Novel anti-siphon one-way valve

Abstract

The utility model relates to the technical field of one-way valves, in particular to a novel anti-siphon one-way valve, which comprises a valve body and an anti-siphon ring, the valve body is provided with a water inlet hole, a water passing channel and a water outlet hole which are communicated with one another, the anti-siphon ring is movably arranged in the water passing channel and has elasticity, and the anti-siphon ring is arranged in the water passing channel. The anti-siphon ring abuts against the inner side of the water inlet hole under the action of elasticity of the anti-siphon ring and blocks the water inlet hole, when water flow enters from the water inlet hole, the water flow can push the anti-siphon ring to move downwards, the anti-siphon ring can contract inwards under the pressure of the water flow, and a channel is formed between the outer edge of the anti-siphon ring and the inner side wall of the water passing channel. When water feeding is stopped, the anti-siphon ring recovers deformation due to the influence of the elasticity of the anti-siphon ring and moves upwards due to the pressure of reverse flowing water, the anti-siphon ring is attached to the water outlet hole, a sealing state is formed, and the one-way valve is simple in structure and good in sealing performance.

Description

Technical Field

[0001] The utility model relates to the technical field of one-way valves, in particular to a novel anti-siphon one-way valve. Background Art

[0002] Generally, an anti-siphon water-saving valve is provided with a spring and a sealing structure in the shell. Under the action of the spring, the sealing structure is used to ensure the sealing inside the inner shell. When water flows through, the water pressure impacts the sealing structure, the spring is compressed, and the water flows.

[0003] For example, the patent with publication number CN204459311 U discloses an anti-siphon one-way valve, including a valve seat, a valve core, a return spring and a Y-ring; the valve seat has an inlet and an outlet, and a valve cavity is formed in the valve seat, which is connected to the inlet and the outlet respectively; the valve core can be slidably installed in the valve cavity, and the Y-ring is installed on the valve core and fits with the side wall of the valve cavity. The cross-section of the Y-ring is Y-shaped, and a return spring is installed on the valve core. By adopting the design of the Y-ring and the return spring, the valve core can be slidably installed in the valve cavity, and smooth flow and anti-siphonage can be achieved under the action of liquid pressure.

[0004] The problems with the above technology are: the spring plus the sealing structure are relatively complex and inconvenient to install. When the spring is immersed in water for a long time, it will become fatigued or fail. In addition, it will be corroded by scale in the water, causing the spring to break, affecting the use of the entire anti-siphon valve.

[0005] Therefore, a novel anti-siphon one-way valve is proposed to solve the above technical problems. Utility Model Content

[0006] In order to solve the above technical problems, the purpose of the present utility model is to provide a new anti-siphon one-way valve with a simple structure and good sealing performance.

[0007] The technical solution adopted by the utility model to solve the problem is: a new type of anti-siphon one-way valve, which also includes an anti-siphon ring. The cross-section of the anti-siphon ring is arc-shaped. The anti-siphon ring is movably arranged in the water passage. The anti-siphon ring is elastic. Under the action of its own elasticity, the outer wall of the anti-siphon ring abuts against the inner wall of the valve body and blocks the communication between the water inlet and the water outlet.

[0008] As a further improvement of the above technical solution, it also includes a mounting rod, the anti-siphon ring is fixedly connected to the mounting rod, a through hole is provided on the valve body, the through hole is located next to the water inlet hole, and the mounting rod is dynamically sealed and connected to the through hole.

[0009] As a further improvement of the above technical solution, an annular groove is provided at the lower portion of the mounting rod, a mounting hole is provided at the middle portion of the anti-siphon ring, and the anti-siphon ring is sleeved on the annular groove through the mounting hole.

[0010] As a further improvement of the above technical solution, a claw is provided on the top of the mounting rod, and the claw is located outside the through hole. When the mounting rod moves to the bottom, the claw abuts against the top edge of the through hole.

[0011] As a further improvement of the above technical solution, the valve body includes an upper shell and a lower shell, the upper shell is fixedly arranged on the top of the lower shell, a water channel is formed between the upper shell and the lower shell, the water inlet hole and the through hole are both arranged on the upper shell, and the water outlet hole is arranged on the lower shell.

[0012] As a further improvement of the above technical solution, the cross-sections of the upper shell, the anti-siphon ring and the lower shell are all arc-shaped.

[0013] As a further improvement of the above technical solution, it also includes a mounting ring, a mounting groove is provided on the inner side of the mounting ring, a first boss extends outward from the bottom edge of the upper shell, and a second boss extends outward from the top edge of the lower shell, the first boss abuts against the top of the second boss, and the first boss and the second boss are both clamped in the mounting groove.

[0014] The beneficial effects of the present invention are as follows: when water flows into the water inlet, the water flow pushes the anti-siphon ring to move downward, and under the pressure of the water flow, the anti-siphon ring will shrink inward so that a channel is formed between the outer edge of the anti-siphon ring and the inner wall of the water passage, so that the water can flow to the water outlet; when the water inlet stops, the anti-siphon ring recovers its deformation due to its own elasticity and the pressure of the backflow water and moves upward, so that the anti-siphon ring fits the water outlet and forms a sealed state. The one-way valve has a simple structure and good sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further explained below with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a structural diagram of the one-way valve of the utility model;

[0017] Figure 2 This is an exploded view of the one-way valve of the utility model;

[0018] Figure 3 This is a cross-sectional view of the one-way valve of the utility model in the water-stop state;

[0019] Figure 4 This is a cross-sectional view of the one-way valve of the utility model in the water-flowing state.

[0020] In the figure: 1-valve body, 11-water inlet, 12-water passage, 13-water outlet, 14-through hole, 15-upper shell, 16-lower shell, 17-first boss, 18-second boss, 2-anti-siphon ring, 21-mounting hole, 3-mounting rod, 31-annular groove, 32-claw, 4-mounting ring, 41-mounting groove. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0023] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] Reference Figures 1 to 4 A novel anti-siphon one-way valve includes a valve body 1, which is provided with a water inlet hole 11, a water passage 12, and a water outlet hole 13 that are interconnected. The valve body 1 also includes an anti-siphon ring 2. The cross-section of the anti-siphon ring 2 is arc-shaped. The anti-siphon ring 2 is movably arranged in the water passage 12. The anti-siphon ring 2 is elastic. Under the action of its own elasticity, the outer wall of the anti-siphon ring 2 abuts against the inner wall of the valve body 1 and blocks the communication between the water inlet hole 11 and the water outlet hole 13.

[0026] When water flows in from the water inlet 11, the water flow will push the anti-siphon ring 2 to move downward. Under the pressure of the water flow, the anti-siphon ring 2 will shrink inward so that a channel is formed between the outer edge of the anti-siphon ring 2 and the inner wall of the water channel 12, so that the water can flow to the water outlet 13. When the water flow stops, the anti-siphon ring 2 recovers its deformation due to its own elasticity and the pressure of the backflow water and moves upward, so that the anti-siphon ring 2 fits the water outlet 13 and forms a sealed state. The one-way valve has a simple structure and good sealing performance.

[0027] In a preferred embodiment, a mounting rod 3 is further included, the anti-siphon ring 2 is fixedly connected to the mounting rod 3 , a through hole 14 is provided on the valve body 1 , the through hole 14 is located next to the water inlet hole 11 , and the mounting rod 3 is dynamically sealed and connected to the through hole 14 .

[0028] In a preferred embodiment, an annular groove 31 is provided at the lower portion of the mounting rod 3 , and a mounting hole 21 is provided at the middle portion of the anti-siphon ring 2 . The anti-siphon ring 2 is sleeved on the annular groove 31 through the mounting hole 21 .

[0029] In a preferred embodiment, in order to prevent the mounting rod 3 from escaping from the through hole 14 , a claw 32 is provided on the top of the mounting rod 3 . The claw 32 is located on the outside of the through hole 14 . When the mounting rod 3 moves to the bottom, the claw 32 abuts against the top edge of the through hole 14 .

[0030] In a preferred embodiment, the valve body 1 includes an upper shell 15 and a lower shell 16, the upper shell 15 is fixedly arranged on the top of the lower shell 16, a water passage 12 is formed between the upper shell 15 and the lower shell 16, the water inlet 11 and the through hole 14 are both arranged on the upper shell 15, and the water outlet 13 is arranged on the lower shell 16.

[0031] In a preferred embodiment, the cross-sections of the upper shell 15 , the anti-siphon ring 2 and the lower shell 16 are all arc-shaped.

[0032] In a preferred embodiment, in order to facilitate the installation of the upper shell 15 and the lower shell 16, a mounting ring 4 is also included, and a mounting groove 41 is provided on the inner side of the mounting ring 4. A first boss 17 extends outward from the bottom edge of the upper shell 15, and a second boss 18 extends outward from the top edge of the lower shell 16. The first boss 17 abuts against the top of the second boss 18, and the first boss 17 and the second boss 18 are both clamped in the mounting groove 41.

[0033] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A novel anti-siphon one-way valve, comprising a valve body (1), wherein the valve body (1) is provided with a water inlet hole (11), a water passage (12) and a water outlet hole (13) which are interconnected, and wherein: The valve body further comprises an anti-siphon ring (2), the cross section of the anti-siphon ring (2) being arc-shaped, the anti-siphon ring (2) being movably arranged in the water passage (12), the anti-siphon ring (2) being elastic, and the outer wall of the anti-siphon ring (2) being pressed against the inner wall of the valve body (1) under the action of its own elasticity and blocking the communication between the water inlet hole (11) and the water outlet hole (13).

2. A novel anti-siphon one-way valve according to claim 1, characterized in that: It also includes a mounting rod (3), the anti-siphon ring (2) is fixedly connected to the mounting rod (3), a through hole (14) is provided on the valve body (1), the through hole (14) is located beside the water inlet hole (11), and the mounting rod (3) is dynamically sealed and connected to the through hole (14).

3. A novel anti-siphon one-way valve according to claim 2, characterized in that: The lower portion of the mounting rod (3) is provided with an annular groove (31), the middle portion of the anti-siphon ring (2) is provided with a mounting hole (21), and the anti-siphon ring (2) is sleeved on the annular groove (31) through the mounting hole (21).

4. A novel anti-siphon one-way valve according to claim 2, characterized in that: A claw (32) is provided at the top of the mounting rod (3), and the claw (32) is located outside the through hole (14). When the mounting rod (3) moves to the bottom, the claw (32) abuts against the top edge of the through hole (14).

5. A novel anti-siphon one-way valve according to claim 2, characterized in that: The valve body (1) comprises an upper shell (15) and a lower shell (16); the upper shell (15) is fixedly arranged on the top of the lower shell (16); a water passage (12) is formed between the upper shell (15) and the lower shell (16); the water inlet (11) and the through hole (14) are both arranged on the upper shell (15); and the water outlet (13) is arranged on the lower shell (16).

6. A novel anti-siphon one-way valve according to claim 5, characterized in that: The cross sections of the upper shell (15) and the lower shell (16) are both arc-shaped.

7. A novel anti-siphon one-way valve according to claim 5, characterized in that: The invention also includes a mounting ring (4), the inner side of which is provided with a mounting groove (41), a first boss (17) extending outward from the bottom edge of the upper shell (15), a second boss (18) extending outward from the top edge of the lower shell (16), the first boss (17) abutting against the top of the second boss (18), and the first boss (17) and the second boss (18) both being snapped into the mounting groove (41).

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