A water spray device and a toilet spray washing device

Abstract

A water spraying device and a toilet washing device include a nozzle body with a spherical vortex chamber. The vortex chamber connects a first water inlet channel and a water outlet, with the water outlet located at the upper end of the vortex chamber. This causes the water's trajectory within the vortex chamber to change regularly during water intake, resulting in the water sprayed from the water outlet switching between a bud-like spray and a concentrated spray. Compared to multi-water-path or multi-outlet solutions, the automatic back-and-forth switching of water spray with a single water inlet and a single outlet proposed in this invention has a simple structure and lower production costs.

Description

Technical Field

[0001] This invention relates to the field of intelligent toilet cleaning nozzle devices, and more particularly to a water spray device and a toilet spray washing device. Background Technology

[0002] Currently, the spray washing function is a standard feature of smart toilets, used for posterior washing and / or feminine washing after defecation. The spray washing function of smart toilets is typically implemented using a spray device, where a nozzle is installed at the front of the spray bar to dispense posterior washing water and / or feminine washing water. Currently, the water flow pattern for posterior washing and / or feminine washing is mostly a single water jet, and the water spray pattern cannot be changed. To overcome the shortcomings of existing technology, multi-water-path or multi-outlet technologies have emerged to achieve various water flow patterns to meet user needs. However, multi-water-path or multi-outlet technologies are structurally more complex and have higher production costs. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the purpose of this invention is to provide a water spray device and a toilet spray washing device.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A water spraying device includes a nozzle body, the nozzle body having a spherical swirling cavity, the swirling cavity having a first water inlet channel and a water outlet; the water outlet is located at the upper part of the swirling cavity and is located on the central axis of the swirling cavity.

[0006] The first water inlet channel is connected to the first water inlet of the nozzle body. The water outlet of the first water inlet channel is tangent to the inner wall of the vortex chamber and can conform to the area of ​​the vortex chamber to generate rotating water flow. After the water output from the water outlet of the first water inlet channel undergoes an upward centrifugal rotation motion against the inner wall of the vortex chamber, part of the water is sprayed out from the water outlet to form a flower bud water spray.

[0007] Another part of the water falls around the inner wall of the swirling cavity and rises, colliding with the part of the water flow delivered by the first inlet channel. After losing the speed of centrifugal rotation, it is sprayed out from the outlet to form a cluster of water droplets.

[0008] After the water output from the first inlet channel continues to rotate centrifugally around the vortex chamber, some of the water is sprayed out again from the outlet to form flower bud water spray, while the other part of the water forms aggregated water spray, so that the water sprayed from the nozzle body switches back and forth between flower bud water spray and aggregated water spray.

[0009] Furthermore, the vertical distance between the outlet end of the first water inlet channel and the central axis of the vortex chamber is no more than 2mm, and the central axis is perpendicular to the central axis.

[0010] Furthermore, the water outlet includes a water outlet hole and a guide groove. The water outlet hole is connected to the upper end of the vortex chamber, and the guide groove is located on the outward side of the water outlet hole. The radial dimension of the guide groove is larger than the radial dimension of the water outlet hole.

[0011] Furthermore, the water outlet has a first aperture ratio, a second aperture ratio, and a guide ratio. The first aperture ratio is the ratio between the radial dimension of the water outlet and its height. The second aperture ratio is the ratio between the radial dimension at the water outlet of the guide groove and its height. The guide ratio is the ratio between the radial dimension of the water outlet and the radial dimension at the water outlet of the guide groove. The range of the first aperture ratio is 1:1.2 to 1:2; the range of the second aperture ratio is 1:2 to 1:4; and the range of the guide ratio is 1:1.3 to 1:2.

[0012] Furthermore, the ratio between the diameter of the first inlet channel and the diameter of the outlet hole constitutes the third aperture ratio, which ranges from 1.2:1 to 1.4:1.

[0013] Furthermore, when the vortex cavity is spherical, the ratio between the aperture of the first water inlet channel and the inner diameter of the vortex cavity constitutes the sphere diameter ratio, which ranges from 10:1 to 13:1.

[0014] Furthermore, the vortex cavity is composed of an upper hemisphere and a lower hemisphere, which are symmetrical about the connection point. The upper and lower hemispheres are respectively provided with an upper water inlet channel and a lower water inlet channel, which are connected to each other to form a first water inlet channel. The top of the upper hemisphere is provided with a water outlet. Alternatively, when the upper and lower hemispheres are asymmetrical, the top of the upper hemisphere is provided with a water outlet, and the first water inlet channel is provided with the larger of the two hemispheres.

[0015] Furthermore, the vortex chamber is composed of an asymmetrically arranged left hemisphere and a right hemisphere, with the first water inlet channel located in either the left or right hemisphere and the water outlet located at the upper end of either the left or right hemisphere.

[0016] Furthermore, the upper end of one of the left or right hemispherical cavities is provided with a water outlet to form a protrusion, and the other is provided with a recess that matches the protrusion.

[0017] Furthermore, it also includes a second water inlet channel, one end of which is connected to the second water inlet of the nozzle body, and the other end is connected to the vortex chamber.

[0018] Furthermore, the second water inlet channel is located in the middle of the vortex chamber, and the water outlet direction is towards the central axis of the vortex chamber. It is not tangent to the inner wall of the vortex chamber. When the first water inlet channel is not filled with water and the second water inlet channel is filled with water, the water flows out from the outlet, forming a single cluster of water droplets.

[0019] Furthermore, the second water inlet channel is located away from the center of the vortex chamber, and the water outlet direction is tangent to the inner wall of the vortex chamber. When the first water inlet channel is not filled with water and the second water inlet channel is filled with water, the water flows out from the outlet, forming a single flower bud water splash.

[0020] A toilet spray washing device includes a spray bar and a water spray device as described above. The water spray device is installed at the front end of the spray bar and forms the water outlet terminal of the spray bar.

[0021] The beneficial effects of this invention are:

[0022] 1. This invention proposes a water spraying device, comprising a nozzle body with a spherical vortex cavity. The vortex cavity connects a first water inlet channel and a water outlet, with the water outlet located at the upper end of the vortex cavity. This causes the water's trajectory within the vortex cavity to change regularly during the water inlet process, resulting in the water sprayed from the water outlet switching between bud-like sprays and concentrated sprays. Compared to multi-channel or multi-outlet solutions, the automatic back-and-forth switching of water sprays with a single water inlet channel and a single water outlet proposed in this invention has a simple structure and lower production costs.

[0023] 2. In the water spray device proposed in this invention, the position of the first water inlet channel entering the vortex cavity affects the effect of automatic water spray variation. The further away from the central symmetry plane, the worse the effect of automatic water spray variation. The flow channel is symmetrically arranged with the central symmetry plane of the sphere, resulting in the best effect. Therefore, the first water inlet channel is connected to the central position of the vortex cavity.

[0024] 3. The water spraying device proposed in this invention includes a water outlet and a guide groove. The water outlet is connected to the upper end of the vortex cavity, and the guide groove is located on the side of the water outlet facing outward. The radial dimension of the guide groove is larger than the radial dimension of the water outlet, so that the water sprayed from the guide groove has an internal cavity structure, forming flower bud water.

[0025] 4. The water spraying device proposed in this invention has a first aperture ratio, a second aperture ratio, and a guide ratio in the water outlet section. The size of the water spray is controlled by adjusting the specific values ​​of the first aperture ratio, the second aperture ratio, and the guide ratio.

[0026] 5. The water spraying device proposed in this invention has a third aperture ratio, wherein the ratio between the aperture of the first inlet channel and the aperture of the outlet hole constitutes a third aperture ratio, and the ratio between the aperture of the first inlet channel and the inner diameter of the vortex cavity constitutes a sphere diameter ratio. The effect of dynamic changes in water spray is controlled by controlling the specific values ​​of the third aperture ratio and the sphere diameter ratio.

[0027] 6. The water spray device proposed in this invention, considering the spatial structure limitations of the product, can be composed of an upper hemisphere and a lower hemisphere, or a left hemisphere and a right hemisphere, while meeting the requirements of the water outlet pattern. This invention proposes multiple configuration styles of the swirling cavity, thus expanding its applicable range.

[0028] 7. The water spraying device proposed in this invention is further provided with a second water inlet channel. By controlling whether water enters the first water inlet channel and the second water inlet channel, the switching between various water spray patterns can be realized, thereby achieving the function of multiple water sprays in a single cavity. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the invention 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 the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of a first embodiment of a water spraying device according to the present invention;

[0031] Figure 2 This is one of the exploded views of a water spraying device according to a first embodiment of the present invention;

[0032] Figure 3 This is a second exploded view of a first embodiment of a water spraying device of the present invention;

[0033] Figure 4 This is a cross-sectional view of a first embodiment of a water spraying device according to the present invention;

[0034] Figure 5 This is a schematic diagram of the water path in one embodiment of a water spraying device according to the present invention;

[0035] Figure 6 This is a second schematic diagram of the water path in an embodiment of the water spraying device of the present invention;

[0036] Figure 7 This is a schematic diagram of the swirling cavity in a first embodiment of the water spraying device of the present invention;

[0037] Figure 8 for Figure 7 The cross-sectional view of the vortex cavity shown;

[0038] Figure 9 This is a schematic diagram of the left and right asymmetrical swirling cavity in a second embodiment of the water spraying device of the present invention;

[0039] Figure 10This is a schematic diagram of the upper and lower asymmetric swirling cavities in a second embodiment of the water spraying device of the present invention;

[0040] Figure 11 This is a schematic diagram of a third embodiment of the water spraying device of the present invention;

[0041] Figure 12 This is a schematic diagram of the water spraying device for flower buds according to the present invention;

[0042] Figure 13 This is a schematic diagram of water collection in a water spray device according to the present invention;

[0043] In the diagram, 10 is the upper cover; 20 is the lower cover; 30 is the vortex cavity; 401 is the first water inlet channel; 402 is the second water inlet channel; 501 is the first water inlet; 502 is the second water inlet; 601 is the water outlet; 602 is the guide groove; 701 is the upper hemisphere cavity; 702 is the lower hemisphere cavity; 801 is the left hemisphere cavity; 802 is the right hemisphere cavity; 803 is the protrusion; 804 is the recess; 901 is the upper water inlet channel; 902 is the lower water inlet channel; 1001 is the central axis; 1002 is the central axis surface. Detailed Implementation

[0044] The following is combined Figure 1-13 The present invention will be described in detail below.

[0045] Example 1

[0046] A water spraying device includes a nozzle body, the nozzle body having a spherical swirling cavity 30, the swirling cavity 30 having a first water inlet channel 401 and a water outlet; the water outlet is located on the upper part of the swirling cavity 30 and is located on the central axis 1001 of the swirling cavity 30.

[0047] The first water inlet channel 401 is connected to the first water inlet 501 of the nozzle body. The water outlet of the first water inlet channel 401 is tangent to the inner wall of the vortex cavity 30 and can conform to the area of ​​the inner wall of the vortex cavity 30 to generate a rotating water flow. After the water output from the water outlet of the first water inlet channel 401 undergoes an upward centrifugal rotation motion against the inner wall of the vortex cavity 30, part of the water is sprayed out from the water outlet to form a flower bud water spray.

[0048] Another part of the water body falls around the inner wall of the swirling cavity 30 and rises, collides with the part of the water flow transported by the first water inlet channel 401, loses the speed of centrifugal rotation, and is sprayed out from the water outlet to form a cluster of water droplets.

[0049] After the water output from the first water inlet channel 401 continues to rotate centrifugally around the vortex cavity 30, some of the water is sprayed out again from the outlet to form flower bud water spray, and another part of the water forms aggregated water spray, so that the water sprayed out by the nozzle body switches back and forth between flower bud water spray and aggregated water spray.

[0050] Therefore, the water spraying device proposed in this invention allows the water sprayed from the outlet to switch back and forth between bud water spray and aggregated water spray during the water intake process of the first water inlet channel 401.

[0051] In this embodiment, when water enters the first water inlet channel 401, the water flows tangentially to the surface of the vortex cavity 30 along the first water inlet channel 401 and enters the vortex cavity 30. Under the action of the spherical vortex cavity 30, part of the water flows towards the upper part of the vortex cavity 30, and the other part flows towards the lower part of the vortex cavity 30. The water flowing towards the upper part of the vortex cavity 30 is first ejected from the water outlet 601. The ejected water flows out in a rotating motion along the inner wall of the guide groove 602. At this time, the water flows at the water outlet of the guide groove 602 to form a water splash with a cavity, that is, a flower bud-shaped water splash, such as... Figure 12 As shown. Meanwhile, the water flowing towards the lower part of the vortex cavity 30, due to space constraints, can only move in the opposite direction towards the upper part of the vortex cavity 30 after reaching the bottom, thus colliding with the water flowing in from the first inlet channel 401. This causes the overall water flow speed within the vortex cavity 30 to decrease. In this state, when the water flows out from the outlet hole 601, it lacks sufficient centrifugal force to rotate and flow out against the inner wall, resulting in a water spray effect that appears as a collection of water, such as... Figure 13 As shown.

[0052] In this embodiment, since the position of the first water inlet channel 401 entering the vortex cavity 30 affects the effect of automatic water splash variation, the further away from the central symmetry plane, the worse the effect of automatic water splash variation. Therefore, the vertical distance between the water inlet end of the first water inlet channel 401 and the central axis surface 1002 of the vortex cavity 30 is no more than 2mm. That is, the highest position of the water inlet end of the first water inlet channel 401 is 2mm above the central axis surface 1002, and the lowest position of the water inlet end of the first water inlet channel 401 is 2mm below the central axis surface 1002. The central axis surface 1002 is perpendicular to the central axis 1001. When the vortex cavity 30 is a spherical cavity, its horizontal symmetry plane constitutes the central axis surface 1002. Furthermore, the effect is best when the water inlet end of the first water inlet channel 401 is located at the central axis surface 1002 of the vortex cavity 30. Figure 4 As shown.

[0053] In this embodiment, the water outlet includes a water outlet 601 and a guide groove 602. The water outlet 601 is connected to the upper end of the vortex cavity 30. The guide groove 602 is located on the outward side of the water outlet 601, and the radial dimension of the guide groove 602 is larger than the radial dimension of the water outlet 601, so that the water sprayed from the guide groove 602 has an internal cavity structure, forming flower bud water.

[0054] In this embodiment, as Figure 4As shown, the water outlet section has a first aperture ratio, a second aperture ratio, and a guide ratio. The first aperture ratio is the ratio between the radial dimension a of the water outlet 601 and its height b, i.e., a / b, specifically, a / b = 1:1.2 to 1:2. The second aperture ratio is the ratio between the radial dimension c at the outlet of the guide groove 602 and its height d, i.e., c / d, specifically, c / d = 1:2 to 1:4. The guide ratio is the ratio between the radial dimension a of the water outlet 601 and the radial dimension c at the outlet of the guide groove 602, i.e., a / c, specifically, a / c = 1:1.3 to 1:2. The size of the water spray can be adjusted by adjusting the specific values ​​of the first aperture ratio, the second aperture ratio, and the guide ratio according to actual production needs.

[0055] In this embodiment, the ratio between the radial dimension e of the first water inlet channel 401 and the radial dimension a of the water outlet 601 constitutes the third aperture ratio, namely e / a, specifically, e / a = 1.2:1 to 1.4:1. Furthermore, the vortex cavity 30 is elliptical or spherical, causing the water velocity to continuously increase during flow. When the vortex cavity 30 is spherical, the ratio between the inner diameter of the vortex cavity 30 and the first water inlet channel 401 constitutes the spherical diameter ratio, namely f / e, specifically, f / e = 10:1 to 13:1. By controlling the specific values ​​of the third aperture ratio and the spherical diameter ratio, the dynamic changes in water flow can be controlled.

[0056] In this embodiment, the period of dynamic opening and closing of the water splash is related to the size of the ball cavity and the magnitude of the inlet water pressure. When other conditions remain unchanged, the larger the ball cavity, the slower the opening and closing action, and the longer the time of one opening and closing cycle. Alternatively, when other conditions remain unchanged, the greater the inlet water pressure, the faster the opening and closing action, and the shorter the time of one opening and closing cycle. Furthermore, the opening and closing cycle is 0.2 to 0.3 seconds.

[0057] In this embodiment, the spraying device includes an upper cover 10 and a lower cover 20. The spherical vortex cavity 30 is composed of an upper vortex cavity and a lower vortex cavity that are symmetrically arranged. Therefore, the upper cover 10 has an upper vortex cavity, and the lower cover 20 has a lower vortex cavity. The upper cover 10 has an upper water inlet channel 901, and the lower cover 20 has a lower water inlet channel 902. The upper water inlet channel 901 and the lower water inlet channel 902 are adapted to each other to form a first water inlet channel 401. The upper cover 10 has a first water inlet 501, which is connected to the vortex cavity 30 through the first water inlet channel 401.

[0058] The present invention also proposes a toilet spray washing device, including a spray bar and a water spray device as described above. The water spray device is installed at the front end of the spray bar and constitutes the water outlet terminal of the spray bar.

[0059] Example 2

[0060] The difference from Embodiment 1 is that this embodiment proposes a vortex cavity 30 with asymmetrical connections between the upper and lower parts and between the left and right parts.

[0061] like Figure 10 As shown, the vortex cavity 30 is composed of an asymmetrical upper hemisphere cavity 701 and a lower hemisphere cavity 702. The top of the upper hemisphere cavity 701 is provided with a water outlet. The first water inlet channel 401 is located in the larger of the upper hemisphere cavity 701 and the lower hemisphere cavity 702. Compared with the symmetrical splicing method of the upper and lower hemispheres, the influence of the fitting problems caused by the assembly process on the flow direction and velocity of the water in the first water inlet channel 401 is reduced.

[0062] like Figure 9 As shown, the vortex cavity 30 is composed of an asymmetrically arranged left hemisphere cavity 801 and a right hemisphere cavity 802. The first water inlet channel 401 is located in either the left hemisphere cavity 801 or the right hemisphere cavity 802, and the water outlet is located at the upper end of either the left hemisphere cavity 801 or the right hemisphere cavity 802. Furthermore, the upper end of one of the left hemisphere cavity 801 or the right hemisphere cavity 802 is provided with a water outlet to form a protrusion 803, and the other is provided with a recess 804 that is adapted to the protrusion 803. Compared with the upper and lower combination method, this reduces the impact of fitting problems caused by the assembly process on the flow direction and velocity of the water inlet channel 401.

[0063] Example 3

[0064] This embodiment, based on Embodiment 1, also includes a second water inlet channel 402, such as... Figure 3 As shown, one end of the second water inlet channel 402 is connected to the second water inlet 502 of the nozzle body, and the other end is connected to the vortex cavity 30. This allows the vortex cavity 30 to not only have a first water inlet channel 401 tangent to the vortex cavity 30 to achieve automatic water splashing, but also to use the second water inlet channel 402 to connect to different positions of the vortex cavity 30 to achieve water inlet and generate other water splashes.

[0065] In this embodiment, as Figure 3 As shown, the second water inlet channel 402 is located in the middle of the vortex cavity 30, and the water outlet direction is towards the central axis of the vortex cavity 30. It is not tangent to the inner wall of the vortex cavity 30. When the first water inlet channel 401 is not filled with water and the second water inlet channel 402 is filled with water, the water flow rotates irregularly in the vortex cavity 30, and the water flows out from the outlet, forming a single concentrated water splash.

[0066] In other embodiments, the second water inlet channel 402 is located away from the center of the vortex cavity 30, that is, the second water inlet channel 402 has the upper half or lower half of the vortex cavity 30, and the water outlet direction is tangential to the inner wall of the vortex cavity 30, such as... Figure 11As shown, when the first water inlet channel 401 is not filled with water and the second water inlet channel 402 is filled with water, the water flows in a regular rotation in the vortex chamber 30. However, since the flow rate cannot meet the requirements for the water splash to change automatically, the water flows out from the outlet and forms a single flower bud water splash.

[0067] In other embodiments, the second water inlet channel 402 is connected to the upper or lower half of the vortex cavity 30. The water outlet direction does not pass through the central axis of the vortex cavity 30 and is not tangent to the vortex cavity 30. Instead, it is located closer to the central axis of the vortex cavity 30. Since the flow velocity is greatly lost after the water flow impacts the inner wall of the vortex cavity 30, the water flow has a certain rotation speed in the vortex cavity 30. However, after being discharged from the water outlet 601, there is not enough centripetal force to overcome the tension of the water. At this time, the water droplets are concentrated water droplets. If the diameter of the vortex cavity 30 is reduced while the position of the second water inlet channel 402 remains unchanged, the rotation speed loss will be less when the curvature of the inner wall is large enough, and the water droplets can be transformed into flower bud water droplets.

[0068] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand and implement the present invention. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A water spraying device, comprising a nozzle body, characterized in that, The nozzle body has a spherical swirling cavity, which has a first water inlet channel and a water outlet. The water outlet is located at the upper part of the swirling cavity and is situated on the central axis of the swirling cavity. The first water inlet channel is connected to the first water inlet of the nozzle body. The water outlet of the first water inlet channel is tangent to the inner wall of the vortex cavity and can conform to the area of ​​the inner wall of the vortex cavity to generate a rotating water flow. After the water output from the water outlet of the first water inlet channel undergoes an upward centrifugal rotation motion against the inner wall of the vortex cavity, part of the water is sprayed out from the water outlet to form a flower bud water spray. Another portion of the water falls around the inner wall of the swirling cavity and rises, colliding with a portion of the water output from the first inlet channel. After losing the speed of centrifugal rotation, they are sprayed out together from the outlet to form a cluster of water droplets. After the water output from the first water inlet channel continues to rotate centrifugally around the vortex cavity, part of the water is sprayed out again from the water outlet to form a flower bud water spray, and another part of the water forms a cluster water spray, so that the water sprayed out by the nozzle body switches back and forth between flower bud water spray and cluster water spray.

2. The water spraying device as described in claim 1, characterized in that, The vertical distance between the outlet end of the first water inlet channel and the central axis surface of the vortex cavity is no more than 2mm, and the central axis surface is perpendicular to the central axis.

3. A water spraying device as described in claim 1 or 2, characterized in that, The water outlet includes a water outlet hole and a guide groove. The water outlet hole is connected to the upper end of the vortex cavity. The guide groove is located on the outward side of the water outlet hole, and the radial dimension of the guide groove is larger than the radial dimension of the water outlet hole.

4. The water spraying device as described in claim 3, characterized in that, The water outlet has a first aperture ratio, a second aperture ratio, and a guide ratio. The first aperture ratio is the ratio between the radial dimension of the water outlet and its height. The second aperture ratio is the ratio between the radial dimension at the water outlet of the guide groove and its height. The guide ratio is the ratio between the radial dimension of the water outlet and the radial dimension at the water outlet of the guide groove. The first aperture ratio ranges from 1:1.2 to 1:2; the second aperture ratio ranges from 1:2 to 1:4; and the guide ratio ranges from 1:1.3 to 1:

2.

5. A water spraying device as described in claim 4, characterized in that, The ratio between the diameter of the first water inlet channel and the diameter of the water outlet constitutes a third aperture ratio, which ranges from 1.2:1 to 1.4:

1.

6. The water spraying device as described in claim 5, characterized in that, When the vortex cavity is spherical, the ratio between the aperture of the first water inlet channel and the inner diameter of the vortex cavity constitutes the sphere diameter ratio, which ranges from 10:1 to 13:

1.

7. A water spraying device as described in claim 6, characterized in that, The vortex cavity is composed of an upper hemisphere and a lower hemisphere, which are symmetrical about the connection point. The upper and lower hemispheres are respectively provided with an upper water inlet channel and a lower water inlet channel, which are connected to each other to form the first water inlet channel. The water outlet is provided at the top of the upper hemisphere. Alternatively, when the upper and lower hemispheres are asymmetrical, the water outlet is provided at the top of the upper hemisphere, and the first water inlet channel is located in the larger of the upper and lower hemispheres.

8. A water spraying device as described in claim 6, characterized in that, The vortex cavity is composed of an asymmetrically arranged left hemisphere and a right hemisphere, the first water inlet channel is located in the left hemisphere or the right hemisphere, and the water outlet is located at the upper end of the left hemisphere or the right hemisphere.

9. A water spraying device as described in claim 8, characterized in that, The upper end of one of the left or right hemispherical cavities is provided with the water outlet to form a protrusion, and the other is provided with a recess that matches the protrusion.

10. A water spraying device as described in claim 1, characterized in that, It also includes a second water inlet channel, one end of which is connected to the second water inlet of the nozzle body, and the other end is connected to the vortex chamber.

11. A water spraying device as described in claim 10, characterized in that, The second water inlet channel is located in the middle of the vortex cavity, and the water outlet direction is towards the central axis of the vortex cavity. It is not tangent to the inner wall of the vortex cavity. When the first water inlet channel is not filled with water and the second water inlet channel is filled with water, the water flows out from the outlet, forming a single cluster of water droplets.

12. A water spraying device as described in claim 10, characterized in that, The second water inlet channel is located away from the center of the vortex cavity, and the water outlet direction is tangent to the inner wall of the vortex cavity. When the first water inlet channel is not filled with water and the second water inlet channel is filled with water, the water flows out from the outlet, forming a single flower bud water splash.

13. A toilet spray washing device, comprising a spray bar, characterized in that, It also includes a water spraying device as described in any one of claims 1-12, wherein the water spraying device is installed at the front end of the spray bar and constitutes the water outlet terminal of the spray bar.

Images