 212 and forms a flow channel 211.

[0041] Specifically, the bottle cap 212 is threadedly connected to the bottle body 100. The outer peripheral wall of the portion of the bottle body 100 forming the bottle opening 120 has external threads, and the inner peripheral wall of the bottle cap 212 has internal threads that match these external threads. The bottle cap 212 is connected to and separated from the bottle body 100 by screwing it on. The conduit 213 connects the nozzle portion 220 and the bottle cap 212, and forms a flow channel 211 to connect the receiving cavity 110 and the spray channel 221. By placing the conduit 213 on the bottle cap 212, the bottle cap 212 connects to the bottle body 100 and seals the bottle opening 120 while simultaneously connecting the flow channel 211 and the receiving cavity 110. Optionally, the bottle cap 212 and the conduit 213 are integrally formed, which eliminates the installation process between the conduit 213 and the bottle cap 212, and at the same time avoids leakage of liquid in the receiving cavity 110 due to the existence of installation gaps between the bottle cap 212 and the conduit 213.

[0042] Optionally, the nozzle portion 220 and the connecting portion 210 can be designed as separate parts. The end of the conduit 213 facing away from the bottle cap 212 can be considered as the interface connecting to the nozzle portion 220. After the nozzle portion 220 is manufactured separately, it is connected to the interface of the conduit 213 to realize the connection between the flow channel 211 and the liquid spraying channel 221. Specifically, the nozzle portion 220 can be inserted into the interface through an interference fit between the nozzle portion 220 and the conduit 213, or the nozzle portion 220 can be sleeved onto the interface to achieve a sealed connection between the nozzle portion 220 and the conduit 213. By separating the nozzle portion 220 and the connecting portion 210, the nozzle portion 220 can be replaced, so that nozzle portions 220 of different lengths or sizes can be installed on the connecting portion 210 according to actual needs.

[0043] Of course, the nozzle part 220 and the connecting part 210 can also be integrally formed, which eliminates the installation process between the nozzle part 220 and the conduit 213, as well as the installation process between the bottle cap 212 and the conduit 213. At the same time, it avoids leakage of liquid in the receiving cavity 110 due to the existence of installation gaps between the nozzle part 220 and the conduit 213.

[0044] Please see Figures 8 to 11 Furthermore, in some embodiments, the bottle cap 212 is provided with a receiving portion 2121, the nozzle portion 220 is bendable, and the receiving portion 2121 is configured to receive the free end of the nozzle portion 220.

[0045] By housing the free end of the nozzle portion 220 in the storage portion 2121, the length of the nozzle portion 220 in the height direction of the bottle body 100 is shortened, thereby reducing the overall height of the mouthwash bottle 10 and facilitating its storage and packaging. Furthermore, it prevents the dispensing port 222 from being exposed to air, reducing the risk of external dust and microorganisms entering the receiving cavity 110 through the dispensing port 222 and contaminating the mouthwash.

[0046] Optionally, when the free end of the nozzle portion 220 is housed in the receiving portion 2121, the liquid outlet 222 is inclined downward relative to the horizontal direction. By bending the nozzle portion 220 to house the free end of the nozzle portion 220 within the receiving portion 2121, the nozzle portion 220 and the connecting portion 210 form an inverted U-shaped structure, further reducing the risk of external dust and microorganisms entering the receiving cavity 110 through the liquid outlet 222 and thus contaminating the mouthwash.

[0047] Specifically, the receiving part 2121 is a blind hole on the bottle cap 212 and a sealing ring provided on the inner peripheral wall of the blind hole. When the free end of the nozzle part 220 is inserted into the blind hole, it forms an interference fit with the sealing ring in the radial direction, thereby fixing the free end of the nozzle part 220 in the blind hole and sealing the liquid outlet 222. When it is necessary to spray liquid through the nozzle part 220, simply pull the free end of the nozzle part 220 out of the blind hole.

[0048] Please see Figure 8 In another embodiment, the receiving part 2121 includes a limiting groove 2121a and a limiting protrusion 2121b located within the limiting groove 2121a. The limiting protrusion 2121b cooperates with the groove wall of the limiting groove 2121a to form a receiving space, and the free end of the nozzle part 220 is inserted into the receiving space. Specifically, the limiting protrusion 2121b is disposed on the inner peripheral wall of the limiting groove 2121a. By engaging the free end of the nozzle part 220 between the limiting protrusion 2121b and the inner peripheral wall of the limiting groove 2121a, the free end of the nozzle part 220 is fixed in the receiving space. Alternatively, multiple limiting protrusions 2121b are disposed opposite each other on the inner peripheral wall of the limiting groove 2121a. By engaging the free end of the nozzle part 220 between the multiple limiting protrusions 2121b, the free end of the nozzle part 220 is fixed in the receiving space.

[0049] Please see Figure 9Optionally, in some embodiments, the limiting protrusion 2121b may also be provided at the opening of the limiting groove 2121a. In the direction towards the outlet 222, the outer diameter of the portion of the nozzle 220 near its free end gradually decreases, so that after the free end of the nozzle 220 is inserted into the limiting groove 2121a, the nozzle 220 is held in place by the limiting protrusion 2121b at the opening, thus fixing the free end of the nozzle 220 within the receiving space. Furthermore, a fixing groove is provided on the bottom wall of the limiting groove 2121a opposite to the opening. After the free end of the nozzle 220 is inserted into the limiting groove 2121a, it is embedded in the fixing groove, further preventing contamination of the outlet 222.

[0050] For example, with the nozzle 200 placed vertically and the nozzle portion 220 located above the bottle cap 212, the opening of the limiting groove 2121a can be provided at the top of the bottle cap 212. The free end of the nozzle portion 220 is inserted into the limiting groove 2121a from top to bottom through this opening and is finally fixed in the receiving space. Accordingly, when the nozzle needs to be used, the free end of the nozzle portion 220 can be pulled upward from the receiving space. The limiting groove 2121a can also penetrate the peripheral wall of the bottle cap 212, so that a through-hole is formed on the peripheral wall of the bottle cap 212, allowing the free end of the nozzle portion 220 to be squeezed into the limiting groove 2121a from the outside to the inside through this through-hole and finally fixed in the receiving space. Accordingly, when the nozzle 200 needs to be used, the free end of the nozzle portion 220 can be pulled upward from the receiving space or ejected outward.

[0051] Please see Figure 6 and Figure 7 In some embodiments, the bottle body 100 has two opposing pressing surfaces 130 and two opposing connecting surfaces 140 on its periphery. The two connecting surfaces 140 are respectively connected between the two pressing surfaces 130, and the area of ​​the pressing surface 130 is larger than the area of ​​the connecting surface 140.

[0052] Understandably, the connecting surface 140 is used to connect the two pressing surfaces 130. The area of ​​the connecting surface 140 is smaller than that of the pressing surface 130. Given a fixed height of the bottle body 100, the width of the connecting surface 140 is smaller than that of the pressing surface 130, making it easier for the user to grip the bottle body 100. When using the mouthwash bottle 10, the pressing surface 130 serves as the force-bearing surface for the user to apply pressure. When gripping the bottle body 100, the user's fingertips press against the pressing surface 130. When the user presses the pressing surface 130, bringing the two pressing surfaces 130 closer together, the volume of the receiving cavity 110 decreases, the pressure increases, and the mouthwash in the receiving cavity 110 is finally sprayed out from the outlet 222. The pressing surface 130 has a larger area than the connecting surface 140, increasing the contact area between the palm and the pressing surface 130 during pressing, making it easier for the user to apply force and complete the pressing action more conveniently.

[0053] Specifically, the two pressing surfaces 130 protrude in opposite directions. That is, the two pressing surfaces 130 adopt a double-convex curved surface design. On the one hand, the convex curved surface shape conforms to the human grip habit. When holding the bottle 100, the fingers are in a naturally curved state, and the fingertips naturally curve and fit against the convex curved pressing surface 130, forming an interlocking effect, increasing sufficient grip resistance and preventing the bottle 100 from slipping. On the other hand, the convex curved pressing surface 130 is more prone to deformation, reducing the pressure required for pressing, allowing users to complete the pressing action more easily.

[0054] Correspondingly, the two connecting surfaces 140 can also be configured to protrude in opposite directions. When the user applies pressure to the pressing surface 130, the connecting surface 140 bends and deforms to reduce the distance between the two pressing surfaces 130, and also to reduce the volume of the receiving cavity 110, thereby achieving the spraying effect. Therefore, by setting the connecting surface 140 as a convex curved surface, the connecting surface 140 can deform more easily when pressure is applied to the pressing surface 130, thereby reducing the pressure required for pressing and allowing the user to complete the pressing action more easily.

[0055] Optionally, in some embodiments, to prevent the bottle 100 from slipping due to its excessive smoothness, the outer surface of the bottle 100 is provided with an anti-slip texture. By providing an anti-slip texture on the outer surface of the bottle 100, the friction between the bottle 100 and the user's hand is increased, thereby improving the stability of the user's grip. Specifically, the anti-slip texture may cover the entire outer surface of the bottle 100, or it may be provided only on one side or in a partial area; no specific limitations are imposed here.

[0056] Furthermore, in some embodiments, the hardness of the two pressing surfaces 130 is greater than the hardness of the two connecting surfaces 140. That is, when pressure is applied to the pressing surfaces 130, the shapes of the two pressing surfaces 130 remain essentially unchanged, or change only slightly. The volume of the receiving cavity 110 is reduced mainly through the elastic deformation of the two connecting surfaces 140, thereby achieving the spraying effect. Correspondingly, the hardness of the two pressing surfaces 130 can also be set to be less than the hardness of the two connecting surfaces 140. That is, when pressure is applied to the pressing surfaces 130, the shapes of the two connecting surfaces 140 remain essentially unchanged, or change only slightly. The volume of the receiving cavity 110 is reduced mainly through the elastic deformation of the two pressing surfaces 130 themselves, thereby achieving the spraying effect.

[0057] Optionally, in some embodiments, the bottle body 100 is made of a transparent material. By using a transparent material to make the bottle body 100, the user can directly observe the remaining amount of mouthwash in the receiving cavity 110 through the bottle body 100, which facilitates timely replenishment and control of usage. Specifically, the bottle body 100 can be entirely transparent, or it can be transparent on one side, or it can be only partially transparent; no specific limitations are imposed here.

[0058] Please see Figure 2 and Figure 3 In some embodiments, the mouthwash bottle 10 further includes a water-drawing tube 300 located in the receiving cavity 110. The water-drawing tube 300 is connected to and communicates with the nozzle 200. The length of the water-drawing tube 300 is greater than the height of the receiving cavity 110. The bottom wall of the receiving cavity 110 forms an arched portion 150 that protrudes toward the bottle opening 120. The end of the water-drawing tube 300 away from the bottle opening 120 abuts against the bottom wall of the receiving cavity 110 and is located between the side wall of the receiving cavity 110 and the arched portion 150. The liquid outlet 222 and the opening of the end of the water-drawing tube 300 away from the bottle opening 120 face the same side of the bottle body 100.

[0059] It should be noted that the arched portion 150 and the side wall of the receiving cavity 110 are connected by a curved transition, forming an annular liquid collection groove. When the amount of liquid residue in the receiving cavity 110 is small, the residual liquid gathers in the annular liquid collection groove under the action of gravity and the guiding action of the arched portion 150. By setting the length of the water suction pipe 300 to be greater than the height of the receiving cavity 110, the water suction pipe 300 is bent or tilted within the receiving cavity 110 so that the end of the water suction pipe 300 away from the bottle mouth 120 is located between the side wall of the receiving cavity 110 and the arched portion 150, that is, within the annular liquid collection groove. When the amount of liquid residue in the receiving cavity 110 is small, the residual liquid gathers in the annular liquid collection groove, and the end of the water suction pipe 300 is located exactly within the annular liquid collection groove. The residual liquid can be guided to the nozzle 200 through the water suction pipe 300 to reduce the minimum liquid suction level of the water suction pipe 300, thereby reducing the amount of liquid residue in the receiving cavity 110 that cannot be discharged.

[0060] It is understandable that, since the arched part 150 protrudes towards the bottle mouth 120, a groove corresponding to the arched part 150 is formed at the bottom of the bottle body 100. When the bottle body 100 is heated and expands, the groove provides deformation space for the bottom of the bottle body 100, preventing the bottom of the bottle body 100 from bulging away from the bottle mouth 120 when heated and expanding, thus preventing the bottle body 100 from being placed upright normally.

[0061] By aligning the openings of the outlet 222 and the end of the suction pipe 300 furthest from the bottle opening 120 towards the same side of the bottle body 100, when the liquid residue in the receiving cavity 110 is small, tilting the bottle body 100 towards the side facing the outlet 222 causes the liquid in the receiving cavity 110 to gather towards the same side of the bottom of the bottle body 100 under the influence of gravity. Since the opening of the end of the suction pipe 300 furthest from the bottle opening 120 faces the same side of the bottle body 100 as the outlet 222, this indicates that the liquid in the receiving cavity 110 gathers at the end of the suction pipe 300 furthest from the bottle opening 120, facilitating the suction pipe 300 to draw up the small amount of liquid remaining in the receiving cavity 110.

[0062] Specifically, the nozzle 200 has a connecting protrusion 2122 protruding on the side facing the water pipe 300. The water pipe 300 is inserted into the connecting protrusion 2122. The connecting protrusion 2122 has a connecting channel 2122a, which connects to the spray channel 221 and the water pipe 300.

[0063] By providing a connecting protrusion 2122 on the side of the nozzle 200 facing the water intake pipe 300, convenient installation between the water intake pipe 300 and the nozzle 200 is achieved, while the connecting channel 2122a of the connecting protrusion 2122 enables communication between the spray channel 221 and the water intake pipe 300. An interference fit between the water intake pipe 300 and the connecting protrusion 2122 allows the end of the water intake pipe 300 to be inserted into the connecting channel 2122a of the connecting protrusion 2122, or the end of the water intake pipe 300 to be sleeved on the connecting protrusion 2122, thus achieving a sealed connection between the water intake pipe 300 and the connecting protrusion 2122.

[0064] Optionally, the free end of the connecting protrusion 2122 is chamfered so that the outer diameter of the chamfered portion of the connecting protrusion 2122 gradually decreases in the extending direction of the connecting protrusion 2122, so that the smaller outer diameter end of the connecting protrusion 2122 can be gradually inserted into the water pipe 300 to achieve a sealed connection between the water pipe 300 and the connecting protrusion 2122.

[0065] Please see Figure 2 and Figure 6 In some embodiments, the bottle body 100 includes a bottle body portion 170, a bottle bottom portion 180, and a bottle neck portion 160. Along the height direction of the bottle body portion 170, the bottle bottom portion 180 and the bottle neck portion 160 are respectively disposed at both ends of the bottle body portion 170; the bottle bottom portion 180, the bottle neck portion 160, and the bottle body portion 170 cooperate to form a receiving cavity 110, and the bottle mouth 120 is disposed at the bottle neck portion 160; the outer wall surface of the bottle neck portion 160 is provided with a limiting rib 161, the limiting rib 161 is close to the connection between the bottle neck portion 160 and the bottle body portion 170, and the nozzle 200 is threadedly connected to the bottle neck portion 160 and abuts against the limiting rib 161.

[0066] The outer peripheral wall of the neck portion 160, away from the bottle body portion 170, is provided with an external thread, and the inner peripheral wall of the bottle cap 212 is provided with an internal thread that matches the external thread. The nozzle 200 is connected and separated from the bottle body 100 by screwing the nozzle 200. By providing a limiting rib 161 on the neck portion 160, when the nozzle 200 is screwed until it abuts against the limiting rib 161, a sealed connection between the nozzle 200 and the bottle body 100 is completed. The limiting rib 161 serves as a mechanical stop reference for the threaded connection of the nozzle 200. By controlling the distance between the upper surface of the limiting rib 161 and the end face of the bottle mouth 120, the screwing depth of the nozzle 200 is controlled, avoiding damage to the threads on the nozzle 200 and the bottle body 100 caused by excessive screwing, and also avoiding insufficient screwing of the nozzle 200 to achieve an effective sealed connection between the nozzle 200 and the bottle body 100.

[0067] Unlike the above, the outer peripheral wall of the neck portion 160 is provided with a first stepped surface facing away from the bottle body portion 170. When the nozzle 200 is screwed on until it abuts against the first stepped surface, a sealing connection is completed between the nozzle 200 and the bottle body 100. That is, the first stepped surface can play the same role as the aforementioned limiting rib 161. By controlling the distance between the first stepped surface and the end face of the bottle mouth 120, the screwing depth of the nozzle 200 can be controlled.

[0068] Optionally, in some embodiments, the bottle body 170 is tapered, and the inner diameter of the bottle body 170 gradually decreases in the direction from the bottom 180 to the neck 160. By tapering the bottle body 170, the radial cross-section of the bottle body 170 varies at different heights, allowing the user to choose a suitable grip height based on their palm size for a more comfortable and stable grip on the mouthwash bottle 10, and to perform the corresponding squeezing and rinsing actions.

[0069] In some embodiments, the outer peripheral wall of the neck portion 160 and the outer peripheral wall of the body portion 170 are radially spaced apart in the bottle body 100 and connected by a connecting wall 190. The bottle cap 212 of the connecting portion 210 includes a cap plate and an inner ring portion and an outer ring portion disposed on the same side of the cap plate. The inner peripheral wall of the inner ring portion is provided with an internal thread that is adapted to the external thread on the outer peripheral wall of the neck portion 160, so that the inner ring portion is threadedly connected to the neck portion 160. The outer ring portion is spaced apart outside the inner ring portion. The outer peripheral wall of the body portion 170 is provided with a second stepped surface facing away from the bottle bottom 180. When the bottle cap 212 is screwed on until the inner ring portion abuts against the first stepped surface, the outer ring portion abuts against the second stepped surface at the same time.

[0070] It is understandable that the second step surface is closer to the bottom of the bottle 180 than the first step surface. That is, in the axial direction of the bottle body 100, the length of the outer ring is greater than the length of the inner ring. By setting the outer ring, the length of the bottle cap 212 is increased, making it easier for the user to apply force to the bottle cap 212 to twist it.

[0071] Meanwhile, when the bottle cap 212 is provided with the aforementioned storage portion 2121, since the inner ring portion, outer ring portion, cap plate and connecting wall 190 define the clearance space, the limiting groove 2121a or blind hole can be formed by the cap plate and outer ring portion recessed toward the connecting wall 190, so as to avoid the bottle body 100 obstructing the setting of the limiting groove 2121a or blind hole.

[0072] Please see Figure 2 , Figure 3 and Figure 6 In one embodiment, the mouthwash bottle 10 further includes a protective cap 400, which is connected to the bottle body 100 and cooperates with the bottle body 100 to form a receiving space 500, and the nozzle 200 is located in the receiving space 500.

[0073] Specifically, the outer peripheral wall of the neck portion 160 is provided with a stop rib 162 or a third stepped surface is formed. The protective cap 400, with one open end, is fitted onto the outer periphery of the neck portion 160 and abuts against the third stepped surface. The protective cap 400 and the neck portion 160 are connected by an interference fit. By covering the nozzle 200 with the protective cap 400, the nozzle 200 is located within the receiving space 500 formed by the cooperation between the protective cap 400 and the bottle body 100, preventing the nozzle 200 from being exposed to the air and reducing the risk of external dust and microorganisms entering the receiving cavity 110 through the liquid outlet 222 and thus contaminating the mouthwash.

[0074] Similarly, the protective cap 400 can also be connected to the bottle body 170. By setting a stop rib 162 or forming a third step surface on the outer peripheral wall of the bottle body 170, the open end of the protective cap 400 is fitted onto the outer periphery of the bottle body 170 and abuts against the third step surface. The connection between the protective cap 400 and the bottle body 170 is achieved through the interference fit between the protective cap 400 and the bottle body 170.

[0075] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0076] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0077] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0078] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A nozzle for a mouthwash bottle, the mouthwash bottle comprising a bottle body having a receiving cavity and a bottle opening communicating with the receiving cavity, characterized in that, The nozzle includes: The connecting portion has a flow channel for connecting the receiving cavity; and The nozzle portion is connected to the connecting portion and forms a long and narrow liquid spraying channel, which is connected to the flow guiding channel and has a liquid outlet that communicates with the outside.

2. The nozzle as claimed in claim 1, characterized in that, The inner diameter of the spray channel is smaller than the inner diameter of the guide channel, and / or the spray channel is shorter than the guide channel.

3. The nozzle as described in claim 1, characterized in that, The side length or diameter of the liquid outlet is no greater than 3 mm.

4. The nozzle as claimed in claim 1, characterized in that, The nozzle portion includes a nozzle section and a flexible section, the flexible section being connected between the nozzle section and the connecting portion, and the flexible section being configured to bend and deform relative to the connecting portion.

5. The nozzle as described in claim 4, characterized in that, The flexible segment is elastic, and under normal conditions, the liquid outlet faces a preset direction; or... The flexible section is plastic, and the direction of the liquid outlet can be adjusted by bending the flexible section.

6. The nozzle as claimed in claim 1, characterized in that, The nozzle portion has a liquid outlet at its free end, and the free end of the nozzle portion is hemispherical.

7. The nozzle as claimed in claim 1, characterized in that, The free end of the nozzle is provided with a plastic sealing portion, which is integrally formed with the nozzle to seal the liquid outlet; or, The nozzle also includes a sealing plug, which is connected to the nozzle portion and is used to block the liquid outlet.

8. The nozzle as claimed in claim 1, characterized in that, The nozzle portion is slender and rod-shaped, and the liquid spraying channel extends along the length direction of the nozzle portion.

9. The nozzle according to any one of claims 1 to 8, characterized in that, The connecting portion includes: A bottle cap, used to connect the bottle body and seal the bottle opening; and A conduit is connected to the bottle cap, and the conduit forms the flow channel.

10. The nozzle as claimed in claim 9, characterized in that, The bottle cap has a receiving portion, the nozzle portion is bendable, and the receiving portion is configured to accommodate the free end of the nozzle portion. When the free end of the nozzle portion is accommodated in the receiving portion, the liquid outlet direction is inclined downward relative to the horizontal direction; and / or, The bottle cap and the nozzle are integrally formed.

11. A mouthwash bottle, characterized in that, include: A bottle body having a receiving cavity and a bottle mouth communicating with the receiving cavity, wherein at least a portion of the bottle body is capable of elastic deformation to change the volume of the receiving cavity; as well as The nozzle as described in any one of claims 1 to 10, wherein the nozzle is disposed at the bottle opening, and the liquid spraying channel communicates with the receiving cavity.

12. The mouthwash bottle as described in claim 11, characterized in that, The mouthwash bottle also includes a protective cap, which is connected to the bottle body and forms a receiving space, and the nozzle is located within the receiving space.

13. The mouthwash bottle as described in claim 11, characterized in that, The bottle body has two pressing surfaces arranged in opposite directions and two connecting surfaces arranged in opposite directions on its periphery. The two connecting surfaces are respectively connected between the two pressing surfaces. The area of ​​the pressing surface is larger than the area of ​​the connecting surface, and the hardness of the two pressing surfaces is greater than or less than the hardness of the two connecting surfaces.

14. The mouthwash bottle as described in claim 13, characterized in that, The two pressing surfaces protrude in opposite directions; and / or, The two connecting surfaces protrude in opposite directions.

15. The mouthwash bottle as described in claim 11, characterized in that, The bottle body is made of a transparent material; and / or, The outer surface of the bottle is provided with an anti-slip texture.

16. The mouthwash bottle as described in claim 11, characterized in that, The mouthwash bottle also includes a water-drawing tube located within the receiving cavity, the water-drawing tube being connected to and communicating with the nozzle, and the length of the water-drawing tube being greater than the height of the receiving cavity; and / or, The bottom wall of the receiving cavity is formed with an arched portion protruding towards the bottle opening. The end of the water-drawing tube away from the bottle opening abuts against the bottom wall of the receiving cavity and is located between the side wall of the receiving cavity and the arched portion. The liquid outlet and the opening of the end of the water-drawing tube away from the bottle opening face the same side of the bottle body.

17. The mouthwash bottle as described in claim 16, characterized in that, The nozzle has a connecting protrusion on the side facing the water-drawing pipe. The water-drawing pipe is inserted into the connecting protrusion. The connecting protrusion has a connecting channel that connects the spray channel and the water-drawing pipe.

18. The mouthwash bottle as described in claim 11, characterized in that, The bottle body includes: Bottle body; and The bottle bottom and the bottle neck are respectively located at both ends of the bottle body along the height direction of the bottle body; the bottle bottom, the bottle neck, and the bottle body cooperate to form a receiving cavity, and the bottle mouth is located at the bottle neck; The outer wall of the bottle neck is provided with a limiting rib, which is located near the connection between the bottle neck and the bottle body. The nozzle is threaded to the bottle neck and abuts against the limiting rib.

19. The mouthwash bottle as described in claim 18, characterized in that, The bottle body is tapered, and the inner diameter of the bottle body gradually decreases in the direction from the bottom of the bottle towards the neck.

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