Double-wing structure for one-way valve and one-way valve

Abstract

The present invention proposes a double-wing structure for a one-way valve, including a valve flap and a valve wing, wherein the shape of the valve flap matches the shape of the inside of the one-way valve, the valve flap and the valve wing are both planar plate structures, and the upper edge of the valve flap is flush with the upper edge of the valve wing, and two slots located on the same horizontal line are provided on the water receiving surface of the valve flap, and the lower edge of the valve wing is installed in the slot through a small rotating shaft, and an inclined block for limiting the rotation angle of the valve wing is also provided on the slot, and the angle between the inclined block and the valve flap is 80°, and a large rotating shaft is provided on the lower edge of the valve flap. The present invention has a simple structure, can reduce the resistance to water flow, and reduce weight, thereby increasing the service life of the one-way valve, reducing costs, making the water pump work more efficiently, and the pipeline system more stable.

Description

Technical Field

[0001] The invention belongs to the technical field of fluid control, in particular to a double-wing structure for a one-way valve and a one-way valve. Background Art

[0002] A one-way valve is a device that allows fluid to flow only along the water inlet, but the medium at the water outlet cannot flow back, thus protecting the pump motor. Figure 1 As shown, the interior is just composed of a valve disc and a rotating shaft. However, when the water speed or water flow rate of this one-way valve changes, the entire working state of the valve disc is tilted. It swings continuously with its own gravity and the change of water flow, causing resistance to the water flow, thus affecting the efficiency of the water pump. At the same time, the swinging working state causes continuous wear on the rotating shaft between the valve disc and the valve body, thereby reducing the service life. Combining these problems, the one-way valve is not only not energy-saving under long-term operation, affecting the stability of the entire system, but also increasing the equipment cost and labor cost of later maintenance or replacement.

[0003] To address these problems, it is necessary to change the working state of the valve disc. When the valve disc is opened vertically, it will not be affected by its own gravity, reducing the impact on the water flow. Summary of the invention

[0004] The technical problem solved by the present invention is to provide a double-wing structure for a one-way valve and a corresponding one-way valve, which adopts a valve wing and a valve disc to form a double-wing structure, reduce resistance, increase the service life of the one-way valve, and make the entire system more stable and more energy-efficient.

[0005] The technical solution to achieve the purpose of the present invention is:

[0006] A double-wing structure for a one-way valve comprises a valve flap and a valve wing, wherein the shape of the valve flap matches the shape of the inside of the one-way valve, the valve flap and the valve wing are both planar plate structures, and the upper edge of the valve flap is flush with the upper edge of the valve wing; two slots located on the same horizontal line are provided on the water receiving surface of the valve flap, the lower edge of the valve wing is installed in the slot via a small rotating shaft, and the slot is also provided with an inclined block for limiting the rotation angle of the valve wing, and the angle between the inclined block and the valve flap is 80°; a large rotating shaft is provided at the lower edge of the valve flap.

[0007] Furthermore, in the double-wing structure for a one-way valve of the present invention, the area of ​​the valve wing is less than 1 / 4 of the area of ​​the valve disc.

[0008] Furthermore, in the double-wing structure for a one-way valve of the present invention, the horizontal line where the two grooves are located is located above the center of the valve disc.

[0009] A one-way valve for a vertical pipeline comprises a valve body and any of the above-mentioned double-wing structures for a one-way valve, the valve body being an internally through-going cavity structure, a water inlet being provided at the bottom of the valve body, a water outlet being provided at the top of the valve body, a limiting inclined plane being provided on one side of the top of the valve body, a vertical limiting block being provided on the other side of the top of the valve body, a limiting groove with a V-shaped cross-section being provided on one side of the bottom of the valve body, the limiting block and the lowest point of the limiting groove being opposite to each other up and down, the distance between the lowest point of the limiting block and the lowest point of the limiting groove being less than the length of the valve flap of the double-wing structure; the lower edge of the valve flap of the double-wing structure is installed in the limiting groove through a large rotating shaft, and the water receiving surface of the valve flap 2 faces downward, and the length of the valve flap of the double-wing structure is greater than the distance from the lowest point of the limiting groove to the limiting inclined plane.

[0010] Compared with the prior art, the present invention adopts the above technical solution and has the following technical effects:

[0011] 1. The double-wing structure for the one-way valve of the present invention is simple in structure and can reduce resistance and weight, thereby increasing the service life of the one-way valve and reducing costs.

[0012] 2. The one-way valve for vertical pipelines of the present invention can reduce the resistance to water flow, making the water pump work more efficiently and the pipeline system more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a one-way valve in the prior art.

[0014] Figure 2 It is a schematic diagram of a double-wing structure for a one-way valve of the present invention.

[0015] Figure 3 It is a schematic diagram of a one-way valve for a vertical pipeline according to the present invention.

[0016] Figure 4 It is a working principle diagram of the one-way valve for vertical pipelines of the present invention.

[0017] Meaning of the accompanying numbers: 1. valve wing; 2. valve disc; 3. water outlet; 4. water inlet; 5. small rotating shaft; 6. large rotating shaft; 7. valve body; 8. slot; 9. inclined stopper; 10. limiting inclined surface; 11. limiting stopper; 12. limiting groove. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0019] A double-wing structure for a one-way valve, such as Figure 2 As shown, it includes a valve flap 2 and a valve wing 1. The shape of the valve flap 2 matches the shape of the inside of the one-way valve. The valve flap 2 and the valve wing 1 are both flat plate structures. The area of ​​the valve wing 1 is less than 1 / 4 of the area of ​​the valve flap 2, and the upper edge of the valve flap 2 is flush with the upper edge of the valve wing 1. Two slots 8 located on the same horizontal line are provided on the water receiving surface of the valve flap 2. The horizontal line where the two slots 8 are located is located above the center of the valve flap 2. The lower edge of the valve wing 1 is installed in the slot 8 through a small rotating shaft 5. The slot 8 is also provided with an oblique stopper 9 for limiting the rotation angle of the valve wing 1. The angle between the oblique stopper 9 and the valve flap 2 is 80°. A large rotating shaft 6 is provided on the lower edge of the valve flap 2.

[0020] A one-way valve for vertical piping, such as Figure 3 As shown, it includes a valve body 7 and the above-mentioned double-wing structure for a one-way valve, the valve body 7 is an internally through-going cavity structure, a water inlet 4 is provided at the bottom of the valve body 7, a water outlet 3 is provided at the top of the valve body 7, a limiting slope 10 is provided on one side of the top of the valve body 7, a vertical limiting block 11 is provided on the other side of the top of the valve body 7, a limiting groove 12 with a V-shaped cross-section is provided on one side of the bottom of the valve body 7, and the limiting block 11 and the lowest point of the limiting groove 12 are opposite to each other up and down, and the distance between the lowest point of the limiting block 11 and the lowest point of the limiting groove 12 is less than the length of the valve flap 2 of the double-wing structure; the lower edge of the valve flap 2 of the double-wing structure is installed in the limiting groove 12 through the large rotating shaft 6, and the water receiving surface of the valve flap 2 faces downward, and the length of the valve flap 2 of the double-wing structure is greater than the distance from the lowest point of the limiting groove 12 to the limiting slope 10.

[0021] When the water pump discharges water, it impacts the valve disc 2, and the valve wing 1 moves as the valve disc 2 opens. When the valve disc 2 opens to a vertical state, if the water flow velocity or flow rate changes, the valve wing 1 swings continuously, and the swing amplitude is (0°, 80°]. The water receiving area of ​​the valve wing 1 is less than 25% of the water receiving area of ​​the valve disc 2, so the resistance to the water flow is reduced by (70%, 90%).

[0022] When the water is empty, the valve flap 2 is opened to a vertical state. Due to the unique shape of the valve wing 1, it cannot remain in a vertical state. Due to the influence of its own weight, the maximum opening angle between the valve wing 1 and the valve flap 2 is 80°. As the valve wing 1 falls back, one side of the valve flap 2 is subjected to force to close the channel.

[0023] like Figure 4As shown (from left to right), the double-wing structure of the present invention is used inside the one-way valve installed on the vertical pipeline. When the ingenious double-wing structure encounters water flow, the valve flap 2 is opened by the water impact. When the valve flap 2 is opened to a vertical state, the valve wing 1 continues to swing with the change of the water flow velocity or flow rate, but the valve flap 2 is in a vertical static state, and the double wings reduce the resistance inside the valve to a minimum. When the water flow refluxes, the angle between the valve wing 1 and the valve flap 2 is 80°, and it is in a self-falling state. With the impact of the water reflux, the valve wing 1 drives the valve flap 2 to close the channel inside the valve, thereby protecting the water pump, making the pipeline system more stable and the system more efficient.

[0024] Compared with the technical principle, the opening angle of the conventional one-way valve disc is still affected by its own weight. The real-time opening angle is constantly changed due to the change of the water flow velocity or flow rate. Due to the continuous swing of the valve disc during operation, various resistances are caused to the water flow, forcing the operation of the entire water pump to be affected, and making the working state of the entire pipeline system unstable. The present invention proposes a double-wing low-resistance technology based on a one-way valve, which can be applied to the one-way valve, changing the valve body structure of the one-way valve, and the valve disc can maintain a vertical starting state. The vertical state reduces the influence of the self-weight on the valve disc. At the same time, the valve wing is installed on the valve disc, which has a double-wing structure. The valve wing can swing sensitively, and the water receiving area is less than 25% of the valve disc, which reduces the water flow resistance and achieves a low resistance effect, making the water pump work more efficiently and the pipeline system more stable.

[0025] In terms of structure, when the conventional one-way valve flap is working, the flap will continue to swing. After a long time, the rotating shaft of the moving part connecting the flap and the valve body will work frequently, which is prone to wear or damage, increasing equipment costs and labor costs. The present invention relates to a double-wing structure, in which the flap can be in a vertical state when working. Since it is not affected by its own weight, the large rotating shaft connected to the valve body is stable and is not easy to wear and damage compared to conventional ones. At the same time, due to the characteristics of the technical principle of the present invention, the one-way valve body of the present invention can be designed to be more compact under the same specifications, reducing weight, thereby reducing construction costs. Comprehensive comparison shows that the present invention can reduce various costs while solving the resistance problem.

[0026] The above descriptions are only some embodiments of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principles of the present invention. These improvements should be regarded as within the protection scope of the present invention.

Claims

1. A double-wing structure for a one-way valve, characterized in that: The valve disc (2) comprises a valve flap (2) and a valve wing (1), wherein the shape of the valve flap (2) matches the shape of the inside of the one-way valve, the valve flap (2) and the valve wing (1) are both planar plate structures, and the upper edge of the valve flap (2) is flush with the upper edge of the valve wing (1), and the area of ​​the valve wing (1) is less than 1 / 4 of the area of ​​the valve flap (2); two grooves (8) located on the same horizontal line are provided on the water receiving surface of the valve flap (2), and the horizontal line where the two grooves (8) are located is located above the center of the valve flap (2); the lower edge of the valve wing (1) is installed in the groove (8) via a small rotating shaft (5), and the groove (8) is also provided with an inclined stopper (9) for limiting the rotation angle of the valve wing (1), and the angle between the inclined stopper (9) and the valve disc (2) is 80 degrees; and a large rotating shaft (6) is provided on the lower edge of the valve flap (2).

2. A one-way valve for a vertical pipeline, characterized in that: The invention comprises a valve body (7) and a double-wing structure for a one-way valve as claimed in claim 1, wherein the valve body (7) is a cavity structure with a continuous interior, a water inlet (4) is provided at the bottom of the valve body (7), a water outlet (3) is provided at the top of the valve body (7), a limiting inclined surface (10) is provided on one side of the top of the valve body (7), a vertical limiting stopper (11) is provided on the other side of the top of the valve body (7), a limiting groove (12) with a V-shaped cross section is provided on one side of the bottom of the valve body (7), and the limiting stopper (11) is provided on one side of the bottom of the valve body (7). (11) is vertically opposite to the lowest point of the limiting groove (12), and the distance between the lowest point of the limiting block (11) and the lowest point of the limiting groove (12) is less than the length of the valve flap (2) of the double-wing structure; the lower edge of the valve flap (2) of the double-wing structure is installed in the limiting groove (12) through the large rotating shaft (6), and the water receiving surface of the valve flap (2) faces downward, and the length of the valve flap (2) of the double-wing structure is greater than the distance from the lowest point of the limiting groove (12) to the limiting inclined surface (10).

Images