Anti-siphon shower head and shower device
By using a flexible anti-reverse component in the shower head to close the water passage when siphon occurs, the problem of water pollution caused by siphon is solved, achieving an anti-siphon effect, simplifying the installation process and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 倪志桥
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-24
AI Technical Summary
Existing shower heads are prone to siphoning when the water supply pressure drops suddenly, causing contaminated water to be drawn back into the water supply pipe, threatening the safety of drinking water.
Design an anti-siphon shower head that uses an elastic anti-reverse part to open the water passage in the direction of water flow and close the water passage in the opposite direction to prevent water from entering the internal water passage of the shower. The anti-siphon component is built into the shower head, avoiding the need to install a large anti-siphon valve.
It effectively prevents the siphon effect, avoids water pollution, saves installation space and costs, and ensures the hygiene and safety of the water supply system.
Smart Images
Figure CN224542011U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bathroom technology, specifically to an anti-siphon shower head and shower device. Background Technology
[0002] Current showerheads typically lack anti-siphon functionality. When water pressure drops sharply or even becomes negative due to maintenance, water outages, or other reasons, the showerhead's nozzles, submerged in bathtub water, floor water, or other contaminated water sources (such as water containing soap, bacteria, or impurities), can become a "sucking point." Due to the pressure difference between the inside and outside of the pipes, contaminated water can be drawn back into the water supply system through the showerhead nozzles, causing secondary water pollution. This siphon backflow not only contaminates the user's own water supply pipes but can also contaminate the entire building and even the municipal water supply network, seriously threatening drinking water safety. Utility Model Content
[0003] This invention provides an anti-siphon shower head, designed to prevent water from flowing backwards from the shower head through the internal water passages of the shower unit when siphoning is possible.
[0004] This utility model also provides an anti-siphon shower head to prevent water residue from accumulating inside the pipes of a handheld shower.
[0005] This utility model is implemented as follows:
[0006] An anti-siphon shower head, comprising:
[0007] The shower head body includes a shower head and a water inlet pipe. A water-passing component is provided inside the water inlet pipe, and multiple water-passing holes are formed on the periphery of the water-passing component.
[0008] The anti-siphon component has an elastic backflow preventer, which is disposed at the end of the water passage component near the shower head. When water flows in the direction of the shower head, the backflow preventer is triggered to tilt upwards towards the shower head, opening the water passage hole. When water flows out in the opposite direction away from the shower head, the backflow preventer is triggered to adhere to the water passage component, closing the water passage hole.
[0009] Furthermore, in a preferred embodiment of this utility model, the check valve is a convex spherical surface protruding towards the water passage component. Under the action of the inlet water pressure, the periphery of the check valve converges towards the center to open the water passage hole; under the action of the outlet water pressure, the periphery of the check valve expands outward to close the water passage hole.
[0010] Furthermore, in a preferred embodiment of this utility model, the water-passing component is a concave spherical surface that mates with the convex spherical surface, and a plurality of water-passing holes are distributed in a ring around the periphery of the concave spherical surface.
[0011] Furthermore, in a preferred embodiment of the present invention, the anti-siphon component further includes a mating part, the water-passing component has a mating hole for the mating part to be inserted, and the end of the mating part that protrudes from the mating hole is provided with an anti-detachment flange.
[0012] Furthermore, in a preferred embodiment of the present invention, the water inlet pipe includes a first pipe body and a second pipe body that are sealed together, the first pipe body being connected to the shower head, and the water passage component being disposed at one end of the second pipe body near the first pipe body.
[0013] Furthermore, in a preferred embodiment of this utility model, a threaded joint is provided at the end of the second tube body away from the first tube body.
[0014] Furthermore, in a preferred embodiment of this utility model, the outer wall of the second pipe is provided with welded ribs, and the second pipe and the first pipe are sealed together by welding.
[0015] Furthermore, in a preferred embodiment of this utility model, the water-passing component is provided with an annular column on the side near the shower head, the anti-reverse part is housed in the inner cavity of the annular column, and the outer wall of the annular column is attached to the inner wall of the first pipe body.
[0016] Furthermore, in a preferred embodiment of this utility model, the inner wall of the annular column is provided with a stepped portion, and under the action of the outflowing water pressure, the periphery of the check valve abuts against the stepped portion.
[0017] This utility model embodiment also provides a shower device, including a shower head as described in any of the above.
[0018] The beneficial effects of this anti-siphon shower head and shower device are as follows: The anti-siphon shower head designed in this invention allows the anti-siphon component's check valve to be pushed open during normal water intake. When a siphon effect is possible, the check valve, under the pressure of the outflowing water, adheres to the water passage component, closing the water passage and preventing water from entering the shower's internal water circuit, thus avoiding water contamination. The anti-siphon component is built into the shower head, eliminating the need for a bulky anti-siphon valve on the water supply line, resulting in a simple structure and significant savings in installation space and cost. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the shower head of Embodiment 1 of this utility model;
[0021] Figure 2 yes Figure 1 A schematic diagram showing the exploded structure of the shower head;
[0022] Figure 3 yes Figure 1 A schematic diagram of the structure of a shower head when water enters;
[0023] Figure 4 yes Figure 1 A schematic diagram of the structure of a shower head when water is being sprayed.
[0024] Figure 5 yes Figure 1 A schematic diagram showing the exploded structure of the anti-siphon component and the water-passing component.
[0025] Icons: 100-Shower head; 10-Shower body; 11-Shower head; 111-Switch panel; 112-Button assembly; 12-Inlet pipe; 121-First pipe body; 122-Second pipe body; 123-Welded rib; 124-Threaded connector; 13-Water passage component; 131-Water passage hole; 132-Matching hole; 133-Annular column; 134-Stepped part; 20-Anti-siphon component; 21-Reverse check part; 22-Matching part; 221-Anti-detachment flange. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0031] Example 1
[0032] Reference Figures 1-5 As shown, this embodiment provides an anti-siphon shower head 100, including a shower body 10 and an anti-siphon component 20. The anti-siphon component 20 is installed inside the shower body 10 to prevent water inside the shower body 10 from flowing back into the internal water passage of the shower, thus playing an anti-siphon role.
[0033] Specifically, in this embodiment, the shower head body 10 includes a shower head 11 and a water inlet pipe 12. The shower head 11 is equipped with a switching panel 111, a button assembly 112, etc. The specific structure of the shower head 11 is described in the prior art and will not be repeated here. The water inlet pipe 12 is used to supply water to the shower head 11. A water passage component 13 is provided inside the water inlet pipe 12. Multiple water passage holes 131 are opened on the periphery of the water passage component 13, and the water flows to the shower head 11 through the water passage holes 131.
[0034] The anti-siphon component 20 is installed on the water-passing component 13 and includes a backflow preventer 21 and a mating part 22. The water-passing component 13 has a mating hole 132, and the mating part 22 is inserted into the mating hole 132 to fix the anti-siphon component 20.
[0035] For details, please refer to Figure 3 and Figure 4 As shown, the anti-reverse part 21 is an elastic structure, and its material can be, for example, silicone or rubber. The anti-reverse part 21 is located at the end of the water-passing component 13 near the shower head 11. When water flows towards the shower head 11, the periphery of the anti-reverse part 21 is triggered to tilt upwards towards the shower head 11, opening the water passage 131. When water flows out in the opposite direction from the shower head 11, the anti-reverse part 21 is triggered to adhere to the water-passing component 13, closing the water passage 131.
[0036] Further, please refer to Figure 5In one embodiment, the anti-reverse part 21 has a first surface a facing the shower head 11 and a second surface b facing the water passage component 13. The mating part 22 connects to the second surface b of the anti-reverse part 21. The anti-reverse part 21 is a convex spherical surface protruding towards the water passage component 13; that is, the second surface b of the anti-reverse part 21 is a convex spherical surface. When the anti-reverse part 21 is not deformed, a water passage exists between the periphery of the anti-reverse part 21 and the water passage hole 131 of the water passage component 13, ensuring normal water intake to the shower head 11. Under the action of the inlet water pressure, the periphery of the anti-reverse part 21 converges towards the center, opening the water passage hole 131. Under the action of the outlet water pressure, the periphery of the anti-reverse part 21 expands outward, closing the water passage hole 131.
[0037] More preferably, in order to achieve a better anti-siphon effect, the surface of the water-passing part 13 near the backflow preventer 21 is a concave spherical surface. The concave spherical surface and the convex spherical surface cooperate with each other. When the water flows out in a direction away from the shower head 11, under the action of the water pressure, the convex spherical surface of the backflow preventer 21 and the concave spherical surface of the water-passing part 13 can be tightly fitted, thereby effectively preventing the water from flowing out of the water passage hole 131.
[0038] Furthermore, in one embodiment, a plurality of water passage holes 131 are arranged in a ring around the periphery of the concave spherical surface of the water passage component 13. The mating hole 132 is opened at the middle position of the water passage component 13, so that the anti-siphon component 20 is fixed in the middle of the water inlet pipe 12, thereby better opening and closing the water passage holes.
[0039] More preferably, the end of the through-hole 132 of the mating part 22 is provided with an anti-detachment flange 221, which restricts the anti-siphon component 20 from detaching along the water inlet direction. Furthermore, the sidewall of the anti-detachment flange 221 is set as a tapered surface to facilitate insertion into the mating hole. The anti-siphon component 20 and the water-passing component 13 are connected by an insertion joint, resulting in a simple structure and convenient installation.
[0040] More preferably, in this embodiment, the anti-reverse part 21 and the mating part 22 of the anti-siphon component 20 are an integral structure, both made of elastic material.
[0041] Furthermore, the water inlet pipe 12 includes a first pipe body 121 and a second pipe body 122 that are sealed together. The first pipe body 121 is connected to the shower head 11, and the water-passing component 13 is disposed at the end of the second pipe body 122 near the first pipe body 121. Specifically, the water-passing component 13 can be integrally formed at the end of the second pipe body 122, or it can be fixed at the end of the second pipe body 122 by welding or other methods. By setting the first pipe body 121 and the second pipe body 122, during the product manufacturing process, the anti-siphon component 20 can be assembled onto the second pipe body 122 first, and then the first pipe body 121 and the second pipe body 122 can be sealed together, reducing the difficulty of installation.
[0042] Furthermore, the outer wall of the second pipe body 122 is provided with welded ribs 123, and the second pipe body 122 and the first pipe body 121 are sealed together by welding. Sealing through welding provides a better sealing effect for the pipeline.
[0043] Furthermore, the end of the second pipe body 122 away from the first pipe body 121 is provided with a threaded connector 124. The threaded connector 124 facilitates connection to the water inlet pipe of the shower device.
[0044] Furthermore, in one embodiment, the water-passing component 13 is provided with an annular column 133 on the side near the shower head 11, and the check valve 21 is accommodated in the inner cavity of the annular column 133, with the outer wall of the annular column 133 fitting against the inner wall of the first pipe body 121.
[0045] The inner wall of the annular column 133 is provided with a stepped portion 134. Under the water pressure of the water flow flowing away from the direction of the shower head 11, the periphery of the check valve 21 abuts against the stepped portion 134. By setting the annular column 133, a check valve 21 structure with a longer radial length can be adapted. Under the action of the water pressure, the periphery of the check valve 21 abuts only against the side wall of the annular column 133, forming a better sealing effect for the water passage component 13 and further improving the anti-siphon effect.
[0046] This embodiment also provides a shower device (not shown), including the shower head 100 as described above. Other structures of the shower device can be referred to in the prior art, and will not be described in detail here.
[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A shower head with anti-siphon properties, characterized in that, include: The shower body includes a shower head and a water inlet pipe. A water passage component is provided inside the water inlet pipe, and multiple water passage holes are opened on the periphery of the water passage component. as well as The anti-siphon component has an elastic backflow preventer, which is disposed at the end of the water passage component near the shower head. When water flows in the direction of the shower head, the backflow preventer is triggered to tilt upwards towards the shower head, opening the water passage hole. When water flows out in the opposite direction away from the shower head, the backflow preventer is triggered to adhere to the water passage component, closing the water passage hole.
2. The anti-siphon shower head according to claim 1, characterized in that, The check valve is a convex spherical surface protruding towards the water passage. Under the action of the inlet water pressure, the periphery of the check valve converges towards the center to open the water passage; under the action of the outlet water pressure, the periphery of the check valve expands outward to close the water passage.
3. The anti-siphon shower head according to claim 2, characterized in that, The water-passing component is a concave spherical surface that mates with the convex spherical surface, and a plurality of water-passing holes are distributed in a ring around the periphery of the concave spherical surface.
4. The anti-siphon shower head according to claim 1, characterized in that, The anti-siphon component also includes a mating part, and the water-passing component has a mating hole for the mating part to be inserted into, and the end of the mating part that extends out of the mating hole is provided with an anti-detachment flange.
5. The anti-siphon shower head according to claim 1, characterized in that, The water inlet pipe includes a first pipe body and a second pipe body that are sealed together. The first pipe body is connected to the shower head, and the water passage component is disposed at one end of the second pipe body near the first pipe body.
6. The anti-siphon shower head according to claim 5, characterized in that, The second tube body has a threaded joint at the end away from the first tube body.
7. The anti-siphon shower head according to claim 5, characterized in that, The outer wall of the second pipe is provided with welded ribs, and the second pipe and the first pipe are sealed together by welding.
8. The anti-siphon shower head according to claim 5, characterized in that, The water-passing component has an annular column on the side near the shower head, and the anti-reverse part is housed in the inner cavity of the annular column. The outer wall of the annular column is attached to the inner wall of the first pipe body.
9. The anti-siphon shower head according to claim 8, characterized in that, The inner wall of the annular column is provided with a stepped portion, and under the action of the outflowing water pressure, the periphery of the check valve abuts against the stepped portion.
10. A shower device, characterized in that, Includes the shower head as described in any one of claims 1 to 9.