Lifting type river water retention weir structure
By using a liftable river weir structure, the rise and fall of the weir body is controlled by buoyancy and gravity, which solves the problem of existing weirs and dams affecting the river ecology during the flood season, realizes automatic regulation and ecological protection, and creates a good water landscape.
Patent Information
- Application Number
- CN202520073896.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-13
AI Technical Summary
Existing weirs and dams affect river ecosystems during flood season, require manual operation and energy consumption, hinder fish migration, and lead to biodiversity degradation.
Design a liftable river weir structure that uses buoyancy and gravity to control the lifting and lowering of the weir chamber and fishway chamber, achieving automatic adjustment without manual operation or energy consumption. Combined with the fishway module, it protects the fish migration channel.
It achieves automatic regulation of river water conservation, protects river ecology, reduces manpower and energy consumption, creates a beautiful water landscape, and takes into account both flood control and ecological protection.
Smart Images
Figure CN223675271U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to water conservancy construction technical field, concretely relates to a lifting type river water retaining weir structure. BACKGROUND
[0002] In order to realize the function of water storage in dry season and flood discharge in flood season, people build various types of small water retaining weirs on the river channel, these small weirs can intercept water flow, raise the upstream water level, form a certain water depth and water surface, and can create a good water landscape, improve the water ecological environment and human settlement environment. At present, the widely used fixed weirs include concrete weirs, earth and stone masonry weirs and the movable weirs include rubber dams, steel dam and hydraulic lifting dam.
[0003] There are still some deficiencies in the construction of these weirs: for example, the fixed weirs have a blocking effect on water flow, especially on flood discharge in flood season; the movable weirs need manpower to control, which requires high operation and response; and the weirs destroy the living environment of fish in the river channel, hinder the migration of fish and cause the degeneration of biological diversity.
[0004] In order to improve these problems, a new type of weir is needed, which should be able to automatically adjust without manual operation and does not need additional energy to start or stop, reduces labor cost and is more environmentally friendly, which helps to protect the river ecology. CONTENT OF THE UTILITY MODEL
[0005] In view of the deficiencies of the prior art, the utility model provides a lifting type river water retaining weir structure to solve the above problems.
[0006] The utility model provides the following technical scheme:
[0007] A lifting type river water retaining weir structure, which comprises a water retaining weir module and a stilling basin arranged in sequence along the water flow direction, and a fishway module is arranged between the water retaining weir module and the stilling basin;
[0008] The water retaining weir module is internally provided with a water retaining weir cabin body that rises and falls with the water level of the internal buoyancy tank, and the fishway module is internally provided with a fishway cabin body that rises and falls with the water level of the internal buoyancy tank;
[0009] The inner cavities of the water retaining weir cabin body and the fishway cabin body are communicated with the design flood level of the upstream water channel through a cabin body water inlet system;
[0010] The inner cavities of the water retaining weir cabin body and the fishway cabin body are communicated with the low elevation of the downstream water channel through a cabin body water outlet system;
[0011] The buoyancy tanks in the water retaining weir module and the fishway module are communicated with the downstream water channel through a communication pipe.
[0012] Preferably, the water retaining weir module has a plurality of groups of river crossing steps arranged in a line along the vertical water flow direction on the top wall of the water retaining weir cabin, and a flow discharge opening is formed between two adjacent groups of the river crossing steps.
[0013] Preferably, the cabin water inlet system comprises a water inlet pipeline, one end of the water inlet pipeline is arranged at a designed flood level upstream, and the other end of the water inlet pipeline is divided into a plurality of parallel branch pipes and connected with the cabin water inlets of the corresponding water retaining weir modules and fishway modules.
[0014] Preferably, each branch pipe of the water inlet pipeline is provided with a corresponding first flexible hose.
[0015] Preferably, the cabin water outlet system comprises a water outlet pipeline, one end of the water outlet pipeline is arranged at a low elevation downstream, and the other end of the water outlet pipeline is divided into a plurality of parallel branch pipes and connected with the cabin water outlets of the corresponding water retaining weir modules and fishway modules.
[0016] Preferably, each branch pipe of the water outlet pipeline is provided with a corresponding second flexible hose.
[0017] Preferably, the water retaining weir module and the fishway module are both internally provided with corresponding positioning guide rails, and the water retaining weir cabin and the fishway cabin vertically ascend and descend under the guidance of the corresponding positioning guide rails.
[0018] Preferably, the plurality of buoyancy pools are connected with each other through communication pipes.
[0019] The river water retaining weir structure has the following beneficial technical effects:
[0020] The river water retaining weir structure can automatically ascend and descend according to the water level, has multiple functions, can create a good water landscape in the river channel, and can also serve multiple functions such as flood control and ecology.
[0021] The entire weir dam system is balanced and controlled by the buoyancy of water and the gravity of the fishway cabin, the water retaining weir cabin and the water filled after filling, realizes the ascending and descending of the weir dam system, and does not need manual control and power consumption. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 is a plane schematic view of the utility model;
[0023] Figure 2 is a water retaining weir inflation running state diagram of the utility model in non-flood season;
[0024] Figure 3 is a front view schematic view in the downstream direction of the utility model;
[0025] Figure 4It is the A-A section schematic view of the non-flood period cabin body inflation state of the utility model;
[0026] Figure 5 It is the A-A section schematic view of the flood period cabin body water filling state of the utility model.
[0027] The reference signs in the drawing are:
[0028] 1, water retaining weir module; 11, river crossing step; 12, concrete recycling pool; 13, positioning guide rail; 14, buoyancy pool; 15, water retaining weir cabin body; 16, flow discharge outlet; 2, fishway module; 24, fishway cabin body; 3, stilling basin; 4, cabin body water inlet system; 41, water inlet pipeline; 42, first flexible hose; 43, water inlet system water inlet; 44, cabin body water inlet; 5, cabin body water outlet system; 51, water outlet pipeline; 52, second flexible hose; 53, cabin body water outlet; 54, water outlet system drain outlet; 6, communication pipe. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0030] Embodiment:
[0031] A lifting type river water retaining weir structure, as shown in the figure: Figures 1-5
[0032] A water retaining weir module 1 is arranged in the river channel, a stilling basin 3 is arranged downstream of the water retaining weir module 1, and a plurality of fishway modules 2 are arranged between the downstream of the water retaining weir module 1 and the stilling basin 3. The area of the river channel with the fishway modules 2 is defined as a fishway area, and the area without the fishway modules 2 is defined as a non-flood period drainage area.
[0033] The river channel riverbed downstream of the water retaining weir module 1 is concave to form the stilling basin 3.
[0034] The water retaining weir module 1 comprises a concrete recycling pool 12 corresponding to the opening of the hollow top wall, the inner side wall of the concrete recycling pool 12 is vertically provided with a positioning guide rail 13, the water retaining weir cabin body 15 is hollow and vertically slidably matched with the positioning guide rail 13, and the water retaining weir cabin body 15 is provided with a cabin body water inlet 44 and a cabin body water outlet 53; the inner cavity of the concrete recycling pool 12 is filled with water to form a buoyancy pool 14, and the water level of the buoyancy pool 14 controls the lifting of the corresponding water retaining weir cabin body 15. The water retaining weir module 1 and the fishway module 2 are the same in structure and different in function.
[0035] The fishway module 2 comprises a concrete recycling pool 12 corresponding to the internal hollow top wall opening, the inside wall of the concrete recycling pool 12 is vertically provided with a positioning guide rail 13, the fishway cabin body 24 is internally hollow and vertically slidably matched with the positioning guide rail 13, and the fishway cabin body 24 is provided with a cabin water inlet 44 and a cabin water outlet 53. The internal cavity of the concrete recycling pool 12 is filled with water to form a buoyancy pool 14, and the water level of the buoyancy pool 14 controls the lifting of the corresponding fishway cabin body 24.
[0036] The cabin water inlet system 4 comprises a water inlet pipeline 41 and a plurality of first flexible hoses 42, one end of the water inlet pipeline 41 is provided with a water system water inlet 43, the water system water inlet 43 is fixedly arranged at the design flood level of the upstream river channel of the water retaining weir module 1, the other end of the water inlet pipeline 41 is divided into a plurality of parallel branch pipes, and the cabin water inlet 44 of the water retaining weir module 1 and the fishway module 2 is connected with the corresponding branch pipe of the water inlet pipeline 41 through the first flexible hose 42.
[0037] The cabin water outlet system 5 comprises a water outlet pipeline 51 and a plurality of second flexible hoses 52, one end of the water outlet pipeline 51 is provided with a water system drain 54, the water system drain 54 is arranged at a lower elevation downstream of the stilling basin 3, the other end of the water outlet pipeline 51 is divided into a plurality of parallel branch pipes, and the cabin water outlet 53 of the water retaining weir module 1 and the fishway module 2 is connected with the corresponding branch pipe of the water outlet pipeline 51 through the second flexible hose 52.
[0038] The bottom of the buoyancy pool 14 in the internal cavity of each concrete recycling pool 12 of the water retaining weir module 1 and the fishway module 2 is connected with each other through the communication pipe 6, and the bottom of one buoyancy pool 14 is connected with the downstream stilling basin 3 through the communication pipe 6.
[0039] A row of river-crossing steps 11 is arranged at equal intervals on the top wall of the water retaining weir cabin 15 of the fishway module 2, and a flow discharge port 16 is formed between adjacent two river-crossing steps 11, and the water of the upstream river channel flows to the downstream stilling basin 3 through the flow discharge port 16.
[0040] A plurality of groups of fishway modules 2 are arranged along the water flow direction, the heights of the fishway cabin bodies 24 in each fishway module 2 are different, so that the plurality of groups of fishway modules 2 form a continuous downward descending slope structure along the water flow direction.
[0041] Working principle:
[0042] In the non-flood season, for example Figure 2 、 4As shown, the water level in the river upstream of the water-retaining weir module 1 is always lower than the design flood level. At this time, the water in the stilling basin 3 is transported through the connecting pipe 6 to the inner cavity of each concrete recycling pool 12 corresponding to the water-retaining weir module 1 and the fishway module 2 to form a buoyancy pool 14. When the water-retaining weir chamber 15 and the fishway chamber 24 move up to the upper limit under the guidance of the corresponding positioning guide rail 13, the highest water level of each buoyancy pool 14 is consistent with the horizontal height of the riverbed in the downstream river. The inner cavity of the water-retaining weir chamber 15 and the fishway chamber 24 corresponding to the buoyancy pool 14 is not filled with water and is lifted up under the action of water buoyancy. At this time, the second telescopic hose 52 is in the extended state and the first telescopic hose 42 is in the compressed state.
[0043] At this time, the water-retaining weir chamber 15 of the water-retaining weir module 1 can intercept the upstream water flow. When the water level of the upstream river exceeds the normal water level on the weir during the non-flood season, the water flows to the downstream stilling pool 3 through the downstream outlet 16. Some of the water flows through the top wall of multiple sets of inclined fish passage chambers 24 to the stilling pool 3 to form a channel for fish to swim. Thus, the fish downstream can swim upstream through this channel.
[0044] During the flood season, such as Figure 5 As shown, the water level in the upstream of the river exceeds the design flood level. Water from the upstream of the river continuously flows into the intake 43 of the water intake system. It is then transported through the intake pipe 41 and the first telescopic hose 42 to the inner cavities of each fishway cabin 24 and the water-retaining weir cabin 15. The inner cavities of the fishway cabin 24 and the water-retaining weir cabin 15 become water-filled and heavier, and then descend vertically under the action of gravity. During this process, the water in each buoyancy pool 14 corresponding to the water-retaining weir module 1 and the fishway module 2 is discharged to the stilling pool 3 through the connecting pipe 6. The speed at which water enters the inner cavities of the fishway cabin 24 and the water-retaining weir cabin 15 is greater than the speed at which water is discharged outward.
[0045] At this time, the horizontal height of the upper surface of the water-retaining weir 15 is almost aligned with the horizontal height of the riverbed of the upstream river channel. The water-retaining weir 15 of the water-retaining weir module 1 and the fishway 24 of the fishway module 2 will not intercept the upstream water flow and will not affect the flood discharge of the river channel. The second telescopic hose 52 is in a compressed state, and the first telescopic hose 42 is in an extended state.
[0046] When the water level in the upstream river drops below the design flood level, the water in the water-retaining weir 15 and the fishway 24 is discharged outward through the second telescopic hose 52 and the outlet pipe 51. The water-retaining weir 15 and the fishway 24 become lighter, and the buoyancy pool 14 is filled with water. Under the combined effect of these two factors, the water-retaining weir 15 and the fishway 24 naturally float upward, thus achieving water retention and storage. The water-retaining weir 15 retains and stores water to form a landscape water surface.
[0047] The above-described embodiments only express the specific implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application.
Claims
1. A lifting-type river water-retaining weir structure, characterized in that, It includes a water-retaining weir module (1) and a stilling basin (3) arranged sequentially along the direction of water flow, and a fishway module (2) is provided between the water-retaining weir module (1) and the stilling basin (3); The water-retaining weir module (1) has a water-retaining weir chamber (15) that rises and falls with the water level of its internal buoyancy pool (14), and the fishway module (2) has a fishway chamber (24) that rises and falls with the water level of its internal buoyancy pool (14). The inner cavities of the water-retaining weir (15) and the fishway (24) are connected to the design flood level of the upstream waterway through the water inlet system (4); The inner cavities of the water-retaining weir (15) and the fish passage (24) are connected to the lower elevation of the downstream waterway through the water outlet system (5); The buoyancy pool (14) inside the water-retaining weir module (1) and the fishway module (2) is connected to the downstream waterway through the connecting pipe (6).
2. The lifting-type river water-retaining weir structure according to claim 1, characterized in that, The water-retaining weir module (1) avoids the fish passage module (2). The top wall of the water-retaining weir chamber (15) has multiple sets of river-crossing stepping stones (11) arranged in a line along the vertical water flow direction. A flow discharge outlet (16) is formed between two adjacent sets of river-crossing stepping stones (11).
3. The lifting-type river water-retaining weir structure according to claim 1, characterized in that, The cabin water inlet system (4) includes a water inlet pipe (41), one end of which is set at the upstream design flood level, and the other end of which is divided into several parallel branch pipes and connected to the cabin water inlet (44) of the corresponding water-retaining weir module (1) and fishway module (2).
4. The lifting-type river water-retaining weir structure according to claim 3, characterized in that, Each branch of the water inlet pipe (41) is equipped with a corresponding first telescopic hose (42).
5. A lifting-type river water-retaining weir structure according to claim 1, characterized in that, The hull water outlet system (5) includes a water outlet pipe (51). One end of the water outlet pipe (51) is located at a lower elevation downstream. The other end of the water outlet pipe (51) is divided into several parallel branch pipes and connected to the hull water outlets (53) of the corresponding water retention weir module (1) and fishway module (2).
6. A lifting-type river water-retaining weir structure according to claim 5, characterized in that, Each branch of the water outlet pipe (51) is equipped with a corresponding second flexible hose (52).