Intelligent closestool and foam device thereof

Abstract

The utility model provides an intelligent closestool and its foam device, the foam device includes body and infusion pump, the body has liquid storage chamber, primary mixing chamber, secondary mixing chamber, liquid storage chamber has liquid feed port, liquid storage chamber liquid outlet, the primary mixing chamber has primary liquid inlet, the secondary mixing chamber has water inlet and secondary liquid outlet, the liquid feed port has liquid feed port, the liquid feed port has liquid feed port, the secondary mixing chamber has water inlet and secondary liquid outlet, the liquid feed port has liquid feed port, the liquid feed port has liquid feed port, and the liquid feed port has liquid feed port. Foaming liquid in the liquid storage cavity is pumped to the first-stage liquid inlet through the liquid pump, and the first-stage mixing cavity and the second-stage mixing cavity are communicated through a dilution hole. The foaming device can effectively improve the foaming effect and increase the foaming frequency, and is simple in structure.

Description

Technical Field

[0001] The utility model relates to a foam device for a smart toilet and a smart toilet with the foam device. Background Art

[0002] In the existing smart toilet with a foaming device, a large amount of foam is generated by the foaming device to cover the water surface of the toilet bowl, effectively solving the problems of excrement falling and splashing liquid and odor emission.

[0003] The existing foaming device of a smart toilet generally includes a liquid storage cavity for storing a foaming liquid, a mixing cavity for diluting the foaming liquid, and the liquid flowing out of the mixing cavity is mixed with air to obtain foam. However, generally only one mixing cavity is provided in the existing mixing cavity, resulting in low utilization rate of the foaming liquid in the mixing cavity and room for improvement in the number of foaming times. Summary of the Utility Model

[0004] To solve the above technical problems, one of the purposes of the utility model is to provide a foam device for a smart toilet, which can effectively improve the foaming effect, increase the number of foaming times, and has a simple structure.

[0005] Another purpose of the utility model is to provide a smart toilet with a foam device.

[0006] To achieve the above purposes, the technical solution adopted by the utility model is as follows:

[0007] A foam device for a smart toilet includes a body and a liquid pumping pump. The body has a liquid storage cavity, a primary mixing cavity, and a secondary mixing cavity. The liquid storage cavity has a liquid adding port and a liquid outlet of the liquid storage cavity. The primary mixing cavity has a primary liquid inlet. The secondary mixing cavity has a water inlet and a secondary liquid outlet. The foaming liquid in the liquid storage cavity is pumped to the primary liquid inlet through the liquid pumping pump, and the primary mixing cavity and the secondary mixing cavity are connected through dilution holes.

[0008] Preferably, at least two dilution holes are provided.

[0009] Preferably, the liquid pumping pump is fixedly installed on the body. The liquid outlet of the liquid storage cavity is connected to the inlet of the liquid pumping pump through a first connecting pipe, and the outlet of the liquid pumping pump is connected to the primary liquid inlet through a second connecting pipe.

[0010] Preferably, the bottom wall of the body is provided with a concave cavity, and the liquid pumping pump is fixedly installed in the concave cavity.

[0011] Preferably, the secondary mixing cavity and the primary mixing cavity are arranged side by side vertically, separated by a partition plate therebetween. The dilution holes are provided on the partition plate, and the liquid storage cavity surrounds the secondary mixing cavity and the primary mixing cavity.

[0012] Preferably, the volumes of the primary mixing chamber and the secondary mixing chamber are the same.

[0013] Preferably, an overflow port is further provided at the top of the liquid storage chamber.

[0014] Preferably, a liquid level sensor is further provided at the top of the liquid storage chamber for sensing the liquid level in the liquid storage chamber.

[0015] Preferably, the main body includes a main body with an open top end and an upper cover covering the open top end. The liquid storage chamber, the primary mixing chamber, and the secondary mixing chamber are formed inside the main body. The liquid filling port, the water inlet, and the secondary liquid outlet are all provided on the upper cover, and the liquid outlet of the liquid storage chamber and the primary liquid inlet are provided on the bottom wall of the main body.

[0016] In addition, the present utility model further provides an intelligent toilet, including a water supply valve, a control unit, and a foaming head. The foaming head is arranged facing the toilet bowl, and further includes the foam device according to any one of the above. The water inlet is communicated with the water supply valve, the secondary liquid outlet is communicated with the foaming head, and the control unit controls the opening and closing of the water supply valve and the liquid pumping pump.

[0017] Compared with the prior art, the present utility model at least has the following beneficial effects:

[0018] By providing a primary mixing chamber and a secondary mixing chamber, the primary mixing chamber has a primary liquid inlet, the secondary mixing chamber has a water inlet and a secondary liquid outlet, and the primary mixing chamber and the secondary mixing chamber are connected through a dilution hole, so as to achieve two-stage mixing. Compared with the prior art solution with only one-stage mixing and dilution, the present utility model adopts a two-stage mixing and dilution setting, which can slow down the speed of the concentration decrease of the foaming liquid in the mixing chamber, avoid the problem that the liquid outlet concentration in the mixing chamber is high in the early stage and significantly decreases in the later stage, and the liquid outlet concentration decreases rapidly, resulting in fewer foaming times. By adopting the technical solution of the present utility model, the foaming liquid in the primary mixing chamber can be slowly diluted through the secondary mixing chamber. On the one hand, it can make the concentration decrease of the liquid outlet of the mixing chamber slower each time, and the foaming effect is relatively equivalent each time, and there will be no situation that the foaming amount of the foaming liquid pumped into the primary mixing chamber by the liquid pumping pump each time significantly decreases as the number of foaming times (the foaming liquid pumped by the liquid pumping pump once can be foamed multiple times) increases; on the other hand, it can extend the number of foaming times on the basis of ensuring the foaming amount, improve the utilization rate of the foaming liquid, save the use cost of the foaming liquid, and have a good foaming effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present utility model, and constitute a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0020] Among them:

[0021] Figure 1 is a schematic diagram of the three-dimensional assembled structure of the foam device according to an embodiment of the present utility model;

[0022] Figure 2 is a schematic diagram of the three-dimensional exploded structure of the foam device according to an embodiment of the present utility model;

[0023] Figure 3 is a cross-sectional view of the foam device according to an embodiment of the present utility model;

[0024] Figure 4 is a three-dimensional cross-sectional view of the foam device according to an embodiment of the present utility model;

[0025] Figure 5 is a schematic diagram of the liquid adding process of the foam device according to an embodiment of the present utility model;

[0026] Figure 6 is a schematic diagram of the liquid pumping process of the foam device according to an embodiment of the present utility model;

[0027] Figure 7 is a schematic diagram of the foaming process of the foam device according to an embodiment of the present utility model.

[0028] The reference numerals in the figure are as follows:

[0029] 10 - main body; 11 - liquid storage cavity; 111 - liquid adding port; 112 - liquid outlet of the liquid storage cavity; 113 - overflow port; 12 - primary mixing cavity; 121 - primary liquid inlet; 13 - secondary mixing cavity; 131 - water inlet; 132 - secondary liquid outlet; 14 - dilution hole; 15 - concave cavity; 16 - partition board; 17 - main body; 18 - upper cover; 20 - liquid pumping pump; 21 - first connecting pipe; 22 - second connecting pipe; 30 - liquid level sensor; 40 - foaming head. Specific embodiments

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0031] In the following discussion, details are given to provide a more thorough understanding of the present utility model. However, those skilled in the art can understand that the present utility model can be implemented without one or more of these details. In specific examples, in order to avoid confusion with the present utility model, some technical features well-known in the art are not described in detail. It should be noted that the terms "upper", "lower", "front", "rear", "left", "right" and similar expressions used herein are for illustrative purposes only and are not restrictive.

[0032] The ordinal numbers such as "first" and "second" cited in the present utility model are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component".

[0033] Please refer to Figures 1 to 7 , a foam device for a smart toilet according to a preferred embodiment provided by the present utility model includes a body 10, a liquid extraction pump 20, a liquid level sensor 30, etc.

[0034] The body 10 has a liquid storage chamber 11, a first-stage mixing chamber 12, and a second-stage mixing chamber 13. The liquid storage chamber 11 has a liquid filling port 111 and a liquid outlet 112 of the liquid storage chamber; the first-stage mixing chamber 12 has a first-stage liquid inlet 121, and the second-stage mixing chamber 13 has a water inlet 131 and a second-stage liquid outlet 132. The foaming liquid in the liquid storage chamber 11 is pumped to the first-stage liquid inlet 121 by the liquid extraction pump 20, and the first-stage mixing chamber 12 and the second-stage mixing chamber 13 are connected through a dilution hole 14.

[0035] By providing the first-stage mixing chamber 12 and the second-stage mixing chamber 13, and connecting the first-stage mixing chamber 12 and the second-stage mixing chamber 13 through the dilution hole 14, two-stage mixing is achieved. Compared with the prior art solution with only one-stage mixing, the present utility model adopts a two-stage mixing setting, which can slow down the speed of the decrease in the concentration of the foaming liquid in the mixing chamber, and avoid the problem that the liquid outlet concentration in the early stage of the mixing chamber is high, and the liquid outlet concentration in the later stage decreases significantly, resulting in a relatively small number of foaming times due to the rapid decrease in the liquid outlet concentration. By adopting the technical solution of the present utility model, the foaming liquid in the first-stage mixing chamber 12 can be slowly diluted by the second-stage mixing chamber 13. On the one hand, it can make the concentration of the liquid outlet of the mixing chamber decrease relatively slowly each time, and the foaming effect is relatively equivalent each time, and there will be no situation where the foaming amount of the foaming liquid pumped into the first-stage mixing chamber 12 by the liquid extraction pump 20 each time decreases significantly as the number of foaming times (the foaming liquid pumped by the liquid extraction pump once can be foamed multiple times) increases; on the other hand, on the basis of ensuring the foaming amount, it can extend the number of foaming times, improve the utilization rate of the foaming liquid, save the use cost of the foaming liquid, and have a good foaming effect.

[0036] Preferably, in this embodiment, there are at least two dilution holes 14, specifically three. And the three dilution holes 14 are symmetrically arranged. Preferably, the aperture of the dilution hole 14 is designed to be 1.0 mm - 1.5 mm. If the aperture is too small, it is not conducive to the water flow taking out the foaming liquid in the primary mixing chamber 12 during each foaming, and the foaming effect is poor; if the aperture is too large, it is not conducive to extending the number of foaming times.

[0037] In this embodiment, the liquid extraction pump 20 is fixedly connected to the main body 10. The liquid outlet 112 of the liquid storage chamber is connected to the inlet of the liquid extraction pump 20 through the first connecting pipe 21, and the outlet of the liquid extraction pump 20 is connected to the primary liquid inlet 121 through the second connecting pipe 22.

[0038] In order to make the overall structure of the foaming device more compact, in this embodiment, the bottom wall of the main body 10 is provided with a concave cavity 15, and the liquid extraction pump 20 is fixedly installed in the concave cavity 15.

[0039] In this embodiment, the secondary mixing chamber 13 and the primary mixing chamber 12 are arranged side by side vertically, and are separated by a partition plate 16. The dilution holes 14 are provided on the partition plate 16, and the liquid storage chamber 11 surrounds the secondary mixing chamber 13 and the primary mixing chamber 12. With such a layout of the inner cavity of the main body 10, the structure is compact and the molding is easier.

[0040] Preferably, in this embodiment, the volumes of the primary mixing chamber 12 and the secondary mixing chamber 13 are the same.

[0041] In this embodiment, an overflow port 113 is further provided at the top of the liquid storage chamber 11. When the liquid storage chamber 11 is full, the excess liquid can overflow through the overflow port 113.

[0042] In this embodiment, a liquid level sensor 30 is further provided at the top of the liquid storage chamber 11. The liquid level sensor 30 is used to sense the liquid level in the liquid storage chamber 11. The liquid level sensor 30 can be signal-connected to the control unit described below. When the liquid level sensor 30 senses that the liquid level in the liquid storage chamber 11 is lower than a predetermined value, the control unit controls the liquid extraction pump 20 to start pumping to supplement the foaming liquid in the liquid storage chamber 11 according to the signal sent by the liquid level sensor 30.

[0043] In this embodiment, the main body 10 includes a main body 17 with an open top end and an upper cover 18 covering the open top end. The liquid storage chamber 11, the primary mixing chamber 12, and the secondary mixing chamber 13 are formed inside the main body 17. The liquid filling port 111, the water inlet 131, and the secondary liquid outlet 132 are all provided on the upper cover 18. The liquid outlet 112 of the liquid storage chamber and the primary liquid inlet 121 are provided on the bottom wall of the main body 17. During manufacturing, the main body 17 and the upper cover 18 can be integrally formed separately first, and then the main body 17 and the upper cover 18 are hermetically and fixedly connected by welding or snap connection.

[0044] After testing, with the primary mixing and dilution scheme of the background technology, about 1000 foaming operations can be performed with 500 mml of foaming liquid, and on average, 800 mml of foam is generated per foaming operation; while with the secondary mixing and dilution scheme of the present utility model, about 2000 foaming operations can be performed with 500 mml of foaming liquid, and on average, 1000 mml of foam is generated per foaming operation. It can be seen that the technical scheme of the present utility model can significantly improve the utilization rate of the foaming liquid and has a better foaming effect.

[0045] In addition, the present utility model also provides an intelligent toilet, which includes a water supply valve (not shown), a control unit (not shown), and a foaming head 40. The foaming head 40 is arranged facing the toilet bowl (not shown) to convey the foam generated by foaming to the toilet bowl. The intelligent toilet further includes the foam device described in any one of the above, whose water inlet 131 is communicated with the water supply valve, and the secondary liquid outlet 132 is communicated with the foaming head 40. The control unit controls the opening and closing of the water supply valve and the liquid extraction pump 20. The water supply valve, the control unit, and the foaming head 40 can all adopt existing known structures. For example, the water supply valve can adopt a common solenoid valve, the control unit can adopt the main control board used in existing intelligent toilets, and the foaming head 40 can adopt an existing foaming head with a Venturi structure, which can automatically suck in external air when water flows through, and the external air can then be mixed with the diluted foaming liquid for foaming.

[0046] In order to achieve automatic liquid addition, a liquid addition unit (not shown) can also be provided, and the liquid addition unit is controlled by the control unit. The liquid addition unit can adopt an existing known structure. For example, the liquid addition unit is a liquid addition solenoid valve. When the liquid addition solenoid valve is opened, it provides foaming liquid, and when the liquid addition solenoid valve is closed, it stops supplying foaming liquid to the liquid storage cavity 11. It can be understood that the liquid addition unit can also not be provided, and manual liquid addition can be directly adopted.

[0047] The working process of this embodiment is briefly described below:

[0048] Liquid addition process: Refer to Figure 5 , at this time, the control unit controls the liquid addition unit to add foam liquid into the liquid storage cavity 11 through the liquid addition port 111 of the liquid storage cavity, so that the liquid storage cavity 11 is filled with foam liquid;

[0049] Liquid extraction process: Refer to Figure 6 , at this time, the control unit controls the liquid extraction pump 20 to start, and the liquid extraction pump 20 extracts a predetermined amount of foam liquid from the liquid storage cavity 11 into the primary mixing cavity 12, and then the control unit controls the liquid extraction pump 20 to close to stop liquid extraction;

[0050] Foaming process: Refer to Figure 7, at this time, the control unit controls the water supply valve to open. The water supply valve supplies water to the secondary mixing chamber 13 through the water inlet 131. A part of the water flow entering the secondary mixing chamber 13 will enter the primary mixing chamber 12 through the dilution holes 14, thereby bringing out the foaming liquid in the primary mixing chamber 12 into the secondary mixing chamber 13. Another part of the water flow entering the secondary mixing chamber 13 will directly mix with the foaming liquid in the secondary mixing chamber 13, and then flow out from the secondary liquid outlet 132 after dilution. The diluted foaming liquid flowing out from the secondary liquid outlet 132 enters the foaming head 40 and mixes with the external air inhaled by the foaming head 40 to generate a large amount of foam, which then flows into the toilet bowl, realizing the anti-splash and odor isolation functions of the toilet.

[0051] After the water supply valve closes the water supply, the foaming liquid in the primary mixing chamber 12 and the foaming liquid in the secondary mixing chamber 13 communicate with each other through the dilution holes 14, and finally the concentrations of the two-stage mixing chambers are the same, preparing for the next foaming.

[0052] When the foaming device foams a predetermined number of times (at this time, the concentration of the foaming liquid in the primary mixing chamber 12 is not enough to generate the required amount of foam), the control unit controls the liquid extraction pump 20 to start liquid extraction according to the pre-set program. After the liquid extraction pump 20 extracts liquid multiple times, when the liquid level in the liquid storage chamber 11 drops to the predetermined liquid level, the control unit controls the liquid adding unit to add liquid to the liquid storage chamber 11 again according to the signal of the liquid level sensor 30, and makes the liquid storage chamber 11 full of foaming liquid again.

[0053] Among them, Figure 5 、 Figure 6 and Figure 7 in, the dotted line with an arrow indicates the path of the liquid flow.

[0054] Unless otherwise defined, the technical and scientific terms used herein have the same meanings as commonly understood by those of ordinary skill in the technical field of the present utility model. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. Terms such as "component" as used herein can represent either a single part or a combination of multiple parts. Terms such as "mounted" and "arranged" as used herein can represent either a component being directly attached to another component or a component being attached to another component through an intermediate member. Features described in one embodiment herein can be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise stated in that other embodiment. The above description shows and describes the preferred embodiments of the present utility model. As mentioned above, it should be understood that the present utility model is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications, and environments, and can be changed within the scope of the concept of the present utility model through the above teachings or the techniques or knowledge in the relevant field. And any changes and variations made by those skilled in the art that do not depart from the spirit and scope of the present utility model shall fall within the protection scope of the appended claims of the present utility model.

Claims

1. A foam device for a smart toilet, characterized in that: The invention comprises a main body and a liquid pump, wherein the main body comprises a liquid storage chamber, a primary mixing chamber and a secondary mixing chamber, the liquid storage chamber comprises a liquid adding port and a liquid storage chamber outlet, the primary mixing chamber comprises a primary liquid inlet, the secondary mixing chamber comprises a water inlet and a secondary liquid outlet, the foaming liquid in the liquid storage chamber is pumped to the primary liquid inlet by the liquid pump, and the primary mixing chamber and the secondary mixing chamber are connected via a dilution hole.

2. The foam device according to claim 1, characterized in that There are at least two dilution holes.

3. The foam device according to claim 1, characterized in that The liquid pump is fixedly mounted on the body, the liquid outlet of the liquid storage chamber is connected to the inlet of the liquid pump through a first connecting pipe, and the outlet of the liquid pump is connected to the primary liquid inlet through a second connecting pipe.

4. The foam device according to claim 3, characterized in that The bottom wall of the body is provided with a concave cavity, and the liquid pump is fixedly installed in the cavity.

5. The foam device according to claim 1, characterized in that The secondary mixing chamber and the primary mixing chamber are arranged in parallel up and down, and are separated by a partition. The dilution hole is arranged on the partition, and the liquid storage chamber surrounds the secondary mixing chamber and the primary mixing chamber.

6. The foam device according to claim 1, characterized in that The volumes of the primary mixing chamber and the secondary mixing chamber are the same.

7. The foam device according to claim 1, characterized in that An overflow port is also provided on the top of the liquid storage chamber.

8. The foam device according to claim 1, characterized in that A liquid level sensor is also provided on the top of the liquid storage cavity for sensing the liquid level in the liquid storage cavity.

9. The foam device according to claim 1, characterized in that The main body includes a main body with an opening at the top and an upper cover covering the opening at the top. The liquid storage chamber, the primary mixing chamber, and the secondary mixing chamber are formed in the main body. The liquid adding port, the water inlet, and the secondary liquid outlet are all arranged on the upper cover. The liquid storage chamber outlet and the primary liquid inlet are arranged on the bottom wall of the main body.

10. An intelligent toilet, comprising a water supply valve, a control unit and a foaming head, wherein the foaming head is arranged toward the toilet bowl, characterized in that: It also includes the foam device according to any one of claims 1 to 9, the water inlet is connected to the water supply valve, the secondary liquid outlet is connected to the foaming head, and the control unit controls the opening and closing of the water supply valve and the liquid pump.

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