Mechanical liquid mixing device, foaming device and foaming closestool

Abstract

A mechanical liquid mixing device, a foaming device and a foaming closestool comprise a body, and the body is provided with a liquid storage cavity and a mixing cavity; the liquid storage cavity is provided with a liquid outlet channel; the mixing cavity is provided with a water inlet channel; the device further comprises a first valve, a second valve, a buoy assembly, a first abutting piece and a second abutting piece. The first valve is arranged in the liquid outlet channel; the second valve is arranged in the water inlet channel; the buoy assembly is arranged in the mixing cavity and can ascend or descend under the action of buoyancy and gravity; the first abutting piece and the second abutting piece are inserted into the liquid outlet channel and the water inlet channel correspondingly and are in transmission connection with the buoy assembly correspondingly so as to drive the first valve and the second valve to act to add foaming liquid and clear water into the mixing cavity to form mixed liquid. Liquid adding and water adding actions are driven through mechanical linkage, so that the constant concentration of mixed liquid is ensured, meanwhile, the pipeline structure is simplified, the manufacturing cost is reduced, and the operation reliability and long-term use stability of the device are improved.

Description

Technical Field

[0001] The invention relates to the field of sanitary ware, in particular to a mechanical liquid mixing device, a foaming device and a foaming toilet. Background Art

[0002] The foaming liquid filling system of existing smart toilets usually adopts a mixing method with two water pumps working together. Specifically, after the first water pump extracts the foaming liquid from the liquid storage container and injects it into the mixing water chamber, the second water pump simultaneously extracts clean water and injects it into the same mixing water chamber for dilution and mixing, and finally achieves foaming through the extrusion mechanism.

[0003] The hardware configuration of dual water pumps in the prior art has the following defects: the parallel use of two independent water pumps not only increases the material cost and installation space occupation, but also requires high flow matching accuracy between the water pumps, and must rely on the PCB control board to coordinate the start and stop timing and power parameters of the two. This not only complicates the circuit system, but also increases the difficulty of control program development and hardware troubleshooting. In long-term use, the performance degradation of a single water pump can easily cause the mixing ratio to lose control.

[0004] In addition, the existing mixing method has inherent defects in the control logic level. The coordinated operation of the two water pumps requires the preset fixed pumping ratio parameters, but in actual use, due to factors such as pipeline pressure fluctuations and changes in liquid viscosity, the preset parameters are difficult to dynamically adapt to different working conditions, which ultimately leads to the inability to maintain a stable concentration of the mixed liquid. Summary of the invention

[0005] The main purpose of the present invention is to overcome the above-mentioned defects in the prior art and to propose a mechanical liquid mixing device, a foaming device and a foaming toilet, which drive the liquid adding and water adding actions through mechanical linkage to ensure the constant concentration of the mixed liquid, while simplifying the pipeline structure and reducing the manufacturing cost, thereby improving the operation reliability and long-term use stability of the device.

[0006] The present invention adopts the following technical solution:

[0007] A mechanical liquid mixing device comprises a main body, which is provided with a liquid storage chamber and a mixing chamber; the liquid storage chamber is provided with a liquid outlet channel connected to the mixing chamber; the mixing chamber is provided with a water inlet channel; it is characterized in that it also comprises a first valve, a second valve, a float assembly, a first push piece and a second push piece; the first valve is arranged in the liquid outlet channel to open or close the liquid outlet channel; the second valve is arranged in the water inlet channel to open or close the water inlet channel; the float assembly is arranged in the mixing chamber and can rise or fall under the action of buoyancy and gravity; the first push piece and the second push piece are respectively inserted into the liquid outlet channel and the water inlet channel, and the first push piece and the second push piece are respectively connected to the float assembly in transmission to drive the first valve and the second valve to add foaming liquid and clean water into the mixing chamber to form a mixed liquid.

[0008] When the buoy assembly is at the low water level in the mixing chamber, the first abutting member drives the first valve to open the communication between the liquid outlet channel and the liquid storage chamber, and the second abutting member drives the second valve to open the water inlet channel; when the buoy assembly is at the high water level, the first abutting member drives the first valve to close the communication between the liquid outlet channel and the liquid storage chamber, and the second abutting member drives the second valve to close the water inlet channel.

[0009] The first valve and the second valve are respectively provided with a liquid outlet and a water inlet, and the position of the water inlet in the height direction of the body is lower than the position of the liquid outlet in the height direction of the body; then the timing when the first abutting member drives the first valve to open the liquid outlet is later than the timing when the second abutting member drives the second valve to open the water inlet, and the timing when the first abutting member drives the first valve to close the liquid outlet is earlier than the timing when the second abutting member drives the second valve to close the water inlet.

[0010] The buoy assembly includes a buoy and two transmission gears; the buoy is arranged to be movable along the height direction of the body under the action of buoyancy and gravity, and the buoy is respectively provided with a first rack extending along the height direction of the body on the sides opposite to the first abutting member and the second abutting member; the first abutting part and the second abutting part are respectively provided with a second rack; the two transmission gears are rotatably connected to the inner wall of the mixing chamber, one transmission gear is respectively meshed with the first rack and the second rack of the first abutting member, and the other transmission gear is respectively meshed with the first rack and the second rack of the second abutting member.

[0011] The first abutting member includes an abutting part and a transmission rod; one end of the abutting part opposite to the first valve is partially inserted into the liquid outlet channel and is provided with a convex part to abut against the first valve to open the liquid outlet channel, or to loosen the first valve to close the liquid outlet channel; the transmission rod is connected to the abutting part and is in transmission connection with the buoy assembly.

[0012] The first abutting member further includes an elastic sleeve sleeved on the outer periphery of the abutting part; when the first abutting member drives the first valve to open the liquid outlet channel, the elastic sleeve abuts against the outer periphery of the port of the liquid outlet channel to seal the end of the liquid outlet channel, so that the quantitative foaming liquid from the liquid storage chamber is located in the liquid outlet channel, and when the first abutting member moves until the elastic sleeve disengages from the port of the liquid outlet channel, the quantitative foaming liquid in the liquid outlet channel enters the mixing chamber.

[0013] The second abutting member includes an abutting part and a transmission rod; one end of the abutting part opposite to the second valve is partially inserted into the water inlet channel and is provided with a convex part to abut against the second valve to open the water inlet channel, or to loosen the second valve to close the water inlet channel; the transmission rod is connected to the abutting part and is in transmission connection with the buoy assembly.

[0014] In the height direction of the body, the liquid storage chamber is located above the mixing chamber and its top is provided with an opening; further includes a cover plate, and the cover plate covers the opening end of the liquid storage chamber and is provided with a liquid injection port.

[0015] A foaming device, including a liquid suction component provided with a liquid suction pipe, is characterized in that it further includes a mechanical liquid mixing device, and one end of the liquid suction pipe extends into the mixing chamber from the top in the height direction of the mixing chamber to suck the mixed liquid.

[0016] The liquid suction component includes a control valve and a Venturi unit; the Venturi unit is located below the mixing chamber and is provided with an input port, a liquid suction port, and a foaming port; the input port is connected to the control valve, the liquid suction port is connected to the other end of the liquid suction pipe, and the foaming port is used to output foam; when the control valve opens to discharge water, the water flow enters the Venturi unit and then accelerates through the liquid suction port, generating a negative pressure around the liquid suction port to suck the mixed liquid from the liquid storage chamber through the liquid suction pipe to mix with the water flow to generate a large amount of bubbles, which are discharged from the foaming port.

[0017] A foaming toilet, including a toilet body, the toilet body is provided with a water tank, a water inlet valve, and a drain valve; it further includes a foaming device installed in the water tank, the foaming port is connected with a foaming pipe, and the foaming end of the foaming pipe communicates with the toilet bowl of the toilet body, and the water replenishing port of the water inlet valve is connected with a water inlet channel to provide clean water for the water inlet channel; one of the water outlet ports of the water inlet valve is connected to the control valve.

[0018] When the drain valve drains water, as the water level in the water tank drops, the water inlet valve starts to supply water, and the water replenishing port of the water inlet valve outputs clean water to the mixing device for mixing to generate a mixed liquid; then the foaming device is controlled to start foaming, and the clean water from the water inlet valve enters the foaming device, and the liquid suction pipe is coordinated to suck the mixed liquid from the mixing chamber for foaming and then sent to the toilet bowl of the toilet body.

[0019] As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In the present invention, a first valve, a second valve, a floating component, a first abutting member, and a second abutting member are arranged in the mixing chamber; the first valve and the second valve are respectively arranged in the liquid outlet channel and the water inlet channel, the floating component is in transmission connection with the abutting member and the second abutting member and can rise or fall under the action of buoyancy and gravity, and the first valve and the second valve are driven to act by the movement of the first abutting member and the second abutting member to add foaming liquid and clean water into the mixing chamber to form a mixed liquid, and the liquid adding and water adding actions are driven by mechanical linkage, so as to ensure the constant concentration of the mixed liquid, simplify the pipeline structure, reduce the manufacturing cost, and improve the operation reliability and long-term use stability of the device.

[0021] 2. In the present invention, when the floating component is located at the low water level in the mixing chamber, the liquid outlet channel and the water inlet channel are opened; when the floating component is located at the high water level, the liquid outlet channel and the water inlet channel are closed, and the opening and closing of the valve are automatically triggered according to the liquid level height, without external power, reducing the dependence on electronic components and having strong anti-interference ability.

[0022] 3. In the present invention, the timing of the first abutting member driving the first valve to open the liquid outlet is later than the timing of the second abutting member driving the second valve to open the water inlet, so that the clean water enters the mixing chamber before the foaming liquid, and the end of the liquid outlet channel is closed before the first valve opens, preventing the foaming liquid from directly flowing into the mixing chamber; the timing of the first abutting member driving the first valve to close the liquid outlet is earlier than the timing of the second abutting member driving the second valve to close the water inlet, ensuring the stability of the mixing liquid ratio.

[0023] 4. In the present invention, the floating cylinder assembly is provided with a floating cylinder and a transmission gear; the floating cylinder is in transmission cooperation with the first abutting member and the second abutting member through the transmission gear, and the change in the floating cylinder liquid level can be instantaneously transmitted to the valve action, with a simple structure and low cost.

[0024] 5. In the present invention, the first abutting member and the second abutting member include an abutting portion and a transmission rod; the abutting portion is provided with a convex portion to open or close the first valve or the second valve; an elastic sleeve is further sleeved on the first abutting member, and the elastic sleeve can abut against the outer periphery of the port of the liquid outlet channel to close the end of the liquid outlet channel, so that the quantitative foaming liquid from the liquid storage chamber is located in the liquid outlet channel, and when the elastic sleeve disengages from the port of the liquid outlet channel, the quantitative foaming liquid is put into the mixing chamber, thus ensuring the precise dosage delivery for each action. The closing of the liquid storage - quantitative release action is synchronously completed through the movement of the first abutting member, eliminating the need for an independent metering pump or a buffer container and reducing the complexity of the pipeline.

[0025] 6. In the present invention, the liquid suction assembly utilizes the Venturi effect to achieve liquid suction and mixing. When the water flow accelerates, a stable negative pressure is generated at the liquid suction port, ensuring sufficient mixing liquid is sucked from the mixing chamber for foaming, with uniform and delicate bubble generation and improved foam coverage effect.

[0026] 7. In the present invention, the foaming device is integrated inside the water tank, saving space and facilitating maintenance; when the water tank is filled with water, water is supplied to the foaming device and the liquid suction device synchronously, and the change in water level automatically triggers the mixing liquid preparation and foaming processes, realizing fully automated control. Description of the Drawings

[0027] Figure 1 is an exploded view of the mixing device of the present invention;

[0028] Figure 2 is a cross - sectional view of the mixing device of the present invention (the floating cylinder assembly is at a low water level);

[0029] Figure 3 is a cross - sectional view of the mixing device of the present invention (the floating cylinder assembly is at a high water level);

[0030] Figure 4 is a structural diagram of the foaming device;

[0031] Figure 5 is a structural diagram of the liquid suction device;

[0032] Figure 6 is Figure 5 a sectional view of;

[0033] Figure 7 is the structure of a foaming toilet Figure 1 ;

[0034] Figure 8 is the structure of a foaming toilet Figure 2 ;

[0035] Figure 9 is Figure 8 a partial sectional view of;

[0036] Wherein:

[0037] 10. Body; 11. Liquid storage cavity; 12. Mixing cavity; 13. Water inlet channel; 14. Liquid outlet channel; 15. Cover plate; 16. Liquid injection port; 17. Rib; 20a. First valve; 20b. Second valve; 21. Liquid outlet; 22. Water inlet; 23. Push rod; 30. Float assembly; 31. Float; 32. Transmission gear; 33. First rack; 40a. First abutting member; 40b. Second abutting member; 41. Abutting part; 42. Transmission rod; 43. Convex part; 44. Second rack; 45. Elastic sleeve; 50. Liquid suction assembly; 51. Liquid suction pipe; 52. Venturi unit; 53. Control valve; 54. Input port; 55. Liquid suction port; 56. Foam outlet; 57. Air inlet; 60. Toilet body; 61. Ceramic body; 62. Water tank; 63. Water inlet valve; 64. Drain valve; 65. Water outlet; 66. Water replenishing port; 67. Foam outlet pipe.

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Specific Embodiments

[0039] The present invention will be further described below through specific embodiments.

[0040] Refer to Figures 1 to 3, a mechanical liquid mixing device, including a main body 10, a first valve 20a, a second valve 20b, a float assembly 30, a first abutting member 40a, a second abutting member 40b, etc. The main body 10 adopts a hollow structure, and a liquid storage cavity 11 and a mixing cavity 12 are arranged inside. The liquid storage cavity 11 and the mixing cavity 12 can be formed by partitioning the internal space of the main body 10, or can be installed inside the main body 10 by combining independent cavity structures. The liquid storage cavity 11 is used to hold the foaming liquid, and it is provided with a liquid outlet channel 14 communicating with the mixing cavity 12, and a water inlet channel 13 is arranged between the liquid storage cavity 11 and the mixing cavity 12. The liquid outlet channel 14 is used to input the foaming liquid into the mixing cavity 12. The mixing cavity 12 is also provided with a water inlet channel 13, and the water inlet channel 13 is used to input clean water into the mixing cavity 12. The liquid outlet channel 14 and the water inlet channel 13 can be structures formed inside the main body 10, or can be independent channel structures arranged inside the main body 10.

[0041] Among them, in the height direction of the main body 10, the liquid storage cavity 11 is located above the mixing cavity 12, and their sizes can be the same or different. The top of the liquid storage cavity 11 is provided with an opening, and further includes a cover plate 15, and the cover plate 15 covers the opening end of the liquid storage cavity 11. The cover plate 15 can be sleeved on the top of the liquid storage cavity 11 in an openable and closable manner so as to inject the foaming liquid into the liquid storage cavity 11. Or the cover plate 15 can also be integrally formed with the main body 10 or detachably and fixedly connected. A liquid injection port 16 can also be provided on the cover plate 15 for injecting the foaming liquid, and the liquid injection port 16 is sealed with a sealing plug. The top of the main body 10 can also be set as an opening, and the top of the liquid storage cavity 11 can be flush or not flush with the top of the main body 10. In addition to closing the liquid storage cavity 11, the cover plate 15 can also cover other areas of the top of the main body 10 except the liquid storage cavity 11.

[0042] The first valve 20a is arranged in the liquid outlet channel 14, and the first valve 20a can be actuated to open or close the liquid outlet channel 14. The second valve 20b is arranged in the water inlet channel 13, and the second valve 20b can be actuated to open or close the water inlet channel 13. In order to avoid backflow, the first valve 20a and the second valve 20b can be set as one-way valve structures, that is, when the first valve 20a opens the liquid outlet channel 14, the liquid in the liquid storage cavity 11 can enter the liquid outlet channel 14, and the liquid in the liquid outlet channel 14 cannot enter the liquid storage cavity 11; when the second valve 20b opens the liquid outlet channel 14, the clean water in the water inlet channel 13 can enter the mixing cavity, and the water in the mixing cavity cannot enter the water inlet channel 13.

[0043] The first valve 20a and the second valve 20b are respectively provided with a liquid outlet 21 and a water inlet 22. The first valve 20a and the second valve 20b are respectively provided with a push rod 23, and the push rod 23 is penetrated through the liquid outlet 21 or the water inlet 22. By pushing or loosening the push rod 23, the liquid outlet 21 is opened or closed to realize opening or closing of the first valve 20a, and then opening or closing of the liquid outlet channel 14; by pushing or loosening the push rod 23, the water inlet 22 is opened or closed to realize opening or closing of the second valve 20b, and then opening or closing of the water inlet channel 13.

[0044] The float assembly 30 is arranged in the mixing chamber 12 and can rise or fall under the action of buoyancy and gravity. The first push-up member 40a and the second push-up member 40b are respectively inserted into the liquid outlet channel 14 and the water inlet channel 13. The first push-up member 40a and the second push-up member 40b are respectively connected to the float assembly 30 in a transmission manner to drive the first valve 20a and the second valve 20b to operate to add foaming liquid and clean water into the mixing chamber 12 to form a mixed liquid. A transmission structure is arranged between the float assembly 30 and the first push-up member 40a and the second push-up member 40b. The rise or fall of the float assembly 30 is transmitted to the first push-up member 40a and the second push-up member 40b through the transmission structure, and the first valve 20a and the second valve 20b are further driven to operate, thereby realizing the mechanical linkage driving of liquid and water addition.

[0045] Further, it is configured that when the float assembly 30 is located at a low water level of the mixing chamber 12, the first push member 40a drives the first valve 20a to open the connection between the liquid outlet channel 14 and the liquid storage chamber 11, and the second push member 40b drives the second valve 20b to open the water inlet channel 13, that is, when there is no mixed liquid in the mixing chamber 12 or the mixed liquid is lower than the set low water level, the mixing device starts to enter the stage of adding foaming liquid and adding clean water. When the float assembly 30 is located at a high water level, the first push member 40a drives the first valve 20a to close the connection between the liquid outlet channel 14 and the liquid storage chamber 11, and the second push member 40b drives the second valve 20b to close the water inlet channel 13, that is, when the mixed liquid in the mixing chamber 12 reaches the set high water level, the mixing device stops adding foaming liquid and adding clean water. Among them, the float assembly 30 is located at a low water level in the mixing chamber 12, which means that the floatable parts of the float assembly 30 are at the lowest water level position in the height direction of the mixing chamber 12, and the float assembly 30 is located at a high water level, which means that the floatable parts of the float assembly 30 are at the highest water level position in the height direction of the mixing chamber 12.

[0046] In the present invention, the buoy component 30 includes a buoy 31 and two transmission gears 32. The buoy 31 is arranged to move along the height direction of the main body 10 under the action of buoyancy and gravity. The area of the mixing chamber 12 where the buoy 31 is located can be arranged to be generally adapted to the shape of the buoy 31 to ensure the accuracy and reliability of the moving direction of the buoy 31. A plurality of ribs 17 extending along the height direction of the mixing chamber 12 can also be arranged on the inner wall of the mixing chamber 12. The plurality of ribs 17 are circumferentially spaced apart along the inner wall of the mixing chamber 12, so as to reduce the contact area between the buoy 31 and the inner wall of the mixing chamber 12, and the quantity can be adjusted. As required, other guiding structures can also be arranged between the buoy 31 and the inner wall of the mixing chamber 12 to guide the movement of the buoy 31, such as chutes or guide rails, etc.

[0047] The first abutting member 40a and the second abutting member 40b are located near the outer periphery of the buoy 31 in the mixing chamber 12. The sizes of the areas of the mixing chamber 12 where the first abutting member 40a and the second abutting member 40b are located are arranged to be adapted to the first abutting member 40a and the second abutting member 40b. As required, guiding structures can also be arranged on the inner wall of the mixing chamber 12 to guide or limit the moving direction of the first abutting member 40a and the second abutting member 40b, etc. The transmission mode between the buoy 31 and the first abutting member 40a and the second abutting member 40b can be realized by common modes, such as gear and rack transmission, or other modes that can make the moving direction of the buoy 31 opposite to the moving directions of the first abutting member 40a and the second abutting member 40b.

[0048] In this embodiment, taking the gear and rack transmission as an example, the buoy 31 is respectively provided with a first rack 33 extending along the height direction of the main body 10 on the sides opposite to the first abutting member 40a and the second abutting member 40b. The first abutting member 40a and the second abutting member 40b are respectively provided with corresponding second racks 44. The two transmission gears 32 are rotatably connected to the inner wall of the mixing chamber 12. One transmission gear 32 is respectively meshed and connected with the first rack 33 on one side of the buoy 31 and the second rack 44 of the first abutting member 40a, and the other transmission gear 32 is respectively meshed and connected with the first rack 33 on the other side of the buoy 31 and the second rack 44 of the second abutting member 40b. When the buoy 31 rises, the first rack 33 drives the transmission gear 32 to rotate counterclockwise, and the transmission gear 32 drives the second rack 44 to descend, then the first abutting member 40a and the second abutting member 40b descend; on the contrary, when the buoy 31 descends, the first rack 33 drives the transmission gear 32 to rotate clockwise, and the transmission gear 32 drives the second rack 44 to rise, and the first abutting member 40a and the second abutting member 40b rise.

[0049] Further, the first abutting member 40a includes an abutting portion 41 and a transmission rod 42. One end of the abutting portion 41 opposite to the first valve 20a is partially inserted into the liquid outlet channel 14 and is provided with a convex portion 43. By abutting the push rod 23 of the first valve 20a with the convex portion 43, the liquid outlet 21 is opened to open the liquid outlet channel 14, and the foaming liquid in the liquid storage cavity 11 can enter the liquid outlet channel 14. Or by releasing the push rod 23 of the first valve 20a, the liquid outlet 21 is closed to close the liquid outlet channel 14, and the foaming liquid in the liquid storage cavity 11 cannot enter the liquid outlet channel 14. The end of the convex portion 43 of the abutting portion 41 is arranged to be conical-like for easy insertion into the liquid outlet channel 14. The transmission rod 42 is connected to the end of the abutting portion 41 far from the first valve 20a, and a second rack 44 is arranged on the transmission rod 42 and is in transmission connection with the float 31 of the float assembly 30 through the second rack 44.

[0050] In this embodiment, in order to ensure that the foaming liquid added each time is a fixed amount, an elastic sleeve 54 is further arranged on the first abutting member 40a. The elastic sleeve 54 is fixedly sleeved on the outer periphery of the abutting portion 41 and can be compressed or expanded, and it can adopt a corrugated seal. When the convex portion 43 of the first abutting member 40a abuts against the push rod 23 to drive the first valve 20a to open the liquid outlet channel 14, the elastic sleeve 54 abuts against the outer periphery of the end of the liquid outlet channel 14 to seal the end of the liquid outlet channel 14, so that the fixed amount of foaming liquid from the liquid storage cavity 11 is located in the liquid outlet channel 14. Until the first abutting member 40a moves to the position where the elastic sleeve 54 disengages from the port of the liquid outlet channel 14, the fixed amount of foaming liquid in the liquid outlet channel 14 enters the mixing cavity 12.

[0051] The second abutting member 40b includes an abutting portion 41 and a transmission rod 42. One end of the abutting portion 41 opposite to the second valve 20b is partially inserted into the water inlet channel 13 and is provided with a convex portion 43. By abutting the push rod 23 of the second valve 20b with the convex portion 43, the water inlet 22 is opened to open the water inlet channel 13, and the foaming liquid in the liquid storage cavity 11 can enter the water inlet channel 13. Or by releasing the push rod 23 of the second valve 20b, the water inlet 22 is closed to close the water inlet channel 13, and the foaming liquid in the liquid storage cavity 11 cannot enter the water inlet channel 13. The end of the convex portion 43 of the abutting portion 41 is arranged to be conical-like for easy insertion into the water inlet channel 13. The transmission rod 42 is connected to the end of the abutting portion 41 far from the second valve 20b, and a second rack 44 is arranged on the transmission rod 42 and is in transmission connection with the float 31 of the float assembly 30 through the second rack 44.

[0052] In the present invention, since the amounts of the foaming liquid and the clear water required for the mixed liquid are different, the timing of adding the foaming liquid and the clear water into the mixing cavity 12 can also be set differently. Specifically, it is set that the position of the water inlet 22 of the second valve 20b in the height direction of the main body 10 is lower than the position of the liquid outlet 21 in the height direction of the main body 10. Refer to Figure 3 the height difference A, and the specific value can be set according to requirements.

[0053] When the first abutting member 40a and the second abutting member 40b move upward along the height direction of the main body 10, the convex portion 43 of the second abutting member 40b first pushes the push rod 23 of the second valve 20b, and the convex portion 43 of the first abutting member 40a then pushes the push rod 23 of the first valve 20a. At this time, the distance that the push rod 23 of the second valve 20b is pushed is greater than the distance that the push rod 23 of the first valve 20a is pushed. That is, the timing for the first abutting member 40a to drive the first valve 20a to open the liquid outlet 21 is later than the timing for the second abutting member 40b to drive the second valve 20b to open the water inlet 22. When the first abutting member 40a and the second abutting member 40b move downward along the height direction of the main body 10, the convex portion 43 of the first abutting member 40a first releases the push rod 23 of the first valve 20a, and the convex portion 43 of the second abutting member 40b then releases the push rod 23 of the second valve 20b. That is, the timing for the first abutting member 40a to drive the first valve 20a to close the liquid outlet 21 is earlier than the timing for the second abutting member 40b to drive the second valve 20b to close the water inlet 22.

[0054] In practical applications, it can also be set that the position of the water inlet 22 of the second valve 20b in the height direction of the main body 10 is the same as the position of the liquid outlet 21 in the height direction of the main body 10, and the dimensions of the first abutting member 40a and the second abutting member 40b in the height direction are set differently. For example, the length of the second abutting member 40b is greater than the length of the first abutting member 40a, and it can also achieve different opening or closing times for driving the first valve 20a and the second valve 20b.

[0055] When the present invention is mixing, the second valve 20b is first opened, and the clear water is preferentially injected into the mixing chamber 12. Subsequently, the first valve 20a is opened to discharge the foaming liquid, so that the clear water enters the mixing chamber 12 before the foaming liquid, and the end of the liquid discharge channel 14 is closed before the first valve 20a is opened, avoiding the direct inflow of the foaming liquid into the mixing liquid chamber 12.

[0056] For the mechanical mixing device of the present invention, its working principle is as follows:

[0057] See Figure 2 , during the process when the float 31 descends until it is at the low water level, the first abutting member 40a and the second abutting member 40b rise synchronously. The second abutting member 40b pushes the second valve 20b to open, then the clear water enters the mixing chamber 12 through the water inlet channel 13. Then, the first abutting member 40a and the second abutting member 40b continue to rise. The elastic sleeve 54 abuts against the end of the liquid discharge channel 14 and is compressed until the first abutting member 40a pushes the second valve 20b to open. When the float 31 descends to the low water level, it stops. The foaming liquid in the liquid storage chamber 11 enters the liquid discharge channel 14 and is located in the liquid discharge channel 14.

[0058] As the water level in the mixing chamber 12 rises, the buoy 31 starts to rise, and then the first abutting member 40a and the second abutting member 40b start to descend. When the elastic sleeve 54 disengages from the liquid outlet channel 14, the quantitative foaming liquid in the liquid outlet channel 14 enters the mixing chamber 12 and is mixed with the clear water in the mixing chamber 12 until the first valve 20a closes. The clear water in the water inlet channel 13 continues to flow in until the water level in the mixing chamber 12 rises to the point where the second abutting member 40b descends to close the second valve 20b, and the foaming liquid and the clear water in the mixing chamber 12 are mixed to form a mixed liquid. See Figure 3 . When the mixed liquid in the mixing chamber 12 is sucked away, the buoy 31 starts to descend, and this process repeats.

[0059] Based on this, the present invention further provides a foaming device. See Figures 4 to 6 , which includes a liquid suction assembly 50 and the above-mentioned mechanical liquid mixing device. The liquid suction assembly 50 is provided with a liquid suction pipe 51, and one end of the liquid suction pipe 51 extends into the mixing chamber 12 from the top in the height direction of the mixing chamber 12 to suck the mixed liquid. The length of the part of the liquid suction pipe 51 extending into the mixing chamber 12 is set to ensure that the mixed liquid can be fully sucked, so that the buoy 31 can descend to a low water level.

[0060] Among them, the liquid suction assembly 50 can generate a negative pressure in the liquid suction pipe 51 to suck the mixed liquid from the mixing chamber 12 and mix it with water again for foaming. Specifically, the liquid suction assembly 50 includes a control valve 53 and a Venturi unit 52. The Venturi unit 52 is located below the mixing chamber 12 and is provided with an input port 54, a liquid suction port 55, and a foam outlet 56. The input port 54 is connected to the control valve 53, the liquid suction port 55 is connected to the other end of the liquid suction pipe 51, and the foam outlet 56 is used to output foam. The Venturi unit 52 is a structure designed based on the Venturi principle. The control valve 53 can be a pulse solenoid valve, etc. When the control valve 53 opens to let water flow out, the water flows into the Venturi unit 52 and then accelerates through the liquid suction port 55. A negative pressure is generated around the liquid suction port 55 to suck the mixed liquid from the liquid storage chamber 11 through the liquid suction pipe 51 and mix it with the water flow to generate a large number of bubbles, which are discharged from the foam outlet 56. To achieve a better foaming effect, an air inlet 57 is further provided between the liquid suction port 55 and the foam outlet 56 for sucking air under the action of negative pressure. The inhaled gas is fully mixed with the mixed liquid and water to generate a large number of foams. The structure of the liquid suction assembly 50 is not limited to this, and other liquid suction structures can also be used to achieve the same purpose.

[0061] Based on this, the present invention further provides a foaming toilet, which includes a toilet body. The toilet body 60 is provided with a ceramic body 61, a water tank 62, a water inlet valve 63, a drain valve 64, and the above-mentioned foaming device. The foaming device is installed at a suitable position inside the water tank 62. The foam outlet 56 of the foaming device is connected to a foam outlet pipe 67, and the foam outlet end of the foam outlet pipe 67 communicates with the toilet bowl of the toilet body 60. One of the water outlets 65 of the water inlet valve 63 is connected to the control valve 53 for providing clear water to the foaming device. The water replenishing port 66 of the water inlet valve 63 is connected to the water inlet passage 13 for providing clear water to the water inlet passage 13 of the liquid mixing device.

[0062] In the foaming toilet of the present invention, the foaming function of the foaming device can be started as needed, for example, when the drain valve 64 drains water, when sitting down, or when the user actively starts it. Taking the case when the drain valve 64 drains water as an example: when the drain valve 64 drains water, as the water level in the water tank 62 drops, the water inlet valve 63 starts to intake water. The water replenishing port 66 of the water inlet valve 63 outputs clear water to the mixing device to be mixed with the foaming liquid to generate a mixed liquid; control the foaming device to start foaming, then the clear water from the water inlet valve 63 enters the foaming device, and cooperates with the liquid suction pipe 51 to suck the mixed liquid from the mixing chamber 12 for foaming and then send it to the toilet bowl to form a foam shield, completing one cycle.

[0063] In the present invention, for terms such as "first", "second", "third", etc., they are only used to distinguish similar objects, and do not have to be used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. In the description, the orientation or positional relationship indicated by "up", "down", "left", "right", "front", and "back" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the protection scope of the present invention. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0064] In addition, in the description of the present application, unless otherwise specified, "a plurality of" means two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0065] The above is only the specific implementation manner of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantive modification made to the present invention using this concept shall fall within the scope of infringement of the protection scope of the present invention.

Claims

1. A mechanical liquid mixing device, comprising a body, wherein the body is provided with a liquid storage chamber and a mixing chamber; the liquid storage chamber is provided with a liquid outlet channel connected to the mixing chamber; the mixing chamber is provided with a water inlet channel; characterized in that: It also includes a first valve, a second valve, a float assembly, a first push-up member and a second push-up member; the first valve is arranged in the liquid outlet channel to open or close the liquid outlet channel; the second valve is arranged in the water inlet channel to open or close the water inlet channel; the float assembly is arranged in the mixing chamber and can rise or fall under the action of buoyancy and gravity; the first push-up member and the second push-up member can be inserted into the liquid outlet channel and the water inlet channel respectively, and the first push-up member and the second push-up member are respectively connected to the float assembly in a transmission manner to drive the first valve and the second valve to add foaming liquid and clean water into the mixing chamber to form a mixed liquid.

2. A mechanical liquid mixing device as claimed in claim 1, characterized in that: When the float assembly is located at a low water level in the mixing chamber, the first push member drives the first valve to open the connection between the liquid outlet channel and the liquid storage chamber, and the second push member drives the second valve to open the water inlet channel; when the float assembly is located at a high water level, the first push member drives the first valve to close the connection between the liquid outlet channel and the liquid storage chamber, and the second push member drives the second valve to close the water inlet channel.

3. A mechanical liquid mixing device as claimed in claim 1, characterized in that: The first valve and the second valve are respectively provided with a liquid outlet and a water inlet, and the water inlet is located lower than the liquid outlet in the height direction of the main body; then, the timing when the first push member drives the first valve to open the liquid outlet is later than the timing when the second push member drives the second valve to open the water inlet, and the timing when the first push member drives the first valve to close the liquid outlet is earlier than the timing when the second push member drives the second valve to close the water inlet.

4. A mechanical liquid mixing device as claimed in claim 1, characterized in that: The float assembly includes a float and two transmission gears; the float is configured to be movable along the height direction of the main body under the action of buoyancy and gravity, and the float is respectively provided with first racks extending along the height direction of the main body on the sides relative to the first abutment and the second abutment; the first abutment top and the second abutment top are respectively provided with second racks; the two transmission gears are rotatably connected to the inner wall of the mixing chamber, one transmission gear is respectively meshed with the first rack and the second rack of the first abutment, and the other transmission gear is respectively meshed with the first rack and the second rack of the second abutment.

5. A mechanical liquid mixing device as claimed in claim 1, characterized in that: The first abutting member includes abutting top and a transmission rod; one end of the abutting top relative to the first valve is partially inserted into the liquid outlet channel and is provided with a convex portion to abut the first valve to open the liquid outlet channel, or to release the first valve to close the liquid outlet channel; the transmission rod is connected to the abutting top and is transmission-connected to the float assembly.

6. A mechanical liquid mixing device as claimed in claim 5, characterized in that: The first push member also includes an elastic sleeve, which is fixedly mounted on the outer periphery of the push top portion; when the first push member drives the first valve to open the liquid outlet channel, the elastic sleeve abuts against the outer periphery of the port of the liquid outlet channel to close the end of the liquid outlet channel, so that the quantitative foaming liquid from the liquid storage chamber is located in the liquid outlet channel, and when the first push member moves to the port where the elastic sleeve is separated from the liquid outlet channel, the quantitative foaming liquid in the liquid outlet channel enters the mixing chamber.

7. A mechanical liquid mixing device as claimed in claim 1, characterized in that: The second abutting member includes a butt-jointing portion and a transmission rod; one end of the butt-jointing portion relative to the second valve is partially inserted into the water inlet channel and is provided with a convex portion to abut the second valve to open the water inlet channel, or to loosen the second valve to close the water inlet channel; the transmission rod is connected to the butt-jointing portion and is transmission-connected to the buoy assembly.

8. A mechanical liquid mixing device as claimed in claim 1, characterized in that: In the height direction of the main body, the liquid storage cavity is located above the mixing cavity and an opening is arranged on the top thereof; a cover plate is also included, and the cover plate cover is arranged at the open end of the liquid storage cavity and is provided with a liquid injection port.

9. A foaming device, comprising a liquid suction component, wherein the liquid suction component is provided with a liquid suction tube, characterized in that: It also includes a mechanical liquid mixing device according to any one of claims 1 to 8, wherein one end of the liquid pipette extends from the top of the mixing chamber in the height direction into the mixing chamber to absorb the mixed liquid.

10. A foaming device according to claim 9, characterized in that: The liquid suction component includes a control valve and a Venturi unit; the Venturi unit is located below the mixing chamber and is provided with an input port, a liquid suction port and a bubble outlet; the input port is connected to the control valve, the liquid suction port is connected to the other end of the liquid suction tube, and the bubble outlet is used to output foam; when the control valve is opened to discharge water, the water flow enters the Venturi unit and accelerates to flow through the liquid suction port, and negative pressure is generated around the liquid suction port to absorb the mixed liquid from the liquid storage chamber through the liquid suction tube and mix it with the water flow to generate a large number of bubbles, which are discharged from the bubble outlet.

11. A foaming toilet, comprising a toilet body, wherein the toilet body is provided with a water tank, a water inlet valve and a drain valve; characterized in that: It also includes a foaming device according to claim 10, wherein the foaming device is installed in the water tank, the bubble outlet is connected to a bubble tube, the bubble outlet end of the bubble tube is connected to the toilet bowl of the toilet body, the water replenishing port of the water inlet valve is connected to the water inlet channel to provide the clean water to the water inlet channel; one of the water outlets of the water inlet valve is connected to the control valve.

12. A foaming toilet as claimed in claim 11, characterized in that: When the drain valve drains water, and as the water level in the water tank drops, the water inlet valve starts to take in water, and the water replenishment port of the water inlet valve outputs clean water to the mixing device for mixing to produce a mixed liquid; then the foaming device is controlled to start foaming, and the clean water from the water inlet valve enters the foaming device, cooperates with the suction tube to absorb the mixed liquid from the mixing chamber for foaming and then sends it to the toilet bowl of the toilet body.

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