Toilet heater

Abstract

The utility model provides a closestool heater which is characterized in that a converging cavity is arranged between heating pipes in a mounting shell, the converging cavity is provided with a water inlet hole, a water outlet hole, a pressure stabilizing hole and a pressure stabilizing groove, the pressure stabilizing groove and a water diversion groove hole are provided with a water inlet pipe and a water outlet pipe, and a temperature control groove hole and a temperature sensing hole are formed in the mounting shell; a pressure stabilizing valve, a heating wire, a temperature controller and a temperature sensor are respectively arranged in the pressure stabilizing groove, the heating pipe, the temperature control groove hole and the temperature sensing hole, and the upper cover covers the mounting shell and is provided with a water inlet and a water outlet; the end cover is arranged on the end face of the mounting shell. By optimizing the layout of the components, the components are integrated on the mounting shell, rapid sealing mounting is achieved through the upper cover, the end cover and the pressure stabilizing cover, an independent heater is formed, the functional modules do not need to be connected through hoses, a water path is simplified, and the cost is reduced. And the device has the advantages of comprehensive functions, high integration level, compact structure, small size, difficulty in water leakage, convenience in assembly and maintenance, low cost and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of toilets, and in particular relates to a toilet heater. Background Art

[0002] The buttocks washing of the smart toilet uses a unique vortex rotating bubble nozzle, which has a massage effect and promotes blood circulation, completely cleans the feeling and avoids bacterial growth. There are generally three types of smart toilets on the market: one is a smart toilet with cleaning, heating, sterilization, etc., one is a smart toilet with automatic cover change, and the other is a smart toilet with automatic cover change and cleaning function. The smart toilet uses water washing instead of toilet paper, which has triggered a bathroom revolution, technology, convenience, and hygiene; in the market, smart toilets are new products. Compared with traditional ceramic sanitary ware, smart toilets are an invention in the field of environmental protection technology that is closely related to the people. It is an environmentally friendly technology that completely breaks the unhygienic and environmentally unfriendly old model of traditional "flush toilets" and "simple toilets". In particular, there is still a lot of room for improvement in recognition and market share in the domestic market. The most concentrated area of ​​my country's smart toilet industry is mainly in Xiamen, which has certain industrial cluster advantages.

[0003] Patent CN206448333U discloses an intelligent toilet water flushing heating device, which includes a water inlet connector, a heater, a metal spiral, a heating body and a heating cavity; the hollow heater is arranged in the inner cavity of the heating body, and the outer wall of the heater is covered with a metal spiral. The utility model is provided with a metal spiral, i.e., a metal spring, in the heating cavity, so that the water flows in a spiral manner, which lengthens the distance of the water flowing through the heater. The spiral waterway destroys the laminar flow pattern of the flowing water, so that the flowing water forms turbulence, and the cold and hot water are mixed evenly; the spiral of the metal material can better transfer heat, and the heated water temperature is stable and uniform. However, it is necessary to isolate the heating body from the heating cavity, and most of the existing heating devices use ceramic heating rods, which increases the cost on the one hand, and on the other hand, the isolation setting increases the internal energy of the heating body itself, and the isolation structure itself needs to be heated before the water flow can be heated, such as the ceramic heating rod needs to heat the ceramic before the water body can be heated. If the isolation structure is not well set or the structure is damaged, such as the ceramic heating rod is damaged, there will be a risk of leakage. Utility Model Content

[0004] The utility model provides a toilet heater, which can effectively solve the above problems.

[0005] The utility model is achieved in this way:

[0006] A toilet heater comprises a mounting shell, a semi-circular heating tube arranged on the edge thereof, a heating inlet and a heating outlet on the end face, and a merging cavity arranged on the cover side between the heating tubes, wherein the mounting shell is "D"-shaped or square-shaped, and the corresponding heating tube is "U"-shaped or "concave"-shaped; the merging cavity is provided with a water inlet hole and a water outlet hole at the arc-shaped end thereof, and a pressure stabilizing hole at the opposite end; a pressure stabilizing groove is provided on the outer side of the mounting shell of the pressure stabilizing hole; a water inlet pipe is provided between the pressure stabilizing groove and the heating inlet, a water outlet pipe is provided between the heating outlet and the merging cavity, and the cover sides of the pipelines on both sides of the heating tube are respectively provided with A temperature control slot hole, a temperature sensing hole is provided on the installation shell corresponding to the water outlet pipe or the confluence cavity; a pressure stabilizing valve is provided in the pressure stabilizing slot, and a pressure stabilizing cover is provided to be fixed to the installation shell, a heating wire is provided in the heating tube, and a thermostat is respectively installed in the temperature control slot hole, and an NTC is provided in the temperature sensing hole; an upper cover is provided on the cover side of the installation shell, and the upper cover is provided with a water inlet and a water outlet corresponding to the water inlet hole and the water outlet hole, the water inlet is connected with the water inlet hole, and the water outlet is connected with the water outlet pipe through the confluence cavity; an end cover is provided on the end face of the installation shell to cover it, and form a water inlet cavity and a water outlet cavity isolated from each other with the heating inlet and the heating outlet.

[0007] As a further improvement, the thermostat on the water inlet chamber side is a manual reset thermostat, and the thermostat on the water outlet chamber side is a self-reset thermostat; the water inlet chamber and the water outlet chamber are respectively provided with a positive terminal and a negative terminal that pass through the mounting shell, and the manual reset thermostat, the positive terminal, the heating wire, the negative terminal and the self-reset thermostat are electrically connected in series in sequence.

[0008] As a further improvement, a first grounding hole is provided between the upper cover relative to the water outlet hole and the pressure stabilizing hole, a second grounding hole is provided near the end of the water outlet pipe near the confluence cavity, and a first grounding column and a second grounding column are respectively provided in the first grounding hole and the second grounding hole; the temperature sensing hole is provided at the water outlet pipe mouth of the confluence cavity.

[0009] As a further improvement, the first grounding column is installed by passing through the first grounding hole on the inner side of the upper cover, the second grounding column is installed by passing through the second grounding hole on the outer side of the mounting shell, and the temperature sensor is installed by passing through the temperature sensing hole on the outer side of the mounting shell; the voltage stabilizing cover is provided with an extension plate extending to the second grounding column and the temperature sensor, the outer end of the second grounding column abuts against the extension plate, the front end of the extension plate is provided with a temperature sensing clip, and the outer end of the temperature sensor is arranged in the temperature sensing clip; a reinforcing plate extending to the extension plate is provided at the center of the outer side of the voltage stabilizing cover.

[0010] As a further improvement, water holes are provided at the front ends of the first grounding column and the second grounding column.

[0011] As a further improvement, the heating tube is arranged as a tube groove away from the end surface section, and the upper cover is provided with a groove convex corresponding to the tube groove.

[0012] As a further improvement, a valve cavity is provided at the arc-shaped end of the merging cavity, a switching water diversion valve is provided in the valve cavity, and the upper cover is provided with a water inlet interface and a water diversion interface corresponding to the switching water diversion valve.

[0013] As a further improvement, the switching water diverter valve is provided with a static valve plate, a dynamic valve plate, a linkage plate and a valve motor, the static valve plate, the dynamic valve plate and the linkage plate are stacked in sequence in the valve cavity, the static valve plate is engaged in the valve cavity, the central part of the static valve plate is provided with a relatively distributed water inlet hole and a drainage hole, the drainage hole is provided with a first drainage groove extending to the side away from the end of the dynamic valve plate, the drainage hole is provided with a second drainage groove near the end of the dynamic valve plate, the dynamic valve plate is provided with a third drainage groove corresponding to the second drainage groove near the static valve plate, and the third drainage groove When the groove is connected with the water inlet hole and the third drainage groove at the same time, water inlet is achieved; the water inlet hole and the outer circle of the drainage hole of the static valve plate are spaced apart with water diversion holes, and the side of the movable valve plate is provided with a water diversion notch, and the water diversion notch is connected with the water diversion holes in sequence through the rotation of the movable valve plate; the water inlet hole is connected with the water inlet interface, the water diversion hole is correspondingly connected with the water diversion interface, and the first drainage groove is connected with the pressure stabilizing hole; the linkage plate is clamped with the movable valve plate, the mounting shell is provided with a valve hole corresponding to the valve cavity, and the valve motor passes through the valve hole and is plugged and fixed with the linkage plate.

[0014] As a further improvement, the static valve plate and the dynamic valve plate are both ceramic plates; the second drainage groove and the third drainage groove are crescent-shaped, arc-shaped or fan-shaped; a water diversion groove is provided corresponding to the side of the water diversion hole near the dynamic valve plate, and the water diversion groove is square, circular, arc-shaped or fan-shaped, and the opening size of the arc-shaped water diversion groove is gradually set along the circumferential direction.

[0015] As a further improvement, the valve hole is provided with a boss, the boss is divided into water seepage grooves on the circumference, and the valve motor is installed on the boss.

[0016] The beneficial effects of the utility model are as follows: 1) the utility model optimizes the structural layout of the pressure regulating valve, heating wire, thermostat, temperature sensor, water inlet and outlet holes, etc., so that they can be integrated and installed on the installation shell, and can be quickly sealed and installed through the upper cover, end cover and pressure regulating cover, thereby forming an independent heater. There is no need for hose connection between the functional modules, which simplifies the water path. It has the advantages of comprehensive functions, high integration, compact structure, small size, not easy to leak, convenient assembly and maintenance, and low cost;

[0017] 2) The pipeline distribution consists of a heating pipe surrounding the mounting shell and a water inlet pipe and a water outlet pipe located in the middle, so that the water flows in from the center and is divided when it flows back to the center, further improving the compactness of the structure; the peripheral heating pipe forms a continuous heating channel and extends the heating length to the maximum extent possible. The heating wire is distributed inside, and the two ends of the heating pipe form wiring terminals. The heating wire directly contacts the water and can directly heat the water flow in the pipe, with high heating efficiency and fast temperature control speed; and the water inlet pipe at the front end of the heating pipe and the water outlet pipe at the rear end form a good anti-electric wall at the front and rear ends;

[0018] 3) A dual-temperature controller design is adopted in the heating pipeline, with a manual reset thermostat at the water inlet and a self-reset thermostat at the water outlet to achieve better safety control;

[0019] 4) The temperature sensor is set far away from the wiring terminal and closer to the water outlet, so the temperature control is more accurate and the damage to the NTC caused by being too close to the strong electricity of the heating wire is avoided;

[0020] 5) Grounding is set at the water inlet and outlet respectively to better protect equipment and people; the front end of the grounding column adopts a water hole design to allow water to flow through the water hole to achieve a better grounding effect;

[0021] 6) By integrating the switching water diverter valve into the heater, water flows into the valve body and finally flows back to the valve body for diversion, which not only realizes the water diversion function, but also acts as an open and close switching valve. There is no need to add a control valve, avoid setting up a switching valve and a water diverter valve separately, further simplifying the structure, making the product more compact and diversified in functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram provided by an embodiment of a toilet heater of the utility model;

[0024] Figure 2 This is an exploded view of an embodiment of a toilet heater provided by the utility model;

[0025] Figure 3 It is another exploded view provided by an embodiment of a toilet heater of the utility model;

[0026] Figure 4It is a structural schematic diagram of another embodiment of a toilet heater of the utility model;

[0027] Figure 5 It is another structural schematic diagram provided by another embodiment of a toilet heater of the utility model;

[0028] Figure 6 This is an exploded view of another embodiment of a toilet heater of the utility model;

[0029] Figure 7 This is another exploded view provided by another embodiment of a toilet heater of the utility model;

[0030] Figure 8 It is a cross-sectional view taken at AA provided by another embodiment of a toilet heater of the utility model;

[0031] Fig. 9 It is a cross-sectional view at BB provided by another embodiment of a toilet heater of the utility model;

[0032] Fig.10 It is a cross-sectional view of CC provided by another embodiment of a toilet heater of the utility model;

[0033] Fig.11 It is a partial structural schematic diagram of another embodiment of a toilet heater of the utility model;

[0034] Fig.12 It is a schematic diagram of the internal structure of another embodiment of a toilet heater of the utility model;

[0035] Fig.13 It is an exploded view of a water diversion valve provided by a toilet heater embodiment of the utility model;

[0036] Fig.14 It is another exploded view of a water diversion valve provided by a toilet heater embodiment of the utility model;

[0037] Fig.15 It is a structural schematic diagram of a switching water diversion valve provided by an embodiment of a toilet heater of the utility model;

[0038] Fig.16 This is a schematic diagram of electrical connection of a heating wire provided in another embodiment of a toilet heater of the utility model.

[0039] Reference numerals:

[0040] Installation shell 1; heating tube 10; tube groove 101; end surface 11; heating inlet 12; heating outlet 13; confluence cavity 14; water inlet hole 141; water outlet hole 142; pressure stabilizing hole 143; pressure stabilizing groove 144; valve cavity 145; valve hole 146; boss 147; water seepage groove 148; water inlet pipe 15; water outlet pipe 16; temperature control slot hole 17; temperature sensing hole 18; second grounding hole 19; second grounding column 191; pressure stabilizing valve 2; pressure stabilizing cover 21; extension plate 22; temperature sensing clip 23; reinforcement plate 24; heating wire 3; positive terminal 31; negative terminal 32; coil spring structure 33; thermostat 4; manual reset thermostat 4 1; self-resetting thermostat 42; temperature sensor 5; upper cover 6; water inlet 61; water outlet 62; first grounding hole 63; first grounding column 631; water hole 632; groove convex 64; water inlet interface 65; water distribution interface 66; end cover 7; water inlet cavity 71; water outlet cavity 72; switching water distribution valve 8; static valve plate 81; water inlet hole 811; drainage hole 812; first drainage groove 813; second drainage groove 814; water distribution hole 815; water distribution groove 816; arc-shaped water distribution groove 817; moving valve plate 82; third drainage groove 821; water distribution gap 822; linkage plate 83; valve motor 84; waterproof sealing ring or sealing gasket 9. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0042] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] In the description of the present invention, the terms "covering side", "inner side", "end face", "the other end", "outer side", "inside", "middle", "central part", "end", "side", "side", "outside", "inside", "front end", "between", "circumferential" and the like indicate orientations or positional relationships 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] Reference Figure 1-16 As shown, a toilet heater comprises a mounting shell 1 and a semi-circular heating tube 10 arranged on its edge and a heating inlet 12 and a heating outlet 13 on the end surface 11, and a merging chamber 14 arranged on the covering side between the heating tubes 10. The mounting shell 1 is "D"-shaped or square-shaped, corresponding to the heating tube 10 being "U"-shaped or "concave"-shaped; the merging chamber 14 is provided with a water inlet hole 141 and a water outlet hole 142 at the arc-shaped end thereof, and a pressure stabilizing hole 143 at the opposite end; a pressure stabilizing groove 144 is provided on the outer side of the mounting shell 1 of the pressure stabilizing hole 143; a water inlet pipe 15 is provided between the pressure stabilizing groove 144 and the heating inlet 12, a water outlet pipe 16 is provided between the heating outlet 13 and the merging chamber 14, and temperature control slots 17 are provided on the covering sides of the pipelines on both sides of the heating tube 10, respectively. A temperature sensing hole 18 is provided on the mounting shell 1 corresponding to the water outlet pipe 16 or the merging chamber 14; a pressure stabilizing valve 2 is provided in the pressure stabilizing groove 144, and a pressure stabilizing cover 21 is provided to be fixed to the mounting shell 1; a heating wire 3 is provided in the heating tube 10, and a thermostat 4 is respectively installed in the temperature control groove hole 17, and an NTC is provided in the temperature sensing hole 18, and the NTC is a temperature sensor 5; an upper cover 6 is provided on the covering side of the mounting shell 1, and the upper cover 6 is provided with a water inlet 61 and a water outlet 62 corresponding to the water inlet hole 141 and the water outlet hole 142, the water inlet 61 is connected with the water inlet hole 141, and the water outlet 62 is connected with the water outlet pipe 16 through the merging chamber 14; an end cover 7 is provided on the end face 11 of the mounting shell 1 to cover it, and to form a water inlet cavity 71 and a water outlet cavity 72 isolated from each other with the heating inlet 12 and the heating outlet 13.

[0045] The present application integrates the pressure regulating valve 2, the heating wire 3, the thermostat 4, and the temperature sensor 5 on the mounting shell 1, and adopts the upper cover 6, the end cover 7, and the pressure regulating cover 21 to realize the sealing assembly of the mounting shell 1. The heating tube 10 surrounding the edge of the mounting shell 1 allows the heating wire 3 to form a heating length as long as possible in the mounting shell 1, and the water flow is fully heated in the heating tube 10, which reduces the power of the heating wire 3 and reduces the manufacturing and use costs; and the mounting end surface 11 at the plane end of the mounting shell 1 forms a heating inlet 12 and a heating outlet 13, which is convenient for the installation and connection of the heating wire 3 with the terminal, and the water flow in and out is concentrated in the middle of the heating tube 10 through the water inlet pipe 15 and the water outlet pipe 16, making the device more compact; the design of the mounting shell 1, the upper cover 6, the end cover 7, and the pressure regulating cover 21 has few shell components, and each component is easy to mold and low in cost.

[0046] The “U”-shaped or “concave”-shaped heating tube 10 forms a semi-annular structure at the edge of the “D”-shaped or square-shaped mounting shell 1 , and the semi-annular structure forms the inlet and outlet end faces of the heating tube 10 on the other side.

[0047] The water inlet hole 141 and the water outlet hole 142 are arranged in the middle of the heating tube 10, and the water inlet pipe 15 and the water outlet pipe 16 are arranged on both sides of the water inlet hole 141 and the water outlet hole 142, forming an inlet and outlet water loop with a compact structural design.

[0048] The water inlet cavity 71 and the water outlet cavity 72 are formed in the end cover 7 or the end surface 11 of the mounting shell 1, or are formed by both; if the water inlet cavity 71 and the water outlet cavity 72 are formed by the end surface 11 of the mounting shell 1, the end cover 7 can be a flat cover plate.

[0049] The pressure-stabilizing valve 2 controls the opening of the opening and closing parts in the valve body to adjust the flow of the medium, thereby reducing the pressure of the medium. At the same time, it uses the pressure behind the valve to adjust the opening of the opening and closing parts, so that the pressure behind the valve is maintained within a certain range. When the inlet pressure is constantly changing, the outlet pressure is maintained within the set range to protect the subsequent life and production equipment.

[0050] The use of the heating wire 3 as a heating device is not only low in cost and easy to install, but also directly contacts the water, with low heating internal energy. The heating wire 34 heats up and directly heats the water, with high heating efficiency and faster temperature control. Since the present application uses the heating wire 3, which directly passes through the water, it is easy to cause the water to be electrified, so the present application specially sets the water inlet pipe 15 and the water outlet pipe 16 as anti-electricity walls before and after the heating tube 10.

[0051] Furthermore, the thermostat 4 on the water inlet chamber 71 side is a manual reset thermostat 41, and the thermostat 4 on the water outlet chamber 72 side is a self-reset thermostat 42; the water inlet chamber 71 and the water outlet chamber 72 are respectively provided with a positive terminal 31 and a negative terminal 32 that penetrate the mounting shell 1, and the manual reset thermostat 41, the positive terminal 31, the heating wire 3, the negative terminal 32 and the self-reset thermostat 42 are electrically connected in series in sequence.

[0052] The dual thermostat 4 design is adopted to achieve safer control. A manual reset thermostat 41 is set on the side of the water inlet chamber 71, and a self-reset thermostat 42 is set on the side of the water outlet chamber 72 to achieve better temperature control. The self-reset thermostat 42 is set at the water outlet to accurately control the outlet water temperature to avoid the outlet water temperature being too high. The manual reset thermostat 41 is to ensure that the power can be cut off in the event of failure of the self-reset thermostat 42. When the temperature at the water inlet is too high, it means that the temperature has been out of control and it is necessary to cut off. The overall design is more reasonable.

[0053] Furthermore, the upper cover 6 is provided with a first grounding hole 63 between the water outlet hole 142 and the pressure stabilizing hole 143, the water outlet pipe 16 is provided with a second grounding hole 19 near the end of the confluence cavity 14, and the first grounding hole 63 and the second grounding hole 19 are respectively provided with a first grounding column 631 and a second grounding column 191; the temperature sensing hole 18 is provided at the outlet of the water outlet pipe 16 of the confluence cavity 14.

[0054] The grounding is set at the water inlet and outlet to achieve grounding at both ends, which better protects equipment and personal safety. The temperature sensor 5 is set at the outlet of the water pipe 16, which is closer to the water outlet, and the temperature detection is more accurate. At the same time, the temperature sensor 5 is relatively insulated from the strong electricity of the heating wire 3 to avoid damage to the temperature sensor 5.

[0055] Furthermore, the first grounding column 631 is installed by penetrating the first grounding hole 63 from the inner side of the upper cover 6, the second grounding column 191 is installed by penetrating the second grounding hole 19 from the outer side of the mounting shell 1, and the temperature sensor 5 is installed by penetrating the temperature sensing hole 18 from the outer side of the mounting shell 1; the voltage stabilizing cover 21 is provided with an extension plate 22 extending to the second grounding column 191 and the temperature sensor 5, the outer end of the second grounding column 191 abuts against the extension plate 22, the front end of the extension plate 22 is provided with a temperature sensing clip 23, and the outer end of the temperature sensor 5 is arranged in the temperature sensing clip 23; the outer center of the voltage stabilizing cover 21 is provided with a reinforcing plate 24 extending to the extension plate 22.

[0056] Due to the positional relationship, the second grounding column 191 and the temperature sensor 5 need to be inserted from the outside of the installation shell 1 into the water outlet pipe 16 and the confluence cavity 14, so an extension plate 22 and a temperature sensing clip 23 need to be provided for fixing. The provision of the reinforcing plate 24 can enhance the strength of the temperature sensing clip 23, and can extend the installation space of the pressure regulating valve 2 outward, thereby reducing the internal installation space.

[0057] Furthermore, water holes 632 are provided at the front ends of the first grounding column 631 and the second grounding column 191 .

[0058] The front end of the grounding column adopts a water hole 632 design, and water flows through the copper hole, which has a better grounding effect.

[0059] Furthermore, the heating tube 10 is provided with a tube groove 101 away from the end surface 11, and the upper cover 6 is provided with a groove convex 64 corresponding to the tube groove 101; the two ends of the heating wire 3 are fixedly connected or directly welded to the positive electrode terminal 31 and the negative electrode terminal 32 through sleeves.

[0060] The arc section of the "U"-shaped heating tube 10 or the horizontal section connecting the pipelines on both sides adopts the tube groove 101 to expose the heating wire 3 to the outside, so as to facilitate the assembly of the heating wire 3 into the heating tube 10. It can be extended from the tube groove 101 to both ends for installation, or it can be extended from one end and then assisted by the tube groove 101 to penetrate to the other end. The heating wire 3 can be pressed by the groove 64 on the upper cover 6 to prevent the heating wire 3 from moving under the action of water flow. Since the tube groove 101 is at a certain angle with the heating tubes 10 on both sides, it is not conducive to mold opening and demolding. The setting of the tube groove 101 facilitates mold opening and molding, and reduces mold opening and manufacturing costs.

[0061] Furthermore, a valve cavity 145 is provided at the arc-shaped end of the merging cavity 14 , a switching water diversion valve 8 is provided in the valve cavity 145 , and the upper cover 6 is provided with a water inlet interface 65 and a water diversion interface 66 corresponding to the switching water diversion valve 8 .

[0062] Furthermore, the switching water diverter valve 8 is provided with a static valve plate 81, a dynamic valve plate 82, a linkage plate 83 and a valve motor 84. The static valve plate 81, the dynamic valve plate 82 and the linkage plate 83 are stacked in sequence in the valve cavity 145. The static valve plate 81 is engaged in the valve cavity 145. The central part of the static valve plate 81 is provided with a relatively distributed water inlet hole 811 and a drainage hole 812. The drainage hole 812 is provided with a first drainage groove 813 extending to the side at the end away from the dynamic valve plate 82. The drainage hole 812 is provided with a second drainage groove 814 at the end near the dynamic valve plate 82. The side of the dynamic valve plate 82 near the static valve plate 81 is provided with a third drainage groove 821 corresponding to the second drainage groove 814. The third drainage groove 821 is connected to the water inlet hole 811 and the drainage hole 812 is connected to the water inlet hole 811. Water inlet is achieved when the hole 811 and the third drainage groove 821 are connected at the same time; the water inlet hole 811 and the drainage hole 812 of the static valve plate 81 are spaced apart on the outer circle with water diversion holes 815, and the side of the movable valve plate 82 is provided with a water diversion notch 822, and the water diversion notch 822 is connected with the water diversion holes 815 in sequence through the rotation of the movable valve plate 82; the water inlet hole 811 is connected with the water inlet interface 65, the water diversion hole 815 is correspondingly connected with the water diversion interface 66, and the first drainage groove 813 is connected with the pressure stabilizing hole 143; the linkage plate 83 is clamped with the movable valve plate 82, and the mounting shell 1 is provided with a valve hole 146 corresponding to the valve cavity 145, and the valve motor 84 passes through the valve hole 146 and is plugged and fixed with the linkage plate 83.

[0063] The present application integrates the switching valve and the water diverting valve into the switching water diverting valve 8, and realizes the opening and closing of the water circuit and the water diversion synchronously through the valve motor 84, thereby reducing the number of valve bodies, making the device more compact and reducing the cost.

[0064] The water diversion hole 815 can be provided with holes for buttocks washing, women's washing, foam shield, air filling, etc.

[0065] Furthermore, the static valve plate 81 and the dynamic valve plate 82 are both ceramic plates; the second drainage groove 814 and the third drainage groove 821 are crescent-shaped, arc-shaped or fan-shaped; the water diversion hole 815 is provided with a corresponding water diversion groove 816 on the side close to the dynamic valve plate 82, and the water diversion groove 816 is square, circular, arc-shaped or fan-shaped, and the opening size of the arc-shaped water diversion groove 817 is gradually set along the circumferential direction.

[0066] Ceramic plates are used as static and dynamic water-dividing plates to improve control accuracy, avoid water leakage, and increase the number of switches to 500,000 times, thereby extending the service life of the equipment.

[0067] The water diversion groove 816 can be designed to have the same shape or different shapes. The opening size of the arc-shaped water diversion groove 816 is gradually set along the circumferential direction, so that the water flow size can be controlled. When the water diversion gap 822 coincides with the small end of the arc-shaped water diversion groove 816, the water flow is small, and the water flow becomes larger as it moves toward the larger opening end, thereby achieving flow control.

[0068] Furthermore, the valve hole 146 is provided with a boss 147 , and the boss 147 is divided into water seepage grooves 148 in the circumference, and the valve motor 84 is installed on the boss 147 .

[0069] The seepage groove 148 can discharge the water seeping out of the hole of the water distribution groove 816 to prevent it from entering the valve motor 84 and causing damage.

[0070] In the present application, the combining cavity 14, the water inlet hole 141, the valve cavity 145, the valve hole 146, the pressure stabilizing hole 143, the pressure stabilizing groove 144, the temperature control groove hole 17, the temperature sensing hole 18, the water dividing hole 815, the positive electrode terminal 31, the negative electrode terminal 32, the first grounding hole 63, the second grounding hole 19, and the pipe groove 101 are respectively provided with waterproof sealing rings or sealing gaskets 9 of corresponding shapes.

[0071] When working, water flows from the water inlet 61 into the water inlet hole 141, and flows into the water outlet hole 142 (or the water inlet interface 65 enters the water inlet hole 811, and the third drainage groove 821 is connected to the water inlet hole 811 and the third drainage groove 821 at the same time to achieve water inflow, and the water flow is closed when they are not connected at the same time; the water in the water inlet hole 811 flows through the third drainage groove 821, the second drainage groove 814, and the first drainage groove 813), and the outflowing water flows through the water hole 631 of the first grounding column 631. 32, and then enter the pressure-stabilizing hole 143, and after being stabilized by the pressure-stabilizing valve 2, enter the water inlet pipe 15 from the side of the pressure-stabilizing groove 144, flow to the water inlet cavity 71, and then enter the heating tube 10 from the heating inlet 12, and heat the water body through the heating wire 3. The water temperature of the heating tube 10 is safely controlled by the manual reset thermostat 41 and the self-reset thermostat 42 in the temperature control slot hole 17; the heated water flows from the heating outlet 13 to the water outlet cavity 72, Then the water is transferred from the water outlet chamber 72 to the water outlet pipe 16, and the water flows through the water hole 632 of the second grounding column 191 for grounding treatment; the water flows to the confluence chamber 14 again, and the water temperature is monitored by the temperature sensor 5 arranged at the mouth of the water outlet pipe 16, so as to control the heating wire 3 to adjust the water temperature; the water with precise control temperature reaches the confluence chamber 14 outside the water inlet hole 141 and the water outlet hole 142 from the water outlet pipe 16 (or enters through the water diversion gap 822, and the water diversion gap 822 is controlled by the valve motor 84 to align with the corresponding water diversion hole 815. When the water diversion groove 816 is a gradual structure, the flow rate can be controlled by adjusting the rotation angle by the valve motor 84, so as to realize water outlet with different functions, such as buttock washing, women's washing, foam shield, aeration and the like; the water entering the water diversion groove 816 reaches the water diversion hole 815, and then reaches the water diversion interface 66 from the water diversion hole 815, and finally the water diversion interface 66 is connected to different components through pipelines), and is discharged into the component through the water outlet 62.

[0072] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A toilet heater, characterized in that: It includes a mounting shell, a semi-circular heating tube arranged on its edge, a heating inlet and a heating outlet on the end face, and a merging cavity arranged on the cover side between the semi-circular heating tubes. The mounting shell is "D"-shaped or square-shaped, and the corresponding heating tube is "U"-shaped or "concave"-shaped; the merging cavity is provided with a water inlet hole and a water outlet hole near the arc end, and a pressure stabilizing hole is provided at the opposite end. A pressure stabilizing groove is provided on the outer side of the mounting shell of the pressure stabilizing hole. A water inlet pipe is provided between the pressure stabilizing groove and the heating inlet, and a water outlet pipe is provided between the heating outlet and the merging cavity. The cover side of the pipelines on both sides of the heating tube is respectively provided with temperature control grooves Hole, the installation shell is provided with a temperature sensing hole corresponding to the water outlet pipe or the confluence cavity; the pressure stabilizing tank is provided with a pressure stabilizing valve, and a pressure stabilizing cover is provided to be fixed to the installation shell, a heating wire is provided in the heating tube, and thermostats are respectively installed in the temperature control tank holes, and an NTC is provided in the temperature sensing hole; the installation shell is provided with an upper cover on the cover side, and the upper cover is provided with a water inlet and a water outlet corresponding to the water inlet hole and the water outlet hole, the water inlet is connected with the water inlet hole, and the water outlet is connected with the water outlet pipe through the confluence cavity; the end face of the installation shell is provided with an end cover to cover it, and form a water inlet cavity and a water outlet cavity isolated from each other with the heating inlet and the heating outlet.

2. A toilet heater according to claim 1, characterized in that: The thermostat on the water inlet chamber side is a manual reset thermostat, and the thermostat on the water outlet chamber side is a self-reset thermostat; the water inlet chamber and the water outlet chamber of the heating tube are respectively provided with a positive electrode terminal and a negative electrode terminal that penetrate the mounting shell, and the manual reset thermostat, the positive electrode terminal, the heating wire, the negative electrode terminal and the self-reset thermostat are electrically connected in series in sequence.

3. A toilet heater according to claim 1, characterized in that: A first grounding hole is provided between the upper cover and the water outlet hole and the pressure stabilizing hole, a second grounding hole is provided near the end of the water outlet pipe near the confluence cavity, and a first grounding column and a second grounding column are provided in the first grounding hole and the second grounding hole respectively; the temperature sensing hole is provided at the water outlet of the confluence cavity.

4. A toilet heater according to claim 3, characterized in that: The first grounding column is installed by passing through the first grounding hole on the inner side of the upper cover, the second grounding column is installed by passing through the second grounding hole on the outer side of the mounting shell, and the temperature sensor is installed by passing through the temperature sensing hole on the outer side of the mounting shell; the voltage stabilizing cover is provided with an extension plate extending to the second grounding column and the temperature sensor, the outer end of the second grounding column abuts against the extension plate, a temperature sensing clip is provided at the front end of the extension plate, and the outer end of the temperature sensor is arranged in the temperature sensing clip; a reinforcing plate extending to the extension plate is provided at the center of the outer side of the voltage stabilizing cover.

5. A toilet heater according to claim 3 or 4, characterized in that: Water holes are provided at the front ends of the first grounding column and the second grounding column.

6. A toilet heater according to claim 1 or 2, characterized in that: The heating tube is arranged as a tube groove away from the end surface section, and the upper cover is provided with a groove convex corresponding to the tube groove.

7. A toilet heater according to claim 1 or 3, characterized in that: A valve cavity is provided at the arc-shaped end of the merging cavity, a switching water diversion valve is provided in the valve cavity, and a water inlet interface and a water diversion interface are provided on the upper cover corresponding to the switching water diversion valve.

8. A toilet heater according to claim 7, characterized in that: The switching water-dividing valve is provided with a static valve plate, a dynamic valve plate, a linkage plate and a valve motor. The static valve plate, the dynamic valve plate and the linkage plate are sequentially stacked in the valve cavity. The static valve plate is engaged in the valve cavity. The central part of the static valve plate is provided with a relatively distributed water inlet hole and a drain hole. The drain hole is provided with a first drain groove extending to the side at the end away from the dynamic valve plate, and a second drain groove is provided at the end of the drain hole near the dynamic valve plate. The side of the dynamic valve plate near the static valve plate is provided with a third drain groove corresponding to the second drain groove. When the third drain groove is connected with the water inlet hole and the third drain groove at the same time, water can be inletted; the outer circles of the water inlet hole and the drain hole of the static valve plate are spaced with water-dividing holes, and the side of the dynamic valve plate is provided with a water-dividing notch. The water-dividing notch is sequentially connected with the water-dividing holes through the rotation of the dynamic valve plate; the water inlet hole is connected with the water inlet interface, the water-dividing hole is correspondingly connected with the water-dividing interface, and the first drain groove is connected with the pressure-stabilizing hole; the linkage plate is engaged with the dynamic valve plate, the mounting shell is provided with a valve hole corresponding to the valve cavity, and the valve motor passes through the valve hole and is plugged and fixed with the linkage plate.

9. A toilet heater according to claim 8, characterized in that: The static valve plate and the dynamic valve plate are both ceramic plates; the second drainage groove and the third drainage groove are crescent-shaped, arc-shaped or fan-shaped; a water diversion groove is provided corresponding to the side of the water diversion hole close to the dynamic valve plate, and the water diversion groove is square, circular, arc-shaped or fan-shaped, and the opening size of the arc-shaped water diversion groove is gradually set along the circumferential direction.

10. A toilet heater according to claim 8, characterized in that: The valve hole is provided with a boss, the boss is divided into water seepage grooves in the circumference, and the valve motor is installed on the boss.

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