Swinging water outlet structure and toilet

Abstract

The application discloses a swing water outlet structure and a closestool, wherein the swing water outlet structure comprises a shell provided with a shell water inlet and a shell water outlet; a Venturi cavity arranged in the shell and comprising a first flow speed cavity and a second flow speed cavity in communication; a swing water cavity in communication with the Venturi cavity at one end and in communication with the shell water outlet at the other end; a negative pressure cavity in communication with the second flow speed cavity at one end and in communication with the swing water cavity at the other end; the cross-sectional area of the negative pressure cavity is greater than that of the second flow speed cavity; a feedback channel in communication with the shell water outlet at one end and indirectly in communication with the water outlet of the second flow speed cavity through the negative pressure cavity at the other end; the feedback channel has two branches, and the two branches are arranged on the two sides of the shell water outlet at the end in communication with the shell water outlet and on the two sides of the axis of the second flow speed cavity at the end in communication with the second flow speed cavity; and a water guide is arranged in the swing water cavity. The technical scheme can improve the uniformity and stability of the swing water outlet structure.

Description

Technical Field

[0001] This invention relates to the field of water outlet structure technology, and in particular to a swing water outlet structure and a toilet. Background Technology

[0002] In daily life, various oscillating water outlet structures are needed to increase the washing area or achieve a massage effect, such as the oscillating water outlet structure of smart toilets. By oscillating the water, the washing area is increased, and a massage effect is achieved. To achieve oscillating water outlet, a motor is usually used to control the water nozzle, causing it to oscillate and thus changing the direction of the water flow. However, designs using motor-driven oscillating nozzles often have lower reliability because the environment near the water outlet is often humid, and electrical equipment is prone to aging. Therefore, a water outlet structure with a special flow channel cavity can be used to allow the water to oscillate naturally. For example, a feedback channel can be used to connect the water outlet of the water outlet structure to the upstream water path in the water outlet structure, using the water jet from the water outlet structure to control the oscillation direction of the upstream water in the water outlet structure, thereby achieving oscillating water outlet. However, because the water outlet uses a special flow channel cavity to oscillate, maintaining the oscillation is quite demanding. Uneven oscillation can often occur, with more water flowing from the left and right ends of the outlet and less from the middle, or even only a straight water flow, reducing the user experience. Therefore, a more uniform and stable oscillating water outlet structure is needed. Summary of the Invention

[0003] The main objective of this invention is to provide a swing water outlet structure, which aims to improve the uniformity and stability of the swing water outlet structure.

[0004] To achieve the above objectives, the present invention proposes a swing-out water outlet structure, comprising:

[0005] A shell, wherein a shell inlet and a shell outlet are provided on the shell;

[0006] The venturi cavity is disposed within the shell and includes a first flow velocity cavity and a second flow velocity cavity that communicate with each other; the first flow velocity cavity is connected to the shell inlet.

[0007] A water-swinging cavity is disposed inside the shell, with one end of the water-swinging cavity communicating with the Venturi cavity and the other end communicating with the shell outlet.

[0008] A negative pressure chamber, one end of which is connected to the second flow velocity chamber and the other end of which is connected to the swing chamber; the cross-sectional area of ​​the negative pressure chamber is larger than the cross-sectional area of ​​the second flow velocity chamber;

[0009] The feedback channel has one end connected to the shell outlet and the other end indirectly connected to the outlet of the second flow velocity chamber through the negative pressure chamber. There are two feedback channels, with the ends of the two feedback channels connected to the shell outlet located on both sides of the shell outlet. The ends of the two feedback channels connected to the second flow velocity chamber are located on both sides of the axis of the second flow velocity chamber.

[0010] A water guide is provided inside the water swing chamber, and the water guide is provided in a manner corresponding to the outlet of the second flow velocity chamber.

[0011] Optionally, the water guide is used to increase the angle between the velocity direction of the water flow exiting the venturi cavity and the axis of the oscillating water outlet structure.

[0012] Optionally, the water guide is a U-shaped component with its opening facing the Venturi cavity; on both sides of the axis of the second flow velocity cavity, the water guide and the inner wall of the swing cavity respectively enclose a first water channel and a second water channel.

[0013] Optionally, downstream of the first waterway and the second waterway, the water guide and the swing cavity enclose a water-containing cavity, the volume of which is greater than the volume of the first waterway and the volume of which is greater than the volume of the second waterway.

[0014] Optionally, the water guide includes a first arm, a second arm, and a bottom arm; the first arm and the second arm are arranged opposite to each other, the bottom arm connects the first arm and the second arm, and the side wall of the bottom arm facing the Venturi cavity is configured as a guide wall, the guide wall is arc-shaped, and the radius of curvature of the guide wall is smaller than the maximum distance from the water outlet of the Venturi cavity to the guide wall.

[0015] Optionally, the shell outlet has a first sidewall and a second sidewall respectively disposed on both sides of the axis of the swing chamber; the first sidewall and the second sidewall both extend in a direction away from the swing chamber and are inclined in a direction away from the axis of the shell outlet; one of the feedback channels communicates with the first sidewall and the other feedback channel communicates with the second sidewall.

[0016] Optionally, the sidewall where the water-swinging cavity intersects with the first sidewall is configured as a first arc-shaped wall protruding away from the water guide; the sidewall where the water-swinging cavity intersects with the second sidewall is configured as a second arc-shaped wall protruding away from the water guide.

[0017] Optionally, at the connection between the feedback channel and the negative pressure chamber, the angle between the extension direction of the feedback channel and the flow direction of water in the second flow velocity chamber is less than 90°.

[0018] Optionally, the cross-sectional area of ​​the opening at the junction of the negative pressure chamber and the second flow velocity chamber is smaller than the cross-sectional area of ​​the opening at the junction of the negative pressure chamber and the swing water chamber.

[0019] Optionally, the inner wall of the negative pressure chamber is shaped as an arc protruding away from the axis of the swinging water outlet structure.

[0020] Optionally, the shell is further provided with a water outlet cavity, which is connected to the shell water outlet and is located downstream of the water outlet of the shell; the water outlet cavity is provided with two water guide ribs; the two water guide ribs extend along the water flow direction in the water outlet cavity; the two water guide ribs are spaced apart in a direction perpendicular to the water flow direction in the water outlet cavity.

[0021] The present invention also proposes a toilet including the above-mentioned oscillating water outlet structure.

[0022] In this invention, water enters the shell through the inlet, first entering the first velocity chamber of the Venturi cavity, and then the second velocity chamber. The cross-sectional area of ​​the first velocity chamber is larger than that of the second velocity chamber. Therefore, a Venturi effect occurs at the junction of the second and first velocity chambers, meaning the fluid velocity increases and the pressure decreases. Two feedback channels are connected at one end to the shell outlet (i.e., to the outside), and at the other end to the outlet of the second velocity chamber. Due to the Venturi effect, the water velocity is high and the pressure is low at the outlet of the second velocity chamber, creating a negative pressure compared to atmospheric pressure. Thus, the end of the feedback channel connected to the shell outlet is at high pressure, and the end connected to the second velocity chamber is at low pressure. Since fluid tends to flow from high pressure to low pressure, the feedback channel always has the ability to draw fluid from the shell outlet. As soon as water enters the swinging water outlet structure and before it flows out of the shell outlet, the feedback channel draws in gas. Due to constant environmental disturbances, the jet within the swinging chamber undergoes a slight deflection. The jet divides both the negative pressure chamber and the swinging chamber into two smaller chambers, left and right. When the jet deflects towards the left chamber, the cross-sectional area of ​​the air passage between the negative pressure chamber and the swinging chamber in the left chamber is smaller than that in the right chamber. Since the pressure in the swinging chamber is greater than that in the negative pressure chamber, the pressure in the left chamber of the negative pressure chamber is less than that in the right chamber. The air intake of the feedback channel closer to the left chamber is greater than that closer to the right chamber, thus pushing the jet to the right. The greater the deflection, the greater the difference in air intake between the two feedback channels. The maximum deflection amplitude is reached, thus providing the initial conditions for the oscillating water discharge. This ensures that the water ejected from the second velocity chamber is not directly along the axis of the second velocity chamber, but has a certain deflection angle. When the water flow from the second velocity chamber reaches the shell outlet, it will also have a certain deflection angle. Since the feedback channel is connected to the shell outlet, the water flow deflected to one side will cover an opening of the feedback channel on the side wall of the shell outlet. This feedback channel then stops absorbing air and begins absorbing water. The water returns to the outlet of the second velocity chamber through this feedback channel, flushing the water flow at the outlet of the second velocity chamber and changing the deflection direction of the water flow at the outlet of the second velocity chamber. By repeating the above cycle, the deflection direction of the water flow at the shell outlet is changed periodically, thereby achieving a stable oscillating water discharge effect. In summary, the oscillation begins at the outlet of the second velocity chamber. Due to the Venturi effect, the ejected water velocity in the second velocity chamber is high, making it easy for it to flow into the feedback channel. The water flowing into the feedback channel from the ejected water in the second velocity chamber has the opposite velocity to the water drawn in by the feedback channel at the shell outlet. Therefore, their momentum cancels each other out, which weakens the impact of the water drawn in by the feedback channel at the shell outlet on the ejected water in the second velocity chamber, reducing the oscillation of the ejected water in the second velocity chamber, which may lead to the failure of the oscillation water discharge.With the negative pressure chamber installed, its cross-sectional area is larger than that of the second velocity chamber. Furthermore, the feedback channel is indirectly connected to the outlet of the second velocity chamber through the negative pressure chamber. This spacing between the outlet of the feedback channel and the outlet of the second velocity chamber significantly reduces the probability of water from the second velocity chamber flowing into the feedback channel, making the oscillating water discharge less prone to failure and more stable. Additionally, the feedback channel allows for more uniform oscillating water discharge. Because it takes time for the water drawn into the feedback channel to reach the outlet of the second velocity chamber, the water discharged during this time is not affected by the water drawn into the feedback channel, resulting in a smaller oscillation amplitude. This also minimizes the oscillation of the water discharged at the shell outlet during this period. Thus, with the assistance of the feedback channel, the shell outlet achieves large-angle oscillation water discharge, while without the feedback channel, it oscillates at small angles. This ensures that the water discharged from the shell outlet spends a relatively consistent amount of time at each angle within one oscillation cycle, resulting in more uniform water discharge. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present 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 present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of an embodiment of the oscillating water outlet structure of the present invention;

[0025] Figure 2 for Figure 1 Another perspective structural diagram of the embodiment;

[0026] Figure 3 for Figure 2 A schematic diagram of the cross-section along the AA direction;

[0027] Figure 4 for Figure 1 The first simulation diagram of water flow in the embodiment;

[0028] Figure 5 for Figure 1 The second simulation diagram of water flow in the middle embodiment;

[0029] Figure 6 for Figure 1 The third simulation diagram of water flow in the Chinese embodiment;

[0030] Figure 7 for Figure 1 The fourth simulation diagram of water flow in the Chinese embodiment;

[0031] Figure 8 for Figure 1 The fifth simulation diagram of water flow in the Chinese embodiment;

[0032] Figure 9 This is a cross-sectional structural schematic diagram of another embodiment of the oscillating water outlet structure of the present invention;

[0033] Figure 10 for Figure 1 Schematic diagram of the first water flow in the Chinese embodiment;

[0034] Figure 11 for Figure 1 Schematic diagram of the second water flow in the Chinese embodiment;

[0035] Figure 12 for Figure 1 Schematic diagram of the third water flow in the Chinese embodiment.

[0036] Explanation of icon numbers:

[0037]

[0038] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0040] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0041] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0042] This invention proposes a swing-out water outlet structure.

[0043] In an embodiment of the present invention, reference is made to Figures 1 to 3 The oscillating water outlet structure includes:

[0044] The shell 10 is provided with a shell inlet 11 and a shell outlet 12.

[0045] The venturi cavity 20 is disposed inside the shell 10 and includes a first flow velocity cavity 21 and a second flow velocity cavity 22; the first flow velocity cavity 21 is connected to the shell inlet 11.

[0046] The water swing chamber 30 is set inside the shell 10. One end of the water swing chamber 30 is connected to the second flow velocity chamber 22, and the other end is connected to the shell outlet 12.

[0047] The negative pressure chamber 80 is connected at one end to the second flow velocity chamber 22 and at the other end to the swing water chamber 30; the cross-sectional area of ​​the negative pressure chamber 80 is larger than the cross-sectional area of ​​the second flow velocity chamber 22.

[0048] Feedback channel 40, one end of which is connected to the shell outlet 12, and the other end is indirectly connected to the outlet of the second velocity chamber 22 through the negative pressure chamber 80; there are two feedback channels 40, the ends of the two feedback channels 40 connected to the shell outlet 12 are respectively located on both sides of the shell outlet 12; the ends of the two feedback channels 40 connected to the second velocity chamber 22 are respectively located on both sides of the axis of the swing water outlet structure;

[0049] Water guide 50 is installed inside the swing chamber 30 and is configured to correspond to the outlet of the second flow velocity chamber 22.

[0050] Because the water has a large velocity at the outlet of the second velocity chamber 22, the water in the flow has a large momentum. Since the cross-sectional area of ​​the negative pressure chamber 80 is larger than that of the second velocity chamber 22, the water with a large momentum can be prevented from rushing into the feedback channel 40, thus avoiding backflow in the feedback channel 40. This ensures the scouring effect of the water flow drawn by the feedback channel 40 at the shell outlet 12 on the water flow at the outlet of the second velocity chamber 22, and ensures the stability of the swing water discharge.

[0051] The cross-sectional area of ​​the second velocity chamber 22 in the water flow direction should be smaller than that of the first velocity chamber 21 in the water flow direction, so that the water velocity in the second velocity chamber 22 is greater than that in the first velocity chamber 21, thereby generating the Venturi effect and providing low pressure. The feedback channel 40 can be as follows: Figure 3 The elongated hole shown inside the housing 10 can also be a pipe outside the bridge body. The feedback channel 40 only needs to be a channel connecting the outlet of the second flow velocity chamber 22 and the outlet 12 of the housing.

[0052] Figures 4 to 7 A simulation diagram of the water flow in the oscillating water outlet device; Figure 4 In the middle, the water jet from the second velocity cavity 22 deflects to the left, and this jet of water is like... Figure 5 As shown, under the action of the guide element 50, it enters the second waterway 62; under the action of the wall, as... Figure 6 As shown, this jet of water flows along the second arc-shaped wall 16 to the shell outlet 12, and finally... Figure 7 As shown, it shifts to the left and exits from the shell outlet 12; when the water exiting from the shell outlet 12 exits to the left, as... Figure 7 As shown, this will cause the left feedback channel 40 to absorb water. The water absorbed by the left feedback channel 40 will then flush the water ejected from the second flow velocity chamber 22 to the right, causing it to deflect to the right, thus forming oscillating water.

[0053] Figures 10 to 12 A diagram illustrating water flow, such as Figure 10 As shown, when the ejected water from the shell outlet 12 deviates to the left, it is caused by the high-velocity water being guided to the shell outlet 12 by the second arc-shaped wall 16; as Figure 11 As shown, when the ejected water from the shell outlet 12 deviates to the right, it is caused by the high-velocity water being guided to the shell outlet 12 by the first arc-shaped wall 15; as Figure 12 As shown, when neither the first arc-shaped wall 15 nor the second arc-shaped wall 16 guides the high-velocity water to the shell outlet 12 (i.e., the situation that will occur in time T3 when T1 < T2 as described below), the water flow velocities on the first arc-shaped wall 15 and the second arc-shaped wall 16 are similar, which will cause the water to be ejected from the shell outlet 12 with almost no deflection.

[0054] The Venturi cavity 20 can generate the Venturi effect, which makes the water ejected from the second velocity cavity 22 have a very high flow velocity, resulting in a very low pressure. This creates a negative pressure in the negative pressure cavity 80, which is even lower than atmospheric pressure, so air can be drawn in from the feedback channel. Since the water flow at the shell outlet 12 is in an open space, the water pressure is also close to atmospheric pressure, which is also greater than the pressure in the negative pressure cavity 80. Therefore, when water flows through the end of the negative pressure cavity 80 that is connected to the shell outlet 12, the feedback channel 40 will also start to draw in water.

[0055] It should be noted that, such as Figures 4 to 7As shown, it takes a certain amount of time for water to travel from the second velocity chamber 22 through the swing chamber 30 to the shell outlet 12. This time is also the time required for the water ejected from the high velocity chamber to act on the shell outlet 12. Similarly, it also takes a certain amount of time for water to be drawn from the feedback channel 40 to reach the outlet of the second velocity chamber 22 and act on the ejected water flow. The above phenomena can be summarized as the feedback channel having a lag in adjusting the swing direction of the water flow at the outlet of the second velocity chamber 22. This phenomenon can be used in the design to make the swing effect of the water flow at the shell outlet 12 better. The specific design principle is as follows:

[0056] Let T1 be the duration of one cycle of water flow, which is the time it takes for water to enter from one side (left and right sides in this embodiment) of the feedback channel 40, change the direction of water flow, and enter from the other side of the feedback channel 40 to reach the outlet of the second velocity chamber 22; let T2 be the water ejection time, which is the time it takes for water to flow from the second velocity chamber 22, pass through the swing chamber 30, and reach the shell outlet 12; let T1 < T2, then during the time T3 = T2 - T1, the water flow at the shell outlet 12 will not deviate, that is, as Figure 8 As shown, when T1 < T2, during the time interval T3, the high-velocity water flow deviating from the axis of the oscillating water outlet structure emitted from the second velocity chamber 22 does not reach the shell outlet 12. Therefore, the water outlet direction of the shell outlet 12 is aligned with the axis of the oscillating water outlet structure and does not deviate. This makes the rinsing time of the oscillating water in different outlet directions more consistent, resulting in more uniform water flow and improved user experience. To reduce T1, measures such as reducing the length of the feedback channel 40 or reducing the cross-sectional area of ​​the feedback channel 40 can be adopted. To increase T2, measures such as increasing the length of the feedback channel 40, increasing the length of the first water channel 61, increasing the length of the second water channel 62, increasing the length of the first arc-shaped wall 15, increasing the length of the second arc-shaped wall 16, increasing the length of the first support arm 51, increasing the length of the bottom arm 53, or increasing the length of the second support arm 52 can be adopted. In practice, the design can be adjusted according to the actual situation.

[0057] refer to Figures 1 to 3 Optionally, the water guide 50 is used to increase the angle between the velocity direction of the water flow exiting the venturi cavity 20 and the axis of the oscillating water outlet structure. Since the water guide 50 is correspondingly positioned to the outlet of the second velocity cavity 22, it can also be used to obstruct the water flow exiting the second velocity cavity 22, thereby reducing the velocity of the water flow exiting the outlet of the second velocity cavity 22, and consequently reducing the velocity of the water flow exiting the shell outlet 12, resulting in a gentler water flow and improved user experience. When the water guide 50 is used to reduce the water flow velocity, the water guide... Figure 3The cross-section shown can be circular or spindle-shaped, coaxial with the oscillating water outlet structure. The guide vane 50 is used to increase the angle between the velocity direction of the ejected water flow from the Venturi cavity 20 and the axis of the oscillating water outlet structure, i.e., to increase the oscillation amplitude of the ejected water from the second velocity cavity 22. The guide vane 50 can be as follows: Figure 3 The shape shown is U-shaped, but it can also be an isosceles triangle. When the water guide 50 is an isosceles triangle, the angle between the equilateral sides of the water guide 50 can be aligned with the outlet of the second velocity chamber 22, and the perpendicular bisector of the adjacent side of the equilateral side is coaxial with the swinging water outlet structure. In this way, water flows with different swinging directions exiting from the high velocity chamber will contact the two equilateral sides of the water guide 50 respectively. Due to the wall-attracting effect of the water flow, the water flow will flow along the two equilateral sides. Thus, the swing angle of the water flow is equal to half of the angle between the equilateral sides of the water guide 50. As long as this angle is made greater than the swing angle of the water flow when it exits from the second velocity chamber 22, the swing angle of the water flow can be expanded.

[0058] refer to Figures 1 to 3 Optionally, the water guide 50 is a U-shaped component with its opening facing the Venturi cavity 20; on both sides of the axis of the swinging water outlet structure, the water guide 50 and the inner wall of the swinging water cavity 30 respectively enclose to form a first water channel 61 and a second water channel 62. Figures 4 to 8 As shown, when the water guide 50 is U-shaped, the water ejected from the second velocity chamber 22 impacts the water guide 50 and, under the influence of the wall-attracting effect, flows along the surface of the water guide 50, eventually entering the first water channel 61 or the second water channel 62. On the one hand, this arrangement allows for more controllable water flow oscillation angles. By designing the extension directions of the first and second water channels 61 and 62, the direction of water flow exiting the first and second water channels 61 and 62 can be controlled, thereby controlling the oscillation angle of the water flow at the shell outlet 12. On the other hand, this arrangement allows the water to travel a longer distance to reach the shell outlet 12, reducing the water flow velocity and making the water flow smoother.

[0059] refer to Figures 1 to 3 Optionally, the chamfers in both the first waterway 61 and the second waterway 62 are configured as curved chamfers. For example... Figure 3 As shown, both the first waterway 61 and the second waterway 62 can be configured as curved shapes. Configuring the chamfers in the first waterway 61 and the second waterway 62 as arc-shaped chamfers can improve the wall-following effect of the water flow and prevent turbulence from occurring at the bends, thus disrupting the wall-following effect.

[0060] refer to Figures 1 to 3Optionally, downstream of the first waterway 61 and the second waterway 62, the water guide 50 and the swinging water chamber 30 enclose a water-containing chamber 70, the volume of which is greater than that of the first waterway 61 and the second waterway 62. When the swinging water outlet structure begins to discharge water stably, the water-containing chamber 70 is filled with water. Since the volume of the water-containing chamber 70 is greater than that of both the first waterway 61 and the second waterway 62, it can be considered that a portion of the water is neither affected by the high-velocity water in the first waterway 61 nor by the high-velocity water in the second waterway 62 (because the swinging water outlet structure needs to swing to discharge water, the high-velocity water in the first waterway 61 and the second waterway 62 usually arrives at the water-containing chamber 70 in batches; therefore, it is approximately considered that the high-velocity water from the first waterway 61 and the high-velocity water from the second waterway 62 will not simultaneously affect the water-containing chamber 70). This portion of water remains relatively stable, i.e., as... Figures 4 to 8 The water in the middle water chamber 70 is close to the center of the water guide 50; in this way, the water in the water chamber 70 can make the water outlet 12 of the shell more uniform, and at the same time provide a buffer for high flow rate water, so as to avoid the water outlet 12 of the shell being softer. When the swing water outlet structure is designed as T1 < T2, the water chamber 70 also makes the water outlet during T3 time more stable and less prone to accidental deviation.

[0061] refer to Figures 1 to 3 Optionally, the water guide 50 includes a first arm 51, a second arm 52, and a bottom arm 53; the first arm 51 and the second arm 52 are arranged opposite to each other, and the bottom arm 53 connects the first arm 51 and the second arm 52. The side wall of the bottom arm 53 facing the Venturi cavity 20 is configured as a guide wall 54, the guide wall 54 is arc-shaped, and the radius of curvature of the guide wall 54 is smaller than the maximum distance from the outlet of the Venturi cavity 20 to the guide wall 54. Figure 4 As shown, when the water flow at the outlet of the second flow velocity chamber 22 deflects significantly to the left, it directly washes over the first arm 51. Under the influence of the wall, the water flow can then pass through the bottom arm 53 and finally reach the second arm 52, ultimately flowing into the second water channel 62. This allows the guide member 50 to increase the oscillation amplitude of the water outlet from the second flow velocity chamber 22. Conversely, when the water flow at the outlet of the second flow velocity chamber 22 deflects slightly to the left, it directly washes over the bottom arm 53, i.e.... Figure 5 In the scenario shown, since the radius of curvature of the guide wall 54 is less than the maximum distance from the outlet of the Venturi cavity 20 to the guide wall 54, the water flow can still flow to the right under the influence of the wall, reaching the second arm 52 and finally entering the second water channel 62. This allows the guide element 50 to increase the oscillation amplitude of the water exiting the second velocity cavity 22. Similarly, when the water flow deviates to the right, for water flows with small deviations, the guide element 50 can also increase the oscillation amplitude of the water exiting the second velocity cavity 22.

[0062] refer to Figures 1 to 3Optionally, the shell outlet 12 has a first sidewall 13 and a second sidewall 14 respectively disposed on both sides of the axis of the swing water outlet structure; both the first sidewall 13 and the second sidewall 14 extend away from the swing water chamber 30 and are inclined away from the axis of the shell outlet 12; one feedback channel 40 is connected to the first sidewall 13, and the other feedback channel 40 is connected to the second sidewall 14. In this way, when the water ejected from the shell outlet 12 does not deviate, the water flow distance between the two feedback channels 40 and the communication openings of the first sidewall 13 and the second sidewall 14 is relatively far, avoiding accidental water intake by the feedback channels 40, which would cause the swing cycle to become disordered and make the swing effect more stable. When the water flow deviates, the feedback channel 40 located in the direction of water flow deviation can start to absorb water, ensuring the swing water outlet effect.

[0063] refer to Figures 1 to 3 Optionally, the sidewall where the water-swinging cavity 30 intersects with the first sidewall 13 is configured as a first arc-shaped wall 15 protruding away from the water guide 50; the sidewall where the water-swinging cavity 30 intersects with the second sidewall is configured as a second arc-shaped wall 16 protruding away from the water guide 50. The arc-shaped wall helps maintain the wall-to-wall effect of the water flow and improves the control of the water flow, such as... Figures 4 to 8 As shown, high-velocity water (the darker the color of the simulated water flow in the figure, the greater the velocity) moves along the first arc-shaped wall 15 and the second arc-shaped wall 16. Therefore, while improving the wall-attracting effect, the arc-shaped walls can also control the direction of water flow.

[0064] refer to Figures 1 to 3 Optionally, the tangent at the junction of the first arc-shaped wall 15 and the shell outlet 12 intersects the second side wall 14; the tangent at the junction of the second arc-shaped wall 16 and the shell outlet 12 intersects the first side wall 13. Due to the wall-attracting effect, high-velocity water tends to flow along the curved wall. Therefore, the tangent at the junction of the curved wall and the shell outlet 12 determines the ejection direction of the high-velocity water at the shell outlet 12. The tangent at the junction of the first curved wall 15 and the shell outlet 12 intersects with the second side wall 14, causing the high-velocity water flowing along the first curved wall 15 to move in the direction of motion towards the second side wall 14 after exiting the shell outlet 12. This ensures that the feedback channel 40 connected to the second side wall 14 can absorb water, making the oscillating water ejection effect more stable. Similarly, the tangent at the junction of the second curved wall 16 and the shell outlet 12 intersects with the first side wall 13, causing the high-velocity water flowing along the second curved wall 16 to move in the direction of motion towards the first side wall 13 after exiting the shell outlet 12. This ensures that the feedback channel 40 connected to the first side wall 13 can absorb water, making the oscillating water ejection effect more stable.

[0065] refer to Figures 1 to 3Optionally, the housing 10 is plate-shaped, and the water guide 50 is perpendicular to the plane of the swing water outlet structure and fixedly connected to the inner wall of the swing water cavity 30. In actual use, the swing water outlet structure can be installed on shower heads and toilets, and the plate-shaped housing 10 is more conducive to the installation of the swing water outlet structure. The water guide 50 is located in the swing water cavity 30 and is fixedly connected to the inner wall of the swing water cavity 30. This can improve the strength of the housing 10 and prevent the housing 10 from deforming or even breaking when the water pressure inside the housing 10 is high.

[0066] refer to Figures 1 to 3 Optionally, at the connection between the feedback channel 40 and the negative pressure chamber 80, the angle between the extension direction of the feedback channel 40 and the flow direction of the water in the second velocity chamber 22 is less than 90°. The extension direction of the feedback channel 40 is the direction in which the water flows out after the feedback channel 40 draws in water, and the above two angles should be understood as the angle between two vectors. When the above angle is less than 90°, the probability of the water flow from the second velocity chamber 22 directly rushing into the feedback channel 40 will be greatly reduced, further avoiding backflow in the feedback channel 40 and ensuring the stability of the oscillating water discharge.

[0067] refer to Figures 1 to 3 Optionally, the cross-sectional area of ​​the opening where the negative pressure chamber 80 connects to the second velocity chamber 22 is smaller than the cross-sectional area of ​​the opening where the negative pressure chamber 80 connects to the swing chamber 30. Since the water flow exiting the second velocity chamber 22 is deflected within the negative pressure chamber 80 under the scouring effect of the water flow drawn in by the feedback channel, making the cross-sectional area of ​​the opening where the negative pressure chamber 80 connects to the second velocity chamber 22 smaller than the cross-sectional area of ​​the opening where the negative pressure chamber 80 connects to the swing chamber 30 avoids the inner wall of the negative pressure chamber 80 obstructing the deflected water flow, thus improving the stability of the swing water discharge effect.

[0068] refer to Figures 1 to 3 Optionally, the inner wall of the negative pressure chamber 80 is shaped as an arc protruding away from the axis of the oscillating water outlet structure. The arc-shaped inner wall of the negative pressure chamber 80 can enhance the wall-attracting effect of the water flow, so that the water flow from the feedback channel 40 is dispersed as much as possible in the negative pressure chamber 80 due to the wall-attracting effect, thereby increasing the area of ​​action of the water flow from the feedback channel on the water flow exiting the second velocity chamber 22. This prevents the water flow from the feedback channel from directly passing through the water flow exiting the second velocity chamber 22 without transferring sufficient momentum to the water flow exiting the second velocity chamber 22, thereby increasing the oscillation amplitude of the water flow exiting the second velocity chamber 22.

[0069] refer to Figure 9Optionally, the shell 10 also includes a water outlet cavity 90, which is connected to the shell outlet 12 and located downstream of the water path of the shell outlet 12. Two water guide ribs 91 are provided in the water outlet cavity 90. The two water guide ribs 91 extend along the water flow direction in the water outlet cavity 90. The two water guide ribs 91 are spaced apart in a direction perpendicular to the water flow direction in the water outlet cavity 90. This divides the water outlet cavity 90 into three water outlet channels (left, middle, and right), serving as a three-channel water outlet mechanism. Figure 9 In the illustrated embodiment, by designing the lengths of T1 and T2, two water discharge modes—alternating water discharge and oscillating water discharge—can be achieved. When T1 < T2, due to the small offset water flow during time T3, water will flow from all three water discharge channels (left, middle, and right), creating an oscillating water discharge effect. When T1 ≥ T2, there is no small offset water flow during time T3; only a large offset water flow flows out, so only the left and right water discharge channels discharge water, achieving the alternating water discharge effect. More specifically, when T1 < T2, the water flow from the outlet chamber 90 has a more uniform residence time in each emission direction, and the water flow rate between the three channels of the outlet chamber 90 transitions slowly. For example, when the outlet chamber 90 is in… Figure 9 When water exits from the leftmost outlet channel, the water jet should oscillate to the right. This causes the flow rate in the left outlet channel to gradually decrease, while the flow rate in the middle outlet channel gradually increases. Finally, the flow rate in the left outlet channel reaches zero, and the flow rate in the middle outlet channel reaches its maximum. The flow transition process between other channels is similar, thus achieving the oscillating water jet effect. Therefore... Figure 9 The illustrated embodiment can enhance the water discharge effect of the oscillating water discharge structure and broaden its application scenarios. The specific setting principles of T1 and T2 are as described above and will not be repeated here.

[0070] This invention also proposes a toilet including a oscillating water outlet structure. The specific structure of this oscillating water outlet structure is as described in the above embodiments. Since this toilet adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here. The toilet can be configured as a smart toilet, which has a spray gun that provides users with posterior or feminine wash functions. The aforementioned oscillating water outlet structure can serve as the water outlet structure of the spray gun, achieving oscillating water outlet and increasing the washing area; oscillating water outlet can be achieved without a motor, resulting in high stability.

[0071] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A swing-type water outlet structure, characterized in that, include: A shell, wherein a shell inlet and a shell outlet are provided on the shell; A venturi cavity, wherein the venturi cavity is disposed within the housing and includes a first flow velocity cavity and a second flow velocity cavity that communicate with each other; The first flow velocity cavity is connected to the shell inlet; A water-swinging cavity is disposed inside the shell, with one end of the water-swinging cavity communicating with the Venturi cavity and the other end communicating with the shell outlet. A negative pressure chamber, one end of which is connected to the second flow velocity chamber and the other end of which is connected to the swing chamber; the cross-sectional area of ​​the negative pressure chamber is larger than the cross-sectional area of ​​the second flow velocity chamber; The feedback channel has one end connected to the shell outlet and the other end indirectly connected to the outlet of the second flow velocity chamber through the negative pressure chamber. There are two feedback channels, with the ends of the two feedback channels connected to the shell outlet located on both sides of the shell outlet. The ends of the two feedback channels connected to the second flow velocity chamber are located on both sides of the axis of the second flow velocity chamber. A water guide is provided inside the water swing chamber, and the water guide is provided in a manner corresponding to the outlet of the second flow velocity chamber.

2. The oscillating water outlet structure as described in claim 1, characterized in that, The water guide is used to increase the angle between the velocity direction of the water flow exiting the venturi cavity and the axis of the oscillating water outlet structure.

3. The oscillating water outlet structure as described in claim 2, characterized in that, The water guide is a U-shaped component with its opening facing the Venturi cavity; on both sides of the axis of the second flow velocity cavity, the water guide and the inner wall of the swing cavity respectively enclose to form a first water channel and a second water channel.

4. The oscillating water outlet structure as described in claim 3, characterized in that, Downstream of the first and second waterways, the water guide and the swing chamber enclose a water-containing cavity, the volume of which is greater than the volume of the first waterway and the volume of which is greater than the volume of the second waterway.

5. The oscillating water outlet structure as described in claim 3, characterized in that, The water guide includes a first arm, a second arm, and a bottom arm; the first arm and the second arm are arranged opposite to each other, the bottom arm connects the first arm and the second arm, and the side wall of the bottom arm facing the Venturi cavity is configured as a guide wall, the guide wall is arc-shaped, and the radius of curvature of the guide wall is smaller than the maximum distance from the water outlet of the Venturi cavity to the guide wall.

6. The oscillating water outlet structure as described in claim 1, characterized in that, The shell outlet has a first sidewall and a second sidewall respectively disposed on both sides of the axis of the swing chamber; both the first sidewall and the second sidewall extend in a direction away from the swing chamber and are inclined in a direction away from the axis of the shell outlet. One of the feedback channels is connected to the first sidewall, and the other feedback channel is connected to the second sidewall.

7. The oscillating water outlet structure as described in claim 6, characterized in that, The sidewall where the water-swinging cavity intersects with the first sidewall is configured as a first arc-shaped wall protruding away from the water guide; the sidewall where the water-swinging cavity intersects with the second sidewall is configured as a second arc-shaped wall protruding away from the water guide.

8. The oscillating water outlet structure as described in claim 1, characterized in that, At the connection point between the feedback channel and the negative pressure chamber, the angle between the extension direction of the feedback channel and the flow direction of water in the second flow velocity chamber is less than 90°.

9. The oscillating water outlet structure as described in claim 1, characterized in that, The cross-sectional area of ​​the opening at the junction of the negative pressure chamber and the second flow velocity chamber is smaller than the cross-sectional area of ​​the opening at the junction of the negative pressure chamber and the swing water chamber.

10. The oscillating water outlet structure as described in claim 1, characterized in that, The inner wall of the negative pressure chamber is shaped like an arc that bulges away from the axis of the swinging water outlet structure.

11. The oscillating water outlet structure as described in claim 1, characterized in that, The shell is also provided with a water outlet cavity, which is connected to the water outlet of the shell and is located downstream of the water outlet of the shell; the water outlet cavity is provided with two water guide ribs; the two water guide ribs extend along the water flow direction in the water outlet cavity; the two water guide ribs are spaced apart in a direction perpendicular to the water flow direction in the water outlet cavity.

12. A toilet, characterized in that, Including the oscillating water outlet structure as described in any one of claims 1-11.

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