Air-liquid mixing device, flushing device and toilet

Abstract

A kind of gas-liquid mixing device, flushing device and closestool, including being provided with at least sequentially communicating first mixing chamber and second mixing chamber in liquid outlet direction, first mixing chamber is also communicated with first air inlet, and second mixing chamber is communicated with second air inlet and bubble outlet passage;It further includes air inlet channel, air inlet channel is communicated with first air inlet and second air inlet. When using, air enters first mixing chamber and foaming liquid are mixed to constitute preliminary mixed liquid by first air inlet;Preliminary mixed liquid is mixed again with the air entered by second air inlet, to form mixed liquid with numerous micro-bubbles. Compared with viscous foaming liquid, mixed liquid is larger and more delicate in volume, and has better flowability, can quickly form uniform and delicate foam with other liquid, so that less foaming liquid can achieve better foaming effect, keep foam solubility relatively stable, improve the use frequency of single bottle foaming liquid.

Description

Technical Field

[0001] This utility model relates to the field of foaming device technology, and in particular to a gas-liquid mixing device, a flushing device, and a toilet. Background Technology

[0002] Currently, smart toilets and smart toilet seats with foam generation capabilities generally employ the following foam control logic: a pumping mechanism draws foam concentrate from a storage device, delivers it to a mixing chamber, and mixes it with incoming water. The resulting foam is then discharged through a foam outlet. In this foam control logic, to reduce foam concentrate consumption, the supply of foam concentrate is not continuous, while the incoming water is continuously supplied. This causes the foam concentrate concentration in the mixing chamber to gradually decrease over time. Therefore, before the foam concentration reaches the minimum standard, the initial foam concentration generated is far higher than the required concentration, resulting in foam concentrate waste and preventing the maximum number of uses per bottle of foaming agent. Utility Model Content

[0003] The purpose of this utility model is to provide a gas-liquid mixing device, a flushing device, and a toilet.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A gas-liquid mixing device includes at least a first mixing chamber and a second mixing chamber connected sequentially along the liquid outlet direction. The first mixing chamber is also connected to a first air inlet and a liquid inlet channel, and the second mixing chamber is connected to a second air inlet and a foam outlet channel. The device also includes an air inlet channel connected to the first air inlet and the second air inlet. The air inlet channel supplies air to the first mixing chamber and the second mixing chamber through the first air inlet and the second air inlet, respectively, so that the air mixes with the foaming liquid flowing through the first mixing chamber and the second mixing chamber to form foam.

[0006] Furthermore, when the foaming liquid flows through the first mixing chamber and the second mixing chamber, it generates negative pressure, thereby drawing air into the first mixing chamber and the second mixing chamber through the first air inlet and the second air inlet, respectively.

[0007] Furthermore, it also includes a first inlet channel and a second inlet channel, wherein the first inlet channel is located at the inlet of the first mixing chamber, and the first mixing chamber is connected to the second mixing chamber through the second inlet channel;

[0008] The radial dimensions of the first inlet channel and the second inlet channel increase along the direction of foaming liquid flow, and the radial dimension of the inlet end of the first inlet channel is smaller than the radial dimension of the liquid inlet channel, and the radial dimension of the inlet end of the second inlet channel is smaller than the radial dimension of the first mixing chamber.

[0009] Furthermore, it also includes a bubble outlet, a first flow restrictor and a second flow restrictor, the cavity enclosed by the interconnected first flow restrictor and the second flow restrictor constitutes the first mixing cavity; the cavity enclosed by the bubble outlet and the second flow restrictor constitutes the second mixing cavity, and the first flow restrictor is provided with the first inlet channel, and the second flow restrictor is provided with the first air inlet, the second air inlet and the second inlet channel.

[0010] Furthermore, it includes a first flow restrictor and a second flow restrictor, the cavity enclosed by the interconnected first flow restrictor and the second flow restrictor forming the first mixing cavity; it also includes a bubble outlet, the cavity enclosed by the bubble outlet and the second flow restrictor forming the second mixing cavity, and the first flow restrictor is provided with the first inlet channel, and the second flow restrictor is provided with the first air inlet, the second air inlet and the second inlet channel.

[0011] Furthermore, the bubble outlet is provided with a receiving cavity and a bubble outlet channel communicating with the receiving cavity, the second flow restrictor is provided with a protrusion, the protrusion is provided with a second inlet channel communicating with the first mixing cavity, the protrusion is inserted into the receiving cavity, and the cavity between the two constitutes the second mixing cavity, the gap between the protrusion and the receiving cavity constitutes a first flow passage, and the second air inlet is connected to the second mixing cavity through the second flow passage.

[0012] Furthermore, it also includes a housing, the bubble outlet channel passing through the side of the housing, the accommodating cavity and the second flow restrictor disposed within the housing, and the gap between the accommodating cavity, the second flow restrictor and the housing forming a second flow passage; a liquid suction member is provided at the first end of the housing, and the internal channel of the liquid suction member is connected to the first inlet channel; an air inlet member is sealed to the second end of the housing, and the internal channel of the air inlet member forms the air inlet channel and is connected to the first air inlet and the second air inlet through the second flow passage.

[0013] A flushing device includes a flushing water path, the flushing water path being provided with a side spray connector, and a gas-liquid mixing device as described above. The foam outlet channel is connected to the side spray connector, and the side spray connector can generate negative pressure, causing the flushing water path to draw foam into the foam outlet channel.

[0014] Furthermore, it also includes a water distribution device, the inlet of which is connected to a water supply source, and the outlet of which is connected to a brush ring water path and a jet water path, respectively. The brush ring water path and the jet water path constitute the flushing water path, and the side spray connector is located in the brush ring water path.

[0015] Furthermore, it also includes a switching device for controlling the opening and closing of the bubble outlet channel.

[0016] A toilet includes a toilet body, the toilet body is provided with a brush ring nozzle and a jet nozzle, and a flushing device as described above is installed at the rear end of the toilet body, the brush ring water passage is connected to the brush ring nozzle, and the jet water passage is connected to the jet nozzle.

[0017] The beneficial effects of this utility model are:

[0018] 1. This utility model proposes a gas-liquid mixing device, comprising at least a first mixing chamber and a second mixing chamber sequentially connected along the liquid outlet direction. The first mixing chamber is also connected to a first air inlet, and the second mixing chamber is connected to a second air inlet and a foaming channel. It also includes an air inlet channel connected to the first and second air inlets. In use, air enters the first mixing chamber through the first air inlet and mixes with the foaming liquid to form a preliminary mixture. The preliminary mixture is then mixed again with air entering through the second air inlet, thereby forming a mixture with numerous microbubbles. Compared to viscous foaming liquid, the mixture has a larger and finer volume, better fluidity, and can quickly form uniform and fine foam with other liquids. This allows a smaller amount of foaming liquid to achieve a better foaming effect, maintains relatively stable foam concentration, and increases the number of uses per bottle of foaming liquid.

[0019] 2. The present invention proposes a gas-liquid mixing device in which the foaming liquid generates negative pressure when flowing through the first mixing chamber and the second mixing chamber, thereby drawing air into the first mixing chamber and the second mixing chamber through the first air inlet and the second air inlet respectively.

[0020] 3. The gas-liquid mixing device proposed in this utility model has radial dimensions of the first inlet channel and the second inlet channel that increase along the flow direction of the foaming liquid. The radial dimension of the inlet end of the first inlet channel is smaller than that of the liquid inlet channel, and the radial dimension of the inlet end of the second inlet channel is smaller than that of the first mixing chamber. This makes the foaming liquid that flows through it compressed and then expanded, which makes it easier to release air from the liquid, thereby improving the foaming effect of the foaming liquid.

[0021] 4. The flushing device proposed in this utility model includes a flushing water path and the aforementioned gas-liquid mixing device. The flushing water path is provided with a side spray connector, and the foam outlet channel is connected to the side spray connector. The side spray connector can generate negative pressure, so that the flushing water path draws foam into the foam outlet channel. At the same time, it also includes a switch device for controlling the opening and closing of the foam outlet channel, so as to control whether there is foam in the flushing water path, and meet the diverse usage needs of users. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a gas-liquid mixing device according to the present invention;

[0024] Figure 2 This is a cross-sectional view of a gas-liquid mixing device according to the present invention;

[0025] Figure 3 This is an exploded view of a gas-liquid mixing device according to the present invention;

[0026] Figure 4 This is a schematic diagram of the flow direction of a gas-liquid mixing device according to the present invention;

[0027] Figure 5 This is a schematic diagram of a flushing device according to the present invention;

[0028] Figure 6 This is a schematic diagram of the side spray connector of a flushing device according to the present invention;

[0029] Figure 7 for Figure 6 Sectional view along line AA;

[0030] Figure 8 This is a connection diagram of a flushing device according to the present invention;

[0031] Figure 9 This is a schematic diagram of a toilet according to the present invention;

[0032] In the figure, 101 is the first mixing chamber; 102 is the second mixing chamber; 201 is the first air inlet; 202 is the second air inlet; 301 is the liquid inlet channel; 302 is the air inlet channel; 303 is the bubble outlet channel; 40 is the first flow restrictor; 401 is the first inlet channel; 4011 is the first inlet channel A; 4012 is the first inlet channel B; 50 is the second flow restrictor; 501 is the second inlet channel; 5011 is the second inlet channel A; 5012 is the second inlet channel B; 502 is the protrusion; 60 is the shell; 70 is the bubble outlet. Components; 701, First connecting pipe; 702, Second connecting pipe; 80, Liquid suction component; 801, Positioning groove; 90, Air inlet component; 1001, First flow passage; 1002, Second flow passage; 110, Side spray connector; 1101, Acceleration channel; 1102, Negative pressure port; 120, Water distribution device; 130, Water pump; 140, Liquid storage box; 1401, Liquid filling port; 1402, Mounting groove; 150, Water inlet valve; 160, Switch device; 170, Toilet body; 180, Brush ring nozzle; 190, Water tank. Detailed Implementation

[0033] Example 1

[0034] The following is combined with Figures 1-4 This utility model will be described in detail.

[0035] A gas-liquid mixing device includes a first mixing chamber 101 and a second mixing chamber 102 connected sequentially along the liquid outlet direction. The first mixing chamber 101 is also connected to a first air inlet 201 and a liquid inlet channel 301. The second mixing chamber 102 is connected to a second air inlet 202 and a foam outlet channel 303. The gas-liquid mixing device also includes an air inlet channel 302, which is connected to the first air inlet 201 and the second air inlet 202. The air inlet channel 302 supplies air to the first mixing chamber 101 and the second mixing chamber 102 through the first air inlet 201 and the second air inlet 202, respectively, so that the air mixes with the foaming liquid flowing through the first mixing chamber 101 and the second mixing chamber 102 to form foam.

[0036] In other embodiments, the number of mixing chambers is not limited to the first mixing chamber 101 and the second mixing chamber 102. Several interconnected mixing chambers can be sequentially provided at the outlet end of the second mixing chamber 102 along the liquid outlet direction. Each mixing chamber is provided with an air inlet hole, and the air inlet channel 302 is connected to each mixing chamber through each air inlet hole, so that air is mixed with the foaming liquid flowing through each mixing chamber to form foam, thereby meeting the use requirements of multiple gas-liquid mixing more than twice.

[0037] In this embodiment, when the foaming liquid flows through the first mixing chamber 101 and the second mixing chamber 102, negative pressure is generated in the first mixing chamber 101 and the second mixing chamber 102, thereby drawing air into the first mixing chamber 101 and the second mixing chamber 102 respectively through the first air inlet 201 and the second air inlet 202. Furthermore, the radial dimensions of the first air inlet 201 and the second air inlet 202 along the gas flow direction are reduced, facilitating the drawing of air into the first mixing chamber 101 and the second mixing chamber 102.

[0038] like Figure 2 and Figure 4 As shown, the gas-liquid mixing device also includes a first inlet channel 401 and a second inlet channel 501. The first inlet channel 401 is located at the inlet of the first mixing chamber 101, and the first mixing chamber 101 is connected to the second mixing chamber 102 through the second inlet channel 501. The radial dimensions of the first inlet channel 401 and the second inlet channel 501 increase along the flow direction of the foaming liquid, and the radial dimension of the inlet end of the first inlet channel 401 is smaller than the radial dimension of the liquid inlet channel 301, and the radial dimension of the inlet end of the second inlet channel 501 is smaller than the radial dimension of the first mixing chamber 101, so that the foaming liquid flowing through is first compressed and then expanded, making it easy to precipitate air in the liquid.

[0039] Specifically, such as Figure 4 As shown, the first inlet channel 401 includes a first inlet channel A4011 and a first inlet channel B4012 connected sequentially along the liquid outlet direction, and the radial dimension of the first inlet channel A4011 is smaller than the radial dimension of the first inlet channel B4012; the second inlet channel 501 includes a second inlet channel A5011 and a second inlet channel B5012 connected sequentially along the liquid outlet direction, and the radial dimension of the second inlet channel A5011 is smaller than the radial dimension of the second inlet channel B5012. Furthermore, the transition between the first inlet channel A4011 and the first inlet channel B4012, and between the second inlet channel A5011 and the second inlet channel B5012, can be a gradual expansion transition or a sudden expansion transition.

[0040] like Figure 3 and Figure 4 As shown, the gas-liquid mixing device also includes a bubble outlet 70, a first flow restrictor 40, and a second flow restrictor 50. The cavity enclosed by the interconnected first flow restrictor 40 and second flow restrictor 50 constitutes a first mixing cavity 101. The cavity enclosed by the interconnected bubble outlet 70 and second flow restrictor 50 constitutes a second mixing cavity 102. The first flow restrictor 40 is provided with a first inlet channel 401, and the second flow restrictor 50 is provided with a first air inlet 201, a second air inlet 202, and a second inlet channel 501.

[0041] In this embodiment, the bubble outlet 70 is provided with a receiving cavity and a bubble outlet channel 303 connected to the receiving cavity. The second flow restrictor 50 is provided with a protrusion 502. The protrusion 502 is provided with a second inlet channel 501 connected to the first mixing cavity 101. The protrusion 502 is inserted into the receiving cavity, and the cavity enclosed by the two constitutes the second mixing cavity 102. The gap between the protrusion 502 and the receiving cavity constitutes the first flow passage 1001. The second air inlet 202 is connected to the second mixing cavity 102 through the flow passage so as to supply air to the second mixing cavity 102.

[0042] In this embodiment, the gas-liquid mixing device further includes a housing 60, a bubble outlet channel 303 passing through the side of the housing 60, a portion of the bubble outlet 70 having a receiving cavity, and a second flow restrictor 50 being disposed within the housing 60, and the gap between the bubble outlet 70, the second flow restrictor 50, and the housing 60 constitutes a second flow passage 1002. Figure 2 As shown, the first end of the housing 60 is provided with a liquid suction member 80. The internal channel of the liquid suction member 80 is connected to the first inlet channel 401. Specifically, the liquid suction member 80 is provided with a positioning groove 801. The second flow limiting member 50 is sealed and adapted to the positioning groove 801, and the first flow limiting member 40 is pressed against the second flow limiting member 50 by the liquid suction member 80. The second end of the housing 60 is sealed and connected with an air inlet member 90. The internal channel of the air inlet member 90 forms an air inlet channel 302. The air inlet channel 302 is connected to the first air inlet 201 and the second air inlet 202 through the second flow passage 1002.

[0043] The bubble outlet 70 includes a first connecting pipe 701 and a second connecting pipe 702 that are interconnected. The first connecting pipe 701 has a receiving cavity, and the internal channel of the second connecting pipe 702 forms a bubble outlet channel 303. The first connecting pipe 701 and the second connecting pipe 702 can be integrally formed or separately formed, and the second connecting pipe 702 and the shell 60 can be integrally formed or separately formed.

[0044] The working principle of the gas-liquid mixing device proposed in this embodiment is as follows:

[0045] like Figure 4 As shown, during use, the foaming liquid flows into the first mixing chamber 101, and air enters the first mixing chamber 101 through the first air inlet 201 to mix with the foaming liquid, forming a preliminary mixture. The preliminary mixture continues to flow into the second mixing chamber 102, where it mixes again with the air entering through the second air inlet 202, thus forming a mixture with numerous tiny bubbles. Compared to viscous foaming liquid, the mixture has a larger and finer volume, better fluidity, and can quickly form uniform and fine foam with other liquids. This allows a smaller amount of foaming liquid to achieve a better foaming effect, maintains relatively stable foam concentration, and increases the number of uses per bottle of foaming liquid.

[0046] Example 2

[0047] The following is combined with Figures 5-8 This utility model will be described in detail.

[0048] This embodiment provides a flushing device, including a flushing water path with a side spray nozzle 110, and a gas-liquid mixing device as described above. A foam outlet channel 303 is connected to the side spray nozzle 110, which can generate negative pressure, causing the flushing water path to draw foam into the foam outlet channel 303. Specifically, as... Figure 6 and Figure 7 As shown, the side spray connector 110 has an acceleration channel 1101 with a gradually decreasing water flow area along the water outlet direction. A negative pressure port 1102 is located near the outlet end of the acceleration channel 1101, and the negative pressure port 1102 is connected to the foaming channel 303. When the flushing water flows through the acceleration channel 1101, a negative pressure is generated at the negative pressure port 1102. Under the action of the negative pressure, the negative pressure port 1102 draws the mixture in the foaming channel 303 into the side spray connector 110. The mixture mixes with the flushing water to form foam, which is then flushed out.

[0049] In this embodiment, the rinsing device further includes a water distribution device 120. The inlet of the water distribution device 120 is connected to a water supply source, and the outlet of the water distribution device 120 is connected to a brush ring water path and a jet water path, respectively. The brush ring water path and the jet water path constitute the rinsing water path, and the side spray connector 110 is located in the brush ring water path. It also includes a switch device 160 for controlling the opening and closing of the foam outlet channel 303 to control whether there is foam in the brush ring water path, thereby achieving foam shield and clean water brush ring cleaning to meet diverse user needs.

[0050] like Figure 5 As shown, the flushing device also includes a storage box 140 for storing foaming liquid. The top of the storage box 140 has a filling port 1401 and a mounting groove 1402. The housing 60 is partially installed in the mounting groove 1402, and the suction member 80 passes through the bottom of the mounting groove 1402. The bottom of the storage box 140 also has a groove adapted to the suction member 80 so that the suction member 80 can draw out the foaming liquid at the bottom. At the same time, the switching device 160 is located at the bottom of the storage box 140.

[0051] like Figure 8 As shown, the water distribution device 120 is connected to the water supply source via the water pump 130. By controlling the water distribution device 120, the water supply source can be connected to either the brush ring water path or the jet water path. When the brush ring water path is connected to the water supply source, the brush ring water flow generates negative pressure when it passes through the acceleration channel 1101 of the side spray connector 110. When the switch device 160 is opened, the foaming channel 303 is connected to the brush ring water path, and the brush ring water flow mixes with the foaming liquid treated in the gas-liquid mixing device, resulting in foam in the brush ring water flow. When the switch device 160 is closed, the foaming channel 303 is no longer connected to the brush ring water path, and the brush ring water flow is clear water.

[0052] Example 3

[0053] This embodiment provides a toilet, such as Figure 9 As shown, the toilet includes a toilet body 170, which is equipped with a brush head 180 and a jet nozzle. A flushing device as described above is installed at the rear end of the toilet body 170. The brush head water path is connected to the brush head 180, and the jet nozzle water path is connected to the jet nozzle. The toilet also includes a water tank 190, which is connected to an inlet valve 150 and a water pump 130. The water tank 190 constitutes a water supply source, and the water pump 130 draws water from the water tank 190 and supplies it to the water distribution device 120.

[0054] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A gas-liquid mixing device, characterized in that, The device includes at least a first mixing chamber and a second mixing chamber connected sequentially along the liquid outlet direction. The first mixing chamber is also connected to a first air inlet and a liquid inlet channel, and the second mixing chamber is connected to a second air inlet and a foam outlet channel. It also includes an air inlet channel connected to the first air inlet and the second air inlet. The air inlet channel supplies air to the first mixing chamber and the second mixing chamber through the first air inlet and the second air inlet, respectively, so that the air mixes with the foaming liquid flowing through the first mixing chamber and the second mixing chamber to form foam.

2. The gas-liquid mixing device as described in claim 1, characterized in that, When the foaming liquid flows through the first mixing chamber and the second mixing chamber, it generates negative pressure, thereby drawing air into the first mixing chamber and the second mixing chamber through the first air inlet and the second air inlet, respectively.

3. The gas-liquid mixing device as described in claim 1, characterized in that, It also includes a first inlet channel and a second inlet channel, wherein the first inlet channel is located at the inlet of the first mixing chamber, and the first mixing chamber is connected to the second mixing chamber through the second inlet channel; The radial dimensions of the first inlet channel and the second inlet channel increase along the direction of foaming liquid flow, and the radial dimension of the inlet end of the first inlet channel is smaller than the radial dimension of the liquid inlet channel, and the radial dimension of the inlet end of the second inlet channel is smaller than the radial dimension of the first mixing chamber.

4. The gas-liquid mixing device as described in claim 3, characterized in that, It also includes a bubble outlet, a first flow restrictor and a second flow restrictor. The cavity enclosed by the interconnected first flow restrictor and the second flow restrictor constitutes the first mixing cavity. The cavity enclosed by the bubble outlet and the second flow restrictor constitutes the second mixing cavity. The first flow restrictor is provided with the first inlet channel, and the second flow restrictor is provided with the first air inlet, the second air inlet and the second inlet channel.

5. A gas-liquid mixing device as described in claim 4, characterized in that, The foaming member has a receiving cavity and a foaming channel communicating with the receiving cavity. The second flow limiting member has a protrusion. The protrusion has a second inlet channel communicating with the first mixing cavity. The protrusion is inserted into the receiving cavity, and the cavity between the two constitutes the second mixing cavity. The gap between the protrusion and the receiving cavity constitutes a first flow passage. The second air inlet is connected to the second mixing cavity through the flow passage.

6. The gas-liquid mixing device as described in claim 5, characterized in that, It also includes a housing, the bubble outlet channel passing through the side of the housing, the accommodating cavity and the second flow restrictor disposed inside the housing, and the gap between the accommodating cavity, the second flow restrictor and the housing forming a second flow passage; a liquid suction member is provided at the first end of the housing, and the internal channel of the liquid suction member is connected to the first inlet channel; an air inlet member is sealed and connected to the second end of the housing, and the internal channel of the air inlet member forms the air inlet channel and is connected to the first air inlet and the second air inlet through the second flow passage.

7. A flushing device, comprising a flushing water channel, characterized in that, The flushing water path is provided with a side spray connector and further includes the gas-liquid mixing device as described in any one of claims 1-6. The foam outlet channel is connected to the side spray connector, and the side spray connector can generate negative pressure, so that the flushing water path draws foam into the foam outlet channel.

8. A flushing device as described in claim 7, characterized in that, It also includes a water distribution device, the inlet of which is connected to a water supply source, and the outlet of which is connected to a brush ring water path and a jet water path, respectively. The brush ring water path and the jet water path constitute the flushing water path, and the side spray connector is located in the brush ring water path.

9. A flushing device as described in claim 8, characterized in that, It also includes a switching device for controlling the opening and closing of the bubble outlet channel.

10. A toilet, comprising a toilet body, wherein the toilet body is provided with a brush ring nozzle and a spray nozzle, characterized in that, The toilet body is equipped with a flushing device as described in claim 8 or 9 at its rear end, the brush ring water path is connected to the brush ring nozzle, and the jet water path is connected to the jet nozzle.

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