Hydraulic adjustment-based water conservancy flap gate opening and closing device

Abstract

This utility model discloses a hydraulically adjustable hydraulic flap gate opening and closing device, relating to the field of flap gate technology. It includes a base, with a flap hinged above the base for blocking water. An auxiliary mechanism is provided between the lower surface of the flap and the upper surface of the base. The auxiliary mechanism provides auxiliary support for the flap by rotating two sets of rotating rods. In this hydraulically adjustable hydraulic flap gate opening and closing device, the hydraulic rods adopt a mirror-symmetrical layout, configured symmetrically along two axes with the geometric center of the flap as the reference, forming a two-dimensional bidirectional support system. The water impact load is axially transmitted to the rigid frame of the reinforcing plate through the hydraulic rods, effectively avoiding the structural instability risk caused by single-point support. This not only ensures the flap maintains planar stiffness during opening and closing but also achieves real-time balanced distribution of dynamic loads through the synchronous control mechanism of the hydraulic system, significantly improving the overall structure's anti-overturning ability and operational reliability.

Description

Technical Field

[0001] This utility model relates to the field of flap gate technology, specifically a hydraulic flap gate opening and closing device based on hydraulic adjustment. Background Technology

[0002] The hydraulic flap gate is an intelligent water conservancy facility integrating hydraulic drive technology and hydraulic self-control principles. Its core function is to precisely control the opening and closing of the gate through a hydraulic system to achieve multiple objectives, including dynamic water level regulation, flood discharge and flood control, ecological water replenishment, and landscape creation. This device overcomes the limitations of traditional flap gates that rely on hydraulic self-control, achieving "opening and closing at any water level" and "remote automated operation" through a hydraulic system, significantly improving the flexibility and safety of water conservancy projects.

[0003] The prior art (publication number CN222666723U, publication date 2025-03-25) discloses a flap gate support device, comprising a base shaft, a gate panel, support rods, hydraulic cylinders, and a dam body. The gate panel has four slide rails at its front end, each with four supporting arc-shaped grooves, and the four supporting grooves smoothly transition between each other. The gate panel, support rods, and hydraulic cylinders are all mounted on a base, forming hinges with the base, which is fixed to the dam body. Each flap gate is equipped with two hydraulic cylinders and four support rods, with the front ends of the hydraulic cylinders and support rods hinged via a linkage shaft. Four rolling bushings are installed at the linkage shaft at the front end of the support rods. When the gate is filled with water, the rolling bushings form a contact pair with the supporting grooves; when the gate is lying flat, the rolling bushings disengage from the supporting grooves. The two hydraulic cylinders are equipped with a synchronization device to ensure synchronized operation. When the gate is filled with water, the hinges between the gate panel, support rods, and base form a triangle, giving the gate panel sufficient pressure-bearing capacity. When the gate is upright, it can fully store water; when it is lying flat, it can completely discharge floodwater without affecting fish migration and ensuring smooth navigation.

[0004] While existing technology can fully store water when upright and completely discharge floodwater when lying flat, the gate is somewhat unstable when using it, as it is supported solely by hydraulic equipment. The water also applies pressure to the gate simultaneously, making the gate unstable when upright.

[0005] Therefore, we propose a hydraulically regulated hydraulic flap gate opening and closing device to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a hydraulically regulated hydraulic flap gate opening and closing device to solve the problem mentioned in the background art, where the gate is unstable due to the reliance on hydraulic equipment for support, and the water body also applies pressure to the gate simultaneously, making the gate unstable in an upright state.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a hydraulically adjustable hydraulic flap gate opening and closing device, including a base, a flap for blocking water is hinged above the base, and an auxiliary mechanism is provided between the lower surface of the flap and the upper surface of the base. The auxiliary mechanism provides auxiliary support for the flap by rotating two sets of rotating rods contained therein.

[0008] Furthermore, a reinforcing plate is fixedly connected to the lower surface of the flap to enhance its load-bearing capacity, and the reinforcing plates are arranged at equal intervals along the lower surface of the flap.

[0009] Furthermore, the upper surface of the base is hinged with a hydraulic rod that enables the flap to flip, and the upper output end of the hydraulic rod is hinged between two sets of reinforcing plates. The hydraulic rods are symmetrically distributed in two sets about the center point of the base.

[0010] Furthermore, a fixed seat is fixedly connected to the center of the base, and the two sets of hydraulic rods are located on the left and right sides of the fixed seat, respectively.

[0011] Furthermore, the auxiliary mechanism includes an auxiliary plate that provides auxiliary support for the flip plate. The upper end of the auxiliary plate is hinged at the center of the lower surface of the flip plate, and a connecting seat is fixedly connected to the lower end of the auxiliary plate.

[0012] Furthermore, the upper end of the rotating rod is hinged to the side of the connecting seat, and two sets of rotating rods are symmetrically distributed about the center point of the connecting seat. The auxiliary plate is provided with a sliding groove.

[0013] Furthermore, the slide groove is slidably connected to a slider, and the upper end of the slider is hinged to the lower end of the rotating rod. A spring is provided between the two sets of sliders to buffer them.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The lower surface of the flap is equipped with a reinforcing plate, which can enhance the structural rigidity of the flap and significantly improve its impact resistance. This makes the flap form a more stable support system when subjected to water pressure, effectively dispersing the impact load of water flow, thereby avoiding the risk of structural instability or damage due to local stress concentration.

[0016] 2. The hydraulic rods adopt a mirror-symmetric layout, with a dual-axis symmetrical configuration based on the geometric center of the flap, forming a two-dimensional bidirectional support system. The symmetrical hydraulic support structure can achieve a static equilibrium state, transferring the water impact load axially to the rigid frame of the reinforcing plate through the hydraulic rods. This effectively avoids the structural instability risk caused by single-point support, ensuring that the flap maintains planar stiffness during opening and closing. Furthermore, the synchronous control mechanism of the hydraulic system achieves real-time balanced distribution of dynamic loads, significantly improving the overall structure's anti-overturning ability and operational reliability.

[0017] 3. An auxiliary plate is added as a central support node in the geometric center area of ​​the flap. The auxiliary plate acts as a central rigid constraint point and works in conjunction with the hydraulic actuator to achieve vector decomposition and spatial reconstruction of the load during the opening and closing of the flap. This effectively disperses the impact load to the three support nodes, forming a statically equivalent triangular force frame, which enhances the flap's resistance to deformation and its operational reliability under complex working conditions.

[0018] 4. When the flap flips upward, its core auxiliary plate drives the connecting seat to generate vertical displacement through the rigid connecting parts. The upward movement of the connecting seat is converted into planar motion through the rotating rod, causing the rotating rod to rotate. After rotation, the lower end of the rotating rod can synchronously drive the slider to slide along the inside of the groove. The two sets of rotating rods and the fixed seat form a dynamic geometric constraint system, forming an instantaneous triangular support configuration on the motion trajectory. The load path is optimized through spatial geometric nonlinear constraints.

[0019] 5. When the two sets of sliders slide against each other under the action of the rotating rod, the sliding distance between the two sets of sliders also changes synchronously, so that the springs set on their inner sides undergo elastic deformation synchronously. Through the elastic force of the springs themselves, the force of the slider movement can be further buffered, thereby improving the stability of the slider movement. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the fixing base of this utility model;

[0022] Figure 3 This is a three-dimensional sectional view of the present invention;

[0023] Figure 4 This is a three-dimensional structural diagram of the auxiliary plate of this utility model;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the rotating rod of this utility model;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the spring of this utility model.

[0026] In the diagram: 1. Base; 2. Flip plate; 3. Reinforcing plate; 4. Hydraulic rod; 5. Fixed seat; 6. Auxiliary plate; 7. Rotating rod; 8. Slide groove; 9. Slider; 10. Spring; 11. Connecting seat. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1: As Figures 1-3 The technical solution shown is provided by this utility model as follows: A hydraulically regulated hydraulic flap gate opening and closing device discloses a reinforcing plate, which makes the flap more stable under water pressure. The flap is hinged to the upper part of the base for blocking water. A reinforcing plate for strengthening its bearing capacity is fixedly connected to the lower surface of the flap. The reinforcing plates are arranged at equal intervals along the lower surface of the flap. A hydraulic rod for flipping the flap is hinged to the upper surface of the base. The upper output end of the hydraulic rod is hinged between two sets of reinforcing plates. Two sets of hydraulic rods are symmetrically distributed about the center point of the base. A fixed seat is fixedly connected to the center of the base. The two sets of hydraulic rods are located on the left and right sides of the fixed seat, respectively.

[0029] The lower surface of the flap is reinforced with a reinforcing plate, which enhances the structural rigidity of the flap and significantly improves its impact resistance. This allows the flap to form a more stable support system when subjected to water pressure, effectively dispersing the impact load of the water flow and avoiding the risk of structural instability or damage due to local stress concentration. The hydraulic rods adopt a mirror-symmetric layout, with a dual-axis symmetrical configuration based on the geometric center of the flap, forming a two-dimensional bidirectional support system. The symmetrical hydraulic support structure can achieve a static equilibrium state, transferring the impact load of the water flow axially to the rigid frame of the reinforcing plate through the hydraulic rods. This effectively avoids the risk of structural instability caused by single-point support, ensuring that the flap maintains planar rigidity during opening and closing. Furthermore, the synchronous control mechanism of the hydraulic system achieves real-time balanced distribution of dynamic loads, significantly improving the overall structure's anti-overturning ability and operational reliability.

[0030] Example 2: Figures 3-6The technical solution shown is provided by this utility model as follows: A hydraulically regulated hydraulic flap gate opening and closing device, which discloses an auxiliary mechanism to enhance the flap's resistance to deformation and operational reliability under complex working conditions. An auxiliary mechanism is provided between the lower surface of the flap and the upper surface of the base. The auxiliary mechanism provides auxiliary support to the flap through the rotation of two sets of rotating rods. The auxiliary mechanism includes an auxiliary plate for supporting the flap. The upper end of the auxiliary plate is hinged at the center of the lower surface of the flap, and a connecting seat is fixedly connected to the lower end of the auxiliary plate. The upper end of the rotating rod is hinged to the side of the connecting seat, and two sets of rotating rods are symmetrically distributed about the center point of the connecting seat. A sliding groove is provided on the auxiliary plate, and a slider is slidably connected inside the groove. The upper end of the slider is hinged to the lower end of the rotating rod, and a spring for buffering is provided between the two sets of sliders.

[0031] An auxiliary plate is added as a central support node in the geometric center area of ​​the flapper. This auxiliary plate, acting as a central rigid constraint point, works in conjunction with the hydraulic actuator to achieve vector decomposition and spatial reconstruction of the load during the flapper's opening and closing process. This effectively distributes the impact load to the three support nodes, forming a statically equivalent triangular force frame, enhancing the flapper's resistance to deformation and its operational reliability under complex working conditions. When the flapper flips upwards, its core auxiliary plate drives the connecting seat to generate vertical displacement through a rigid connector. The upward movement of the connecting seat is converted into planar motion via a rotating rod, causing the rotating rod to rotate. The lower end of the rotated rod synchronously drives the slider to slide along the inside of the groove. The two sets of rotating rods and the fixed seat constitute a dynamic geometric constraint system, forming an instantaneous triangular support configuration on the motion trajectory. Optimized load path distribution is achieved through spatial geometric nonlinear constraints. When the two sets of sliders slide against each other under the action of the rotating rod, the sliding distance between them also changes synchronously, causing the springs on their inner sides to undergo synchronous elastic deformation. Through the elastic force of the springs themselves, the force of the slider movement can be further buffered, thereby improving the stability of the slider movement.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic adjustment-based water conservancy flap gate opening and closing device, comprising a base (1), a flap (2) for blocking a water body is hinged above the base (1), characterized in that: An auxiliary mechanism is provided between the lower surface of the flap (2) and the upper surface of the base (1). The auxiliary mechanism provides auxiliary support for the flap (2) by rotating the two sets of rotating rods (7) contained therein.

2. The hydraulic adjustment based water sluice gate opening and closing device according to claim 1, characterized in that: The lower surface of the flap (2) is fixedly connected with a reinforcing plate (3) for strengthening its load-bearing capacity, and the reinforcing plates (3) are arranged at equal distances along the lower surface of the flap (2).

3. The hydraulic adjustment based water flashboard gate opening and closing device according to claim 2, characterized in that: The upper surface of the base (1) is hinged with a hydraulic rod (4) that allows the flap (2) to flip. The upper output end of the hydraulic rod (4) is hinged between two sets of reinforcing plates (3). The hydraulic rod (4) is symmetrically distributed in two sets about the center point of the base (1).

4. The hydraulic adjustment based water flashboard gate opening and closing device according to claim 3, characterized in that: A fixed seat (5) is fixedly connected to the center of the base (1), and the two sets of hydraulic rods (4) are located on the left and right sides of the fixed seat (5) respectively.

5. The hydraulic adjustment based water sluice gate opening and closing device according to claim 1, characterized in that: The auxiliary mechanism includes an auxiliary plate (6) that provides auxiliary support for the flap (2). The upper end of the auxiliary plate (6) is hinged at the center of the lower surface of the flap (2), and the lower end of the auxiliary plate (6) is fixedly connected to a connecting seat (11).

6. The hydraulic adjustment based water flashboard gate opening and closing device according to claim 5, characterized in that: The upper end of the rotating rod (7) is hinged to the side of the connecting seat (11), and two sets of rotating rods (7) are symmetrically distributed about the center point of the connecting seat (11). The auxiliary plate (6) is provided with a sliding groove (8).

7. The hydraulic adjustment based water flashboard gate opening and closing device according to claim 6, characterized in that: The slide groove (8) is slidably connected to a slider (9), and the upper end of the slider (9) is hinged to the lower end of the rotating rod (7). A spring (10) is provided between the two sets of sliders (9) for buffering.

Images