A foam generating device and a water tank

Abstract

A foam generating device and a water tank, comprising a main body and a foaming module, characterized in that: the main body is provided with a cavity and a water inlet channel, and the water inlet channel is communicated with the cavity; further comprising a control rod and a first elastic member, one end of the control rod is disposed through the water inlet channel, and the first elastic member is disposed between the control rod and the main body to drive one end of the control rod to close the water inlet channel; the input end of the foaming module is connected to the cavity to input foaming liquid, and the output end is provided with a foam pipe to output foam. The overall structure of the present invention is compact, water and medicine can be added to the cavity, it is convenient to use and easy to maintain.

Description

Technical Field

[0001] The present invention relates to the field of sanitary ware, and particularly to a foam generating device and a water tank. Background Art

[0002] At present, during the process of defecation, there is occasionally a phenomenon of water splashing when the feces fall into the toilet, and there is a problem of urine splashing when men stand and urinate. The above problems greatly affect the user experience and health and hygiene. It is found through investigation that some users will put paper on the water seal cover in advance to prevent water and urine splashing. Manufacturers have also carried out some R & D optimizations on these problems. For example, some parameters of the toilet water seal cover have been optimized to reduce the occurrence of water splashing, but the problem still cannot be well solved. There are also some manufacturers that produce toilets with foam generating devices, which release foam onto the water seal cover before the user uses it to prevent water splashing. The foam can quickly wrap the dirt, firmly lock the odor, and block the odor from spreading; in addition, the foam itself is also a cleaning agent, which can dissolve various types of dirt in the toilet, making the flushing cleaner.

[0003] Most of the foaming toilets on the market use a foaming box with a built-in foam generating device to achieve foaming, or use an external foaming box to achieve foaming. For example, the existing toilets with foam generating devices mainly consist of a liquid pump, a gas pump, an electronic control board, a power adapter, a foaming liquid container, foaming liquid and operation buttons. After pressing the button to start the foaming instruction, the electronic control board controls the liquid pump and the gas pump to work, extracting the foaming liquid and gas into the foaming chamber to mix and generate foam. Among them, the control module, the foaming chamber, and the foaming liquid container are installed in the toilet water tank, and the gas pump and the power adapter are installed outside the rear of the toilet.

[0004] This solution has defects: 1) The structure is complex and the size is large, which affects the water storage capacity of the water tank when installed in the water tank; 2) It is necessary to regularly open the cover to add foaming liquid consumables, and the operation is troublesome; 3) It is necessary to externally connect a power adapter; 4) It is inconvenient to install and maintain at the rear of the toilet. Summary of the Invention

[0005] The main purpose of the present invention is to overcome the defects of the existing foam generating device, such as large size, troublesome replacement of consumables, and inconvenient maintenance, and to propose a foam generating device and a water tank with a compact overall structure, small volume, and convenient maintenance.

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

[0007] A foam generating device includes a main body and a foaming module, and is characterized in that: the main body is provided with a cavity and a water inlet channel, and the water inlet channel is communicated with the cavity; it also includes a control rod and a first elastic member, one end of the control rod penetrates through the water inlet channel, and the first elastic member is arranged between the control rod and the main body to drive one end of the control rod to close the water inlet channel; the input end of the foaming module is connected to the cavity to input foaming liquid, and the output end is provided with a foam tube to output foam.

[0008] The main body is also provided with a guiding hole and a limiting groove, and the guiding hole communicates with the limiting groove; the control rod passes through the guiding hole and the other end thereof is located in the limiting groove.

[0009] A foam generating device includes a main body and a foaming module, and is characterized in that: the main body is provided with a cavity, a buoyancy chamber and a water inlet passage, the water inlet passage communicates with the cavity, the buoyancy chamber communicates with the cavity and is provided with a water discharge port; it further includes a floating cylinder, a control rod, a transmission member and a first elastic member, the floating cylinder is movably arranged in the buoyancy chamber, the transmission member is connected to the floating cylinder to close the water inlet passage when the floating cylinder floats upward; one end of the control rod passes through the water discharge port and can be manipulated to open the water discharge port so that the floating cylinder returns to its original position and the transmission member opens the water inlet passage; the first elastic member is arranged between the control rod and the main body to drive the control rod to close the water discharge port; the input end of the foaming module is connected to the cavity to input foaming liquid, and the output end is provided with a foam pipe to output foam.

[0010] The buoyancy chamber is close to the top of the cavity and is provided with a guiding hole, and the top of the buoyancy chamber communicates with the cavity; the control rod passes through the guiding hole.

[0011] The transmission member is provided with a connecting portion and a sealing portion, the connecting portion is fixedly connected to the floating cylinder, and the sealing portion is located at the water inlet passage and is rotatably connected to the main body.

[0012] It further includes a base, the base is provided with a medicine feeding port and a flip cover, the medicine feeding port communicates with the cavity, and the flip cover is rotatably connected to the medicine feeding port.

[0013] The base is further provided with a mounting groove, and further includes a key assembly, the key assembly is arranged on the mounting groove and abuts against the other end of the control rod.

[0014] The key assembly includes a key and a second elastic member, one end of the key is located in the mounting groove, the other end passes through the mounting groove and abuts against the other end of the control rod, and the second elastic member is arranged between the mounting groove and the corresponding end of the key.

[0015] One end of the control rod is provided with a sealing member, the other end is provided with a gland, the key assembly abuts against the gland, and the first elastic member is arranged between the gland and the main body.

[0016] It further includes a foaming switch, a control board and a battery module, the control board is installed in the base or the main body and is provided with a charging port, the battery module is installed on the base or the main body, and the foaming switch is arranged on the key assembly or the base; the control board is connected to the foaming switch and the foaming module to control the output of foam.

[0017] The foaming module further includes a water inlet pipe, a liquid inlet pipe and a pump body; the liquid inlet pipe is communicated with the cavity; the input end of the pump body is connected to the water inlet pipe and the liquid inlet pipe, and the output end is connected to the foam pipe; a foaming mixer is provided near one end of the foam pipe, and a nozzle is provided at the other end.

[0018] The foaming mixer includes a housing and at least one mesh sheet. The housing is provided with a liquid inlet and a foam outlet, and the at least one mesh sheet is fixed in the housing and located between the liquid inlet and the foam outlet.

[0019] The foaming mixer further includes a bubble stone, which is located between the mesh sheet and the liquid inlet.

[0020] A water tank with a foam generating device includes a water tank body, and is characterized in that: it further includes the above-mentioned foam generating device, the main body is fixed in the water tank, the water inlet channel is communicated with the water tank body, and the output end of the foam pipe is located outside the water tank body.

[0021] 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:

[0022] 1. In the device of the present invention, a cavity, a water inlet channel, a control rod, etc. are provided on the main body. One end of the control rod is driven by a first elastic member to close the water inlet channel, and by manipulating the control rod, the water inlet channel can be opened to mix the foaming liquid in the cavity; the foaming module is connected to the cavity to be manipulated to output foam. The overall structure is compact, water can be supplied to the cavity, it is convenient to use and easy to maintain.

[0023] 2. In the device of the present invention, a cavity, a buoyancy chamber, a water inlet channel, a floating cylinder, a control rod, a transmission member and a first elastic member, etc. are provided on the main body. The floating cylinder is located in the buoyancy chamber, and the transmission member is connected to the floating cylinder to close the water inlet channel when the floating cylinder floats; one end of the control rod passes through the water discharge port and can be manipulated to open the water discharge port so that the floating cylinder returns to its position, and the transmission member opens the water inlet channel; the first elastic member is arranged between the control rod and the main body to drive the control rod to close the water discharge port; the input end of the foaming module is connected to the cavity to be manipulated to output foam. The overall structure is compact, water can be supplied to the cavity, it is convenient to use and easy to maintain; in addition, by providing a buoyancy chamber and a floating cylinder, after the cavity is filled with water, the water inlet channel is automatically closed.

[0024] 3. The device of the present invention is provided with a base, on which there is a medicine feeding port and a flip cover. By opening the flip cover, the foaming medicine block can be put into the medicine feeding port and dropped into the cavity, and it is very convenient to add medicine; in addition, a button assembly can also be provided on the base, and by pressing the button, the control rod can be actuated to open the water inlet channel or the water discharge port, and the operation is very convenient.

[0025] 4. The device of the present invention is also provided with a foaming switch, a control board, a battery module, etc. The control board is installed in the base or the main body and is provided with a charging port. The battery module is installed on the base or the main body. The foaming switch is set on the button assembly or the base. The control board controls the operation of the foaming module according to the state of the foaming switch. The combination of the foaming switch and the button is convenient for installation, simple in control method, does not require an external power supply, and can be charged, which is very convenient.

[0026] 5. In the device of the present invention, the foaming module is installed in the main body and includes a water inlet pipe, a liquid inlet pipe, a pump body and a foam pipe. After the pump body extracts the foaming liquid from the cavity and mixes it with the water in the water inlet pipe, it enters the foaming mixer in the foam pipe to form foam. The structure is compact and the volume is small. The foaming mixer can be selected according to needs to meet different requirements of users.

[0027] 6. For the water tank of the present invention, the base can be installed on the top of the water tank body, which is convenient to operate the buttons to control the water supply or foaming. The main body is fixed in the water tank body, that is, the water in the water tank body can enter the cavity through the water inlet channel to be mixed into the foaming liquid, without the need for an additional container to add water, and the components can be maintained by opening the top of the water tank body, which is very convenient. Description of the Drawings

[0028] Figure 1 is the structure diagram of the foam generating device of the present invention (Embodiment 1);

[0029] Figure 2 is Figure 1 the explosion diagram of;

[0030] Figure 3 is the structure diagram of the flip cover;

[0031] Figure 4 is the assembly schematic diagram of the button assembly and the control rod;

[0032] Figure 5 is the cross-sectional view of one of the mixers;

[0033] Figure 6 is the cross-sectional view of another mixer;

[0034] Figure 7 is Figure 1 the partial cross-sectional view of (the water inlet channel is opened);

[0035] Figure 8 is the longitudinal section of Embodiment 1 Figure 1 ;

[0036] Figure 9 is the longitudinal section of Embodiment 1 Figure 2 ;

[0037] Figure 10 is the structure diagram of the water tank of Embodiment 1;

[0038] Figure 11 Cross-sectional view of the water tank in the first embodiment (inlet channel open);

[0039] Figure 12 Partial cross-sectional view of a part of the structure in the second embodiment of the present invention (inlet channel open);

[0040] Figure 13 Assembly drawing of the transmission parts;

[0041] Figure 14 Partial enlarged view of the second embodiment (inlet channel open, drain opening closed);

[0042] Figure 15 Partial enlarged view of the second embodiment (float rising, inlet channel closed);

[0043] Figure 16 Partial enlarged view of the second embodiment (float returning, drain opening open);

[0044] Wherein:

[0045] 10. Main body, 11. Cavity, 12. Inlet channel, 13. Installation cavity, 14. Cover body, 14a. Guide hole, 14b. Limiting groove, 15. Buoyancy cavity, 16. Drain opening, 17. Groove, 18. Connecting piece, 19. Installation part, 19a. Sealing gasket, 19b. Installation nut, 20. Control rod, 21. Sealing member, 22. Pressing cover, 30. First elastic member, 40. Foaming module, 41. Water inlet pipe, 42. Liquid inlet pipe, 43. Pump body, 44. Foam pipe, 45. Foaming mixer, 46. Shell, 46a. Liquid inlet, 46b. Foam outlet, 47. Mesh piece, 48. Bubble stone, 49. Nozzle, 50. Base, 51. Medicine feeding port, 52. Flap, 53. Torsion spring, 54. Rotating shaft, 55. Installation groove, 56. Foaming switch, 57. Decorative cover, 58. Locking block, 60. Button assembly, 61. Button, 62. Second elastic member, 70. Control board, 71. Battery module, 72. Charging port, 74. Battery cover, 80. Float, 81. Transmission part, 82. Connecting part, 83. Sealing part, 90. Water tank body, 91. Foaming medicine block.

[0046] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Specific embodiments

[0047] The present invention will be further described below through specific embodiments.

[0048] In the present invention, for terms such as "first", "second", "third", etc., they are only used to distinguish similar objects, and do not necessarily need 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. This 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. Therefore, 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.

[0049] In addition, in the description of this 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.

[0050] Embodiment 1

[0051] See Figures 1 to 11 , a foam generating device, including a main body 10, a foaming module 40, a control rod 20, a first elastic member 30, etc. The main body 10 is provided with a cavity 11 and a water inlet channel 12. The water inlet channel 12 is communicated with the cavity 11. The water inlet channel 12 can be arranged on one side of the cavity 11 for introducing water into the cavity 11. The cavity 11 can also be provided with an opening for putting in a foaming medicine block 91. The foaming medicine block 91 can be mixed with the water in the cavity 11 to form a foaming liquid. The opening can be located at a suitable position such as the top or side of the cavity 11.

[0052] The control rod 20 is used to open or close the water inlet channel 12, thereby controlling the opening or closing of the water inlet into the cavity 11. The control rod 20 is movably arranged on the main body 10, and one end of it penetrates through the water inlet channel 12. The first elastic member 30 is arranged between the control rod 20 and the main body 10 for driving one end of the control rod 20 to close the water inlet channel 12.

[0053] Among them, on one side of the cavity 11 of the main body 10, there may be provided an installation cavity 13 and a cover 14. The cover 14 closes the installation cavity 13 and is provided with a guide hole 14a and a limit groove 14b. The guide hole 14a penetrates through the installation cavity 13, and the limit groove 14b communicates with the top end of the guide hole 14a. The water inlet channel 12 can communicate with the bottom end of the guide hole 14a. The control rod 20 is movably inserted through the guide hole 14a, that is, the control rod 20 can rise or fall along the guide hole 14a. One end of the control rod 20 is further provided with a seal 21, and the other end is provided with a gland 22. The gland 22 is located in the limit groove 14b to prevent the control rod 20 from detaching from the guide hole 14a. The seal 21 can be used to block the water inlet end of the water inlet channel 12. The first elastic member 30 can be arranged between the bottom surface of the gland 22 and the inner wall of the guide hole 14a.

[0054] The present invention further includes a base 50, which can be fixed relative to the main body 10 and can be fixed on or outside the main body 10. The base 50 is provided with a medicine feeding port 51 and a flip cover 52. The medicine feeding port 51 communicates with the cavity 11, that is, the medicine feeding port 51 communicates with the opening of the cavity 11. The flip cover 52 is rotatably connected to the medicine feeding port 51, that is, the flip cover 52 can be switched between opening and closing the medicine feeding port 51. A torsion spring 53 can also be provided on the rotating shaft 54 of the flip cover 52, so that in the normal state, the flip cover 52 closes the medicine feeding port 51.

[0055] Furthermore, it further includes a button assembly 60 for controlling the control rod 20, and the base 50 is correspondingly provided with an installation groove 55. The button assembly 60 is arranged on the installation groove 55 and abuts against the gland 22 of the control rod 20. A decorative cover 57 can also be arranged on the surface of the base 50 to be more beautiful.

[0056] Specifically, the button assembly 60 includes a button 61 and a second elastic member 62. One end of the button 61 is located in the installation groove 55, and the other end passes through the installation groove 55 and abuts against the other end of the control rod 20. The second elastic member 62 is arranged between the installation groove 55 and the corresponding end of the button 61. Then, when pressing one end of the button 61, the other end can push the gland 22 to drive the control rod 20 to move downward, thereby opening the water inlet channel 12. When releasing the button 61, under the action of the first elastic member 30 and the second elastic member 62, the control rod 20 returns to its original position, and the button 61 returns to its original position.

[0057] The input end of the foaming module 40 of the present invention is connected to the cavity 11 to input the foaming liquid, and a foam pipe 44 is provided at the output end to output foam. Specifically, the foaming module 40 further includes a water inlet pipe 41, a liquid inlet pipe 42, and a pump body 43. The liquid inlet pipe 42 communicates with the cavity 11, and its end can be close to the bottom of the cavity 11 to access the foaming liquid, and the water inlet pipe 41 is used to access water. The water inlet pipe 41 and the liquid inlet pipe 42 can be connected to the input end of the pump body 43 through a tee. The output end of the pump body 43 is connected to the foam pipe 44. A foaming mixer 45 is provided near one end of the foam pipe 44, and a nozzle 49 is provided at the other end. When the pump body 43 works, the foaming liquid and water can be respectively extracted through the liquid inlet pipe 42 and the water inlet pipe 41 for mixing, enter the foaming mixer 45 and be fully mixed with air for foaming, and the foam is ejected from the nozzle 49.

[0058] Among them, the foaming mixer 45 can adopt a common foaming structure, see Figure 5 , which may include a housing 46 and at least one mesh sheet 47. The housing 46 is provided with a liquid inlet 46a and a foam outlet 46b. The liquid inlet 46a communicates with the output end of the pump body 43, and the foam outlet 46b communicates with the nozzle 49. The at least one mesh sheet 47 is fixed in the housing 46 and is located between the liquid inlet 46a and the foam outlet 46b. The mixed foaming liquid is fully mixed with air through the mesh sheet 47 to form a large amount of foam.

[0059] Furthermore, the structure of the foaming mixer 45 is not limited to this, see Figure 6 , and it may also include a bubble stone 48. The bubble stone 48 is arranged between the mesh sheet 47 and the liquid inlet 46a, so that the foaming liquid and air are mixed more evenly.

[0060] For the convenience of operation, the present invention further includes a foaming switch 56, a control board 70, and a battery module 71. The control board 70 is installed in the base 50 or on the main body 10 and is provided with a charging port 72. The battery module 71 is installed on the base 50 or the main body 10, and it can adopt a rechargeable battery, such as a lithium battery. The foaming switch 56 is arranged on the button assembly 60 or the base 50; the control board 70 is connected to the foaming switch 56 and the foaming module 40 to control the output of foam, that is, the output of foam of the foaming module 40 can be controlled to be turned on or off by operating the switch. The foaming switch 56 can adopt a mechanical switch, a touch switch, or an induction switch, and the number thereof is at least one. The control board can adopt a chip model of PIC16F1503.

[0061] Preferably, the foaming switch 56 is a touch switch and is located on the surface of the button 61. The charging port 72 of the control board 70 is located on the top surface of the base 50. The battery module 71, the pump body 43, and the foaming mixer 45 can be installed in the installation cavity 13 of the main body 10. The installation cavity 13 can be partitioned into different areas for placing the battery module 71, the pump body 43, and the foaming mixer 45 respectively. The area where the battery module 71 is located can be sealed by a battery cover 74. The foam tube 44 can be passed through the inside or outside of the main body 10, and its nozzle 49 is located outside the main body 10. The length of the foam tube 44 can be set as required.

[0062] The present invention also provides a water tank with a foam generating device, which includes a water tank body 90 and the above-mentioned foam generating device. Among them, the main body 10 is fixed in the water tank body 90, and the water inlet channel 12 and the water inlet pipe 41 are communicated with the water tank body 90. The water inlet channel 12 can be located below the working water level of the water tank body 90. The base 50 can be fixed to the top of the water tank body 90 through a locking block 58. The nozzle 49 of the foam tube 44 is located outside the water tank body 90. The water tank body 90 can be used as a water tank of a toilet, and components such as a water inlet valve and a drain valve can also be arranged therein.

[0063] The main body 10 can also be provided with an installation part 19, and is detachably and fixedly connected to the water tank body 90 through the installation part 19. A threaded connection can be adopted between the installation part 19 and the water tank body 90, and a sealing gasket 19a and an installation nut 19b are also provided at the connection.

[0064] The working principle of the water tank of the present invention is as follows:

[0065] In the initial state, the water tank body 90 is filled with water, and the water level is higher than the water inlet channel 12. Under the action of the first elastic member 30, the seal 21 of the control rod 20 closes the water inlet channel 12. The button 61 returns to its original position under the action of the second elastic member 62, and the flip cover 52 closes the medicine feeding port 51.

[0066] See Figure 11 , press the button 61, push the control rod 20 downward, the water inlet channel 12 is opened, and the water in the water tank body 90 enters the cavity 11 through the water inlet channel 12. After a period of time, release the button 61, the water inlet channel 12 is closed, open the flip cover 52, put the foaming medicine block 91 into the medicine feeding port 51, and the foaming medicine block 91 falls into the cavity 11 and mixes with water to form a foaming liquid.

[0067] See Figure 8 、 Figure 9 , when touching the foaming switch 56, the control board 70 controls the pump body 43 to work according to the foaming command, extracts the foaming liquid from the cavity 11 through the liquid inlet pipe 42, extracts water from the water tank body 90 through the water inlet pipe 41, mixes the two, outputs to the foam tube 44, enters the foaming mixer 45 and is fully mixed with air to generate a large amount of foam, and the foam sprays out from the nozzle 49.

[0068] Example 2

[0069] See Figure 12 , a foam generating device and a water tank, the main structures of which are the same as those in Example 1, the difference is that: a buoyancy chamber 15 is added to the main body 10, the buoyancy chamber 15 communicates with the cavity 11 and is provided with a water discharge port 16, and the water discharge port 16 can communicate with the water tank body 90. The buoyancy chamber 15 can be located at the installation cavity 13 of the main body 10, and an opening can be provided at the top of the buoyancy chamber 15 to communicate with the cavity 11. The water inlet channel 12 can be located on the other side of the cavity 11.

[0070] This embodiment also adds a floating cylinder 80 and a transmission member 81. The floating cylinder 80 is movably arranged in the buoyancy chamber 15. After the buoyancy chamber 15 is filled with water to a certain height, under the action of buoyancy, the floating cylinder 80 can float upward. After the water in the buoyancy chamber 15 is discharged through the water discharge port 16, the floating cylinder 80 can fall under the action of gravity.

[0071] See Figure 13 , the transmission member 81 is connected to the floating cylinder 80, that is, it is linked with the floating cylinder 80. It is provided with a connecting portion 82 and a sealing portion 83. The connecting portion 82 is fixedly connected to the floating cylinder 80, and the sealing portion 83 is located at the water inlet channel 12 and is rotatably connected to the main body 10. Among them, the main body 10 can be provided with a groove 17 on the other side of the cavity 11. The water inlet channel 12 is located at the bottom of the groove 17, and a connecting member 18 is also provided in the groove 17. The rotating shaft of the sealing portion 83 is rotatably connected to the connecting member 18. Then when the floating cylinder 80 floats upward, it drives the connecting portion 82 to move upward, so that the sealing portion 83 rotates downward to close the water inlet channel 12. When the floating cylinder 80 falls, it drives the connecting portion 82 to move downward, so that the sealing portion 83 rotates upward to open the water inlet channel 12.

[0072] Furthermore, the buoyancy chamber 15 is also provided with a guiding hole 14a. The control rod 20 passes through the guiding hole 14a. One end of the control rod 20 passes through the water discharge port 16 and can be manipulated to open the water discharge port 16 so that the floating cylinder 80 falls back to its original position, thereby opening the water inlet channel 12. The first elastic member 30 is arranged between the control rod 20 and the main body 10 to drive the control rod 20 to close the water discharge port 16.

[0073] In this embodiment, the foaming module 40, the base 50, the button assembly 60, etc. can be the same as those in Example 1.

[0074] The working principle of the foam generating device and the water tank in this embodiment is as follows:

[0075] See Figure 12 and Figure 14, in the initial state, under the action of the first elastic member 30, the seal 21 of the control rod 20 closes the water drain port 16, the button 61 returns under the action of the second elastic member 62, and the flip cover 52 closes the medicine feeding port 51; there is no water in the buoyancy chamber 15. At this time, the buoy 80 falls under the action of gravity, and the sealing portion 83 of the transmission member 81 opens the water inlet passage 12. The water in the water tank body 90 enters the cavity 11 through the water inlet passage 12. After the water level in the cavity 11 reaches a certain height, part of the water enters the buoyancy chamber 15. When the buoyancy of the buoyancy chamber 15 is greater than the gravity of the buoy 80, the buoy 80 floats up and the water inlet passage 12 is closed. Then, the flip cover 52 can be opened, and the foaming medicine block 91 is placed into the medicine feeding port 51. The foaming medicine block 91 falls into the cavity 11 and mixes with water to form a foaming liquid. See Figure 15 .

[0076] When the foaming switch 56 is touched, the control board 70 controls the pump body 43 to work according to the foaming command. The foaming liquid is extracted from the cavity 11 through the liquid inlet pipe 42, and water is extracted from the water tank body 90 through the water inlet pipe 41. After the two are mixed, they are output to the foam pipe 44 and enter the foaming mixer 45 to be fully mixed with air to generate a large amount of foam, and the foam is ejected from the nozzle 49.

[0077] See Figure 16 , when the foaming liquid in the cavity 11 is used up, press the button 61 once to release it. During the pressing process, the control rod 20 is pushed downward, the water drain port 16 is opened, the buoyancy chamber 15 drains water, and the buoy 80 can fall. Then, the sealing portion 83 opens the water inlet passage 12, and the water in the water tank body 90 enters the cavity 11 through the water inlet passage 12 until the buoyancy chamber 15 fills with water and the buoy 80 floats up, and the sealing portion 83 closes the water inlet passage 12. Then, open the flip cover 52, place the foaming medicine block 91 into the medicine feeding port 51, and the foaming medicine block 91 falls into the cavity 11 and mixes with water to form a foaming liquid for the next use.

[0078] 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 foam generating device, comprising a main body and a foaming module, characterized in that: The main body is provided with a cavity, a buoyancy chamber and a water inlet channel. The water inlet channel is communicated with the cavity, and the buoyancy chamber is communicated with the cavity and is provided with a drain port. It further includes a floating cylinder, a control rod, a transmission member and a first elastic member. The floating cylinder is movably arranged in the buoyancy chamber, and the transmission member is connected to the floating cylinder to close the water inlet channel when the floating cylinder floats upward. One end of the control rod passes through the drain port and can be manipulated to open the drain port so that the floating cylinder returns to its original position and the transmission member opens the water inlet channel. The first elastic member is arranged between the control rod and the main body to drive the control rod to close the drain port. The input end of the foaming module is connected to the cavity to input foaming liquid, and the output end is provided with a foam pipe to output foam.

2. The foam generating device according to claim 1, wherein: The main body is further provided with a guiding hole and a limiting groove, and the guiding hole is communicated with the limiting groove. The control rod passes through the guiding hole and the other end thereof is located in the limiting groove.

3. A foam generating device according to claim 1, characterized in that: The buoyancy chamber is close to the top of the cavity and is provided with a guiding hole. The top of the buoyancy chamber is communicated with the cavity. The control rod passes through the guiding hole.

4. A foam generating device according to claim 1, characterized in that: The transmission member is provided with a connecting portion and a sealing portion. The connecting portion is fixedly connected to the floating cylinder, and the sealing portion is located at the water inlet channel and is rotatably connected to the main body.

5. A foam generating device according to claim 1, wherein: It further includes a base, which is provided with a medicine feeding port and a flip cover. The medicine feeding port is communicated with the cavity, and the flip cover is rotatably connected to the medicine feeding port.

6. The foam generating device according to claim 5, wherein: The base is further provided with a mounting groove, and it further includes a key assembly. The key assembly is arranged on the mounting groove and abuts against the other end of the control rod.

7. The foam generating device according to claim 6, characterized in that: The key assembly includes a key and a second elastic member. One end of the key is located in the mounting groove, and the other end passes through the mounting groove and abuts against the other end of the control rod. The second elastic member is arranged between the mounting groove and the corresponding end of the key.

8. The foam generating device according to claim 6, characterized in that: One end of the control rod is provided with a sealing member, and the other end is provided with a gland. The key assembly abuts against the gland, and the first elastic member is arranged between the gland and the main body.

9. The foam generating device according to claim 6, characterized in that: It further includes a foaming switch, a control board and a battery module. The control board is installed in the base or the main body and is provided with a charging port. The battery module is installed on the base or the main body. The foaming switch is arranged on the key assembly or the base. The control board is connected to the foaming switch and the foaming module to control the output of foam.

10. A foam generating device according to claim 1, characterized in that: The foaming module further includes a water inlet pipe, a liquid inlet pipe and a pump body. The liquid inlet pipe is communicated with the cavity. The input end of the pump body is connected to the water inlet pipe and the liquid inlet pipe, and the output end is connected to the foam pipe. A foaming mixer is arranged near one end of the foam pipe, and a nozzle is arranged at the other end.

11. A foam generating device according to claim 10, characterized in that: The foaming mixer includes a housing and at least one mesh sheet. The housing is provided with a liquid inlet and a foam outlet, and the at least one mesh sheet is fixed in the housing and is located between the liquid inlet and the foam outlet.

12. A foam generating device according to claim 11, characterized in that: The foaming mixer further includes a bubble stone, which is located between the mesh sheet and the liquid inlet.

13. A water tank with a foam generating device, comprising a water tank body, characterized in that: It further includes a foam generating device according to any one of claims 1 to 12. The main body is fixed in a water tank, the water inlet channel is communicated with the water tank body, and the output end of the foam pipe is located outside the water tank body.

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