Water inlet structure and closestool

Abstract

The water inlet structure comprises a spray gun, a pulsation buffer and at least two water inlet pipelines, the pulsation buffer is communicated with the water inlet end of the spray gun, and the at least two water inlet pipelines are communicated with the pulsation buffer and connected with different water sources. A user can select one of the multiple water inlet pipelines for water inflow or the multiple water inlet pipelines for water inflow at the same time according to needs, the function of the closestool is increased, when one water source or a network pipe connecting the water source and the water inlet pipelines breaks down, other water sources can be used for water supply, and then the closestool can continue to be used. Wherein the water inlet pipeline comprises a water pump and a pressure regulating valve, so that the water inlet structure can regulate the water pressure and flow of water supplied to the spray gun and can adapt to water sources with different water pressures, and the application range of the water pressure of the water sources is widened.

Description

Technical Field

[0001] The utility model relates to the field of bathroom equipment, mainly to a water inlet structure and a toilet. Background Art

[0002] In the field of smart bathroom, smart toilet products on the market that supply water to the cleaning system basically have a single water source and a single water inlet. During use, when the single water source or the single water inlet fails, the smart toilet cannot continue to be used. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a water inlet structure and a toilet to solve the problem that the existing smart toilet cannot continue to be used when a single water source or a single water inlet waterway fails.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A water inlet structure comprises a spray gun, a pulsation buffer and a water inlet pipeline, wherein the pulsation buffer is connected to the water inlet end of the spray gun; the water inlet pipeline comprises a water pump and a pressure regulating valve, the water inlet end of the water pump is connected to the water outlet end of the pressure regulating valve, and the water outlet end of the water pump is connected to the pulsation buffer, the water inlet end of the pressure regulating valve is used to be connected to a water source, the pressure regulating valve is used to regulate the pressure of the cleaning water flow entering from the water source, the water pump is used to suck the cleaning water flow passing through the pressure regulating valve and transport the cleaning water flow to the spray gun; wherein the water inlet pipeline is configured with at least two routes, and the water inlet ends of the pressure regulating valves of at least two of the water inlet pipelines are connected to different water sources.

[0006] In some schemes of the present application, the pulsation buffer includes a shell and an elastic diaphragm, the shell is provided with an inner cavity, a water inlet and a water outlet, the elastic diaphragm is arranged in the inner cavity, and the elastic diaphragm divides the inner cavity into a water passage chamber and an air pressure chamber, the water inlet and the water outlet are both connected to the water passage chamber; the water outlet is connected to the spray gun; the water inlet is connected to the water inlet pipeline.

[0007] In some schemes of the present application, the number of the water inlets is the same as the number of the water inlet pipelines, and the water inlet pipelines are connected to the water inlets in a one-to-one correspondence; or the number of the water inlets is less than the number of the water inlet pipelines, and at least one of the water inlets is connected to at least two of the water inlet pipelines.

[0008] In some schemes of the present application, the shell includes a first shell and a second shell, the first shell and the second shell are detachably connected, and the inner cavity is formed between the first shell and the second shell, and the water inlet and the water outlet are arranged on the first shell.

[0009] In some schemes of the present application, the first shell is provided with a first clamping portion, and the second shell is provided with a second clamping portion, the position of the second clamping portion corresponds to the position of the first clamping portion, and when the first shell and the second shell are fixed together, the first clamping portion and the second clamping portion clamp the elastic diaphragm.

[0010] In some schemes of the present application, the first clamping portion and the second clamping portion clamp the edge of the elastic diaphragm; the water inlet and the water outlet are both arranged on the side of the water passage cavity away from the elastic diaphragm, and the water inlet and the water outlet are toward the middle of the elastic diaphragm.

[0011] In some solutions of the present application, the water inlet pipeline further includes a check member, which can prevent water from flowing from the pulsation buffer to the pressure regulating valve.

[0012] In some solutions of the present application, the check member is a one-way valve or a control valve, and the check member is connected in series between the water pump and the pulsation buffer; or the water pump has a check function to form a check member.

[0013] In some embodiments of the present application, the water inlet structure further includes a heater, which is connected in series between the spray gun and the pulsation buffer and is used to heat the cleaning water flow flowing from the pulsation buffer to the spray gun.

[0014] A toilet comprises a ceramic body and a cover assembly; the cover assembly is installed on the top of the ceramic body, the cover assembly comprises a cover body and a water inlet structure, and the water inlet structure is arranged in the cover body.

[0015] Beneficial effects: The water inlet structure of the toilet of the present application includes a spray gun, a pulsation buffer and a water inlet pipeline. The pulsation buffer is connected to the water inlet end of the spray gun. The water inlet pipeline is configured with at least two channels. At least two water inlet pipelines are connected to the pulsation buffer, and at least two water inlet pipelines are connected to different water sources. Users can choose one of the multiple water inlet pipelines to inlet water according to their needs, or multiple water inlet pipelines can inlet water at the same time, which increases the function of the toilet. When one of the water sources or the network pipe connecting the water source and the water inlet pipeline fails, other water sources can be used to supply water, so that the toilet can continue to be used. Among them, the water inlet pipeline includes a water pump and a pressure regulating valve, so that the water inlet structure can adjust the water pressure and flow of the water supplied to the spray gun, and can adapt to water sources with different water pressures, thereby increasing the applicable range of water source water pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a water inlet structure in one embodiment.

[0017] Figure 2 Schematic diagram of the structure of a pulsation buffer in one embodiment.

[0018] Figure 3 yes Figure 2 The structure of the pulsation buffer shown is a schematic diagram from another perspective.

[0019] Figure 4 yes Figure 3 The pulsation damper is shown in a schematic cross-sectional view along the AA direction, with the screws removed.

[0020] Figure 5 It is a schematic diagram of the structure of a pressure regulating valve in an embodiment, and the arrow indicates the direction of water flow.

[0021] Figure 6 It is a structural schematic diagram of a water inlet structure in another embodiment.

[0022] Explanation of the main component symbols: 1-spray gun; 2-pulsation buffer; 21-shell; 211-first shell; 212-second shell; 2111-water inlet; 2112-water outlet; 22-elastic diaphragm; 23-water chamber; 24-air pressure chamber; 2113-first clamping part; 2114-first screw hole; 2121-second clamping part; 2122-second screw hole; 3-water inlet pipeline; 31-water pump; 32-pressure regulating valve; 321-valve body; 3211-water passage; 322-valve core; 323-elastic part; 33-check member; 4-heater; 5-driving mechanism; 6-screw. DETAILED DESCRIPTION

[0023] The utility model provides a water inlet structure and a toilet. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the protection scope of the utility model.

[0024] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 present invention.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] A toilet comprises a ceramic body and a cover assembly. The ceramic body is the main structure of the toilet and is provided with a cavity. The cover assembly comprises a cover body and a water inlet structure. The water inlet structure is arranged in the cover body and the cover body is installed on the top of the ceramic body.

[0027] See also Figure 1 The water inlet structure includes a spray gun 1, a pulsation buffer 2 and a water inlet pipeline 3. The water inlet pipeline 3, the pulsation buffer 2 and the spray gun 1 are connected in sequence, and the end of the water inlet pipeline 3 away from the pulsation buffer 2 is connected to a water source, so that water from the water source passes through the water inlet pipeline 3 and the pulsation buffer 2 and is sprayed from the spray gun 1 to the user's buttocks to clean the user's buttocks, thereby realizing the cleaning function of the toilet.

[0028] The spray gun 1 is provided with a driving mechanism 5, which is fixed on the cover body, and the output end of the driving mechanism 5 is fixedly connected to the spray gun 1, so that the driving mechanism 5 can drive the spray gun 1 to move to adjust the position of the nozzle of the spray gun 1. The movement of the spray gun 1 driven by the driving mechanism 5 includes at least one of telescopic movement, horizontal movement and rotational movement. For example: the driving mechanism 5 is a motor, and the output shaft of the motor is arranged horizontally. Therefore, when the motor is working, it can drive the spray gun 1 to swing, and then adjust the direction of the nozzle of the spray gun 1. For example: the driving mechanism 5 is an electric telescopic cylinder. When the electric telescopic cylinder is working, it can drive the spray gun 1 to extend or retract, so as to adjust the nozzle of the spray gun 1.

[0029] Specifically, the pulsation buffer 2 is connected to the water inlet end of the spray gun 1 to slow down the fluctuation of the water pressure entering the spray gun 1. The water inlet pipeline 3 is configured with at least two channels, at least two water inlet pipelines 3 are connected to the pulsation buffer 2, and at least two water inlet pipelines 3 are connected to different water sources. Users can choose to use one of the multiple water inlet pipelines 3 according to their needs. For example, the water sources respectively connected to the multiple water inlet pipelines 3 can be tap water, purified water, traditional Chinese medicine liquid, disinfectant water, etc., and corresponding selections are made according to different user needs. Moreover, the toilet has multiple water inlets. When one of the water sources or the network pipe connecting the water source and the water inlet pipeline 3 fails, other water sources can be used to supply water, so that the toilet can continue to be used. For example: when the tap water source fails, the water source that provides purified water can be used for water inlet.

[0030] In some embodiments, multiple water inlet pipes 3 can simultaneously inlet water, so that the toilet has more functions, and multiple means at least two. For example, one water inlet pipe 3 is connected to a tap water source or purified water, and another water inlet pipe 3 is connected to disinfectant water, etc. When multiple water inlet pipes 3 can simultaneously inlet water, the traditional Chinese medicine liquid or disinfectant water can be diluted.

[0031] In the above, the water inlet pipeline 3 includes a water pump 31 and a pressure regulating valve 32. The water inlet end of the water pump 31 is connected to the water outlet end of the pressure regulating valve 32, and the water outlet end of the water pump 31 is connected to the pulsation buffer 2, and the water inlet end of the pressure regulating valve 32 is connected to the water source. The pressure regulating valve 32 is used to regulate the pressure of the cleaning water flow entering from the water source, that is, the pressure regulating valve 32 can adjust the water entering the pressure regulating valve 32 to normal pressure or negative pressure, and the water pump 31 is used to suck the cleaning water flow through the pressure regulating valve 32 and deliver the cleaning water flow to the spray gun 1.

[0032] When in use, the water pump 31 works, so that a negative pressure is formed at the outlet of the pressure regulating valve 32, and then the pressure regulating valve 32 is opened, and the water source can pass through the pressure regulating valve 32, the water pump 31 and the pulsation buffer 2 in sequence and be sprayed out from the spray gun 1. Preferably, the rotation speed of the water pump 31 can be controlled so that the water pressure entering the pulsation buffer 2 can be adjusted. In other words, no matter whether the water pressure of the water source is high pressure, low pressure or negative pressure, the water pressure supplied to the spray gun is adjusted by regulating the pressure of the pressure regulating valve 32 and controlling the rotation speed of the water pump 31, so that the toilet can adapt to water sources with different water pressures. High pressure and low pressure are only relative concepts, and their values ​​are not specifically limited. While adjusting the water pressure of the water supplied to the spray gun 1, the water pump 1 also adjusts the flow rate of the water supplied to the spray gun 1, that is, when the water pressure supplied to the spray gun 1 increases, the flow rate of the water passing through the spray gun 1 is faster, thereby adjusting the flow rate of the water supplied to the spray gun 1.

[0033] Among them, see Figure 1 and Figure 5The pressure regulating valve 32 includes a valve body 321, a valve core 322 and an elastic member 323. The valve body 321 is provided with a water passage 3211. The valve core 322 and the elastic member 323 are both installed inside the valve body 321. The valve core 322 can control the on and off of the water passage 3211. The elastic member 323 can push the valve core 322 to close the water passage 3211, that is, the pressure regulating valve 32 is a normally closed pressure regulating valve. When the water pump 31 is working, a negative pressure is formed at the outlet of the water passage 3211 to push the valve core 322 to move, thereby opening the water passage 3211 and achieving water inlet. The outlet of the water passage 3211 refers to the channel between the valve core 322 and the water pump 31. When the water pump 31 is not working, there is no negative pressure at the water outlet of the water passage 3211 or the negative pressure is less than the elastic force of the elastic member 323, and the valve core 322 closes the water passage under the push of the elastic member 323, so that water cannot pass through the water passage 3211 in reverse. Among them, the water pressure flowing through the water inlet pipeline 3 is controlled by the suction control of the water pump 31, and the switch and power size of the water pump 31 can be controlled by the circuit. In this embodiment, the structure of the combination of the water pump 31 and the pressure regulating valve 32 can not only adapt to water sources with different water pressures, but also adjust the supply to the spray gun according to the power of the water pump 31. Therefore, the water inlet structure of the present application is highly adaptable to the water pressure of the water source supply, and normal pressure, high pressure and negative pressure can be used.

[0034] The elastic member 323 may be a compression spring or a colloid with elasticity.

[0035] The pulsation buffer 2 is connected between the multi-way water inlet pipeline 3 and the spray gun 1, and can stabilize the water pressure entering the spray gun 1 from the multi-way water inlet pipeline 3, so that no matter which water inlet pipeline 3 is selected for water inlet, the pulsation buffer 2 can stabilize the water pressure sprayed from the spray gun 1, thereby improving the experience effect. Specifically, when the water pump 31 is working, there are pulses in the water pressure boosted by the water pump 31. By setting the pulsation buffer 2 between the water pump 31 and the spray gun 1, the pulsation buffer 2 eliminates the pulse of the water flow, thereby making the pressure of the water flow more stable. When opening or closing a water inlet pipeline, it will also cause water pressure fluctuations. The pulsation buffer 2 can automatically absorb or supplement part of the water pressure, thereby making the water flow more stable.

[0036] See also Figure 2-Figure 4Specifically, the pulsation buffer 2 includes a shell 21 and an elastic diaphragm 22. The shell 21 is provided with an inner cavity, a water inlet 2111 and a water outlet 2112. The elastic diaphragm 22 is arranged in the inner cavity, and the elastic diaphragm 22 divides the inner cavity into a water passage cavity 23 and an air pressure cavity 24. The water inlet 2111 and the water outlet 2112 are both connected to the water passage cavity 23, and the water outlet 2112 is connected to the spray gun 1, and the water inlet 2111 is connected to the water inlet pipeline 3. When in use, gas is stored in the air pressure cavity 24, and water from the water source enters the water passage cavity 23 through the water inlet pipeline 3 and the water inlet 2111, and then flows to the spray gun 1 from the water outlet 2112. When the water flows through the water cavity 23, the water pushes the elastic diaphragm 22 to undergo elastic deformation to compress the gas in the air pressure cavity 24, thereby automatically adjusting the fluctuation of the water pressure and making the water pressure more stable. That is to say, when water flows through the water cavity 23, the gas in the air pressure cavity 24 can automatically absorb or supplement part of the water pressure, making the water pressure more stable.

[0037] exist Figure 4 In the pulsation buffer 2 shown, the air pressure chamber 24 is a closed structure, so that gas can be stored in the air pressure chamber 24. In other embodiments, the air pressure chamber 24 is connected to an air supply source, and the air supply source provides a stable air pressure.

[0038] In one embodiment, the number of the water inlets 2111 is the same as the number of the water inlet pipelines 3, and the water inlet pipelines 3 are connected to the water inlets 2111 in a one-to-one correspondence. Figure 1 As shown, the water inlet pipeline 3 is configured with two routes, and the water inlet 2111 is configured with two routes. The first water inlet pipeline 3 is connected to one of the water inlets 2111, and the second water inlet pipeline 3 is connected to the other water inlet 2111, so as to realize the connection between the two water inlet pipelines 3 and the pulsation buffer 2. The number of water inlets 2111 can also be configured to be 3, 4 or more as needed.

[0039] See also Figure 4 Preferably, the water outlet 2112 is arranged near the middle of the elastic diaphragm 22, and the plurality of water inlets 2111 are distributed in a ring shape on the outside of the water outlet 2112, so that the distance between each water inlet 2111 and the water outlet 2112 is close, and the structure is more compact. Since the edge of the elastic diaphragm 22 is used for fixing, the elastic deformation ability of the middle part of the elastic diaphragm 22 is the strongest, and the water inlet 2111 and the water outlet 2112 are distributed near the middle of the elastic diaphragm 22, so that the pulsation buffer 2 has a better effect on stabilizing the water pressure.

[0040] In one embodiment, the number of water inlets 2111 is less than the number of water inlet pipelines 3, and at least one water inlet 2111 is connected to at least two water inlet pipelines 3. For example, a header is connected to the water inlet 2111, and multiple water inlet pipelines 3 are connected to the water inlet 2111, so that the water inlet pipelines 3 pass through the header and enter the water passage cavity 23. In other embodiments, one of the water inlet pipelines 3 is connected to the water inlet 2111, and the remaining water inlet pipelines 3 are connected to the water inlet pipeline 3 connected to the water inlet 2111, and are located at one end close to the water inlet 2111, so that multiple water inlet pipelines 3 are connected together.

[0041] See also Figure 4 In one embodiment, the water inlet 2111 and the water outlet 2112 are both arranged on the side of the water passage chamber 23 away from the elastic diaphragm 22, and the water inlet 2111 and the water outlet 2112 are toward the middle of the elastic diaphragm 22, so that the pulsation buffer 2 has a better effect on stabilizing the water pressure.

[0042] The shell 21 includes a first shell 211 and a second shell 212 . The first shell 211 and the second shell 212 are detachably connected, and an inner cavity is formed between the first shell 211 and the second shell 212 . The water inlet 2111 and the water outlet 2112 are arranged on the first shell 211 .

[0043] In one embodiment, the first shell 211 is provided with a first clamping portion 2113, and the second shell 212 is provided with a second clamping portion 2121. The position of the second clamping portion 2121 corresponds to the position of the first clamping portion 2113. When the first shell 211 and the second shell 212 are fixed together, the first clamping portion 2113 and the second clamping portion 2121 clamp the edge of the elastic diaphragm 22, so that when the first shell 211 and the second shell 212 are fixed, the elastic diaphragm 22 can be fixed at the same time.

[0044] exist Figure 1 In the pulsation buffer 2 shown, a first cavity is provided on the first shell 211, and a first clamping part 2113 is arranged in the first cavity. The first clamping part 2113 is annular and is formed integrally with the first shell 211; a second clamping part 2121 is convexly provided on the second shell 212, and the second clamping part 2121 is annular and is formed integrally with the second shell 212, so that a second cavity is formed inside the second clamping part 2121. When the second shell 212 is installed together with the first shell 211, the second clamping part 2121 extends into the first cavity, thereby realizing that the first clamping part 2113 and the second clamping part 2121 clamp the edge of the elastic diaphragm 22. Moreover, when the second shell 212 is installed together with the first shell 211, the second cavity forms an air pressure cavity 24. The part of the first cavity located inside the first clamping part 2113 forms a water passage cavity 23.

[0045] In other embodiments, the elastic diaphragm 22 is fixed on one of the first shell 211 and the second shell 212 , and divides the inner cavity into a water chamber 23 and an air pressure chamber 24 .

[0046] The first shell 211 is provided with a first screw hole 2114 on the outside of the first cavity, and the second shell 212 is provided with a second screw hole 2122 on the outside of the second cavity. The screw 6 passes through the first screw hole 2114 and the second screw hole 2122 to fix the second shell 212 and the first shell 211 together. Figure 3 In the embodiment shown, three screws 6 are provided, and the three screws 6 are evenly distributed in a ring shape. In other embodiments, the number of screws 6 is not limited.

[0047] A sealing ring is sleeved on the circumferential outer surface of the second clamping portion 2121, and the sealing ring abuts against the inner wall surface of the first cavity to achieve a sealed connection between the first shell 211 and the second shell 212, thereby preventing gas leakage from affecting the effect of the pulsation buffer 2 in regulating water pressure.

[0048] exist Figure 4 In the embodiment shown, the gas stored in the air pressure chamber 24 is air. When assembling the pulsation buffer 2, the elastic diaphragm 22 is first installed in the first cavity of the first shell 211, and the edge of the elastic diaphragm 22 is located on the side of the first clamping portion 2113 away from the water inlet 2111, and then the second shell 212 is covered on the first shell 211. At this time, the second clamping portion 2121 on the second shell 212 abuts against the edge of the elastic diaphragm 22 away from the first clamping portion 2113. After tightening the screw 6, the first clamping portion 2113 and the second clamping portion 2121 clamp the edge of the elastic diaphragm 22, so that the air pressure chamber 24 forms a closed cavity, and air is stored in the air pressure chamber 24. In this embodiment, there is no need to fill the air pressure chamber 24 with gas, which is convenient for production. In other embodiments, the air in the air pressure chamber 24 can also be replaced with other gases.

[0049] Preferably, at least one convex tooth is provided on the first clamping portion 2113 or the second clamping portion 2121, which protrudes toward the side close to the elastic diaphragm 22, is annular and contacts the elastic diaphragm 22, and the contact area between the convex tooth and the elastic diaphragm 22 is small, so that when the first clamping portion 2113 and the second clamping portion 2121 clamp the elastic diaphragm 22, the elastic diaphragm 22 deforms greatly at the convex tooth, thereby being able to clamp the elastic diaphragm 22 tighter and also improving the air tightness between the air pressure chamber 24 and the water passage chamber 23.

[0050] The volume of the air pressure chamber 24 is set to be larger than the volume of the water chamber 23, so that when water pushes the elastic diaphragm 22 to elastically deform, the elastic diaphragm 22 has a larger elastic deformation space, thereby achieving a better water pressure stabilization effect.

[0051] See also Figure 1 and Figure 6 The water inlet pipeline includes a check member 33, which can prevent the water in the pulsation buffer 2 from flowing back to the pressure regulating valve 32, thereby preventing the water from flowing back to the water source and contaminating the water source. In particular, when water is flowing into one of the water inlet pipelines 3, water will not flow from other water inlet pipelines 3 to other water sources, so that no matter which water inlet pipeline 3 is selected for water inlet, the cleaning water flow can flow to the spray gun 1.

[0052] In one embodiment, each water inlet pipeline 3 includes a water pump 31, a pressure regulating valve 32 and a check member 33, so that each water inlet pipeline 3 can adapt to different water source pressures and can control the water pressure entering the spray gun 1 to improve the physical examination effect.

[0053] In one embodiment, see Figure 1 The non-return member 33 is a water pump 31 with a non-return function, that is, the water pump 31 has a non-return function to prevent the water in the pulsation buffer 2 from flowing back to the pressure regulating valve 32. When the water pump 31 is in a working state, it can increase the pressure of the water in the water inlet pipeline 3 and drive the water to flow to the spray gun 1; when the water pump 31 is in a non-working state, under the action of the non-return function of the water pump 31, the water from the water source cannot pass through the position of the water pump 31, and the water in the pulsation buffer 2 cannot reversely pass through the water pump 31, so as to avoid that when one of the water inlet pipelines 3 is filled with water, the water reversely flows to other water inlet pipelines 3. The switch and power size of the water pump 31 can be controlled by the circuit.

[0054] In one embodiment, see Figure 6 The check member 33 is a one-way valve or a control valve, and the check member 33 is connected in series between the water pump 31 and the pulsation buffer 2. The water pump 31 in this embodiment may have a check function or may not have a check function.

[0055] In an embodiment where the check member 33 is a one-way valve, when the water pump 31 is in working condition, the water flow pressurized by the water pump 31 can automatically open the one-way valve, thereby allowing water to flow to the pulsation buffer 2; when the water pump 31 is in non-working condition, the one-way valve can automatically close to prevent the water in the pulsation buffer 2 from flowing to the water pump 31.

[0056] In the embodiment where the check valve 33 is a control valve, when the water pump 31 is in operation, the control valve is in an open state, thereby allowing water to flow to the pulsation buffer 2; when the water pump 31 is in a non-operating state, the control valve is closed to prevent the water in the pulsation buffer 2 from flowing to the water pump 31. The opening and closing of the control valve can be electrically controlled, pneumatically controlled, or electromagnetically controlled, thereby achieving automatic control of water inlet.

[0057] In the above description, the pressure regulating valve 32, the water pump 31, the check member 33 and the pulsation buffer 2 may be connected via a pipeline or directly connected in series.

[0058] The pulsation buffer 2 is connected to the spray gun 1 through a pipeline, and the pipeline between the pulsation buffer 2 and the spray gun 1 is preferably a hose, so that the position of the water outlet of the spray gun 1 is convenient to adjust, and there is no space restriction when arranging the pipeline.

[0059] In one embodiment, the water inlet structure also includes a heater 4, which is connected in series between the spray gun 1 and the pulsation buffer 2, and is used to heat the cleaning water flow flowing from the pulsation buffer 2 to the spray gun 1, thereby continuously providing warm water to the spray gun 1 to improve the comfort of cleaning.

[0060] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.

Claims

1. A water inlet structure, characterized in that: include: spray gun; A pulsation buffer connected to the water inlet end of the spray gun; A water inlet pipeline includes a water pump and a pressure regulating valve, the water inlet end of the water pump is connected to the water outlet end of the pressure regulating valve, and the water outlet end of the water pump is connected to the pulsation buffer, the water inlet end of the pressure regulating valve is used to be connected to a water source, the pressure regulating valve is used to regulate the pressure of the cleaning water flow entering from the water source, the water pump is used to suck the cleaning water flow through the pressure regulating valve and transport the cleaning water flow to the spray gun; the water inlet pipeline is configured with at least two routes, and the water inlet ends of the pressure regulating valves of at least two of the water inlet pipelines are connected to different water sources.

2. The water inlet structure according to claim 1, characterized in that: The pulsation buffer comprises a shell and an elastic diaphragm, the shell is provided with an inner cavity, a water inlet and a water outlet, the elastic diaphragm is arranged in the inner cavity, and the elastic diaphragm divides the inner cavity into a water passage cavity and an air pressure cavity, and the water inlet and the water outlet are both connected to the water passage cavity; The water outlet is communicated with the spray gun; the water inlet is communicated with the water inlet pipeline.

3. The water inlet structure according to claim 2, characterized in that: The number of the water inlets is the same as the number of the water inlet pipelines, and the water inlet pipelines are connected to the water inlets in a one-to-one correspondence; or The number of the water inlets is less than the number of the water inlet pipelines, and at least one of the water inlets is connected to at least two of the water inlet pipelines.

4. The water inlet structure according to claim 2, characterized in that: The shell comprises a first shell and a second shell, the first shell is detachably connected to the second shell, and the inner cavity is formed between the first shell and the second shell, and the water inlet and the water outlet are arranged on the first shell.

5. The water inlet structure according to claim 4, characterized in that: The first shell is provided with a first clamping portion, and the second shell is provided with a second clamping portion. The position of the second clamping portion corresponds to the position of the first clamping portion. When the first shell and the second shell are fixed together, the first clamping portion and the second clamping portion clamp the elastic diaphragm.

6. The water inlet structure according to claim 5, characterized in that: The first clamping portion and the second clamping portion clamp the edge of the elastic diaphragm; The water inlet and the water outlet are both arranged on a side of the water passage cavity away from the elastic diaphragm, and the water inlet and the water outlet are oriented toward the middle of the elastic diaphragm.

7. The water inlet structure according to claim 1, characterized in that: The water inlet pipeline also includes a check member, which can prevent water from flowing from the pulsation buffer to the pressure regulating valve.

8. The water inlet structure according to claim 7, characterized in that: The check member is a one-way valve or a control valve, and the check member is connected in series between the water pump and the pulsation buffer; or The water pump has a non-return function to form a non-return member.

9. The water inlet structure according to claim 1, characterized in that: The water inlet structure also includes a heater, which is connected in series between the spray gun and the pulsation buffer and is used to heat the cleaning water flow flowing from the pulsation buffer to the spray gun.

10. A toilet, characterized in that: include: Ceramic body; A cover plate assembly is installed on the top of the ceramic body, and the cover plate assembly includes a cover body and a water inlet structure as described in any one of claims 1-9, and the water inlet structure is arranged in the cover body.

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