Shower head, toilet and water outlet device

Abstract

The application discloses a nozzle, which is provided with a gas cavity at a water inlet, an inlet channel and an outlet channel respectively communicated with two ends of the gas cavity, a swing cavity and an outlet which are communicated with each other, and the swing cavity is communicated with the outlet channel; wherein, the nozzle is further provided with an air inlet hole communicated with the gas cavity; a U-shaped groove is arranged in the swing cavity, and the opening of the U-shaped groove is arranged towards the outlet channel. The nozzle has the characteristics of low cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bathroom devices, in particular to a shower head, a toilet and a water outlet device. BACKGROUND

[0002] In related art, some bathroom products such as toilets and shower heads have cleaning functions to facilitate user cleaning. Specifically, after a user uses a toilet, the spray gun of the toilet cleans the user's hips.

[0003] The cleaning function of the existing toilet is achieved by driving a pump by a motor. The motor drives the pump to make the water flow out, and the motor makes the water flow swing. However, the motor-driven pump not only has high cost, but also has poor cleaning effect. Further, the motor-driven pump has problems such as frequent switching of components being prone to damage, or the original spray gun needs multiple water outlet hole types for switching water types, resulting in complex internal structure of the spray gun, no air mixing effect, poor use experience, etc. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the prior art. To this end, the present application provides a shower head which has the characteristics of low cost and good cleaning effect.

[0005] The present application also provides a toilet having the above-mentioned shower head.

[0006] The present application also provides a water outlet device having the above-mentioned shower head.

[0007] According to the first aspect of the present application, the shower head is provided with an air cavity at the water inlet, and an entering channel and an exiting channel respectively communicating with both ends of the air cavity. The shower head is also provided with a swing cavity and an outlet which are in communication with each other, and the swing cavity is in communication with the exiting channel.

[0008] The shower head is also provided with an air inlet hole in communication with the air cavity.

[0009] The swing cavity is provided with a U-shaped groove, and the opening of the U-shaped groove is arranged towards the exiting channel.

[0010] The nozzle according to the embodiments of the present application has at least the following beneficial effects: After the water flow enters the inlet channel, the water flow is accelerated in the inlet channel due to the reduced water area, and a Venturi effect is generated. At this time, negative pressure is generated in the air cavity, the air inlet hole connected to the air cavity starts to inhale air, and the air enters the air cavity. Further, the air and the water flow enter the swing cavity from the outlet channel. After entering the swing cavity, the air is extremely unstable due to the large distance between air molecules and the small force between the molecules, and thus the air is easily disturbed. The water flow is not balanced in the air inlet on both sides of the outlet channel, and the water flow reaches an unstable state, so that the water flow swings in a small range in the U-shaped groove of the swing cavity. When the water flow swings to the right end of the swing cavity, the air at the right end of the air cavity is compressed, and the pressure increases. Therefore, the flow of the air in the air cavity to the left end of the swing cavity increases, and the flow of the air at the right end of the swing cavity decreases. In this way, the increased flow of the air at the left end of the swing cavity intensifies the swing of the water flow in the U-shaped groove to the right end of the swing cavity, and the swinging water flow flows to the vertical wall surface at the upper end of the U-shaped groove. Due to the wall attachment effect, most of the water flow flows out of the U-shaped groove along the wall surface of the U-shaped groove to the left end of the swing cavity, a small part of the water flow flows out of the U-shaped groove to the right end of the swing cavity, and the water flow flows along the wall surface of the swing cavity after passing through the U-shaped groove until reaching the outlet. Another part of the water flow forms a vortex in the swing cavity due to the closed loop of the water flow and the wall surface of the swing cavity, and feeds back to the water flow in the U-shaped groove, so that the water flow swings to the left. At this time, most of the water flows out of the U-shaped groove from the left end of the U-shaped groove, and a small part of the water flows out of the U-shaped groove from the right end of the U-shaped groove. After a period of time, the two water flows flow to the outlet, the water flow speed at the left end of the swing cavity is much greater than the water flow speed at the right end of the swing cavity, and thus the water flow swings to the right at the outlet. The water flow in the U-shaped groove slowly swings to the left after the vortex feedback in the swing cavity. At this time, the flow of the air in the air cavity to the right end of the swing cavity increases, and the flow of the air to the left end of the swing cavity decreases, which intensifies the swing of the water flow in the U-shaped groove to the left. At this time, most of the water flows out of the U-shaped groove from the right end of the U-shaped groove, and a small part of the water flows out of the U-shaped groove from the left end of the U-shaped groove. After a period of time, the two water flows flow to the outlet, the water flow speed at the left end of the swing cavity is much greater than the water flow speed at the right end of the swing cavity, and thus the water flow swings to the left at the outlet. In this way, the cycle is repeated. When the air hole is closed, the pressure in the U-shaped groove suddenly increases due to the absence of the air entering the air cavity, and the vortex in the swing cavity cannot make the water flow in the U-shaped groove swing to the upper end of the U-shaped groove, so that the closed loop vortex cannot be formed for feedback. The water flow in the U-shaped groove slowly stops swinging, and the water flow uniformly flows out of the outlet along the inner wall of the U-shaped groove. In this way, the water flow passes through the air cavity, and the air changes the direction of the water flow entering the U-shaped groove, so that the water flow can swing when flowing out of the outlet. Specifically, the water flow sprayed by the nozzle can swing, so that the nozzle has a large cleaning area and good cleaning effect.

[0011] The thicknesses of the inlet channel and the outlet channel are less than the thickness of the air cavity according to some embodiments of the present application.

[0012] According to some embodiments of the present application, the air inlet hole is disposed at the central axis of the side wall of the air cavity.

[0013] According to some embodiments of the present application, the central axis of the outlet is collinear with the central axis of the outlet channel.

[0014] According to some embodiments of the present application, the nozzle further comprises a valve installed at the air inlet hole, the valve being used to open or close the air inlet hole.

[0015] According to some embodiments of the present application, the U-shaped groove comprises two side blocks and a connecting block, the two side blocks being connected to the two ends of the connecting block respectively, and the two side blocks being oppositely disposed, the wall of the swing cavity comprising two arc-shaped walls, the arc-shaped walls being located at one end of the swing cavity close to the air cavity, each of the arc-shaped walls being oppositely disposed with a different side block, and the arc-shaped walls being convex in the direction away from the side blocks.

[0016] According to some embodiments of the present application, along the length direction of the nozzle, the distance between the U-shaped groove and the outlet channel is F, and the width of the inlet channel is W, satisfying: 1.2≤F / W≤1.6.

[0017] According to some embodiments of the present application, the U-shaped groove comprises two side blocks and a connecting block, the two side blocks being connected to the two ends of the connecting block respectively, along the length direction of the nozzle, the height of the connecting block is E, and the length of the side block is D, satisfying: 3≤D / E≤5.

[0018] According to some embodiments of the present application, the width of the outlet is T, and the width of the inlet channel is W, satisfying: 0.6≤T / W≤0.9.

[0019] According to some embodiments of the present application, the width of the inlet channel is W, and the width of the outlet channel is H, satisfying: 5≤H / W≤6.

[0020] According to some embodiments of the present application, the width of the air cavity is N, and the width of the outlet channel is H, satisfying: 0.6≤H / N≤0.9.

[0021] According to some embodiments of the present application, the diameter of the air inlet hole is R, and the width of the inlet channel is W, satisfying: 0.8≤R / W≤1.1.

[0022] According to some embodiments of the second aspect of the present application, the closestool comprises:

[0023] A closestool body for containing excrement;

[0024] The spray head according to any one of the first aspect embodiments is mounted on the toilet body.

[0025] The toilet according to the embodiments of the present application has at least the following beneficial effects: since the spray head has the characteristics of low cost and good cleaning effect, the toilet with the spray head also has low cost.

[0026] The water outlet device according to the third aspect embodiments of the present application comprises:

[0027] The housing;

[0028] The spray head according to any one of the first aspect embodiments is mounted on the toilet body.

[0029] The water outlet device according to the embodiments of the present application has at least the following beneficial effects: since the spray head has the characteristics of low cost and good cleaning effect, the toilet with the spray head also has low cost.

[0030] Additional aspects and advantages of the present application will be given, partially in the following description, partially become obvious from the following description, or be understood by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0031] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0032] Figure 1 A sectional view of the spray head of some embodiments of the present application;

[0033] Figure 2 A Figure 1 An enlarged view of A in FIG. 4;

[0034] Figure 3 Another sectional view of the spray head of some embodiments of the present application;

[0035] Figure 4 A schematic view of the spray head of some embodiments of the present application;

[0036] Figure 5 A simulation diagram of a first time point after water flow enters the spray head in some embodiments of the present application;

[0037] Figure 6 A simulation diagram of a second time point after water flow enters the spray head in some embodiments of the present application;

[0038] Figure 7 A simulation diagram of a third time point after water flow enters the spray head in some embodiments of the present application;

[0039] Figure 8A simulation diagram of a fourth time point when water flow enters the spray head in some embodiments of the present application;

[0040] Figure 9 A simulation diagram of a fifth time point when water flow enters the spray head in some embodiments of the present application.

[0041] Reference signs:

[0042] Spray head 10, air cavity 100, air inlet hole 200, entry channel 300, exit channel 400, swing cavity 500, arc-shaped wall 510, outlet 600, U-shaped groove 700, side blocking part 710, connecting part 720. DETAILED DESCRIPTION

[0043] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0044] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0045] In the description of the present application, if the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. is understood as not including the number, above, below, etc. is understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the order of indicated technical features.

[0046] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0047] In the description of the application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] Please refer to Figure 1 and Figure 4 In some embodiments, the spray head 10 is provided with an air cavity 100 and an entering channel 300 and an exiting channel 400 communicating with the air cavity 100 at the water inlet, and the spray head 10 is further provided with a swing cavity 500 and an outlet 600 communicating with each other, and the swing cavity 500 communicates with the exiting channel 400; wherein the spray head 10 is further provided with an air inlet hole 200 communicating with the air cavity 100; the swing cavity 500 is provided with a U-shaped groove 700, and the opening of the U-shaped groove 700 is arranged towards the exiting channel 400. Specifically, the cross section of the opening can be trapezoidal, so that the water flow has a certain swing space when flowing out of the outlet 600. An inlet cavity can be arranged at one end of the entering channel 300, and the inlet cavity and the entering channel 300 communicate, and the inlet cavity can be conveniently connected with a spray gun or the like to allow the water flow to enter from the entering channel 300. Wherein the outer peripheral wall of the inlet cavity can be provided with threads, so that the spray head 10 and the spray gun or the like are threadedly connected.

[0049] Please refer to Figures 5 to 9 wherein, Figures 5 to 9 is a simulation diagram of the water flow in some embodiments of the application for a certain duration after the water flow enters the spray head 10 from the entering channel 300. Specifically, the first time point to the fifth time point is continuous time, that is Figures 5 to 9 represents the trajectory of the water flow in the spray head 10 from the first time point to the fifth time point. It is Figures 5 to 9In succession, it can be seen that the water flow enters the nozzle 10, and when it goes out of the outlet 600, the swinging form of the water flow. Specifically, after the water flow enters the inlet channel 300, it accelerates in the inlet channel 300 due to the decrease of the water area, and then the Venturi effect is generated. At this time, the negative pressure is generated in the air cavity 100, and the air inlet hole 200 connected with the air cavity 100 starts to inhale air, and the air enters the air cavity 100, and further, the air and the water flow enter the swinging cavity 500 from the outlet channel 400. After entering the swinging cavity 500, due to the extremely unstable nature of the air, i.e. the air molecules are far apart, and the force between the molecules is small, so it is extremely unstable and easy to be disturbed, and the water flow in the outlet channel 400 on both sides of the air inlet is not balanced, so that the water flow reaches the unstable state, causing the water flow to swing in a small range in the U-shaped groove 700 of the swinging cavity 500. When the water flow swings to the right end of the swinging cavity 500, the air at the right end of the air cavity 100 is compressed, and the pressure increases, so the flow of the gas in the air cavity 100 to the left end of the swinging cavity 500 becomes larger, and the flow at the right end of the swinging cavity 500 becomes smaller. In this way, the increase of the flow of the gas at the left end of the swinging cavity 500 will intensify the swinging of the water flow in the U-shaped groove 700 to the right end of the swinging cavity 500, and the swinging water flow will flow to the vertical wall surface of the U-shaped groove 700. Due to the wall attachment effect, most of the water flow will flow out of the U-shaped groove 700 along the wall surface of the swinging cavity 500 to the left end of the swinging cavity 500, and a small part will flow out of the U-shaped groove 700 to the right end of the swinging cavity 500. This part of the water flow flows along the wall surface of the swinging cavity 500 after passing through the U-shaped groove 700, until it reaches the outlet 600; another part of the water flow is fed back to the water flow in the U-shaped groove 700 in the form of eddy current in the swinging cavity 500, causing the water flow to swing to the left. At this time, most of the water flows out of the left end of the U-shaped groove 700, and a very small part flows out of the right end of the U-shaped groove 700, and after a period of time, the two water flows flow to the outlet 600, and the water flow speed at the left end of the swinging cavity 500 is much larger than that at the right end of the swinging cavity 500, so the water flow swings to the right at the outlet 600, and the water flow in the U-shaped groove 700 slowly swings to the left after the eddy current feedback in the swinging cavity 500. At this time, the flow of the gas in the air cavity 100 to the right end of the swinging cavity 500 becomes larger, and the flow to the left end becomes smaller, intensifying the swinging of the water flow in the U-shaped groove 700 to the left. At this time, most of the water flows out of the right end of the U-shaped groove 700, and a very small part flows out of the left end of the U-shaped groove 700, and after a period of time, the two water flows flow to the outlet 600, and the water flow speed at the left end of the swinging cavity 500 is much larger than that at the right end of the swinging cavity 500, so the water flow swings to the left at the outlet 600. In this way, the water flow changes the direction of the water flow into the U-shaped groove 700 after passing through the air cavity 100, so that the water flow can swing when it flows out of the outlet 600. After the air inlet hole 200 is closed, the water flow does not swing when it flows out of the outlet 600.Specifically, the cost of the spray head 10 is low, and the water flow sprayed by the spray head 10 can swing, so that the cleaning area is large, the cleaning effect is good, and the swing and non-swing effects are combined, and the practicability is high.

[0050] Specifically, when the spray head 10 is applied to a toilet, the buttocks of a user are washed, and the water flow can be sprayed to swing, so that the user has a comfortable experience and a good cleaning effect. Further, due to the air inlet hole 200, when the water flow flows out of the outlet 600 of the spray head 10, the water flow and the gas are mixed, the water flow contains a large amount of air in the spray head 10, and the water flow forms granular water when sprayed, so that the cleaning area is increased, and thus the water flow mixed with the gas can bring a comfortable experience to the user.

[0051] It should be noted that the right end of the swing cavity 500 is the right end of the spray head 10, and the left end of the swing cavity 500 is the left end of the spray head 10. Figure 1 The right end of the swing cavity 500 can be the right end of the spray head 10, and the left end of the swing cavity 500 can be the left end of the spray head 10. Here, left and right are not specifically limited, but are only for the convenience of understanding the present application.

[0052] Since the water flow sprayed by the spray head 10 can swing, compared with the water flow swinging by the motor, the cost of the spray head 10 of the present application is low. The spray head 10 of the present application can be installed not only at the spray gun of the toilet, but also at the water outlet of the shower or the water outlet of the faucet, so that the water flow achieves the effect of swinging.

[0053] In some embodiments, the spray head 10 further comprises a valve installed at the air inlet hole 200, which is used to open or close the air inlet hole 200. Specifically, when the water flow does not need to swing, and the U-shaped groove 700 is not arranged in the swing cavity 500, the air cavity 100 is closed after the air inlet hole 200 is closed, and the water flow does not swing in the swing cavity 500, so that the water flow is normally straight out of the outlet 600. That is, after the air stops entering, the swing cavity 500 is full of water, and there is no external force to push the water flow to swing. When the water flow does not need to swing, and the U-shaped groove 700 is arranged in the swing cavity 500, when the air hole is closed, the water flow in the U-shaped groove 700 cannot be swung to the upper end of the U-shaped groove 700 due to the sudden increase of the entering pressure of the gas in the U-shaped groove 700, and the vortex in the swing cavity 500 cannot form a closed loop vortex for feedback, so the water flow in the U-shaped groove 700 slowly stops swinging, and the water flow is evenly out of the U-shaped groove 700 along the inner wall of the U-shaped groove 700 to the outlet 600 and flows out from the middle at the outlet 600. That is, after the air stops entering, the swing cavity 500 is full of water, and there is no external force to push the water flow to swing. When the water flow needs to swing, the air inlet hole 200 only needs to be opened. More specifically, by controlling the opening and closing of the air inlet hole 200, the water flow swinging and direct spraying effects are realized respectively, which not only simplifies the structure and reduces the volume of the spray head 10, but also is easy to operate, that is, the swing of the water flow of the spray head 10 is controllable.

[0054] Please refer to Figure 1 In some embodiments, the air inlet hole 200 is arranged at the central axis of the side wall of the air cavity 100. Specifically, after the gas enters from the air inlet hole 200, the uniformity of the water flow swinging out of the spray head 10 is better because the air inlet hole 200 is arranged at the central axis of the side wall of the air cavity 100.

[0055] Please refer to Figure 1 In some embodiments, the central axis of the outlet 600 is collinear with the central axis of the outgoing channel 400. Specifically, after the water flow goes out of the outgoing channel 400, it passes through the U-shaped groove 700 and finally flows out of the outlet 600. Therefore, after the outlet 600 is arranged opposite to the outgoing channel 400, the uniformity of the water flow swinging is better, and the water flow and the gas are mixed, which can bring better comfort to the user.

[0056] Please refer to Figure 3In some embodiments, the air cavity 100 is square in shape. Specifically, the air cavity 100 can be rectangular in shape or square in shape. In the rectangular shape, the air cavity 100, after the air enters from the air inlet hole 200, the air can follow the water flow to the outlet channel 400 on both sides of the rectangular air cavity 100, and when the air inlet hole 200 is arranged at the central axis of the rectangle, the air can flow to the place with low pressure, and then when the pressure becomes high, the air will go to the other side, so that the air will flow alternately in the left and right directions, thereby changing the direction of the water flow. In addition, when the air cavity 100 is rectangular in shape, the air inlet hole 200 can be arranged at one of the bottom surfaces of the rectangle, and the inlet channel 300 and the outlet channel 400 are respectively communicated with the wide surfaces of the rectangle.

[0057] Further, since the water flow passes through the air cavity 100, a Venturi effect is generated. In order to prevent the air from being blocked by the water flow after entering the air cavity 100 and unable to change the direction of the water flow, please refer to Figure 3 In some embodiments, the thicknesses of the inlet channel 300 and the outlet channel 400 are less than the thickness of the air cavity 100. Specifically, the thickness of the inlet channel 300 is X, the thickness of the outlet channel 400 is Y, and the thickness of the air cavity 100 is Z. The air inlet hole 200 and the inlet channel 300 have a certain interval, so that the air is not blocked by the water flow, and even the water flow flows out of the air inlet hole 200.

[0058] Please refer to Figure 1 and Figure 2 In some embodiments, the U-shaped groove 700 includes two side blocking portions 710 and a connecting portion 720, the two side blocking portions 710 are respectively connected to the two ends of the connecting portion 720, and the two side blocking portions 710 are oppositely arranged to form the U-shaped groove 700 together with the connecting portion 720. The wall surface of the swing cavity 500 includes two arc-shaped walls 510, which are located at one end of the swing cavity 500 close to the air cavity 100. Each arc-shaped wall 510 is oppositely arranged with a different side blocking portion 710, and the arc-shaped wall 510 protrudes in a direction away from the side blocking portion 710. Specifically, after the water flow reaches the U-shaped groove 700 from the outlet channel 400, the water flow flows out along the inner wall of the U-shaped groove 700. Since the water flow is fast, after the water flow flows out, it will impact on the cavity wall of the swing cavity 500, that is, the side wall of the swing cavity 500 close to the two ends of the U-shaped groove 700. Specifically, the arc-shaped wall 510 can form a vortex at this position, and the vortex can change the direction of the water flow, so that the water flow can swing left and right.

[0059] Please refer to Figure 2In some embodiments, the distance between the U-shaped groove 700 and the outgoing channel 400 along the length direction of the nozzle 10 is F, and the width of the incoming channel 300 is W, which satisfy 1.2≤F / W≤1.6. Specifically, if the distance between the U-shaped groove 700 and the outgoing channel 400 is large, the gas and water flow will not generate too much vortex after entering the U-shaped groove 700. If the radius of the vortex is not large enough, the water flow may not change direction, and thus the swinging cannot be achieved. Therefore, the distance between the U-shaped groove 700 and the outgoing channel 400 needs to be 1.2 times or 1.6 times the width of the incoming channel 300.

[0060] Please refer to Figure 2 In some embodiments, the U-shaped groove 700 includes two side barriers 710 and a connecting portion 720, and the two side barriers 710 are connected to the two ends of the connecting portion 720, respectively. The height of the connecting portion 720 is E, and the length of the side barrier 710 is D along the length direction of the nozzle 10, which satisfy 3≤D / E≤5. Specifically, the nozzle 10 has no air inlet hole 200, and the water flow is straight without swinging. Therefore, when there is no air inlet hole 200, the water flow will directly enter the U-shaped groove 700. However, if the height of the U-shaped groove 700 is too low, the water flow may not be stable after exiting the outlet 600, and the swinging may occur. Therefore, in order to make the water flow stable and straight, the height of the U-shaped groove 700, i.e., the length of the side barrier 710, needs to be greater than the height of the connecting portion 720.

[0061] Please refer to Figure 2 In some embodiments, the width of the outlet 600 is T, which refers to the width of the end of the outlet 600 close to the U-shaped groove 700, and the width of the incoming channel 300 is W, which satisfy 0.6≤T / W≤0.9. Specifically, the cross section of the outlet 600 can be trapezoidal, and the width of the end of the outlet 600 away from the U-shaped groove 700 is greater than the width of the end of the outlet 600 close to the U-shaped groove 700. If the width of the end of the outlet 600 close to the U-shaped groove 700 is too small, the water flow may not exit, and thus the air from the air inlet hole 200. In this way, the air cavity 100 cannot suck air from the outside through the air inlet hole 200, so that the gas can change the direction of the water flow. If the width of the end of the outlet 600 close to the U-shaped groove 700 is too large, the swinging effect of the water flow may not be good.

[0062] Please refer to Figure 2In some embodiments, the width of the entering channel 300 is W, and the width of the exiting channel 400 is H, and H satisfies 5≤H / W≤6. Specifically, after the water flow enters the entering channel 300, the water flow passes through the air cavity 100, and thus the air is sucked into the air cavity 100 from the air inlet hole 200, and then the air and the water flow enter the swinging cavity 500 from the exiting channel 400. The water flow swings at the junction of the swinging cavity 500 and the exiting channel 400 under the influence of the air, and thus the width of the exiting channel 400 needs to be greater than the width of the entering channel 300 in order to provide a swinging space for the water flow.

[0063] Please refer to Figure 2 In some embodiments, the width of the air cavity 100 is N, and the width of the exiting channel 400 is H, and H satisfies 0.6≤H / N≤0.9. Specifically, in order to facilitate the air to enter the air cavity 100 from the air inlet hole 200, and to enter the exiting channel 400 from the air cavity 100, the width of the air cavity 100 needs to be greater than the width of the exiting channel 400.

[0064] Please refer to Figure 2 In some embodiments, the diameter of the air inlet hole 200 is R, and the width of the entering channel 300 is W, and R / W satisfies 0.8≤R / W≤1.1. Specifically, if the diameter of the air inlet hole 200 is too small, the air inlet is too slow, and if the diameter of the air inlet hole 200 is too large, the pressure relief is too fast. Therefore, the diameter of the air inlet hole 200 and the width of the entering channel 300 should not differ too much.

[0065] In some embodiments, the closestool includes a closestool body for containing excrement, and the spray head 10 of any one of the above embodiments. The spray head 10 is installed on the closestool body. Specifically, the closestool with the spray head 10 has a low cost and a good cleaning effect.

[0066] In some embodiments, the water outlet device includes a housing and the spray head 10 of any one of the above embodiments. The spray head 10 is installed on the housing, and the outlet 600 is exposed to the housing. The water outlet device can be a shower head or a faucet. Specifically, the water outlet device with the spray head 10 has a low cost and a good cleaning effect. The water outlet device can be a shower head, a faucet, or the like.

[0067] The above embodiments of the present application are described in detail in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by a person skilled in the art without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A spray head characterised in that, The nozzle is provided with an air cavity at the water inlet position, and an inlet channel and an outlet channel respectively communicated with both ends of the air cavity, and the nozzle is further provided with a swing cavity and an outlet communicated with each other, and the swing cavity is communicated with the outlet channel; The nozzle is further provided with an air inlet hole communicated with the air cavity; The swing cavity is provided with a U-shaped groove, and the opening of the U-shaped groove is arranged towards the outlet channel; The nozzle further comprises a valve installed at the air inlet hole, and the valve is used to open or close the air inlet hole; Along the length direction of the nozzle, the distance between the U-shaped groove and the outlet channel is F, and the width of the inlet channel is W, and the following formula is satisfied: 1.2≤F / W≤1.6; The U-shaped groove comprises two side blocking portions and a connecting portion, and the two side blocking portions are respectively connected to both ends of the connecting portion, and along the length direction of the nozzle, the height of the connecting portion is E, and the length of the side blocking portion is D, and the following formula is satisfied: 3≤D / E≤5; The width of the inlet channel is W, and the width of the outlet channel is H, and the following formula is satisfied: 5≤H / W≤6.

2. The showerhead of claim 1, wherein The thickness of the inlet channel and the outlet channel is less than the thickness of the air cavity.

3. The showerhead of claim 1, wherein The air inlet hole is arranged at the position of the central axis of the side wall of the air cavity.

4. The showerhead of claim 1, wherein The central axis of the outlet is collinear with the central axis of the outlet channel.

5. The showerhead of claim 1, wherein The U-shaped groove comprises two side blocking portions and a connecting portion, and the two side blocking portions are respectively connected to both ends of the connecting portion, and the two side blocking portions are oppositely arranged, the wall surface of the swing cavity comprises two arc-shaped walls, the arc-shaped walls are located at one end of the swing cavity close to the air cavity, each arc-shaped wall is oppositely arranged with a different side blocking portion, and the arc-shaped wall protrudes in the direction away from the side blocking portion.

6. The showerhead of claim 1, wherein The width of the outlet is T, and the width of the inlet channel is W, and the following formula is satisfied: 0.6≤T / W≤0.

9.

7. The showerhead of claim 1, wherein The width of the air cavity is N, and the width of the outlet channel is H, and the following formula is satisfied: 0.6≤H / N≤0.

9.

8. The showerhead of claim 1, wherein The diameter of the air inlet hole is R, and the width of the inlet channel is W, and the following formula is satisfied: 0.8≤R / W≤1.

1.

9. A toilet characterized by Comprise: A toilet body for containing excrement; The nozzle according to any one of claims 1-8 is installed on the toilet body.

10. A water outlet device, characterized by Comprise: A shell; The nozzle according to any one of claims 1-8 is installed on the shell, and the outlet is exposed to the shell.

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