Liquid switch and foaming device

Abstract

The application relates to a liquid switching switch and a foaming device, the switch comprising a valve body and a reversing shaft; the valve body is internally formed with a first cavity, a first liquid inlet, a first liquid outlet and a first through hole communicated with the first cavity, the number of the first liquid inlets is not less than two, the first liquid inlets are distributed in a first direction at intervals, and are connected with liquid storage containers containing cleaning liquid, the first liquid outlet is connected with a liquid pumping pump of the foaming device; the reversing shaft is at least partially inserted into the first cavity through the first through hole, the reversing shaft is internally formed with a second cavity and a second liquid inlet and a second liquid outlet communicated with the second cavity, the number of the second liquid inlets is consistent with that of the first liquid inlets, and the second liquid inlets are distributed in the first direction at intervals, the second liquid outlet is communicated with the first liquid outlet; the reversing shaft can rotate relative to the valve body to select corresponding first liquid inlets and second liquid inlets to be communicated, and at the same time, only one second liquid inlet is communicated with the first liquid inlet corresponding in position.

Description

Technical Field

[0001] This application relates to the field of bathroom product technology, and in particular to a liquid switching switch and a foaming device. Background Technology

[0002] In existing foaming devices, multiple different cleaning solutions are typically used alternately or selectively to generate foams with different functions or formulations. The traditional solution is to equip each cleaning solution with an independent pump, controlling the start and stop of different pumps to select and deliver the liquid. While this "multi-pump parallel" approach is functionally feasible, it has significant drawbacks: firstly, the use of multiple pumps significantly increases the hardware cost, size, and overall weight of the equipment; secondly, the complex piping connections and electrical controls lead to decreased system reliability and increased maintenance costs. Utility Model Content

[0003] Therefore, it is necessary to provide a liquid switching switch and a foaming device to address the aforementioned problems.

[0004] This application provides a liquid switching switch, applied in a foaming device, comprising:

[0005] The valve body has a first cavity and a first liquid inlet, a first liquid outlet and a first through hole communicating with the first cavity. The number of the first liquid inlets is not less than two. The first liquid inlets are spaced apart along a first direction and are connected to a liquid storage container containing cleaning liquid. The first liquid outlet is connected to the liquid pump of the foaming device.

[0006] A reversing shaft is inserted into the first cavity through the first through hole at least partially. A second cavity is formed inside the reversing shaft, and a second liquid inlet and a second liquid outlet are connected to the second cavity. The number of the second liquid inlets is the same as the number of the first liquid inlets, and they are distributed at intervals along the first direction. The second liquid outlet is connected to the first liquid outlet.

[0007] The reversing shaft can rotate relative to the valve body to select the corresponding first liquid inlet and second liquid inlet for connection. At any given time, only one of the second liquid inlets is connected to the first liquid inlet corresponding to the position.

[0008] The liquid switching switch provided in this application includes a valve body and a reversing shaft. The reversing shaft is inserted into a first cavity inside the valve body through a first through hole. A second cavity is formed inside the reversing valve, along with a second inlet and a second outlet that cooperate with the first inlet and the first outlet of the valve body. By rotating the reversing shaft, the target second inlet on the reversing shaft is selectively aligned with the corresponding first inlet on the valve body. At any given time, only one second inlet is connected to the corresponding first inlet, thereby constructing an independent flow channel from a specific liquid storage container to a shared pump. Compared to the traditional solution that equips each liquid with a dedicated pump, this solution, through the cooperation of the valve body and the reversing shaft, allows the entire foaming device to meet the delivery needs of multiple cleaning liquids with only one pump. This not only reduces the number of pumps and lowers product costs, but also allows users to easily switch between different liquid sources by rotating the exposed part of the reversing shaft, without the need for complex electronic control or multiple operations. This mechanical method is highly reliable and less prone to errors.

[0009] In one embodiment, the first cavity has a cylindrical cross-section, and the portion of the reversing shaft inserted into the first cavity is also cylindrical. By defining the first cavity of the valve body and the corresponding portion of the reversing shaft as cylindrical, this design, through a rotationally symmetrical mating structure, allows the reversing shaft to rotate smoothly and stably within the valve body. This not only reduces the difficulty of machining parts and production costs, but more importantly, ensures the tightness and consistency of the contact surface between the reversing shaft and the valve body, thereby effectively improving sealing performance, preventing liquid leakage, and enhancing the operational reliability and service life of the switching switch.

[0010] In one embodiment, a sealing ring is provided between the surface of the reversing shaft and the cavity wall of the first cavity. By providing a sealing ring between the reversing shaft and the valve body cavity wall, and by introducing a sealing ring on the dynamic mating surface, the sealing effect at the rotation interface of the reversing shaft, which corresponds to the first cavity, is enhanced, effectively preventing liquid leakage.

[0011] In one embodiment, the liquid switching switch according to claim 1, is characterized in that,

[0012] The commutator shaft surface has at least two annular grooves, each of which is equipped with a sealing ring. By providing at least two annular grooves on the commutator shaft surface and equipping each with a sealing ring, multiple independent sealing lines are constructed. This divides the mating surface between the long commutator shaft and the first cavity into multiple independent sealing zones. This not only reduces the possibility of liquid leakage along the gap between the commutator shaft surface and the cavity wall of the first cavity, but also ensures through redundant design that even if a single sealing ring fails occasionally, the switch can still maintain its basic sealing function.

[0013] In one embodiment, the second outlet is an elongated arc-shaped perforation. This elongated arc-shaped perforation ensures that the second outlet remains connected to the first outlet on the valve body throughout the rotation of the reversing shaft, guaranteeing continuous unobstructed flow from the reversing shaft to the pump during the switching cycle.

[0014] In one embodiment, the first outlet is an elongated groove structure. By specifically defining the first outlet on the valve body as an elongated groove structure, the second outlet on the reversing shaft can always be covered within and communicated with this elongated groove, regardless of how the reversing shaft rotates.

[0015] In one embodiment, a limiting structure is provided between the reversing shaft and the valve body. The limiting structure is used to limit the rotation angle range of the reversing shaft relative to the valve body. By providing a limiting structure between the reversing shaft and the valve body to limit the rotation angle range of the reversing shaft, the mechanical constraint precisely controls the reversing shaft to rotate only within a preset safe angle, effectively preventing misalignment between the second liquid inlet and the corresponding first liquid inlet due to excessive rotation.

[0016] In one embodiment, the reversing shaft includes a shaft body and a rotary key, the rotary key being drively connected to the shaft body, the shaft body being inserted into the first cavity through the first through hole, and the shaft body having a second cavity, a second liquid inlet, and a second liquid outlet.

[0017] A foaming device includes the liquid storage container, the liquid pump, the air pump, the mixing container, and the liquid switching switch described in any one of the above.

[0018] The number of liquid storage containers is the same as the number of the first liquid inlets. Each liquid storage container is connected to a corresponding first liquid inlet. The output ends of the air pump and the liquid pump are connected to the mixing container. The mixing container is also selectively connected to an external water source.

[0019] The foaming device disclosed in this application integrates the aforementioned liquid switching switch into a complete foaming device, which works in coordination with the liquid storage container and the liquid pump. Through the liquid switching switch, it is possible to flexibly and reliably extract specified liquids from multiple liquid storage containers using only one liquid pump. With a simple mechanical structure, it realizes on-demand extraction of multiple liquid sources, which greatly reduces the product cost of the foaming device.

[0020] In one embodiment, the liquid storage container is equipped with a check valve at its opening, and a trigger and a mounting groove are provided at the opening of the first liquid inlet. When the liquid storage container is inserted upside down into the mounting groove, the trigger compresses the check valve to change its on / off state. Through the cooperation of the check valve and the trigger, the liquid circuit is automatically opened and closed when the liquid storage container is connected to the switch. This not only makes the installation and replacement of the liquid storage container extremely simple and quick, but also ensures that when the liquid storage container is removed, the check valve automatically resets and closes under its own elasticity or structural action, preventing liquid leakage.

[0021] In one embodiment, the liquid storage container is at least partially transparent to detect the level of the cleaning fluid. By making the liquid storage container transparent or partially transparent, a direct, low-cost liquid level monitoring solution is provided to the user without the need for additional power or complex sensors. The user can visually monitor the remaining amount of various cleaning fluids in real time, enabling timely and proactive replenishment or replacement.

[0022] In one embodiment, the liquid storage container includes a cap and a bottle body, and the cap and the bottle body are connected by magnetic attraction. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the foaming device in one embodiment;

[0024] Figure 2 This is a cross-sectional view of the foaming device in one embodiment;

[0025] Figure 3 This is a schematic diagram of the liquid switching switch in one embodiment;

[0026] Figure 4 An exploded view of a liquid switching switch in one embodiment;

[0027] Figure 5 A cross-section of the valve body in one embodiment Figure 1 ;

[0028] Figure 6 A cross-section of the valve body in one embodiment Figure 2 ;

[0029] Figure 7 A cross-section of the valve body in one embodiment Figure 3 ;

[0030] Figure 8 This is a cross-sectional view of the shaft in one embodiment.

[0031] Figure label:

[0032] 10 Liquid switching switch, 11 Valve body, 12 Reversing shaft, 13 Sealing ring, 110 First cavity, 120 Second cavity, 130 Annular groove, 14 Assembly groove, 121 Shaft, 122 Rotary key, 111 Trigger, 1101 Limiting block, 101 First liquid inlet, 102 First liquid outlet, 103 First through hole, 104 Second liquid inlet, 105 Second liquid outlet, 106 Arc-shaped notch;

[0033] 20 Liquid storage container, 21 Bottle cap, 22 Bottle body, 210 Check valve. Detailed Implementation

[0034] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0035] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate for the embodiments of this application described herein.

[0036] like Figures 1 to 8 As shown, this embodiment provides a liquid switching switch, applied in a foaming device. The switch includes:

[0037] The valve body 11 has a first cavity 110 and a first liquid inlet 101, a first liquid outlet 102 and a first through hole 103 connected to the first cavity 110. The number of first liquid inlets 101 is not less than two. The first liquid inlets 101 are spaced apart along a first direction and are connected to a liquid storage container 20 containing cleaning liquid. The first liquid outlet 102 is connected to the liquid pump of the foaming device.

[0038] A reversing shaft 12 is inserted into a first cavity 110 through a first through hole 103 at least partially. A second cavity 120 is formed inside the reversing shaft 12, and a second liquid inlet 104 and a second liquid outlet 105 are connected to the second cavity 120. The number of second liquid inlets 104 is the same as the number of first liquid inlets 101, and they are distributed at intervals along a first direction. The second liquid outlet 105 is connected to the first liquid outlet 102.

[0039] The reversing shaft 12 can rotate relative to the valve body 11 to select the corresponding first liquid inlet 101 and second liquid inlet 104 for connection. At any given time, only one of the second liquid inlets 104 is connected to the corresponding first liquid inlet 101.

[0040] This application discloses a liquid switching switch 10, including a valve body 11 and a reversing shaft 12. The reversing shaft 12 is inserted into a first cavity 110 inside the valve body 11 through a first through hole 103. A second cavity 120 is formed inside the reversing valve, along with a second inlet 104 and a second outlet 105 that cooperate with the first inlet 101 and the first outlet 102 of the valve body 11. By rotating the reversing shaft 12, the target second inlet 104 on the reversing shaft 12 is selectively aligned with the corresponding first inlet 101 on the valve body 11. At any given time, only one of the second inlets 104 is aligned with the first inlet 101 on the valve body 11. The corresponding first liquid inlet 101 is connected, thereby constructing an independent flow channel from the specific liquid storage container 20 to the common liquid pump. Compared with the traditional solution that equips each liquid with a dedicated pump, this solution, through the cooperation of the valve body 11 and the reversing shaft 12, allows the entire foaming device to be equipped with only one liquid pump to meet the delivery needs of multiple cleaning liquids. This not only reduces the number of liquid pumps and lowers product costs, but also allows users to easily switch between different liquid sources by rotating the exposed part of the reversing shaft 12 without the need for complex electronic control or multiple operations. This mechanical method is very reliable and less prone to errors.

[0041] The valve body 11 may have a first cavity 110, a first liquid inlet 101, a first liquid outlet 102, and a first through hole 103. The first cavity 110 serves as the center for liquid collection and distribution. The number of first liquid inlets 101 may be no less than two, and the no less than two first liquid inlets 101 are arranged at intervals along a first direction. Each first liquid inlet 101 is connected to a storage container 20 containing different cleaning liquids. For example, there are two first liquid inlets 101, one of which is connected to a storage container 20 containing shower gel, and the other is connected to a storage container 20 containing shampoo.

[0042] The reversing shaft 12 may have a second cavity 120, a second liquid inlet 104, and a second liquid outlet 105; the second cavity 120 serves as a temporary liquid flow channel; the number of second liquid inlets 104 may be multiple, and their number and spacing are consistent with the first liquid inlet 101 on the valve body 11.

[0043] Specifically, by rotating the reversing shaft 12, the user can align one of its second inlet ports 104 with a corresponding first inlet port 101 on the valve body 11. When a pair of inlets are aligned, a complete liquid flow channel is formed. The flow path is: liquid storage container 20, first inlet port 101, second inlet port 104, second cavity 120, second outlet port 105, first outlet port 102, and pump. Furthermore, at any given time, only one second inlet port 104 is connected to the corresponding first inlet port 101. This ensures that the liquids do not mix, and the pump draws liquid from only a single source at any given time.

[0044] In one embodiment, such as Figure 2 , Figure 4 , Figure 5 and Figure 8 As shown, the cross-section of the first cavity 110 is cylindrical, and the portion of the reversing shaft 12 inserted into the first cavity 110 is cylindrical.

[0045] The above embodiment further defines the first cavity 110 of the valve body 11 and the corresponding part of the reversing shaft 12 as cylindrical. This design, by adopting a rotationally symmetrical mating structure, enables the reversing shaft 12 to rotate smoothly and stably within the valve body 11. This not only reduces the processing difficulty and production cost of the parts, but more importantly, ensures the tightness and consistency of the contact surface between the reversing shaft 12 and the valve body 11, thereby effectively improving the sealing performance, preventing liquid leakage, and enhancing the working reliability and service life of the switching switch.

[0046] In one embodiment, such as Figure 2 As shown, a sealing ring 13 is provided between the surface of the reversing shaft 12 and the cavity wall of the first cavity 110.

[0047] The above embodiment further specifies that a sealing ring 13 is provided between the reversing shaft 12 and the cavity wall of the valve body 11. By introducing the sealing ring 13 on the dynamic mating surface, the sealing effect at the rotation interface of the reversing shaft 12, which is equivalent to the first cavity 110, is enhanced, and liquid leakage can be effectively prevented.

[0048] In one embodiment, such as Figure 2 As shown, the surface of the commutator shaft 12 has at least two annular grooves 130, and each annular groove 130 is equipped with a sealing ring 13.

[0049] The above embodiments further specify that no less than two annular grooves 130 are provided on the surface of the reversing shaft 12 and each is equipped with a sealing ring 13, thereby constructing multiple independent sealing defenses. This can divide the mating surface between the long reversing shaft 12 and the first cavity 110 into multiple independent sealing intervals. This not only reduces the possibility of liquid leakage along the gap between the surface of the reversing shaft 12 and the cavity wall of the first cavity 110, but also ensures through redundant design that even if a single sealing ring 13 fails occasionally, the switch can still maintain basic sealing function.

[0050] In one embodiment, such as Figure 8 As shown, the second liquid outlet 105 is a long, arc-shaped perforated structure.

[0051] The above embodiment further defines the second liquid outlet 105 as an elongated arc-shaped hole structure. This design ensures that the second liquid outlet 105 can always maintain communication with the first liquid outlet 102 on the valve body 11 during the rotation of the reversing shaft 12, thus ensuring the continuous unobstructed flow channel from the reversing shaft 12 to the pump during the switching cycle.

[0052] It should be noted that the length of the second outlet 105 can be shortened so that the second outlet 105 on the reversing shaft 12 can always be connected to the first outlet 102 on the valve body 11.

[0053] In one embodiment, such as Figures 3 to 6 As shown, the first liquid outlet 102 is a long strip-shaped tank structure.

[0054] The above embodiment further defines the first liquid outlet 102 on the valve body 11 as a long strip-shaped groove structure, so that no matter how the reversing shaft 12 rotates, the second liquid outlet 105 on the reversing shaft 12 can always be covered within the range of this long strip-shaped groove and remain in communication with it.

[0055] In one embodiment, such as Figure 6 and Figure 8 As shown, a limiting structure is provided between the reversing shaft 12 and the valve body 11. The limiting structure is used to limit the rotation angle range of the reversing shaft 12 relative to the valve body 11.

[0056] The above embodiment further specifies that a limiting structure is provided between the reversing shaft 12 and the valve body 11 to limit the rotation angle range of the reversing shaft 12. Through mechanical constraints, the reversing shaft 12 can only rotate within a preset safe angle, effectively preventing the second liquid inlet 104 of the target from being misaligned with the corresponding first liquid inlet 101 due to excessive rotation.

[0057] The first cavity 110 has a limiting block 1101, and the reversing shaft 12 has an arc-shaped notch 106. The limiting block 1101 is slidably disposed on the arc-shaped notch 106, and the limiting block 1101 and the arc-shaped notch 106 cooperate to form a limiting structure. It should be noted that the size of the arc-shaped notch 106 affects the rotation angle range of the reversing shaft 12 relative to the valve body 11.

[0058] like Figures 1 to 2 As shown, a foaming device is provided, which includes a liquid storage container 20, a liquid pump, an air pump, a mixing container, and the liquid switching switch 10 mentioned above.

[0059] The number of liquid storage containers 20 is the same as the number of first liquid inlets 101. The liquid storage containers 20 are connected one-to-one with the first liquid inlets 101. The output ends of the air pump and the liquid pump are connected to the mixing container. The mixing container is also selectively connected to an external water source.

[0060] The foaming device disclosed in this application integrates the aforementioned liquid switching switch 10 into a complete foaming device, which works in coordination with the liquid storage container 20 and the liquid pump. Through the liquid switching switch 10, it is possible to flexibly and reliably extract specified liquids from multiple liquid storage containers 20 using only one liquid pump. With a simple mechanical structure, it realizes the on-demand extraction of multiple liquid sources, which greatly reduces the product cost of the foaming device.

[0061] In one embodiment, such as Figure 2 and Figure 3 As shown, the bottle mouth of the liquid storage container 20 is provided with a check valve 210, and the opening of the first liquid inlet 101 is provided with a trigger 111 and an assembly groove 140. When the bottle mouth of the liquid storage container 20 is inserted into the assembly groove 140, the trigger 111 squeezes the check valve 210 to change the opening and closing state of the check valve 210.

[0062] The above embodiments further define the cooperation between the check valve 210 and the trigger 111, realizing the automatic opening and closing of the liquid circuit when the liquid storage container 20 is connected to the switch. This not only makes the installation and replacement of the liquid storage container 20 extremely simple and quick, but also ensures that when the liquid storage container 20 is removed, the check valve 210 can automatically reset and close under its own elasticity or structural action to prevent liquid leakage.

[0063] Specifically, when the user inverts the bottle neck of the liquid storage container 20 and inserts it into the assembly slot 140, the trigger 111 will actively squeeze the check valve 210 on the container, changing it from a normally closed state to an open state, thereby automatically establishing a liquid passage; conversely, when the liquid storage container 20 is removed, the check valve 210 will automatically reset and close under its own elasticity or structural action to prevent liquid leakage.

[0064] In one embodiment, the liquid storage container 20 is at least partially made of a transparent material to detect the level of the cleaning fluid.

[0065] The above embodiments further specify that the liquid storage container 20 is transparent or partially transparent, providing users with a most direct, low-cost liquid level monitoring solution that does not require additional power or complex sensors. Users can monitor the remaining amount of various cleaning fluids in real time with the naked eye, so as to replenish or replace them in a timely and proactive manner.

[0066] In one embodiment, such as Figures 1 to 2 As shown, the liquid storage container 20 includes a cap 21 and a bottle body 22, and the cap 21 and the bottle body 22 are connected by magnetic attraction.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above embodiments merely illustrate several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A liquid switching switch, used in a foaming device, characterized in that, include: The valve body (11) has a first cavity (110) and a first liquid inlet (101), a first liquid outlet (102) and a first through hole (103) connected to the first cavity (110). The number of the first liquid inlets (101) is not less than two. The first liquid inlets (101) are spaced apart along a first direction and connected to a liquid storage container (20) containing cleaning liquid. The first liquid outlet (102) is connected to the liquid pump of the foaming device. A reversing shaft (12) is inserted into the first cavity (110) at least partially through the first through hole (103). A second cavity (120) is formed in the reversing shaft (12), and a second liquid inlet (104) and a second liquid outlet (105) are connected to the second cavity (120). The number of the second liquid inlets (104) is the same as the number of the first liquid inlets (101), and they are distributed at intervals along the first direction. The second liquid outlet (105) is connected to the first liquid outlet (102). The reversing shaft (12) can rotate relative to the valve body (11) to select the corresponding first liquid inlet (101) and second liquid inlet (104) for connection. At any given time, only one of the second liquid inlets (104) is connected to the first liquid inlet (101) corresponding to the position.

2. The liquid switching switch according to claim 1, characterized in that, The first cavity (110) has a cylindrical cross-section, and the portion of the reversing shaft (12) inserted into the first cavity (110) is cylindrical.

3. The liquid switching switch according to claim 2, characterized in that, A sealing ring (13) is provided between the surface of the reversing shaft (12) and the cavity wall of the first cavity (110).

4. The liquid switching switch according to claim 3, characterized in that, The reversing shaft (12) has at least two annular grooves (130) formed on its surface, and each annular groove (130) is provided with a sealing ring (13).

5. The liquid switching switch according to any one of claims 1-4, characterized in that, The second liquid outlet (105) is a long, arc-shaped hole structure; And / or, The first liquid outlet (102) is a long strip-shaped tank structure.

6. The liquid switching switch according to claim 5, characterized in that, A limiting structure is provided between the reversing shaft (12) and the valve body (11), and the limiting structure is used to limit the rotation angle range of the reversing shaft (12) relative to the valve body (11).

7. The liquid switching switch (10) according to claim 1, characterized in that, The reversing shaft (12) includes a shaft body (121) and a rotary key (122). The rotary key (122) is connected to the shaft body (121) in a transmission manner. The shaft body (121) is inserted into the first cavity (110) through the first through hole (103). The shaft body (121) has a second cavity (120), a second liquid inlet (104), and a second liquid outlet (105).

8. A foaming device, characterized in that, Includes the liquid storage container (20), the liquid pump, the air pump, the mixing container, and the liquid switching switch (10) as described in any one of claims 1-7. The number of the liquid storage containers (20) is the same as the number of the first liquid inlets (101). The liquid storage containers (20) are connected to the first liquid inlets (101) in a one-to-one correspondence. The output ends of the air pump and the liquid pump are connected to the mixing container. The mixing container is also selectively connected to an external water source.

9. The foaming device according to claim 8, characterized in that, The liquid storage container (20) is provided with a check valve (210) at its bottle mouth. The opening of the first liquid inlet (101) is provided with a trigger (111) and an assembly groove (140). When the bottle mouth of the liquid storage container (20) is inserted upside down into the assembly groove (140), the trigger (111) squeezes the check valve (210) to change the opening and closing state of the check valve (210).

10. The foaming device according to claim 8, characterized in that, The liquid storage container (20) is at least partially made of transparent material to detect the level of the cleaning fluid; And / or, The liquid storage container (20) includes a cap (21) and a bottle body (22), and the cap (21) and the bottle body (22) are connected by magnetic attraction.

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