Foaming device and closestool
By designing a foaming device without air pump, using the Venturi effect and non-parallel axis design of the injection hole, the problem of high cost and large space occupancy in existing smart toilets is solved, and efficient foam generation and Space savings.
Patent Information
- Application Number
- CN202420004489.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-02
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-01-02
AI Technical Summary
The foam shield device in existing smart toilets requires air supply to the air pump, resulting in high costs, large space occupancy and control port occupancy, and lack of efficient foaming solutions.
A foaming device is designed to achieve efficient mixing of liquid and air through the combination of liquid inlet channel, jet hole, suction chamber and suction channel, using the Venturi effect and non-parallel axis design of the jet hole to achieve efficient mixing of liquid and air and generate foam.
The foaming device does not require an air pump, which reduces costs, saves space, and improves the efficiency of foam generation to form a stronger foam shield.
Smart Images
Figure CN222500482U_ABST
Abstract
Description
Technical Field
[0001] The utility model generally relates to the technical field of bathroom equipment, and in particular to a foaming device and a toilet. Background Art
[0002] The toilet is a common household appliance. With the development of science and technology, its functions are becoming more and more abundant. Some existing smart toilets have the function of foam shield, which can cover the water seal surface of the toilet cavity with foam to form a layer of foam shield to suppress splashing. At the same time, the foam also has the function of sterilization and odor isolation, and can also act as a lubricant to make it easier to discharge dirt.
[0003] The foam shield device in the prior art includes a liquid pump, an air pump and a water supply component. The liquid pump is used to extract the foaming agent liquid from the liquid storage bottle, the air pump is used to absorb air, and the water supply component is used to supply water. The foam shield device mixes the foaming agent liquid, air and water to foam, and then discharges the generated foam into the water seal of the toilet cavity to form a foam shield on the surface of the water seal. This foam shield device requires an air pump for air supply, which not only greatly increases the cost of the foam shield device, but also the air pump and its pipelines need to occupy valuable space in the smart toilet, and the air pump also needs to occupy the control port on the main control board of the smart cover.
[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content
[0005] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.
[0006] A main purpose of the utility model is to overcome at least one defect of the above-mentioned prior art and provide a foaming device.
[0007] Another main purpose of the utility model is to overcome at least one defect of the above-mentioned prior art and provide a toilet.
[0008] In order to achieve the above utility model purpose, the utility model adopts the following technical solutions:
[0009] According to one aspect of the utility model, a foaming device is provided, the foaming device is provided with a liquid inlet channel, an injection hole, an air suction cavity and an air suction channel, the injection hole is connected to the liquid inlet channel and the air suction cavity, the air suction channel is connected to the air suction cavity, and the axis of the liquid inlet channel is not parallel to the axis of the injection hole;
[0010] The liquid from the liquid inlet channel can be injected into the suction chamber through the injection hole, so that the air pressure of the suction chamber is lower than the air pressure of the suction channel, so that the suction chamber can draw air from the suction channel to mix the liquid from the liquid inlet channel and the air from the suction channel.
[0011] According to one embodiment of the utility model, the liquid inlet channel is provided with a guide surface arranged opposite to the injection hole, and the guide surface is not parallel and not perpendicular to the axis of the injection hole, and the liquid from the liquid inlet channel can first impact the guide surface and then flow to the injection hole.
[0012] According to one embodiment of the present invention, the guide surface is a plane or a curved surface.
[0013] According to one embodiment of the present invention, the injection hole is a through hole with a constant diameter and a straight central axis, or the injection hole is a through hole with a diameter that increases toward the suction cavity and a straight central axis.
[0014] According to one embodiment of the utility model, the foaming device is provided with one or more injection holes.
[0015] According to one embodiment of the present invention, the cross-section of the injection hole is circular, elliptical, square, trapezoidal or polygonal.
[0016] According to an embodiment of the utility model, the foaming device further comprises a foaming net, and the liquid and air from the air suction chamber can pass through the foaming net and generate foam.
[0017] According to one embodiment of the utility model, the foaming device includes a plurality of the foaming nets, and the foaming device also includes a spacer ring, the spacer ring is used to separate two adjacent foaming nets, and the spacer ring is an annular member that allows liquid and air to pass through.
[0018] According to one embodiment of the utility model, the foaming device is further provided with a foaming channel, the foaming channel is connected to the suction chamber, and the foam from the suction chamber can flow into the foaming channel and be discharged into the toilet chamber of the toilet.
[0019] According to another aspect of the utility model, a toilet comprises a toilet seat and a foaming device, wherein the toilet seat is provided with a toilet cavity, the foaming device is any one of the foaming devices described above, and the foam generated by the foaming device can be discharged into the toilet cavity.
[0020] It can be seen from the above technical solution that the advantages and positive effects of the foaming device and toilet of the utility model are:
[0021] The foaming device and toilet of the utility model, the liquid from the liquid inlet channel is injected into the air suction chamber through the injection hole. Since the size of the injection hole is small, a fast-moving liquid beam can be generated through the injection hole, so that the air suction chamber produces a Venturi effect, so that the air pressure of the air suction chamber is less than the air pressure of the air suction channel, so that the air suction chamber can absorb air from the air suction channel, and the liquid from the liquid inlet channel and the air from the air suction channel are mixed. In addition, since the axis of the liquid inlet channel is not parallel to the axis of the injection hole, the fluid flowing from the liquid inlet channel into the injection hole is in an agitated state, which helps the process of the fluid being injected from the injection hole into the air suction chamber to generate a scattered liquid beam, and the scattered liquid beam can make the air suction chamber produce a stronger Venturi effect, which is convenient for better air suction from the air suction channel. Compared with the prior art, the foaming device and toilet of the utility model can save the air pump and its matching airway and control port, which can not only greatly reduce the cost of the foaming device, but also free up more valuable space for the toilet, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The various objects, features and advantages of the present invention will become more apparent by considering the following detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The accompanying drawings are only exemplary illustrations of the present invention and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals always represent the same or similar parts. Among them:
[0023] Figure 1 is a schematic structural diagram of a foaming device according to an exemplary embodiment.
[0024] Figure 2 is a partially exploded schematic diagram of a foaming device according to an exemplary embodiment.
[0025] Figure 3 is a schematic diagram of a first cross-sectional structure of a foaming device according to an exemplary embodiment.
[0026] Figure 4 is a schematic diagram of a second cross-sectional structure of a foaming device according to an exemplary embodiment.
[0027] Figure 5 is a schematic structural diagram of another foaming device according to an exemplary embodiment.
[0028] Figure 6 is a schematic diagram of a first cross-sectional structure of another foaming device according to an exemplary embodiment.
[0029] Figure 7 is a second cross-sectional structural schematic diagram of another foaming device according to an exemplary embodiment.
[0030] The reference numerals are described as follows:
[0031] 1-liquid inlet channel; 2-injection hole; 3-inhalation cavity; 4-inhalation channel; 5-bubble net; 6-spacer ring; 7-bubble outlet channel; 8-bubble outlet; 9-water outlet channel; 10-water outlet; 11-guide surface; 12-switching valve group. DETAILED DESCRIPTION
[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.
[0033] The described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present invention. However, those skilled in the art will appreciate that the technical solution of the present invention may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be used. In other cases, known structures, materials or operations are not shown or described in detail to avoid blurring the various aspects of the present invention.
[0034] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.
[0035] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this embodiment provides a foaming device, which is used on a toilet and can generate foam that flows into the toilet seat cavity, so that a foam shield is formed on the water seal surface of the toilet cavity. Specifically, the foaming device is provided with a liquid inlet channel 1, an injection hole 2, an air suction cavity 3, an air suction channel 4 and a foam outlet channel 7. Among them, the liquid inlet channel 1 is used to flow in the mixed foaming agent and water, the injection hole 2 connects the liquid inlet channel 1 and the air suction cavity 3, the axis of the liquid inlet channel 1 is not parallel to the axis of the injection hole 2, one end of the air suction channel 4 and the foam outlet channel 7 are respectively connected to the air suction cavity 3, and the other end of the air suction channel 4 can be connected to the outside air, and the other end of the foam outlet channel 7 is provided with a foam outlet 8 connected to the toilet cavity. In addition, the foaming device also includes a foaming net 5 arranged in front of the air suction cavity 3. During operation, the liquid from the liquid inlet channel 1 can be injected into the suction chamber 3 through the injection hole 2. Since the size of the injection hole 2 is relatively small, the injection hole 2 can form a liquid beam that is quickly injected into the suction chamber 3, allowing the suction chamber 3 to produce a Venturi effect, so that the air pressure in the suction chamber 3 is lower than the air pressure in the suction channel 4. In this way, the suction chamber 3 can absorb air from the suction channel 4, and mix the foaming agent and water from the liquid inlet channel 1 and the air from the suction channel 4. A large amount of foam can be generated when the mixed liquid and air pass through the foaming net 5. The foam is discharged along the bubble outlet channel 7 and finally flows into the water seal surface of the toilet chamber from the bubble outlet 8.
[0036] It should be noted that if Figure 4 As shown, since the axis of the liquid inlet channel 1 is not parallel to the axis of the injection hole 2, that is, Figure 4 The middle angle A is not equal to 0° or 180°, so the fluid flowing from the liquid inlet channel 1 into the injection hole 2 will impact the corresponding hole wall, making the fluid in an agitated state, so that the fluid flowing into the injection hole 2 has a tendency to move in a circumferential direction, which helps to generate a scattered liquid beam in the process of the fluid being injected from the injection hole 2 into the air suction chamber 3, so that the diameter D at the end of the liquid beam is larger than the diameter C of the injection hole 2, and the scattered liquid beam can make the air suction chamber 3 produce a stronger Venturi effect, which is convenient for better air suction from the air suction channel 4. In addition, the scattered liquid beam can also make the mixed liquid and air mix more fully, which is conducive to generating more foam when passing through the foaming net 5.
[0037] like Figure 4 As shown, in this embodiment, the liquid inlet channel 1 is provided with a guide surface 11 arranged opposite to the injection hole 2, and the guide surface 11 is located at the junction of the liquid inlet channel 1 and the injection hole 2, and the guide surface 11 is a plane that is not parallel and not perpendicular to the axis of the injection hole 2, that is, Figure 4The middle angle B is not equal to 0° and 90°. This structure of the guide surface 11 has the function of guiding the liquid from the liquid inlet channel 1 to the injection hole 2, which can greatly reduce the kinetic energy loss of the fluid here, so that the liquid beam ejected from the injection hole 2 has a greater speed and produces a stronger Venturi effect. It should be noted that in other embodiments, the guide surface 11 can be an arc surface or other transitional curved surface, which plays the role of guiding the liquid from the liquid inlet channel 1 to the injection hole 2, and the details are not repeated.
[0038] In addition, if Figure 4 As shown, in this embodiment, the injection hole 2 is a through hole with a constant diameter and a straight central axis. A through hole with a straight central axis can reduce kinetic energy loss and allow the liquid ejected from the injection hole 2 to have a faster speed. In other embodiments, the injection hole 2 can be a through hole with a diameter that becomes larger toward the suction chamber 3 and a straight central axis. For example, the injection hole 2 can be trumpet-shaped, bell-shaped, or waist-shaped. The injection hole 2 of this structure can allow the end of the liquid beam ejected from the injection hole 2 to have a larger diameter, which can further enhance the Venturi effect of the suction chamber 3.
[0039] In addition, in this embodiment, the foaming device may be provided with one or more injection holes 2, and the cross-section of the injection hole 2 may be in various shapes, such as circular, elliptical, square, trapezoidal or polygonal, etc., which will not be described in detail here.
[0040] like Figure 2 and Figure 3 As shown, in this embodiment, the foaming device includes two foaming nets 5, and a spacer ring 6 is provided between the two foaming nets 5 for interruption. The spacer ring 6 is a ring-shaped member that allows liquid and air to pass through. The foaming net 5 and the spacer ring 6 are arranged on the connecting channel between the air suction chamber 3 and the foaming channel 7. The mixed foaming agent, water and air can generate a large amount of foam after passing through the two foaming nets 5. The foaming net 5 and the foaming agent belong to the prior art in this field and will not be described in detail here. It should be noted that in other embodiments, the foaming device may also include other numbers of foaming nets 5 and corresponding spacer rings 6, which will not be described in detail here.
[0041] like Figure 3 As shown, in this embodiment, the foaming device is further provided with a water outlet channel 9, a water outlet 10 is provided at the end of the water outlet channel 9, and the water outlet channel 9 and the foam outlet channel 7 are independently isolated and arranged, and the water from the water outlet channel 9 can be supplied to the toilet to flush the toilet cavity. This structure can combine the foam outlet channel 7 for foam and the water outlet channel 9 for brush ring water, so that the toilet can have a simpler pipeline setting.
[0042] like Figure 5 , Figure 6 and Figure 7As shown, this embodiment also provides a foaming device, which is not only provided with a liquid inlet channel 1, an injection hole 2, an air suction chamber 3, an air suction channel 4, a bubble channel 7 and a water outlet channel 9, but also provided with a bubble outlet 8 and a water outlet 10 at the ends of the bubble channel 7 and the water outlet channel 9, respectively. In addition, the foaming device is also provided with a switching valve group 12, which can switch and control the water supply to the water outlet channel 9. The switching valve group 12 belongs to the prior art in this field and will not be described in detail here. The foaming device of this embodiment, in which the liquid beam injected into the air suction chamber 3 through the injection hole 2 can also make the air suction chamber 3 produce a Venturi effect to form a negative pressure, and draw air from the air suction channel 4, so that the foaming agent, water and air can be mixed to subsequently generate foam. The specific working principle is the same as that of the previous embodiment and will not be described in detail here.
[0043] It should be noted that if Figure 6 As shown, in the present embodiment, the injection hole 2 can be a through hole whose diameter becomes larger toward the suction chamber 3 and whose central axis is a straight line. An angle E is formed on both sides of the injection hole 2. The injection hole 2 with this structure can allow the end of the liquid beam ejected from the injection hole 2 to have a larger diameter, which can further enhance the Venturi effect of the suction chamber 3 and allow the suction chamber 3 to better absorb air from the suction channel 4.
[0044] This embodiment also provides a toilet (not shown), which includes a toilet seat and a foaming device. The toilet seat is provided with a toilet cavity. The foaming device is any one of the foaming devices provided in the above-mentioned embodiment. The foam generated by the foaming device can be discharged into the toilet cavity to form a foam shield on the water seal surface of the toilet cavity.
[0045] The foaming device and toilet provided in this embodiment can make the foaming device produce foam without setting a special air pump to supply air to the foaming device. Specifically, in this foaming device, the liquid from the liquid inlet channel 1 is injected into the air suction chamber 3 through the injection hole 2. Since the size of the injection hole 2 is small, a fast-moving liquid beam can be generated through the injection hole 2, so that the air suction chamber 3 produces a Venturi effect, so that the air pressure of the air suction chamber 3 is lower than the air pressure of the air suction channel 4, so that the air suction chamber 3 can absorb air from the air suction channel 4, so that the liquid from the liquid inlet channel 1 and the air from the air suction channel 4 are mixed. In addition, since the axis of the liquid inlet channel 1 is not parallel to the axis of the injection hole 2, the fluid flowing from the liquid inlet channel 1 into the injection hole 2 will impact the corresponding hole wall, causing the fluid to be in an agitated state, so that the fluid flowing into the injection hole 2 has a tendency to move in a circumferential direction, which helps to generate a scattered liquid beam in the process of the fluid being injected from the injection hole 2 into the air suction chamber 3, and makes the caliber of the end of the liquid beam larger than the aperture of the injection hole 2, which can better accelerate the flow of air in the air suction chamber 3, and make the air suction chamber 3 produce a stronger Venturi effect, so as to better absorb air from the air suction channel 4. In addition, the scattered liquid beam can also make the mixed liquid and air mix more fully, which is conducive to generating more foam when passing through the foaming net 5.
[0046] Compared with the prior art, the foaming device and toilet of this embodiment can save the air pump and its supporting air duct and control port, which can not only greatly reduce the cost of the foaming device, but also free up more valuable space for the toilet, and has good practicality.
[0047] It should be understood that the multiple examples described above can be used in multiple directions (such as tilted, inverted, horizontal, vertical, etc.) and in multiple configurations without departing from the principles of the present invention. The embodiments shown in the accompanying drawings are shown and described only as examples of effective applications of the principles of the present invention, and the present invention is not limited to any specific details of these embodiments.
[0048] Of course, once the above description of the representative embodiments is carefully considered, it will be readily understood by those skilled in the art that various modifications, additions, substitutions, deletions and other changes may be made to these specific embodiments, and these changes are within the scope of the principles of the present utility model. Therefore, the foregoing detailed description should be clearly understood to be given only in an illustrative and exemplary manner, and the spirit and scope of the present utility model are limited only by the appended claims and their equivalents.
Claims
1. A foaming device, characterized in that: The foaming device is provided with a liquid inlet channel (1), an injection hole (2), an air suction chamber (3) and an air suction channel (4), wherein the injection hole (2) is connected to the liquid inlet channel (1) and the air suction chamber (3), the air suction channel (4) is connected to the air suction chamber (3), and the axis of the liquid inlet channel (1) is not parallel to the axis of the injection hole (2); The liquid from the liquid inlet channel (1) can be injected into the air suction chamber (3) through the injection hole (2), so that the air pressure of the air suction chamber (3) is lower than the air pressure of the air suction channel (4), so that the air suction chamber (3) can draw air from the air suction channel (4) to mix the liquid from the liquid inlet channel (1) and the air from the air suction channel (4).
2. The foaming device according to claim 1, characterized in that The liquid inlet channel (1) is provided with a guide surface (11) arranged opposite to the injection hole (2), and the guide surface (11) is not parallel to and not perpendicular to the axis of the injection hole (2), so that the liquid from the liquid inlet channel (1) can first impact the guide surface (11) and then flow to the injection hole (2).
3. The foaming device according to claim 2, characterized in that: The guide surface (11) is a plane or a curved surface.
4. The foaming device according to claim 1, characterized in that The injection hole (2) is a through hole with a constant diameter and a straight central axis, or the injection hole (2) is a through hole with a diameter that increases toward the air inhalation cavity (3) and a straight central axis.
5. The foaming device according to claim 1 or 4, characterized in that: The foaming device is provided with one or more injection holes (2).
6. The foaming device according to claim 1 or 4, characterized in that: The cross section of the injection hole (2) is circular, elliptical, square, trapezoidal or polygonal.
7. The foaming device according to claim 1, characterized in that: The foaming device also includes a foaming net (5), and the liquid and air from the air suction chamber (3) can pass through the foaming net (5) and generate foam.
8. The foaming device according to claim 7, characterized in that The foaming device comprises a plurality of the foaming nets (5), and the foaming device also comprises a spacer ring (6). The spacer ring (6) is used to separate two adjacent foaming nets (5), and the spacer ring (6) is an annular part that allows liquid and air to pass through.
9. The foaming device according to claim 1, characterized in that: The foaming device is also provided with a foaming channel (7), the foaming channel (7) is connected to the air suction chamber (3), and the foam from the air suction chamber (3) can flow into the foaming channel (7) and be discharged into the toilet chamber of the toilet.
10. A toilet, comprising a toilet seat and a foaming device, wherein the toilet seat is provided with a toilet cavity, characterized in that: The foaming device is the foaming device according to any one of claims 1 to 9, and the foam generated by the foaming device can be discharged into the stool cavity.