Spraying head, flushing device and pedestal pan

Abstract

The utility model relates to the technical field of bathroom equipment, and discloses an injector head, a flushing device and a toilet bowl, the injector head comprises a main body piece and a flow limiting piece, an injection channel of the main body piece comprises a first channel and a second channel which are separated from each other, the flow limiting piece is arranged in the first channel, and the flow limiting piece has a first state when the water pressure is not higher than a preset value; when the water pressure is higher than a preset value, a second state is achieved, and the sectional area of the water passing opening in the second state is smaller than that in the first state. Therefore, the injector head can change the flow distribution of the first channel and the second channel according to the water pressure change, so that the jet effect of the first channel and the second channel from the water outlet is changed, dirt loosening can be facilitated, and the flushing effect is optimized. The flushing device with the injector head and the pedestal pan with the injector head also have the advantages.

Description

Technical Field

[0001] The present application relates to the technical field of sanitary equipment, and particularly relates to a spray head, a flushing device and a toilet bowl. Background Art

[0002] An upper water outlet is provided at the upper part of the toilet bowl of the toilet to form an upper flushing water flow for flushing the side wall of the toilet bowl. A spray head is provided at the bottom of the toilet bowl, which can spray water towards the sewage outlet position to form a lower flushing water flow to push the accumulated dirt into the sewage outlet. The water flow sprayed by the spray head can also promote the formation of a siphon effect in the siphon pipe, so as to wash away the dirt. In practical applications, the spraying effect of the spray head is single, and the pushing effect on the dirt accumulated at the sewage outlet position is not ideal, and it is difficult to wash away the dirt remaining at the sewage outlet position. Content of the Utility Model

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present application proposes a spray head that can change the water outlet effect according to the change of water pressure. The present application also proposes a flushing device and a toilet bowl having the spray head.

[0004] In a first aspect, a spray head according to an embodiment of the present application includes a main body member and a flow limiting member. The main body member is provided with a spray channel, the spray channel has a water inlet and a water outlet, the spray channel includes a first channel and a second channel that are separated from each other, two ends of the first channel are respectively communicated with the water inlet and the water outlet, and two ends of the second channel are respectively communicated with the water inlet and the water outlet; the flow limiting member is arranged in the first channel, and the flow limiting member partially blocks the first channel to form a water passing port in the first channel; the flow limiting member has a first state when the water pressure is not higher than a preset value, and has a second state when the water pressure is higher than the preset value, and the cross-sectional area of the water passing port in the second state is smaller than that in the first state.

[0005] The spray head according to the embodiment of the present application has at least the following beneficial effects: When the spray head is applied, the water flow entering the spray channel from the water inlet flows through the first channel and the second channel to the water outlet respectively. When the water flow pressure is not higher than the preset value (which can be defined as a low-pressure working condition), the flow limiting member can maintain the first state, and the water passing port has a larger cross-sectional area, so that the first channel has a larger flow rate. When the water flow pressure is higher than the preset value (which can be defined as a high-pressure working condition), the flow limiting member can reduce the cross-sectional area of the water passing port, thereby reducing the flow rate of the jet through the first channel, and thus the flow rate of the jet through the second channel increases accordingly. Thus, the spray head can change the flow rate distribution of the first channel and the second channel according to the high-pressure working condition or the low-pressure working condition, so as to change the jetting effect of the first channel and the second channel from the water outlet. The water flows with different jetting effects can push the dirt in different ways, which is beneficial to the loosening of the dirt and optimizes the flushing effect.

[0006] According to the injection head of some embodiments of the present application, the outer edge of the flow limiting member abuts against the inner circumferential wall of the first channel, the flow limiting member is provided with the water outlet, and the flow limiting member is configured to be driven by a water flow with a water pressure higher than the preset value to change from the first state to the second state through elastic deformation.

[0007] According to the injection head of some embodiments of the present application, the flow limiting member includes two annular deformation parts, the inner ring edges of the two deformation parts are connected and surround the water outlet, and there is a gap between the outer ring edges of the two deformation parts to form a deformation space between the two deformation parts, and the outer ring edge abuts against the inner circumferential wall of the first channel.

[0008] According to the spray head of some embodiments of the present application, the first channel has a mounting groove at one end facing the water inlet, and the outer edge of the flow limiting member is arranged in the mounting groove.

[0009] According to some embodiments of the injection head of the present application, the end of the first channel facing away from the water inlet is the first water outlet, the end of the second channel facing away from the water inlet is the second water outlet, and the directions of the first water outlet and the second water outlet have an angle θ, 0°<θ<90°.

[0010] According to some embodiments of the injection head of the present application, the first channel includes a connecting section and a guide section arranged in sequence from the water inlet to the water outlet, the connecting section is connected to the water inlet, the guide section is connected to the first water outlet, the inner wall of the guide section includes a guide wall, and the guide wall is inclined toward the second water outlet from the water inlet to the water outlet, and the guide wall has the angle θ with the extension direction of the second channel.

[0011] According to the injection head of some embodiments of the present application, the cross-sectional area of ​​the guide section is smaller than the cross-sectional area of ​​the connecting section.

[0012] According to some embodiments of the spray head of the present application, the inner wall of the connecting section includes an extension wall and an inclined wall arranged opposite to each other, the extension wall is located on the side of the inclined wall away from the second channel, and the extension wall and the inclined wall extend to the guide section; wherein, in the direction from the water inlet to the water outlet, the inclined wall is inclined toward the direction of the extension wall to form a contraction structure whose cross-sectional area gradually decreases toward the guide section.

[0013] According to the spray head of some embodiments of the present application, the first water outlet end and the second water outlet end are arranged at intervals from top to bottom, and along the direction from bottom to top, the lowest point of the edge of the first water outlet end is higher than the highest point of the edge of the second water outlet end.

[0014] For the spray head according to some embodiments of the present application, one end of the first channel facing the water inlet is the first water inlet end, and one end of the second channel facing the water inlet is the second water inlet end, where: the first water inlet end and the second water inlet end are arranged at intervals from top to bottom; and / or, the cross-sectional area of the first water inlet end is larger than that of the second water inlet end.

[0015] For the spray head according to some embodiments of the present application, the spray channel further includes a water inlet channel, the water inlet channel is located on the side of the first channel and the second channel facing the water inlet, one end of the water inlet channel penetrates through the main body to form the water inlet, and the other end communicates with the first channel and the second channel;

[0016] and / or, the spray channel further includes a water outlet channel, the water outlet channel is located on the side of the first channel and the second channel facing the water outlet, one end of the water outlet channel penetrates through the end of the main body away from the water inlet to form the water outlet, and the other end communicates with the first channel and the second channel.

[0017] In a second aspect, a flushing device according to an embodiment of the present application is applied to a toilet and includes a flushing assembly and the spray head according to any one of the above embodiments. The flushing assembly is used to connect to a water source. The flushing assembly has a first flushing channel and a second flushing channel, and the second flushing channel communicates with the spray head; the flushing modes of the flushing assembly include: a first flushing mode in which the first flushing channel is conducted and the second flushing channel is shut off, a second flushing mode in which the second flushing channel is conducted and the first flushing channel is shut off, and a third flushing mode in which the first flushing channel and the second flushing channel are simultaneously conducted; wherein, the water pressure in the second flushing channel in the third flushing mode is less than the water pressure in the second flushing mode.

[0018] The flushing device according to the embodiment of the present application has at least the following beneficial effects: during application, in the second flushing mode, the second flushing channel is independently conducted, and water flows out through the spray head by jetting. In the third flushing mode, part of the water flushes through the first flushing channel, and part of the water passes through the second flushing channel and flows out through the spray head by jetting. Therefore, compared with the second flushing mode, in the third flushing mode, the water inlet pressure of the spray head is smaller, the cross-sectional area of the water passing opening of the first channel of the spray head is larger, and the flow rate is more. Therefore, according to different flushing modes of the flushing assembly, the spray head can achieve different jetting effects, so as to meet different flushing jetting requirements under different flushing conditions, which is beneficial to improving the flushing performance.

[0019] According to some embodiments of the present application, the flushing device further includes a control module, which is in signal connection with the flushing assembly, and the control module is configured to control the flushing assembly to operate the first flushing mode, the second flushing mode, and the third flushing mode according to a set time sequence.

[0020] In a third aspect, a toilet according to an embodiment of the present application includes the aforementioned flushing device and a toilet main body. The toilet main body is provided with a toilet bowl, a sewage outlet located at the bottom of the toilet bowl, a jet nozzle located at the bottom of the toilet bowl and above the sewage outlet, and an upper flushing water inlet communicating with the upper part of the toilet bowl; the flushing assembly is connected to the toilet main body, the first flushing channel communicates with the upper flushing water inlet, the jet head is connected to the jet nozzle, and the water outlet of the jet head faces the sewage outlet.

[0021] The toilet according to the embodiment of the present application has at least the following beneficial effects: during application, in the first flushing mode, water can flow out through the upper flushing water inlet via the first flushing channel to achieve upward flushing, so that the water flushes downward from the upper part of the toilet bowl; in the second flushing mode, water can flow out through the jet head via the second flushing channel to achieve downward flushing, and the jet water flow is used to push the dirt near the sewage outlet at the bottom of the toilet bowl; in the third flushing mode, part of the water flows out through the upper flushing water inlet via the first flushing channel, and part of the water jets out through the jet head via the second flushing channel, so as to perform upward flushing and downward flushing simultaneously. Among them, as the second flushing mode and the third flushing mode of the flushing assembly are switched, the water pressure at the water inlet of the jet head can be changed to achieve different jet flow effects for downward flushing, so as to meet different flushing jet requirements under different flushing conditions, which is beneficial to improving the flushing performance.

[0022] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a toilet according to an embodiment of the present application;

[0024] Figure 2 is a schematic longitudinal sectional view of a toilet according to an embodiment of the present application;

[0025] Figure 3 is a schematic structural diagram of a jet head according to an embodiment of the present application;

[0026] Figure 4 is a schematic sectional view of a jet head according to an embodiment of the present application, where the dotted arrow indicates the water flow path;

[0027] Figure 5 is Figure 4 a partial enlarged view of part A in

[0028] Figure 6 The figure is a schematic view of the spray head according to an embodiment of the present application, observed from the water outlet towards the water inlet, where the flow limiting member is in the first state;

[0029] Figure 7 The figure is a schematic view of the spray head according to an embodiment of the present application, observed from the water outlet towards the water inlet, where the flow limiting member is in the second state;

[0030] Figure 8 The figure is a connection block diagram of the flushing control of a toilet according to an embodiment of the present application;

[0031] Figure 9 The figure is a schematic flow chart of a flushing control method according to an embodiment of the present application;

[0032] Figure 10 The figure is a schematic diagram of the flushing timing sequence of a flushing component according to an embodiment of the present application.

[0033] Reference numerals:

[0034] Toilet main body 100; Urinal 110; Sewage outlet 120; Sewage pipe 130;

[0035] Spray head 200; Main body member 201; Wall body 202; Partition member 203; Water inlet 204; Water outlet 205;

[0036] First channel 210; First water inlet end 211; Connection section 212; Guide section 213; First water outlet end 214; Guide wall 215; Inclined wall 216;

[0037] Second channel 220; Second water inlet end 221; Second water outlet end 222;

[0038] Flow limiting member 230; Deformation part 231; Deformation space 232; Water passing port 233;

[0039] Water inlet channel 240; Water outlet channel 250;

[0040] Scrubbing head 300; Upper flushing water port 310;

[0041] Flushing component 400; First flushing channel 410; Second flushing channel 420; Flushing valve 430;

[0042] Control module 500;

[0043] Water supply pipeline 600. Detailed implementation manners

[0044] The following will clearly and completely describe the concept of this application and the technical effects produced in combination with the embodiments, so as to fully understand the purpose, features, and effects of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all embodiments. Based on the embodiments of this application, other embodiments obtained by those skilled in the art without creative efforts all fall within the scope of protection of this application.

[0045] In the description of the embodiments of this application, if it involves orientation description, such as the orientation or positional relationship indicated by "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to this application.

[0046] In the description of the embodiments of this application, if a certain feature is referred to as "arranged", "fixed", "connected", "installed" on another feature, it can be directly arranged, fixed, connected, or installed on another feature, or indirectly arranged, fixed, connected, or installed on another feature. In the description of the embodiments of this application, if it involves "several", its meaning is more than one; if it involves "multiple", its meaning is more than two; if it involves "greater than", "less than", "exceeding", it should be understood as not including the number itself; if it involves "above", "below", "within", it should be understood as including the number itself. If it involves "first", "second", it should be understood as used to distinguish technical features, rather than indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0047] The embodiments of this application provide a spray head, a flushing device having the spray head, and a toilet. The spray head can change the water outlet effect according to the water pressure change, so that different flushing effects can be effectively achieved by utilizing different water pressure conditions during application. The following will be combined with the accompanying Figures 1 to 10 to introduce the embodiments of this application:

[0048] Refer to Figures 1 to 4, A toilet of some embodiments includes a flushing device and a toilet main body 100. The toilet main body 100 is provided with a toilet bowl 110, a sewage outlet 120 at the bottom of the toilet bowl 110, and an upper flushing water inlet 310 communicating with the upper part of the toilet bowl 110. The flushing device includes a flushing assembly 400 and a spray head 200. The spray head 200 is connected to the toilet main body 100 and is located at the bottom of the toilet bowl 110. The water outlet of the spray head 200 faces the sewage outlet 120. A connecting part may be provided on the outer periphery of the main body part of the spray head 200 for connecting with the toilet main body 100 to fix the spray head 200. The flushing assembly 400 is used to access a water source. The flushing assembly 400 may have a first flushing channel 410 and a second flushing channel 420. The first flushing channel 410 communicates with the upper flushing water inlet 310, and the second flushing channel 420 may communicate with the spray head 200.

[0049] The flushing device is used to flush the toilet bowl 110. Among them, water is sent to the upper flushing water inlet 310 through the first flushing channel 410 of the flushing assembly 400, and the wall surface of the toilet bowl 110 can be washed from the upper part of the toilet bowl 110. Water is sent to the spray head 200 through the second flushing channel 420 of the flushing assembly 400, and the sprayed water flow can impact the dirt accumulated near the sewage outlet 120 at the bottom of the toilet bowl 110 to flush the dirt into the sewage outlet 120, and push the stored water in the sewage outlet 120 to trigger the sewage pipe 130 to generate a siphon, so as to achieve sewage replacement through the siphon effect.

[0050] The spray head 200 of the embodiment of the present application includes a main body part 201 and a flow limiting part 230. A first channel 210 and a second channel 220 are formed inside the main body part 201. The flow limiting part 230 is located inside the main body part 201 and is connected to the main body part 201 for changing the flow rate through the first channel 210 according to the water pressure.

[0051] Reference Figure 3 and Figure 4, in some embodiments, the main body 201 is provided with a jet channel having a water inlet 204 and a water outlet 205. The jet channel includes a first channel 210 and a second channel 220 that are separated from each other. The two ends of the first channel 210 are respectively communicated with the water inlet 204 and the water outlet 205, and the two ends of the second channel 220 are respectively communicated with the water inlet 204 and the water outlet 205. For example, the main body 201 includes a wall body 202 and a partition portion. The wall body 202 surrounds the outer periphery of the partition portion to form a jet channel having a water inlet 204 and a water outlet 205. The partition member 203 is connected to the inner wall of the wall body 202 and divides the first channel 210 and the second channel 220 in the jet channel. A first channel 210 is formed by an interval between one side of the partition member 203 and the inner wall of the wall body 202, and a second channel 220 is formed by an interval between the other side of the partition member 203 and the inner wall of the wall body 202. Therefore, water can be introduced into the jet channel through the water inlet 204, and the water can be jet out from the water outlet 205 after being delivered through the two channels by the first channel 210 and the second channel 220 respectively.

[0052] Reference Figures 4 to 7 , a flow limiting member 230 is provided in the first channel 210. The flow limiting member 230 partially blocks the first channel 210 to form a water passing port 233 in the first channel 210. The flow limiting member 230 has a first state when the water pressure is not higher than a preset value and a second state when the water pressure is higher than the preset value. The cross-sectional area of the water passing port 233 in the second state is smaller than that in the first state. In application, when the water pressure at the water inlet 204 is not higher than the preset value (which can be defined as a low-pressure working condition), the flow limiting member 230 can maintain the first state, and the water passing port 233 has a larger cross-sectional area, so that the first channel 210 has a larger flow rate. When the water pressure is higher than the preset value (which can be defined as a high-pressure working condition), the flow limiting member 230 can reduce the cross-sectional area of the water passing port 233, thereby reducing the flow rate of the jet through the first channel 210, and thus the flow rate of the jet through the second channel 220 increases accordingly. Thus, the jet head 200 can automatically change the flow rate distribution between the first channel 210 and the second channel 220 with the change of the incoming water pressure, thereby changing the jetting effect of the first channel 210 and the second channel 220 from the water outlet 205. It can be understood that water flows with different jetting effects can push the dirt accumulated at the bottom of the toilet 110 in different ways, which is beneficial to loosen the dirt and make the dirt easier to be flushed away.

[0053] During application, the change in the incoming water pressure of the spray head 200 results from the change in the flow splitting situation of the flushing component 400. Therefore, different water pressure conditions can be achieved by controlling the flow splitting situation of the flushing component 400. The flow rates of the two channels of the spray head 200 are automatically distributed according to different water pressure conditions, and there is no need to separately set up a flow control structure for the two channels. Moreover, in the low-pressure condition, water can flow out through the two channels, ensuring that the spray head 200 has sufficient flow rate to spray water downward at the bottom of the toilet bowl 110. Compared with the single-channel water outlet method, the flushing time can be effectively shortened, thereby improving the flushing efficiency.

[0054] For example, the water flow pressure introduced into the spray head 200 can be changed by controlling the flow splitting situation of the flushing component 400 for the first flushing channel 410 and the second flushing channel 420. When the flushing component 400 separately conducts the second flushing channel 420, the water flow accessed by the flushing component 400 is delivered to the spray head 200 through the second flushing channel 420, realizing the water flow in the high-pressure condition. When the flushing component 400 simultaneously conducts the first flushing channel 410 and the second flushing channel 420, the water flow accessed by the flushing component 400 is split into the first flushing channel 410 and the second flushing channel 420. At this time, the water pressure in the second flushing channel 420 is lower than that when it is separately conducted, realizing the water flow in the low-pressure condition. The flow restrictor 230 can be configured to maintain the first state in the low-pressure condition and have the second state in the high-pressure condition. Therefore, the preset value of the above water pressure can be the water pressure at the water inlet 204 of the spray head 200 in the low-pressure condition. When the flushing component 400 shuts off the first flushing channel 410 and separately conducts the second flushing channel 420, the water pressure at the water inlet 204 of the spray head 200 increases, thus being higher than the above preset value, and the spray head 200 is in the high-pressure condition. Conversely, when the flushing component 400 switches from separately conducting the second flushing channel 420 to simultaneously conducting the first flushing channel 410 and the second flushing channel 420, the high-pressure condition switches to the low-pressure condition.

[0055] As mentioned above, in the high-pressure and low-pressure conditions, through the action of the flow restrictor 230, the spray head 200 can achieve different jetting effects while ensuring the overall flow rate. Therefore, the spray head 200 can meet the different jetting requirements of the toilet flushing device under different conditions, making the sewage discharge effect of flushing better.

[0056] In the ejector head 200 of some embodiments, the flow limiter 230 can change the cross-sectional area of the water passing opening 233 through elastic deformation. The outer edge of the flow limiter 230 abuts against the inner peripheral wall of the first channel 210. The flow limiter 230 is provided with the water passing opening 233. The flow limiter 230 is configured to be driven by a water flow with a water pressure higher than a preset value to change from a first state to a second state through elastic deformation, so as to reduce the cross-sectional area of the water passing opening 233, reduce the flow rate of the first channel 210, and increase the flow rate of the second channel 220 at the same time. When the water pressure is not higher than the preset value, the flow limiter 230 switches from the second state to the first state due to elastic reset, increasing the cross-sectional area of the water passing opening 233, increasing the flow rate of the first channel 210, and reducing the flow rate of the second channel 220 at the same time.

[0057] Among them, referring to Figure 4 and Figure 5 , the flow limiter 230 may include two annular deformation parts 231. The inner ring edges of the two deformation parts 231 are connected and surrounded to form the water passing opening 233. There is a gap between the outer ring edges of the two deformation parts 231, so that a deformation space 232 is formed between the two deformation parts 231, and the outer ring edge abuts against the inner peripheral wall of the first channel 210. Under high-pressure working conditions, the water flow squeezes one side of the deformation part 231, thereby compressing the deformation space 232 between the two deformation parts 231, so that the two deformation parts 231 are further folded in the direction of the radial reduction of the water passing opening 233, thereby reducing the cross-sectional area of the water passing opening 233. When switching from the high-pressure working condition to the low-pressure working condition, the two deformation parts 231 can return to the first state under the action of elastic force, thereby increasing the cross-sectional area of the water passing opening 233. Thus, the flow rate control can be realized through a simple structure. The flow limiter 230 can be integrally formed and can be made of elastic materials such as elastic plastic and rubber.

[0058] In some embodiments, the flow limiting member 230 can be moved to change the shielding area of the water passing opening 233, thereby changing the cross-sectional area of the water passing opening 233. For example, the first channel 210 may include a first cavity and a second cavity. The first cavity is located between the second cavity and the water inlet end. A water passing opening 233 is provided between the first cavity and the second cavity. The flow limiting member 230 is disposed in the first cavity and on the side of the water passing opening 233 facing the water inlet 204. A stepped surface may also be formed between the first cavity and the second cavity. The flow limiting member 230 is abutted against the stepped surface by an elastic member. When the water pressure of the water coming from the water inlet 204 does not exceed a preset value, the flow limiting member 230 is located on the side of the water passing opening 233 facing the water inlet 204 under the elastic force of the elastic member, and is in the first state. The flow limiting member 230 is configured to be driven by the water flow with a water pressure higher than the preset value to move towards the water passing opening 233 to partially shield the water passing opening 233. For example, the flow limiting member 230 moves into the water passing opening 233, occupying a part of the cross-sectional area of the water passing opening 233, thereby partially shielding the water passing opening 233 and reducing the cross-sectional area of the water passing opening 233 (here referring to the area of the water passing cross-section), so as to change from the first state to the second state. When the water pressure of the water coming from the water inlet 204 decreases to not exceed the preset value, the flow limiting member 230 returns to the side of the water passing opening 233 facing the water inlet 204 under the elastic force of the elastic member and disengages from the water passing opening 233, thereby increasing the cross-sectional area of the water passing opening 233.

[0059] In other embodiments, the flow limiting member 230 can also be a flow control valve with other structures that can reduce the valve diameter as the water pressure increases and increase the flow rate of the valve as the water pressure decreases.

[0060] In some embodiments, in the direction from the water inlet 204 to the water outlet 205, the first channel 210 may have a front section, a middle section, and a rear section that are sequentially connected. The front section is connected to the water inlet 204, and the rear section is connected to the water outlet 205. The position of the flow limiting member 230 in the first channel 210 can be located in the front section, the middle section, or the rear section.

[0061] Among them, when the flow limiting member 230 is located in the front section, the flow rate can be distributed at one end of the first channel 210 close to the water inlet 204. On the one hand, the response efficiency of the flow rate changing with the water pressure can be improved. On the other hand, the space from the middle section to the water outlet end of the first channel 210 can be avoided, leaving the space from the middle section to the water outlet end of the first channel 210, which is convenient for designing the required water outlet effect. For example, a tapered channel structure can be provided in the middle section to the water outlet end of the first channel 210 to achieve the effect of pressurized water outlet, or an inclined channel structure can be provided to achieve an angled jet effect.

[0062] Furthermore, one end of the first channel 210 facing the water inlet 204 may have a mounting groove, and the outer edge of the flow limiting member 230 is disposed in the mounting groove, thereby fixing the flow limiting member 230 at one end of the first channel 210 facing the water inlet 204.

[0063] Define the end of the first channel 210 away from the water inlet 204 as the first water outlet end 214, and the end of the second channel 220 away from the water inlet 204 as the second water outlet end 222. Refer to Figure 4 , in the spray head 200 of some embodiments, there is an included angle θ between the orientation of the first water outlet end 214 and the orientation of the second water outlet end 222, where 0° < θ < 90°. That is to say, there is an included angle θ between the water outlet directions of the first water outlet end 214 and the second water outlet end 222, realizing a jet flow mode with different angles for the two channels. Among them, the value of θ can be 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75° or other values within the range of 0° to 90°.

[0064] During application, when the spray head 200 is installed at the bottom of the toilet 110, the first water outlet end 214 can be located above the second water outlet end 222. The second water outlet end 222 can face horizontally or nearly horizontally, and the first water outlet end 214 can be inclined downward, forming an acute angle θ with the second water outlet end 222. Thus, when spraying water, a horizontal or nearly horizontal water flow can be formed through the second water outlet end 222, which can push the dirt at the bottom of the toilet 110 along the horizontal direction. At the same time, an inclined downward water flow can be realized through the first water outlet end 214, which can push the dirt along the inclined direction, facilitating shaking the bottom of the dirt, so that it is easily washed away by the water flow. Moreover, the inclined downward water flow can scour the wall surface at the bottom of the toilet 110, which is beneficial to removing small-volume dirt.

[0065] When switching between the high-pressure working condition and the low-pressure working condition, the jet flow rates from the first water outlet end 214 and the second water outlet end 222 are different, realizing different jet effects, so that different pushing effects can be produced on the accumulated dirt. For example, in the high-pressure working condition, the flow rate of the first channel 210 decreases, and the water flow mainly sprays out through the second water outlet end 222 of the second channel 220, forming a greater thrust. At the same time, a smaller-flow jet is formed at the first water outlet end 214, which can scour the wall surface at the bottom of the toilet 110 to a certain extent and also has a certain pushing effect on the bottom of the dirt. In the low-pressure working condition, although the thrust of the jet flow decreases and the flow velocity slows down, the flow rate of the first channel 210 increases, and the water flow mainly sprays through the first channel 210, which can flow along the wall surface at the bottom of the toilet 110 to scour its surface, realizing different scouring effects.

[0066] Among them, the inclined water outlet at the first water outlet end 214 can be realized by arranging a guiding wall 215 extending to the first water outlet end 214 in the first channel 210. For example, refer to Figure 4, the first channel 210 may include a connecting section and a guiding section 213 arranged in sequence from the water inlet 204 to the water outlet 205. The connecting section is connected to the water inlet 204, and the guiding section 213 is connected to the first water outlet end 214. The extending direction of the guiding section 213 is inclined with respect to the extending direction of the second channel 220, forming an inclined channel structure with an inclined angle θ, such that the water outlet directions of the first water outlet end 214 and the second water outlet end 222 form an angle θ.

[0067] Reference Figure 4 , in some embodiments, the inner wall of the guiding section 213 includes a guiding wall 215. In the direction from the water inlet 204 to the water outlet 205, the guiding wall 215 is inclined towards the second water outlet end 222, and the guiding wall 215 has an angle θ with the extending direction of the second channel 220, so as to obliquely guide the water flow in the guiding section 213 towards the side of the second water outlet end 222 away from the water inlet 204, forming an outgoing water flow inclined towards the second water outlet end 222. Among them, the inner wall of the guiding section 213 relatively close to the second channel 220 and the inner wall relatively far from the first channel 210 may both have a guiding wall 215, and the inclined angles θ of the two guiding walls 215 may be equal or unequal.

[0068] Reference Figure 4 , in some embodiments, the cross-sectional area of the guiding section 213 may be set to be smaller than that of the connecting section. When the water flow in the connecting section passes through the guiding section 213, pressure can be increased, thereby enhancing the scouring force of the water flow jetting from the first water outlet end 214. Among them, the inner wall of the connecting section includes an extending wall and an inclined wall 216 arranged oppositely. The extending wall is located on the side of the inclined wall 216 away from the second channel 220, and the extending wall and the inclined wall 216 extend to the guiding section 213. In the direction from the water inlet 204 to the water outlet 205, the inclined wall 216 is inclined towards the extending wall, so as to form a contraction structure with a gradually decreasing cross-sectional area towards the guiding section 213, enabling the water flow in the connecting section to be gradually pressurized during the process of converging towards the guiding section 213.

[0069] Reference Figures 3 to 7, in the ejector head 200 of some embodiments of the present application, the first water outlet end 214 and the second water outlet end 222 are arranged in a staggered manner, and jet water flows at different positions can be formed. For example, the two can be arranged at intervals from top to bottom, and the first water outlet end 214 is located above the second water outlet end 222. The shape of the first water outlet end 214 can be square, circular, arc-shaped, or a porous shape including a plurality of openings arranged at intervals. Similarly, the shape of the second water outlet end 222 can also be square, circular, arc-shaped, or a porous shape including a plurality of openings arranged at intervals. As an example, the shape of the first water outlet end 214 is square, and the second water outlet end 222 is arc-shaped. Along the direction from bottom to top, the position of the lowest point of the edge of the first water outlet end 214 is higher than the position of the highest point of the edge of the second water outlet end 222. Specifically, the lowest point of the outer wall surface of the main body 201 along the direction from top to bottom can be used as a reference point. Among them, the height of the lowest point of the edge of the first water outlet end 214 relative to this reference point is higher than the height of the highest point of the edge of the second water outlet end 222 relative to this reference point. Thus, during jet flow, the water flows of the two water outlet ends can be prevented from impacting each other and affecting the thrust.

[0070] Define the end of the first channel 210 facing the water inlet 204 as the first water inlet end 211, and the end of the second channel 220 facing the water inlet 204 as the second water inlet end 221. In some embodiments, the first water inlet end 211 and the second water inlet end 221 are arranged at intervals from top to bottom, forming a compact structure. They can respectively correspond to the first water outlet end 214 and the second water outlet end 222 arranged up and down, so that the first channel 210 and the second channel 220 that are directly connected in the direction from the water inlet 204 to the water outlet 205 can be formed. This is not only convenient for processing but also reduces the turning of the water flow, and the water flow can directly flow from the water inlet 204 to the water outlet 205 in the direction of the water outlet 205.

[0071] In the ejector head 200 of some embodiments, the cross-sectional area of the first water inlet end 211 is larger than the cross-sectional area of the second water inlet end 221, which is beneficial to making most of the water flow out through the first channel 210 under low-pressure working conditions, ensuring the scouring flow rate and improving the scouring effect on the bottom wall surface of the toilet 110. And in some embodiments, the first channel 210 is provided with a guiding section 213 with a smaller cross-sectional area, which can achieve a certain effect of pressurized jet flow.

[0072] In the ejector head 200 of the embodiments of the present application, the first channel 210 and the second channel 220 can extend to the water inlet 204 to respectively form separated first water inlet end 211 and second water inlet end 221, and the water flow can be split while entering the water inlet 204. Or, refer to Figure 4 , the first water inlet end 211 and the second water inlet end 221 of the first channel 210 and the second channel 220 do not extend to the water inlet 204, and the water flow is split after entering the water inlet 204. For example, refer to Figure 4In some embodiments, the jet channel further includes a water inlet channel 240, which is located on the side of the first channel 210 and the second channel 220 facing the water inlet 204. One end of the water inlet channel 240 passes through the main body 201 to form the water inlet 204, and the other end is connected to the first channel 210 and the second channel 220, that is, the first water inlet end 211 of the first channel 210 and the second water inlet end 221 of the second channel 220 are connected to the water inlet 204 through the water inlet channel 240. Water flows into the water inlet 204 and reaches the water inlet channel 240, and then enters the first water inlet end 211 and the second water inlet end 221 to achieve flow distribution.

[0073] In the spray head 200 of the embodiment of the present application, the first channel 210 and the second channel 220 can extend to the water outlet 205 to form a first water outlet end 214 and a second water outlet end 222, respectively, and the water in the two channels can be ejected through the two water outlet ends. Figure 4 , the first water outlet end 214 and the second water outlet end 222 of the first channel 210 and the second channel 220 do not extend to the water outlet 205, and the jet channel further includes a water outlet channel 250, which is located on the side of the first channel 210 and the second channel 220 facing the water outlet 205, one end of the water outlet channel 250 passes through the end of the main body 201 away from the water inlet 204 to form the water outlet 205, and the other end is connected to the first channel 210 and the second channel 220, that is, the first water outlet end 214 and the second water outlet end 222 are connected to the water outlet 205 through the water outlet channel 250. The cross-sectional range of the water outlet channel 250 covers the first water outlet end 214 and the second water outlet end 222 to avoid obstructing the water flow of the two water outlet ends.

[0074] refer to Figure 1 and Figure 2 The flushing device of the embodiment of the present application includes a flushing component 400 and a spray head 200 of any of the above embodiments. The flushing component 400 is used to connect to a water source. The flushing component 400 has a first flushing channel 410 and a second flushing channel 420. The second flushing channel 420 is connected to the spray head 200.

[0075] The flushing modes of the flushing assembly 400 include: a first flushing mode in which the first flushing channel 410 is turned on and the second flushing channel 420 is turned off, a second flushing mode in which the second flushing channel 420 is turned on and the first flushing channel 410 is turned off, and a third flushing mode in which both the first flushing channel 410 and the second flushing channel 420 are turned on. The flushing assembly 400 can switch between different flushing modes according to flushing needs. In the first flushing mode, the first flushing channel 410 is turned on and the second flushing channel 420 is turned off. Therefore, the spray head 200 does not perform a jet, and water flows through the first flushing channel 410 for flushing; in the second flushing mode, the first flushing channel 410 is turned on and the second flushing channel 420 is turned off. Therefore, the spray head 200 does not perform a jet, and water flows through the first flushing channel 410 for flushing; The second flushing channel 420 is turned on and the first flushing channel 410 is turned off, so the water flows through the second flushing channel 420 and ejects water through the spray head 200; in the third flushing mode, the first channel 210 and the second channel 220 are both turned on, and part of the water flows through the first flushing channel 410 for flushing, and part of the water flows through the second flushing channel 420 and ejects water through the spray head 200, so that in the third flushing mode and the second flushing mode, the flow distribution of the first channel 210 and the second channel 220 in the spray head 200 is different, and the water pressure in the second flushing channel 420 in the third flushing mode is lower than the water pressure in the second flushing mode.

[0076] The flushing device is applied to a toilet. In the second flushing mode, the second flushing channel 420 is opened alone, and the water flows out through the jet head 200. In the third flushing mode, part of the water flows through the first flushing channel 410, and part of the water flows through the second flushing channel 420 and flows out through the jet head 200. Therefore, compared with the second flushing mode, in the third flushing mode, the water inlet pressure of the jet head 200 is relatively small, the cross-sectional area of ​​the water outlet 233 of the first channel 210 of the jet head 200 is relatively large, and the flow rate is greater. Therefore, according to different flushing modes of the flushing assembly 400, the jet head 200 can achieve different jet effects, thereby meeting different flushing requirements under different flushing conditions, which is conducive to improving the flushing performance.

[0077] refer to Figure 1 , Figure 2 and Figure 8 In some embodiments of the flushing device, the flushing device further includes a control module 500. The control module 500 is connected to the flushing component 400 by signal, and the control module 500 is configured to control the flushing component 400 to run the first flushing mode, the second flushing mode, and the third flushing mode according to a set timing, so as to realize automatic control of the flushing component 400.

[0078] In some embodiments, the flushing assembly 400 may include a flushing valve 430, a first connecting pipe and a second connecting pipe connected to the flushing valve 430. The water inlet side of the flushing valve 430 is connected to tap water. For example, the water inlet pipe of the flushing valve 430 is connected to the tap water pipeline 600 to achieve pressure-type (or direct-in type) flushing. A first flushing channel 410 is formed inside the first connecting pipe, and a second flushing channel 420 is formed inside the second connecting pipe. The water distribution device is controlled to selectively switch the following conduction modes:

[0079] Conduct the first flushing channel 410 and shut off the second flushing channel 420, so that the flushing assembly 400 is in the first flushing mode; or conduct the second flushing channel 420 and shut off the first flushing channel 410, so that the flushing assembly 400 is in the second flushing mode; or conduct the first flushing channel 410 and the second flushing channel 420, so that the flushing assembly 400 is in the third flushing mode.

[0080] The control module 500 may be signal-connected to the flushing valve 430, so as to control the operation of the flushing valve 430 according to the set timing to achieve the switching of the above flushing modes. Among them, the flushing valve 430 may adopt a commonly used water distribution valve with a water distribution function, and the conduction, shut-off or partial conduction of the set channels is realized through the movement of the water distribution valve core, which will not be elaborated here.

[0081] The principle and method for the control module 500 to control the flushing valve 430 to switch the flushing mode according to the set timing can be easily realized by those skilled in the art according to the existing controller functions and the content disclosed in the present application. For example, instructions for performing timing control, logical operations, etc. can be stored inside the controller, and the operation of the flushing valve 430 can be controlled through digital or analog input and output.

[0082] Reference Figure 1 and Figure 2 and

[0083] During application, in the first flushing mode, water flow can pass through the first flushing channel 410 and flow out through the upper flushing water outlet 310 to achieve upward flushing, so that the water flushes downward from the upper part of the toilet bowl 110. In the second flushing mode, water flow can pass through the second flushing channel 420 and jet out through the jet head 200 to achieve downward flushing. The jet water flow is used to push the dirt near the sewage outlet 120 at the bottom of the toilet bowl 110. In the third flushing mode, part of the water flow passes through the first flushing channel 410 and flows out through the upper flushing water outlet 310, and part of the water flow passes through the second flushing channel 420 and jets out through the jet head 200, so as to perform upward flushing and downward flushing simultaneously. Among them, as the second flushing mode and the third flushing mode of the flushing assembly 400 are switched, the water pressure at the water inlet 204 of the jet head 200 can be changed to achieve different jet effects of downward flushing, so as to meet different flushing and jetting requirements under different flushing conditions, which is beneficial to improving the flushing performance. The toilet can include a scrubbing head 300. The scrubbing head 300 is installed on the upper part of the toilet main body 100. The water inlet end of the scrubbing head 300 is connected to the first flushing channel 410, and the water outlet end of the scrubbing head 300 forms the upper flushing water outlet 310. The water flow in the first flushing channel 410 is sprayed out through the scrubbing head 300 to perform upward flushing and scrubbing on the ceramic bladder of the toilet bowl 110.

[0084] There are still problems of noise and splashing during flushing in the related art toilets. Specifically, some toilets adopt a flushing method of alternately performing upward flushing - downward flushing - upward flushing in sequence to first wash the upper part of the toilet through the upper flushing water outlet 310, replenish water to the bottom sewage outlet 120, then close the upward flushing, open the downward flushing jet to form a siphon, then close the downward flushing, and open the upward flushing again to replenish the water seal in the sewage outlet 120 at the bottom of the toilet bowl 110. After the replenishment is completed, the flushing mode is closed. There are also some toilets that add one more downward flushing - upward flushing after the second upward flushing, that is, adopt a flushing method of alternately performing upward flushing - downward flushing - upward flushing - upward flushing - downward flushing in sequence, which can improve the sewage discharge effect. However, in actual application, when the flushing is started, especially at the moment when the upward flushing is started, the high-pressure and high-flow water rapidly advances in the first flushing channel 410 communicating with the upper flushing water outlet 310. The water flow squeezes the air originally existing in the pipeline. Since the air density is small, the water flow advancing speed will be very fast, and the air will be quickly pushed to the outlet position of the upper flushing water outlet 310, which will form an air blasting sound. At the same time, the water flow speed is extremely fast and the range is increased, resulting in splash during startup. During the downward flushing process, high-pressure and high-flow water is generated when the downward flushing is started. The water sprays out from the downward flushing nozzle, triggering the siphon of the sewage pipe to quickly empty the water stored at the sewage outlet 120 at the bottom of the toilet bowl 110 to achieve sewage replacement. In the latter stage of the siphon completion, the downward flushing is maintained for a period of time to wash away the small-volume dirt that may exist. At this time, the water column is exposed to the air, generating a great empty spraying noise, which affects the experience. Using the toilet according to the embodiment of the present application can effectively eliminate or weaken the above problems.

[0085] Reference Figures 4 to 10, the toilet according to the embodiment of the present application can adopt the following flushing control method: in response to a flushing signal, control the flushing assembly 400 to execute a flushing mode according to a set time sequence, including: executing a first flushing mode within time T2, executing a second flushing mode within time T3, executing a third flushing mode within time T4, and executing a first flushing mode within time T5; T2, T3, T4, and T5 are sequentially consecutive time periods.

[0086] During flushing, starting the flushing switch can form a flushing signal. During the flushing process, the flushing assembly 400 performs upward flushing, downward flushing, simultaneous upward and downward flushing, and upward flushing successively within the time period from T2 to T5. On the one hand, the upper part of the toilet bowl 110 can be flushed through separate upward flushing. On the other hand, through the separate downward flushing and the water flow change of simultaneous upward and downward flushing, different water pressure conditions can be provided for the downward flushing nozzle 200 to achieve different jet effects, which is beneficial to improving the flushing efficiency of dirt. And during the downward flushing within time T3, at this time, the flushing assembly 400 conducts the second flushing channel 420 and shuts off the first flushing channel 410, and all the water flows through the second flushing channel 420 into the nozzle 200. The nozzle 200 works alone to achieve the jet effect of the water flow jetting through the first channel 210 and the second channel 220 under high-pressure conditions, and the strong force can push the dirt and trigger siphon; after T3, through the third flushing mode of T4 for upward and downward flushing, the water pressure of the water coming to the nozzle 200 is reduced, so as to reduce the downward flushing water pressure and flow rate of the nozzle 200, and achieve the jet effect of the nozzle 200 under low-pressure conditions. The water flow can flow along the wall to flush the wall surface at the bottom of the toilet bowl 110, which is beneficial to effectively reducing the empty spraying noise in the latter stage of the single downward flushing in T3.

[0087] Among them, in some embodiments, controlling the flushing assembly 400 to execute the flushing mode according to the set time sequence further includes: before T2, executing the third flushing mode within time T1. That is to say, before the upward flushing of the first flushing mode is carried out alone, the simultaneous upward and downward flushing of the third flushing mode is carried out first. T1 can start from the response to the flushing signal, that is, the third flushing mode is adopted at the moment of starting flushing. At this time, the flushing assembly 400 divides the water flow into the first flushing channel 410 and the second flushing channel 420, and both flushing channels are in a low-pressure condition. Compared with the first flushing mode, the water pressure and flow rate in the first flushing channel 410 are reduced, so the flow rate is reduced, and the air in the pipeline can be discharged slowly, effectively eliminating or weakening the blasting sound at the moment of spraying at the start-up moment, and effectively eliminating or weakening the water droplet splashing brought out by the air explosion.

[0088] Among them, T1, T2, T3, T4, and T5 are sequentially consecutive time periods, refer to Figure 9 , Figure 9Among them, the upper line L1 represents the up-flush timing sequence, the lower line L2 represents the down-flush timing sequence, the horizontal axis t represents the time axis, and t0 to t5 on the t-axis are time points. t0 is the starting time point when flushing starts, and T1 is the duration from the start t0 to t1. Within T1, the flushing component executes the third flushing mode, and the up-flush and down-flush are synchronized and overlapped. T2 is the duration from t1 to t2. Within T2, the flushing component executes the first flushing mode, with the up-flush maintained and the down-flush closed. T3 is the duration from t2 to t3. Within T3, the flushing component switches to the first flushing mode, closing the up-flush and opening the down-flush simultaneously. T4 is the duration from t3 to t4. Within T4, the flushing component executes the third flushing mode again, with the down-flush maintained and the up-flush opened for an overlapping condition. T5 is the duration from t4 to t5. Within this duration, the flushing component executes the first flushing mode, maintaining the up-flush and closing the down-flush.

[0089] In specific applications, the activation of the flushing switch can be manual operation or induction activation. For example, the flushing switch can be manually operated by the user (such as a physical switch, a touch switch, or an induction switch), or the flushing switch can be activated by sensing that the user has left the usage position after use through human body sensing.

[0090] Reference Figure 9 and Figure 10 , the toilet of an embodiment of the present application can perform flushing control according to the following steps:

[0091] S100: In response to the flushing signal, control the flushing component 400 to execute the third flushing mode, with the up-flush and down-flush opened simultaneously, and maintain for T1;

[0092] S200: Switch to the first flushing mode, close the down-flush and maintain the up-flush for T2;

[0093] S300: Switch to the second flushing mode, close the up-flush and open the down-flush simultaneously for a certain period of time T3, and the siphon is nearly over;

[0094] S400: Switch to the third flushing mode again, maintain the down-flush and open the up-flush, and hold for a short time T4;

[0095] S500: Switch to the first flushing mode, close the down-flush and maintain the up-flush for T5 to replenish the ceramic water seal until the required water surface is reached, and then the up-flush is also closed, and a flushing process ends.

[0096] The toilet of the embodiment of the present application applies the above flushing control method. Through the timing control of the first flushing mode, the second flushing mode, and the third flushing mode, the changes in the water pressure conditions and the flow rate distribution of the upward flushing and the downward flushing can be realized, which is not only beneficial to reducing noise, but also, during a flushing process (for example, during the process from T1 to T5, or from T2 to T5), the downward flushing nozzle 200 can automatically distribute the flow rate of the dual channels along with the change of the water pressure condition of the downward flushing, so as to achieve different jet effects.

[0097] As an example, the flushing process of the toilet of the embodiment of the present application is as follows:

[0098] When starting to flush, the flushing assembly 400 executes the third flushing mode, and the upward flushing and the downward flushing are carried out simultaneously, maintaining T1, which can be called the overlapping condition of the upward flushing and the downward flushing. At this time, the upward flushing and the downward flushing are shunted, and the first flushing channel 410 and the second flushing channel 420 are in the low-pressure condition. The water flow rate of the tap water passing through the flushing valve 430 to the scrubbing head 300 at the upward flushing water port 310 is reduced, the water flow velocity is decreased, and the water can slowly discharge the air in the scrubbing pipeline from the upward flushing water port 310, effectively eliminating or weakening the blasting sound at the moment of the initial spray from the scrubbing head 300 and the water droplet splashing brought out by the air explosion, so as to eliminate or weaken the splashing problem at the starting moment. At the same time, since the second flushing channel 420 is in the low-pressure condition, the water inlet position of the nozzle 200 is at low pressure, the water passing cross-sectional area of the water passing port 233 of the flow restrictor 230 is relatively large, and the water in the second flushing channel 420 mainly flows through the first channel 210 of the nozzle 200, forming a jet flow with an angle downward with the horizontal at the water outlet 205, forming a small-thrust water flow flowing along the ceramic wall surface at the bottom of the toilet bowl 110, which plays a role in loosening the base of the dirt accumulated at the sewage outlet 120 position and creating the conditions for subsequent siphon and jet to push away the dirt.

[0099] When T1 ends, the flushing assembly 400 switches to execute the first flushing mode to close the downward flushing and perform the upward flushing alone, maintaining T2. At this time, it can be called the stable scrubbing condition. Since the scrubbing pipeline was filled with water at T1, the water has a greater density than air, which plays a better buffering role for the subsequent water, ensuring the stability of the entire flow state and stably completing the scrubbing action of the ceramic bladder of the toilet bowl 110.

[0100] When T2 ends, the flushing assembly 400 switches to execute the second flushing mode, closing the upper flush and opening the lower flush simultaneously, maintaining T3. At this time, the lower flush works alone, and the second flushing channel 420 is in a high-pressure condition. At this time, the water flow velocity is the highest. The flow-limiting member 230 of the spray head 200 reduces the cross-sectional area of the water passing port 233 under the action of water pressure, thereby reducing the flow rate of the first channel 210. The water flow in the second flushing channel 420 is concentrated and sprayed out from the first channel 210, forming a large forward thrust, driving the water at the sewage outlet 120 at the bottom of the toilet 110 to seal the water and trigger siphon, starting to suck away the dirt in front of the sewage outlet 120 of the elbow pipe. Moreover, due to the action of the third flushing mode of T1, the base of the dirt is effectively loosened, so its state in water becomes easier to be taken away by siphon, and the flushing and sewage discharge capacity is improved. After a certain period of time T3, the siphon is approaching the end, and most of the dirt has been taken away by siphon.

[0101] When T3 ends, the flushing assembly 400 switches to execute the third flushing mode. The lower flush is maintained and the upper flush is opened, so that the upper flush and the lower flush are carried out simultaneously, maintaining T4. At this time, it enters the overlapping condition again. The first flushing channel 410 and the second flushing channel 420 are in a low-pressure condition. The water inlet position of the spray head 200 becomes low pressure. The cross-sectional area of the water passing port 233 of the flow-limiting member 230 is relatively large. The water in the second flushing channel 420 mainly flows through the first channel 210 of the spray head 200, forming a jet flow at an angle downward with the horizontal at the water outlet 205, forming a water flow with a small thrust that adheres to and flows along the ceramic wall surface at the bottom of the toilet 110. The low-speed water flow takes away the small-volume dirt that may remain at the bottom. Moreover, at this time, the water flow speed is low and it flows along the wall, reducing the air spraying noise in the latter section of the spraying. At the same time, the water flow speed of the first flushing channel 410 decreases, and the water flow can enter the flushing pipe line more slowly. When the flushing is restarted, the flushing state of T1 can also be achieved, eliminating the air blasting sound and starting splashing.

[0102] When T4 ends, the flushing assembly 400 switches to execute the first flushing mode. The lower flush is closed and the upper flush maintains T5 to replenish the ceramic water seal at the bottom of the toilet 110 until the required water surface level is reached, and then the upper flush is also closed, and the flushing ends.

[0103] The spray head 200, the flushing device and the toilet of the embodiment of the present application can achieve different flushing effects under different water pressure conditions through the spray head 200, effectively improving the flushing performance and sewage discharge efficiency. Some embodiments can effectively eliminate or reduce noise and splashing, and can be applied to toilets in household or public occasions, which is beneficial to improving the use experience.

[0104] The embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present application within the scope of knowledge possessed by those of ordinary skill in the art. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. Inkjet head, characterized in that, include: The main body is provided with an injection channel, the injection channel has a water inlet and a water outlet, the injection channel includes a first channel and a second channel separated from each other, the two ends of the first channel are respectively connected to the water inlet and the water outlet, and the two ends of the second channel are respectively connected to the water inlet and the water outlet; A flow limiting member is arranged in the first channel, and the flow limiting member partially blocks the first channel to form a water outlet in the first channel; the flow limiting member has a first state when the water pressure is not higher than a preset value, and has a second state when the water pressure is higher than the preset value, and the cross-sectional area of ​​the water outlet in the second state is smaller than the cross-sectional area in the first state.

2. The ejector head according to claim 1, characterized in that, The outer edge of the flow limiting member abuts against the inner circumferential wall of the first channel, the flow limiting member is provided with the water outlet, and the flow limiting member is configured to be driven by a water flow with a water pressure higher than the preset value to change from the first state to the second state through elastic deformation.

3. The ejector head according to claim 2, wherein, The flow limiting member includes two annular deformation parts, the inner ring edges of the two deformation parts are connected and surround the water outlet, and there is a gap between the outer ring edges of the two deformation parts so that a deformation space is formed between the two deformation parts, and the outer ring edge abuts against the inner circumferential wall of the first channel.

4. The jet head according to claim 2, characterized in that, One end of the first channel facing the water inlet is provided with a mounting groove, and the outer edge of the flow limiting member is arranged in the mounting groove.

5. The ejector head according to claim 1, characterized in that, One end of the first channel away from the water inlet is a first water outlet, and one end of the second channel away from the water inlet is a second water outlet. The first water outlet and the second water outlet have an angle θ, 0°<θ<90°.

6. The ejector head according to claim 5, wherein, The first channel includes a connecting section and a guide section which are arranged in sequence from the water inlet to the water outlet, the connecting section is connected to the water inlet, the guide section is connected to the first water outlet, and the inner wall of the guide section includes a guide wall, which is inclined toward the second water outlet from the water inlet to the water outlet, and the guide wall has the angle θ with the extension direction of the second channel.

7. The ejector head according to claim 6, characterized in that, The cross-sectional area of ​​the guide section is smaller than the cross-sectional area of ​​the connecting section.

8. The ejector head according to claim 6, characterized in that, The inner wall of the connecting section includes an extension wall and an inclined wall arranged opposite to each other, the extension wall is located on the side of the inclined wall away from the second channel, and the extension wall and the inclined wall extend to the guide section; wherein, in the direction from the water inlet to the water outlet, the inclined wall is inclined toward the direction of the extension wall to form a contraction structure whose cross-sectional area gradually decreases toward the guide section.

9. The ejector head according to claim 5, wherein, The first water outlet end and the second water outlet end are arranged at intervals from top to bottom, and along the direction from bottom to top, the lowest point of the edge of the first water outlet end is higher than the highest point of the edge of the second water outlet end.

10. The jet head according to claim 1, characterized in that, One end of the first channel facing the water inlet is the first water inlet end, and one end of the second channel facing the water inlet is the second water inlet end, wherein: the first water inlet end and the second water inlet end are arranged at intervals from top to bottom; and / or the cross-sectional area of ​​the first water inlet end is greater than the cross-sectional area of ​​the second water inlet end.

11. The ejector head according to any one of claims 1 to 10, characterized in that, The injection channel further includes a water inlet channel, which is located on the side of the first channel and the second channel facing the water inlet, one end of the water inlet channel passes through the main body to form the water inlet, and the other end of the water inlet channel is connected to the first channel and the second channel; And / or, the injection channel also includes a water outlet channel, which is located on the side of the first channel and the second channel facing the water outlet, one end of the water outlet channel passes through the end of the main body away from the water inlet to form the water outlet, and the other end connects the first channel and the second channel.

12. Flushing device, applied to a toilet, characterized in that include: The injection head according to any one of claims 1 to 11; A flushing assembly, used for connecting to a water source, the flushing assembly having a first flushing channel and a second flushing channel, wherein the second flushing channel is connected to the spray head; The flushing modes of the flushing assembly include: a first flushing mode in which the first flushing channel is connected and the second flushing channel is closed, a second flushing mode in which the second flushing channel is connected and the first flushing channel is closed, and a third flushing mode in which both the first flushing channel and the second flushing channel are connected; Wherein, the water pressure in the second flushing channel in the third flushing mode is lower than the water pressure in the second flushing mode.

13. The flushing device according to claim 12, characterized in that, The flushing device further includes a control module, which is signal-connected to the flushing component, and is configured to control the flushing component to run the first flushing mode, the second flushing mode, and the third flushing mode according to a set timing.

14. Toilet, characterized in that, include: The flushing device according to claim 12 or 13; A toilet body, the toilet body is provided with a toilet bowl, a sewage outlet located at the bottom of the toilet bowl, a jet port located at the bottom of the toilet bowl and above the sewage outlet, and an upper flushing outlet connected to the upper part of the toilet bowl; the flushing assembly is connected to the toilet body, the first flushing channel is connected to the upper flushing outlet, the jet head is connected to the jet port, and the water outlet of the jet head faces the sewage outlet.

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