BR-202024018059-U2 - Self-locking gate for drainage networks.

Abstract

Automatic device for controlling the flow of rainwater drainage networks in housing developments, condominiums, industries, and cities, consisting of a metal structure equipped with a "guillotine" or "slider" type gate that slides vertically along rails. The device operates automatically through gravitational forces that generate "seesaw" or "lever" type forces directed by fixing points on the device's base, which act as pivots. The fixing points are metal pins that allow the device to rotate, thus ensuring its operation. The device naturally remains open, allowing the flow of fluids from the drainage network. The automatic closing of the gate is ensured by the buoyancy force generated on the float when the water levels of water bodies such as rivers, lakes, and seas (water bodies that are the destinations of rainwater drainage networks) rise. The device's return to its normal open state is achieved through the gravitational action of the load generated by the self-weight of a cylindrical or conical metal float connected to the device via a truss-arm structure.

Inventors

• LUIZ CARLOS DOS SANTOS CÓRDOVA JÚNIOR

Assignees

• LUIZ CARLOS DOS SANTOS CORDOVA JUNIOR

Dates

Publication Date

20260317

Application Date

20240902

Claims (8)

1. 1. SELF-LOCKING GATE FOR DRAINAGE NETWORKS characterized by a gate system (1) connected by means of truss arms (2) to a floating structure (3), the entire system being fixed to a reinforced concrete base (4) by means of movable pins (5) made of steel, being a system that comprises a customized solution for controlling flood flows from water bodies, being installed next to stormwater drainage network outlets (7).
2. 2. SELF-LOCKING GATE FOR DRAINAGE NETWORKS characterized by a sliding gate (1) connected by means of lattice arms (2) to a floating system (3) activated by raising the water level when it exceeds a level that allows floating. The assembly rests on a base (4) fixed by means of movable pins (5).
3. 3. SELF-LOCKING GATE FOR DRAINAGE NETWORKS characterized by having its mobile structure built in structural steel (1), having its fixation by means of a base in reinforced concrete structure (5) observing the provisions of ABNT NBR 6118 standard - "Design of concrete structures - Procedure", its float (3) built in structural steel with the variation of being built in polymeric material.
4. 4. SELF-LOCKING GATE FOR DRAINAGE NETWORKS characterized as a customized solution for flood control situations is constructed in a metal structure (2) employing profiles and structural parts (3) that take into account in their dimensioning the drag magnitudes arising from the peculiarities of the floods of the water body in which it will be installed,
5. 5. SELF-LOCKING GATE FOR DRAINAGE NETWORKS characterized by having moving parts (1 and 5) that do not employ bearings or sliding devices and operate by means of gravitational action, has a guide for closing the gate (1) constructed in angle profile (6) that is fixed next to the outlet of the rainwater drainage network.
6. 6. SELF-LOCKING GATE FOR DRAINAGE NETWORKS, according to claim 1, characterized in that element 1 is a gate constructed of steel structured by means of stringers and crossbeams.
7. 7. SELF-LOCKING GATE FOR DRAINAGE NETWORKS, according to claim 2, characterized in that element 2 has a lattice geometry.
8. 8. SELF-LOCKING GATE FOR DRAINAGE NETWORKS, according to claim 5, characterized by the fact that element 5 has a circular shape with a hole for receiving a pin that connects element 2 to it, allowing rotation.

Description

Field of invention [001] Civil construction, urban infrastructure. Fundamentals of the invention [002] Gates and flow controllers are widely known, exist, and are applied. There are various models and types of gates that direct flows and have automated opening and closing mechanisms. The type of gate that most closely resembles the proposed invention is a "sluice gate". Gates are drainage control devices that interrupt or control the flow of a given fluid. They can be operated manually or automatically. The best example to illustrate what exists with the proposed invention are the gates of hydroelectric dams, drainage networks, and/or distribution and irrigation systems. [003] Stormwater drainage networks in housing developments, condominiums, and urban infrastructure (cities) are composed of pipes that, in most cases, operate through gravity, meaning they allow flow in the direction of the slope (inclination) of the conduits (pipe networks). The outlets of these networks, in which the conduits are inserted, are located near water bodies (rivers, lakes, and seas). These water bodies are naturally subject to rising water levels due to the accumulation of rainwater or tidal increases. In most cases, city drainage networks have their outlets near water bodies without any flow control devices; that is, when the levels and tides of the receiving water bodies rise, water flows back through the pipes, consequently creating a scenario conducive to flooding. A recent example of this problem is the flooding that occurred in the metropolitan region of Porto Alegre/RS in May 2024, when floodgates along the Guaíba River were closed, but water backed up through the city's existing stormwater drainage network, which had the same river as its outlet. The proposed device operates on the principle of gravity; in short, when the water body receiving drainage contributions rises above a certain reference level, it triggers the closure of the proposed floodgate system, thus preventing the backflow of water through the drainage network, allowing for more effective flood control. The proposed device does not use electricity, which means that in case of a power outage, it will not be inoperable, nor does it require the use of complex components. It is based on the sliding action of a gate operated by a floating element that, through leverage, interrupts a drainage conduit. Brief description of the drawings [004] The invention can be better understood through the following detailed description, in accordance with the figures that exemplify, but do not restrict, the model as attached, where: Figure 1 shows the front view of the SELF-BLOCKING GATE FOR DRAINAGE NETWORKS, showing the presence of the sliding gate, cylindrical float, fixing pins, reinforced concrete base and truss arms. Figure 2 illustrates the top view of the SELF-BLOCKING GATE FOR DRAINAGE NETWORKS, noting the cylindrical float, sliding gate and truss arms. Note the installation position of the same next to the outlet of a drainage network located on the banks of a water body (river, lake or sea). Figure 3 illustrates the perspective view of the SELF-BLOCKING GATE FOR DRAINAGE NETWORKS, noting all the items that compose it and positioning it at the outlet of a rainwater drainage network composed of a concrete pipe. Figure 4 illustrates the side view of the SELF-LOCKING GATE FOR DRAINAGE NETWORKS in relation to the cross-section of the rainwater drainage network in which it is installed. Note the open position of the sliding gate, a floating cylindrical gate in its normal position (open gate) resting on the truss arms and fixed by the cylindrical pins next to the concrete base. Description of the invention [005] This is a gate to control the flow of rainwater drainage networks for subdivisions, condominiums and city drainage systems. [006] It consists of a gate that slides along rails fixed to a reinforced concrete structure of the “culvert wing” type, which is installed at the outlet of drainage networks; [007] The gate has automatic actuation (closing and opening) by gravitational action. It does not depend on electrical energy or manual action and what makes it close or open is the water level of the receiving water body (rivers, lakes or seas). [008] The rise in the water level of the receiving water body of the rainwater drainage network causes a cylindrical or conical float to gain buoyancy (to be subjected to thrust) and thus forces the gate to close. [009] When subjected to the thrust action, the floating object that connects to the gate by means of a truss structure (arms) which has a pivot consisting of a pin fixed in a reinforced concrete base generates a seesaw or lever effect to close the gate. [0010] When the water level of the receiving body (rivers, lakes and seas) drops and the buoyancy forces on the floating structure cease, the gate opens automatically. [0011] The entire gate structure will be constructed of steel, and its attachment points will be on