Anti-backflow water outlet

Abstract

The utility model relates to an anti-backflow water outlet, which belongs to the technical field of water drainage devices and comprises a water drainage cover plate and a mounting outer edge, the water drainage cover plate is hinged with the mounting outer edge, and a flexible pressure-resistant floating plate capable of floating up and down is mounted on the water drainage cover plate; according to the anti-backflow drainage port, when the water level of a drainage pipeline below rises, the drainage hole of the drainage cover plate is blocked through the flexible pressure-resistant floating plate, so that water in the drainage pipeline is effectively prevented from flowing back and flowing back from the drainage port, and low-terrain traffic and factory production operation are affected; the device is simple in structure, convenient to use, sensitive and reliable.

Description

Technical Field

[0001] The utility model relates to an anti-backflow drain outlet, belonging to the technical field of drainage devices. Background Art

[0002] Whenever the rainy season comes, the drainage pipes in the low-lying areas often experience backflow due to the large water flow and untimely drainage, which hinders the passage of people and vehicles and also poses a major safety hazard to factory production operations in the low-lying areas. Utility Model Content

[0003] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is: to provide an anti-backflow drain outlet, which can effectively prevent the water in the drain outlet from flowing back when the water flow in the drainage pipeline is large and the drainage is not timely.

[0004] The anti-backflow drain outlet of the utility model comprises a drain cover plate and an installation outer edge. The drain cover plate is hinged to the installation outer edge, and a flexible pressure-resistant floating plate capable of floating up and down is installed on the drain cover plate.

[0005] The technical solution of the utility model is to provide a backflow prevention drain outlet. When the water level in the drainage pipe is low, the flexible pressure-resistant floating plate automatically falls to the bottom, and a gap exists between the flexible pressure-resistant floating plate and the drainage cover plate, so that rainwater on the upper part can be discharged normally through the drain outlet. When the water level in the drainage pipe below rises, the flexible pressure-resistant floating plate floats up and close to the drainage cover plate due to the buoyancy, thereby sealing the holes in the drainage cover plate and preventing water in the drainage pipe from flowing back from the drain outlet.

[0006] Preferably, the drainage cover plate is provided with a plurality of elongated drainage holes, and connecting plates are installed on both sides of the drainage cover plate; the connecting plate is provided with a limiting shaft, and the limiting shaft passes through the elongated drainage holes of the drainage cover plate; the flexible pressure-resistant floating plate is provided with a limiting hole matching the limiting shaft, and the connecting plate is movably connected to the flexible pressure-resistant floating plate through the limiting shaft.

[0007] Furthermore, a detachable shaft end baffle is provided at one end of the limiting shaft, and the flexible pressure-resistant floating plate is limited on the limiting shaft by the shaft end baffle to prevent the flexible pressure-resistant floating plate from falling.

[0008] Preferably, a C-shaped sealing strip is installed at the edge of the flexible pressure-resistant floating plate, and after the flexible pressure-resistant floating plate floats up and contacts the drainage cover plate, it is sealed by the C-shaped sealing strip.

[0009] Preferably, a flexible waterproof sealing strip is adhered to the outer edge of the drainage cover plate to seal the gap between the drainage cover plate and the installation outer edge; the drainage cover plate is also provided with a handle for easy opening and closing.

[0010] The four corners of the mounting outer edge are provided with fixing plates for fixing.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The anti-backflow drain outlet of the utility model can seal the drain hole of the drain cover plate through a flexible pressure-resistant floating plate when the water level in the drainage pipeline below rises, thereby effectively preventing water in the drainage pipeline from flowing back through the drain outlet and affecting traffic and factory production operations in low-lying areas. The utility model has a simple structure, is easy to use, and is sensitive and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is one of the structural schematic diagrams of the utility model;

[0014] Figure 2 This is the second structural diagram of the utility model;

[0015] Figure 3 It is a three-dimensional diagram of the drainage cover;

[0016] Figure 4 It is a three-dimensional diagram of the connecting plate.

[0017] In the figure: 1. Drain cover; 11. Handle; 12. Flexible waterproof sealing strip; 13. Long strip drainage hole; 2. Connecting plate; 21. Shaft end baffle; 22. Limiting shaft; 3. Mounting outer edge; 31. Fixed plate; 4. Flexible pressure-resistant floating plate; 41. C-shaped sealing strip. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with specific embodiments.

[0019] However, the description of the present invention is merely an embodiment of structural and even functional description, and the scope of rights of the present invention is not limited by the embodiments described in the text.

[0020] For example, multiple embodiments may have multiple changes and multiple forms, and it should be understood that the scope of rights of the present utility model includes equivalents that can realize the technical idea.

[0021] like Figures 1 to 4 As shown, this embodiment is implemented through the following technical scheme: it includes a drainage cover plate 1 and an installation outer edge 3, the drainage cover plate 1 is hinged to the installation outer edge 3, and a flexible pressure-resistant floating plate 4 that can float up and down is installed on the drainage cover plate 1. The flexible pressure-resistant floating plate 4 is a flexible material with a density less than that of water.

[0022] In this embodiment, the drainage cover plate 1 is provided with a plurality of elongated drainage holes 13, and connecting plates 2 are installed on both sides of the drainage cover plate 1; the connecting plate 2 is provided with a limiting shaft 22, and the limiting shaft 22 passes through the elongated drainage holes 13 of the drainage cover plate 1; the flexible pressure-resistant floating plate 4 is provided with a limiting hole matching the limiting shaft 22, and the connecting plate 2 is movably connected to the flexible pressure-resistant floating plate 4 through the limiting shaft 22; a detachable shaft end baffle 21 is provided at one end of the limiting shaft 22, and the flexible pressure-resistant floating plate 4 is limited on the limiting shaft 22 by the shaft end baffle 21 to prevent the flexible pressure-resistant floating plate 4 from falling.

[0023] The edge of the flexible pressure-resistant floating plate 4 is installed with a C-shaped sealing strip 41. After the flexible pressure-resistant floating plate 4 floats up and contacts the drainage cover plate 1, it is sealed by the C-shaped sealing strip 41. The outer edge of the drainage cover plate 1 is pasted with a flexible waterproof sealing strip 12, which is used to seal the gap between the drainage cover plate 1 and the installation outer edge 3. The drainage cover plate 1 is also provided with a handle 11 for easy opening and closing. The four corners of the installation outer edge 3 are provided with fixing plates 31 for fixing.

[0024] Of course, the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and any equivalent changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention shall fall within the scope of the patent coverage of the present invention.

Claims

1. A backflow prevention drain outlet, characterized in that: It comprises a drainage cover plate (1) and an installation outer edge (3), wherein the drainage cover plate (1) is hinged to the installation outer edge (3), and a flexible pressure-resistant floating plate (4) capable of floating up and down is installed on the drainage cover plate (1); The drainage cover plate (1) is provided with a plurality of elongated drainage holes (13), and connecting plates (2) are installed on both sides of the drainage cover plate (1); the connecting plate (2) is provided with a limiting shaft (22), and the limiting shaft (22) passes through the elongated drainage holes (13) of the drainage cover plate (1); a limiting hole matching the limiting shaft (22) is provided on the flexible pressure-resistant floating plate (4), and the connecting plate (2) is movably connected to the flexible pressure-resistant floating plate (4) through the limiting shaft (22).

2. The backflow prevention drain outlet according to claim 1, characterized in that: One end of the limiting shaft (22) is provided with a detachable shaft end stopper (21), and the flexible pressure-resistant floating plate (4) is limited on the limiting shaft (22) by the shaft end stopper (21).

3. The backflow prevention drain outlet according to claim 2, characterized in that: The edge of the flexible pressure-resistant floating plate (4) is provided with a C-shaped sealing strip (41).

4. The backflow prevention drain outlet according to claim 1, characterized in that: A flexible waterproof sealing strip (12) is pasted on the outer edge of the drainage cover plate (1) for sealing the gap between the drainage cover plate and the mounting outer edge; a handle (11) is also provided on the drainage cover plate (1) for easy opening and closing.

5. The backflow prevention drain outlet according to claim 1, characterized in that: The four corners of the mounting outer edge (3) are provided with fixing plates (31) for fixing.

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