A fish passing monitoring device capable of automatically removing attached garbage on fish barrier

Abstract

The application discloses a fish-passing monitoring device capable of automatically removing the attached garbage on fish-blocking grids, comprising a fish-passing channel and a fish-passing box arranged in the fish-passing channel, the fish-passing box is provided with two communicating openings arranged oppositely, the two communicating openings are communicated and the two communicating openings are respectively opposite to the upstream and downstream of the fish-passing channel; fish-blocking grids are arranged on the two sides of the fish-passing box, the fish-blocking grids are arranged obliquely along the water flow direction, the upstream end of the fish-blocking grid is connected with the fish-passing box, and the downstream end of the fish-blocking grid is abutted with the inner wall of the corresponding side wall of the fish-passing channel, so that the fish can only migrate to the upstream through the fish-passing box; along the water flow direction, the fish-blocking grid is composed of a fixed section and a movable section, the fixed section is fixedly arranged, and the upstream end of the movable section is rotatably arranged at the downstream end of the fixed section through a connecting mechanism, so that the garbage can flow into the movable section and rotate to the downstream direction through the movable section under the action of the water flow, and the garbage attached on the fish-blocking grid is removed.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of water conservancy and hydropower engineering, and relates to a fish passing monitoring device, in particular to a fish passing monitoring device capable of automatically removing attached garbage of fish blocking grids. BACKGROUND

[0002] Water conservancy and hydropower engineering construction usually has adverse effects on aquatic ecology, especially on fish, mainly manifested in that the construction of dams causes river blockage, leading to the compression of the living environment of fish resources, thereby affecting the normal exchange of fish resources genes, and finally leading to the gradual depletion and disappearance of fish resources. In order to alleviate such adverse effects, a fish passage is usually set during the construction of water conservancy and hydropower engineering, and real-time monitoring of the fish passing condition of the fish passage is an important monitoring method.

[0003] The existing monitoring method usually sets a fish passing box in the fish passage, and sets fish blocking grids on both sides of the fish passing box, so that fish in the downstream of the fish passage can only migrate to the upstream through the fish passing box. Meanwhile, a camera and an ultrasonic device are arranged inside the fish passing box to monitor and record the number, species and size of fish passing through the fish passing box in real time.

[0004] However, garbage will enter the fish passage from the upstream along with the water flow, and then attach to the fish blocking grids. The increase of garbage will increase the water blocking ratio of the fish blocking grids, and if the garbage is not cleaned in time, the fish blocking grids are prone to be damaged under the impact of water flow. At present, the garbage attached to the fish blocking grids is usually removed by manual cleaning, which has high working intensity and low working efficiency. SUMMARY

[0005] In view of the above deficiencies in the prior art, the purpose of the present application is to provide a fish passing monitoring device capable of automatically removing attached garbage of fish blocking grids. The present application can automatically remove the attached garbage of fish blocking grids in time without manual operation.

[0006] The technical scheme of the present application is as follows:

[0007] A fish passing monitoring device capable of automatically removing attached garbage of fish blocking grids, comprising a fish passage and a fish passing box arranged in the fish passage, the fish passing box having two through openings arranged oppositely, the two through openings being communicated and the two through openings being respectively opposite to the upstream and downstream of the fish passage.

[0008] Fish blocking grids are arranged on both sides of the fish passing box, the fish blocking grids are arranged obliquely along the water flow direction, the upstream end of the fish blocking grid is connected with the fish passing box, and the downstream end of the fish blocking grid abuts against the inner wall of the corresponding fish passage side wall, so that fish can only migrate to the upstream through the fish passing box.

[0009] In the water flow direction, the fish blocking grid is composed of a fixed section and a movable section, the fixed section is fixedly arranged, and the upstream end of the movable section is rotatably arranged at the downstream end of the fixed section through a connecting mechanism, so that the garbage flowing into the movable section under the action of the water flow is rotated to the downstream direction to remove the garbage attached to the fish blocking grid.

[0010] Further, the fish blocking grid of the fixed section comprises a plurality of vertically arranged fixed piles, all of which are fixedly arranged in the fish passage at intervals, and the upstream end of the movable section is arranged on the fixed piles of the fixed section through the connecting mechanism.

[0011] In the vertical direction, a plurality of first fish blocking rods are horizontally arranged between the adjacent two fixed piles, and all of the first fish blocking rods are arranged at intervals.

[0012] Alternatively

[0013] The upper ends and the lower ends of the adjacent two fixed piles are respectively provided with connecting rods, and a plurality of first fish blocking rods are vertically arranged at intervals between the two connecting rods.

[0014] Further, the fish blocking grid of the movable section is composed of a plurality of horizontally arranged second fish blocking rods, all of which are arranged at intervals in the vertical direction, and the second fish blocking rods of the movable section are composed of a plurality of flexible fish blocking rods located at the upper part and a plurality of rigid fish blocking rods located at the lower part; each rigid fish blocking rod is rotatably arranged at the downstream end of the fish blocking grid of the fixed section through a one-way spring valve, and each flexible fish blocking rod is fixedly arranged at the downstream end of the fish blocking grid of the fixed section through a fixed connecting piece.

[0015] Further, the fish blocking grids located on both sides of the fish passage are symmetrically arranged, and the two fish blocking grids are respectively arranged on both sides of the downstream end of the fish passage.

[0016] Further, the angle between the fish blocking grid and the water flow direction is 45°.

[0017] Further, the length ratio of the movable section to the fixed section is 1:3.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] 1. The fish blocking grid in the present application is arranged obliquely along the water flow direction, and under the action of the water flow, the garbage at the upstream end of the fish blocking grid will automatically flow to the movable section, when the garbage in the movable section accumulates to a certain amount, the connecting mechanism drives the movable section to rotate to a certain angle in the downstream direction, and then the garbage attached to the fish blocking grid of the movable section is removed through the action of the water flow, after the garbage is removed, the connecting mechanism timely drives the movable section to rotate in the upstream direction to restore the original position, in this way, the garbage is transferred to the movable section through the action of the water flow, and then the garbage is automatically removed in time through the rotation of the movable section, and the whole process does not require manual operation.

[0020] 2、The second fish blocking rod of the movable section is horizontally arranged and is composed of a flexible fish blocking rod at the upper part and a rigid fish blocking rod at the lower part, the rigid fish blocking rod is arranged at the downstream end of the fixed section through a one-way spring valve, and can slide the heavier garbage to the two sides of the fish passage; the flexible fish blocking rod is flexible in structure, when the garbage accumulated on the upper part of the movable section reaches a certain amount, the flexible fish blocking rod is deformed by bending, so that the garbage is discharged, thereby realizing the timely removal of the garbage, and after the garbage is removed, the flexible fish blocking rod quickly recovers, avoiding the fish from passing through from this place into the upstream, and improving the accuracy of monitoring. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 - The plan view of the present application.

[0022] Figure 2 - The elevation view of the present application.

[0023] Figure 3 - The connection schematic view of the rigid fish blocking rod and the elastic spring valve.

[0024] Wherein: 1-fish passage; 11-fish passage side wall; 2-fish passage box; 3-fish blocking grid; 31-fixed section; 31a-fixed pile; 31b-connection rod; 31c-first fish blocking rod; 32-movable section; 32a-flexible fish blocking rod; 32b-rigid fish blocking rod; 32c-elastic spring valve. DETAILED DESCRIPTION

[0025] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0026] Referring to Figure 1 , Figure 2 and Figure 3 , a fish passage monitoring device capable of automatically removing the attached garbage of the fish blocking grid, comprising a fish passage 1 and a fish passage box 2 arranged in the fish passage 1, the fish passage box 2 has two opposite arranged through openings, the two through openings are communicated and the two through openings are respectively opposite to the upstream and downstream of the fish passage 1.

[0027] Fish blocking grids 3 are arranged on the two sides of the fish passage box 2 respectively, the fish blocking grids 3 are arranged obliquely along the water flow direction, the upstream end of the fish blocking grids 3 is connected with the fish passage box 2, and the downstream end of the fish blocking grids 3 abuts against the inner wall of the corresponding fish passage side wall 11, so that the fish can only migrate to the upstream through the fish passage box 2.

[0028] Along the water flow direction, the fish blocking grids 3 are composed of a fixed section 31 and a movable section 32, the fixed section 31 is fixedly arranged, and the upstream end of the movable section 32 is rotatably arranged at the downstream end of the fixed section 31 through a connection mechanism, so as to facilitate the removal of the garbage attached to the fish blocking grids 3 under the action of the water flow after the garbage flows into the movable section 32 and rotates in the downstream direction through the movable section 32.

[0029] Here, the fish blocking grid is inclined along the direction of water flow. Under the action of water flow, the garbage on the upstream end of the fish blocking grid will automatically flow to the movable section. When the garbage accumulated in the movable section reaches a certain amount, the connecting mechanism drives the movable section to rotate a certain angle in the downstream direction. Then, through the action of water flow, the garbage attached to the fish blocking grid of the movable section is removed. After removing the garbage, the connecting mechanism timely drives the movable section to rotate in the upstream direction to restore the original position. In this way, the garbage is transferred to the movable section through the action of water flow, and then the garbage is automatically removed in time through the rotation of the movable section. The whole process does not require manual operation.

[0030] In specific implementation, the fish blocking grid of the fixed section 31 includes a plurality of vertically arranged fixed stakes 31a. All the fixed stakes 31a are fixedly arranged in the fishway at intervals. The upstream end of the movable section 32 is arranged on the fixed stakes 31a of the fixed section 31 through the connecting mechanism.

[0031] In the vertical direction, a plurality of first fish blocking rods are horizontally arranged between the adjacent two fixed stakes 31a, and all the first fish blocking rods are arranged at intervals in the vertical direction. This is the fixed section fish blocking grid structure formed when the first fish blocking rods are horizontally arranged.

[0032] Here, a fixed stake can be directly arranged near the fish passage box of the fixed section, but in order to avoid the passage of fish, the gap between the fixed stake and the fish passage box needs to be controlled. Meanwhile, the two connecting rods can be directly connected with the fish passage box.

[0033] Referring to Figure 2 , the upper end and the lower end of the adjacent two fixed stakes 31a are respectively provided with a connecting rod 31b horizontally arranged, and a plurality of first fish blocking rods 31c are vertically arranged at intervals between the two connecting rods 31b. This is the fixed section fish blocking grid structure formed when the first fish blocking rods are vertically arranged.

[0034] Here, a fixed stake can be directly arranged near the fish passage box of the fixed section, but in order to avoid the passage of fish, the gap between the fixed stake and the fish passage box needs to be controlled. Meanwhile, the two connecting rods can be directly connected with the fish passage box.

[0035] In specific implementation, the fish blocking grid of the movable section 32 is composed of a plurality of horizontally arranged second fish blocking rods. All the second fish blocking rods are arranged at intervals in the vertical direction, and in the vertical direction, the second fish blocking rods of the movable section 32 are composed of a plurality of flexible fish blocking rods 32a located at the upper part and a plurality of rigid fish blocking rods 32b located at the lower part. Each rigid fish blocking rod 32b is rotatably arranged at the downstream end of the fish blocking grid of the fixed section 31 through a one-way spring valve, and each flexible fish blocking rod 32a is fixedly arranged at the downstream end of the fish blocking grid of the fixed section 31 through a fixed connecting piece.

[0036] It is found through research that the garbage in the middle and lower part of the fish passageway is heavy, such as stones, and the garbage in the middle and upper part of the fish passageway is mainly floating objects, such as plastic bags. The rigid fish barrier is arranged on the fixed stake at the downstream end of the fixed section through a one-way spring valve. Specifically, as shown in Figure 3 the one-way spring valve is fixed on the fixed stake at the downstream end of the fixed section, the rigid fish barrier is connected with the one-way spring valve, and the one-way spring valve has a certain spring force. When the garbage upstream of the movable section is small, the water flow impact force is smaller than the spring force due to small water resistance, and the rigid fish barrier does not move; when the garbage upstream of the movable section accumulates to a certain amount, the water flow impact force is greater than the spring force when the water resistance ratio reaches a certain value, the one-way spring valve drives the rigid fish barrier to rotate in the downstream direction, and the heavy garbage slides along the water flow direction to both sides of the fish passageway, so that the workers can clean the garbage on both sides of the fish passageway, and the one-way spring valve automatically drives the rigid fish barrier to restore to the original state. Of course, the specification of the one-way spring valve needs to be determined according to the specific flow rate of the fish passageway.

[0037] The upstream end of the flexible fish barrier can be fixed on the fixed stake through a screw and a connecting plate. The flexible fish barrier has a certain strength, and the downstream end will bend and deform under a certain force, like a comb. During the process of combing hair, the tips of the comb teeth will bend and deform. When the garbage in the upper part of the movable section accumulates to a certain amount, the flexible fish barrier will bend and deform, thereby discharging the garbage and achieving timely removal of the garbage. After the garbage is removed, the flexible fish barrier will quickly recover to avoid fish passing through from this place into the upstream.

[0038] In specific implementation, the fish barrier grating 3 located on both sides of the fish passageway 2 is symmetrically arranged, and the two fish barrier gratings 3 are arranged on both sides of the downstream end of the fish passageway 2.

[0039] In specific implementation, the angle between the fish barrier grating 3 and the water flow direction is 45°.

[0040] Through research, it is found that such an angle can effectively ensure that the garbage attached to the fish barrier grating corresponding to the fixed section enters the movable section under the action of water flow, thereby ensuring that the garbage is effectively removed. When the angle is less than 45°, the garbage is mainly subjected to force in the water flow direction; when the angle is greater than 45°, the garbage is mainly subjected to force in the transverse direction.

[0041] In specific implementation, the length ratio of the movable section to the fixed section is 1:3.

[0042] In this way, the fixed section can effectively support the movable section to ensure the structural stability of the fish barrier grating. When the ratio is less than 1:3, the length of the movable section is small and cannot effectively remove the garbage. When the ratio is greater than 1:3, the length of the movable section is long, so that the supporting effect of the fixed section on the movable section is weak and is easily deformed by water impact.

[0043] Finally, it should be noted that the above-described embodiments of the present application are merely illustrative and not limiting of the present application. Other variations to the implementations can be apparent to those skilled in the art having the benefit of the above description. Thus, the scope of the present application should be determined by the following claims.

Claims

1. A fish passing monitoring device capable of automatically removing the attached garbage of fish barrier, comprising a fish passing channel and a fish passing box arranged in the fish passing channel, the fish passing box having two opposite openings, the two openings being communicated and the two openings being respectively opposite to the upstream and downstream of the fish passing channel; characterized in that: fish barriers are respectively arranged on both sides of the fish passing box, the fish barriers are arranged obliquely along the water flow direction, the upstream end of the fish barrier is connected with the fish passing box, and the downstream end of the fish barrier abuts against the inner wall of the corresponding side wall of the fish passing channel, so that the fish can only swim through the fish passing box to the upstream; along the water flow direction, the fish barrier is composed of a fixed section and a movable section, the fixed section is fixedly arranged, and the upstream end of the movable section is rotatably arranged at the downstream end of the fixed section through a connecting mechanism, so as to facilitate the rotation of the fish barrier in the downstream direction under the action of water flow after the garbage flows into the movable section and is removed through the movable section. The fish barrier of the fixed section comprises a plurality of vertically arranged fixed piles, and all the fixed piles are fixedly arranged in the fish passing channel; the upstream end of the movable section is arranged on the fixed piles of the fixed section through the connecting mechanism; In the vertical direction, a plurality of first fish barriers are horizontally arranged between the adjacent two fixed piles, and all the first fish barriers are arranged at intervals in the vertical direction; 2. The fish passing monitoring device capable of automatically removing attached garbage from the fish barrier according to claim 1, wherein Or The upper end and the lower end of the adjacent two fixed piles are respectively provided with a connecting rod, and a plurality of first fish barriers are vertically arranged at intervals between the two connecting rods. The fish barrier of the movable section is composed of a plurality of horizontally arranged second fish barriers, all the second fish barriers are arranged at intervals in the vertical direction, and in the vertical direction, the second fish barriers of the movable section are composed of a plurality of flexible fish barriers located at the upper part and a plurality of rigid fish barriers located at the lower part; each rigid fish barrier is rotatably arranged at the downstream end of the fish barrier of the fixed section through a one-way spring valve, and each flexible fish barrier is fixedly arranged at the downstream end of the fish barrier of the fixed section through a fixed connecting piece. The fish barriers located on both sides of the fish passing box are symmetrically arranged, and the two fish barriers are respectively arranged on both sides of the downstream end of the fish passing box.

3. The fish passing monitoring device capable of automatically removing the attached garbage of the fish barrier according to claim 1 or 2, characterized in that, The included angle between the fish barrier and the water flow direction is 45°.

4. The fish passing monitoring device capable of automatically removing attached garbage from the fish barrier according to claim 1, wherein The length ratio of the movable section to the fixed section is 1:

3.

5. The fish passing monitoring device capable of automatically removing the attached garbage of the fish barrier according to claim 4, wherein ​ 6. The fish passing monitoring device capable of automatically removing attached garbage from the fish barrier according to claim 1, wherein ​

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