Foaming device

Abstract

The invention discloses a foaming device, and relates to the technical field of intelligent bathroom equipment, the foaming device comprises a water inlet pipe connected with tap water, a foaming agent container and a foam outlet pipe, the water inlet pipe is connected with a foam maker, the foam maker is connected with the foam outlet pipe, an outlet of the foaming agent container is connected with the foam maker, and the foam outlet pipe is connected with a shower head. Compared with the prior art, the problems that an existing foaming device is high in energy consumption, large in noise, poor in durability and slow in foaming can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of intelligent bathroom equipment, in particular to an automatic foaming device for equipment requiring foaming, such as intelligent bathroom equipment. Background Art

[0002] With the emergence of intelligent bathroom equipment, especially intelligent toilets or shower equipment for bathing, in addition to automatic flushing and cleaning, an automatic foaming device has been added to automatically fill the toilet with foam to prevent splashing and antibacterial. The existing foaming device generally has two electric pumps, one connected to the tap water inlet pipe and the outlet of the foaming agent container, which is used to extract the foaming agent. After the foaming agent is mixed with water, it is necessary to connect another electric pump and then connect the foaming pipe to provide power for blowing foam into the toilet or shower. Due to the use of two electric pumps, in addition to high energy consumption, there is also a lot of noise, and the electric pump is used to control the extraction of the foaming agent. Because the amount of foaming agent output is small and the number of times is large, it can only be foamed well, which will cause the problem of high start and stop frequency of the electric pump and poor durability; in addition, the foaming is also slow, and the general foaming time is 7-8 seconds. Summary of the invention

[0003] The problem to be solved by the present invention is to provide a foaming device to solve the problems of high energy consumption, high noise, poor durability and slow foaming of the existing foaming device.

[0004] In order to solve the above problems, the technical solution of the present invention is: the foaming device includes a water inlet pipe connected to tap water, a foaming agent container, and a foaming pipe, the water inlet pipe is connected to the foamer, the foamer is connected to the foaming pipe, the foaming agent container outlet is connected to the foamer, and the foaming pipe is connected to a shower head.

[0005] In the above technical scheme, a more specific scheme may be: the foamer includes a venturi tube connecting the water inlet pipe and the bubble outlet pipe, the inlet and outlet on the left and right sides of the venturi tube are respectively connected to the water inlet pipe and the bubble outlet pipe, the liquid suction port of the venturi tube is connected to the foaming agent container outlet through a connecting pipe, the foaming agent container outlet is provided with an air inlet pipe that penetrates the foaming agent liquid surface, and the air inlet pipe is provided with a liquid inlet above the foaming agent container outlet for the foaming agent to flow in.

[0006] In the above technical scheme, a more specific scheme can also be: the foamer includes a venturi tube connecting the water inlet pipe and the bubble outlet pipe, the venturi tube includes an inner tube and an outer tube nested in each other, the middle section of the outer tube is provided with a liquid suction port and the inner diameter from the middle section to the outlet section gradually decreases to form a transition section, the inlet section of the inner tube is arranged outside the outer tube, the inner diameter of the part of the inner tube inside the outer tube gradually decreases and stops before the outlet section of the outer tube, a connecting round block with four axial spiral water holes is embedded in the inner tube at the position of the inlet section, the inlet section of the inner tube is connected to the water inlet pipe, the outlet section of the outer tube is connected to the bubble outlet, the liquid suction port of the venturi tube is connected to the outlet of the foaming agent container through a connecting pipe, the outlet of the foaming agent container is provided with an air inlet pipe that penetrates the foaming agent liquid surface, and the air inlet pipe is provided with a liquid inlet for the foaming agent to flow in above the outlet of the foaming agent container.

[0007] Further: an adjustment screw extending into the wall of the connecting pipe and used for adjusting the amount of liquid passing through the connecting pipe is provided on one side of the connecting pipe.

[0008] Further: the foaming agent container is a box.

[0009] In the above technical scheme, a more specific scheme can also be: the foamer includes a cylinder with one end connected to the outlet of the foaming agent container and the other end connected to the bubble outlet, a gear pump is axially arranged in the cylinder from the outlet of the foaming agent container, the gear pump is connected to the impeller through a reducer, and the cylinder is radially connected to the water inlet pipe on one side of the impeller.

[0010] Further: the foaming agent container is a cylindrical body, and its outer diameter is the same as the outer diameter of the cylindrical body.

[0011] Further: a solenoid valve is provided on the water inlet pipe, and the solenoid valve is connected to a DC power supply through a touch button.

[0012] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art: The foaming device uses the water flow disturbance generated by the pressure difference of the venturi tube between the water inlet pipe and the foaming pipe of the tap water to stir the foaming agent to produce foam, or uses the impeller connected to the gear pump through the reducer to stir the foaming agent to produce foam, which reduces at least one electric pump, saves energy consumption and manufacturing and use costs, and reduces the noise to almost no (there is no noise when using the venturi tube). In addition, since the foaming principle is to foam the foaming liquid by water flow disturbance, the foaming speed is fast and the foaming is uniform, and the foaming liquid directly enters the disturbed water flow and is directly connected to the foaming pipe, the entire foaming process and the foaming process are optimized and simplified, so the foaming time is short, which is shortened from 7-8 seconds of the original foaming time of the foaming device using dual electric pumps to 4 seconds after using the foaming device. After the foaming device foams, the terminal can be connected to intelligent kitchen and bathroom equipment such as toilets, shower heads, and small shower heads of dishwashers. It has a wide range of applications and low cost, and is suitable for widespread promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a front view of the first embodiment of the present invention; Figure 2 yes Figure 1 AA section view; Figure 3 is a bottom-up axonometric view of the first embodiment of the present invention; Figure 4 is a main axonometric view of the first embodiment of the present invention; Figure 5 is a cross-sectional view of a venturi tube 1 according to embodiment 1 of the present invention; Figure 6 is a cross-sectional view of a venturi tube 2 according to embodiment 1 of the present invention; Figure 7 It is an axonometric view of the connecting round block and the spiral water hole of the venturi tube 2 of the first embodiment of the present invention; Figure 8 is a front view of the second embodiment of the present invention; Fig. 9 yes Figure 8 BB cross-sectional view; Fig.10 is a top view of the second embodiment of the present invention; Markings in the figure: water inlet pipe 1, solenoid valve 2, touch button 3, DC power supply 4, box 5, bubble pipe 6, venturi tube 7, water inlet 7-1, water outlet 7-2, suction pipe 7-3, suction port 7-4, inner tube 7-11, outer tube 7-12, spiral water hole 7-13, connecting circle 7-14, connecting pipe 8, adjusting screw 9, shower head 10, cylinder body 11, cylinder 12, gear pump 13, reducer 14, impeller 15, air inlet pipe 20, liquid inlet 21. DETAILED DESCRIPTION

[0014] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings: Embodiment 1: Figures 1 to 7 The foaming device shown includes a water inlet pipe 1 connected to tap water, a foaming agent container, and a foaming pipe 6. The water inlet pipe 1 is connected to the foamer, the foamer is connected to the foaming pipe 6, the foaming agent container outlet is connected to the foamer, and the foaming pipe is connected to the shower head 10, which can increase the foaming effect.

[0015] The foamer includes a venturi tube 7 connected to a water inlet pipe 1 and a bubble outlet pipe 6, the inlet and outlet on the left and right sides of the venturi tube 7 are respectively connected to the water inlet pipe 1 and the bubble outlet pipe 6, the liquid suction port 7-4 of the venturi tube is connected to the outlet of the foaming agent container through a connecting pipe 8, an air inlet pipe 20 penetrating the foaming agent liquid surface is provided on the outlet of the foaming agent container, and a liquid inlet 21 for the foaming agent to flow in is provided above the outlet of the foaming agent container. In order to minimize noise and avoid sound generated by air intake in the air inlet pipe, a muffler can be installed on the air inlet pipe.

[0016] like Figure 5 The venturi tube 7 here includes a vertically arranged suction pipe 7-3 for sucking liquid, and the left and right sides of the suction pipe are connected with a water inlet body 7-1 and a water outlet body 7-2. The water inlet body 7-1 and the water outlet body 7-2 are both conical and have a smaller diameter at the part connected to the suction inlet. The average inner diameter of the water inlet body is smaller than that of the water outlet body.

[0017] The venturi tube 7 can also be the following structure, such as Figure 6 , Figure 7 As shown, the venturi tube 7 includes an inner tube 7-11 and an outer tube 7-12 which are nested with each other. The middle section of the outer tube is provided with a liquid suction port 7-4 and the inner diameter gradually decreases from the middle section to the outlet section to form a transition section. The inlet section of the inner tube 7-11 is arranged outside the outer tube 7-12. The inner diameter of the inner tube 7-11 inside the outer tube gradually decreases and ends before the outlet section of the outer tube. A connecting round block 7-14 with four axial spiral water holes 7-13 is embedded in the inner tube 7-11 at the position of the inlet section. The inner tube 7-11 The inlet section of the outer tube 7-12 is connected to the water inlet pipe 1, and the outlet section of the outer tube 7-12 is connected to the bubble outlet pipe 6. After water enters the inner tube and is pressurized by the four axial spiral water holes 7-13, it comes out at the end of the transition section before the outlet section of the outer tube, and enters the outlet section of the outer tube together with the foaming liquid entering from the suction port 7-4 to mix. A mixing chamber of water and foaming liquid is formed inside the outlet section of the outer tube 7-12. The water and foaming liquid are mixed and formed into foam under the action of pressure, and then come out from the bubble outlet pipe 6, and more uniform and dense foam is sprayed out under the spray pressure of the shower head 10.

[0018] One side of the connecting pipe 8 is provided with an adjusting screw 9 which extends into the connecting pipe wall and is used to adjust the amount of liquid passing through the connecting pipe. The foaming agent container here is a box 5 for holding the foaming liquid, and the outlet of the box 5 is at the bottom, connected to the suction port 7-4 of the liquid of the venturi tube.

[0019] The Venturi tube uses the Bernoulli principle, which is the basic principle used in hydraulics before the establishment of the continuous medium theory equation of fluid mechanics. Its essence is the conservation of mechanical energy of the fluid. The Bernoulli principle states that in an ideal fluid (i.e., an incompressible, inviscid fluid), an increase in flow velocity will lead to a decrease in static pressure, and vice versa. This means that when the fluid flows steadily, the sum of the kinetic energy, gravitational potential energy, and pressure potential energy of the fluid remains unchanged. When an ideal positive pressure fluid is in steady motion under the action of potential volume force, the equation of motion (i.e., the Euler equation) is integrated along the streamline to express the conservation of mechanical energy of the moving fluid. For an incompressible homogeneous fluid in a gravitational field, the equation is p+ρgh+(1 / 2)×ρv^2=c. In the formula, p, ρ, and v are the pressure, density, and velocity of the fluid, respectively; h is the vertical height; g is the acceleration due to gravity; and c is a constant. Each term in the above equation represents the pressure energy p, gravitational potential energy ρgh and kinetic energy (1 / 2) ×ρv^2 of a unit volume of fluid. During the movement along the streamline, the sum remains unchanged, that is, the total energy is conserved. However, the total energy (that is, the constant value in the above equation) may be different between streamlines. For gases, gravity can be ignored, and the equation is simplified to p+(1 / 2) ×ρv^2=constant (p0). Each term is called static pressure, dynamic pressure and total pressure. Obviously, as the velocity increases in the flow, the pressure decreases; as the velocity decreases, the pressure increases; when the velocity drops to zero, the pressure reaches the maximum (theoretically, it should be equal to the total pressure). The lift generated by the wing of an aircraft is that the speed of the lower wing surface is low and the pressure is high, while the speed of the upper wing surface is high and the pressure is low, so the combined force is upward. According to this equation, the velocity can be obtained by measuring the total pressure and static pressure of the fluid, which becomes the principle of pitot tube velocity measurement. In irrotational flow, the irrotational condition can also be used to integrate the Euler equation to obtain the same result but with a different meaning. In this case, the constant in the formula remains unchanged in the entire flow field, indicating that the fluid on each streamline has the same total energy, and the equation is applicable between any two points in the entire flow field. In viscous flow, viscous friction consumes mechanical energy and generates heat, and mechanical energy is not conserved. When promoting the use of the Bernoulli equation, the mechanical energy loss term should be added. The foaming device uses the water flow disturbance generated by the pressure difference of the Venturi tube between the water inlet pipe and the bubble outlet pipe of the tap water to stir the foaming agent to produce foam, reducing two electric pumps, saving energy consumption and manufacturing and use costs, and reducing noise to zero; one side of the connecting pipe 8 is provided with an adjustment screw 9 that extends into the connecting pipe wall and is used to adjust the amount of liquid passing through the connecting pipe 6, and the amount of foaming liquid can be adjusted according to the water flow rate.

[0020] A solenoid valve 2 is provided on the water inlet pipe 1, and the solenoid valve 2 is connected to a DC power supply 4 through a touch button 3. The solenoid valve can automatically control whether water is to flow in, and the touch button 3 can be manually touched to realize manual control.

[0021] Embodiment 2: Figures 8 to 10The foaming device shown includes a water inlet pipe 1 connected to tap water, a foaming agent container, and a foaming pipe 6. The water inlet pipe 1 is connected to the foamer, the foamer is connected to the foaming pipe 6, the foaming agent container outlet is connected to the foamer, and the foaming pipe is connected to the shower head 10.

[0022] The foamer includes a cylinder 12 connected to the outlet of the foaming agent container at one end and to the foam outlet at the other end, a gear pump 13 is arranged axially from the outlet of the foaming agent container in the cylinder 12, the gear pump 13 is connected to the impeller 15 through a reducer 14, and the cylinder 12 is radially connected to the water inlet pipe 1 at one side of the impeller 15. The foaming agent container is a cylindrical body 11 for containing the foaming liquid, and its outer diameter is the same as the outer diameter of the cylinder 12.

[0023] The foaming device uses a blade wheel connected to a gear pump through a reducer between a water inlet pipe and a foam outlet pipe to stir the foaming agent to produce foam, thereby reducing an electric pump, saving energy consumption and manufacturing and use costs, and greatly reducing noise. The blade wheel is used to stir the foaming liquid, so the foaming speed is fast and the foaming is uniform.

[0024] A solenoid valve 2 is provided on the water inlet pipe 1, and the solenoid valve 2 is connected to a DC power supply 4 through a touch button 3. The solenoid valve can automatically control whether water is to flow in, and the touch button 3 can be manually touched to realize manual control.

[0025] The foaming device uses the water flow disturbance generated by the pressure difference of the venturi tube 7 between the water inlet pipe and the bubble outlet pipe of the tap water to stir the foaming agent to produce foam, or uses the impeller 15 connected to the gear pump 13 through the reducer 14 to stir the foaming agent to produce foam, at least one electric pump is reduced, which not only saves energy consumption and manufacturing and use costs, but also reduces the noise to almost zero (there is no noise when using the venturi tube method). In addition, since the foaming principle is to use the water flow disturbance to foam the foaming liquid, the foaming speed is fast and the foaming is uniform, and the foaming liquid directly enters the disturbed water flow and is directly connected to the bubble outlet pipe, the entire foaming process and the foaming process are optimized and simplified, so the foaming time is short, and the foaming time is shortened from 7-8 seconds in the original foaming device using dual electric pumps to 4 seconds after using the foaming device. After foaming, the terminal can be connected to a toilet, a shower head, a small shower head of a dishwasher, and other smart kitchen and bathroom equipment. The foaming device can also be used to foam car wash liquid. It has high foaming efficiency, a wide range of applications, and low cost, and is suitable for widespread promotion.

Claims

1. A foaming device, comprising a water inlet pipe connected to tap water, a foaming agent container, and a foaming pipe, characterized in that: The water inlet pipe is connected to the foamer, the foamer is connected to the foaming pipe, the foaming agent container outlet is connected to the foamer, and the foaming pipe is connected to the shower head.

2. The foaming device according to claim 1, characterized in that: The foamer includes a venturi tube connecting the water inlet pipe and the bubble outlet pipe, the inlet and outlet on the left and right sides of the venturi tube are respectively connected to the water inlet pipe and the bubble outlet pipe, the liquid suction port of the venturi tube is connected to the outlet of the foaming agent container through a connecting pipe, an air inlet pipe penetrating the foaming agent liquid surface is provided on the outlet of the foaming agent container, and the air inlet pipe is provided with a liquid inlet for the foaming agent to flow in above the outlet of the foaming agent container.

3. The foaming device according to claim 1, characterized in that: The foamer includes a venturi tube connecting the water inlet pipe and the bubble outlet pipe, the venturi tube includes an inner tube and an outer tube nested with each other, the middle section of the outer tube is provided with a liquid suction port, and the inner diameter from the middle section to the outlet section gradually decreases to form a transition section, the inlet section of the inner tube is arranged outside the outer tube, the inner diameter of the part of the inner tube inside the outer tube gradually decreases and stops before the outlet section of the outer tube, a connecting round block with four axial spiral water holes is embedded in the inner tube at the position of the inlet section, the inlet section of the inner tube is connected to the water inlet pipe, the outlet section of the outer tube is connected to the bubble outlet, the liquid suction port of the venturi tube is connected to the outlet of the foaming agent container through a connecting pipe, the outlet of the foaming agent container is provided with an air inlet pipe that penetrates the foaming agent liquid surface, and the air inlet pipe is provided with a liquid inlet for the foaming agent to flow in above the outlet of the foaming agent container.

4. The foaming device according to claim 1 or 2, characterized in that: An adjusting screw extending into the wall of the connecting pipe and used for adjusting the amount of liquid passing through the connecting pipe is provided on one side of the connecting pipe.

5. The foaming device according to claim 4, characterized in that: The foaming agent container is a box body.

6. The foaming device according to claim 1, characterized in that: The foamer includes a cylinder with one end connected to the outlet of the foaming agent container and the other end connected to the foaming port. A gear pump is axially arranged in the cylinder from the outlet of the foaming agent container. The gear pump is connected to the impeller through a reducer. The cylinder is radially connected to the water inlet pipe on one side of the impeller.

7. The foaming device according to claim 8, characterized in that: The foaming agent container is a cylindrical body, and its outer diameter is the same as the outer diameter of the cylinder.

8. The foaming device according to any one of claims 1 to 7, characterized in that: The water inlet pipe is provided with a solenoid valve, and the solenoid valve is connected to a DC power supply through a touch button.

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