Overhead liquid replenishing foam generator
Patent Information
- Application Number
- EP2023942750
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-06-27
- Publication Date
- 2025-10-29
Smart Images

Figure CN2023102787_02012025_PF_FP_ABST
Abstract
Description
OVERHEAD LIQUID REPLENISHING FOAM GENERATORTECHNICAL FIELD
[0001] The present application relates to the field of sanitary wares, and particularly to an overhead liquid replenishing foam generator.BACKGROUND
[0002] At present, foam dispensers available from the market are generally used to realize spraying of bath lotion, shampoo or hand sanitizer. However, existing foam dispensers generally realize liquid spraying and foam generation by mechanically pressing a manual foam pump or an electric foam pump. The liquid generally passes through a pump body, which is prone to blockage and corrosion damage by a foamed soap liquid due to a long use time. Moreover, in order to make the pump body quickly pump out the soap liquid in a foam form, a small liquid storage cavity is generally used to store the soap liquid, so that it is necessary to replenish liquid frequently during use. In some cases, the spraying and replenishment of the soap liquid are realized through two pump bodies respectively, but this mode is complicated in structure and high in cost.SUMMARY
[0003] The present application aims to provide an overhead liquid replenishing foam generator to solve one or more technical problems in the prior art, and at least provide a beneficial selection or creation condition.
[0004] A technical solution used to solve the above technical problems is as follows.
[0005] The present application provides an overhead liquid replenishing foam generator, which includes: a liquid storage tank cavity, a liquid replenishing tank cavity, an air mixing tank cavity and an air pressure balancing mechanism. A top portion of the liquid replenishing tank cavity includes an air suction port for vacuumizing the liquid replenishing tank cavity. The liquid replenishing tank cavity is communicated with the liquid storage tank cavity through a liquid replenishing channel. A top portion of the air mixing tank cavity includes a foam generating nozzle and an air supply port for performing air supply and pressurization on the air mixing tank cavity. A bottom portion of the air mixing tank cavity is communicated with the liquid replenishing tank cavity through a one-way liquid replenishing valve. The foam generating nozzle includes a liquid outlet channel extending downwardly to the bottom portion of the air mixing tank cavity, an air outlet channel communicated with an air cavity above a liquid level inside the air mixing tank cavity, and a mixing channel communicated the liquid outlet channel with the air outlet channel. The air pressure balancing mechanism is configured to balance a pressure between the liquid replenishing tank cavity and the air mixing tank cavity.
[0006] The present application has the beneficial effects as follow. When in use, a soap liquid is stored in the liquid storage tank cavity. An interior of the liquid replenishing tank cavity is vacuumized through the air suction port firstly to form a negative pressure inside the liquid replenishing tank cavity. Then, the liquid in the liquid storage tank cavity is sucked into the liquid replenishing tank cavity, and the liquid in the liquid replenishing tank cavity is in turn replenished into the air mixing tank cavity through the one-way liquid replenishing valve. When foam needs to be sprayed out, air is supplied to the air mixing tank cavity through the air supply port for pressurization to form a high pressure inside the air mixing tank cavity, so that the soap liquid in the air mixing tank cavity is forced into the mixing channel from the liquid outlet channel under an action of pressure, while the air in the air mixing tank cavity is also forced into the mixing channel from the air outlet channel under the action of pressure at the same time. The air and the soap liquid are mixed in the mixing channel to form the foam and then sprayed out from the mixing channel together, thereby realizing the spraying of the foam.
[0007] After the soap liquid in the air mixing tank cavity is sprayed out, the soap liquid in the air mixing tank cavity is reduced. After a liquid level of the soap liquid in the air mixing tank cavity is lowered, alternatively, when the liquid replenishing tank cavity is vacuumized to form the negative pressure, the liquid in the liquid storage tank cavity is sucked into the liquid replenishing tank cavity. After the liquid level of the soap liquid in the liquid replenishing tank cavity is raised, a pressure between the air mixing tank cavity and the liquid replenishing tank cavity is balanced through the air pressure balancing mechanism at the moment, and then the liquid in the liquid replenishing tank cavity is supplied to the air mixing tank cavity through the one-way liquid replenishing valve until a liquid level of the air mixing tank cavity is consistent with that of the liquid replenishing tank cavity. The foam generator realizes liquid replenishment, air supply and pressurization by the negative pressure formed by vacuumizing and the air pressure balancing mechanism to form the high pressure for foam generation and spraying, thereby realizing large-capacity use without frequent liquid replenishment.
[0008] As a further improvement of the above technical solution, the overhead liquid replenishing foam generator further includes a pump body module including an air inlet end connected with the air suction port and an air outlet end connected with the air supply port.
[0009] According to the solution, the pump body module is configured to perform vacuumization, air supply and pressurization synchronously. It is well known from working principle analysis of the air pump that, a function of a general pressurizing air pump is to pressurize low-pressure air to form high-pressure air. That is to say, the pump body module may have a low-pressure air inlet mode and a high-pressure air outlet mode. The low-pressure air inlet mode refers to vacuumization, while the high-pressure air outlet mode refers to pressurization and air supply. According to the solution, the air inlet end of the pump body module is connected to the air suction port, while the air outlet end is connected to the air supply port. When the pump body module is operated, the liquid replenishing tank cavity is vacuumized and the air mixing tank cavity is pressurized simultaneously. That is to say, liquid replenishment and foam generation and spraying may be realized simultaneously, thereby saving costs.
[0010] As a further improvement of the above technical solution, the pump body module is an electric air pump.
[0011] In the solution, the pump body module may be the electric air pump for realizing automatic control.
[0012] As a further improvement of the above technical solution, the pump body module is a manual air pump, and an air inlet end and an air outlet end of the manual air pump includes a one-way air valve respectively.
[0013] In the solution, the pump body module is the manual air pump, which generally has a balloon pump structure. Air intake and discharge are controlled through the two one-way air valves, so that the air in the air pump can only be discharged from the air outlet end when the air pump is squeezed; and when the air pump is reset, the air can only enter the air pump from the air inlet end.
[0014] As a further improvement of the above technical solution, the air pressure balancing mechanism includes a first air pressure balancing assembly arranged at the top portion of the liquid replenishing tank cavity, and a second air pressure balancing assembly arranged at the top portion of the air mixing tank cavity. The first air pressure balancing assembly is configured to balance an air pressure between the liquid replenishing tank cavity and the outside environment. The second air pressure balancing assembly is configured to balance an air pressure between the air mixing tank cavity and the outside environment.
[0015] According to the solution, the first air pressure balancing assembly is configured to balance the air pressure between the liquid replenishing tank cavity and the outside environment, and the second air pressure balancing assembly is configured to balance the air pressure between the air mixing tank cavity and the outside environment, thereby realizing air pressure balance between the liquid replenishing tank cavity and the air mixing tank cavity.
[0016] When the internal air pressure is increased suddenly, the air pressure balancing assembly may close a ventilation channel or an air overflow amount may be ignored. When the internal air pressure is not increased any more, the air pressure balance assembly is configured to make the inside communicate with the outside to realize air pressure balance between the inside and the outside.
[0017] The air pressure balancing assembly may be a series of circulation control devices such as a solenoid valve and a microporous membrane, which will not be described in detail in the present application.
[0018] As a further improvement of the above technical solution, the liquid replenishing channel includes a liquid replenishing outlet end arranged in the liquid replenishing tank cavity, and a liquid replenishing inlet end located in the liquid storage tank cavity, so that the one-way liquid replenishing valve is lower than a horizontal height of the liquid replenishing outlet end.
[0019] When there is the negative pressure inside the liquid replenishing tank cavity, the soap liquid in the liquid storage tank cavity is forced into the liquid replenishing channel through the liquid replenishing inlet end, and then it flows into the liquid replenishing tank cavity from the liquid replenishing outlet end. After the air pressures of the liquid replenishing tank cavity and the air mixing tank cavity are balanced with external atmospheric pressure, the liquid level in the liquid replenishing tank cavity is equal to that of the liquid replenishing outlet end, and the air mixing tank cavity is replenished with the soap liquid to be in a state that the liquid level is equal to the liquid level of the liquid replenishing tank cavity. Therefore, liquid replenishment to the air mixing tank cavity through the liquid replenishing tank cavity is realized by the atmospheric pressure.
[0020] As a further improvement of the above technical solution, the foam generating nozzle includes a sleeving groove arranged in the top portion of the air mixing tank cavity, and a hollow sleeving member sleeved in the sleeving groove. The mixing channel is arranged at a top portion of the sleeving groove and communicated with the sleeving groove. The air outlet channel is formed between an outer wall of the sleeving member and an inner wall of the sleeving groove. The sleeving member includes a liquid outlet pipe extending downwardly to the bottom portion of the air mixing tank cavity. The liquid outlet channel is formed in the liquid outlet pipe.
[0021] As a further improvement of the above technical solution, the overhead liquid replenishing foam generator further includes a foam refining unit connected with an outlet of the mixing channel through a pipeline.
[0022] According to the solution, the foam refining unit is also configured to perform foam refining on a mixture of the soap liquid and the air.
[0023] As a further improvement of the above technical solution, the one-way liquid replenishing valve includes an umbrella-shaped valve core, and a liquid replenishing through hole and a guide hole which are arranged at the bottom portion of the air mixing tank cavity. The umbrella-shaped valve core includes a valve cap and a valve rod which is in up-down sliding fit with the guide hole. The liquid replenishing through hole is arranged below the valve cap and communicated with the liquid replenishing tank cavity. There is a plurality of liquid replenishing through holes annularly arranged at intervals around an axis of the valve rod.
[0024] In the solution, the one-way liquid replenishing valve is realized by the structure of the umbrella-shaped valve core. The valve rod is in sliding fit with the guide hole. In a free state, the umbrella-shaped valve core moves downwardly by a self-gravity and a hydraulic pressure, so that the valve cap blocks the liquid replenishing through hole at the moment. When the liquid is replenished, the liquid may push the umbrella-shaped valve core upward, so that the valve cap opens the liquid replenishing through hole at the moment. A lower end of the valve rod includes a limiting protrusion, which may avoid the umbrella-shaped valve core from being separated from the guide hole. A plurality of liquid replenishing through holes can improve a speed of liquid supply.
[0025] The one-way liquid replenishing valve may also be a liquid control device, such as a solenoid valve and a one-way valve.
[0026] As a further improvement of the above technical solution, the overhead liquid replenishing foam generator further includes a liquid storage bottle with a bottle opening arranged at a top portion, a liquid replenishing tank body, and an air mixing tank body. The liquid storing tank cavity is located in the liquid storage bottle. The liquid replenishing tank body is detachably mounted at the bottle opening of the liquid storage bottle. The air mixing tank body is detachably sleeved in the liquid replenishing tank body. The liquid replenishing channel includes a liquid replenishing pipe arranged at a bottom portion of the liquid replenishing tank body, and a liquid suction pipe connected with a lower end of the liquid replenishing pipe. An upper end of the liquid replenishing pipe extends upwardly to an upper portion of the liquid replenishing tank cavity.
[0027] In the solution, the liquid storage bottle is overhead type. The liquid storage bottle may store a large capacity of soap liquid. The liquid replenishing tank body and the air mixing tank body both have a detachable mounting structure, thereby being convenient for internal maintenance and cleaning.BRIEF DESCRIPTION OF DRAWINGS
[0028] The drawings and the embodiments are provided for a further understanding of the technical schemes of the present.
[0029] FIG. 1 is a schematic diagram of one embodiment of a foam generator provided by the present application in which an electric air pump is used;
[0030] FIG. 2 is a locally enlarged view of a part A in FIG. 1;
[0031] FIG. 3 is a locally enlarged view of a part B in FIG. 1; and
[0032] FIG. 4 is a schematic diagram of one embodiment of the foam generator provided by the present application in which a manual air pump is used.DETAILED DESCRIPTION
[0033] Specific embodiments of the present application will be described in detail in this part. Some embodiments of the present application are shown in the drawings, which are intended to make the description in the written part of the specification clear, so that a person having ordinary skill in the art can intuitively and vividly understand each technical feature and the overall technical solution of the present application. However, it should be understood as the specific embodiments described herein shall not be construed to limit the scope of protection of the present application.
[0034] In the description of the present application, it should be understood that, the orientation or position relationship related to the orientation description, such as the orientation or position relationship indicated by the terms “upper” , “lower” , “front” , “rear” , “left” , “right” , and the like is based on the orientation or position relationship shown in the drawings, which is only used for convenience of the description of the present application and simplification of the description instead of indicating or implying that the indicated device or element must have a specific orientation, and be constructed and operated in a specific orientation, and thus should not be understood as a limitation to the present application.
[0035] In the description of the present application, the term “several” if any refers to being one or more, the term “multiple” refers to being more than two, and the terms “greater than” , “less than” , “more than” , and the like are understood as not including this number, while the terms “above” , “below” , “within” , and the like are understood as including this number.
[0036] In the description of the present application, unless otherwise explicitly defined, the terms “setting” , “mounting” and “connecting” should be understood a broad sense, and those having ordinary skill in the art can reasonably determine the specific meanings of the above terms in the present application in combination with the specific contents of the technical solution.
[0037] With reference to FIG. 1 to FIG. 4, the following embodiments are made for an overhead liquid replenishing foam generator of the present application.
[0038] The overhead liquid replenishing foam generator of the embodiment includes a liquid storage tank cavity 100, a liquid replenishing tank cavity 200, an air mixing tank cavity 300, an air pressure balancing mechanism and a pump body module.
[0039] A top portion of the liquid replenishing tank cavity 200 is provided with an air suction port 210, through which the liquid replenishing tank cavity 200 may be vacuumized to form a negative pressure in the liquid replenishing tank cavity 200.
[0040] Moreover, the liquid replenishing tank cavity 200 is communicated with the liquid storage tank cavity 100 through a liquid replenishing channel.
[0041] A top portion of the air mixing tank cavity 300 of the embodiment is provided with a foam generating nozzle 310 and an air supply port 320 for performing air supply and pressurization on the air mixing tank cavity 300 through the air supply port 320 to form a high pressure in the air mixing tank cavity 300.
[0042] A bottom portion of the air mixing tank cavity 300 is communicated with the liquid replenishing tank cavity 200 through a one-way liquid replenishing valve 330. A communication direction of the one-way liquid replenishing valve 330 is a direction from the liquid replenishing tank cavity 200 to the air mixing tank cavity 300.
[0043] The foam generating nozzle 310 includes a liquid outlet channel 311 extending downwardly to the bottom portion of the air mixing tank cavity 300, an air outlet channel 312 communicated with an air cavity above a liquid level inside the air mixing tank cavity 300, and a mixing channel 313 communicated with outlets of the liquid outlet channel 311 and the air outlet channel 312. When in use, a lower end of the liquid outlet channel 311 is arranged below a liquid level of the soap liquid in the air mixing tank cavity 300, and an inlet of the air outlet channel 312 is arranged above the liquid level of the soap liquid in the air mixing tank cavity 300.
[0044] The air pressure balancing mechanism is configured to balance an air pressure between the liquid replenishing tank cavity 200 and the air mixing tank cavity 300.
[0045] The air pressure balancing mechanism of this embodiment includes a first air pressure balancing assembly 220 arranged at the top portion of the liquid replenishing tank cavity 200, and a second air pressure balancing assembly 340 arranged at the top portion of the air mixing tank cavity 300. The first air pressure balancing assembly 220 is configured to balance an air pressure between the liquid replenishing tank cavity 200 and the outside environment, and the second air pressure balancing assembly 340 is configured to balance an air pressure between the air mixing tank cavity 300 and the outside environment.
[0046] The first air pressure balancing assembly 220 of this embodiment is configured to balance the air pressure between the liquid replenishing tank cavity 200 and the outside environment, and the second air pressure balancing assembly 340 is configured to balance the air pressure between the air mixing tank cavity 300 and the outside environment, thereby realizing air pressure balance between the liquid replenishing tank cavity 200 and the air mixing tank cavity 300.
[0047] When the internal air pressure is increased suddenly, the air pressure balancing assembly may be configured to close a ventilation channel or an air overflow amount may be ignored. When the internal air pressure is not increased any more, the air pressure balance assembly is configured to make the inside communicate with the outside to realize air pressure balance between the inside and the outside.
[0048] The air pressure balancing assembly may be a series of circulation control devices, such as a solenoid valve and a microporous membrane, which will not be described in detail in the present application.
[0049] When in use, a soap liquid is stored in the liquid storage tank cavity 100. At first, an interior of the liquid replenishing tank cavity 200 is vacuumized through the air suction port 210 to form a negative pressure inside the liquid replenishing tank cavity 200. Then, the liquid in the liquid storage tank cavity 100 is sucked into the liquid replenishing tank cavity 200, and the liquid in the liquid replenishing tank cavity 200 is in turn replenished into the air mixing tank cavity 300 through the one-way liquid replenishing valve 330. When foam needs to be sprayed out, air is supplied to the air mixing tank cavity 300 through the air supply port 320 for pressurization to form a high pressure inside the air mixing tank cavity 300. The soap liquid in the air mixing tank cavity 300 is forced into the mixing channel 313 from the liquid outlet channel 311 under an action of pressure, while the air in the air mixing tank cavity 300 are also forced into the mixing channel 313 from the air outlet channel 312 under the action of pressure at the same time. Finally, the air and the soap liquid are mixed in the mixing channel 313 to form the foam, and sprayed out from the mixing channel 313 together, thereby realizing the spraying of the foam.
[0050] After the soap liquid in the air mixing tank cavity 300 is sprayed out, the soap liquid in the air mixing tank cavity 300 is reduced. After a liquid level of the soap liquid in the air mixing tank cavity 300 is lowered, alternatively, the liquid replenishing tank cavity 200 is vacuumized to form the negative pressure, the liquid in the liquid storage tank cavity 100 is sucked into the liquid replenishing tank cavity 200. After the liquid level of the soap liquid in the liquid replenishing tank cavity 200 is raised, a pressure between the air mixing tank cavity 300 and the liquid replenishing tank cavity 200 is balanced through the air pressure balancing mechanism at the moment. Then, the liquid in the liquid replenishing tank cavity 200 is supplied to the air mixing tank cavity 300 through the one-way liquid replenishing valve 330 until a liquid level of the air mixing tank cavity 300 is consistent with that of the liquid replenishing tank cavity 200. Based on these, the foam generator realizes liquid replenishment, air supply and pressurization by the negative pressure formed by vacuumizing and the air pressure balancing mechanism to form the high pressure for foam generation and spraying, thereby realizing large-capacity use without frequent liquid replenishment.
[0051] Moreover, the liquid replenishing channel is provided with a liquid replenishing outlet end 230 arranged in the liquid replenishing tank cavity 200, and a liquid replenishing inlet end 240 located in the liquid storage tank cavity 100. The one-way liquid replenishing valve 330 is lower than a horizontal height of the liquid replenishing outlet end 230.
[0052] When there is the negative pressure inside the liquid replenishing tank cavity 200, the soap liquid in the liquid storage tank cavity 100 is forced into the liquid replenishing channel through the liquid replenishing inlet end 240, and then it flows into the liquid replenishing tank cavity 200 from the liquid replenishing outlet end 230. When the air pressures of the liquid replenishing tank cavity 200 and the air mixing tank cavity 300 are balanced with external atmospheric pressure, the liquid level in the liquid replenishing tank cavity 200 is equal to that of the liquid replenishing outlet end 230, and the air mixing tank cavity 300 is replenished with the soap liquid to be in a state that the liquid level is equal to the liquid level of the liquid replenishing tank cavity 200. Therefore, liquid replenishment to the air mixing tank cavity 300 through the liquid replenishing tank cavity 200 is realized by the atmospheric pressure.
[0053] Moreover, the pump body module is provided with an air inlet end connected with the air suction port 210, and an air outlet end connected with the air supply port 320. According to the embodiment, the pump body module is configured to perform vacuumization, air supply and pressurization synchronously. It is well known from working principle analysis of the air pump that, a function of a general pressurizing air pump is to pressurize low-pressure air to form high-pressure air, that is to say, the pump body module may have a low-pressure air inlet mode for vacuumization, and a high-pressure air outlet mode for pressurization and air supply. According to the embodiment, the air inlet end of the pump body module is connected to the air suction port 210, and the air outlet end is connected to the air supply port 320. When the pump body module is operated, the liquid replenishing tank cavity 200 is vacuumized and the air mixing tank cavity 300 is pressurized simultaneously.
[0054] The pump body module may be an electric air pump 400 for realizing automatic control, as shown in FIG. 1.
[0055] During working of the electric air pump 400, the negative pressure is formed in the liquid replenishing tank cavity 200, and the high pressure is formed in the air mixing tank cavity 300. Under an influence of the negative pressure, the liquid in the liquid storage tank cavity 100 is sucked into the liquid replenishing tank cavity 200. Under an influence of the high pressure, the liquid and the air in the air mixing tank cavity 300 are mixed and squeezed together to form foam.
[0056] When the liquid level in the liquid replenishing tank cavity 200 is higher than the liquid replenishing outlet end 230, after the air pump is stopped, the liquid in the liquid replenishing tank cavity 200 may flow back to the liquid replenishing tank cavity 200 under an action of the first air pressure balancing assembly 220 of the liquid replenishing tank cavity 200 until the liquid level is equal to the liquid replenishing outlet end 230. Meanwhile, in this process, the atmospheric pressure is balanced by an action of the second air pressure balancing assembly 340, so that the liquid levels of the air mixing tank cavity 300 and the liquid replenishing tank cavity 200 are equal to the liquid replenishing outlet end 230.
[0057] As shown in FIG. 4, the pump body module may be a manual air pump 500, which generally has a balloon pump structure. Air intake and discharge are controlled through the two one-way air valves 510, so that the air in the air pump can only be discharged from the air outlet end when the air pump is squeezed, and when the air pump is reset, the air can only enter the air pump from the air inlet end.
[0058] For example, as shown in FIG. 2, the foam generating nozzle 310 includes a sleeving groove 314 arranged in the top portion of the air mixing tank cavity 300, and a hollow sleeving member 315 sleeved in the sleeving groove 314. The mixing channel 313 is arranged at a top portion of the sleeving groove 314 and communicated with the sleeving groove 314. The air outlet channel 312 is formed between an outer wall of the sleeving member 315 and an inner wall of the sleeving groove 314. The sleeving member 315 is provided with a liquid outlet pipe 316 extending downwardly to the bottom portion of the air mixing tank cavity 300. The liquid outlet channel 311 is formed in the liquid outlet pipe 316.
[0059] This embodiment further includes a foam refining unit 600, which is connected with an outlet of the mixing channel 313 through a pipeline. According to this embodiment, the foam refining unit 600 is configured to perform foam refining on a mixture of the soap liquid and the air.
[0060] As shown in FIG. 3, the one-way liquid replenishing valve 330 includes an umbrella-shaped valve core 331, and a liquid replenishing through hole 332 and a guide hole 333 which are arranged at the bottom portion of the air mixing tank cavity 300. The umbrella-shaped valve core 331 includes a valve cap 334 and a valve rod 335. The valve rod 335 is in up-down sliding fit with the guide hole 333. The liquid replenishing through hole 332 is arranged below the valve cap 334. The liquid replenishing through hole 332 is communicated with the liquid replenishing tank cavity 200. There is a plurality of liquid replenishing through holes 332 annularly arranged at intervals around an axis of the valve rod 335.
[0061] The one-way liquid replenishing valve 330 of this embodiment is realized by the structure of the umbrella-shaped valve core 331. The valve rod 335 is in sliding fit with the guide hole 333. In a free state, the umbrella-shaped valve core 331 moves downwardly by a self-gravity and a hydraulic pressure, so that the valve cap 334 blocks the liquid replenishing through hole 332 at the moment. When the liquid has to be replenished, the liquid may push the umbrella-shaped valve core 331 upward, so that the valve cap 334 opens the liquid replenishing through hole 332 at the moment. A lower end of the valve rod 335 includes a limiting protrusion, which may avoid the umbrella-shaped valve core 331 from being separated from the guide hole 333. A plurality of liquid replenishing through holes 332 can improve a speed of liquid supply.
[0062] In other embodiments, the one-way liquid replenishing valve 330 may also be a liquid control device, such as a solenoid valve and a one-way valve.
[0063] Further, the embodiment also includes a liquid storage bottle 700 with a bottle opening arranged at a top portion, a liquid replenishing tank body 800 and an air mixing tank body 900. The liquid storing tank cavity 100 is located in the liquid storage bottle 700. The liquid replenishing tank cavity 200 is arranged in the liquid replenishing tank body 800. The air mixing tank cavity 300 is arranged in the air mixing tank body 900.
[0064] The liquid replenishing tank body 800 is detachably mounted at the bottle opening of the liquid storage bottle 700. The air mixing tank body 900 is detachably sleeved in the liquid replenishing tank body 800. The liquid replenishing channel includes a liquid replenishing pipe 250 arranged at a bottom portion of the liquid replenishing tank body 800, and a liquid suction pipe 260 connected with a lower end of the liquid replenishing pipe 250. An upper end of the liquid replenishing pipe 250 extends upwardly to an upper portion of the liquid replenishing tank cavity 200.
[0065] In this embodiment, the liquid storage bottle 700 is overhead type. The liquid storage bottle 700 may store a large capacity of soap liquid. The liquid replenishing tank body 800 and the air mixing tank body 900 both have a detachable mounting structure thereby being convenient for internal maintenance and cleaning.
[0066] The above describes the some embodiments of the present application in detail, but the present application is not limited to the embodiments. Various equivalent deformations or substitutions can be made by those having ordinary skill in the art without departing from the nature of the present application, and these equivalent deformations or substitutions are all included in the scope defined by the claims of the present invention.
Claims
1.An overhead liquid replenishing foam generator, comprising:a liquid storage tank cavity (100) ;a liquid replenishing tank cavity (200) , comprising an air suction port (210) at a top portion for vacuumizing the liquid replenishing tank cavity (200) , and configured to communicate with the liquid storage tank cavity (100) through a liquid replenishing channel;an air mixing tank cavity (300) , wherein a top portion of the air mixing tank cavity (300) comprises a foam generating nozzle (310) and an air supply port (320) for performing air supply and pressurization on the air mixing tank cavity (300) , a bottom portion of the air mixing tank cavity (300) being communicated with the liquid replenishing tank cavity (200) through a one-way liquid replenishing valve (330) ; the foam generating nozzle (310) comprising a liquid outlet channel (311) extending downwardly to the bottom portion of the air mixing tank cavity (300) , an air outlet channel (312) communicated with an air cavity above a liquid level inside the air mixing tank cavity (300) , and a mixing channel (313) communicated the liquid outlet channel (311) with the air outlet channel (312) ; andan air pressure balancing mechanism configured to balance a pressure between the liquid replenishing tank cavity (200) and the air mixing tank cavity (300) .2.The overhead liquid replenishing foam generator according to claim 1, further comprisinga pump body module comprising an air inlet end connected with the air suction port (210) and an air outlet end connected with the air supply port (320) .3.The overhead liquid replenishing foam generator according to claim 2, wherein:the pump body module is an electric air pump (400) .4.The overhead liquid replenishing foam generator according to claim 2, wherein:the pump body module is a manual air pump (500) , and an air inlet end and an air outlet end of the manual air pump (500) comprise a one-way air valve (510) respectively.5.The overhead liquid replenishing foam generator according to claim 1, wherein:the air pressure balancing mechanism comprises a first air pressure balancing assembly (220) arranged at the top portion of the liquid replenishing tank cavity (200) and configured to balance an air pressure between the liquid replenishing tank cavity (200) and the outside environment, and a second air pressure balancing assembly (340) arranged at the top portion of the air mixing tank cavity (300) and configured to balance an air pressure between the air mixing tank cavity (300) and the outside environment.6.The overhead liquid replenishing foam generator according to claim 5, wherein:the liquid replenishing channel comprises a liquid replenishing outlet end (230) arranged in the liquid replenishing tank cavity (200) and a liquid replenishing inlet end (240) located in the liquid storage tank cavity (100) , so that the one-way liquid replenishing valve (330) is lower than a horizontal height of the liquid replenishing outlet end (230) .7.The overhead liquid replenishing foam generator according to claim 1, wherein:the foam generating nozzle (310) comprises a sleeving groove (314) arranged in the top portion of the air mixing tank cavity (300) and a hollow sleeving member (315) sleeved in the sleeving groove (314) , the mixing channel (313) being arranged at a top portion of the sleeving groove (314) and communicated with the sleeving groove (314) , the air outlet channel (312) being formed between the sleeving member (315) and the sleeving groove (314) , the sleeving member (315) comprising a liquid outlet pipe (316) extending downwardly to the bottom portion of the air mixing tank cavity (300) , the liquid outlet channel (311) being formed in the liquid outlet pipe (316) .8.The overhead liquid replenishing foam generator according to claim 1, further comprisinga foam refining unit (600) connected with an outlet of the mixing channel (313) through a pipeline.9.The overhead liquid replenishing foam generator according to claim 1, wherein:the one-way liquid replenishing valve (330) comprises an umbrella-shaped valve core (331) , and a liquid replenishing through hole (332) and a guide hole (333) which are arranged at the bottom portion of the air mixing tank cavity (300) , the umbrella-shaped valve core (331) comprising a valve cap (334) and a valve rod (335) which is in up-down sliding fit with the guide hole (333) , the liquid replenishing through hole (332) being arranged below the valve cap (334) and communicated with the liquid replenishing tank cavity (200) , a plurality of liquid replenishing through holes (332) being annularly arranged at intervals around an axis of the valve rod (335) .10.The overhead liquid replenishing foam generator according to claim 1, further comprisinga liquid storage bottle (700) with a bottle opening arranged at a top portion, a liquid replenishing tank body (800) and an air mixing tank body (900) , wherein the liquid storing tank cavity (100) is located in the liquid storage bottle (700) , the liquid replenishing tank body (800) being detachably mounted at the bottle opening of the liquid storage bottle (700) , the air mixing tank body (900) being detachably sleeved in the liquid replenishing tank body (800) , the liquid replenishing channel comprising a liquid replenishing pipe (250) arranged at a bottom portion of the liquid replenishing tank body (800) and a liquid suction pipe (260) connected with a lower end of the liquid replenishing pipe (250) , an upper end of the liquid replenishing pipe (250) extending upwardly to an upper portion of the liquid replenishing tank cavity (200) .