Waterway switching valve with foaming function

Abstract

The utility model provides a waterway switching valve with a foaming function, which comprises a switching valve main body, and the switching valve main body is provided with a water inlet, a water outlet, an air suction port and a liquid inlet. The periphery of the water outlet is coated with a water outlet channel, a gap is formed between the inner wall of the water outlet channel and the periphery of the water outlet, and the air suction hole and the liquid inlet are formed in the periphery of the water outlet channel and communicated with the gap. When water flows out of the switching valve body, due to the fact that a gap exists between the water outlet and the water outlet channel, negative pressure can be generated in the gap, the suction effect is achieved on the air suction port and the liquid inlet, and external air and foaming stock solution are sucked into the water outlet channel, mixed with water sprayed out of the water outlet and foamed. The foaming structure provided by the utility model utilizes the Venturi effect, is simple in overall structure and convenient to install, and in addition, the foaming structure is arranged at the water outlet, so that the length of a mixing cavity of foaming liquid, air and water is greatly increased, and the foaming effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen and bathroom, in particular to a water channel switching valve with a foaming function. Background Art

[0002] After flushing, the toilet will continue to discharge water through the flush ring valve or the upper water outlet valve. This water can be stored in the toilet trap to form a water seal, which can effectively isolate harmful gases from the sewer and help maintain the stability of the drainage system. At present, toilets on the market have further proposed a foam shield function, which forms a layer of foam on the water seal of the trap, which not only improves the anti-odor effect, but also has a splash-proof effect.

[0003] The foam shield function requires a foaming structure to be set up in the toilet. The existing foaming structures are mostly set on the upper punch, which has the problems of complex structure, high cost and difficult installation. At the same time, there is also the problem of uneven mixing of air, foaming liquid and water due to the short stroke, which leads to poor foaming effect. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a switching valve structure with simple structure and good foaming effect.

[0005] A waterway switching valve with a foaming function, comprising a switching valve body, wherein the switching valve body is provided with a water inlet, a water outlet, an air suction port, a liquid inlet and a water outlet channel;

[0006] The water outlet channel is covered on the periphery of the water outlet, and a gap is provided between the inner wall of the water outlet channel and the periphery of the water outlet. The air inlet and the liquid inlet are arranged on the periphery of the water outlet channel and are both connected to the gap.

[0007] When the switching valve body discharges water, due to the gap between the water outlet and the water outlet channel, the gap will generate negative pressure, thereby forming a suction effect on the air inlet and the liquid inlet, sucking the external air and foaming liquid into the water outlet channel, mixing with the water sprayed from the water outlet and foaming. The foaming structure provided by the utility model utilizes the Venturi effect, has a simple overall structure, and is easy to install. On the other hand, the foaming structure is arranged at the water outlet, so that the subsequent path becomes a mixing chamber, which greatly increases the length of the mixing chamber of the foaming liquid, air and water, thereby improving the foaming effect.

[0008] Preferably, the air inlet and the liquid inlet are both perpendicular to the water outlet channel, which is easy to shape.

[0009] Preferably, the air inlet and the liquid inlet are symmetrically and horizontally arranged on both sides of the water outlet channel to facilitate the docking of the external hose.

[0010] Preferably, the water outlet channel and the water outlet are coaxially arranged, which is easy to shape and avoids uneven suction force on the air inlet and the liquid inlet.

[0011] Preferably, it also includes an upper punch, which is tubular and has one end as a water inlet end that is connected to the water outlet end of the water outlet channel.

[0012] Preferably, the water outlet end of the water outlet channel is a stepped opening, and the water inlet end of the upper punch is inserted into the stepped opening, so that the installation is firm, reliable and simple.

[0013] Preferably, the inner hole of the upper punch forms a mixing chamber. To avoid hydraulic damage, the diameter of the mixing chamber is equal to the diameter of the water outlet channel. After the upper punch is inserted into the water outlet, the mixing chamber docks with the water outlet channel.

[0014] Preferably, an annular groove is provided on the outer periphery of the water inlet end of the upper punch, and a sealing ring is sleeved in the annular groove to avoid water leakage.

[0015] Preferably, two symmetrical limiting holes are provided at the circumference of the end of the water outlet channel, and an annular groove covering the limiting holes is provided; a groove is provided at the outer periphery of the water inlet end of the upper punch corresponding to the limiting hole, a U-shaped clip is snapped into the annular groove, and limiting protrusions are provided at both ends of the clip that pass through the limiting holes and snap into the groove, thereby ensuring that the upper punch can be stably installed on the switching valve body.

[0016] Preferably, it further comprises a water inlet joint, which is installed at the water inlet of the switching valve body. The water inlet joint is provided with a vertical U-shaped water passage, and when the installation height of the switching valve body is lower than the water tank or the water level in the water tank, the water inlet joint can prevent water from automatically flowing from the water tank into the switching valve body when the water pump is not turned on.

[0017] Preferably, the switching valve body is provided with a downward drain port and a drain direction switching component, the water outlet is located at the top of the drain port, and the drain direction switching component moves back and forth between the drain port and the water outlet to control the switching valve body to discharge water through the water outlet or the drain port.

[0018] Preferably, in order to reduce the difficulty of molding the switching body, the shell of the switching valve body is divided into an upper shell and a lower shell, the water outlet is arranged in the upper shell, and the water inlet and the drain are arranged in the lower shell.

[0019] From the above description of the utility model, it can be seen that the utility model has the following beneficial effects:

[0020] The foaming structure provided by the utility model utilizes the Venturi effect, and the foaming structure can suck air and foaming liquid without additional power;

[0021] The foaming structure provided by the utility model has the advantages of simple structure, easy installation and low cost;

[0022] The utility model provides a foaming structure at the water outlet of the switching valve, so that the subsequent path becomes a mixing chamber, which greatly increases the length of the mixing chamber of the foaming liquid, air and water, thereby improving the foaming effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0024] in:

[0025] Figure 1 It is an axial side view of a waterway switching valve with a foaming function;

[0026] Figure 2 This is an exploded view of a water circuit switching valve with a foaming function;

[0027] Figure 3 This is a cross-sectional view of a water circuit switching valve with a foaming function. Figure 1 ;

[0028] Figure 4 This is a cross-sectional view of a water circuit switching valve with a foaming function. Figure 2 ;

[0029] Figure 5 This is a partial enlarged view of a water circuit switching valve with a foaming function; (About Figure 4 A)

[0030] Figure 6 This is an application diagram of a water circuit switching valve with a foaming function;

[0031] Figures 1 to 6 The symbols are: switching valve body 1, water inlet 11, water outlet 12, air intake 13, liquid inlet 14, water outlet channel 15, limiting hole 151, annular groove 152, drain port 16, drain direction switching member 17, upper shell 18, lower shell 19, upper punch 2, mixing chamber 21, groove 22, water inlet connector 3, buckle 4. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0033] See also Figures 1 to 6 A waterway switching valve with a foaming function comprises a switching valve body 1, wherein the switching valve body 1 is provided with a water inlet 11, a water outlet 12, an air inlet 13, a liquid inlet 14 and a water outlet channel 15, wherein:

[0034] The outer periphery of the water outlet 12 is covered with a water outlet channel 15 , and a gap exists between the inner wall of the water outlet channel 15 and the outer periphery of the water outlet 12 . The air suction hole and the liquid inlet 14 are arranged on the periphery of the water outlet channel 15 and are connected to the gap.

[0035] When the switching valve body 1 discharges water, due to the gap between the water outlet 12 and the water outlet channel 15, the gap will generate negative pressure, thereby forming a suction effect on the air intake port 13 and the liquid inlet 14, and the external air and foaming liquid are sucked into the water outlet channel 15, mixed with the water sprayed from the water outlet 12 to form bubbles. Preferably, the water outlet channel 15 and the water outlet 12 are coaxially arranged, which is easy to shape and avoids uneven suction force on the air intake port 13 and the liquid inlet 14.

[0036] In this embodiment, the air inlet 13 and the liquid inlet 14 are both perpendicular to the water outlet channel 15, which is easy to shape. In addition, the air inlet 13 and the liquid inlet 14 are symmetrically and horizontally arranged on both sides of the water outlet channel 15, which is convenient for docking with an external hose.

[0037] In one embodiment, the switching valve body 1 is provided with a downward drain port 16 and a drain direction switching member 17, and the water outlet 12 is located at the top of the drain port 16. The drain direction switching member 17 reciprocates between the drain port 16 and the water outlet 12 to control the switching valve body 1 to discharge water 16 through the water outlet 12 or the drain port 16.

[0038] In addition, in order to reduce the difficulty of molding the switching body, the shell of the switching valve body 1 is divided into an upper shell 18 and a lower shell 19 , the water outlet 12 is arranged in the upper shell 18 , and the water inlet 11 and the drain port 16 are arranged in the lower shell 19 .

[0039] On the basis of the above embodiments, in one embodiment, the water circuit switching valve also includes an upper punch 2, which is tubular and has one end as a water inlet end, and is connected to the water outlet end of the water outlet channel 15. Preferably, an annular groove is provided on the outer periphery of the water inlet end of the upper punch 2, and a sealing ring is provided inside the annular groove to avoid water leakage.

[0040] In addition, the outlet end of the water outlet channel 15 is a stepped opening, and the water inlet end of the upper punch 2 is inserted into the stepped opening, so the installation is firm, reliable, and simple. At the same time, the inner hole of the upper punch 2 forms a mixing chamber 21. To avoid hydraulic damage, the diameter of the mixing chamber 21 is equal to the diameter of the water outlet channel 15. After the upper punch 2 is inserted into the water outlet 12, the mixing chamber 21 docks with the water outlet channel 15.

[0041] In other embodiments, the end periphery of the water outlet channel 15 is provided with two symmetrical limiting holes 151, and is provided with an annular groove 152 covering the limiting holes 151; the outer periphery of the water inlet end of the upper punch 2 is provided with a groove 22 corresponding to the limiting hole 151, a U-shaped clip 4 is snapped into the annular groove 152, and both ends of the clip 4 are provided with limiting protrusions that pass through the limiting holes 151 and snap into the groove 22, thereby ensuring that the upper punch 2 can be stably installed on the switching valve body 1.

[0042] In another embodiment, the water circuit switching valve further comprises a water inlet joint 3, which is installed at the water inlet 11 of the switching valve body 1. The water inlet joint 3 is provided with a vertical and U-shaped water passage. When the installation height of the switching valve body 1 is lower than the water tank or the water level in the water tank, Figure 6 The water inlet joint can prevent water from automatically flowing into the switching valve body 1 from the water tank when the water pump is not turned on.

[0043] The foaming structure provided by the utility model utilizes the Venturi effect. The foaming structure can suck air and foaming liquid without additional power, and has the advantages of simple overall structure, easy installation and low cost. On the other hand, the foaming structure is arranged at the water outlet 12, so that the subsequent path becomes the mixing chamber 21, which greatly increases the length of the mixing chamber 21 of the foaming liquid, air and water, thereby improving the foaming effect.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] In the present utility model, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0049] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A water channel switching valve with a foaming function, characterized in that: It comprises a switching valve body, wherein the switching valve body is provided with a water inlet, a water outlet, an air intake, a liquid inlet and a water outlet channel; The water outlet channel is covered on the periphery of the water outlet, and a gap is provided between the inner wall of the water outlet channel and the periphery of the water outlet. The air inlet and the liquid inlet are arranged on the periphery of the water outlet channel and are both connected to the gap.

2. A waterway switching valve with a foaming function according to claim 1, characterized in that: The air inlet and the liquid inlet are both perpendicular to the water outlet channel.

3. The waterway switching valve with a foaming function according to claim 1, characterized in that: The air inlet and the liquid inlet are symmetrically and horizontally arranged on both sides of the water outlet channel.

4. The waterway switching valve with a foaming function according to claim 1, characterized in that: The water outlet channel and the water outlet are coaxially arranged.

5. The waterway switching valve with a foaming function according to claim 1, characterized in that: It also includes an upper punch, which is tubular and has one end as a water inlet end that is connected to the water outlet end of the water outlet channel.

6. A water channel switching valve with a foaming function according to claim 5, characterized in that: The water outlet end of the water outlet channel is a step opening, and the water inlet end of the upper punch is inserted into the step opening.

7. A water channel switching valve with a foaming function according to claim 6, characterized in that: The inner hole of the upper punch forms a mixing chamber, the diameter of the mixing chamber is equal to the diameter of the water outlet channel, and after the upper punch is inserted into the water outlet, the mixing chamber butts against the water outlet channel.

8. The waterway switching valve with a foaming function according to claim 5, characterized in that: An annular groove is arranged on the outer periphery of the water inlet end of the upper punch, and a sealing ring is sleeved in the annular groove.

9. The waterway switching valve with a foaming function according to claim 8, characterized in that: The end periphery of the water outlet channel is provided with two symmetrical limiting holes, and an annular groove covering the limiting holes is provided; the outer periphery of the water inlet end of the upper punch is provided with a groove corresponding to the limiting hole, a U-shaped buckle is snapped into the annular groove, and limiting protrusions are provided at both ends of the buckle to pass through the limiting hole and snap into the groove.

10. The water channel switching valve with a foaming function according to claim 1, characterized in that: It also includes a water inlet joint, which is installed at the water inlet of the switching valve body, and the water inlet joint is provided with a vertical and U-shaped water passage.

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