Flexible fence door of river channel trash holding facility and flexible river channel trash holding facility

Abstract

The utility model relates to a flexible fence door of a river channel trash holding facility and the flexible river channel trash holding facility. The flexible fence door is formed by arranging a plurality of flexible rods, the flexible rods are vertically arranged, the lower portions of the flexible rods are inserted into the river bottom, a gap is reserved between every two adjacent flexible rods, the flexible rods are arranged to form a planar fence door or a cylindrical fence door, and the fence door is provided with or not provided with a flexible trash holding net and provided with or not provided with elastic ropes. The whole area or part of the area of the flexible river channel trash holding facility is formed by the flexible fence door. The structure of the trash holding device can be simplified under the condition that the navigation requirement of a small ship is met, and use is convenient.

Description

Technical Field

[0001] The utility model relates to a flexible fence door and a flexible river channel pollution interception facility, which is suitable for intercepting pollution in small rivers. Background Art

[0002] River channel trash interceptors primarily use fences (e.g., gratings) or other mesh structures to block debris from the water surface and adjacent areas. Impurities trapped by the interceptors are then salvaged manually or mechanically to maintain a clean surface. Trash screens and some nets are typically made of rigid materials or fixed to a rigid frame, secured to the river channel via the rigid grille or frame. Some nets are flexibly mounted via ropes that span the river channel. For example, Chinese patent document CN218911328U discloses a river channel trash interceptor comprising a fixing plate A, one side of which is threadedly connected to a connecting plate A via an A screw. A filter assembly is fixedly connected to a connecting plate B on one side of the filter assembly. The connecting plate B is threadedly connected to the fixing plate B via a B screw. The top of the fixing plate A is fixedly connected to a channel panel. A servo motor is fixedly connected to the top surface of the channel panel, and a transmission rod is fixedly connected to the output end of the servo motor. This river channel waste interceptor, through the installation of the filter screen assembly, screws the fixing bolt to fix the fixing plate A to one side of the river channel. According to the width of the river channel, the filter screen B is pulled to slide inside the filter screen A, and then the fixing plate B is fixed to the other side of the river channel, thereby adapting to intercepting waste in rivers of different widths. Chinese patent document CN217870349U discloses a river channel waste interceptor, including a base and a waste interceptor. The upper surface of the base is fixedly connected to a support rod, the inner side of the outer surface of the support rod is provided with a limiting hole, the middle part of the outer surface of the support rod is movably sleeved with a sliding block, the inner side surface of the sliding block is fixedly connected to a mounting block, and the inner side surface of the mounting block is fixedly connected to a fixed block. This river channel pollution interception device indirectly controls the upward or downward movement of the pollution interception net along the outer surface of the support rod until it reaches a specified position. The net is then fixed by controlling the interaction between the limit rod and the limit hole, achieving an adjustable function. This device can intercept and collect garbage on the river channel surface at multiple water levels, making it suitable for use in rivers with different water levels. Chinese patent document CN217733945U discloses a river channel pollution interception and cleaning device, comprising: a first fixed pile installed on one river bank; a second fixed pile installed on the other river bank and located downstream of the first fixed pile; a pollution interception net connected at one end to the first fixed pile and at the other end to the second fixed pile; and a sewage collection tank installed on the river bank where the second fixed pile is located to collect sewage that is washed toward the river bank by the water flow along the pollution interception net. These existing technologies each have their own unique features and can meet their respective usage requirements and are suitable for their respective applications. However, the installation of these pollution interception facilities will hinder the passage of ships and is not suitable for navigable rivers.

[0003] The above-mentioned problem has aroused people's concern. In order to allow ships to pass through, a feasible idea is to set a gate in the hard-installed trash-blocking facility. When a ship needs to pass through, the gate is opened manually or mechanically, and then closed after the ship passes. Chinese patent document CN216360709U discloses a new type of lake-entry river trash rack based on the above-mentioned technical concept. The trash rack comprises a frame, a plurality of piles are fixedly provided on the top inner wall of the frame, a plurality of tracks are fixedly provided on the inner wall of one side of the frame, a screen fence plate is fixedly provided between the plurality of tracks, garbage collection pools are provided on both sides of the screen fence plate, a fence gate is provided in the frame, a plurality of suspended balls are provided on the top of the track, the suspended balls are made of plastic foam, the track is perpendicular to the screen fence plate, the number of piles is five, and the cross-sectional diameter of the piles is ten centimeters. The number of tracks is four rows, and the tracks in each row are parallel. By setting a movable gate, the passage of ships is facilitated. However, while gates allow for the passage of ships, they not only result in complex equipment structures, increasing construction and maintenance costs, but also typically require human supervision or more complex automatic monitoring and control systems to ensure timely opening and closing of the gates. For situations where these conditions are not available or where cost considerations are a concern, particularly in rural areas and other waterways not suitable for high-cost watercourses, simpler and more practical technologies are still needed. Utility Model Content

[0004] The purpose of the utility model is to provide a flexible fence door and a flexible river channel pollution-blocking facility using such a flexible fence door or fence structure, so as to simplify the structure of the pollution-blocking equipment (or the door in the pollution-blocking equipment) and facilitate use while meeting the navigation requirements of small boats.

[0005] The technical solution of the utility model is that the flexible fence gate is formed by arranging a plurality of flexible rods, the flexible rods are vertically arranged, the lower parts of the flexible rods are inserted into the river bottom, and spacing is left between adjacent flexible rods.

[0006] The flexible rods are arranged in a plane (the flexible rods are distributed on a plane) to form a planar fence gate; or the flexible rods are arranged in a cylindrical shape to form a cylindrical (or curved) fence gate.

[0007] Preferably, the planar fence gate is arranged horizontally, perpendicular to the river flow direction, or in other words, the plane formed by the arrangement of the flexible rods is a plane perpendicular to the river flow direction (overall flow direction); the planar fence gate can also form an acute angle with the river flow direction.

[0008] Preferably, the cylindrical fence gate is arranged facing the water, or in other words, the cylindrical surface formed by the arrangement of the flexible rods is a convex cylindrical surface facing the water with the middle part convex toward the water, that is, the cylindrical surface formed by the arrangement of the flexible rods is a cylindrical surface with a horizontal convex curve (for example, a circular arc) with the middle part convex toward the water.

[0009] Preferably, the top of each flexible rod has the same height, which is higher than the normal water level of the river. The height above the normal water level can be set according to actual needs, and should usually be able to ensure that it can effectively block pollution under normal conditions.

[0010] Preferably, the flexible rods are distributed at equal intervals so that the pollution interception capacity of each part is consistent.

[0011] A flexible trash net may or may not be provided. The trash net should cover / span the area where each flexible rod is located (the area of ​​the entire fence gate) in the horizontal direction (along the horizontal direction of the fence gate, which can be simply referred to as the horizontal direction).

[0012] Preferably, the trash net is located in the water-facing direction of each flexible rod, and at least its two ends in the horizontal direction are connected to the flexible rods at corresponding positions.

[0013] Preferably, the upper edge (top edge) of the trash net is higher than the normal water level, and the lower edge (bottom edge) is lower than the normal water level.

[0014] Preferably, the meshes (grids) of the trash net are vertically arranged in a rhombus shape (one of the diagonal lines is a vertical rhombus).

[0015] A connecting rope connecting the flexible rods in the horizontal direction may or may not be provided, and the connecting rope is an elastic rope.

[0016] The flexible river channel pollution-blocking facility is characterized in that the entire area or a part of the area thereof is composed of any flexible fence door disclosed in the utility model.

[0017] The working principle and beneficial effects of the utility model are as follows: when a small boat passes by, the bamboo or other flexible rods constituting the fence gate or the trash screen are bent by the action of the small boat, so that the small boat can pass through the corresponding part; after the small boat passes, the flexible rods are automatically reset under their own elastic force, and the trash blocking function is restored.

[0018] The utility model has a simple structure, is easy to use, and does not hinder the passage of small boats. It is mainly suitable for small rivers with small boat navigation needs, especially in towns / rural areas and other small rivers that are not suitable for high investment. Among them, the fence door can be used as a door in any suitable form of trash screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of a trash grille / barrier door involved in the utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of a trash grille / barrier door of the present invention;

[0021] Figure 3This is a schematic diagram of the top view of a trash grille / barrier door of the present invention;

[0022] Figure 4 This is a schematic diagram of the top view of a trash grille / barrier door of the present invention;

[0023] Figure 5 This is a schematic diagram of the top view of a trash grille / barrier door of the present invention;

[0024] Figure 6 This is a schematic diagram of the top view of a trash screen of the present invention;

[0025] Figure 7 The utility model is a schematic diagram of a top view of the structure of a trash grille. DETAILED DESCRIPTION

[0026] See also Figure 1-Figure 7 The present invention employs a flexible fence structure as a flexible fence gate, or as a flexible river channel trash interception facility (main body). The flexible fence structure is composed of a plurality of flexible rods 11. The flexible rods bend when a vessel passes through, allowing the vessel to pass. After the vessel passes, the flexible rods return to their upright position, effectively intercepting the trash. When this flexible rod-based fence structure is used as a flexible fence gate, it can be installed in a vessel passage (also known as a doorway or gate) of a fixed trash screen or other trash interception facility, serving as an automatically resettable fence gate allowing passage of vessels (e.g., small boats used by farmers). When this flexible rod-based fence structure is used as a trash screen, it is installed throughout the entire river channel cross-section, allowing vessels to pass through at any suitable location within the river channel cross-section.

[0027] The flexible fence structure is composed of a plurality of flexible rods arranged vertically, and the lower portion 12 of the flexible rods is inserted into the riverbed 8. The insertion depth can be based on actual needs, for example, the insertion depth can be 1 meter to ensure that the flexible rods are fixed to the riverbed.

[0028] The spacing between adjacent flexible rods is set according to the need for intercepting pollution. For example, the gap between adjacent flexible rods can be 5cm or 10cm to intercept debris exceeding the corresponding size. At the same time, the water flow demand is taken into account to avoid obstruction of river flow due to excessive resistance caused by too small a gap.

[0029] The flexible poles can be made of any suitable material. For example, when using this type of flexible fence structure for small rivers in rural Jiangnan areas of my country, the locally abundant moso bamboo can be used as the poles to save costs. The poles can be made from a single section of bamboo, or by splitting a suitable section of the bamboo longitudinally into two or more pieces to achieve the desired flexibility.

[0030] The arrangement / distribution of the flexible rods, or the resulting fence shape, can be tailored to the requirements of the fence gate or waste-control facility. For example, the flexible rods can be arranged along a straight line (horizontally) to form a planar fence structure (referred to as the fence). This line can be perpendicular to the river channel (or the direction of the river flow) or at an acute angle (e.g., 30-60°) to the river channel direction. In other words, the fence structure can be arranged at an acute angle to the river flow. In this case, especially when a waste net is installed on the fence structure, intercepted debris will flow along the inclination of the fence structure to one side (the downstream side) of the river, facilitating salvage. This also helps reduce the amount of debris carried downstream by ships during passage.

[0031] The flexible rods can also be arranged along a curve (horizontal curve), especially a convex curve (for example, a circular arc) with the middle part convex toward the water direction, to form a convex cylindrical fence structure (fence gate or trash screen). The front end tangent of the curve in the water direction is perpendicular to the extension direction of the river channel (or the direction of river flow). In this case, especially when a trash net is provided on the fence structure, the intercepted impurities will be gathered to the river banks on both sides along the bending direction of the fence structure to facilitate salvage, which is also beneficial to reduce the amount of impurities flowing downstream with the ship when the ship passes.

[0032] The height (top height) of each flexible rod can usually be the same, slightly higher than the maximum water level required for interception. The normal water level of the river can usually be used as a reference, with the top of the flexible rod higher than the normal water level. The degree of elevation above the normal water level can be set based on actual needs. Generally speaking, it should ensure effective interception of pollutants under normal circumstances.

[0033] If necessary, a flexible wire mesh (for example, a nylon mesh, which can be called a trash net) 18 can be set on the fence structure composed of arranged flexible rods. The flexible wire mesh set on the fence structure extends horizontally along the direction of the grille structure, covering the entire area of ​​the fence grille within a certain height range to achieve effective trash interception.

[0034] The trash net is preferably arranged on the water-facing side / water-facing direction of the fence structure to facilitate cleaning / salvaging of the intercepted debris.

[0035] The trash net can be fixedly connected to the fence structure. This connection can be achieved in any suitable manner, for example, the two horizontal ends of the trash net are fixedly connected to flexible rods at corresponding positions.

[0036] The vertical size of the trash net set on the flexible fence structure can be determined according to the needs of trash interception. Normally, the trash net should vertically cover the water level variation range under non-abnormal circumstances, and for any water level where effective trash interception should be achieved, the top edge of the trash net should be above the water level line and the bottom edge should be below the water level line.

[0037] The mesh should be angled so that the main portion of the wires (the wires that connect the mesh) extend diagonally and in opposite directions, creating a symmetrical arrangement to facilitate horizontal stretching. In this case, one diagonal line of the diamond-shaped mesh (grid) is vertical, and the other diagonal line is horizontal.

[0038] Depending on the actual situation, the mesh should be horizontally relaxed, with a certain amount of margin. That is, when the mesh is not stretched (when the flexible rods or grating structure are not bent by force), its horizontal length should be greater than the actual horizontal span of the fence structure. The mesh can be tied with ropes to multiple, roughly equidistant flexible rods, with the mesh between any adjacent connections relaxed, to prevent it from interfering with the bending of the flexible rods during passage by ships. The mesh's slack / margin can be determined based on the mesh length requirements for flexible rod bending during ship passage. If necessary, a mesh woven with elastic thread can be used.

[0039] If necessary, a horizontally arranged elastic rope can also be used as the connecting rope 15, and the connecting rope can be connected to each flexible rod (for example, tied / tied to the flexible rod) to facilitate the integrity of the fence structure.

[0040] The elastic rope can be connected to the middle of the flexible rod and can be lower than the bottom height of the relevant ship in the vertical direction, thereby reducing the requirement for elastic expansion and contraction while achieving the integrity of the fence structure.

[0041] The fence structure is flanked by fixed facilities 20, such as shores or fixed trash-blocking facilities. For example, when this fence structure is used as a barrier gate for trash-blocking, fixed trash-blocking grilles or other trash-blocking facilities can be placed on either side. The middle of the trash-blocking facility is interrupted by a gap, forming a doorway for ships to pass through. The flexible fence gate is placed in the doorway to block trash in the doorway area while not hindering navigation. Therefore, this fence gate can be called a navigation gate.

[0042] Depending on actual needs, a fixed screen for trash screening can be made of materials such as bamboo. Several vertical bamboos (or other vertical bars, similarly hereinafter) serve as the screen's vertical bars 23. These bars are arranged in a horizontal direction (the horizontal direction in which the trash screen is to be installed), with their lower portions inserted into the riverbed. Horizontal bamboos (or other horizontal bars, similarly hereinafter) serve as the screen's transverse bars 24. Multiple horizontal bars can be arranged vertically. The horizontal bamboos are tied to the vertical bars to form a fixed screen.

[0043] A trash net may also be provided on the fixed grille, and the trash net is preferably located on the water-facing side of the fixed grille.

[0044] When the fixing facility on the outer side (river bank side) of the trash net is an installation foundation such as a hard bank slope or a hard frame, the outer edge of the trash net can be extended a distance toward the water along the installation foundation, and the wire mesh extended along the installation foundation can be pressed by the pressure plate 28, and the pressure plate (and the pressed wire mesh) can be fastened to the installation foundation with the splint fastening bolts 27.

[0045] The areas near the riverbanks on both sides of the fixed grille can be provided with recesses (concave structures) 22 in the direction of the water flow to collect the intercepted debris.

[0046] Especially for rivers with relatively small widths and relatively low pollution control requirements, this fence structure can be used as a flexible river channel pollution control facility, covering the entire flow surface without the need for fixed grilles, etc. The pollution control net can be installed or not according to actual needs.

[0047] The intercepted debris can be removed regularly by manual salvaging. A mechanical automatic salvaging device can also be provided according to the prior art to salvage the debris.

[0048] Unless otherwise specified or when one preferred or optional technical means is a further limitation of another technical means, the preferred and optional technical means disclosed in the present utility model can be arbitrarily combined to form several different specific implementation methods.

Claims

1. The flexible fence door of the river pollution control facility is characterized by It is composed of several flexible rods arranged vertically, with the lower part inserted into the riverbed, and there is a gap between adjacent flexible rods.

2. The flexible fence door according to claim 1, characterized in that The flexible rods are arranged in a plane to form a planar fence gate; or the flexible rods are arranged in a cylindrical shape to form a cylindrical fence gate.

3. The flexible fence door according to claim 2, characterized in that The flat fence gate is set horizontally, perpendicular to the river flow direction, or at an acute angle to the river flow direction; the cylindrical fence gate is set facing the water, with the middle part convex toward the water direction.

4. The flexible fence door according to claim 1, characterized in that The top of each flexible rod has the same height and is higher than the normal water level of the river.

5. The flexible fence door according to claim 1, characterized in that The flexible rods are distributed at equal intervals.

6. The flexible fence door according to claim 1, characterized in that A flexible trash-blocking net is provided, which transversely covers / spans the area where each flexible rod is located, is located in the water-facing direction of each flexible rod, and at least its two transverse ends are connected to the flexible rods at corresponding positions.

7. The flexible fence door according to claim 6, characterized in that The upper edge of the trash net is higher than the normal water level, and the lower edge is lower than the normal water level.

8. The flexible fence door according to claim 6, characterized in that The mesh of the trash net is a vertically arranged diamond shape.

9. The flexible fence door according to claim 1, characterized in that A transverse connecting rope is provided for connecting the flexible rods, and the transverse connecting rope is an elastic rope.

10. Flexible river channel pollution control facility, characterized by The entire area or a part of the area is composed of the flexible fence door according to any one of claims 1-9.

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