Liquid mixing device, foaming device and liquid discharging equipment

Abstract

The utility model discloses a liquid mixing device, a foaming device and liquid discharging equipment. The liquid mixing device comprises a body, a pressure source and a control valve assembly. The body is provided with a foaming liquid containing cavity, a mixing cavity and a pressure cavity. The foaming liquid containing cavity is communicated with the mixing cavity through a channel capable of being opened and closed, and the mixing cavity is separated from the pressure cavity through a separator; the pressure source is communicated with the first opening and the second opening, and the pressure source is arranged to be capable of adjusting the pressure of the pressure cavity and the mixing cavity; the control valve assembly is arranged to control opening and closing of the channel, and the control valve assembly can act under driving of the first pressure difference to conduct the channel, so that foaming liquid in the foaming liquid containing cavity can flow to the mixing cavity under driving of the second pressure difference. The liquid mixing device is simple in structure and low in manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of bathroom equipment, and more specifically, to a liquid mixing device, a foaming device and a liquid outlet device. Background Art

[0002] The bathroom equipment in the prior art is usually equipped with a liquid mixing device and a foaming device. For example, the smart toilet is equipped with a ceramic water seal foam anti-splash function. Its main working principle is to mix and dilute the foaming liquid and water through a liquid mixing device, and then rely on foaming stones or mixed gas injection to generate foam. The foam flows to the ceramic water seal surface to form a foam layer of a certain thickness. When an object falls onto the water surface, the splashing water can be covered by the foam, thereby achieving the anti-splash function.

[0003] The prior art liquid mixing device uses two water pumps to extract water and foaming liquid respectively, or designs multiple fluid channels and valves in the body to transport water and foaming liquid respectively, which makes the prior art liquid mixing device complex in structure design, high in failure rate and high in manufacturing cost. Utility Model Content

[0004] The embodiments of the utility model provide a liquid mixing device, a foaming device and a liquid outlet device. The liquid mixing device of the present application is provided with a pressure source which is respectively connected to the first opening of the mixing chamber and the second opening of the pressure chamber, a first pressure difference is formed between the pressure chamber and the mixing chamber, a second pressure difference is formed between the foaming liquid containing chamber and the mixing chamber, a control valve assembly conducts a channel under the drive of the first pressure difference, so that the foaming liquid flows into the mixing chamber under the drive of the second pressure difference and is mixed with the water entering the mixing chamber for foaming. The liquid mixing device of the present application is provided with a pressure source and a channel in the body to realize the liquid mixing function, the structural design is simple, and the manufacturing cost is low.

[0005] The technical solution of the embodiment of the utility model is as follows:

[0006] A liquid mixing device, comprising:

[0007] A body, wherein the body is provided with a foaming liquid containing chamber, a mixing chamber, a pressure chamber, a water inlet and a first opening communicated with the mixing chamber, and a second opening communicated with the pressure chamber; the foaming liquid containing chamber is communicated with the mixing chamber through an openable and closable passage, and the mixing chamber is separated from the pressure chamber by a partition; the foaming liquid containing chamber is configured to contain the foaming liquid, and the water inlet is configured to supply water to the mixing chamber;

[0008] a pressure source, connected to the first opening and the second opening, the pressure source being configured to adjust the pressures of the pressure chamber and the mixing chamber so that a first pressure difference can be formed between the pressure chamber and the mixing chamber, and a second pressure difference can be formed between the foaming liquid containing chamber and the mixing chamber; and

[0009] A control valve assembly is arranged in the body and is configured to control the opening and closing of the channel; and the control valve assembly is configured to be able to operate under the drive of the first pressure difference to open the channel, so that the bubble liquid in the bubble liquid accommodating chamber can flow to the mixing chamber under the drive of the second pressure difference.

[0010] A foaming device comprises the liquid mixing device as described in the above embodiment, and also comprises a water storage part and a foaming component, wherein the water storage part is connected to the water inlet of the main body and is used to provide water to the mixing chamber; the foaming component is connected to the mixing chamber of the main body, and the foaming component can form foam from the mixed liquid of water and foaming liquid output from the mixing chamber.

[0011] A liquid discharge device comprises the foaming device as described in the above embodiment.

[0012] The technical effects of the liquid mixing device of the utility model embodiment are as follows:

[0013] The liquid mixing device of the embodiment of the present application is provided with a pressure source which is respectively connected to the first opening of the mixing chamber and the second opening of the pressure chamber, so that a first pressure difference can be formed between the pressure chamber and the mixing chamber, and a second pressure difference can be formed between the foaming liquid containing chamber and the mixing chamber, and the control valve assembly is driven by the first pressure difference to conduct the channel between the foaming liquid containing chamber and the mixing chamber, and the foaming liquid enters the mixing chamber through the opened channel under the drive of the second pressure difference, and the foaming liquid entering the mixing chamber is mixed with the water entering the mixing chamber from the water inlet to form foam. Therefore, the liquid mixing device of the present application uses a pressure source to transport water and foaming liquid to the mixing chamber, and there is no need to set two water pumps for extracting water and foaming liquid respectively, so that the structural design of the liquid mixing device of the present application is simplified and the manufacturing cost is reduced. Furthermore, the foaming liquid of the present application enters the mixing chamber from the foaming liquid containing chamber through the channel, and the water enters the mixing chamber through the water inlet of the mixing chamber. The present application only needs to set up a channel inside the main body to send water and foaming liquid into the mixing chamber, and does not need to set up complex fluid channels inside the main body for respectively transporting water and foaming liquid to the mixing chamber. The structural design and manufacturing process of the fluid channel inside the main body of the mixing liquid device of the present application are simplified. Furthermore, the pressure source of the present application is respectively connected to the first opening of the mixing chamber and the second opening of the pressure chamber, and the fluid in the mixing chamber is water, or a mixture of water and foaming liquid (the foaming liquid has been diluted), so that the pressure source does not directly contact the viscous foaming liquid, thereby avoiding the internal components of the pressure source being stuck by the viscous foaming liquid and failing.

[0014] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0016] Figure 1 It is a structural schematic diagram of a liquid mixing device in the prior art;

[0017] Figure 2 This is a structural schematic diagram of a liquid mixing device according to an embodiment of the present application installed on a partial structure of a smart toilet;

[0018] Figure 3 This is a schematic structural diagram of a liquid mixing device according to an embodiment of the present application;

[0019] Figure 4 A schematic cross-sectional structure diagram of a liquid mixing device according to an embodiment of the present application without a pressure source;

[0020] Figure 5 for Figure 4 Schematic diagram of the decomposition structure;

[0021] Figure 6 It is a schematic diagram of the cross-sectional structure of a shell according to an embodiment of the present application.

[0022] Figure 7 for Figure 6 A schematic diagram of the three-dimensional structure of the shell observed from one angle;

[0023] Figure 8 for Figure 6 A schematic diagram of the three-dimensional structure of the shell observed from another angle;

[0024] Fig. 9 This is a schematic diagram of the three-dimensional structure of the lower cover of an embodiment of the present application;

[0025] Fig.10 This is a schematic diagram of the structure of a push rod according to an embodiment of the present application;

[0026] Fig.11 This is a schematic diagram of the cross-sectional structure of a separator according to an embodiment of the present application;

[0027] Fig.12 This is a schematic cross-sectional structural diagram of a liquid mixing device according to an embodiment of the present application when the water pump is not working;

[0028] Fig.13 for Fig.12 A schematic diagram of the cross-sectional structure of the liquid mixing device when the water pump starts working;

[0029] Fig.14 for Fig.12 A schematic diagram of the cross-sectional structure of the liquid mixing device when the water pump continues to work for a period of time;

[0030] Fig.15 for Fig.12 A schematic diagram of the cross-sectional structure of the liquid mixing device at the moment when the water pump stops working;

[0031] Fig.16 for Fig.12 A schematic diagram of the cross-sectional structure of the liquid mixing device when the water pump stops working for a period of time;

[0032] Fig.17 A schematic cross-sectional view of a liquid mixing device according to another embodiment of the present application;

[0033] Fig.18 It is a schematic diagram of the three-dimensional structure of a liquid mixing device according to another embodiment of the present application.

[0034] Fig.19 for Fig.18 Schematic diagram of the three-dimensional structure of the liquid mixing device observed from another perspective.

[0035] Reference numerals:

[0036] 100'-Liquid mixing device of the prior art;

[0037] 100-mixing liquid device, 1-body, 11-foaming liquid containing chamber, 12-mixing chamber, 121-first chamber, 122-second chamber, 123-third chamber, 124-fourth chamber, 125-communication port, 13-pressure chamber, 131-mixed liquid outlet, 14-water inlet, 15-first opening, 16-second opening, 17-channel, 171-first water stop port, 172-second water stop port, 18-upper cover, 19-shell, 1 -10-lower cover, 2-pressure source, 21-water pump, 211-water pumping port, 212-water spraying port, 22-pipeline, 221-first pipeline, 222-second pipeline, 3-control valve assembly, 31-push rod, 311-water stop cover plate, 312-annular groove, 313-support part, 32-elastic part, 33-water stop pad, 4-partition, 41-fixed part, 42-deformable part, 421-annular protrusion, 5-sealing part DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the utility model more clear, the embodiments of the utility model will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0039] Please see attached Figure 2 To Attachment Fig.19 The structure diagram of the liquid mixing device 100 according to the embodiment of the present application is shown. Figure 2 The schematic diagram of the structure of the partial structure of the smart toilet is installed with the liquid mixing device 100. The liquid mixing device 100 of the present application can be installed in kitchen and bathroom equipment such as smart toilets, wash basins, and vegetable sinks that require a foaming device to output foam. The liquid mixing device 100 is used to form a mixture of water and foaming liquid, and cooperates with the foaming component to form a foam layer on the water surface. The liquid mixing device 100 installed in the toilet can prevent objects that fall into the water surface inside the ceramic from splashing.

[0040] like Figure 1 As shown, the prior art liquid mixing device 100' usually uses two water pumps 21, which are used to extract water and foaming liquid respectively. The utilization rate of the water pump 21 used to extract the foaming liquid is low, resulting in high manufacturing costs for the prior art liquid mixing device 100'; and the foaming liquid is viscous and may stick to the components inside the water pump 21, causing the water pump 21 to fail. At present, the prior art liquid mixing device has adopted a method of using a water pump 21 to extract water and foaming liquid at the same time, but it is necessary to set multiple fluid channels and multiple valves in the body to control the delivery of water and foaming liquid respectively, making the overall structure of the prior art liquid mixing device 100' complex and having a high failure rate.

[0041] The present application embodiment provides a liquid mixing device 100, such as Figures 3 to 5As shown, it includes a body 1, a pressure source 2, and a control valve assembly 3. The body 1 is provided with a foaming liquid containing chamber 11, a mixing chamber 12, a pressure chamber 13, a water flow inlet 14 and a first opening 15 connected to the mixing chamber 12, and a second opening 16 connected to the pressure chamber 13; the foaming liquid containing chamber 11 is connected to the mixing chamber 12 through an openable and closable channel 17, and the mixing chamber 12 is separated from the pressure chamber 13 by a partition 4; the foaming liquid containing chamber 11 is configured to contain the foaming liquid, and the water flow inlet 14 is configured to supply water to the mixing chamber 12; the pressure source 2 is connected to the first opening 15 and the second opening 16 The pressure source 2 is configured to adjust the pressure of the pressure chamber 13 and the mixing chamber 12, so that a first pressure difference can be formed between the pressure chamber 13 and the mixing chamber 12, and a second pressure difference can be formed between the foaming liquid containing chamber 11 and the mixing chamber 12; the control valve assembly 3 is arranged in the main body 1, and the control valve assembly 3 is configured to control the on-off of the channel 17; and the control valve assembly 3 is configured to be able to operate under the drive of the first pressure difference to conduct the channel 17, so that the foaming liquid in the foaming liquid containing chamber 11 can flow to the mixing chamber 12 under the drive of the second pressure difference.

[0042] Specifically, the liquid mixing device 100 of the embodiment of the present application is provided with a pressure source 2 which is connected to the first opening 15 of the mixing chamber 12 and the second opening 16 of the pressure chamber 13, respectively, so that a first pressure difference (the first pressure difference is a positive pressure difference) can be formed between the pressure chamber 13 and the mixing chamber 12, and a second pressure difference (the second pressure difference is a positive pressure difference) can be formed between the foaming liquid holding chamber 11 and the mixing chamber 12, and the control valve assembly 3 is driven by the first pressure difference to conduct the channel 17 between the foaming liquid holding chamber 11 and the mixing chamber 12. The foaming liquid enters the mixing chamber 12 through the opened channel 17 under the drive of the second pressure difference, and the foaming liquid entering the mixing chamber 12 is mixed with the water entering the mixing chamber 12 from the water inlet 14 to form foam. Therefore, the liquid mixing device 100 of the present application uses a pressure source 2 to transport water and foaming liquid to the mixing chamber 12, and there is no need to set two water pumps for extracting water and foaming liquid respectively, so that the structural design of the liquid mixing device 100 of the present application is simplified and the manufacturing cost is reduced. Furthermore, the foaming liquid of the present application enters the mixing chamber 12 through the channel 17, and the water enters the mixing chamber 12 through the water inlet 14 of the mixing chamber 12. The present application only needs to set a channel 17 inside the main body 1 to deliver water and foaming liquid into the mixing chamber 12, and does not need to set a complex fluid channel inside the main body 1 for delivering water and foaming liquid to the mixing chamber 12 respectively. The structural design and manufacturing process of the fluid channel inside the main body 1 of the mixing liquid device 100 of the present application for delivering water and foaming liquid are simplified. Furthermore, the pressure source 2 of the present application is connected to the first opening 15 of the mixing chamber 12 and the second opening 16 of the pressure chamber 13 respectively. The fluid in the mixing chamber 12 is water, or a mixture of water and foaming liquid (the foaming liquid has been diluted). In this way, the pressure source 2 does not directly contact the viscous foaming liquid, avoiding the problem of the internal components of the pressure source 2 being stuck by the viscous foaming liquid and failing.

[0043] In an exemplary embodiment, Figure 4 and Figures 6 to 8 As shown, a first water stop 171 is provided at one end of the channel 17 connected to the foaming liquid containing chamber 11; the control valve assembly 3 includes a first control valve, which is configured to be able to displace and / or deform under the drive of a first pressure difference to open or close the first water stop 171.

[0044] A second water stop 172 is provided at one end of the channel 17 connected to the mixing chamber 12; the control valve assembly 3 includes a second control valve, and the second control valve includes a partition 4, which is configured to be able to displace and / or deform under the drive of the first pressure difference to open or close the second water stop 172.

[0045] Specifically, the liquid mixing device 100 of the present application, by arranging a first water stop 171 and a first control valve in the foaming liquid containing chamber 11, and arranging a second water stop 172 and a second control valve in the mixing chamber 12, so that the channel 17 for conveying the foaming liquid is provided with two opening and closing valves, so that the liquid mixing device 100 can more accurately and finely control the mixing process of water and foaming liquid and the process of extracting the mixed liquid, which is beneficial to prevent the mixed liquid in the mixing chamber 12 from flowing back to the foaming liquid containing chamber 11.

[0046] It can be understood that the liquid mixing device 100 of the present application can also be provided with a first water stop 171 only at one end of the channel 17 connected to the foaming liquid containing chamber 11, so that the first control valve is displaced and / or deformed under the drive of the first pressure difference to open or close the first water stop 171, and the foaming liquid can flow into the mixing chamber 12 under the drive of the first pressure difference and the action of the first control valve. The first control valve can be configured to include an elastic member and a deformable member structure to open and close the first water stop 171.

[0047] In an exemplary embodiment, Figure 4 and Figure 5 As shown, the first control valve includes a push rod 31 and an elastic member 32. The push rod 31 is inserted into the channel 17. One end of the push rod 31 protruding from the first water stop port 171 is provided with a water stop cover plate 311. The elastic member 32 is configured to respectively resist the water stop cover plate 311 and the body 1. The push rod 31 can drive the water stop cover plate 311 to move under the drive of the first pressure difference and the elastic member 32 so as to open and close the first water stop port 171.

[0048] A water-stop pad 33 is provided between the water-stop cover plate 311 and the first water-stop opening 171 .

[0049] Specifically, the first control valve is configured to include a push rod 31 and an elastic member 32. The structure is simple in design and easy to manufacture and adjust. The push rod 31 is inserted into the channel 17. In addition to being used for the circulation of the foaming liquid, the channel 17 also guides the movement of the push rod 31. The water-stopping pad 33 between the water-stopping cover plate 311 and the first water-stopping port 171 has the function of sealing the first water-stopping port 171, thereby preventing the liquid in the mixing chamber 12 and the channel 17 from flowing back into the foaming liquid containing chamber 11, thereby affecting the liquid discharge effect of the liquid mixing device 100.

[0050] When the thrust of the first pressure difference on the push rod 31 is greater than the thrust of the elastic member 32 on the water stop cover 311, the push rod 31 will move toward the direction of the foaming liquid accommodating chamber 11, and the first water stop port 171 will be opened, so that the foaming liquid in the foaming liquid accommodating chamber 11 can enter the first water stop port 171 and flow into the interior of the channel 17; when the thrust of the first pressure difference is less than the thrust of the elastic member 32 on the water stop cover 311, the push rod 31 will move toward the mixing chamber 12 until the water stop cover 311 or the water stop pad 33 closes the first water stop port 171. At this time, the first water stop port 171 is closed, and the foaming liquid in the foaming liquid accommodating chamber 11 stops flowing into the interior of the channel 17.

[0051] In an exemplary embodiment, Figure 4 , Figure 5 and Fig.10 As shown, an annular groove 312 is provided at one end of the push rod 31 passing through the first water stop opening 171 . The annular groove 312 is arranged on the side of the water stop cover plate 311 facing the first water stop opening 171 , and the water stop pad 33 is installed in the annular groove 312 .

[0052] Specifically, the annular groove 312 is used to accommodate and limit the water stop cover plate 311, so that the connection between the water stop cover plate 311 and the push rod 31 is more firm and stable. Optionally, the water stop pad 33 installed in the annular groove 312 and the push rod 31 are set to be interference fit.

[0053] In an exemplary embodiment, Figure 4 , Figure 5 and Fig.10 As shown, a support portion 313 is provided on the side of the water stop cover plate 311 away from the first water stop opening 171 , and the elastic member 32 is a spring, one end of the spring 32 is sleeved outside the support portion 313 and abuts against the water stop cover plate 311 .

[0054] Specifically, the elastic member 32 is set as a spring, the spring structure design and adjustment are simple, and the manufacturing cost is low. One end of the spring 32 is sleeved on the outside of the support part 313, so that the support part 313 has a guiding and limiting effect on the spring 32.

[0055] In an exemplary embodiment, Fig.10 As shown, the push rod 31 is provided with circumferentially distributed ribs, which extend along the axial direction of the push rod 31, and guide grooves are formed between the ribs, which have the function of guiding and accelerating the flow of fluid. The ribs can guide the push rod 31 to move inside the channel 17, and prevent the push rod 31 from deflecting when moving along the axial direction.

[0056] In an exemplary embodiment, Figure 4 , Figure 5 and Fig.11As shown, the separator 4 includes a fixed portion 41 and a deformable portion 42. The deformable portion 42 is a deformable diaphragm having an annular protrusion 421 on its edge. The radial inner end of the fixed portion 41 is connected to the radial outer end of the annular protrusion 421, and the fixed portion 41 is configured to be fixedly connected to the main body 1.

[0057] The deformable portion 42 can be deformed under the driving force of the first pressure difference and the thrust of one end of the push rod 31 protruding from the second water stop opening 172 , so as to open and close the second water stop opening 172 .

[0058] Specifically, in addition to separating the mixing chamber 12 and the pressure chamber 13, the partition 4 also has the function of opening and closing the second water stop 172. The partition 4 is configured to include a deformable membrane having an annular protrusion 421 on the edge, and the annular protrusion 421 can expand the deformation of the partition 4. An elastic member 32 is provided at one end of the push rod 31 close to the foaming liquid containing chamber 11, so that the push rod 31 is subjected to the thrust of the compression deformation of the elastic member 32 and tends to move toward the pressure chamber 13.

[0059] When the thrust of the first pressure difference on the deformable part 42 is greater than the thrust of the push rod 31 on the deformable part 42, the deformable part 42 will be deflected, deformed and displaced toward the side of the mixing chamber 12, and the push rod 31 will move toward the direction of the foaming liquid holding chamber 11, and the deformable part 42 will block and close the second water stop 172, and the liquid in the channel 17 cannot flow into the mixing chamber 12; when the thrust of the first pressure difference on the deformable part 42 is less than the thrust of the push rod 31 on the deformable part 42, the deformable part 42 will be deflected, deformed and displaced toward the side of the pressure chamber 13, and the push rod 31 will move toward the pressure chamber 11, and the deformable part 42 will open the second water stop 172, and the liquid in the channel 17 will flow into the mixing chamber 12.

[0060] When the deformable portion 42 switches from closing and sealing the second water stop 172 to opening the second water stop 172, the deformable portion 42 will be deformed toward the side of the pressure chamber 13, so that the volume of the mixing chamber 12 increases to form a negative pressure. The negative pressure annular mixing chamber 12 is conducive to the liquid in the channel 17 to flow toward the mixing chamber 12.

[0061] In an exemplary embodiment, Figure 3 As shown, the pressure source 2 includes a water pump 21 and a pipeline 22. The water pump 21 includes a water pumping port 211 and a water spraying port 212. The pipeline 22 includes a first pipeline 221 and a second pipeline 222. The water pumping port 211 is connected to the first opening 15 through the first pipeline 221, and the water spraying port 212 is connected to the second opening 16 through the second pipeline 222.

[0062] Specifically, the water pumping port 211 of the water pump 21 is connected to the first opening 15 of the mixing chamber 12 through the first pipeline 221, and the water spraying port 212 of the water pump 21 is connected to the second opening 16 of the pressure chamber 13 through the second pipeline 222, so that the water pump 21 extracts fluid from the mixing chamber 12 and delivers fluid to the pressure chamber 13, so that a positive pressure difference of a first pressure difference is formed between the pressure chamber 13 and the mixing chamber 12. The number of the first pipeline 221 and the second pipeline 222 is not limited to one, and can be multiple.

[0063] It can be understood that the pressure source 2 can be a water pump or an air pump. By using the air pump to extract air from the mixing chamber 12 and to deliver air to the pressure chamber 13, a positive pressure difference can be formed between the pressure chamber 13 and the mixing chamber 12, thereby forming a positive pressure difference between the foaming liquid containing chamber 11 and the mixing chamber 12.

[0064] In an exemplary embodiment, Figure 3 and Fig.18 As shown, the pressure chamber 13 is provided with a mixed liquid outlet 131 , and the mixed liquid outlet 131 is used to output a mixed liquid of water and foaming liquid from the body 1 .

[0065] Specifically, the water pump 21 is connected to both the mixing chamber 12 and the pressure chamber 13. The mixed liquid of water and foaming liquid extracted from the mixing chamber 12 by the water pump 21 is sent to the pressure chamber 13 and then discharged to the outside of the body 1 through the mixed liquid outlet 131 to form foam. It can be understood that the mixed liquid outlet 131 can also be set on the wall surface of the mixing chamber 12, and can also output the mixed liquid of water and foaming liquid. Fig.18 As shown, since the pressure chamber 13 is located at one side of the body 1, the mixed liquid outlet 131 is arranged on the wall surface of the pressure chamber 13, which is convenient for pipeline layout.

[0066] Figures 12 to 16 The working process of the liquid mixing device 100 according to an embodiment of the present application is shown in sequence. Fig.12 This is a cross-sectional schematic diagram of the liquid mixing device 100 according to an embodiment of the present application when the water pump 21 is not working. Fig.13 is a cross-sectional schematic diagram of the liquid mixing device 100 when the water pump 21 starts to work, Fig.14 is a cross-sectional schematic diagram of the liquid mixing device 100 when the water pump 21 continues to work for a period of time, Fig.15 is a cross-sectional schematic diagram of the liquid mixing device 100 at the moment when the water pump 21 stops working, Fig.16 It is a cross-sectional schematic diagram of the liquid mixing device 100 when the water pump 21 stops working for a period of time. Figures 12 to 16 In Indicates foaming liquid, It means water. The working process of the liquid mixing device 100 of the embodiment of the present application is described in detail below.

[0067] like Fig.12 As shown, when the water pump 21 is not working, the liquid mixing device 100 is in a reset state, the elastic member 32 is in a compressed state, and the elastic restoring force of the elastic member 32 acts on the water stop cover plate 311 of the push rod 31. The push rod 31 drives the water stop pad 33 to move to the side of the pressure chamber 13, and the water stop pad 33 presses on the first water stop port 171 and blocks the first water stop port 171. At this time, the first water stop port 171 is closed, the foaming liquid holding chamber 11 and the mixing chamber 12 are not connected, the foaming liquid holding chamber 11 stores the foaming liquid, the partition 4 is in a free state, the partition 4 is in contact with the push rod 31 or not, and there is no thrust between the partition 4 and the push rod 31.

[0068] like Fig.13 As shown, when the water pump 21 starts to work, the water pumping port 211 of the water pump 21 draws water from the mixing chamber 12 through the first opening 15 of the mixing chamber 12, so that the external water storage component (such as a water tank) inputs water into the mixing chamber 12 through the water inlet 14 of the mixing chamber 12, and the water spraying port 212 of the water pump 21 inputs water into the pressure chamber through the second opening 16 of the pressure chamber 13, and a positive pressure difference of a first pressure difference is formed between the pressure chamber 13 and the mixing chamber 12, and the fixed portion 41 of the partition 4 is fixedly connected to the body 1, and the deformable portion 42 of the partition 4 is bent and deformed toward one side of the mixing chamber 12 under the drive of the first pressure difference, and the middle area of ​​the deformable portion 42 moves toward one side of the mixing chamber 12 and presses against one end of the push rod 31 protruding from the second water stop opening 172, and the deformable portion 4 The push rod 31 is pushed to overcome the elastic force of the elastic member 32 and move toward the side of the foaming liquid containing chamber 11, and the water-stop cover plate 311 and the water-stop pad 33 are separated from the first water-stop opening 171, so that the first water-stop opening 171 is opened. At this time, the foaming liquid containing chamber 11 and the mixing chamber 12 are connected together through the channel 17. Under the influence of the positive pressure difference formed by the water pump 21 pumping water in the mixing chamber 12 to form a second pressure difference between the foaming liquid containing chamber 11 and the mixing chamber 12, the foaming liquid in the foaming liquid containing chamber 11 enters the first water-stop opening 171 and flows into the channel 17. The second water-stop opening 172 is in an open state, and the foaming liquid enters the mixing chamber 12. The foaming liquid entering the mixing chamber 12 is mixed with the water entering from the water inlet 14, and the water pump 21 can pump out the mixed liquid of water and the foaming liquid for subsequent foam formation. The water pump 21 extracts the diluted foaming liquid in the mixing chamber 12, so the internal components of the water pump 21 will not be stuck by the viscous foaming liquid and fail or be damaged. In the process of bending and deforming the deformable portion 42 of the partition 4 toward the mixing chamber 12, it is necessary to overcome the deformation recovery force of the deformable portion 42 itself and the elastic force of the elastic member 32.

[0069] like Fig.14As shown, when the water pump 21 continues to work for a period of time, the deformable portion 42 of the partition 4 continues to bend and deform toward the side of the mixing chamber 12 until the deformable portion 42 blocks the second water stop 172. At this time, the second water stop 172 is closed, and the foaming liquid holding chamber 11 and the mixing chamber 12 are not connected. The foaming liquid in the foaming liquid holding chamber 11 cannot be affected by the negative pressure generated by the water pump 21 extracting water from the mixing chamber 12, and the foaming liquid stops flowing.

[0070] like Fig.15 As shown, when the water pump 21 stops working, the internal fluid flow of the mixing chamber 12 and the pressure chamber 13 loses its power source, and the first pressure difference between the mixing chamber 12 and the pressure chamber 13 gradually disappears. There is no pressure difference on both sides of the deformable part 42 of the partition 4, and the deformable part 42 rebounds under the action of its own elastic restoring force. The second water stop 172 is opened, and the end of the push rod 31 extending into the mixing chamber 12 loses the thrust of the deformable part 42. The push rod 31 moves to the side of the pressure chamber 13 under the action of the elastic part 32, and the first water stop 171 is in an open state, so that the foaming liquid holding chamber 11 and the mixing chamber 12 are connected together. Affected by the rebound of the deformable part 42, the volume of the mixing chamber 12 increases to form a negative pressure, and the mixing chamber 12 will absorb the foaming liquid in the foaming liquid holding chamber 11. The mixing chamber 12 will also absorb water through the water inlet 14, and a mixture of water and foaming liquid will be formed in the mixing chamber 12. At this time, the amount of foaming liquid extracted by the mixing chamber 12 is much less than the amount of foaming liquid extracted by the water pump 21 when it is working.

[0071] like Fig.16 As shown, after the water pump 21 stops working for a few seconds, the deformable part 42 completely returns to its original state, and the elastic member 32 pushes the push rod 31 to move toward the side of the pressure chamber 13 until the water stop cover plate 311 and the water stop pad 33 completely block the first water stop port 171. The first water stop port 171 is closed, and the foaming liquid containing chamber 11 and the mixing chamber 12 are not connected.

[0072] It can be seen that the liquid mixing device 100 of the present application can control the liquid mixing process of the liquid mixing device 100 through the interaction of the first water stop 171, the second water stop 172, the push rod 31, the elastic member 32 and the partition 4, in cooperation with the suction action of the water pump 21. In addition, the first water stop 171 can be sealed and blocked by the water stop pad 33 to prevent the liquid from flowing back into the foaming liquid holding chamber 11 and affecting the normal output of the mixed liquid by the liquid mixing device 100. In addition, at the moment when the water pump 21 stops working, the deformable part 42 switches the second water stop 172 from a sealed state to an open state, and can also suck a part of the foaming liquid, thereby increasing the amount of foaming liquid suction.

[0073] In an exemplary embodiment, Fig.17As shown, the mixing chamber 12 includes a first chamber 121, a second chamber 122, a third chamber 123 and a fourth chamber 124. The first chamber 121 is connected to the foaming liquid containing chamber 11 through a channel 17, and the first chamber 121 and the pressure chamber 13 are separated by a partition 4; the second chamber 122 is connected to the first chamber 121, and the second chamber 122, the third chamber 123 and the fourth chamber 124 are connected to each other through a connecting port 125; the water inlet 14 is connected to the third chamber 123, and the first opening 15 is connected to the fourth chamber 124.

[0074] Specifically, Fig.17 As shown, the mixing chamber 12 is configured to include a plurality of chambers, so that the capacity of the mixing chamber 12 can be expanded. Fig.17 In the embodiment of the liquid mixing device 100, the capacity of the foaming liquid containing chamber 11 is larger than that of the pressure chamber 13. In this way, when the water pump 21 pumps water to make the push rod 31 and the partition 4 produce one action cycle, a large amount of mixed liquid of water and foaming liquid can be formed in the mixing chamber 12.

[0075] The mixing chamber 12 is configured to include a plurality of chambers including a first chamber 121, a second chamber 122, a third chamber 123 and a fourth chamber 124, and connecting ports 125 with different flow areas are provided between the plurality of chambers to expand the mixing ratio range of water and foaming liquid, thereby obtaining foaming liquid mixtures of different concentrations.

[0076] In an exemplary embodiment, Fig.17 As shown, a plurality of communication ports 125 are provided between the second cavity 122 and the fourth cavity 124 , and the flow areas of the plurality of communication ports 125 are different in size; the flow area of ​​the communication port 125 between the third cavity 123 and the fourth cavity 124 is different in size from the flow area of ​​the communication port 125 between the third cavity 123 and the second cavity 122 .

[0077] Specifically, when the water pump 21 starts working, negative pressure is formed in the mixing chamber 12, and the foaming liquid enters the first chamber 121 through the channel 17, and then enters the second chamber 122 from the first chamber 121. The second chamber 122 occupies most of the space of the mixing chamber 12. After the foaming liquid is sucked into the first chamber 121, it dissolves rapidly, and the solution in the second chamber 122 dissolves evenly. Among the three chambers, the second chamber 122, the third chamber 123 and the fourth chamber 124, the solubility of the foaming liquid in the second chamber 122 is the highest. Under the negative pressure of the water pump 21, water is pumped into the third chamber 123 from the water inlet 14. A connecting port 125 is provided between the third chamber 123 and the fourth chamber 124, and a connecting port 125 is provided between the third chamber 123 and the second chamber 122. Affected by the different flow areas of different connecting ports 125, the water in the third chamber 123 is divided into two flow paths, which flow into the second chamber 122 and the fourth chamber 124 respectively, most of which flow into the fourth chamber 124. The solubility of the foaming liquid in the third chamber 123 is the lowest. Two connecting ports 125 with different flow areas are provided between the fourth chamber 124 and the second chamber 122, and the high-solubility liquid in the second chamber 122 flows into the fourth chamber 124 from the two connecting ports 125. Three fluids flow into the fourth chamber 124 respectively. The mixed liquid flowing from the third chamber 123 into the fourth chamber 124 has the lowest concentration and the largest flow rate. The flow rate of a connecting port 125 flowing from the second chamber 122 into the fourth chamber 124 is moderate and the concentration is high. The flow rate of another connecting port 125 flowing from the second chamber 122 into the fourth chamber 124 is the smallest and the concentration is high. The three fluids are fully swirled and mixed in the fourth chamber 124 and are finally pumped away by the pumping port 211 of the pumping pump 21. After a period of pumping by the pumping pump 21, the flow rates of the three water flows do not change, but the solubility at the connecting position between the second chamber 122 and the third chamber 123 decreases the fastest, and the concentration at the connecting port 125 with a larger flow area between the second chamber 122 and the fourth chamber 124 also decreases rapidly. The flow rate at the connecting port 125 with a smaller flow area between the second chamber 122 and the fourth chamber 124 is the lowest, the dilution ratio is the lowest, and the concentration does not change much, which can still meet the solubility requirements of the mixture in the fourth chamber 124 and ensure the foaming quality. The small diameter size of the communication port 125 with a smaller flow area between the second cavity 122 and the fourth cavity 124 ensures the flow rate ratio, thereby maintaining the concentration ratio of the foaming liquid for a long time.

[0078] In an exemplary embodiment, Figure 4 and Figure 5 As shown, the main body 1 includes an upper cover 18, a shell 19 and a lower cover 1-10 which are connected in sequence, the channel 17 is arranged in the shell 19, the partition 4 is arranged between the shell 19 and the lower cover 1-10, the partition 4 and the lower cover 1-10 enclose a pressure chamber 13, the upper cover 18 is connected to one end of the shell 19 away from the lower cover 1-10, and the upper cover 18 and the shell 19 enclose a foaming liquid containing chamber 11.

[0079] The first opening 15 and the water inlet 14 are both provided in the housing 19 , and the second opening 16 is provided in the lower cover 1 - 10 .

[0080] Specifically, the main body 1 is designed as a split structure, which is convenient for processing and manufacturing the main body 1 and also convenient for the operator to assemble the push rod 31 , the elastic member 32 and the partition 4 into the main body 1 .

[0081] In an exemplary embodiment, Figure 4 As shown, a sealing member 5 is provided at the connection between the upper cover 18 and the housing 19 .

[0082] Specifically, a seal 5 is provided between the upper cover 18 and the housing 19 to prevent the foaming liquid in the foaming liquid accommodating chamber 11 from leaking to the outside of the body 1 .

[0083] The present application embodiment provides a foaming device, such as Fig.18 and Fig.19 As shown, it includes a mixing liquid device 100 as described in any one of the above embodiments, and also includes a water storage component (not shown in the figure) and a foaming component (not shown in the figure), the water storage component is connected to the water inlet 14 of the main body 1, and is used to provide water to the mixing chamber 12; the foaming component is connected to the mixing chamber 12 of the main body 1, and the foaming component can form foam from the mixed liquid of the water output from the mixing chamber 12 and the foaming liquid.

[0084] Specifically, the foaming device provided in the embodiment of the present application includes the liquid mixing device 100 described in any one of the above embodiments, and therefore has the structural features and advantages of the liquid mixing device 100 described in any one of the above embodiments, which will not be elaborated here.

[0085] An embodiment of the present application provides a liquid discharge device, comprising a foaming device as described in the above embodiment.

[0086] Specifically, the liquid discharge device provided in the embodiment of the present application includes the foaming device as described in the above embodiment, and therefore has the structural features and advantages of the foaming device and the liquid mixing device 100 described in the above embodiment, which will not be repeated here.

[0087] Optionally, the liquid outlet device can be configured as a smart toilet, vegetable sink, bathtub, wash basin or other kitchen and bathroom equipment.

[0088] In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0089] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", and "assembly" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection", and "fixed connection" can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0090] Although the implementation methods disclosed in the utility model are as above, the above contents are only implementation methods adopted to facilitate the understanding of the utility model, and are not used to limit the utility model. Any technician in the field to which the utility model belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the utility model, but the scope of patent protection of the utility model shall still be defined by the attached claims.

Claims

1. A liquid mixing device, characterized in that: include: A body, wherein the body is provided with a foaming liquid containing chamber, a mixing chamber, a pressure chamber, a water flow inlet and a first opening communicated with the mixing chamber, and a second opening communicated with the pressure chamber; the foaming liquid containing chamber is communicated with the mixing chamber through an openable and closable passage, and the mixing chamber is separated from the pressure chamber by a partition; The foaming liquid containing chamber is configured to contain the foaming liquid, and the water inlet is configured to supply water to the mixing chamber; a pressure source, connected to the first opening and the second opening, the pressure source being configured to adjust the pressures of the pressure chamber and the mixing chamber so that a first pressure difference can be formed between the pressure chamber and the mixing chamber, and a second pressure difference can be formed between the foaming liquid containing chamber and the mixing chamber; and A control valve assembly is arranged in the body and is configured to control the opening and closing of the channel; and the control valve assembly is configured to be able to operate under the drive of the first pressure difference to open the channel, so that the bubble liquid in the bubble liquid accommodating chamber can flow to the mixing chamber under the drive of the second pressure difference.

2. The liquid mixing device according to claim 1, characterized in that: A first water stop is provided at one end of the channel connected to the foaming liquid containing chamber; the control valve assembly includes a first control valve, which is configured to be displaced and / or deformed under the drive of the first pressure difference to open or close the first water stop; A second water stop is provided at one end of the channel connected to the mixing chamber; the control valve assembly includes a second control valve, the second control valve includes the partition, and the partition is configured to be able to displace and / or deform under the drive of the first pressure difference to open or close the second water stop.

3. The liquid mixing device according to claim 2, characterized in that: The first control valve includes a push rod and an elastic member, the push rod is inserted into the channel, one end of the push rod protruding from the first water stop is provided with a water stop cover plate, the elastic member is configured to respectively abut against the water stop cover plate and the body, the push rod can drive the water stop cover plate to move under the drive of the first pressure difference and the elastic member, so as to open and close the first water stop; A water-stop pad is provided between the water-stop cover plate and the first water-stop opening.

4. The liquid mixing device according to claim 3, characterized in that: The separator comprises a fixed portion and a deformable portion, the deformable portion is a deformable membrane having an annular protrusion on its edge, the radial inner end of the fixed portion is connected to the radial outer end of the annular protrusion, and the fixed portion is configured to be fixedly connected to the body; The deformable portion can be deformed under the driving force of the first pressure difference and the thrust of one end of the push rod protruding from the second water stop opening, so as to open and close the second water stop opening.

5. The liquid mixing device according to any one of claims 1 to 4, characterized in that: The pressure source includes a water pump and a pipeline, the water pump includes a water pumping port and a water spraying port, the pipeline includes a first pipeline and a second pipeline, the water pumping port is connected to the first opening through the first pipeline, and the water spraying port is connected to the second opening through the second pipeline.

6. The liquid mixing device according to claim 5, characterized in that: The pressure chamber is provided with a mixed liquid outlet, and the mixed liquid outlet is used to output a mixed liquid of water and foaming liquid from the main body.

7. The liquid mixing device according to any one of claims 1 to 4, characterized in that: The mixing chamber includes a first chamber, a second chamber, a third chamber and a fourth chamber, the first chamber is connected to the foaming liquid containing chamber through the channel, and the first chamber and the pressure chamber are separated by the partition; the second chamber is connected to the first chamber, and the second chamber, the third chamber and the fourth chamber are connected to each other through a connecting port; the water inlet is connected to the third chamber, and the first opening is connected to the fourth chamber.

8. The liquid mixing device according to claim 7, characterized in that: A plurality of communication ports are provided between the second cavity and the fourth cavity, and the flow areas of the plurality of communication ports are different; the flow area of ​​the communication port between the third cavity and the fourth cavity is different from that of the communication port between the third cavity and the second cavity.

9. The liquid mixing device according to any one of claims 1 to 4, characterized in that: The body comprises an upper cover, a shell and a lower cover which are connected in sequence, the channel is arranged in the shell, the partition is arranged between the shell and the lower cover, the partition and the lower cover enclose the pressure chamber, the upper cover is connected to an end of the shell away from the lower cover, and the upper cover and the shell enclose the foaming liquid containing chamber; The first opening and the water inlet are both arranged on the housing, and the second opening is arranged on the lower cover.

10. A foaming device, characterized in that: It comprises a liquid mixing device as described in any one of claims 1 to 9, and also comprises a water storage component and a foaming component, wherein the water storage component is connected to the water inlet of the main body and is used to provide water to the mixing chamber; the foaming component is connected to the mixing chamber of the main body, and the foaming component can form foam from a mixture of water and foaming liquid output from the mixing chamber.

11. A liquid discharge device, characterized in that: It comprises the foaming device as claimed in claim 10.

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