A low-resistance trash screen with flow direction self-adaptation

Abstract

This utility model discloses a low-resistance debris barrier that adapts to water flow direction. The debris barrier includes a floating connecting rod, an anchor chain, and a permeable debris barrier. The floating connecting rod includes a float, a rotating component, a connecting shaft, and a debris barrier connecting strip. The lower end of the float is connected to the upper end of the connecting shaft via the rotating component. The lower end of the connecting shaft is connected to the debris barrier connecting strip. One side of the permeable debris barrier is unfolded and fixed to the debris barrier connecting strip, and the other side of the permeable debris barrier is unfolded and fixed to the debris barrier connecting strip of another floating connecting rod. The connecting shaft is equipped with a connecting component, and the connecting components on the two connecting shafts are connected by an anchor chain. This utility model can effectively prevent the spread of bed sand in the construction area, reduce the accumulation of silt in the vicinity, and minimize the impact of dredging construction on the surrounding environment, achieving the goals of ecological protection and silt reduction.

Description

Technical Field

[0001] This utility model relates to the fields of dredging engineering auxiliary equipment and ecological environmental protection technology. It is particularly applicable to dredging construction scenarios in water conservancy projects, waterway regulation and port construction, and is used to control the spread of sediment in the construction area and protect the surrounding ecological environment. Background Technology

[0002] Dredging is an important means of maintaining smooth waterways, improving the function of water conservancy facilities, and constructing ports. It involves removing underwater silt, sediment, and other sediments using dredgers and other equipment to ensure waterway depth and optimize flow conditions. However, during dredging operations, the bed sediment in the dredging area is easily dispersed into surrounding waters by the water flow. This not only leads to siltation in nearby waters, affecting the normal operation of waterways and water conservancy facilities, but also causes water turbidity, water quality deterioration, damage to aquatic life habitats, and adverse effects on the surrounding ecosystem.

[0003] Existing facilities for intercepting sediment are mostly fixed structures using methods such as counterweight anchors or insertion fixation. These structures cannot adapt to dynamic changes in runoff and tidal flow, resulting in high flow resistance. The interception facilities are prone to displacement or damage due to water flow impact, exhibiting poor stability and failing to effectively prevent sediment spread. Furthermore, some interception facilities, due to resistance issues, can interfere with the water flow in the construction area, exacerbating sediment agitation and spread. This not only affects dredging efficiency but also fails to meet ecological and environmental protection requirements.

[0004] Therefore, there are currently problems such as difficulty in controlling sediment spread during dredging construction, resulting in significant ecological impact; and poor adaptability and high resistance of existing pollution interception facilities. Utility Model Content

[0005] Purpose of the utility model: This utility model aims to provide a debris barrier that adapts to the water flow direction in the construction area, thereby reducing siltation, protecting the surrounding environment, and achieving the ecological and environmental protection goals of dredging construction.

[0006] Technical solution: A low-resistance debris barrier that adapts to water flow direction, comprising a floating connecting rod, an anchor chain, and a permeable debris barrier; the floating connecting rod includes a float, a rotating component, a connecting shaft, and a debris barrier connecting strip; the lower end of the float is connected to the upper end of the connecting shaft via the rotating component, and the lower end of the connecting shaft is connected to the debris barrier connecting strip; one side of the permeable debris barrier is unfolded and fixed to the debris barrier connecting strip, and the other side of the permeable debris barrier is unfolded and fixed to the debris barrier connecting strip of another floating connecting rod; the connecting shaft is provided with a connecting component, and the connecting components on the two connecting shafts are connected by an anchor chain.

[0007] Furthermore, a debris barrier unit includes a first floating connecting rod, a second floating connecting rod, an anchor chain, and a permeable debris barrier; the debris barrier includes one or more debris barrier units.

[0008] Furthermore, the float is preferably ellipsoidal.

[0009] Furthermore, the rotating component can be a ball bearing, with a float connection slot at the lower end connecting to the inner ring of the ball bearing, and a connection slot at the upper end of the connecting shaft connecting to the outer ring of the ball bearing.

[0010] Furthermore, the rotating component can be a magnetic levitation bearing, with the lower end of the float connected to the magnetic levitation bearing rotor and the upper end of the connecting shaft connected to the magnetic levitation bearing.

[0011] Furthermore, the permeable barrier can be fixed to the connecting component by straps.

[0012] Furthermore, the connecting component is fixedly mounted on the connecting shaft, and the connecting component is a ring-shaped, hook-shaped, or snap-fit ​​structure.

[0013] Furthermore, the connecting strip of the debris barrier is connected to the permeable debris barrier via buttons.

[0014] Beneficial effects: The floats of this utility model's debris barrier are independent of each other. The debris barrier floats on the water surface through the floats, which automatically change direction and rotate with the water flow in the construction area, ensuring minimal water flow resistance and achieving stability. This utility model can effectively prevent the spread of bed sand in the construction area, reduce siltation in the vicinity, and minimize the impact of dredging construction on the surrounding environment, achieving the goals of ecological protection and silt reduction. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention;

[0016] Figure 2 This is a three-dimensional schematic diagram of Embodiment 2 of this utility model;

[0017] Figure 3 This is a schematic diagram of the rotating component in Embodiment 3 of this utility model;

[0018] Figure 4 This is a schematic diagram of the float connection bayonet in Embodiment 3 of this utility model;

[0019] Figure 5 This is a schematic diagram of the connection component in Embodiment 5 of this utility model. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments.

[0021] The working principle of this utility model is as follows:

[0022] The debris barrier floats in the water via a float connected to a rotating component at its lower end, allowing the float to rotate 360 ​​degrees. This rotating component is designed for low resistance. Placed in the water flow, the low-resistance rotating component effectively allows the float to rotate in place. This ensures that even in complex flow conditions, the float maintains a nearly constant relative position. Consequently, the debris barrier itself remains relatively stable, achieving its stability.

[0023] Example 1:

[0024] like Figure 1 A water flow direction adaptive low-resistance debris barrier includes a floating connecting rod, an anchor chain 4, and a permeable debris barrier 5. The floating connecting rod includes a float 1, a rotating component 2, a connecting shaft 3, and a debris barrier connecting strip 7. The lower end of the float 1 is connected to the upper end of the connecting shaft 3 via the rotating component 2. The lower end of the connecting shaft 3 is connected to the debris barrier connecting strip 7. One side of the permeable debris barrier 5 is unfolded and fixed to the debris barrier connecting strip 7, and the other side of the permeable debris barrier 5 is unfolded and fixed to the debris barrier connecting strip 7 of another floating connecting rod. The connecting shaft 3 is provided with a connecting component 6, and the connecting components 6 on the two connecting shafts 3 are connected by the anchor chain 4.

[0025] The float 1 is ellipsoidal. The ellipsoid has a smoothly transitioning curved surface along its major axis, more closely resembling an ideal streamline. Water flows smoothly over it, adhering to the surface, and the significantly rearward shift of the flow separation point results in a substantial reduction in the vortex zone at the float's tail. Therefore, the total flow resistance, especially the form resistance, of the ellipsoidal float is far less than that of other shapes, reducing the impact load of the water flow on the float and lowering the overall stress on the debris screen.

[0026] Example 2:

[0027] A low-resistance debris barrier that adapts to water flow direction, comprising a floating connecting rod, an anchor chain 4, and a permeable debris barrier 5; the floating connecting rod comprises a float 1, a rotating component 2, a connecting shaft 3, and a debris barrier connecting strip 7; the lower end of the float 1 is connected to the upper end of the connecting shaft 3 via the rotating component 2, and the lower end of the connecting shaft 3 is connected to the debris barrier connecting strip 7; one side of the permeable debris barrier 5 is unfolded and fixed to the debris barrier connecting strip 7, and the other side of the permeable debris barrier 5 is unfolded and fixed to the debris barrier connecting strip 7 of another floating connecting rod; the connecting shaft 3 is provided with a connecting component 6, and the connecting components 6 on the two connecting shafts 3 are connected by the anchor chain 4.

[0028] Furthermore, a debris barrier unit includes a first floating connecting rod, a second floating connecting rod, an anchor chain 4, and a permeable debris barrier 5; as shown... Figure 2 The pollution barrier includes multiple pollution barrier units.

[0029] Example 3:

[0030] A low-resistance debris barrier that adapts to water flow direction, comprising a floating connecting rod, an anchor chain 4, and a permeable debris barrier 5; the floating connecting rod comprises a float 1, a rotating component 2, a connecting shaft 3, and a debris barrier connecting strip 7; the lower end of the float 1 is connected to the upper end of the connecting shaft 3 via the rotating component 2, and the lower end of the connecting shaft 3 is connected to the debris barrier connecting strip 7; one side of the permeable debris barrier 5 is unfolded and fixed to the debris barrier connecting strip 7, and the other side of the permeable debris barrier 5 is unfolded and fixed to the debris barrier connecting strip 7 of another floating connecting rod; the connecting shaft 3 is provided with a connecting component 6, and the connecting components 6 on the two connecting shafts 3 are connected by the anchor chain 4.

[0031] like Figure 3 The rotating component 2 is a ball bearing. For example... Figure 4 The lower end of the float 1 is provided with a float connecting bayonet 1-1 for connection with the inner ring of the ball bearing, and the upper end of the connecting shaft 3 is provided with a connecting bayonet for connection with the outer ring of the ball bearing.

[0032] Example 4:

[0033] A low-resistance debris barrier that adapts to water flow direction, comprising a floating connecting rod, an anchor chain 4, and a permeable debris barrier 5; the floating connecting rod comprises a float 1, a rotating component 2, a connecting shaft 3, and a debris barrier connecting strip 7; the lower end of the float 1 is connected to the upper end of the connecting shaft 3 via the rotating component 2, and the lower end of the connecting shaft 3 is connected to the debris barrier connecting strip 7; one side of the permeable debris barrier 5 is unfolded and fixed to the debris barrier connecting strip 7, and the other side of the permeable debris barrier 5 is unfolded and fixed to the debris barrier connecting strip 7 of another floating connecting rod; the connecting shaft 3 is provided with a connecting component 6, and the connecting components 6 on the two connecting shafts 3 are connected by the anchor chain 4.

[0034] The rotating component 2 is a magnetic levitation bearing. The lower end of the float 1 is connected to the magnetic levitation bearing rotor, and the upper end of the connecting shaft 3 is connected to the magnetic levitation bearing.

[0035] Example 5:

[0036] A low-resistance debris barrier that adapts to water flow direction, comprising a floating connecting rod, an anchor chain 4, and a permeable debris barrier 5; the floating connecting rod comprises a float 1, a rotating component 2, a connecting shaft 3, and a debris barrier connecting strip 7; the lower end of the float 1 is connected to the upper end of the connecting shaft 3 via the rotating component 2, and the lower end of the connecting shaft 3 is connected to the debris barrier connecting strip 7; one side of the permeable debris barrier 5 is unfolded and fixed to the debris barrier connecting strip 7, and the other side of the permeable debris barrier 5 is unfolded and fixed to the debris barrier connecting strip 7 of another floating connecting rod; the connecting shaft 3 is provided with a connecting component 6, and the connecting components 6 on the two connecting shafts 3 are connected by the anchor chain 4.

[0037] like Figure 5 The connecting component 6 is fixedly mounted on the connecting shaft 3, and the connecting component 6 is ring-shaped.

Claims

1. A low-resistance debris barrier with adaptive water flow direction, characterized in that, The debris barrier includes a floating connecting rod, an anchor chain (4), and a permeable debris barrier (5); the floating connecting rod includes a float (1), a rotating component (2), a connecting shaft (3), and a debris barrier connecting strip (7); the lower end of the float (1) is connected to the upper end of the connecting shaft (3) through the rotating component (2), and the lower end of the connecting shaft (3) is connected to the debris barrier connecting strip (7). One side of the permeable debris barrier (5) is unfolded and fixed to the debris barrier connecting strip (7), and the other side of the permeable debris barrier (5) is unfolded and fixed to the debris barrier connecting strip (7) of another floating connecting rod; the connecting shaft (3) is provided with a connecting component (6), and the connecting components (6) on the two connecting shafts (3) are connected by an anchor chain (4).

2. The water flow direction adaptive low-resistance debris barrier according to claim 1, characterized in that, A debris barrier unit includes a first floating connecting rod, a second floating connecting rod, an anchor chain (4), and a permeable debris barrier (5); the debris barrier includes one or more debris barrier units.

3. The water flow direction adaptive low-resistance debris barrier according to claim 1, characterized in that, The float (1) is ellipsoidal.

4. The water flow direction adaptive low-resistance debris barrier according to claim 1, characterized in that, The rotating component (2) is a ball bearing. The lower end of the float (1) is provided with a float connection slot (1-1) to connect with the inner ring of the ball bearing, and the upper end of the connecting shaft (3) is provided with a connection slot to connect with the outer ring of the ball bearing.

5. The water flow direction adaptive low-resistance debris barrier according to claim 1, characterized in that, The rotating component (2) is a magnetic levitation bearing. The lower end of the float (1) is connected to the magnetic levitation bearing rotor, and the upper end of the connecting shaft (3) is connected to the magnetic levitation bearing.

6. The water flow direction adaptive low-resistance debris barrier according to claim 1, characterized in that, The permeable screen (5) is fixed to the connecting component (6) by straps.

7. The water flow direction adaptive low-resistance debris barrier according to claim 1, characterized in that, The connecting component (6) is fixedly mounted on the connecting shaft (3), and the connecting component (6) is a ring, hook, or snap-fit ​​structure.

8. The water flow direction adaptive low-resistance debris barrier according to claim 1, characterized in that, The connecting strip (7) of the debris barrier is connected to the permeable debris barrier (5) by a button.

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