A foaming device

Abstract

A foaming device, the switching shaft is moved by the water inlet flow, and the switching shaft is moved back under the action of the reset device when the water inlet is stopped. Therefore, the switching shaft realizes reciprocating motion in the mounting groove under the cooperation of the water inlet flow and the reset device, so that the containing groove is respectively communicated with the liquid inlet and the liquid adding port, thereby automatically transferring the foaming liquid from the liquid storage cavity to the liquid mixing cavity, realizing automatic liquid adding, and each time is quantitative liquid adding, the liquid adding amount is accurately controllable, and an independent liquid pumping pump does not need to be arranged, the internal structure of the cover plate is simplified, additional noise is not generated during liquid adding, and a corresponding control program does not need to be arranged, the development process is simplified, there is no additional power loss and the late maintenance cost is reduced, and the customer experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic foaming, in particular to a foaming device. Background Art

[0002] Currently, most smart toilet seats have a foaming device. The foam generated by the foaming device can be covered on the water surface to achieve the effects of splash prevention, odor isolation, sound insulation, softening yellow scale and antibacterial, which helps to maintain the cleanliness and hygiene of the bathroom.

[0003] Currently, smart covers on the market generally use independent liquid pumps to extract foaming liquid. This type of technical solution has the following problems: 1) The installation of the liquid pump needs to occupy a certain space inside the cover, and its compatibility with the entire smart toilet must be considered during design. The piping structure between the chambers is relatively complex; 2) The operation of the independent liquid pump consumes a certain amount of electricity, which increases the energy consumption of the smart toilet. At the same time, it is necessary to add a power module or increase the power capacity of the existing power module to ensure the normal operation of the liquid pump during a power outage; 3) The cost of existing liquid pumps is relatively high, with an average unit price of about ten yuan. Once a fault occurs, the maintenance cost will increase accordingly, and the liquid pump will make a certain noise when in use, affecting the customer experience; 4) The existing liquid pump needs to rely on program periodic startup or startup through customer instructions. Corresponding control programs need to be formulated during the development process, and the development cost is relatively high. Summary of the Invention

[0004] In view of the shortcomings of the background technology, the object of the present invention is to provide a foaming device with a simple structure and no need for a liquid extraction pump.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A foaming device includes a box body, wherein a liquid storage chamber and a liquid mixing chamber are arranged above and below the box body, the liquid storage chamber is provided with a liquid adding port, and the liquid mixing chamber is provided with a liquid outlet, and further includes:

[0007] The mounting groove is provided between the liquid storage cavity and the liquid mixing cavity, and the mounting groove is provided with a liquid inlet connected to the liquid storage cavity and at least one liquid adding port connected to the liquid mixing cavity;

[0008] The switching shaft, the movable seal is adapted to the mounting groove, the switching shaft is provided with a receiving groove, and a reset device is provided between one end of the switching shaft and the mounting groove. The mounting groove is also provided with a water inlet toward the other end of the switching shaft. Part of the water flow from the water inlet is used to push the switching shaft, and the other part flows into the mixing chamber;

[0009] The two ends of the switching shaft reciprocate in the installation groove under the impact of the water flow at the water inlet and the action of the reset device. During the reciprocating movement, the receiving groove is connected to the liquid inlet and the liquid adding port respectively, thereby transferring the foaming liquid from the liquid storage chamber to the mixing liquid chamber, and mixing it with the inlet water flow to foam.

[0010] Furthermore, the mounting tank is provided with a liquid adding port connected to the liquid mixing chamber; when water flows into the water inlet, part of the water pushes the switching shaft, so that the receiving tank is connected to the liquid inlet, and the other part of the water flows into the liquid mixing chamber through the liquid adding port. When the water inlet stops flowing, the reset device pushes the switching shaft, so that the receiving tank is connected to the liquid adding port.

[0011] Furthermore, the mounting groove is respectively provided with a water inlet and a foaming liquid inlet; when the water inlet stops inletting water, the reset device pushes the switching shaft so that the receiving groove is connected to the liquid inlet, and when water is inletting into the water inlet, part of the water flow pushes the switching shaft to move so that the receiving groove is connected to the foaming liquid inlet, and the other part of the water flows into the mixing liquid chamber through the water inlet.

[0012] Furthermore, first sealing grooves are respectively provided on the surface of the switching shaft on both sides of the accommodating groove, and first sealing rings are provided in the first sealing grooves to seal and fit in the mounting groove.

[0013] Furthermore, an exhaust channel is provided in the liquid storage chamber, one end of the exhaust channel is connected to a part of the liquid inlet, and the other end of the exhaust channel is higher than the liquid level of the foaming liquid in the liquid storage chamber and connected to the atmospheric environment.

[0014] Furthermore, a mounting post is provided at one end of the switching shaft, and the reset device is a spring, one end of the spring is sleeved on the mounting post, and the other end of the spring abuts against the mounting groove.

[0015] Furthermore, a water inlet joint is provided on one side of the installation groove, the water inlet joint is provided with a water inlet, and the switching shaft is abutted against the water inlet joint under the push of the reset device.

[0016] Furthermore, pins are provided on both sides of the water inlet joint, and barbs are provided at the ends of the pins. A slot corresponding to the pins is provided on the outside of the installation groove, and the barbs are buckled on the inner end surface of the slot.

[0017] Furthermore, a clearance groove is provided on one side of the liquid storage chamber close to the water inlet joint.

[0018] Furthermore, it also includes an upper cover and a lower cover, wherein the upper cover is provided at the liquid adding port, and the lower cover is sealed and adapted to the liquid mixing cavity.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention proposes a foaming device that uses the incoming water flow to drive the switching shaft to move. When the water supply stops, the switching shaft moves back under the action of the reset device. Therefore, under the coordinated cooperation of the incoming water flow and the reset device, the switching shaft realizes reciprocating motion in the installation groove, thereby connecting the receiving groove to the liquid inlet and the liquid adding port respectively, thereby automatically transferring the foaming liquid from the liquid storage chamber to the liquid mixing chamber, realizing automatic liquid addition, and each time the liquid is added in a quantitative manner, the liquid addition amount is accurately controllable, and there is no need to set up an independent liquid extraction pump, which simplifies the internal structure of the cover plate. In addition, no additional noise is generated during the liquid addition process and no corresponding control program needs to be set up, which simplifies the development process, eliminates additional power loss, reduces subsequent maintenance costs, and improves customer experience.

[0021] 2. The present invention proposes a foaming device, in which first sealing grooves are respectively provided on both sides of the receiving groove, and a first sealing ring is provided in the first sealing groove to seal and adapt to the mounting groove, so as to ensure that the receiving groove is only connected to the liquid inlet or the liquid filling port during the reciprocating movement, thereby avoiding the liquid inlet being directly connected to the liquid filling port to cause leakage of the foaming liquid.

[0022] 3. The present invention proposes a foaming device, in which an exhaust channel is provided in the liquid storage chamber. There is a certain pressure difference between the exhaust channel and the liquid storage chamber, and the pressure in the exhaust channel is lower than that in the liquid storage chamber, so that the air in the receiving tank is discharged from the exhaust channel when flowing into the foaming liquid, thereby accelerating the speed at which the foaming liquid flows into the receiving tank.

[0023] 4. The present invention proposes a foaming device, in which a water inlet joint is provided on one side of the mounting groove. The part of the water inlet joint located in the mounting groove acts as a limit switch, so that the switching shaft abuts against the water inlet joint under the push of the reset device, ensuring that the receiving groove is connected to the liquid inlet or the liquid filling port.

[0024] 5. The present invention proposes a foaming device in which the water inlet connector is fastened to the inner end face of the slot by a barb. Compared with the common thread locking method, this connection method has high installation efficiency and is less likely to cause water leakage due to loose threads.

[0025] 6. The foaming device proposed by the present invention has a clearance groove on one side of the liquid storage chamber close to the water inlet joint, which leaves operating space for the installation workers when connecting the pipe fittings, making it easier for the water inlet joint to connect the pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1is a schematic diagram of a foaming device according to embodiment 1 of the present invention;

[0028] Figure 2 An exploded view of a foaming device according to the present invention;

[0029] Figure 3 for Figure 1 A partial enlarged view of the middle part;

[0030] Figure 4 This is a schematic diagram of a switching axis of a foaming device according to a first embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the initial state of a foaming device according to embodiment 1 of the present invention;

[0032] Figure 6 This is a schematic diagram of a water inlet state of a foaming device according to a first embodiment of the present invention;

[0033] Figure 7 This is a second schematic diagram of a water inlet state of the first embodiment of a foaming device of the present invention;

[0034] Figure 8 This is a schematic diagram of stopping water inflow in Example 1 of a foaming device of the present invention;

[0035] Figure 9 A top view of a foaming device according to a first embodiment of the present invention;

[0036] Figure 10 for Figure 9 A partial enlarged view of point B in the middle;

[0037] Figure 11 An exploded view of a second embodiment of a foaming device of the present invention;

[0038] Figure 12 A schematic diagram of a switching axis of a second embodiment of a foaming device of the present invention;

[0039] Figure 13 Schematic diagram of the initial state of a second embodiment of a foaming device of the present invention;

[0040] Figure 14 This is a schematic diagram of a water inlet state of a second embodiment of a foaming device of the present invention;

[0041] In the figure, 10, box body; 101, liquid storage chamber; 1011, give way groove; 102, mixing liquid chamber; 20, installation groove; 201, liquid inlet; 202, liquid adding port; 2031, foaming liquid adding port; 2032, water inlet adding port; 204, water inlet; 30, switching shaft; 301, receiving groove; 302, first sealing groove; 303, installation column; 40, first sealing ring; 50, reset device; 60, exhaust channel; 70, water inlet joint; 801, upper cover; 802, lower cover; 90, sealing gasket. DETAILED DESCRIPTION

[0042] The following combination Figure 1-14 The present invention will be described in detail.

[0043] A foaming device includes a box body 10, wherein a liquid storage chamber 101 and a liquid mixing chamber 102 are arranged above and below the box body 10. The liquid storage chamber 101 is provided with a liquid adding port, and the liquid mixing chamber 102 is provided with a liquid outlet. A mounting groove 20 is provided between the liquid storage chamber 101 and the liquid mixing chamber 102, and a switching shaft 30 is adapted to be movable sealed in the mounting groove 20. Specifically:

[0044] The mounting slot 20 also includes a liquid inlet 201 connected to the liquid storage chamber 101 and at least one liquid addition port 202 connected to the liquid mixing chamber 102. The switching shaft 30 also includes a receiving slot 301, and a reset device 50 is provided between one end of the switching shaft 30 and the mounting slot 20. The mounting slot 20 also includes a water inlet 204 toward the other end of the switching shaft 30. Part of the water flow from the water inlet 204 is used to propel the switching shaft 30, and the remaining part flows into the liquid mixing chamber 102 through the liquid addition port 202.

[0045] Therefore, the switching shaft 30 realizes reciprocating motion in the installation groove 20 under the coordinated cooperation of the water inlet flow and the reset device 50, thereby connecting the accommodating groove 301 to the liquid inlet 201 and the liquid adding port 202 respectively, thereby automatically transferring the foaming liquid from the liquid storage chamber 101 to the mixing liquid chamber 102, realizing automatic liquid addition, and each time the liquid is added in a quantitative manner, and the amount of liquid added is accurately controllable, thereby avoiding the need to set up an independent liquid extraction pump, simplifying the internal structure of the cover plate, reducing power loss and reducing subsequent maintenance costs.

[0046] To further illustrate the present device, the following embodiments are listed.

[0047] Example 1

[0048] In this embodiment, the mounting groove 20 is provided with a liquid inlet 201 connected to the liquid storage chamber 101 and a liquid filling port 202 connected to the liquid mixing chamber 102. When the first use is not done, no foaming liquid flows into the receiving groove 301. Figure 5 When water enters the water inlet 204, as shown in FIG. Figure 6As shown, part of the water pushes the switching shaft 30, so that the receiving tank 301 is connected to the liquid inlet 201, so that the foaming liquid in the liquid storage chamber 101 flows into the receiving tank 301 through the liquid inlet 201, and the other part of the water flows into the mixing chamber 102 through the liquid adding port 202; when the water inlet 204 stops flowing, as shown in FIG. Figure 8 As shown, the reset device 50 pushes the switching shaft 30, connecting the receiving tank 301 to the liquid adding port 202. This allows the foaming liquid in the receiving tank 301 to flow into the mixing chamber 102 through the liquid inlet 201 and mix with the water that previously flowed into the mixing chamber 102 to form a mixed foaming liquid. This water-injection process is repeated to achieve automatic addition of the foaming liquid.

[0049] In this embodiment, Figure 4 As shown, the surface of the switching shaft 30 is provided with first sealing grooves 302 on the left and right sides of the receiving groove 301. Within the first sealing grooves 302 is a first sealing ring 40 that seals against the mounting groove 20. When the water inlet 204 is empty, the first sealing ring 40 located on the right side of the receiving groove 301 isolates the liquid inlet 201 from the liquid filling port 202. When the water inlet 204 is empty, the first sealing ring 40 located on the left side of the receiving groove 301 isolates the liquid inlet 201 from the liquid filling port 202. Therefore, the two first sealing rings 40 prevent direct communication between the liquid inlet 201 and the liquid filling port 202 during the reciprocating motion of the switching shaft 30, thereby preventing leakage of the foaming liquid.

[0050] In this embodiment, Figure 7 As shown, an exhaust channel 60 is provided within the liquid storage chamber 101. One end of the exhaust channel 60 is connected to a portion of the liquid inlet 201, and the other end of the exhaust channel 60 is connected to the atmosphere. A certain pressure differential exists between the exhaust channel 60 and the liquid storage chamber 101, and the pressure within the exhaust channel 60 is lower than that within the liquid storage chamber 101. This allows air within the receiving tank 301 to be discharged through the exhaust channel 60 when the foaming liquid flows into the receiving tank 301, thereby accelerating the flow of foaming liquid into the receiving tank 301.

[0051] In this embodiment, Figure 5 As shown, a mounting post 303 is provided at one end of the switching shaft 30 , and the reset device 50 is a spring, one end of the spring is sleeved on the mounting post 303 , and the other end of the spring abuts against the mounting slot 20 .

[0052] In this embodiment, Figure 3As shown, a water inlet connector 70 is provided on one side of the mounting groove 20. The water inlet connector 70 has a water inlet port 204, and the switching shaft 30 abuts against the water inlet connector 70 under the push of the reset device 50. Furthermore, latches are provided on both sides of the water inlet connector 70, each with a barb at its end. A slot corresponding to the latch is provided on the outside of the mounting groove 20, and the barb is engaged with the inner end surface of the slot. A clearance groove 1011 is provided on the side of the liquid storage chamber 101 near the water inlet connector 70, leaving room for installation workers to connect pipes and facilitating the connection of the water inlet connector 70 to the pipes.

[0053] In this embodiment, Figure 2 As shown, it also includes an upper cover 801 and a lower cover 802 . The upper cover 801 is provided at the liquid adding port, and a sealing rubber gasket 90 is provided between the lower cover 802 and the liquid mixing chamber 102 so that the lower cover 802 is sealed and adapted to the liquid mixing chamber 102 .

[0054] Example 2

[0055] The only difference from the first embodiment is that, in this embodiment, Figure 13-14 As shown, the mounting groove 20 is provided with a liquid inlet 201 connected to the liquid storage chamber 101, a water inlet 2032 and a foaming liquid inlet 2031, and the other configurations are the same. Specifically, when the device is used for the first time and no water is added, the receiving groove 301 is connected to the liquid inlet 201, and the foaming liquid in the liquid storage chamber 101 flows into the receiving groove 301. Figure 13 When water enters the water inlet 204, as shown; Figure 14 As shown, part of the water flow pushes the switching shaft 30 to move, so that the receiving tank 301 is connected to the foaming liquid filling port 2031, and the foaming liquid flows into the mixing liquid chamber 102 through the foaming liquid filling port 2031, while the other part of the water flows into the mixing liquid chamber 102 through the water inlet filling port 2032 and mixes with the foaming liquid to form a mixed liquid; when the water inlet 204 stops feeding water, as shown in FIG. Figure 13 As shown, the reset device 50 pushes the switching shaft 30, so that the receiving groove 301 is connected to the liquid inlet 201, and the foaming liquid in the liquid storage chamber 101 flows into the receiving groove 301. By repeating the water inlet process, the automatic addition of foaming liquid can be achieved.

[0056] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand and implement the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A foaming device, comprising a box body, characterized in that: The box body is provided with a liquid storage cavity and a liquid mixing cavity on the upper and lower sides, the liquid storage cavity is provided with a liquid adding port, the liquid mixing cavity is provided with a liquid outlet, and further comprises: A mounting groove is provided between the liquid storage cavity and the liquid mixing cavity, wherein the mounting groove is provided with a liquid inlet connected to the liquid storage cavity and at least one liquid adding port connected to the liquid mixing cavity; A switching shaft, a movable seal adapted to the mounting groove, the switching shaft is provided with a receiving groove, and a reset device is provided between one end of the switching shaft and the mounting groove, the mounting groove is further provided with a water inlet toward the other end of the switching shaft, a portion of the water flow from the water inlet is used to push the switching shaft, and the other portion flows into the mixing chamber; The two ends of the switching shaft reciprocate in the mounting groove under the action of the water flow impact and the reset device at the water inlet. During the reciprocating movement, the receiving groove is connected to the liquid inlet and the liquid adding port, respectively, so that the foaming liquid is transferred from the liquid storage chamber to the liquid mixing chamber and mixed with the inlet water flow to foam.

2. A foaming device according to claim 1, characterized in that: The mounting groove is provided with a liquid adding port connected to the liquid mixing chamber; when water flows into the water inlet, part of the water pushes the switching shaft, so that the receiving groove is connected to the liquid inlet, and the other part of the water flows into the liquid mixing chamber through the liquid adding port. When the water inlet stops flowing, the reset device pushes the switching shaft, so that the receiving groove is connected to the liquid adding port.

3. A foaming device according to claim 1, characterized in that: The mounting groove is respectively provided with a water inlet and a foaming liquid inlet; when the water inlet stops inletting water, the reset device pushes the switching shaft so that the receiving groove is connected to the liquid inlet; when water is inletting into the water inlet, part of the water flow pushes the switching shaft to move so that the receiving groove is connected to the foaming liquid inlet, and the other part of the water flows into the mixing liquid chamber through the water inlet.

4. A foaming device according to claim 2 or 3, characterized in that: The switching shaft surface is provided with first sealing grooves on both sides of the accommodating groove, and the first sealing grooves are provided with first sealing rings that are sealed and adapted to the mounting groove.

5. A foaming device according to claim 4, characterized in that: An exhaust channel is provided in the liquid storage chamber, one end of the exhaust channel is connected to a portion of the liquid inlet, and the other end of the exhaust channel is higher than the liquid level of the foaming liquid in the liquid storage chamber and is connected to the atmospheric environment.

6. A foaming device according to claim 4, characterized in that: One end of the switching shaft is provided with a mounting post, and the reset device is a spring. One end of the spring is sleeved on the mounting post, and the other end of the spring abuts against the mounting groove.

7. A foaming device according to claim 4, characterized in that: A water inlet joint is provided on one side of the installation groove, the water inlet joint is provided with the water inlet, and the switching shaft is abutted against the water inlet joint under the push of the resetting device.

8. A foaming device according to claim 7, characterized in that: A latch is provided on both sides of the water inlet joint, a barb is provided at the end of the latch, a slot corresponding to the latch is provided on the outside of the installation groove, and the barb is buckled on the inner end surface of the slot.

9. A foaming device according to claim 7, characterized in that: A clearance groove is provided on one side of the liquid storage cavity close to the water inlet joint.

10. A foaming device according to any one of claims 5 to 9, characterized in that: It also includes an upper cover and a lower cover. The upper cover is provided at the liquid adding port, and the lower cover is sealed and adapted to the liquid mixing cavity.

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