Switching valve for water path control of electric pedestal pan and electric pedestal pan

Abstract

The switching valve comprises a valve body, a valve cover, a valve element, a sealing piece and a valve rod, in the axial projection drawing of the valve body, a second water outlet and a third water outlet are located on the same side of the center line X, the intersection angle of the axis of the second water outlet and the axis of the third water outlet is an acute angle Q1, and the intersection angle of the second water outlet and the third water outlet is an acute angle Q2. The first water outlet is positioned on the other side of the center line X; in the axial projection drawing of the valve element, the axis of the first via hole, the axis of the second via hole and the axis of the third via hole are located on the same side of the center line X, and the intersection angle of the axis of the second via hole and the axis of the third via hole is also an acute angle Q1. Through the arrangement of the water outlet of the valve body and the through hole of the valve element, the switching valve can achieve the functions that the first water way, the second water way and the third water way are independently communicated and the second water way and the third water way are simultaneously communicated only through one power source. The invention further provides an electric toilet using the switching valve.

Description

Technical Field

[0001] The present invention relates to a switching valve for controlling water circuit of an electric toilet, which can be classified as a diverter valve according to its use and function, and an electric toilet using the switching valve. The IPC classifications are F16K 11 / 085, F16K 17 / 30, E03D 5 / 01 and E03D 5 / 00. Background Art

[0002] Electric toilets generally have waterways for cleaning the human body and for flushing toilet bowl dirt. The toilet bowl flushing waterway generally has two routes: one outlet is connected to the barrel wall flushing side (RIM side is also called the brush ring side), and the other outlet is connected to the siphon flushing side (JET side is also called the bottom flushing side). Usually, the RIM side pipe outlet is located below the toilet bowl seat ring near the seat ring, and the JET side pipe outlet is located lower and located in the toilet bowl water storage part. In order to meet the above functional requirements, multiple electromagnetic devices are generally set up to drive the opening and closing of these waterways respectively, so there are many control electrical components, the overall structure is complex, the cost is high, and the need for better control of the waterway is not met. See patent documents CN116146748A and CN210032003U.

[0003] For common knowledge and terminology, except as otherwise specified in this manual, please refer to the Valve Manual: Selection (Chemical Industry Press, 1st edition, 2013), Mechanical Engineering Handbook and Electrical Engineering Handbook (Mechanical Industry Press, 1st edition, 1978 and 2nd edition, 1997), as well as national standards GB / T21465-2008 Valve Terminology, GB / T 23131-2019 Electric Toilet Seats for Household and Similar Purposes and GB / T34549-2017 Sanitary Ware Intelligent Toilets. Summary of the invention

[0004] An object of the present invention is to provide a water channel control switching valve for an electric toilet and the electric toilet that improves the problems described in the background art.

[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical solution: a switching valve for controlling the water circuit of an electric toilet, comprising:

[0006] The valve body is a hollow cylindrical body, one end of which is open axially, and the center of the bottom wall of the other end is provided with an inserting hole, and the outer peripheral wall of the cylindrical body is provided with three water outlets, namely the first water outlet, the second water outlet and the third water outlet;

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

[0008] A valve core, wherein the outer peripheral surface of the valve core is a spherical curved surface, the valve core can be freely rotatably arranged in the valve chamber along the rotation axis O, the valve core is provided with a longitudinal through hole axially penetrating the valve core, and the spherical surface of the valve core is provided with a first conduction hole, a second conduction hole and a third conduction hole communicating with the longitudinal through hole;

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

[0010] A valve stem, one end of which is inserted into the longitudinal through hole, and the other end of which passes through the inserting hole in a watertight manner and is connected to an external power member to drive the valve core to rotate around the rotation axis O;

[0011] In the axial projection 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 axis of the second water outlet and the axis of the third water outlet 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 of the valve core, the axes of the first and second conduction holes and the third conduction hole are located on the same side of the center line X, and the intersection angle between the axis of the second and third conduction holes is also an acute angle Q1; the rotation of the valve core causes the internal water channel of the valve core to selectively communicate with the first water outlet, the second water outlet and the third water outlet separately; or communicate with the second water outlet and the third water outlet at the same time; or not communicate with the first water outlet, the second water outlet and the third water outlet.

[0012] The arrangement of the water outlet of the valve body and the conducting hole of the valve core enables the switching valve to achieve individual conduction of the first, second and third water paths or simultaneous conduction of the second and third water paths with only one rotation drive, that is, the electric toilet using the switching valve has the function of separately conducting the water path for cleaning the local part of the human body and the upper and lower water paths for flushing waste in the toilet bowl or simultaneously conducting the upper and lower water paths for flushing waste in the toilet bowl.

[0013] Furthermore, the top of the inner cavity of the valve body extends axially downward in the area adjacent to the three water outlets to form a valve body limiting rib, and the bottom ends of the valve body limiting ribs are respectively presented as arc-shaped surfaces coaxial with the water outlets; the valve cover is provided with a valve cover limiting rib on the end surface facing the valve body corresponding to the bottom ends of the valve body limiting ribs, and the top ends of the valve cover limiting ribs are respectively presented as arc-shaped surfaces the same as the corresponding valve body limiting ribs; after the valve cover and the valve body are covered, the valve cover limiting ribs and the valve body limiting ribs limit the sealing member between the valve core and the water outlets. This structure limits the sealing member when the valve cover and the valve body cover are covered, and the structure is simple and reliable.

[0014] Furthermore, the water inlet of the valve cover leads to a hollow cylindrical body, one end of the hollow cylindrical body is open, and a water inlet pipe extending axially to both ends and not connected to the water inlet is provided in 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, the vacuum breaker cover, the inner circumference of the hollow cylindrical body and the outer circumference of the water inlet pipe together form a water inlet cavity, the vacuum breaker cover is provided with an air 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 air guide pipe.

[0015] By providing a vacuum breaking structure at the common water inlet end, it is possible to prevent the switching valve from sucking in sewage when the water inlet pipe is under negative pressure.

[0016] Furthermore, a pressure reducing valve is included, and the water inlet channel of the pressure reducing valve is connected to the first water outlet pipe. In this way, the water flow after the pressure reduction and stabilization by the pressure reducing valve is then led to the cleaning component for cleaning the human body, which improves the user's comfort.

[0017] In addition, the present invention also provides an electric toilet, including a main unit equipped with a cleaning component for cleaning local parts of the human body, a toilet bowl supporting the main unit, a water spray outlet for flushing human excrement in the toilet bowl, and the above-mentioned switching valve for controlling the water circuit of the electric toilet, wherein the first water outlet is connected to the cleaning component for cleaning local parts of the human body, and the second water outlet and the third water outlet are connected to the toilet bowl water spray outlet for flushing human excrement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a switching valve for controlling the water circuit of an electric toilet according to the present invention.

[0019] Figure 2 It is a partial cross-sectional view of the switching valve for controlling the water circuit of the electric toilet according to the present invention.

[0020] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0021] Figure 4 It is a structural schematic diagram of the valve body of the switching valve for controlling the water circuit of an electric toilet according to the present invention.

[0022] Figure 5 It is a radial cross-sectional view of the valve body of the switching valve for controlling the water circuit of an electric toilet according to the present invention.

[0023] Figure 6 It is a structural schematic diagram of the valve cover of the switching valve for controlling the water circuit of an electric toilet according to the present invention.

[0024] Figure 7 The present invention is an axial cross-sectional view of the valve cover of the switching valve for controlling the water circuit of the electric toilet.

[0025] Figure 8It is an axial cross-sectional view of the switching valve for controlling the water circuit of the electric toilet according to the present invention, passing through the axis of the air guide pipe.

[0026] Fig. 9 It is a structural schematic diagram of the valve core of the switching valve for controlling the water circuit of an electric toilet according to the present invention.

[0027] Fig.10 It is a radial cross-sectional view of the valve core of the switching valve for controlling the water circuit of the electric toilet according to the present invention.

[0028] Fig.11 The utility model is an axial cross-sectional view of the valve stem of the switching valve for controlling the water circuit of the electric toilet according to the present invention.

[0029] Fig.12 It is a structural schematic diagram of the sealing member of the switching valve for controlling the water circuit of the electric toilet according to the present invention.

[0030] Fig.13 The present invention is an axial cross-sectional view of the sealing member of the switching valve for controlling the water circuit of the electric toilet.

[0031] Fig.14 It is a schematic diagram of the cut-off state mode of the switching valve for controlling the water circuit of the electric toilet according to the present invention.

[0032] Fig.15 It is a schematic diagram of the first connection mode of the switching valve for controlling the water circuit of the electric toilet according to the present invention.

[0033] Fig.16 It is a schematic diagram of the second connection mode of the switching valve for controlling the water circuit of the electric toilet according to the present invention.

[0034] Fig.17 It is a schematic diagram of the third connection mode of the switching valve for controlling the water circuit of the electric toilet according to the present invention.

[0035] Fig.18 It is a schematic diagram of the fourth connection mode of the switching valve for controlling the water circuit of the electric toilet according to the present invention.

[0036] Fig.19 It is a schematic diagram of the structure of the water circuit control switching valve of the electric toilet after being connected to the pressure reducing valve of the present invention.

[0037] Fig. 20 It is a structural schematic diagram of the electric toilet of the present invention.

[0038] Reference numerals:

[0039] Valve stem 1, lower engaging portion 11, middle main body portion 12, upper connecting portion 13, lower concave portion 14, sealing member 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, switching valve 100 for electric toilet water circuit control. 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 creative work are within the scope of protection of the present invention.

[0041] As shown in the accompanying drawings, the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. When describing the device, system, equipment, and structure of the present invention, the side where the valve core drive member is located is referred to as the upper side or the upper side, the opposite side is referred to as the lower side or the lower side, the side close to the valve core rotation axis is referred to as the inward side or the inner side, and the opposite side is referred to as the outward side or the outer side. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0042] The water circuit control switching valve 100 of the electric toilet of the present invention switches the flowing fluid in the electric toilet to different flow circuits for use, such as Figure 1-3 As shown, it comprises: a hollow cylindrical valve body 10 with one end open, a valve cover 30 covering the open end of the valve body 10, the valve body 10 and the valve cover 30 enclose a valve chamber 1030, a spherical valve core (also called a ball valve core) 20 rotatably arranged 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 a 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 up and down 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 also 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 communicating with the inner cavity of the columnar body are provided on the outer peripheral wall of the columnar body, namely, a first water outlet 101, a second water outlet 102 and a third water outlet 103. Their positions are as shown in FIG. Figure 6 As shown, in the axial projection diagram, the center line of the insertion hole 104 symmetrical to the second water outlet 102 and the third water outlet 103 is set as Y, and the center line X is perpendicular to the center line Y, 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 intersection angle between the axis of the second water outlet 102 and the axis of the third water outlet 103 is an acute angle Q, and the first water outlet 101 is located on the other side of the center line X. On the outer periphery of the above-mentioned columnar body, water outlet pipes consisting of pipe joints are integrally connected in a manner of communicating with the water outlets 101, 102, and 103, namely the first water outlet pipe 106, the second water outlet pipe 107, and the third water outlet pipe 108. In addition, the above-mentioned insertion hole 104 is provided at the top center of the columnar body for the valve stem 1 connected to the valve core 20 to pass through, and the outer edge of the insertion hole 104 protrudes axially downward and upward to form a circular rib, and an elastic sealing ring is provided between the valve stem 1 and the inner wall of the rib to seal the valve chamber 1030. In addition, 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, and the bottom ends of the 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, spiral fixing, snap connection, etc. (in the illustrated example, ultrasonic welding is used), and the valve cover 30 and the valve body 10 are enclosed to form a valve chamber 1030.

[0045] See also Figure 6 , Figure 7The valve cover 30 is provided with a water inlet 301 connected to the valve chamber 1030. After being assembled with the valve body, the axial direction of the water inlet 301 is the same as the direction of the rotation axis O of the valve core 20 and is perpendicular to the axial direction of each water outlet. The valve cover 30 is provided with a valve cover limiting rib 305 at the end surface facing the valve body corresponding to the bottom end of each valve body limiting rib 105. The top end of the valve cover limiting rib 305 is provided with an arc-shaped concave surface like the bottom end of the valve body limiting rib 105. When the valve cover 30 is covered with the valve body 10, the valve cover limiting rib 305 and the valve body limiting rib 105 are correspondingly enclosed to limit the sealing member 2 (described in detail later) inside each water outlet of the valve core 10. The water inlet 301 of the valve cover 30 leads to a hollow columnar body 302, and the columnar body 302 can be connected to the valve cover 30 by ultrasonic welding, spiral fixing, integrated injection molding and other processes (in this embodiment, the columnar body 302 is connected to the valve cover 30 by integrated injection molding). One end of the columnar body 302 is open, and the center of the bottom wall of the other end is provided with a tubular water inlet pipe 303 that extends axially to both ends and is not connected to the water inlet pipe 303, and both ends of the water inlet pipe 303 protrude from the columnar body 302.

[0046] See also Figure 2 and Figure 8 The open end of the columnar body 302 is watertightly connected to a vacuum breaker cover 5. The vacuum breaker cover 5, the inner periphery of the columnar body 302 and the outer periphery of the water inlet pipe 303 form a water inlet chamber 304. The vacuum breaker cover 5 has an air guide pipe 51 connecting the water inlet chamber 304 and the outside air. The water inlet chamber 304 area 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 and connects it with the vacuum breaker. The flange at the bottom end of the cover 5 fits together, disconnecting the passage between the water inlet chamber 304 and the air guide tube 51, and the water flow can be conducted through the water inlet chamber 304 and the water inlet port 301 of the valve cover 30; when the water inlet pipe 303 is under negative pressure, the elastic gasket 4 fits together with 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 chamber 304, and the outside air can enter the water inlet chamber 304 through the air guide tube 51, destroying the vacuum state of the water inlet chamber 304.

[0047] like Fig. 9 , 10 As shown, the valve core 20 is a spherical body made of synthetic resin, metal, etc., and its upper and lower ends are cut to form planes. A flow path (internal water path) 205 is provided inside for selectively connecting with the water inlet 301 and the three water outlets 101, 102 and 103 provided on the valve cover 30.

[0048] The above-mentioned internal water channel 205 is composed of a through hole that penetrates from the bottom to the side of the valve core 20, and its lower opening is always connected to the water inlet 301, and its side opening is connected to any one of the three water outlets 101, 102 and 103 or to 102 and 103 at the same time.

[0049] Specifically, a longitudinal through hole 204 having a substantially hexagonal cross section (i.e., the upper and lower end openings are substantially hexagonal) is formed in the valve core 20, which penetrates the upper and lower end planes of the valve core 20 in the up-down direction (the direction of the rotation axis O of the valve core 20), and three through holes having a circular cross section are formed (along the direction orthogonal to the rotation axis O of the valve core 20) from the outer periphery (side) of the valve core 20 to merge into the longitudinal through hole 204, namely, a first through hole 201, a second through hole 202, and a third through hole 203. Their specific positions are as follows: Fig.10 As shown, in the axial projection diagram, the center line of the sphere symmetrical to the second conductive hole 202 and the third conductive hole 203 is set as Y, and the center line of the sphere perpendicular to the center line Y is set as X, then the first conductive hole 201, the second conductive hole 202, and the third conductive hole 203 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 also an acute angle Q.

[0050] The longitudinal through hole 204 (the lower opening thereof) is always connected to the water inlet 301. By rotating the valve core 20, the conducting hole of the valve core is selectively connected to the water outlet of the valve body, and the connection state will be described in detail later.

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

[0052] During assembly, the upper end of the lower engaging portion 11 of the valve stem 1 abuts and locks with the lower end of the rib surrounding the insertion hole 104 of the valve body 10, and an elastic retaining ring is pressed and fixed in the groove of the upper connecting portion 13, so that the valve stem 1 is axially limited but can rotate relative to the valve body 10.

[0053] In addition, see Figure 2 A centrally-opened annular seal 2 made of a material with a low friction coefficient and self-lubricating properties such as Teflon (registered trademark) is arranged around each water outlet on the inner wall of the valve body 10. Fig.12 , 13 As shown, the portion around the opening in the inner periphery (surface) of the seal 2 is composed of a curved surface (a portion of a concave spherical surface) 21, and the curved surface 21 is adapted to be connected with the spherical outer peripheral sealing surface (curved surface) of the valve core 20 to form a sealing pair, and the seal 2 (inside) is configured to allow the valve core 20 to rotate and slide freely.

[0054] In addition, an annular groove 22 is provided on the end face of the seal 2 facing away from the valve core 20, and an elastic sealing ring 3 as a sealing component made of an elastic material such as rubber is accommodated in the groove 22. The elastic sealing ring 3 is clamped between each seal and the periphery of each water outlet of the valve body 10. The elastic force of the elastic sealing ring pushes the inner peripheral sealing surface of each seal to the outer peripheral sealing surface side of the valve core 20 so that it is tightly attached to the outer peripheral sealing surface side of the valve core 20, thereby, the valve core 20 and each water outlet are watertightly sealed.

[0055] The water circuit control switching valve 100 of the electric toilet of the present invention is driven directly by a motor or by a motor in conjunction with a reducer or other power parts to connect the valve stem 1 to drive the valve core 20 to rotate in the valve chamber 1030. Figure 1-2 As shown, in this embodiment, a motor is directly connected to the valve stem 1 to drive the valve core 20, and the internal waterway 205 provided in the valve core 20 selectively switches the connection state of the water inlet 301 and the three water outlets 101, 102, 103 provided in the valve cover 30. In other embodiments, for example, the motor may be connected to a small 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: Fig.14 As shown in the mode (cut-off state), the water inlet 301 provided at the bottom of the valve cover 30 is not connected to the first water outlet 101, the second water outlet 102, and the third water outlet 103 provided on the periphery of the valve body 10; Fig.15 As shown in the figure, the water inlet 301 provided at the bottom of the valve cover 30 is connected to the first water outlet 101 provided on the periphery of the valve body 10 (via the internal water path 205 formed by the lower half of the valve core longitudinal through hole 204 and the first conducting hole 201) (first connected state); Fig.16The water inlet 301 provided at the bottom of the valve cover 30 is connected to the second water outlet 102 provided on the outer periphery of the valve body 10 (via the internal water path 205 formed by the lower half of the valve core longitudinal through hole 204 and the second conducting hole 202) (second connected state); Fig.17 As shown in the figure, the water inlet 301 provided at the bottom of the valve cover 30 is connected with the second water outlet 102 and the third water outlet 103 provided on the outer periphery of the valve body 10 (via the internal water path 205 formed by the lower half of the valve core longitudinal through hole 204 and the second conductive hole 202 and the third conductive hole 203) at the same time (third connected state); Fig.18 The water inlet 301 arranged at the bottom of the valve cover 30 is shown in a mode (fourth connected state) in which the third water outlet 103 arranged on the outer periphery of the valve body 10 is connected (by means of the internal water path 205 formed by the lower half of the valve core longitudinal through hole 204 and the third conducting hole 203).

[0057] In the above-mentioned cut-off state, the openings of the sealing members 2 corresponding to the three water outlets are all blocked by the outer peripheral sealing surface of the valve core 20, the flow path connected to each water outlet is cut off, and the fluid flowing upward from the water inlet 301 is not conducted in the internal water path 205 of the valve core 20; in the above-mentioned first connected state, the openings of the sealing members 2 corresponding to the second water outlet 102 and the third water outlet 103 are blocked by the outer peripheral sealing surface of the valve core 20, the flow path connected to the second water outlet 102 and the third water outlet 103 is cut off, and the fluid flowing upward from the water inlet 301 passes through the internal water path 205 of the valve core 20 and only flows out from the first water outlet 101; in the above-mentioned second connected state, the openings of the sealing members 2 corresponding to the first water outlet 101 and the third water outlet 103 are blocked by the outer peripheral sealing surface of the valve core 20, the flow path connected to the first water outlet 101 and the third water outlet 103 is cut off, and the fluid flowing upward from the water inlet 301 passes through the internal water path 205 of the valve core 20 and only flows out from the first water outlet 101. is cut off, and the fluid flowing upward from the water inlet 301 passes through the internal water path 205 of the valve core 20 and only flows out from the second water outlet 102; in the above-mentioned third connected state, the opening of the sealing member 2 corresponding to the first water outlet 101 is blocked by the outer peripheral sealing surface of the valve core 20, and the flow path connected to the first water outlet 101 is cut off, and the fluid flowing upward from the water inlet 301 passes through the internal water path 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 connected state, the opening of the sealing member 2 corresponding to the first water outlet 101 and the second water outlet 102 is blocked by the outer peripheral sealing surface of the valve core 20, and the flow path connected to the first water outlet 101 and the second water outlet 102 is cut off, and the fluid flowing upward from the water inlet 301 passes through the internal water path 205 of the valve core 20 and only flows out from the third water outlet 103.

[0058] Furthermore, if Fig.19As shown, the switching valve 100 for controlling the water circuit of an electric toilet of the present invention is connected to a pressure reducing valve 40 at the first water outlet pipe 106 of the valve body. The pressure reducing valve 40 is a prior art product and its structure is not described in detail here.

[0059] The present invention further provides an electric toilet 50, Fig. 20 3D schematic diagram of the electric toilet (without the seat ring, main unit cover, etc.), wherein the main unit accommodates a cleaning component 501 for cleaning the human body, a toilet bowl 502 that supports the main unit and accommodates human excrement, and the toilet bowl 502 is provided with water spray outlets for flushing away the excrement, including a first water spray outlet 5021 located at the upper part of the toilet bowl 502 and a second water spray outlet 5022 located at the lower part of the toilet bowl 502 (not shown). The main unit is also equipped with the electric toilet water circuit control switching valve 100. The water inlet pipe 303 of the electric toilet water circuit control switching valve 100 is connected to a water source (not shown). The water outlet of the pressure reducing valve of the electric toilet water circuit control switching valve 100 is connected to the cleaning component 501. The fluid after pressure stabilization is used to clean the human body. The second water outlet pipe 107 of the electric toilet water circuit control switching valve 100 is connected to the first water spray port 5021 of the toilet bowl. The flushing water sprayed from the first water spray port 5021 forms a water guide track on the upper inner wall of the toilet bowl 502 and rotates on the inner wall of the toilet bowl 502 and falls. The third water outlet pipe 108 of the electric toilet water circuit control switching valve 100 is connected to the second water spray port 5022 of the toilet bowl. The flushing water sprayed from the second water spray port 5022 directly pushes the excrement to the lower sewage outlet of the toilet bowl 502.

[0060] The present invention includes but is not limited to the contents shown in the above embodiments and the accompanying drawings. All other product structures having the same substantial contents as the technical solutions of the present invention fall within the protection scope of the present invention.

Claims

1. A switching valve (100) for controlling a water circuit of an electric toilet, comprising: The valve body (10) is a hollow cylindrical body, one axial end of which is open, and the center of the bottom wall of the other end is provided with an inserting hole (104), and the outer peripheral wall of the columnar body is provided with three water outlets, 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, the valve core (20) can be freely rotatably arranged in the valve chamber (1030) along the rotation axis O, 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 inserted 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) separately; 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 waterway control switching valve (100) for an electric toilet 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 presented as 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 presented as an arc surface identical to the corresponding valve body limiting rib (105); after the valve cover (30) and the valve body (10) are covered, 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 water channel control switching valve (100) for an electric toilet according to claim 1 or 2, characterized in that: The water inlet (301) of the valve cover (30) leads to a hollow columnar body (302). One end of the hollow columnar body is open, and a water inlet pipe (303) extending axially to both ends and not connected to the water inlet (301) is provided at the center of the bottom wall of the other end. The vacuum breaker cover (5) is watertightly connected to the open end of the hollow columnar body. The vacuum breaker cover (5), the inner circumference of the hollow columnar body (302) and the outer circumference of the water inlet pipe (303) 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 water channel control switching valve (100) for an electric toilet 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 provided with a cleaning component (501) for cleaning a part of a human body, a toilet bowl (502) supporting the main unit, a water spray port for flushing human excrement provided 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 a first water outlet pipe (106) leads to a cleaning component (501) for cleaning human body parts, and a second water outlet pipe (107) and a third water outlet pipe (108) are connected to a toilet bowl spray port for flushing human excrement.

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