Water outlet device and aerator

Abstract

A water outlet device and an aerator are disclosed. The aerator includes a housing and the water outlet device, the water outlet device including a water outlet panel and an inner body, the water outlet panel being rotatably connected to a water outlet end of the inner body to form different water spray patterns, where a boss is provided outside a water inlet end of the inner body, and a distance from an outer wall of the boss to an axis of the inner body is greater than a radius of the water outlet end of the inner body; a circumferential side wall of the housing is provided with a step surface; and the boss is pressed against the step surface in an axial direction of the housing, to connect the inner body to the housing. The present disclosure can improve the compatibility of the inner body and reduce production costs.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application is a continuation application of International Patent Application No. PCT / CN 2024 / 117662, filed on Sep. 9, 2024, which claims priority of Chinese Patent Application No. 202322529935.6, filed on Sep. 18, 2023, the entire contents of which are incorporated herein by reference.TECHNICAL FIELD

[0002] The present disclosure relates to the field of water outlet structures of sanitary ware products, and in particular, to a water outlet device and an aerator.BACKGROUND

[0003] In the prior art, a novel water outlet structure, which changes water spray patterns by flipping a water spray pattern former, has emerged. However, this scheme has the following problems: to ensure the stability of the connection between an inner body and a housing, there are numerous mating relationships between the housing and the internal components of the inner body. Furthermore, in some schemes, it is also necessary to utilize the mating relationships between the housing and the internal components to limit a sealing element, imposing high requirements on the precision of their mating. For such water outlet structures, it is generally necessary to equip the inner body with a housing having a specific assembly structure for the two to be mutually compatible. Therefore, each time a new water outlet structure is developed, a separate mold must be created to produce the compatible housing, leading to increased production costs.SUMMARY

[0004] The present disclosure relates to a water outlet device, including a water outlet panel and an inner body, where the water outlet panel is rotatably connected to a water outlet end of the inner body to form different water spray patterns, a boss is provided outside a water inlet end of the inner body, and a distance from an outer wall of the boss to an axis of the inner body is greater than a radius of the water outlet end of the inner body, to connect the inner body to a housing.

[0005] The present disclosure also relates to an aerator, including a housing and the water outlet device as described above, where

[0006] a circumferential side wall of the housing is provided with a step surface, and an inner diameter of the step surface is greater than an outer diameter of the inner body; and

[0007] the boss is pressed against the step surface in an axial direction of the housing.BRIEF DESCRIPTION OF THE DRAWINGS

[0008] FIG. 1 is an exploded view of an aerator according to the present disclosure;

[0009] FIG. 2 is a first cross-sectional view and a partial enlarged view of an aerator according to some embodiments of the present disclosure;

[0010] FIG. 3 is a second cross-sectional view of an aerator according to some embodiments of the present disclosure;

[0011] FIG. 4 is a first cross-sectional view of an aerator in some embodiments of the present disclosure; and

[0012] FIG. 5 is a second cross-sectional view of an aerator in some embodiments of the present disclosure.DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] To elaborate on the technical contents, objectives, and effects achieved of the present disclosure, the following description is provided in conjunction with the embodiments and the accompanying drawings.

[0014] Referring to FIGS. 1-5, an aerator includes a housing 1 and a water outlet device 2. A circumferential sidewall of the housing 1 is provided with a step surface 11. The water outlet device 2 includes a water outlet panel 21 and an inner body 22. The water outlet panel 21 is rotatably connected to a water outlet end of the inner body 22 to form different water spray patterns. A boss 221 is provided outside a water inlet end of the inner body 22. A distance from an outer wall of the boss 221 to the axis of the inner body 22 is greater than a radius of the water outlet end of the inner body 22, to connect the inner body 22 to the housing 1. The boss 221 is pressed against the step surface 11 in an axial direction of the housing 1.

[0015] It can be understood that in the aforementioned prior art, the flipping of the water outlet panel relies on the joint support of the inner body and the housing, that is, both the housing and the inner body together define an assembly structure for the water outlet panel to be flipped. In the present disclosure, the inner body, as an independent functional unit with a function of switching water spray patterns, can achieve the flipping of the water outlet panel 21 even without the housing. Moreover, due to the provision of the boss, the inner body may be embedded into any housing with a single step, eliminating the need for custom molding for each housing product. By providing the boss 221, which is pressed against the water inlet end of the housing 1, the impact force of water pressure on the inner body 22 can be resisted through the cooperation between a faucet and the boss 221, ensuring that the inner body 22 remains suspended within the housing 1, and maintaining a stable connection between the inner body 22 and the housing 1 after simplifying the connection structure. Additionally, the flipping of the water outlet panel 21 allows for changes in the water spray patterns, enabling the water outlet device 2 to form a plurality of water spray patterns even without rotating the housing 1. As long as the distance r from the outer wall of the boss 221 to the axis of the inner body 22 is greater than the radius R of the water outlet end of the inner body 22, the boss 221 can be mated with a step surface whose inner diameter is greater than that of the inner body 22 but smaller than that of the boss 221, that is, as long as the outer diameter of the boss 221 is always greater than the maximum outer diameter of the inner body 22, the inner body may be embedded into the corresponding housing. An optimal scheme is to form a spacing between an outer wall of the inner body 22 and an inner wall of the step surface. In this way, the precision requirements for the dimensions of mating between the outer wall of the inner body 22 and the inner wall of the housing 1 during assembly can be reduced, thereby reducing the forming and processing accuracy requirements for the inner wall surface of the housing 1, reducing costs and improving production efficiency.

[0016] In some embodiments, an inner wall of the housing 1 is provided with internal threads adjacent to the water inlet end, and the internal threads are located between the step surface 11 and an end face of the water inlet end of the housing 1, facilitating the screwing-in of water outlet devices such as quick-opening faucets, basin faucets, kitchen faucets, or shower faucets with external threads; alternatively, an outer wall of the housing 1 is provided with external threads adjacent to the water inlet end, and an edge of at the side of the external threads close to the water outlet end of the housing 1 is located closer to the water outlet end than the step surface 11, facilitating the screwing-in of water outlet devices such as basin faucets with internal threads. The housing 1 may be connected to different water outlet apparatuses through the internal threads or external threads, improving the connection compatibility between the housing 1 and various water outlet apparatuses while also concealing the inner body within the housing, making the appearance of the apparatuses more unified.

[0017] In some embodiments, a sealing element 3 is provided on a side of the boss 221 away from the water outlet end of the inner body 22. After the housing 1 is threadedly connected to a water outlet of the water outlet device, the sealing element 3 is sandwiched between the water outlet device 2 and the water outlet, enabling the water outlet device 2 to maintain a stable connection with the housing 1 while enhancing the sealing between the housing 1 and the water outlet device 2 and the water outlet, ensuring that all water flows through the inner body 22 and is discharged by the water outlet panel 21, thereby preventing water leakage through a gap between the housing 1 and the water outlet device 2 or gaps between internal components of the inner body 22.

[0018] In some embodiments, the step surface 11 is annular, and correspondingly, a plurality of equally spaced bosses 221 may be provided to be mated with the step surface 11, or an annular boss 221 may be provided to be mated with the step surface 11. When the boss 221 is annular, an outer diameter of the boss 221 is less than or equal to an outer diameter of the step surface 11. In the above two schemes, when both the step surface 11 and the boss 221 are annular, the most stable positional relationship between the boss 221 and the step surface 11 may be maintained.

[0019] In some embodiments, at least two bosses 221 are provided, and the bosses 221 are equally spaced around an axis of the inner body 22; correspondingly, at least two step surfaces 11 are provided, and each step surface 11 is matched one boss 221. In this scheme, at least two bosses 221 are provided, and the bosses are arranged at equal spacing to balance the forces acting on the water outlet device 2 at various positions in the circumferential direction, ensuring the stability between the water outlet device 2 and the housing 1. This scheme is suitable for the case where a specific installation angle is defined between the housing 1 and the water outlet device 2.

[0020] In some embodiments, at the water outlet end of the water outlet device 2, a gap is formed between the outer wall of the inner body 22 and the inner wall of the housing 1, to facilitate the assembly of the inner body 22 and the housing 1, thereby reducing the requirements for accuracy of parts and accuracy of mating between parts, lowering costs while improving production efficiency.

[0021] In some embodiments, the aerator further includes a sealing ring 4. The inner wall of the water outlet end of the water outlet device 2 is provided with a groove 41, and the sealing ring 4 is embedded in the groove 41. The water outlet panel 21 is pressed against an inner ring of the sealing ring 4 and the water outlet panel 21 is never in contact with the inner wall of the water outlet device 2, avoiding mutual interference between the water outlet panel 21 and the water outlet device 2, ensuring the smooth rotation of the water outlet panel 21, while ensuring the sealing of the water outlet device 2 to prevent water from seeping out from places other than discharge holes of the water outlet panel 21.

[0022] In some embodiments, when the water outlet end of the inner body 22 protrudes beyond an end face of the water outlet end of the housing 1, a spacing between the end face of the water outlet end of the inner body 22 and the end face of the water outlet end of the housing 1 is less than 10 mm, preferably, this spacing is 1-3 mm. To prevent the water flow with a specific water spray pattern generated by the water outlet panel 21 from being interfered with by the housing 1 during outward discharge, the water outlet end of the inner body 22 may slightly protrude beyond the end face of the water outlet end of the housing 1. If the spacing between the end face of the water outlet end of the inner body 22 and the end face of the water outlet end of the housing 1 is too large, the overall shape of the aerator and the water discharge apparatus may be limited, and if applied to a basin faucet, the already limited water outlet space under the faucet may be further reduced, affecting user experience. Therefore, limiting this spacing to be within 10 mm can ensure that the water outlet device 2 has the optimal water outlet distance, and this spacing of 1-3 mm may be considered as an optimal choice.

[0023] Referring to FIGS. 1-3, in at least one embodiment of the present disclosure:

[0024] an aerator includes a housing 1 and a water outlet device 2. A circumferential side wall of the housing 1 is provided with a step surface 11. The water outlet device 2 includes a water outlet panel 21 and an inner body 22, where the water outlet panel 21 is rotatably connected to a water outlet end of the inner body 22, and two water passing surfaces of the water outlet panel 21 in an axial direction are respectively provided with different flow straightening panels, so that different water spray patterns may be formed when the different flow straightening panels discharge water to the outside; a boss 221 is provided outside a water inlet end of the inner body 22, a distance r from an outer wall of the boss 221 to an axis of the inner body 22 is greater than a radius R of the water outlet end of the inner body 22; in an axial direction of the housing 1, the boss 221 is pressed against the step surface 11, and an inner diameter of the step surface 11 is greater than an outer diameter of the inner body 22. To prevent the water outlet panel 21 from forming a water flow with a specific water spray pattern (such as a wide-angle scattered atomized water or a wide-angle shower water) from being interfered with by the housing 1, the water outlet end of the inner body 22 protrudes beyond an end face of the water outlet end of the housing 1, and a spacing h between an end face of the water outlet end of the inner body 22 and the end face of the water outlet end of the housing 1 is 1 mm.

[0025] The outer wall of the housing 1 is provided with internal threads adjacent to the water inlet end, a sealing element 3 is provided on the side of the boss 221 away from the water outlet end of the inner body 22, part of the sealing element 3 is pressed against the boss 221, and the rest is pressed against the water inlet end of the inner body 22; when the housing 1 is connected to a water outlet apparatus via the internal threads, the sealing element 3 is caused to deform elastically since the end of external threads of the water outlet apparatus compresses the sealing element 3,, and the sealing element 3 is sandwiched between the water outlet apparatus and the components of the boss 221 and the water inlet end of the inner body 22.

[0026] The step surface 11 is annular, and the annular boss 221 is configured to be mated with this step surface 11, and the outer diameter of the boss 221 is slightly smaller than the outer diameter of the step surface 11.

[0027] The aerator further includes a sealing ring 4. The inner wall of the water outlet end of the water outlet device 2 is provided with a groove 41, the sealing ring 4 is embedded in the groove 41, the water outlet panel 21 is pressed against an inner ring of the sealing ring 4, and the water outlet panel 21 is never in contact with the inner wall of the water outlet device 2.

[0028] Referring to FIGS. 4 and 5, in some other embodiments, an outer wall of the housing 1 is provided with external threads adjacent to the water inlet end, an edge at the end of the external threads adjacent to the water outlet end of the housing 1, i.e., the end of the external threads closest to the water outlet end, is located closer to the water outlet end than the step surface 11. Moreover, in the axial direction of the water outlet device 2, a spacing d is formed between the side of the sealing element 3 away from the boss 221 and an end face of the water inlet end of the housing 1, and the spacing d is configured to ensure that the sealing element 3 protrudes from the end face of the water inlet end of the housing 1 to press against a water outlet of a faucet for sealing. Preferably, this spacing is less than the thickness of the sealing element 3, so that the end face of the housing 1 is higher than the bottom of the sealing element 3, thereby radially limiting the sealing element 3 and preventing the sealing element 3 from accidentally falling off before the aerator is installed onto the faucet.

[0029] The above descriptions are merely embodiments of the present disclosure and do not limit the patent scope of the present disclosure. Any equivalent transformations made or direct or indirect applications in related technical fields using the content of the specification and drawings of the present disclosure are included within the patent protection scope of the present disclosure.

Examples

Embodiment Construction

[0013]To elaborate on the technical contents, objectives, and effects achieved of the present disclosure, the following description is provided in conjunction with the embodiments and the accompanying drawings.

[0014]Referring to FIGS. 1-5, an aerator includes a housing 1 and a water outlet device 2. A circumferential sidewall of the housing 1 is provided with a step surface 11. The water outlet device 2 includes a water outlet panel 21 and an inner body 22. The water outlet panel 21 is rotatably connected to a water outlet end of the inner body 22 to form different water spray patterns. A boss 221 is provided outside a water inlet end of the inner body 22. A distance from an outer wall of the boss 221 to the axis of the inner body 22 is greater than a radius of the water outlet end of the inner body 22, to connect the inner body 22 to the housing 1. The boss 221 is pressed against the step surface 11 in an axial direction of the housing 1.

[0015]It can be understood that in the afore...

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application is a continuation application of International Patent Application No. PCT / CN 2024 / 117662, filed on Sep. 9, 2024, which claims priority of Chinese Patent Application No. 202322529935.6, filed on Sep. 18, 2023, the entire contents of which are incorporated herein by reference.TECHNICAL FIELD

[0002] The present disclosure relates to the field of water outlet structures of sanitary ware products, and in particular, to a water outlet device and an aerator.BACKGROUND

[0003] In the prior art, a novel water outlet structure, which changes water spray patterns by flipping a water spray pattern former, has emerged. However, this scheme has the following problems: to ensure the stability of the connection between an inner body and a housing, there are numerous mating relationships between the housing and the internal components of the inner body. Furthermore, in some schemes, it is also necessary to utilize the mating relationships between the housing and the internal components to limit a sealing element, imposing high requirements on the precision of their mating. For such water outlet structures, it is generally necessary to equip the inner body with a housing having a specific assembly structure for the two to be mutually compatible. Therefore, each time a new water outlet structure is developed, a separate mold must be created to produce the compatible housing, leading to increased production costs.SUMMARY

[0004] The present disclosure relates to a water outlet device, including a water outlet panel and an inner body, where the water outlet panel is rotatably connected to a water outlet end of the inner body to form different water spray patterns, a boss is provided outside a water inlet end of the inner body, and a distance from an outer wall of the boss to an axis of the inner body is greater than a radius of the water outlet end of the inner body, to connect the inner body to a housing.

[0005] The present disclosure also relates to an aerator, including a housing and the water outlet device as described above, where

[0006] a circumferential side wall of the housing is provided with a step surface, and an inner diameter of the step surface is greater than an outer diameter of the inner body; and

[0007] the boss is pressed against the step surface in an axial direction of the housing.BRIEF DESCRIPTION OF THE DRAWINGS

[0008] FIG. 1 is an exploded view of an aerator according to the present disclosure;

[0009] FIG. 2 is a first cross-sectional view and a partial enlarged view of an aerator according to some embodiments of the present disclosure;

[0010] FIG. 3 is a second cross-sectional view of an aerator according to some embodiments of the present disclosure;

[0011] FIG. 4 is a first cross-sectional view of an aerator in some embodiments of the present disclosure; and

[0012] FIG. 5 is a second cross-sectional view of an aerator in some embodiments of the present disclosure.DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] To elaborate on the technical contents, objectives, and effects achieved of the present disclosure, the following description is provided in conjunction with the embodiments and the accompanying drawings.

[0014] Referring to FIGS. 1-5, an aerator includes a housing 1 and a water outlet device 2. A circumferential sidewall of the housing 1 is provided with a step surface 11. The water outlet device 2 includes a water outlet panel 21 and an inner body 22. The water outlet panel 21 is rotatably connected to a water outlet end of the inner body 22 to form different water spray patterns. A boss 221 is provided outside a water inlet end of the inner body 22. A distance from an outer wall of the boss 221 to the axis of the inner body 22 is greater than a radius of the water outlet end of the inner body 22, to connect the inner body 22 to the housing 1. The boss 221 is pressed against the step surface 11 in an axial direction of the housing 1.

[0015] It can be understood that in the aforementioned prior art, the flipping of the water outlet panel relies on the joint support of the inner body and the housing, that is, both the housing and the inner body together define an assembly structure for the water outlet panel to be flipped. In the present disclosure, the inner body, as an independent functional unit with a function of switching water spray patterns, can achieve the flipping of the water outlet panel 21 even without the housing. Moreover, due to the provision of the boss, the inner body may be embedded into any housing with a single step, eliminating the need for custom molding for each housing product. By providing the boss 221, which is pressed against the water inlet end of the housing 1, the impact force of water pressure on the inner body 22 can be resisted through the cooperation between a faucet and the boss 221, ensuring that the inner body 22 remains suspended within the housing 1, and maintaining a stable connection between the inner body 22 and the housing 1 after simplifying the connection structure. Additionally, the flipping of the water outlet panel 21 allows for changes in the water spray patterns, enabling the water outlet device 2 to form a plurality of water spray patterns even without rotating the housing 1. As long as the distance r from the outer wall of the boss 221 to the axis of the inner body 22 is greater than the radius R of the water outlet end of the inner body 22, the boss 221 can be mated with a step surface whose inner diameter is greater than that of the inner body 22 but smaller than that of the boss 221, that is, as long as the outer diameter of the boss 221 is always greater than the maximum outer diameter of the inner body 22, the inner body may be embedded into the corresponding housing. An optimal scheme is to form a spacing between an outer wall of the inner body 22 and an inner wall of the step surface. In this way, the precision requirements for the dimensions of mating between the outer wall of the inner body 22 and the inner wall of the housing 1 during assembly can be reduced, thereby reducing the forming and processing accuracy requirements for the inner wall surface of the housing 1, reducing costs and improving production efficiency.

[0016] In some embodiments, an inner wall of the housing 1 is provided with internal threads adjacent to the water inlet end, and the internal threads are located between the step surface 11 and an end face of the water inlet end of the housing 1, facilitating the screwing-in of water outlet devices such as quick-opening faucets, basin faucets, kitchen faucets, or shower faucets with external threads; alternatively, an outer wall of the housing 1 is provided with external threads adjacent to the water inlet end, and an edge of at the side of the external threads close to the water outlet end of the housing 1 is located closer to the water outlet end than the step surface 11, facilitating the screwing-in of water outlet devices such as basin faucets with internal threads. The housing 1 may be connected to different water outlet apparatuses through the internal threads or external threads, improving the connection compatibility between the housing 1 and various water outlet apparatuses while also concealing the inner body within the housing, making the appearance of the apparatuses more unified.

[0017] In some embodiments, a sealing element 3 is provided on a side of the boss 221 away from the water outlet end of the inner body 22. After the housing 1 is threadedly connected to a water outlet of the water outlet device, the sealing element 3 is sandwiched between the water outlet device 2 and the water outlet, enabling the water outlet device 2 to maintain a stable connection with the housing 1 while enhancing the sealing between the housing 1 and the water outlet device 2 and the water outlet, ensuring that all water flows through the inner body 22 and is discharged by the water outlet panel 21, thereby preventing water leakage through a gap between the housing 1 and the water outlet device 2 or gaps between internal components of the inner body 22.

[0018] In some embodiments, the step surface 11 is annular, and correspondingly, a plurality of equally spaced bosses 221 may be provided to be mated with the step surface 11, or an annular boss 221 may be provided to be mated with the step surface 11. When the boss 221 is annular, an outer diameter of the boss 221 is less than or equal to an outer diameter of the step surface 11. In the above two schemes, when both the step surface 11 and the boss 221 are annular, the most stable positional relationship between the boss 221 and the step surface 11 may be maintained.

[0019] In some embodiments, at least two bosses 221 are provided, and the bosses 221 are equally spaced around an axis of the inner body 22; correspondingly, at least two step surfaces 11 are provided, and each step surface 11 is matched one boss 221. In this scheme, at least two bosses 221 are provided, and the bosses are arranged at equal spacing to balance the forces acting on the water outlet device 2 at various positions in the circumferential direction, ensuring the stability between the water outlet device 2 and the housing 1. This scheme is suitable for the case where a specific installation angle is defined between the housing 1 and the water outlet device 2.

[0020] In some embodiments, at the water outlet end of the water outlet device 2, a gap is formed between the outer wall of the inner body 22 and the inner wall of the housing 1, to facilitate the assembly of the inner body 22 and the housing 1, thereby reducing the requirements for accuracy of parts and accuracy of mating between parts, lowering costs while improving production efficiency.

[0021] In some embodiments, the aerator further includes a sealing ring 4. The inner wall of the water outlet end of the water outlet device 2 is provided with a groove 41, and the sealing ring 4 is embedded in the groove 41. The water outlet panel 21 is pressed against an inner ring of the sealing ring 4 and the water outlet panel 21 is never in contact with the inner wall of the water outlet device 2, avoiding mutual interference between the water outlet panel 21 and the water outlet device 2, ensuring the smooth rotation of the water outlet panel 21, while ensuring the sealing of the water outlet device 2 to prevent water from seeping out from places other than discharge holes of the water outlet panel 21.

[0022] In some embodiments, when the water outlet end of the inner body 22 protrudes beyond an end face of the water outlet end of the housing 1, a spacing between the end face of the water outlet end of the inner body 22 and the end face of the water outlet end of the housing 1 is less than 10 mm, preferably, this spacing is 1-3 mm. To prevent the water flow with a specific water spray pattern generated by the water outlet panel 21 from being interfered with by the housing 1 during outward discharge, the water outlet end of the inner body 22 may slightly protrude beyond the end face of the water outlet end of the housing 1. If the spacing between the end face of the water outlet end of the inner body 22 and the end face of the water outlet end of the housing 1 is too large, the overall shape of the aerator and the water discharge apparatus may be limited, and if applied to a basin faucet, the already limited water outlet space under the faucet may be further reduced, affecting user experience. Therefore, limiting this spacing to be within 10 mm can ensure that the water outlet device 2 has the optimal water outlet distance, and this spacing of 1-3 mm may be considered as an optimal choice.

[0023] Referring to FIGS. 1-3, in at least one embodiment of the present disclosure:

[0024] an aerator includes a housing 1 and a water outlet device 2. A circumferential side wall of the housing 1 is provided with a step surface 11. The water outlet device 2 includes a water outlet panel 21 and an inner body 22, where the water outlet panel 21 is rotatably connected to a water outlet end of the inner body 22, and two water passing surfaces of the water outlet panel 21 in an axial direction are respectively provided with different flow straightening panels, so that different water spray patterns may be formed when the different flow straightening panels discharge water to the outside; a boss 221 is provided outside a water inlet end of the inner body 22, a distance r from an outer wall of the boss 221 to an axis of the inner body 22 is greater than a radius R of the water outlet end of the inner body 22; in an axial direction of the housing 1, the boss 221 is pressed against the step surface 11, and an inner diameter of the step surface 11 is greater than an outer diameter of the inner body 22. To prevent the water outlet panel 21 from forming a water flow with a specific water spray pattern (such as a wide-angle scattered atomized water or a wide-angle shower water) from being interfered with by the housing 1, the water outlet end of the inner body 22 protrudes beyond an end face of the water outlet end of the housing 1, and a spacing h between an end face of the water outlet end of the inner body 22 and the end face of the water outlet end of the housing 1 is 1 mm.

[0025] The outer wall of the housing 1 is provided with internal threads adjacent to the water inlet end, a sealing element 3 is provided on the side of the boss 221 away from the water outlet end of the inner body 22, part of the sealing element 3 is pressed against the boss 221, and the rest is pressed against the water inlet end of the inner body 22; when the housing 1 is connected to a water outlet apparatus via the internal threads, the sealing element 3 is caused to deform elastically since the end of external threads of the water outlet apparatus compresses the sealing element 3,, and the sealing element 3 is sandwiched between the water outlet apparatus and the components of the boss 221 and the water inlet end of the inner body 22.

[0026] The step surface 11 is annular, and the annular boss 221 is configured to be mated with this step surface 11, and the outer diameter of the boss 221 is slightly smaller than the outer diameter of the step surface 11.

[0027] The aerator further includes a sealing ring 4. The inner wall of the water outlet end of the water outlet device 2 is provided with a groove 41, the sealing ring 4 is embedded in the groove 41, the water outlet panel 21 is pressed against an inner ring of the sealing ring 4, and the water outlet panel 21 is never in contact with the inner wall of the water outlet device 2.

[0028] Referring to FIGS. 4 and 5, in some other embodiments, an outer wall of the housing 1 is provided with external threads adjacent to the water inlet end, an edge at the end of the external threads adjacent to the water outlet end of the housing 1, i.e., the end of the external threads closest to the water outlet end, is located closer to the water outlet end than the step surface 11. Moreover, in the axial direction of the water outlet device 2, a spacing d is formed between the side of the sealing element 3 away from the boss 221 and an end face of the water inlet end of the housing 1, and the spacing d is configured to ensure that the sealing element 3 protrudes from the end face of the water inlet end of the housing 1 to press against a water outlet of a faucet for sealing. Preferably, this spacing is less than the thickness of the sealing element 3, so that the end face of the housing 1 is higher than the bottom of the sealing element 3, thereby radially limiting the sealing element 3 and preventing the sealing element 3 from accidentally falling off before the aerator is installed onto the faucet.

[0029] The above descriptions are merely embodiments of the present disclosure and do not limit the patent scope of the present disclosure. Any equivalent transformations made or direct or indirect applications in related technical fields using the content of the specification and drawings of the present disclosure are included within the patent protection scope of the present disclosure.

Examples

Embodiment Construction

[0013]To elaborate on the technical contents, objectives, and effects achieved of the present disclosure, the following description is provided in conjunction with the embodiments and the accompanying drawings.

[0014]Referring to FIGS. 1-5, an aerator includes a housing 1 and a water outlet device 2. A circumferential sidewall of the housing 1 is provided with a step surface 11. The water outlet device 2 includes a water outlet panel 21 and an inner body 22. The water outlet panel 21 is rotatably connected to a water outlet end of the inner body 22 to form different water spray patterns. A boss 221 is provided outside a water inlet end of the inner body 22. A distance from an outer wall of the boss 221 to the axis of the inner body 22 is greater than a radius of the water outlet end of the inner body 22, to connect the inner body 22 to the housing 1. The boss 221 is pressed against the step surface 11 in an axial direction of the housing 1.

[0015]It can be understood that in the afore...

Claims

1. A water outlet device, comprising: a water outlet panel and an inner body, the water outlet panel being rotatably connected to a water outlet end of the inner body to form different water spray patterns, wherein a boss is provided outside a water inlet end of the inner body, and a distance from an outer wall of the boss to an axis of the inner body is greater than a radius of the water outlet end of the inner body, to connect the inner body to a housing.

2. The water outlet device according to claim 1, wherein at least two bosses are provided, and the bosses are equally spaced around an axis of the inner body.

3. The water outlet device according to claim 1, wherein the boss is annular.

4. The water outlet device according to claim 1, wherein a sealing element is provided on a side of the boss away from the water outlet end of the inner body.

5. An aerator, comprising: a housing and the water outlet device according to claim 1, wherein:a circumferential side wall of the housing is provided with a step surface, and an inner diameter of the step surface is greater than an outer diameter of the inner body; andthe boss is pressed against the step surface in an axial direction of the housing.

6. The aerator according to claim 5, wherein an outer diameter of the boss is less than or equal to an outer diameter of the step surface.

7. The aerator according to claim 5, wherein the step surface is annular.

8. The aerator according to claim 5, wherein at least two step surfaces are provided, and each of the step surfaces is matched with one boss.

9. The aerator according to claim 5, wherein at least two bosses are provided, and the bosses are equally spaced around an axis of the inner body.

10. The aerator according to claim 7, wherein the boss is annular.

11. The aerator according to claim 5, wherein an inner wall of the housing is provided with internal threads adjacent to the water inlet end, and the internal threads are located between the step surface and an end face of the water inlet end of the housing.

12. The aerator according to claim 5, wherein an outer wall of the housing is provided with external threads adjacent to the water inlet end, and an edge at the end of the external threads adjacent to the water outlet end of the housing is located closer to the water outlet end than the step surface.

13. The aerator according to claim 5, wherein when the water outlet end of the inner body protrudes beyond an end face of the water outlet end of the housing, a spacing between the end face of the water outlet end of the inner body and the end face of the water outlet end of the housing is less than 10 mm.

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