Slope rail type fish lifting machine

Abstract

The utility model discloses a slope rail type fish lifting machine which comprises a fish guiding and collecting system, a lifting portal crane, a fish lifting rail and a fish conveying trolley. The fish guiding and collecting system is arranged on the side edge of a river channel; the lifting portal crane is located above the fish guiding and collecting system. The fish lifting track is located behind the fish guiding and collecting system and arranged along the mountain slope, and the tail end of the fish lifting track stretches into the water surface. And the fish conveying trolley runs on the fish lifting track. The fish attracting and collecting system provides fish attracting water flow through a water supplementing facility, a counter counts the number of fishes, and a fish screen is matched with a fish collecting hopper to complete fish collecting. The lifting portal crane lifts the fish collecting buckets from the fish collecting pond and places the fish collecting buckets on the fish conveying trolley, the fish conveying trolley climbs over the slope top along the fish lifting track arranged on the slope surface of the mountain slope behind the hub and then leads to the position below the water surface of a reservoir, and the fish collecting buckets are automatically opened under the action of buoyancy to complete the fish releasing task. The fish passing device solves the problem of fish passing in a reservoir with steep terrain, limited space and large water level amplitude, has the characteristics of simple structure, low manufacturing cost and high automation degree, and reduces the operation management difficulty while saving the construction cost.

Description

Technical Field

[0001] This utility model relates to a fish lifter for water conservancy projects, and more particularly to a fish lifter suitable for reservoir projects with steep terrain, limited space, and large water level fluctuations. Background Technology

[0002] With the increasing emphasis on ecological and environmental protection by the state, newly built large and medium-sized reservoirs are often required to be equipped with fish passage facilities. For high dams with steep terrain, limited space, and large fluctuations in reservoir water level during the fish passage period, conventional fish passage methods such as fish locks, simulated natural fishways, and technical fishways are often difficult to apply.

[0003] Fish lifts utilize technology to transport fish from the downstream river channel of a reservoir, across dams and other water-retaining structures, into the reservoir itself, demonstrating good adaptability. Currently, most fish lifts are of the vertical lift, gantry crane, or cable-stayed type. Vertical lifts are similar to elevators, requiring high investment and impacting the scenic effect of the hub; gantry cranes use large gantry cranes to lift fish, resulting in a large structure and poor aesthetic appeal; cable-stayed fish lifts are specialized equipment with high installation and maintenance costs and poor stability in windy and rainy weather. Utility Model Content

[0004] The purpose of this invention is to propose a slope track-type fish lift structure for high dams with steep terrain, limited space, and large fluctuations in reservoir water level during the fish passage period. On the one hand, it makes full use of the terrain and space, and on the other hand, it has a good fish passage effect. Furthermore, it has a simple structure, low cost, and can achieve automated operation.

[0005] This utility model is achieved through the following technical solution:

[0006] A slope-mounted rail-type fish lifter includes a fish attracting system, a lifting gantry crane, a fish lifting track, and a fish transport trolley. The fish attracting system is arranged on the side of the river channel; the lifting gantry crane is located above the fish attracting system; the fish lifting track is located behind the fish attracting system and arranged along the slope, with its end extending below the water surface; the fish transport trolley runs on the fish lifting track.

[0007] Furthermore, the fish attraction system comprises a water replenishment facility, a fish collection pond, fish collection buckets, a counter, and a fish barrier. At the beginning of the system, a counter and a fish barrier are sequentially arranged, followed by the fish collection pond. Fish collection buckets are placed within the fish collection pond, and the water replenishment facility is connected to the wall at the end of the pond. The water replenishment facility is generally an internal pressure steel pipe or a water pump, its main function being to supply water to the fish collection pond to create a stable fish-attracting current. The fish collection pond is a concave structure designed to accommodate the fish collection buckets, taking advantage of the fish's tendency to swim upstream. The fish collection buckets are fish collection containers. The counter counts the number of fish entering the fish collection pond in real time. The fish barrier, a hydraulically operated push-pull structure, is a protective device to prevent fish from escaping when the fish collection buckets are raised. During fish collection, the water replenishment facility is activated first. The fish, sensing the water flow, gather in the fish collection pond. After a period of time, once the number of fish reaches the threshold set by the counter, the fish barrier is closed, and the fish collection buckets are raised to prepare for fish transport.

[0008] Furthermore, the main function of the lifting gate is to lift the fish collection bucket from the fish collection pool and place it on the fish transport cart.

[0009] Furthermore, the fish-lifting track is generally arranged along the slope of the mountain behind the hub or the upstream and downstream slopes of the dam, and after crossing the top, it is laid below the low water level of the reservoir to ensure that the release of fish is not affected by water level changes. When the slope stability is good and the overburden layer is thin, the upper soil layer can be excavated, the track can be placed on a rock foundation, and anchor bars can be used to connect the fish-lifting track to the rock mass as a whole. Maintenance steps are set on both sides of the track. When the slope stability is poor and the overburden layer is thick, a concrete pile or frame column track structure can be used, with the bottom resting on good bedrock and the top of the fish-lifting track arranged. The slope ratio of the fish-lifting track should generally not be steeper than 1:1.2.

[0010] Furthermore, the fish transport vehicle is a rack-and-pinion type, powered by its own battery, and is mainly responsible for transporting the fish collection bucket to the reservoir along the fish lifting track. When the transport distance is long, the fish transport vehicle should be equipped with oxygenation equipment. The fish collection bucket can automatically tilt and open its hatch underwater due to buoyancy, allowing the fish to disperse from the bucket into the reservoir, thus completing the fish release task.

[0011] The beneficial effects of this utility model are:

[0012] 1. The fish-lifting track utilizes the slope of the mountain, solving the problem of arranging the fish-lifting machine under conditions of steep terrain and limited space, and has good adaptability to the terrain.

[0013] 2. The fish-raising track is laid below the low water level, and the fish-collecting bucket automatically releases fish using buoyancy, so the release of fish is not affected by changes in water level.

[0014] 3. Compared with conventional fish lifts, it occupies less space, requires less excavation area, and its structural layout has less impact on the overall landscape of the hub area.

[0015] 4. The slope track type fish lift has a simple structure, low investment, reliable operation, and can achieve automatic control. Attached Figure Description

[0016] Figure 1 This is a plan view of an embodiment of the present utility model;

[0017] Figure 2 This is a longitudinal sectional view of the present invention;

[0018] Figure 3 It is a three-dimensional isometric view of the fish-attracting system in the fish-attracting state;

[0019] Figure 4 This is a three-dimensional bird's-eye view of the fish-attracting system in the fish-raising state.

[0020] In the diagram: 1—Fish attraction system; 1a—Water replenishment facility; 1b—Fish collection pond; 1c—Fish collection bucket; 1d—Counter; 1e—Fish barrier; 2—Gantry; 3—Fish lifting track; 4—Fish transport trolley; 5—Anchor bar; 6—Maintenance step. Detailed Implementation

[0021] To make the objectives, technical implementation schemes, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] like Figures 1-4 As shown, this utility model discloses a slope-track type fish lifter, comprising a fish attracting system 1, a lifting gantry crane 2, a fish lifting track 3, and a fish transport trolley 4. The fish attracting system 1 is arranged on the side of the river channel; the lifting gantry crane 2 is located above the fish attracting system 1; the fish lifting track 3 is located behind the fish attracting system 1 and arranged along the slope of the hillside, with its end extending below the water surface; the fish transport trolley 4 runs on the fish lifting track 3.

[0023] The fish attraction system 1 consists of a water supply facility 1a, a fish collection pond 1b, a fish collection hopper 1c, a counter 1d, and a fish barrier 1e. The counter 1d and the fish barrier 1e are arranged sequentially at the beginning of the system. The fish collection pond 1b is connected to the fish barrier 1e, and the fish collection hopper 1c is located within the pond. The water supply facility 1a is connected to the wall at the end of the pond 1b. The water supply facility 1a is generally an internal pressure steel pipe or a water pump, and its main function is to supply water to the fish collection pond 1b to create a stable fish-attracting current. The fish collection pond 1b is a recessed fish-attracting structure designed to accommodate the fish collection hopper 1c, taking advantage of the fish's tendency to swim upstream. The fish collection hopper 1c is a fish-collecting device. The counter 1d counts the number of fish entering the fish collection pond 1b in real time. The fish barrier 1e is a hydraulically operated barrier to prevent fish from escaping when the fish collection hopper 1c is raised. When collecting fish, first turn on the water replenishment facility 1a. After the fish sense the water flow, they gather in the fish collection pond 1b. After a period of time, when the number of fish gathered reaches the threshold set by the counter 1d, close the fish barrier 1e and raise the fish collection bucket 1c to prepare for transporting the fish.

[0024] The main function of the lifting gate 2 is to lift the fish collection bucket 1c from the fish collection pool 1b and place it on the fish transport cart 4.

[0025] The fish-raising track 3 is generally laid along the slope of the mountain behind the hub or the upstream and downstream slopes of the dam body. After crossing the top, it is laid below the low water level of the reservoir to ensure that the fish release is not affected by water level changes. When the slope stability is good and the overburden layer is thin, the upper soil layer can be excavated, the track can be placed on the rock foundation, and anchor bars 5 can be used to connect the track to the rock mass. Maintenance steps 6 are set on both sides of the track. When the slope stability is poor and the overburden layer is thick, a concrete pile or frame column track structure can be used, with the bottom resting on good bedrock and the top of the fish-raising track 3 arranged. The track slope ratio should generally not be steeper than 1:1.2.

[0026] The fish transport trolley 4 is a rack-and-pinion type, powered by its own battery, and is mainly responsible for transporting the fish collection container 1c to the reservoir along the fish lifting track 3. When the transport distance is long, the fish transport trolley 4 should be equipped with oxygenation equipment. The fish collection container 1c can automatically tilt and open its hatch underwater due to buoyancy, allowing the fish to disperse from the fish collection container 1c into the reservoir, thus completing the fish release task.

[0027] The above embodiments have been described with reference to the accompanying drawings, but they should not be construed as limiting the scope of the present utility model. It should be noted that for those skilled in the art, any technical solutions obtained by equivalent substitution or equivalent transformation without departing from the concept of the present utility model are all within the protection scope of the present utility model.

Claims

1. A ramped track fish lifter characterised in that: The system includes a fish-attracting system, a lifting gantry crane, a fish-lifting track, and a fish-transporting trolley. The fish-attracting system is located on the side of the river channel. The lifting gantry crane is located above the fish-attracting system. The fish-lifting track is located behind the fish-attracting system and is arranged along the hillside, with its end extending below the water surface. The fish-transporting trolley runs on the fish-lifting track.

2. The ramped track fish elevator of claim 1, wherein: The fish attraction system consists of a water supply facility, a fish collection pond, a fish collection hopper, a counter, and a fish barrier. At the beginning of the fish attraction system, a counter and a fish barrier are arranged in sequence. The counter counts the number of fish entering the fish collection pond in real time, and the fish barrier is a hydraulic push-pull structure. The fish collection pond is connected after the fish barrier and has a recessed structure. The fish collection hopper is arranged in the fish collection pond and is a fish collection device. The water supply facility is connected to the wall at the end of the fish collection pond. The water replenishment facility is a pressure steel pipe or water replenishment pump inside the reservoir, which supplies water to the fish collection pond to form a stable fish-attracting water flow; the lifting gantry crane lifts the fish collection bucket from the fish collection pond and places it on the fish transport cart.

3. The ramped track fish elevator of claim 1, wherein: The fish-lifting track is generally arranged along the slope of the mountain behind the hub or the upstream and downstream slopes of the dam, and after crossing the top, it is laid below the low water level of the reservoir.

4. The ramped track fish elevator of claim 3, wherein: When the slope has good stability and the overburden layer is thin, the fish-lifting track is placed on the rock foundation and anchor bars are used to connect the fish-lifting track to the rock mass. Maintenance steps are set on both sides of the track.

5. The ramped track fish elevator of claim 3, wherein: When the slope stability is poor and the overburden layer is thick, the fish-lifting track adopts a concrete pile or frame column track structure. The bottom of the track structure is placed on good bedrock, and the fish-lifting track is arranged on the top.

6. The ramp rail fish elevator according to claim 1 or 3, characterized in that: The slope ratio of the fish-raising track is not steeper than 1:1.

2.

7. The ramped track fish elevator of claim 2, wherein: The fish transport trolley is a rack and pinion type, powered by its own battery, and transports the fish collection bucket to the reservoir along the fish lifting track.

8. The ramp rail fish elevator according to claim 1 or 7, characterized in that: The fish transport vehicle is equipped with oxygenation equipment.

9. The ramped track fish elevator of claim 2, wherein: The fish-collecting bucket can automatically flip and open its hatch underwater due to buoyancy.

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