Automatic flood control ventilation opening
By setting up an automatically rotating waterproofing component under the vents of underground buildings, the problem of water backflow during sudden heavy rainstorms is solved, and the automatic flood control effect is achieved without electricity and human monitoring is achieved, ensuring the safety of underground facilities.
Patent Information
- Application Number
- CN202310994895.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-09
- Publication Date
- 2025-02-18
AI Technical Summary
The vents of existing underground buildings are prone to water backflow during sudden heavy rains, resulting in damage to underground facilities.
An automatic flood control vent is designed, using a water barrier assembly set below the vent. The assembly automatically rotates under the action of flood buoyancy to achieve the vent closing or opening.
It realizes automatic flood control without electricity and human monitoring, ensuring the safety of underground facilities.
Smart Images
Figure CN119466517A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of underground flood control, and in particular to an automatic flood control vent. Background Art
[0002] For underground buildings such as air-raid shelters and underground garages, the air inlets and exhaust vents are usually separately set outdoors and are set as far as possible outside the collapse range of the ground buildings. The structure includes the enclosure structure and the vents set on the side of the enclosure structure. To facilitate production, construction and installation, the vents are mostly rectangular.
[0003] When a sudden rainstorm occurs, if the outdoor accumulated water is higher than the lower edge of the vent, a large amount of water will flow back through the vent into the underground building, causing great losses. Summary of the invention
[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide an automatic flood prevention vent that can play an automatic flood prevention role.
[0005] To solve the above technical problems, the technical solution provided by the present invention is: the automatic flood-proof vent includes a vent and a water retaining assembly rotatably arranged below the vent, and the water retaining assembly can automatically rotate under the action of the buoyancy of the flood to achieve the closing / opening of the vent.
[0006] Furthermore, the vent is a side vent, and the water retaining assembly rotates in a vertical plane.
[0007] Furthermore, the water retaining assembly includes a water retaining plate, which is rotatably arranged below the vent. After the water retaining plate automatically rotates to the extreme position under the action of the buoyancy of the flood, the outer edge of the vent of the vent fits with the corresponding position of the back water surface of the water retaining plate to achieve the closure of the vent.
[0008] Furthermore, the material of the water retaining plate is selected to satisfy the following requirement: the deadweight of the water retaining plate is less than the weight of the water discharged after the water retaining plate is completely submerged in water.
[0009] Furthermore, the water retaining plate is in a horizontal or nearly horizontal state when there is no buoyancy effect of flood.
[0010] Furthermore, a rotation assisting device is connected between the water baffle and the vent, and the rotation assisting device assists the water baffle to rotate toward the outer edge of the vent; when there is no buoyancy of flood, the water baffle is in a horizontal or nearly horizontal state.
[0011] Furthermore, the cross section of the vent is rectangular, or trapezoidal, or approximately rectangular, or approximately trapezoidal, and flexible sealing plates are respectively connected between the two sides of the water retaining plate and the left and right edges of the vent.
[0012] Furthermore, the flexible sealing plate is an acute-angle triangle, one side of which is fixedly connected to the inner side of the edge of the vent, and the other side of which is fixedly connected to the back-to-water surface of the water retaining plate.
[0013] Furthermore, the outer edge of the vent of the vent fits with the corresponding position of the back-water surface of the water retaining plate, and the angle between the fitting surface and the horizontal plane is less than 90°.
[0014] Furthermore, the bottom edge of the water baffle is rotatably connected to the bottom edge of the vent.
[0015] Furthermore, a flexible sealing member is connected between the bottom edge of the water baffle and the bottom edge of the vent.
[0016] Furthermore, the water baffle and the vent are each provided with a matching locking piece, and when the locking piece is locked, the outer edge of the vent of the vent can fit with the corresponding position of the back water surface of the water baffle, thereby achieving the closure of the vent.
[0017] Compared with the existing technology, this solution has the following significant advantages: This solution uses a water retaining component that automatically rotates under the action of flood buoyancy to achieve the closing / opening of the vents, effectively achieving the effect of automatic flood prevention, without the need for electricity or human monitoring, and ensuring the safety of underground facilities. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.
[0019] In the attached picture: Figure 1 It is a schematic diagram of the structure of the present invention in an embodiment; Figure 2 is a structural schematic diagram of another rotation power-assisting device; Figure 3 This is a schematic diagram of the structure after the water retaining assembly closes the vent; Figure 4 It is a structural schematic diagram of a combination diagram of multiple automatic flood control vent modules; In the figure: 1-ventilation port, 2-water retaining assembly, 3-water retaining plate, 4-flexible sealing plate, 5-flexible sealing element, 6-rotation assisting device. DETAILED DESCRIPTION
[0020] The preferred examples of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred examples described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0021] like Figure 1As shown, the automatic flood-proof vent of the present invention comprises a vent 1 and a water retaining assembly 2 rotatably disposed below the vent 1 . The water retaining assembly 2 can automatically rotate under the action of flood buoyancy to achieve closing / opening of the vent 1 .
[0022] Specifically, the vent 1 is a side vent, and its cross-sectional shape is rectangular, trapezoidal, approximately rectangular, or approximately trapezoidal. The water retaining component 2 is a water retaining plate 3, and a flexible sealing plate 4 is connected between the two sides of the water retaining plate 3 and the left and right edges of the vent 1. The flexible sealing plate 4 is an acute-angled triangle, one side of which is fixedly connected to the inner side of the edge of the vent 1, and the other side is fixedly connected to the back water surface of the water retaining plate 3. In this way, the flexible sealing plate 4 can be used to close the vent 1 from the left and right sides, thereby preventing water from falling into the vent 1 from both sides, thereby further improving the flood prevention performance.
[0023] Under the action of the pulling force of the flexible sealing plate 4, the water retaining plate 3 is in a horizontal or nearly horizontal state when there is no buoyancy of the flood, and it can rotate in a vertical plane. When the water retaining plate 3 automatically rotates to the limit under the action of the buoyancy of the flood, the outer edge of the vent of the vent 1 fits with the corresponding position of the back surface of the water retaining plate 3, and the vent 1 can be closed. The area where the outer edge of the vent of the vent 1 fits with the corresponding position of the back surface of the water retaining plate 3 can be provided with a sealing strip, and the sealing effect is better.
[0024] The material selection of the water baffle 3 needs to satisfy the requirement that its own weight is less than the weight of the water after it is completely submerged in water, so as to realize automatic rotation.
[0025] When there is no flood buoyancy, the water retaining plate 3 is in a horizontal or nearly horizontal state. As water accumulates on the ground, the water retaining plate 3 is gradually affected by the flood buoyancy and rotates relative to the vent 1. Finally, its back-to-water surface is completely in contact with the outer edge of the vent of the vent 1.
[0026] Furthermore, a rotation assisting device 6 is connected between the water baffle 3 and the vent 1, which is used to assist the water baffle 3 to rotate toward the outer edge of the vent 1. When the outer edge of the vent 1 fits with the corresponding position of the back surface of the water baffle 3, the rotation assisting device 6 can increase the fit force and achieve a better sealing effect. The rotation assisting device 6 can be a spring connected between the two, or a torsion spring arranged on the water baffle 3 or the vent 1.
[0027] like Figure 2 As shown, the rotation assist device 6 can also be a counterweight and a pull rope, the counterweight hanging on the back of the vent 1, one end of the pull rope is fixedly connected to the counterweight, and the other end is fixedly connected to the water baffle 3 through the top of the vent 1.
[0028] from Figure 1It can be seen that the angle α between the edge of the vent 1 and the horizontal plane outside the vent 1 is less than 90°. Therefore, the angular rotation range of the water retaining plate 3 in the actual working process is also less than 90°. The α angle is generally between 30° and 60°. At this time, the pressure between the outer edge of the vent of the vent 1 and the corresponding position of the back water surface of the water retaining plate 3 is relatively large, and the sealing effect is better.
[0029] The bottom edge of the water baffle 3 and the bottom edge of the vent 1 are rotatably connected via a flexible seal 5. The flexible seal 5 can not only allow the water baffle 3 to rotate relative to the vent 1, but also ensure the sealing of the connection between the water baffle 3 and the vent 1. At this time, the outer edge of the air outlet of the vent 1 and the corresponding position of the back water surface of the water baffle 3 are flexibly fitted, and the fitting and sealing effect is optimal.
[0030] The water baffle 3 and the vent 1 are each provided with a locking piece that can be matched and locked, so that the staff can fit the outer edge of the vent 1 with the corresponding position of the water baffle 3 on the back surface of the water, and fix the water baffle 3 in the state of closing the vent 1, thereby realizing manual closure, or manually fixing it after it is automatically closed by the flood, so as to improve the sealing effect. Figure 3 The figure shows a schematic diagram of the structure after the water retaining assembly closes the vent. The locking member may be a locking pin, a male and female lock, or any other movable and detachable locking structure.
[0031] like Figure 4 As shown, a plurality of automatic flood-proof vent modules are spliced together to realize large ventilation volume and the overall thickness can be controlled not to be too large.
[0032] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. An automatic flood control vent, characterized in that: It comprises a vent (1), and a water retaining assembly (2) rotatably arranged below the vent (1); the water retaining assembly (2) can automatically rotate under the action of flood buoyancy to achieve closing / opening of the vent (1).
2. The automatic flood vent according to claim 1, characterized in that: The vent (1) is a side vent, and the water retaining assembly (2) rotates in a vertical plane.
3. The automatic flood vent according to claim 2, characterized in that: The water retaining assembly (2) comprises a water retaining plate (3), wherein the water retaining plate (3) is rotatably arranged below the vent (1). When the water retaining plate (3) automatically rotates to an extreme position under the action of the buoyancy of the flood, the outer edge of the vent of the vent (1) fits with a corresponding position of the back surface of the water retaining plate (3), thereby achieving closure of the vent (1).
4. The automatic flood control vent according to claim 3, characterized in that: The material of the water baffle (3) is selected to satisfy the requirement that the deadweight of the water baffle (3) is less than the weight of the water after the water baffle (3) is completely submerged in water and then drained.
5. The automatic flood control vent according to claim 3, characterized in that: The water retaining plate (3) is in a horizontal or nearly horizontal state when there is no buoyancy effect of flood water.
6. The automatic flood control vent according to claim 3, characterized in that: A rotation assisting device (6) is connected between the water baffle (3) and the vent (1), and the rotation assisting device (6) assists the water baffle (3) to rotate toward the outer edge of the vent of the vent (1); the water baffle (3) is in a horizontal or nearly horizontal state when there is no buoyancy of flood water.
7. The automatic flood control vent according to any one of claims 3 to 6, characterized in that: The cross section of the ventilation opening (1) is rectangular, or trapezoidal, or approximately rectangular, or approximately trapezoidal, and flexible sealing plates (4) are connected to the same side between the left and right sides of the water retaining plate (3) and the left and right edges of the ventilation opening (1).
8. The automatic flood control vent according to claim 7, characterized in that: The flexible sealing plate (4) is an acute-angled triangle, one side of which is fixedly connected to the inner side of the edge of the vent (1), and the other side of which is fixedly connected to the back-of-water surface of the water retaining plate (3).
9. The automatic flood prevention vent according to claim 3, characterized in that: The outer edge of the vent of the vent (1) fits in with the corresponding position of the back-water surface of the water retaining plate (3), and the angle between the fitting surface and the horizontal plane is less than 90°.
10. The automatic flood control vent according to any one of claims 3 to 6, characterized in that: The bottom edge of the water baffle (3) is rotatably connected to the bottom edge of the vent (1).
11. The automatic flood prevention vent according to claim 10, characterized in that: A flexible sealing member (5) is connected between the bottom edge of the water baffle (3) and the bottom edge of the vent (1).
12. The automatic flood control vent according to any one of claim 3, characterized in that: The water baffle (3) and the vent (1) are each provided with a locking member that can be matched and locked. After the locking member is locked, the outer edge of the vent of the vent (1) can be fitted with a corresponding position on the back surface of the water baffle (3), thereby achieving the closure of the vent (1).