Flushing jet and toilet

Abstract

The application belongs to the technical field of bathroom equipment, and discloses a flushing nozzle and a closestool. The flushing nozzle comprises a nozzle body, a foaming piece and a flow control piece. The nozzle body is internally provided with a first liquid inlet channel, a second liquid inlet channel and a liquid outlet channel which are in communication with each other. The first liquid inlet channel is arranged at an angle with the second liquid inlet channel. The nozzle body is further provided with a first liquid inlet opening communicating with the first liquid inlet channel, a second liquid inlet opening communicating with the second liquid inlet channel, a liquid outlet opening communicating with the liquid outlet channel and an air suction opening communicating with the liquid outlet channel. The foaming piece is arranged in the liquid outlet channel. The flow control piece is movably arranged in the second liquid inlet channel. The flow control piece has a first state and a second state. The flow area of the first liquid inlet channel when the flow control piece is in the first state is larger than the flow area of the first liquid inlet channel when the flow control piece is in the second state. The closestool comprising the flushing nozzle can realize large-flow flushing and small-flow foaming functions, and has low cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bathroom equipment, in particular to a flushing nozzle and a toilet. BACKGROUND

[0002] With the improvement of people's living standards, there are many toilets with foam shield function on the market. The foaming device in the toilet can generate a foam layer and cover the water seal surface of the toilet, thereby achieving good splash-proof, odor-proof, wall-moistening, sterilization and other functions.

[0003] The existing toilet with foam shield function usually has a foam outlet at the front end of the cover, and the foam directly falls onto the water seal surface of the ceramic body to form a foam layer. This straight falling foam can only cover a small part of the water seal surface, and the foam cannot cover other parts of the ceramic body, so the wall-moistening, sterilization and cleaning effects are limited.

[0004] Therefore, some methods have appeared to spray foam through a rotating foam nozzle to cover the ceramic surface of the ceramic body. However, this method requires additional components such as air pumps and rotating motors, which increases the complexity of the system, the cost, and the failure rate. Another method is to spray foam from the flushing nozzle of the toilet used to flush the ceramic surface. This method covers the entire ceramic surface with the water ring, and has lower cost and simpler structure. However, it has limitations. Because this method uses the Venturi principle to generate foam, it requires a high flow rate, but the flow rate cannot be too high (a low flow rate will result in poor foaming effect, and a high flow rate will easily cause siphon and flush away the foam). Therefore, the water passage cross-sectional area of the flushing nozzle is relatively small. This method requires a switching valve to switch between the upper flushing and the bottom flushing, which increases the overall cost of the scheme. SUMMARY

[0005] The present application aims to provide a flushing nozzle and a toilet to solve the problem of not being able to accommodate both high-flow flushing and low-flow foaming or the high cost of accommodating both.

[0006] To achieve this purpose, the present application adopts the following technical solutions:

[0007] In a first aspect, embodiments of the present application provide a flushing nozzle, comprising a nozzle body, a foaming piece and a flow control piece, the nozzle body is provided with a first liquid inlet channel, a second liquid inlet channel and a liquid outlet channel which are in communication with each other, the first liquid inlet channel is arranged at an angle with the second liquid inlet channel, the nozzle body is further provided with a first liquid inlet opening communicating with the first liquid inlet channel, a second liquid inlet opening communicating with the second liquid inlet channel, a liquid outlet opening communicating with the liquid outlet channel, and an air inlet opening communicating with the liquid outlet channel, the air inlet opening is arranged on the top wall of the liquid outlet channel; the foaming piece is arranged in the liquid outlet channel; the flow control piece is movably arranged in the second liquid inlet channel, the flow control piece has a first state and a second state, when only the first liquid inlet channel is supplied with liquid, the flow control piece can move away from the first liquid inlet channel under the action of the liquid, the flow control piece is switched from the second state to the first state, when the first liquid inlet channel and the second liquid inlet channel are both supplied with liquid, the flow control piece moves towards the first liquid inlet channel, the flow control piece is switched from the first state to the second state, and the flow area of the first liquid inlet channel when the flow control piece is in the first state is larger than the flow area of the first liquid inlet channel when the flow control piece is in the second state.

[0008] In one embodiment, the second liquid inlet channel is located above the first liquid inlet channel and the liquid outlet channel.

[0009] In one embodiment, one side of the flow control piece facing the first liquid inlet channel is provided with a flow regulating surface, the flow regulating surface is inclined towards the liquid outlet opening in a direction gradually away from the second liquid inlet opening, and the liquid in the first liquid inlet channel can decompose a force towards the second liquid inlet opening when acting on the flow regulating surface.

[0010] In one embodiment, a water passing hole is provided through the flow control piece, when in the second state, the first liquid inlet channel communicates with the liquid outlet channel through the water passing hole.

[0011] In one embodiment, a liquid outlet hole is further provided on the flow control piece, when the flow control piece is in the second state, the liquid outlet hole communicates the second liquid inlet channel and the liquid outlet channel, or the liquid outlet hole communicates the second liquid inlet channel and the first liquid inlet channel.

[0012] In one embodiment, the flow control member comprises a first sleeve and a second sleeve, the first sleeve is located in the second sleeve, a pressure cavity is arranged in the first sleeve, the pressure cavity is communicated with the liquid outlet hole, the flushing nozzle further comprises a liquid inlet cover, the liquid inlet cover comprises a cover main body and a guide portion, the cover main body is fixed to the second liquid inlet, the guide portion is connected to the cover main body and is inserted into the pressure cavity and is movably connected with the flow control member, a liquid injection channel communicated with the pressure cavity is arranged in the guide portion, and a liquid injection hole communicated with the liquid injection channel and the outside is arranged on the cover main body.

[0013] In one embodiment, a plurality of pressure relief gaps are arranged on the guide portion and / or the first sleeve in a circumferential direction, and a discharge hole is further arranged on the side wall of the second sleeve.

[0014] In one embodiment, the effective flow area of the liquid outlet channel is greater than the effective flow area of the first liquid inlet channel.

[0015] In one embodiment, the foaming member comprises a foaming pipeline and a water passing ring arranged coaxially, the water passing ring is sleeved on the foaming pipeline and is fixedly connected with the foaming pipeline, a water passing channel is formed between the water passing ring and the foaming pipeline, and a foaming channel is formed in the foaming pipeline.

[0016] In the second aspect, the toilet according to an embodiment of the present application is provided.

[0017] The present application has the following beneficial effects:

[0018] When the flushing nozzle passes the first liquid inlet to pass water into the first liquid inlet channel of the nozzle body, a large amount of water flow enters the first liquid inlet channel, the flow control member moves towards the direction close to the second liquid inlet, the flow area of the first liquid inlet channel is relatively large, the water flow flows to the liquid outlet through the liquid outlet channel, and due to the large water flow, the liquid outlet channel is rapidly filled, the water flow flows out of the liquid outlet after smoothly flowing through the foaming member, and is used for flushing the closestool; when the flushing nozzle passes the second liquid inlet to pass the foaming agent into the second liquid inlet channel of the nozzle body, the flow control member is switched from the first state to the second state, the flow area of the first liquid inlet channel is reduced, and then water is passed into the first liquid inlet channel of the nozzle body through the first liquid inlet, due to the reduced flow area of the first liquid inlet channel, the water flow is accelerated when passing through the flow control member, after the accelerated water flow is combined with the foaming agent, a water flow with the foaming agent is formed, due to the Venturi effect, negative pressure is formed in the liquid outlet channel, air enters the liquid outlet channel from the air inlet to participate in the foaming process, foam is formed, and the water flow can form foam on the water seal surface of the closestool, and the cleaning effect is achieved. The small flow rate can avoid siphon and flush away the foam. Moreover, the flushing nozzle passes the liquid inlet to pass liquid into the nozzle body, the flow area of the first liquid inlet channel can be changed, the flushing nozzle is switched between the flushing working state and the foaming working state, and a switching valve is not needed. The manufacturing cost and the later maintenance cost of the whole flushing nozzle are low. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a perspective structural schematic view of the flushing nozzle in the embodiment of the application;

[0020] Figure 2 is a perspective view of the flushing nozzle when the flow control member is in the first state;

[0021] Figure 3 is a perspective view of the flushing nozzle when the flow control member is in the second state;

[0022] Figure 4 is a sectional view of the flushing nozzle in the embodiment of the application;

[0023] Figure 5 is a structural schematic view of the nozzle body of the flushing nozzle in the embodiment of the application;

[0024] Figure 6 is a perspective structural schematic view of one angle of the flow control member of the flushing nozzle in the embodiment of the application;

[0025] Figure 7 is a perspective structural schematic view of another angle of the flow control member of the flushing nozzle in the embodiment of the application;

[0026] Figure 8is a sectional view of the flow control member of the flushing nozzle in the embodiment of the present application;

[0027] Figure 9 is a perspective view of the liquid inlet cover in the embodiment of the present application;

[0028] Figure 10 is a sectional view of the liquid inlet cover in the embodiment of the present application;

[0029] Figure 11 is a perspective view of the foaming member of the flushing nozzle in the embodiment of the present application;

[0030] Figure 12 is a front view of the foaming member of the flushing nozzle in the embodiment of the present application;

[0031] Figure 13 is a fluid flow path diagram when the flushing nozzle is in the flushing working state in the embodiment of the present application;

[0032] Figure 14 is a fluid flow path diagram when the flushing nozzle is in the foaming working state in the embodiment of the present application;

[0033] Figure 15 is a fluid flow path diagram when the flow control member is reset in the embodiment of the present application;

[0034] Figure 16 is a partial structural diagram of the flushing assembly in the embodiment of the present application;

[0035] Figure 17 is a perspective view of the toilet in the embodiment of the present application;

[0036] Figure 18 is a sectional view of the toilet in the embodiment of the present application.

[0037] In the drawings:

[0038] 10, flushing nozzle; 11, nozzle body; 111, first liquid inlet channel; 112, second liquid inlet channel; 113, liquid outlet channel; 114, first liquid inlet; 115, second liquid inlet; 116, liquid outlet; 117, shielding part; 118, air suction port; 119, limiting protrusion; 12, foaming member; 121, water passing ring; 122, foaming pipeline; 123, tooth part; 124, foaming ring; 13, flow control member; 131, first sleeve; 1311, pressure cavity; 1312, liquid outlet hole; 132, second sleeve; 1321, discharge hole; 1322, limiting recess; 133, flow regulating surface; 134, water passing sleeve; 1341, water passing hole; 135, reinforcing rib; 14, liquid inlet cover; 141, cover body; 1411, liquid injection port; 142, guiding part; 1421, liquid injection channel; 1422, pressure relief gap; 143, buckle; 15, liquid outlet cover;

[0039] 20. first liquid suction pump;

[0040] 30. second liquid suction pump;

[0041] 40. first water tank;

[0042] 50. second water tank;

[0043] 60. barrel. DETAILED DESCRIPTION

[0044] The application will be further described below in conjunction with the drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not to be used to limit the application. In addition, it is to be understood that, for the purpose of description, only the parts related to the application are shown in the drawings.

[0045] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0046] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical and oblique above of the first feature to the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical and oblique below of the first feature to the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0047] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.

[0048] Reference Figures 1-16As shown, an embodiment of the present invention proposes a flushing nozzle 10, which can be applied to toilets or other water outlet devices that simultaneously require liquid and foam output. The flushing nozzle 10 includes a nozzle body 11, a foaming component 12, and a flow control component 13. The nozzle body 11 has a first liquid inlet channel 111, a second liquid inlet channel 112, and a liquid outlet channel 113 that are interconnected. The first liquid inlet channel 111 and the second liquid inlet channel 112 are arranged at an angle. The nozzle body 11 also has a first liquid inlet 114 connecting to the first liquid inlet channel 111, a second liquid inlet 115 connecting to the second liquid inlet channel 112, a liquid outlet 116 connecting to the liquid outlet channel 113, and an air intake 118 connecting to the liquid outlet channel 113. The air intake 118 is located on the side wall of the liquid outlet channel 113, and to reduce the possibility of liquid escaping from the air intake 118, the air intake 118 is located on the top wall of the liquid outlet channel 113. The foaming component 12 is fixedly disposed within the liquid outlet channel 113, while the flow control component 13 is movably disposed within the second liquid inlet channel 112. The flow control component 13 has a first state and a second state. The cross-sectional area of ​​the first liquid inlet channel 111 when the flow control component 13 is in the first state is larger than the cross-sectional area of ​​the flow control component 13 when it is in the second state. When liquid is only introduced into the first liquid inlet channel 111, the flow control component 13 can move away from the first liquid inlet channel 111 under the push of the liquid, and the flow control component 13 retracts into the second liquid inlet channel 112, switching from the second state to the first state. When liquid is introduced into both the first liquid inlet channel 111 and the second liquid inlet channel 112, the flow control component 13 is at least partially inserted into the first liquid inlet channel 111, switching from the first state to the second state.

[0049] like Figure 13 As shown, when water is supplied to the first inlet channel 111 of the nozzle body 11 through the first inlet port 114, a large amount of water enters the first inlet channel 111. The flow control element 13 moves towards the second inlet port 115. The flow cross-sectional area of ​​the first inlet channel 111 is relatively large. The water flows through the outlet channel 113 to the outlet 116. Due to the large water flow, the outlet channel 113 is quickly filled. At this time, the air intake 118 is ineffective, and the water flows smoothly through the foaming element 12 and then out of the outlet 116. Because of the large water volume, the water flowing out of the outlet 116 can be used to flush the toilet. Figure 14As shown, the foaming agent is introduced into the second liquid inlet channel 112 of the spray head body 11 through the second liquid inlet 115, the flow control member 13 is switched from the first state to the second state, the cross-sectional area of the first liquid inlet channel 111 is reduced, and then water is introduced into the first liquid inlet channel 111 of the spray head body 11 through the first liquid inlet 114. Under the action of the liquid pressure in the second liquid inlet channel 112, the flow control member 13 remains in the second state, the cross-sectional area of the first liquid inlet channel 111 is relatively small, and the water flow is accelerated when passing through the flow control member 13. After the accelerated water flow converges with the foaming agent, a rapid water flow with the foaming agent is formed. When this water flow enters the liquid outlet channel 113, the liquid outlet channel 113 will not be filled. Since the air inlet 118 is at the top, there will be a gap between the water flow and the air inlet 118. At this time, due to the Venturi effect, a negative pressure is formed in the liquid outlet channel 113, air enters the liquid outlet channel 113 from the air inlet 118 to participate in the foaming process, and foam is formed. When the flushing spray head 10 is used for a toilet, the water flowing out can form foam on the water seal surface and has a wall lubricating and sterilizing and cleaning effect. Since the flow is small, siphoning can be avoided to wash away the foam. In summary, the above flushing spray head 10 can change the cross-sectional area of the first liquid inlet channel 111 by introducing liquid into different liquid inlets (including the first liquid inlet 114 and the second liquid inlet 115) of the spray head body 11, so as to realize the switching of the flushing spray head 10 between the flushing working state and the foaming working state without the help of a switching valve. The manufacturing cost and the later maintenance cost of the entire flushing spray head 10 are low.

[0050] Among them, the foaming agent can select different types of foaming agents according to its specific use, which is not limited here. For example, when the foaming agent is applied to a toilet, an acidic substance (such as hydrochloric acid or citric acid) can be additionally added to the conventional foaming agent (usually composed of a surfactant, water and a thickening agent) to dissolve scale and uric acid, a bleaching agent (such as sodium hypochlorite) to bleach and sterilize, and a perfume to mask odors.

[0051] In some embodiments, the second liquid inlet channel 112 is arranged above the first liquid inlet channel 111 and the liquid outlet channel 113, so that the weight of the flow control member 13 can cooperate with the liquid introduced into the second liquid inlet channel 112 to move the flow control member 13 towards the first liquid inlet channel 111, thereby reducing the required power of the power element used to introduce fluid into the second liquid inlet channel 112, and further reducing the use cost of the flushing spray head 10.

[0052] Of course, the second liquid inlet channel 112 can also be arranged below the first liquid inlet channel 111 and the liquid outlet channel 113, which will not be described here.

[0053] In some embodiments, in order to improve the stability of the water flow entering the outlet channel 113 through the first inlet channel 111, the axis of the first inlet channel 111 and the axis of the outlet channel 113 are arranged in parallel. On this basis, in order to realize the state switching of the flow control piece 13 more quickly, the axis of the second inlet channel 112 is perpendicular to the axis of the first inlet channel 111 and the axis of the outlet channel 113. The side of the flow control piece 13 facing the first inlet port 114 is provided with a flow regulation surface 133, which is inclined in the direction gradually away from the second inlet port 115 to the outlet port 116.

[0054] The force of the liquid in the first inlet channel 111 acting on the flow regulation surface 133 is decomposed into a horizontal force and a vertical force, and the vertical force can push the flow control piece 13 to move away from the first inlet channel 111, and the flow control piece 13 is switched from the second state to the first state. Optionally, the first inlet channel 111 is coaxially arranged with the second inlet channel 112. It can be understood that the arrangement of the flow regulation surface 133 does not necessarily require that the axis of the second inlet channel 112 is perpendicular to the axis of the first inlet channel 111, as long as the force of the liquid acting on the flow regulation surface 133 can be decomposed into a force towards the second inlet port 115.

[0055] In other embodiments, the first inlet channel 111 and the second inlet channel 112 are arranged at an obtuse angle, at this time, the force of the liquid in the first inlet channel 111 impacting the flow control piece 13 can also be decomposed into a horizontal force and a vertical force, thereby pushing the flow control piece 13 to move away from the first inlet channel 111, and the flow control piece 13 is switched from the second state to the first state.

[0056] Reference Figure 3 As shown, the flow control piece 13 is provided with a water passing hole 1341, when in the second state, the flow control piece 13 is attached to the inner wall surface of the first inlet channel 111, and the flow control piece 13 can block the communication port connecting the first inlet channel 111 and the outlet channel 113, the first inlet channel 111 is connected to the outlet channel 113 through the water passing hole 1341, that is, the area of the water passing hole 1341 is the flow area of the first inlet channel 111 when the flow control piece 13 is in the second state. It can be understood that the arrangement of the water passing hole 1341 can accurately control the flow area of the first inlet channel 111, and thus accurately control the flow rate of the formed water flow.

[0057] In order to enable the foaming agent to fully mix with the water flow passing through the water passing hole 1341, improve the utilization efficiency of the foaming agent, the outer diameter of the flow control piece 13 should be consistent with the inner diameter of the second liquid inlet channel 112 as far as possible under the premise of retaining the active gap, at the same time, the outer diameter of the flow control piece 13 is consistent with the inner diameter of the second liquid inlet channel 112, which can also improve the stability of the flow control piece 13 in the second liquid inlet channel 112. On this basis, the flow control piece 13 is also provided with a liquid outlet hole 1312, when the flow control piece 13 is in the second state, the liquid outlet hole 1312 communicates the second liquid inlet channel 112 and the liquid outlet channel 113, or the liquid outlet hole 1312 communicates the second liquid inlet channel 112 and the first liquid inlet channel 111, so that the foaming agent entering the second liquid inlet channel 112 can mix with the water flow through the liquid outlet hole 1312 to form a mixed water flow capable of generating foam. Of course, the outer diameter of the flow control piece 13 can also be smaller than the inner diameter of the second liquid inlet channel 112.

[0058] Reference Figure 3 As shown, the flow control piece 13 includes a first sleeve 131, a second sleeve 132 and a water passing sleeve 134, the side of the second sleeve 132 facing the second liquid inlet 115 is open, the rectifying surface 133 blocks the side of the second sleeve 132 away from the second liquid inlet 115, one of the outer circumferential surface of the second sleeve 132 and the inner wall surface of the second liquid inlet channel 112 is provided with a limiting recess 1322, and the other is provided with a limiting protrusion 119, the flow control piece 13 and the nozzle main body 11 are connected by sliding through the limiting recess 1322 and the limiting protrusion 119, the first sleeve 131 and the water passing sleeve 134 are both located in the second sleeve 132, the axis of the first sleeve 131 is parallel to the axis of the second sleeve 132, the side of the first sleeve 131 facing the second liquid inlet 115 is open, and the side of the first sleeve 131 away from the second liquid inlet 115 is closed, the flow passage is formed between the first sleeve 131 and the second sleeve 132, the water passing sleeve 134 is perpendicular to the first sleeve 131, the water passing hole 1341 is formed in the water passing sleeve 134, the pressure cavity 1311 is arranged in the first sleeve 131, the liquid outlet hole 1312 communicates the pressure cavity 1311, at the same time, the flushing nozzle 10 also includes a liquid inlet cover 14, the liquid inlet cover 14 includes a cover main body 141 and a guide part 142, the cover main body 141 is fixed to the second liquid inlet 115 in a way not limited to clamping or bolt connection, the guide part 142 is perpendicular to the cover main body 141 and is inserted into the pressure cavity 1311 and connected with the flow control piece 13 in the axial direction of the second liquid inlet channel 112, the guide part 142 is provided with a liquid injection channel 1421 communicating the pressure cavity 1311, the cover main body 141 is provided with a liquid injection opening 1411 communicating the liquid injection channel 1421 and the outside, through the arrangement of the liquid inlet cover 14, the foaming agent can enter the pressure cavity 1311 first, and then flow from the pressure cavity 1311 to the water passing hole 1341.

[0059] In an embodiment, the liquid outlet hole 1312 is in communication with the water passage hole 1341, and thus the liquid outlet channel 113 via the water passage hole 1341. Compared with being directly communicated with the first liquid inlet channel 111, the foaming agent can be directly mixed with the small water flow entering the water passage hole 1341, and the foaming effect is better.

[0060] In order to quickly reset the flow control piece 13 after stopping the foaming agent from being introduced into the second liquid inlet 115, the guide part 142 and / or the first sleeve 131 are provided with a plurality of pressure relief gaps 1422 in the circumferential direction. The foaming agent can flow from the pressure cavity 1311 to the flow cavity via the pressure relief gaps 1422, and then flow out of the flow control piece 13 and flow towards the first liquid inlet channel 111 and the liquid outlet channel 113. Meanwhile, the side wall of the second sleeve 132 is also provided with an exhaust hole 1321 connected with the flow cavity. When the liquid is introduced into the first liquid inlet channel 111, and the flow control piece 13 moves towards the second liquid inlet 115, the gas in the second liquid inlet channel 112 is discharged to the liquid outlet channel 113 via the exhaust hole 1321, so as to prevent the gas in the second liquid inlet channel 112 from hindering the movement of the flow control piece 13 towards the first liquid inlet 114. When the introduction of the foaming agent into the second liquid inlet channel 112 is stopped, and the introduction of water into the first liquid inlet channel 111 is also stopped, the foaming agent in the second liquid inlet channel 112 can be timely discharged via the exhaust hole 1321, the liquid outlet hole 1312, and the like. Obviously, by adjusting the number and size of the exhaust hole 1321, the water and gas discharge speed of the flow control piece 13 can be adjusted, and thus the state switching speed of the flow control piece 13 can be controlled.

[0061] It is worth emphasizing that the inner diameter of the liquid injection channel 1421 is greater than the diameter of the liquid outlet hole 1312, so as to form a positive pressure in the pressure cavity 1311, and thus push the flow control piece 13 to move towards the first liquid inlet channel 111, and thus switch from the first state to the second state.

[0062] Specifically, the first sleeve 131 and the second sleeve 132 are also connected with a reinforcing rib 135, so as to increase the structural strength of the flow control piece.

[0063] Reference Figure 9 As shown, the liquid inlet cover 14 also includes a buckle 143, and the nozzle body 11 is provided with a buckle hole. The liquid inlet cover 14 is quickly and detachably connected with the nozzle body 11 by means of the buckle 143 inserted into the buckle hole, so as to facilitate the maintenance or replacement of the liquid inlet cover 14 and the flow control piece 13 in the later stage.

[0064] In an embodiment, the effective flow area of the liquid outlet passage 113 is greater than that of the first liquid inlet passage 111, and the air inlet 118 is arranged on the side wall of the liquid outlet passage 113 close to one side of the first liquid inlet passage 111. After the liquid flows from the first liquid inlet passage 111 into the liquid outlet passage 113, the effective flow area is increased, which can play a role in pressure relief and buffering the water flow, thereby preventing water from flowing back and spouting out of the air inlet 118 in the first working state. In addition, when the flushing nozzle 10 is in the foaming working state, the air inlet space can be increased, the air can enter more smoothly, and the foaming effect is better.

[0065] Specifically, the nozzle body 11 includes a first body portion, a second body portion, and a third body portion, the first liquid inlet passage 111 is formed on the first body portion, the second liquid inlet passage 112 is formed on the second body portion, and the liquid outlet passage 113 is formed on the third body portion. A connecting step is formed between the first body portion and the third body portion. The nozzle body 11 further includes a shielding portion 117 arranged in the liquid outlet passage 113, one end of which is connected to the connecting step, and the other end extends to the air inlet 118. Therefore, the fluid in the first liquid inlet passage 111 is blocked by the shielding portion 117 when passing through the air inlet 118, further reducing the possibility of discharge from the air inlet 118.

[0066] The foaming member 12 includes a foaming pipe 122 and a water passing ring 121 coaxially arranged, the water passing ring 121 is sleeved on the foaming pipe 122 and fixedly connected with the foaming pipe 122, a water passing passage is formed between the water passing ring 121 and the foaming pipe 122, and a foaming passage is formed in the foaming pipe 122. By separately arranging the foaming pipe 122, the formed foam can be more delicate and concentrated.

[0067] Reference Figure 3 and Figure 12 As shown in the figures, the foaming pipe 122 is coaxially arranged with a plurality of foaming rings 124 from inside to outside, and the plurality of foaming rings 124 are arranged in the axial direction. At least one of the inner walls of the foaming rings 124 or the inner wall of the foaming pipe 122 is circumferentially provided with a plurality of tooth portions 123 to form more delicate foam. The foaming ring 124 located at the center is arranged closer to the first liquid inlet 114 than the other foaming rings 124, so as to reduce the water passing resistance and improve the flow of the flushing nozzle 10 in the flushing working state.

[0068] Reference Figure 1 and Figure 3As shown, in order to facilitate disassembly and assembly of the foaming piece 12, the flushing nozzle 10 further comprises a liquid outlet cover 15, the axial both ends of the liquid outlet cover 15 are penetrated, and the axial one end of the liquid outlet cover 15 is fixed to one end of the liquid outlet 116 of the nozzle body 11 by means of non-limited clamping or bolt connection and clamps the foaming piece 12 in cooperation with the end face of the nozzle body 11, so that when the foaming piece 12 needs to be replaced or overhauled, the liquid outlet cover 15 can be simply disassembled from the nozzle body 11.

[0069] Reference Figures 16-18 As shown, the embodiment of the present application further proposes a flushing assembly and a closestool, the closestool comprises a closestool body 60 and the flushing assembly, and the flushing assembly comprises the flushing nozzle 10, that is, the closestool comprises the flushing nozzle 10, and the flushing assembly further comprises a first liquid pump 20, a second liquid pump 30, a first water tank 40 and a second water tank 50, wherein the first water tank 40 stores tap water, the second water tank 50 stores a foaming agent, the first liquid pump 20 is connected to the first liquid inlet 114 of the flushing nozzle 10 and the first water tank 40, and the first liquid pump 20 provides power to the tap water in the first water tank 40, and the second liquid pump 30 is connected to the second liquid inlet 115 of the flushing nozzle 10 and the second water tank 50, and the second liquid pump 30 provides power to the foaming agent in the second water tank 50.

[0070] When only the first liquid pump 20 is started, the flushing nozzle 10 is in a flushing working state; when the second liquid pump 30 and the first liquid pump 20 are started in sequence, the flushing nozzle 10 is in a foaming working state, since the flow area of the flushing nozzle 10 is different in the flushing working state and the foaming working state, a large flow of flushing water can be formed in the flushing working state for flushing the ceramic surface of the closestool body 60, and at the same time, a small flow but high-speed foam can be formed in the foaming working state for covering the ceramic surface, thereby achieving good splash-proof, odor-proof and cleaning functions.

[0071] Obviously, the above-mentioned embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to exhaust all the implementation modes. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A scouring jet, characterized in that The utility model relates to a liquid spraying device, comprising: a spray head body (11) with a first liquid inlet channel (111), a second liquid inlet channel (112) and a liquid outlet channel (113) connected with each other, the first liquid inlet channel (111) and the second liquid inlet channel (112) are arranged at an angle, the spray head body (11) is further provided with a first liquid inlet (114) connected with the first liquid inlet channel (111), a second liquid inlet (115) connected with the second liquid inlet channel (112), a liquid outlet (116) connected with the liquid outlet channel (113), and an air inlet (118) connected with the liquid outlet channel (113), the air inlet (118) is arranged on the top wall of the liquid outlet channel (113); a foaming piece (12) arranged in the liquid outlet channel (113); a flow control piece (13) movably arranged in the second liquid inlet channel (112), the flow control piece (13) is provided with a flow regulating surface (133) on the side facing the first liquid inlet channel (111), the flow regulating surface (133) is inclined towards the liquid outlet (116) in a direction gradually away from the second liquid inlet (115), when the liquid in the first liquid inlet channel (111) acts on the flow regulating surface (133), a force in the direction of the second liquid inlet (115) can be decomposed, the flow control piece (13) has a first state and a second state, when only the liquid is introduced into the first liquid inlet channel (111), the flow control piece (13) can move in the direction away from the first liquid inlet channel (111) under the action of the liquid, the flow control piece (13) is switched from the second state to the first state, when the liquid is introduced into the first liquid inlet channel (111) and the second liquid inlet channel (112), the flow control piece (13) moves in the direction close to the first liquid inlet channel (111), the flow control piece (13) is switched from the first state to the second state, the flow area of the first liquid inlet channel (111) when the flow control piece (13) is in the first state is larger than the flow area of the first liquid inlet channel (111) when the flow control piece (13) is in the second state.

2. The flusher jet of claim 1, wherein The second liquid inlet channel (112) is located above the first liquid inlet channel (111) and the liquid outlet channel (113).

3. A washdown showerhead according to claim 1 or 2, characterised in that, The flow control piece (13) is provided with a water passing hole (1341) penetrating through, when in the second state, the first liquid inlet channel (111) is connected with the liquid outlet channel (113) through the water passing hole (1341).

4. The flusher jet according to claim 1 or 2, characterized in that The flow control piece (13) is further provided with a liquid outlet hole (1312), when the flow control piece (13) is in the second state, the liquid outlet hole (1312) connects the second liquid inlet channel (112) and the liquid outlet channel (113), or the liquid outlet hole (1312) connects the second liquid inlet channel (112) and the first liquid inlet channel (111).

5. The flusher jet of claim 4, wherein, The flow control member (13) comprises a first sleeve (131) and a second sleeve (132), the first sleeve (131) is located in the second sleeve (132), a pressure cavity (1311) is arranged in the first sleeve (131), the pressure cavity (1311) is communicated with the liquid outlet hole (1312), the flushing nozzle (10) further comprises a liquid inlet cover (14), the liquid inlet cover (14) comprises a cover main body (141) and a guide part (142), the cover main body (141) is fixed to the second liquid inlet (115), the guide part (142) is connected to the cover main body (141) and is inserted into the pressure cavity (1311) and movably connected with the flow control member (13), a liquid injection channel (1421) communicated with the pressure cavity (1311) is arranged in the guide part (142), and a liquid injection hole (1411) communicated with the liquid injection channel (1421) and the outside is arranged on the cover main body (141).

6. The flusher jet of claim 5, wherein, A plurality of pressure relief gaps (1422) are arranged on the guide part (142) and / or the first sleeve (131) in a circumferential direction, and a discharge hole (1321) is further arranged on the side wall of the second sleeve (132).

7. The flusher jet of claim 1 or 2, wherein An effective flow area of the liquid outlet channel (113) is greater than an effective flow area of the first liquid inlet channel (111).

8. The flusher jet of claim 1 or 2, wherein The foaming member (12) comprises a foaming pipeline (122) and a water passing ring (121) coaxially arranged, the water passing ring (121) is sleeved on the foaming pipeline (122) and fixedly connected with the foaming pipeline (122), a water passing channel is formed between the water passing ring (121) and the foaming pipeline (122), and a foaming channel is formed in the foaming pipeline (122).

9. A toilet characterized by The flushing nozzle comprises the flushing nozzle according to any one of claims 1-8.

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