Water inlet valve with low noise function

Abstract

The utility model discloses a water inlet valve with a low noise function, which comprises a shell of the water inlet valve, a water inlet pipe and an anti-siphon plug are arranged in the shell, the anti-siphon plug is arranged on the periphery of the water inlet pipe, and the periphery of the water inlet pipe and the inner periphery of the anti-siphon plug can form a water passing channel. A plurality of ribs are annularly distributed on the periphery of the anti-siphon plug and can be connected with the inner circumferential wall of the shell in a matched mode, a water passing hole is formed between every two adjacent ribs and the shell, a drainage channel can be formed between the periphery of the water inlet pipe and the inner periphery of the shell, and water flow in the water passing channels can be drained to the drainage channel through the water holes. The water inlet valve can reduce noise generated by water flow impact during flushing.

Description

Technical Field

[0001] The utility model relates to a water inlet valve with a low noise function, which is suitable for drainage accessories of a toilet. Background Art

[0002] Among the accessories for toilet drainage, water inlet valves with anti-siphon plugs are mainly used. However, the water outlets of the anti-siphon plugs are mostly designed as two spiral water outlets. Since there are only two water outlets, in order to ensure the water flow rate, the cross-section of each water outlet must be designed to be large enough to ensure that each flushing can complete the flushing work. However, this will cause each water flow to have a greater impact on the side wall of the outer shell, thereby generating greater noise. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a water inlet valve with a low noise function.

[0004] The utility model is realized by the following technical solutions:

[0005] A water inlet valve with a low noise function comprises a shell of the water inlet valve, a water inlet pipe and an anti-siphon plug are arranged in the shell, the anti-siphon plug is arranged on the outer periphery of the water inlet pipe, the outer periphery of the water inlet pipe and the inner periphery of the anti-siphon plug can form a water passage, a plurality of ribs are arranged in a ring around the outer periphery of the anti-siphon plug, the ribs can fit tightly with the inner circumferential wall of the shell, a water hole is formed between two adjacent ribs and the shell, a drainage channel can be formed between the outer periphery of the water inlet pipe and the inner periphery of the shell, and water flow in the water passage can be discharged to the drainage channel through the water hole.

[0006] In the embodiment of the utility model, at least four ribs are arranged on the outer circumference of the anti-siphon plug.

[0007] In the embodiment of the utility model, at least one annular boss is arranged on the outer peripheral wall of the anti-siphon plug, and the annular boss can be tightly matched with the inner peripheral wall of the water inlet pipe.

[0008] In the embodiment of the utility model, the anti-siphon plug is provided with a trumpet-shaped upper opening at the upper end, the shell is provided with a step surface, and the lower end surface of the upper opening can be mounted on the step surface.

[0009] In an embodiment of the utility model, a necked portion is provided at the lower end of the anti-siphon plug, and the smallest diameter of the necked portion can fit tightly with the outer peripheral wall of the water inlet pipe. An opening is provided on the side wall of the necked portion, and the opening can connect the inner and outer sides of the anti-siphon plug, and the water passage can flow to the water hole through the opening.

[0010] In the embodiment of the utility model, an annular boss is arranged on the outer periphery of the anti-siphon plug located above the opening to ensure that the water flowing out of the opening flows downward to the water through hole.

[0011] In the embodiment of the utility model, the anti-siphon plug between the opening and the water hole is provided with a water-guiding inclined surface.

[0012] In the embodiment of the utility model, a water baffle is arranged on the outer periphery of the water inlet pipe above the opening.

[0013] The utility model discloses a water inlet valve with a low noise function, which has the following beneficial effects: a plurality of ribs are arranged on the outer periphery of the bottom of the anti-siphon plug, and the ribs and the inner wall of the shell form more than three water holes, and the water flow is divided through the plurality of water holes, and the water flow is buffered and guided at the same time, and then flows out along the inner wall of the body, which can reduce the impact of the water flow on the side wall, allow the water flow to flow out in an orderly manner, and further reduce the noise generated by the impact of the water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the anti-siphon plug in the utility model. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0018] 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" 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.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not 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 one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0022] Referring to the drawings in the specification, a water inlet valve with a low noise function includes a shell 10 of the water inlet valve, a water inlet pipe 20 and an anti-siphon plug 30 are arranged in the shell, and a diaphragm similar to a pilot valve is arranged at the water outlet end of the water inlet pipe, which is similar to the prior art and will not be elaborated in detail here. The anti-siphon plug is arranged on the outer periphery of the water inlet pipe, and the outer periphery of the water inlet pipe and the inner periphery of the anti-siphon plug can form a water passage 41, and the water flowing out of the water inlet pipe can be retained in the water passage. A plurality of ribs 31 are arranged in an annular manner on the outer periphery of the anti-siphon plug, and the ribs can be connected with the inner circumferential wall of the shell, and can make an interference fit or a clearance fit, and a water hole 32 is formed between two adjacent ribs and the shell, and a drain 42 can be formed between the outer periphery of the water inlet pipe and the inner periphery of the shell, and the water flow in the water passage can be discharged to the drain through the water hole.

[0023] Preferably, at least four ribs are arranged on the periphery of the anti-siphon plug. Referring to the attached figure of the specification, the ribs drawn in the figure are evenly and annularly distributed on the periphery of the anti-siphon plug. The number of ribs may be no less than 10, so that 10 water holes distributed in a ring shape can be formed, which can effectively disperse the impact of the water flow on the shell and reduce the generation of noise.

[0024] Furthermore, at least one annular flange 33 is provided on the outer peripheral wall of the anti-siphon plug, and the annular flange can fit tightly with the inner peripheral wall of the water inlet pipe. There can be two annular bosses distributed up and down, one of which is located at the upper end of the opening, and the two annular bosses are coaxially arranged. The shell, the anti-siphon plug and the water inlet pipe can also be coaxially arranged.

[0025] Furthermore, the anti-siphon plug is provided with a trumpet-shaped upper opening 34 at the upper end, and the shell is provided with a step surface 11. The lower end surface of the upper opening can be erected on the step surface, and the anti-siphon plug is ensured to have good coaxiality with the other two through the action of two annular bosses.

[0026] Preferably, the anti-siphon plug is provided with a constricted portion 35 at the lower end, and the smallest diameter of the constricted portion can fit tightly with the outer peripheral wall of the water inlet pipe, so that a sealed fit can be achieved, so that the water flow in the drainage channel will not flow back into the water passage. An opening 36 is provided on the side wall of the constricted portion, and the opening can connect the inner and outer sides of the anti-siphon plug, and the water passage can flow to the water hole through the opening. An annular boss is provided on the outer periphery of the anti-siphon plug located above the opening to ensure that the water flowing out of the opening flows downward to the water hole and does not flow back or upward. The anti-siphon plug between the opening and the water hole is provided with a water-guiding slope 37, so that the water can flow well to the water hole.

[0027] In order to prevent all the water entering the water passage from directly rushing towards the opening, a water baffle 21 is provided on the outer periphery of the water inlet pipe above the opening, which can not only mitigate the water flow but also avoid direct impact.

[0028] In a preferred embodiment of the present invention, a buffer opening 38 is further provided on the side wall of the anti-siphon plug between the two annular grooves. The buffer opening can play a good role in buffering and pressure relief, and can lead out part of the water flow.

[0029] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A water inlet valve with low noise function, comprising a housing of the water inlet valve, wherein a water inlet pipe and an anti-siphon plug are arranged in the housing, characterized in that: The anti-siphon plug is arranged on the outer periphery of the water inlet pipe, and the outer periphery of the water inlet pipe and the inner periphery of the anti-siphon plug can form a water passage. The outer periphery of the anti-siphon plug is annularly provided with a plurality of ribs, and the ribs can be connected with the inner circumferential wall of the shell, and a water hole is formed between two adjacent ribs and the shell. A drainage channel can be formed between the outer periphery of the water inlet pipe and the inner periphery of the shell, and the water flow in the water passage can be discharged to the drainage channel through the water hole.

2. A water inlet valve with low noise function according to claim 1, characterized in that: At least four ribs are arranged on the outer circumference of the anti-siphon plug.

3. A water inlet valve with low noise function according to any one of claims 1 or 2, characterized in that: At least one annular boss is arranged on the outer peripheral wall of the anti-siphon plug, and the annular boss can be closely matched with the inner peripheral wall of the water inlet pipe.

4. A water inlet valve with low noise function according to claim 3, characterized in that: The anti-siphon plug is provided with a trumpet-shaped upper opening at the upper end, and the shell is provided with a step surface, and the lower end surface of the upper opening can be mounted on the step surface.

5. The water inlet valve with low noise function according to claim 4, characterized in that: A necked portion is provided at the lower end of the anti-siphon plug, and the smallest diameter of the necked portion can fit tightly with the outer peripheral wall of the water inlet pipe. An opening is provided on the side wall of the necked portion, and the opening can connect the inner and outer sides of the anti-siphon plug. The water passage can flow to the water hole through the opening.

6. A water inlet valve with low noise function according to claim 5, characterized in that: An annular boss is arranged on the outer periphery of the anti-siphon plug located above the opening to ensure that the water flowing out of the opening flows downward toward the water passage hole.

7. A water inlet valve with low noise function according to claim 6, characterized in that: The anti-siphon plug between the opening and the water hole is provided with a water-guiding inclined surface.

8. The water inlet valve with low noise function according to claim 7, characterized in that: A water baffle is arranged on the outer periphery of the water inlet pipe above the opening.

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