Foaming device

Abstract

According to the foaming device, a driving shaft drives a switching shaft to move towards a liquid storage cavity through water inlet pressure, so that a containing groove is communicated with the liquid storage cavity, and foaming liquid flows into the containing groove; and when the water pressure of the inlet water disappears, the driving shaft falls back due to loss of thrust, and then the switching shaft is driven to fall, so that the accommodating groove is communicated with the liquid mixing cavity, and the foaming liquid in the accommodating groove flows into the liquid mixing cavity and is mixed with the previous inlet water body to form a mixed liquid. Therefore, according to the device, the foaming liquid can be automatically added only by opening or closing the inlet water flow, the liquid is quantitatively added each time, and the liquid adding amount is accurate and controllable, so that the arrangement of an independent infusion pump is avoided, the internal structure of the cover plate is simplified, the power loss is reduced, and the noise and the later maintenance cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic foaming, in particular to a foaming device. Background Art

[0002] Currently, most smart toilet seats have a foaming device. The foam generated by the foaming device can be covered on the water surface to achieve the effects of splash prevention, odor isolation, sound insulation, softening yellow scale and antibacterial, which helps to maintain the cleanliness and hygiene of the bathroom.

[0003] Currently, smart covers on the market generally use independent liquid extraction pumps to extract the foaming liquid. This type of technical solution has the following problems: 1) The structure is complex and its compatibility with the entire smart toilet must be considered; 2) The operation of the independent liquid extraction pump consumes a certain amount of electricity, thereby increasing the energy consumption of the smart toilet, and there is a certain amount of noise during operation, affecting the user experience; 3) The maintenance cost is relatively high. Once a fault occurs, the difficulty and cost of repair will increase accordingly. Utility Model Content

[0004] In view of the shortcomings of the background technology, the purpose of the utility model is to provide a foaming device.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A foaming device comprises a box body, wherein a partition is arranged in the box body, the partition divides the internal space of the box body into a liquid storage chamber and a liquid mixing chamber arranged up and down, the liquid storage chamber is provided with a liquid adding port, the liquid mixing chamber is provided with a water inlet, and the partition is provided with a connecting hole connecting the liquid storage chamber and the liquid mixing chamber; it also comprises a switching shaft, the switching shaft movable seal is adapted to the connecting hole, a receiving groove is provided on the surface of the switching shaft, and a driving shaft is provided in the liquid mixing chamber, and the driving shaft is fixedly connected to the switching shaft; the water inlet is connected to a pressure water source, and the driving shaft drives the switching shaft to reciprocate in the connecting hole based on whether water is flowing into the water inlet, so that the receiving groove is connected to the liquid storage chamber or the liquid mixing chamber.

[0007] Furthermore, the partition is provided with a mounting hole, one end of the drive shaft is movably sealed and adapted in the mounting hole, the switching shaft is fixedly connected to one end of the drive shaft located in the liquid storage chamber, and the other end of the drive shaft is provided with a cavity, which faces the water inlet.

[0008] Furthermore, a guide column is provided on one side of the water inlet located at the mixing chamber, and the guide column is provided with a water inlet channel connected to the water inlet. When the water inlet stops inletting water, the guide column is located in the cavity.

[0009] Furthermore, a first guide portion is provided at the opening of the mounting hole, and one end of the driving shaft is movably inserted into the first guide portion.

[0010] Furthermore, the drive shaft is provided with an inserting section and an abutting section, the inserting section is movably inserted in the first guide portion, and the radial dimension of the inserting section is smaller than the radial dimension of the abutting section, so that the hole edge of the first guide portion can abut against the abutting section.

[0011] Furthermore, the inserting section and the abutting section are provided with internal spaces that are interconnected, and the internal spaces form a cavity.

[0012] Furthermore, an abutment portion extending radially outward is provided on the outer side of the abutment section, and a return spring is provided on the outer sleeve of the first guide portion, one end of the return spring abuts against the partition plate, and the other end of the return spring abuts against the abutment portion.

[0013] Furthermore, installation grooves are respectively provided on the upper and lower sides of the accommodating groove, and sealing rings are installed in the installation grooves to seal and fit the inner wall of the communicating hole.

[0014] Furthermore, a second guide portion is provided at an opening of the communicating hole on one side facing the liquid mixing chamber, and a plurality of liquid drain grooves arranged along the axial direction of the second guide portion are provided at the end thereof.

[0015] Furthermore, an upper cover and a lower cover are respectively provided at the openings at both ends of the box body, the upper cover is provided with a liquid inlet, and the lower cover is provided with a water inlet.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model proposes a foaming device, which drives the switching shaft to move toward the liquid storage chamber through the driving shaft by the water pressure of the inlet water, so that the receiving tank is connected to the liquid storage chamber, so that the foaming liquid flows into the receiving tank; and when the water pressure of the inlet water disappears, the driving shaft falls back due to the loss of thrust, and then drives the switching shaft to fall, so that the receiving tank is connected to the mixing liquid chamber, and the foaming liquid in the receiving tank flows into the mixing liquid chamber and mixes with the previous inlet water to form a mixed liquid. Therefore, the device can realize automatic liquid addition of the foaming liquid only by turning on or off the inlet water flow, and each time the liquid is added quantitatively, and the amount of liquid added is precisely controllable, thereby avoiding the need to set up an independent liquid pump, simplifying the internal structure of the cover plate, reducing power loss and reducing the subsequent maintenance cost.

[0018] 2. The utility model proposes a foaming device, in which a driving shaft is provided with a cavity with an opening, and the cavity is provided with an opening toward the water inlet, so that the incoming water flow is sprayed toward the cavity, thereby increasing the force of the incoming water flow on the driving shaft, accelerating the rising rate of the switching shaft, and at the same time allowing the incoming water flow to fall back to the bottom of the mixing chamber as soon as possible to merge with the foaming liquid.

[0019] 3. The utility model proposes a foaming device, in which a guide column is provided at the opening on one side of the water inlet toward the mixing chamber, which, on the one hand, prevents the mixed liquid in the mixing chamber from flowing out of the mixing chamber through the water inlet hole, and on the other hand, shortens the moving stroke of the driving shaft and speeds up the switching rate of the switching shaft.

[0020] 4. The utility model proposes a foaming device, in which the connecting hole and the mounting hole are respectively provided with a first guide portion and a second guide portion, so as to guide the switching shaft and the driving shaft to move in the vertical direction, thereby avoiding deviation of the switching shaft and the driving shaft during the up and down movement, which affects the sealing effect.

[0021] 5. The foaming device proposed in the utility model also includes a return spring, which is sleeved outside the first guide portion, and one end of the return spring abuts against the partition plate, and the other end abuts against the abutment portion, so that the drive shaft falls back quickly under the action of elastic force.

[0022] 6. The utility model proposes a foaming device, wherein the end of the second guide portion is provided with a plurality of drainage grooves arranged along its axial direction, so that the accommodating groove is connected to the liquid mixing chamber through the drainage grooves without the sealing ring being separated from the second guide portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of a foaming device of the utility model;

[0025] Figure 2 This is an exploded view of a foaming device of the utility model;

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is a schematic diagram of a driving shaft of a foaming device of the utility model;

[0028] Figure 5 It is a schematic diagram of an initial state of a foaming device of the utility model;

[0029] Figure 6 A schematic diagram of water inlet of a foaming device of the utility model;

[0030] Figure 7 This is a schematic diagram of stopping water inlet of a foaming device of the utility model;

[0031] In the figure, 10, box body; 101, partition; 1011, mounting hole; 1012, connecting hole; 20, liquid storage chamber; 30, mixing chamber; 40, switching shaft; 401, mounting groove; 402, accommodating groove; 403, sealing ring; 50, driving shaft; 501, plug-in section; 502, abutment section; 503, abutment part; 504, cavity; 60, reset spring; 70, guide column; 701, water inlet channel; 801, first guide part; 802, second guide part; 8021, liquid drain groove; 90, upper cover; 100, lower cover; 1001, water inlet. DETAILED DESCRIPTION

[0032] Combine the following Figure 1-7 The utility model is described in detail.

[0033] A foaming device comprises a box body 10, wherein a partition 101 is arranged in the box body 10, and the partition 101 divides the internal space of the box body 10 into a liquid storage chamber 20 and a liquid mixing chamber 30 arranged up and down, the liquid storage chamber 20 is provided with a liquid adding port, and the liquid mixing chamber 30 is provided with a water inlet 1001, and the partition 101 is provided with a connecting hole 1012 connecting the liquid storage chamber 20 and the liquid mixing chamber 30; and further comprises a switching shaft 40, the switching shaft 40 is movably sealed and adapted to the connecting hole 1012, a receiving groove 402 is provided on the surface of the switching shaft 40, and a driving shaft 50 is provided in the liquid mixing chamber 30, and the driving shaft 50 is fixedly connected to the switching shaft 40; the water inlet 1001 is connected to a pressure water source, and the pressure water source includes but is not limited to a municipal water source or a toilet pressurized water, and the driving shaft 50 drives the switching shaft 40 to reciprocate in the connecting hole 1012 based on whether water is inflowed into the water inlet 1001, so that the receiving groove 402 is connected to the liquid storage chamber 20 or the liquid mixing chamber 30.

[0034] Therefore, the foaming device drives the switching shaft 40 to move toward the liquid storage chamber 20 through the driving shaft 50 by the water pressure of the inlet water, so that the receiving groove 402 is connected to the liquid storage chamber 20, so that the foaming liquid flows into the receiving groove 402; and when the water pressure of the inlet water disappears, the driving shaft 50 falls back due to the loss of thrust, and then drives the switching shaft 40 to fall, so that the receiving groove 402 is connected to the mixing liquid chamber 30, so that the receiving groove 402 is connected to the mixing liquid chamber 30, and the foaming liquid in the receiving groove 402 flows into the mixing liquid chamber 30, and mixes with the previous inlet water body to form a mixed liquid. Therefore, the device can realize automatic liquid addition of the foaming liquid only by turning on or off the inlet water flow, and each time the liquid is added quantitatively, and the amount of liquid added is precisely controllable, thereby avoiding the need to set up an independent liquid pump, simplifying the internal structure of the cover plate, reducing power loss, noise and later maintenance costs.

[0035] In this embodiment, Figure 6As shown, the partition 101 is provided with a mounting hole 1011, one end of the driving shaft 50 is movably sealed and adapted in the mounting hole 1011, the switching shaft 40 is fixedly connected to one end of the driving shaft 50 located in the liquid storage chamber 20, and the other end of the driving shaft 50 is provided with a cavity 504, and the cavity 504 faces the water inlet 1001, so that the incoming water flow is sprayed toward the cavity 504, thereby increasing the force of the incoming water flow on the driving shaft 50, accelerating the rising rate of the switching shaft 40, and at the same time allowing the incoming water flow to fall back to the bottom of the mixing chamber 30 as soon as possible to merge with the foaming liquid.

[0036] In this embodiment, a guide column 70 is provided on one side of the water inlet 1001 located at the mixing chamber 30, and the guide column 70 is provided with a water inlet channel 701 connected to the water inlet 1001. When the water inlet 1001 stops inletting water, the guide column 70 is located in the cavity 504. On the one hand, the mixed liquid in the mixing chamber 30 is prevented from flowing out of the mixing chamber 30 through the water inlet hole, and on the other hand, the moving stroke of the driving shaft 50 is shortened, and the switching rate of the switching shaft 40 is accelerated.

[0037] In this embodiment, Figure 5 As shown, a first guide portion 801 is provided at the opening of the mounting hole 1011, one end of the drive shaft 50 is movably inserted into the first guide portion 801, a second guide portion 802 is provided at the opening of the communicating hole 1012, and a plurality of drainage grooves 8021 arranged along the axial direction are provided at the end of the second guide portion 802, so that the accommodating groove 402 is connected to the liquid mixing chamber 30 through the drainage grooves 8021 without the sealing ring 403 being separated from the second guide portion 802. At the same time, the communicating hole 1012 and the mounting hole 1011 are respectively provided with a first guide portion 801 and a second guide portion 802, so as to guide the switching shaft 40 and the drive shaft 50 to move in the vertical direction, and avoid the switching shaft 40 and the drive shaft 50 from being deflected during the up and down movement, which affects the sealing effect.

[0038] In this embodiment, Figure 4 As shown, the drive shaft 50 is provided with an insertion section 501 and an abutment section 502, the insertion section 501 is movably inserted in the first guide portion 801, and the radial dimension of the insertion section 501 is smaller than the radial dimension of the abutment section 502, so that the edge of the hole of the first guide portion 801 can abut against the abutment section 502, and the insertion section 501 and the abutment section 502 are provided with an internal space that is interconnected, and the internal space constitutes a cavity 504. The abutment section 502 is provided with an abutment portion 503 extending radially outwardly therefrom on the outside, and the first guide portion 801 is provided with a return spring 60 on the outer sleeve, one end of the return spring 60 abuts against the partition 101, and the other end of the return spring 60 abuts against the abutment portion 503, so that the drive shaft 50 falls back quickly under the action of elastic force.

[0039] In this embodiment, mounting grooves 401 are respectively provided on the upper and lower sides of the receiving groove 402, and sealing rings 403 are installed in the mounting grooves 401 to seal and fit the inner wall of the communicating hole 1012. When the receiving groove 402 is connected to the liquid storage chamber 20, the sealing ring 403 located at the bottom is sealed and fits the inner wall of the communicating hole 1012 to prevent the foaming liquid from directly flowing into the mixing liquid chamber 30; when the receiving groove 402 is connected to the mixing liquid chamber 30, the sealing ring 403 located at the top is sealed and fits the inner wall of the communicating hole 1012 to prevent the foaming liquid from flowing into the receiving groove 402.

[0040] In this embodiment, an upper cover 90 and a lower cover 100 are respectively disposed at the openings at both ends of the box body 10 . The upper cover 90 is provided with a liquid inlet, and the lower cover 100 is provided with a water inlet 1001 .

[0041] The working principle of a foaming device proposed in the utility model is as follows:

[0042] When water enters the water inlet 1001, Figure 6 As shown, the water pressure of the inlet water drives the switching shaft 40 to move toward the liquid storage chamber 20 through the driving shaft 50, so that the receiving groove 402 is connected to the liquid storage chamber 20, so that the foaming liquid flows into the receiving groove 402, and the falling water body of the inlet water falls into the mixing liquid chamber 30; when the water pressure of the inlet water disappears, as shown in FIG. Figure 7 As shown, the driving shaft 50 falls back due to the loss of thrust, causing the switching shaft 40 to fall back, so that the receiving groove 402 is connected to the mixing chamber 30, so that the receiving groove 402 is connected to the mixing chamber 30 through the drainage groove 8021, and the foaming liquid flows into the mixing chamber 30 through the drainage groove 8021 and mixes with the water body previously inflowing; the water inlet 1001 flows in again, and the water flow pushes the driving shaft 50 to move on the one hand, and falls back into the mixing chamber 30 and mixes with the previous foaming liquid mixture on the other hand. This is repeated, so that there is always a certain amount of foaming liquid mixture in the mixing chamber 30.

[0043] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A foaming device, comprising a box body, characterized in that: The box body is provided with a partition, which divides the internal space of the box body into a liquid storage chamber and a liquid mixing chamber arranged vertically, the liquid storage chamber is provided with a liquid adding port, the liquid mixing chamber is provided with a water inlet, and the partition is provided with a connecting hole connecting the liquid storage chamber and the liquid mixing chamber; it also includes a switching shaft, the switching shaft movably seals and is adapted to the connecting hole, a receiving groove is provided on the surface of the switching shaft, and a driving shaft is provided in the liquid mixing chamber, and the driving shaft is fixedly connected to the switching shaft; the water inlet is connected to a pressure water source, and the driving shaft drives the switching shaft to reciprocate in the connecting hole based on whether water is flowing into the water inlet, so that the receiving groove is connected to the liquid storage chamber or the liquid mixing chamber.

2. A foaming device according to claim 1, characterized in that: The partition is provided with a mounting hole, one end of the drive shaft is movably sealed and adapted in the mounting hole, the switching shaft is fixedly connected to one end of the drive shaft located in the liquid storage cavity, and the other end of the drive shaft is provided with a cavity, which faces the water inlet.

3. A foaming device as claimed in claim 2, characterized in that: A guide column is provided on one side of the water inlet located at the mixing chamber. The guide column is provided with a water inlet channel connected to the water inlet. When the water inlet stops inletting water, the guide column is located in the cavity.

4. A foaming device as claimed in claim 3, characterized in that: A first guide portion is provided at the opening of the mounting hole, and one end of the driving shaft is movably inserted in the first guide portion.

5. A foaming device as claimed in claim 4, characterized in that: The drive shaft is provided with an insertion section and an abutment section, the insertion section is movably inserted in the first guide portion, and the radial dimension of the insertion section is smaller than the radial dimension of the abutment section, so that the orifice edge of the first guide portion can abut against the abutment section.

6. A foaming device as claimed in claim 5, characterized in that: The inserting section and the abutting section are provided with internal spaces that are interconnected, and the internal spaces constitute the cavity.

7. A foaming device as claimed in claim 5, characterized in that: An abutment portion extending radially outward is disposed on the outer side of the abutment section, and a return spring is disposed on the outer sleeve of the first guide portion. One end of the return spring abuts against the partition plate, and the other end of the return spring abuts against the abutment portion.

8. A foaming device as claimed in claim 1, characterized in that: The upper and lower sides of the accommodating groove are respectively provided with mounting grooves, and a sealing ring which is sealingly adapted to the inner wall of the communicating hole is installed in the mounting groove.

9. A foaming device as claimed in claim 8, characterized in that: A second guide portion is provided at a side opening of the communicating hole facing the liquid mixing chamber, and a plurality of liquid drain grooves arranged along the axial direction of the second guide portion are provided at the end of the second guide portion.

10. A foaming device according to claim 1, characterized in that: An upper cover and a lower cover are respectively arranged at the openings at both ends of the box body, the upper cover is provided with the liquid adding port, and the lower cover is provided with the water inlet.

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