A switching valve for waterway control of an electric toilet, an electric toilet

Abstract

The application provides a switching valve for waterway control of an electric toilet bowl, comprising a valve body, a valve cover, a valve core, a sealing element and a valve rod. In the axial projection view of the valve body, the second water outlet and the third water outlet are located on the same side of the center line X, and the intersection angle between the second water outlet axis and the third water outlet axis is an acute angle Q1, and the first water outlet is located on the other side of the center line X. In the axial projection view of the valve core, the first through hole, the second through hole axis and the third through hole are located on the same side of the center line X, and the intersection angle between the second through hole axis and the third through hole axis is also an acute angle Q1. Through the arrangement of the valve body water outlet and the through hole of the valve core, the switching valve only needs one power source to realize the functions of the first, second and third waterways being separately connected and the functions of the second and third waterways being simultaneously connected. The application also provides an electric toilet bowl applying the switching valve.

Description

TECHNICAL FIELD

[0001] The present application relates to a switching valve for waterway control of an electric toilet, which can be classified as a diverter valve in terms of use and function, and an electric toilet using the same, IPC classification F16K 11 / 085, F16K 17 / 30, E03D 5 / 01, E03D 5 / 00. BACKGROUND

[0002] An electric toilet generally has a waterway for washing a human body part and a waterway for flushing a bowl. The bowl flushing waterway generally has two routes: one water outlet is connected to the rim flushing side (also called the brush circle side), and the other water outlet is connected to the siphon flushing side (also called the bottom flushing side), and usually the rim side connection pipe outlet is located below the seat ring in the bowl, and the jet side connection pipe outlet is located lower in the bowl water storage part. To meet the above functional needs, multiple electromagnetic devices are generally provided to drive the on-off of these waterways, so that the control electrical devices are more, the overall structure is complex, the cost is high, and the need for better control of the waterway cannot be met. See patent documents CN116146748A and CN210032003U.

[0003] For commonly known knowledge and terms, see Valve Manual: Selection (Chemical Industry Press 2013 1st edition), Mechanical Engineering Manual and Electrical Engineering Manual (Mechanical Industry Press 1978 1st edition and 1997 2nd edition), and national standards GB / T21465-2008 Valve Terms, GB / T 23131-2019 Household and Similar Use Electric Toilet Bowl, and GB / T34549-2017 Intelligent Toilet Bowl for Sanitary Wares, except as indicated in this specification. SUMMARY

[0004] The purpose of the present application is to provide a switching valve for waterway control of an electric toilet and the electric toilet.

[0005] In order to achieve the above-mentioned purpose of the application, the following technical solutions are adopted: a switching valve for waterway control of an electric toilet, comprising:

[0006] A valve body, the main body of the valve body is a hollow cylindrical body, one end of which is open, and the other end has a central bottom wall with an embedded hole, and three water outlets are provided on the outer peripheral wall of the cylindrical body, which are a first water outlet, a second water outlet and a third water outlet;

[0007] A valve cover, covering the opening of the valve body to form a valve chamber, the valve cover is provided with a water inlet communicating with the valve chamber;

[0008] A valve core, an outer peripheral surface of the valve core is a spherical surface, the valve core is rotatably arranged in the valve chamber along a rotation axis O, the valve core is provided with a longitudinal through hole penetrating the valve core in an axial direction, and the spherical surface of the valve core is provided with a first through hole, a second through hole and a third through hole communicating with the longitudinal through hole;

[0009] A sealing member is arranged between the valve core and the water outlet, a surface of the sealing member facing the valve core is a spherical surface, and an elastic sealing ring is arranged between the sealing member and the valve body to push and fit the sealing member to the valve core;

[0010] A valve rod is inserted into the longitudinal through hole at one end and penetrates the embedded hole to connect with a power member in a water-tight manner at the other end, and drives the valve core to rotate around the rotation axis O.

[0011] In an axial projection view of the valve body, the second water outlet and the third water outlet are located on the same side of the center line X, and the intersection angle between the second water outlet axis and the third water outlet axis is an acute angle Q1, and the first water outlet is located on the other side of the center line X; in an axial projection view of the valve core, the first through hole axis, the second through hole axis and the third through hole are located on the same side of the center line X, and the intersection angle between the second through hole axis and the third through hole axis is also an acute angle Q1; the rotation of the valve core selectively connects the internal water passage of the valve core with the first water outlet, the second water outlet and the third water outlet respectively, or simultaneously connects the internal water passage of the valve core with the second water outlet and the third water outlet, or does not connect the internal water passage of the valve core with the first water outlet, the second water outlet and the third water outlet.

[0012] The arrangement of the water outlets of the valve body and the through holes of the valve core makes the switching valve only need one rotation drive to realize the respective conduction of the first, second and third water passages or the simultaneous conduction of the second and third water passages, that is, the electric toilet using the switching valve has the function of separately conducting the water passage for washing the local human body and the upper and lower water passages for flushing the toilet dirt or simultaneously conducting the upper and lower water passages for flushing the toilet dirt.

[0013] Further, the inner cavity of the valve body is extended downward along the axial direction in the region adjacent to the three water outlets to form one valve body limiting rib, and the bottom end of the valve body limiting rib is an arc surface coaxial with the water outlet; the valve cover is provided with one valve cover limiting rib at the end surface facing the valve body corresponding to the bottom end of the valve body limiting rib, and the top end of the valve cover limiting rib is an arc surface same as the corresponding valve body limiting rib; after the valve cover is combined with the valve body, the valve cover limiting rib and the valve body limiting rib limit the sealing member between the valve core and the water outlets. This structure limits the sealing member when the valve cover is combined with the valve body, and is simple and reliable.

[0014] Further, the water inlet of the valve cover leads to a hollow cylindrical body, one end of which is open, and the other end has a water inlet pipe in the center of the bottom wall extending axially to both ends and not connected to the water inlet, the open end of the hollow cylindrical body is water-tightly connected with a vacuum breaker cover, the vacuum breaker cover, the inner circumferential surface of the hollow cylindrical body and the outer circumferential surface of the water inlet pipe together form a water inlet cavity, the vacuum breaker cover has a gas guide pipe connected to the water inlet cavity, an elastic gasket is arranged between the vacuum breaker cover and the water inlet pipe, and the elastic gasket is used to connect or disconnect the passage between the water inlet cavity and the gas guide pipe.

[0015] By providing a vacuum breaking structure at the common water inlet end, the switching valve can avoid sucking sewage when the water inlet pipe is under negative pressure.

[0016] Further, a pressure reducing valve is further included, and the water inlet channel of the pressure reducing valve is connected with the first water outlet pipe. In this way, the water flow after pressure reduction and stabilization is led to the cleaning assembly for cleaning the local body part through the pressure reducing valve, thereby improving the user comfort.

[0017] In addition, the present application also provides an electric toilet, which comprises a main machine provided with a cleaning assembly for cleaning the local body part, a toilet bowl supporting the main machine, a water spraying opening for flushing human excrement arranged in the toilet bowl, and the electric toilet water control switching valve described above, wherein the first water outlet of the electric toilet water control switching valve is connected to the cleaning assembly for cleaning the local body part, and the second water outlet and the third water outlet are connected to the toilet bowl water spraying opening for flushing human excrement. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the electric toilet water control switching valve of the present application.

[0019] Figure 2 is a partial sectional view of the electric toilet water control switching valve of the present application.

[0020] Figure 3 is Figure 2 is an enlarged view of part A.

[0021] Figure 4 is a structural schematic view of the valve body of the electric toilet water control switching valve of the present application.

[0022] Figure 5 is a radial sectional view of the valve body of the electric toilet water control switching valve of the present application.

[0023] Figure 6 is a structural schematic view of the valve cover of the electric toilet water control switching valve of the present application.

[0024] Figure 7 is an axial sectional view of the valve cover of the electric toilet water control switching valve of the present application.

[0025] Figure 8Fig. 7 is an axial sectional view of a gas passage axis of a switching valve for waterway control of an electric toilet according to the present invention.

[0026] Figure 9 Fig. 8 is a structural schematic view of a valve core of a switching valve for waterway control of an electric toilet according to the present invention.

[0027] Figure 10 Fig. 9 is a radial sectional view of a valve core of a switching valve for waterway control of an electric toilet according to the present invention.

[0028] Figure 11 Fig. 10 is an axial sectional view of a valve stem of a switching valve for waterway control of an electric toilet according to the present invention.

[0029] Figure 12 Fig. 11 is a structural schematic view of a seal of a switching valve for waterway control of an electric toilet according to the present invention.

[0030] Figure 13 Fig. 12 is an axial sectional view of a seal of a switching valve for waterway control of an electric toilet according to the present invention.

[0031] Figure 14 Fig. 13 is a schematic view of a cutoff state mode of a switching valve for waterway control of an electric toilet according to the present invention.

[0032] Figure 15 Fig. 14 is a schematic view of a first communication mode of a switching valve for waterway control of an electric toilet according to the present invention.

[0033] Figure 16 Fig. 15 is a schematic view of a second communication mode of a switching valve for waterway control of an electric toilet according to the present invention.

[0034] Figure 17 Fig. 16 is a schematic view of a third communication mode of a switching valve for waterway control of an electric toilet according to the present invention.

[0035] Figure 18 Fig. 17 is a schematic view of a fourth communication mode of a switching valve for waterway control of an electric toilet according to the present invention.

[0036] Figure 19 Fig. 18 is a structural schematic view of a switching valve for waterway control of an electric toilet according to the present invention connected to a pressure reducing valve.

[0037] Figure 20 Fig. 19 is a structural schematic view of an electric toilet according to the present invention.

[0038] Reference numerals:

[0039] Valve stem 1, lower engaging portion 11, middle main body 12, upper connecting portion 13, lower concave portion 14, seal 2, curved surface 21, annular groove 22, elastic sealing ring 3, elastic gasket 4, vacuum breaker cover 5, air guide pipe 51, motor 6, valve body 10, first water outlet 101, second water outlet 102, third water outlet 103, embedded hole 104, valve body limiting rib 105, first water outlet pipe 106, second water outlet pipe 107, third water outlet Tube 108, valve chamber 1030, valve core 20, first conduction hole 201, second conduction hole 202, third conduction hole 203, longitudinal through hole 204, flow path 205, valve cover 30, water inlet 301, columnar body 302, water inlet pipe 303, water inlet cavity 304, valve cover limiting rib 305, pressure reducing valve 40, electric toilet 50, cleaning assembly 501, toilet bowl 502, first water spray outlet 5021, electric toilet water path control switching valve 100. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] As shown in the accompanying drawings, identical or similar reference numerals throughout represent identical or similar elements or elements having identical or similar functions. When describing the apparatus, system, device, and structure of the present invention, the direction toward which the valve core drive element is located is referred to as "upper" or "upper side," and the direction opposite thereto is referred to as "lower" or "lower side." The direction proximate the valve core's rotational axis is referred to as "inward" or "inner side," and the direction opposite thereto is referred to as "outward" or "outer side." The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention, and are not to be construed as limiting the present invention.

[0042] The electric toilet water circuit control switching valve 100 of the present invention switches the flowing fluid in the electric toilet to different flow paths for use, such as Figures 1-3 As shown, it includes: a cylindrical valve body 10 that is hollow and open at one end, a valve cover 30 covering the open end of the valve body 10, the valve body 10 and the valve cover 30 enclosing a valve chamber 1030, a spherical valve core (also called a ball valve core) 20 that is freely rotatable in the valve chamber 1030; a valve stem 1 connected to the valve core 20 at one end to rotate the valve core 20 around a rotation axis (center line) O, and the other end of the valve stem 1 is connected to a power part, such as a reducer or motor driven by an electric motor. The valve stem 1 of this embodiment is directly connected to the motor 6. The rotation axis (axis extending in the vertical direction) O of the valve core 20 accommodated in the valve chamber 1030 is coaxial with the center line of the valve stem 1.

[0043] See Figure 4、 Figure 5 The valve body 10 is made of synthetic resin or metal, and its main body is a hollow columnar body. One end of the columnar body is open in the axial direction (the vertical direction along the center line of the valve stem is the axial direction), and the center of the wall of the other end is provided with an inserting hole 104 for the valve stem to pass through. In addition, three water outlets are provided on the outer peripheral wall of the columnar body to communicate with the inner cavity of the columnar body, namely the first water outlet 101, the second water outlet 102 and the third water outlet 103. Their positions are as shown in FIG. Figure 6 As shown in the axial projection, the center line of the insertion hole 104, which is symmetrical to the second water outlet 102 and the third water outlet 103, is set as Y, and the line perpendicular to the center line Y is set as the center line X. Then, the second water outlet 102 and the third water outlet 103 are located on the same side of the center line X, and the angle between the axis of the second water outlet 102 and the axis of the third water outlet 103 is an acute angle Q, while the first water outlet 101 is located on the other side of the center line X. Water outlet pipes composed of pipe joints are integrally connected to the outer periphery of the above-mentioned columnar body so as to communicate with the water outlets 101, 102, and 103. They are respectively a first water outlet pipe 106, a second water outlet pipe 107, and a third water outlet pipe 108. In addition, the aforementioned insertion hole 104 is provided at the center of the top of the columnar body for the valve stem 1 connected to the valve core 20 to pass through. The outer edge of the insertion hole 104 protrudes axially downward and upward to form an annular rib. An elastic sealing ring is provided between the valve stem 1 and the inner wall of the rib to seal the valve chamber 1030. Furthermore, the top wall of the inner cavity of the valve body 10 protrudes axially downward in the area adjacent to the three water outlets to form three valve body limiting ribs 105. The bottom ends of these three valve body limiting ribs 105 are respectively provided with arc-shaped concave surfaces coaxial with each water outlet.

[0044] like Figure 2 As shown, a valve cover 30 is inserted and fixed to the open end of the valve body 10 by ultrasonic welding, screw fixing, snap connection, etc. (in the illustrated example, ultrasonic welding is used), and the valve cover 30 and the valve body 10 enclose a valve chamber 1030.

[0045] See Figure 6 、 Figure 7The valve cover 30 is provided with a water inlet 301 communicating with the valve chamber 1030. After the valve cover 30 is assembled with the valve body, the axis of the water inlet 301 is parallel to the rotation axis O of the valve core 20 and perpendicular to the axes of the water outlets. The valve cover 30 is provided with valve cover limiting ribs 305 corresponding to the bottom ends of the limiting ribs 105 of the valve body at the end face facing the valve body. The top ends of the valve cover limiting ribs 305 are provided with arc-shaped concave surfaces like the bottom ends of the limiting ribs 105 of the valve body. When the valve cover 30 is assembled with the valve body 10, the valve cover limiting ribs 305 and the limiting ribs 105 of the valve body enclose the sealing member 2 (to be described later) inside the water outlets of the valve core 10. The water inlet 301 of the valve cover 30 leads to a hollow cylindrical body 302. The cylindrical body 302 is connected with the valve cover 30 by ultrasonic welding, screwing, integrated injection molding or other processes (in this embodiment, the cylindrical body 302 is connected with the valve cover 30 by integrated injection molding). One end of the cylindrical body 302 is open, and the other end is provided with a tubular water inlet pipe 303 extending axially from the center of the bottom wall and not communicating with the bottom wall. The water inlet pipe 303 protrudes from the cylindrical body 302 at both ends.

[0046] Referring to Figure 2 and Figure 8 , the open end of the cylindrical body 302 is water-tightly connected with a vacuum breaker cover 5. The vacuum breaker cover 5, the inner periphery of the cylindrical body 302 and the outer periphery of the water inlet pipe 303 enclose a water inlet cavity 304. The vacuum breaker cover 5 is provided with an air guide pipe 51 communicating with the water inlet cavity 304 and the outside air. The water inlet cavity 304 between the vacuum breaker cover 5 and the water inlet pipe 303 is provided with an elastic gasket 4. When the water inlet pipe 303 is under positive pressure, the water flow pressure lifts the elastic gasket 4 to fit the flange provided at the bottom end of the vacuum breaker cover 5, disconnecting the passage between the water inlet cavity 304 and the air guide pipe 51, and the water flow can pass through the water inlet cavity 304 and the water inlet 301 of the valve cover 30. When the water inlet pipe 303 is under negative pressure, the elastic gasket 4 fits the edge of the outlet end of the water inlet pipe 303 under the action of gravity and negative pressure suction, disconnecting the passage between the water inlet pipe 303 and the water inlet cavity 304, and the outside air can enter the water inlet cavity 304 through the air guide pipe 51 to break the vacuum state of the water inlet cavity 304.

[0047] As shown in Figure 9 , 10 , the valve core 20 is a spherical body made of synthetic resin, metal or the like. The upper and lower ends of the valve core 20 are cut to form flat surfaces, and the valve core 20 is provided with a flow path (internal water path) 205 inside for selectively communicating with the water inlet 301 of the valve cover 30 and the three water outlets 101, 102 and 103.

[0048] The internal water passage 205 is formed by a through hole in the valve core 20 from its lower part to the side part, the lower part opening is always communicated with the water inlet 301, and the side part opening is communicated with any one of the three water outlets 101, 102 and 103 or simultaneously with 102 and 103.

[0049] Specifically, a longitudinal through hole 204 is formed in the valve core 20, which penetrates the upper and lower end planes of the valve core 20 along the vertical direction (the rotation axis O direction of the valve core 20), and the cross section of the longitudinal through hole 204 is substantially hexagonal (i.e. the upper and lower end openings are substantially hexagonal), and (along the direction perpendicular to the rotation axis O of the valve core 20) three through holes with circular cross sections are formed, which converge from the outer circumference (side part) of the valve core 20 to the longitudinal through hole 204, namely the first through hole 201, the second through hole 202 and the third through hole 203, the specific positions of which are shown in Figure 10 As shown in the axial projection view, the center line of the sphere symmetric to the second through hole 202 and the third through hole 203 is Y, and the center line of the sphere perpendicular to the center line Y is X, then the first through hole 201, the second through hole 202 and the third through hole 203 are located on the same side of the center line X, and the intersection angle between the second water outlet 102 axis and the third water outlet 103 axis is also an acute angle Q.

[0050] The lower part opening of the longitudinal through hole 204 is always communicated with the water inlet 301, and through the rotation of the valve core 20, the through holes of the valve core are selectively communicated with the water outlets of the valve body, and the communication state is described in detail below.

[0051] Referring to Figure 2 and Figure 11 It can be seen that the valve stem 1 is composed of the following parts from the lower side: a lower engaging part 11 which is complementary in shape (i.e. the cross section is substantially hexagonal) to the longitudinal through hole 204 of the valve core 20 or slightly smaller in shape than the longitudinal through hole 204; an intermediate main body part 12 which is smaller in shape than the lower engaging part 11 and has a circular cross section, and an annular groove for placing an elastic sealing ring is formed radially downward on the outer circumference of the intermediate main body part; an upper connecting part 13 which is slightly smaller in outer diameter than the intermediate main body part 12 and has a circular cross section, and an annular groove for placing a retainer ring is formed radially downward on the outer circumference of the upper connecting part 13, and a lower recess 14 which can fit the flat shaft of the motor is formed at the center of the top end of the upper connecting part 13. The lower part of the lower engaging part 11 is inserted into the upper opening of the longitudinal through hole 204, the intermediate main body part 12 is inserted into the insertion hole 104 of the valve body 10, and the upper connecting part 13 protrudes from the insertion hole 104 and is fixed to the power member on the upper side. By inserting the lower engaging part 11 into the longitudinal through hole 204, the valve stem 1 can drive the valve core 20 to rotate around the center line (i.e. the rotation axis O) of the valve stem 1.

[0052] When assembled, the upper end of the lower engaging portion 11 in the valve stem 1 abuts against the lower end of the surrounding rib around the insertion hole 104 of the valve body 10, and a resilient grommet is press-fitted in the groove of the upper connecting portion 13, so that the valve stem 1 is limited in the axial direction but can rotate relative to the valve body 10.

[0053] Further, referring to Figure 2 , a center-apertured ring-shaped seal member 2 made of a material having a low friction coefficient and self-lubricating properties, such as Teflon (registered trademark), is arranged around each water outlet on the inner wall surface of the valve body 10. As shown in Figure 12 , 13 , the portion around the aperture in the inner periphery (surface) of the seal member 2 is formed by a curved surface (part of a concave spherical surface) 21, and the curved surface 21 is adapted to abut against the spherical outer peripheral sealing surface (curved surface) of the valve core 20 to form a sealing pair, and the seal member 2 (inner side) is rotatably arranged around the valve core 20.

[0054] Further, the end surface of the seal member 2 facing away from the valve core 20 is provided with an annular groove 22, and a resilient seal ring 3 made of a resilient material such as rubber is contained in the groove 22 as a sealing member. The resilient seal ring 3 is sandwiched between each seal member and the periphery of each water outlet of the valve body 10, and the inner peripheral sealing surface of each seal member is urged to the side of the outer peripheral sealing surface of the valve core 20 by the elastic force of the resilient seal ring 3 to tightly abut against the outer peripheral sealing surface of the valve core 20, so that the valve core 20 and each water outlet are water-tightly sealed.

[0055] The switching valve 100 for waterway control of the electric toilet according to the present application is driven by a motor directly connected to the valve stem 1 or a motor connected to the valve stem 1 via a power member such as a speed reducer to rotate the valve core 20 in the valve chamber 1030, and as shown in Figures 1-2 , the motor is directly connected to the valve stem 1 to drive the valve core 20 in the present embodiment, and the internal waterway 205 provided in the valve core 20 selectively switches the communication state of the water inlet 301 provided in the valve cover 30 and the three water outlets 101, 102, 103. In other embodiments, for example, the motor can be connected to a pinion gear to drive the valve stem 1 connected to a large gear, so that the rotational torque of the valve stem 1 can be increased.

[0056] Specifically, by rotating the valve core 20 around the rotation axis O, the following modes are selectively obtained: a mode in which the water inlet 301 provided in the bottom of the valve cover 30 is not communicated with the first water outlet 101, the second water outlet 102, and the third water outlet 103 provided in the outer periphery of the valve body 10 (shut-off state), as shown in Figure 14 ; a mode in which the water inlet 301 provided in the bottom of the valve cover 30 is communicated with the first water outlet 101 (via the internal waterway 205 formed by the lower half of the longitudinal through hole 204 and the first communication hole 201) provided in the outer periphery of the valve body 10 (first communication state), as shown in Figure 15 ; a mode in which the water inlet 301 provided in the bottom of the valve cover 30 is communicated with the second water outlet 102 (via the internal waterway 205 formed by the lower half of the longitudinal through hole 204 and the second communication hole 202) provided in the outer periphery of the valve body 10 (second communication state), as shown in Figure 16the mode (the second communication state) in which the water inlet 301 provided at the bottom of the valve cover 30 is communicated with the second water outlet 102 provided at the outer periphery of the valve body 10 (by means of the internal water passage 205 constituted by the lower half of the valve core longitudinal through hole 204 and the second through hole 202); as Figure 17 the mode (the third communication state) in which the water inlet 301 provided at the bottom of the valve cover 30 is simultaneously communicated with the second water outlet 102 and the third water outlet 103 provided at the outer periphery of the valve body 10 (by means of the internal water passage 205 constituted by the lower half of the valve core longitudinal through hole 204 and the second through hole 202 and the third through hole 203). Figure 18 the mode (the fourth communication state) in which the water inlet 301 provided at the bottom of the valve cover 30 is communicated with the third water outlet 103 provided at the outer periphery of the valve body 10 (by means of the internal water passage 205 constituted by the lower half of the valve core longitudinal through hole 204 and the third through hole 203).

[0057] In the above-mentioned cutoff state, the openings of the seal 2 corresponding to the three water outlets are all closed by the outer peripheral sealing surface of the valve core 20, the flow paths connected with the respective water outlets are cut off, and the fluid flowing upward from the water inlet 301 is not conducted in the internal water passage 205 of the valve core 20; in the above-mentioned first communication state, the openings of the seal 2 corresponding to the second water outlet 102 and the third water outlet 103 are closed by the outer peripheral sealing surface of the valve core 20, the flow paths connected with the second water outlet 102 and the third water outlet 103 are cut off, and the fluid flowing upward from the water inlet 301 is conducted in the internal water passage 205 of the valve core 20 and flows out only from the first water outlet 101; in the above-mentioned second communication state, the openings of the seal 2 corresponding to the first water outlet 101 and the third water outlet 103 are closed by the outer peripheral sealing surface of the valve core 20, the flow paths connected with the first water outlet 101 and the third water outlet 103 are cut off, and the fluid flowing upward from the water inlet 301 is conducted in the internal water passage 205 of the valve core 20 and flows out only from the second water outlet 102; in the above-mentioned third communication state, the opening of the seal 2 corresponding to the first water outlet 101 is closed by the outer peripheral sealing surface of the valve core 20, the flow path connected with the first water outlet 101 is cut off, and the fluid flowing upward from the water inlet 301 is conducted in the internal water passage 205 of the valve core 20 and flows out from the second water outlet 102 and the third water outlet 103 at the same time; in the above-mentioned fourth communication state, the openings of the seal 2 corresponding to the first water outlet 101 and the second water outlet 102 are closed by the outer peripheral sealing surface of the valve core 20, the flow paths connected with the first water outlet 101 and the second water outlet 102 are cut off, and the fluid flowing upward from the water inlet 301 is conducted in the internal water passage 205 of the valve core 20 and flows out only from the third water outlet 103.

[0058] Further, as Figure 19As shown, the switching valve 100 for waterway control of the electric toilet seat of the present application is connected with a pressure reducing valve 40 at the first water outlet pipe 106 of the valve body, and the pressure reducing valve 40 is a product of prior art, the structure of which will not be described here.

[0059] The present application also provides an electric toilet seat 50, Figure 20 A schematic diagram of the three-dimensional structure of the electric toilet seat (with the seat ring, main machine upper cover, etc. removed), the main machine contains a washing assembly 501 for washing the local body, the main machine supports the toilet bowl 502 for containing the excrement, the toilet bowl 502 is provided with a water jet for flushing the excrement, including a first water jet 5021 located at the upper part of the toilet bowl 502 and a second water jet 5022 (not shown) located at the sewage outlet of the lower part of the toilet bowl 502. The main machine part also contains the above-mentioned switching valve 100 for waterway control of the electric toilet seat, the water inlet pipe 303 of the switching valve 100 for waterway control of the electric toilet seat is connected to the water source (not shown), the water outlet end of the pressure reducing valve of the switching valve 100 for waterway control of the electric toilet seat is connected to the washing assembly 501, and the fluid after pressure stabilization is used to wash the local body, the second water outlet pipe 107 of the switching valve 100 for waterway control of the electric toilet seat is connected to the first water jet 5021 of the toilet bowl, and the flushing water jetted from the first water jet 5021 flows on the water guide track formed on the inner wall surface of the upper part of the toilet bowl 502, and rotates on the inner wall surface of the toilet bowl 502 and falls down, and the third water outlet pipe 108 of the switching valve 100 for waterway control of the electric toilet seat is connected to the second water jet 5022 of the toilet bowl, and the flushing water jetted from the second water jet 5022 directly pushes the excrement to the sewage outlet of the lower part of the toilet bowl 502.

[0060] The present application includes but is not limited to the above-mentioned embodiments and the contents shown in the drawings, and all other product structures with the same substantive content as the technical solution of the present application fall within the protection scope of the present application.

Claims

1. A switching valve (100) for controlling the water path of an electric toilet, comprising: The valve body (10) is a hollow cylindrical body with an axial end open and an inserting hole (104) provided at the center of the bottom wall of the other end. Three water outlets are provided on the outer peripheral wall of the cylindrical body, namely a first water outlet (101), a second water outlet (102) and a third water outlet (103); A valve cover (30) covers the opening of the valve body (10) to form a valve chamber (1030), wherein the valve cover (30) is provided with a water inlet (301) communicating with the valve chamber (1030); A valve core (20), wherein the outer peripheral surface of the valve core (20) is a spherical curved surface, and the valve core (20) can be freely rotatably arranged in the valve chamber (1030) along the rotation axis O, and the valve core is provided with a longitudinal through hole (204) axially penetrating the valve core, and the spherical surface of the valve core (20) is provided with a first conducting hole (201), a second conducting hole (202), and a third conducting hole (203) communicating with the longitudinal through hole (204); A sealing member (2), the sealing member (2) being arranged between the valve core (20) and the water outlet, the surface of the sealing member (2) facing the valve core (20) being a spherical curved surface, an elastic sealing ring (3) being arranged between the sealing member (2) and the valve body (10), the elastic sealing ring (3) pressing the sealing member (2) to fit the valve core (20); A valve stem (1), one end of which is plugged into the longitudinal through hole (204), and the other end of which passes through the inserting hole (104) in a watertight and sealed manner to connect to an external power member, driving the valve core (20) to rotate around the rotation axis O; The invention is characterized in that, in the axial projection of the valve body (10), the second water outlet (102) and the third water outlet (103) are located on the same side of the center line X, and the intersection angle between the axis of the second water outlet (102) and the axis of the third water outlet (103) is an acute angle Q1, and the first water outlet (101) is located on the other side of the center line X; in the axial projection of the valve core (20), the first conducting hole (201), the second conducting hole (202) and the third conducting hole (203) are located on the same side of the center line X , the intersection angle between the axis of the second conducting hole (202) and the axis of the third conducting hole (203) is also an acute angle Q1; the valve core rotates so that the internal water path of the valve core selectively communicates with the first water outlet (101), the second water outlet (102) and the third water outlet (103) respectively; or communicates with the second water outlet (102) and the third water outlet (103) at the same time; or does not communicate with the first water outlet (101), the second water outlet (102) and the third water outlet (103).

2. The electric toilet water channel control switching valve (100) according to claim 1, characterized in that: The top end of the inner cavity of the valve body (10) extends axially downward in the area adjacent to the three water outlets to form a valve body limiting rib (105), and the bottom end of each valve body limiting rib (105) is respectively an arc surface coaxial with each water outlet; the valve cover (30) is provided with a valve cover limiting rib (305) on the end surface facing the valve body corresponding to the bottom end of each valve body limiting rib (105), and the top end of the valve cover limiting rib (305) is respectively an arc surface identical to the corresponding valve body limiting rib (105); after the valve cover (30) is covered with the valve body (10), the valve cover limiting rib (305) and the valve body limiting rib (105) limit the sealing member (2) between the valve core (20) and each water outlet.

3. The electric toilet water channel control switching valve (100) according to claim 1 or 2, characterized in that: The water inlet (301) of the valve cover (30) leads to a hollow cylindrical body (302). One end of the hollow cylindrical body is open, and a water inlet pipe (303) extending axially toward both ends and not connected to the water inlet (301) is provided at the center of the bottom wall of the other end. The open end of the hollow cylindrical body is watertightly connected to a vacuum breaker cover (5). The vacuum breaker cover (5), the inner periphery of the hollow cylindrical body (302) and the outer periphery of the water inlet pipe (303) together form a water inlet cavity (304). The vacuum breaker cover (5) is provided with an air guide pipe (51) connected to the water inlet cavity (304). An elastic gasket (4) is arranged between the vacuum breaker cover (5) and the water inlet pipe (303). The elastic gasket (4) is used to connect or disconnect the passage between the water inlet cavity (304) and the air guide pipe (51).

4. The electric toilet water channel control switching valve (100) according to claim 1 or 2, characterized in that: It also includes a pressure reducing valve (40), wherein the water inlet channel (401) of the pressure reducing valve is connected to the first water outlet pipe (106).

5. An electric toilet (50), comprising a main unit equipped with a cleaning component (501) for cleaning a part of the human body, a toilet bowl (502) supporting the main unit, and a water spray port for flushing human excrement in the toilet bowl (502), characterized in that: It also includes a switching valve (100) for controlling the water circuit of an electric toilet as described in any one of claims 1 to 4, wherein the first water outlet pipe (106) leads to a cleaning component (501) for cleaning local parts of the human body, and the second water outlet pipe (107) and the third water outlet pipe (108) are connected to a toilet bowl spray port for flushing human excrement.

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