A fish-blocking device at a water intake

Abstract

This invention belongs to the field of fish-blocking technology, specifically a fish-blocking device for a water intake. It includes two support columns, a first guide rod, and several electric grids. The first guide rod is installed between the two support columns, and the electric grids are evenly distributed on the first guide rod. When energized, the electric grids create an electric field to prevent fish from approaching. The device also includes an interception component installed on the first guide rod to block animal carcasses. Due to factors such as weather changes, indiscriminate release of fish, and toxic algae, dead fish may exist in reservoirs and other water bodies. These dead fish float in the water and are unaffected by the electric field. Because the electrodes are vertical metal tubes, dead fish may pass through the electric grids unimpeded to the water intake. The interception component intercepts the dead fish, improving the problem of dead fish passing through the electric grids and affecting water intake.

Description

Technical Field

[0001] This invention belongs to the field of fish blocking, specifically a fish blocking device for a water intake. Background Technology

[0002] In drinking water systems such as reservoirs, fish barriers need to be installed at the water intake to block and drive fish away from the intake. Current fish barriers include fishing nets, electric fences, and bamboo and wooden fences. Compared with traditional methods such as fishing nets and bamboo and wooden fences, electric fences have the advantages of low cost, high interception efficiency, and low manpower input.

[0003] Electric fish-blocking devices typically consist of electrodes and pulse generators. The electrodes are arranged in single or double rows of metal tubes at a certain distance in the water to create an electric field that prevents fish from escaping. Depending on the environment in which they are used, they can be classified as buried, suspended, or floating.

[0004] Due to factors such as weather changes, indiscriminate release of fish, and toxic algae, dead fish may exist in water bodies such as reservoirs. These dead fish float in the water and are not affected by the electric field. Since the electrodes are vertical metal tubes with gaps between them, dead fish may pass through the electric grid to the water intake, thus affecting the water quality.

[0005] Therefore, the present invention provides a fish-blocking device for a water intake. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a fish-blocking device at a water intake, comprising two support columns, a first guide rod, and several electric grids. The first guide rod is installed between the two support columns, and the several electric grids are evenly distributed on the first guide rod. When the electric grids are energized, they form an electric field to prevent fish from approaching. The device also includes an interception component installed on the first guide rod, which serves as a sieve frame for blocking animal carcasses and a monitoring mechanism for observing animal carcasses.

[0008] Preferably, the interception assembly includes: a plurality of first connecting rods slidably mounted on the first guide rod, the first connecting rods and the electric grid being alternately distributed on the first guide rod; a connecting plate rotatably mounted below the first connecting rod; two lead screws rotatably mounted on the connecting plate; second connecting rods mounted on the lead screws, the screen frame being mounted on the two second connecting rods, and the monitoring mechanism being mounted on the second connecting rods.

[0009] Preferably, it further includes: a second guide rod mounted on the support column; an ejection mechanism slidably mounted on the second guide rod, a guide tube fixedly mounted below the ejection mechanism, the ejection mechanism being able to communicate with the screen frame through the guide tube, the ejection mechanism including: a box for containing dead fish, the box being connected to the guide tube, a rotating door installed on the side wall and lower end of the box, the door on the side wall being for dead fish to exit from the box; a push plate slidably mounted inside the box, a second spring being installed between the push plate and the box; a rotating rod rotatably mounted inside the box, the rotating rod being threadedly connected to the push plate, an impeller being installed at one end of the rotating rod; a first ratchet mounted at one end of the rotating rod; a first check block slidably mounted on the box, the first check block being used to restrict the first ratchet from rotating in one direction, a third spring being installed between the first check block and the box; and a fixed rod fixedly mounted on the second guide rod, the fixed rod being located within the movement range of the first check block.

[0010] Preferably, the screen frame adopts a folding structure, and a support rod is slidably installed on the screen frame. After the support rod slides down out of the interior of the screen frame, the screen frame folds. After the support rod slides up into the interior of the screen frame, the screen frame opens.

[0011] Preferably, the interception assembly further includes: a first spring fixedly installed between the screen frame and the support rod; and a baffle fixedly installed on the connecting plate, the baffle being used to prevent the support rod and the screen frame from moving upward together.

[0012] Preferably, the interception assembly further includes a fan blade rotatably mounted on the side wall of the screen frame, with a screen plate covering the other side of the fan blade, and the rotation of the fan blade allows water to flow into the screen frame.

[0013] Preferably, the interception assembly further includes: a slide rod that is slidably mounted above the screen frame, the support rod being movably connected to the slide rod; a first switch mounted on the slide rod, the first switch being inserted into the interior of the screen frame through a hole in the screen frame, the holes on both sides of the screen frame being aligned, the first switch being used to control the alignment of the screen frame and the guide tube, and the ejection mechanism being activated again.

[0014] Preferably, the interception assembly further includes: a warning light mounted on the ejection mechanism; a second ratchet rotatably mounted on the second connecting rod, with a torsion spring installed between the second ratchet and the second connecting rod; a second switch fixedly mounted on the second connecting rod, the second switch being within the movement range of the second ratchet, and the second switch, when triggered, controlling the activation of the warning light; a pawl rotatably mounted on the support rod, the pawl being used to push the second ratchet to rotate; and a telescopic rod fixedly mounted on the second connecting rod, with a second check block fixedly mounted above the telescopic rod, the second check block being used to restrict the unidirectional rotation of the second ratchet.

[0015] Preferably, a rangefinder and a sliding rod are fixedly installed on the first guide rod, and a floating body is slidably installed on the sliding rod. Both the first guide rod and the second guide rod are slidably connected to the support column. The rangefinder adjusts the position of the second guide rod and the first guide rod on the support column by measuring the distance between itself and the floating body.

[0016] Preferably, it further includes: a first connecting rope passing through a plurality of the first connecting rods and the electric grid, the first connecting rope being slidably connected to the first connecting rods and the electric grid; a fixed column placed on one side of the support column; a floating plate, on which a second connecting rope is fixedly installed, the second connecting rope passing through the fixed column and connected to the first connecting rope.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The fish-blocking device at a water intake according to the present invention, by setting up an interception component, intercepts dead fish, thereby improving the problem of dead fish passing through the electric grid and affecting water intake at the water intake. In conjunction with the ejection mechanism, the intercepted dead fish are extracted and ejected, taking the dead fish out of the interception component and ejecting them to the shore, thereby improving the problem of dead fish remaining in the screen frame, decomposing and affecting the water quality at the water intake.

[0019] 2. The fish-blocking device at the water intake of the present invention, by setting up a plug and a No. 1 switch, can prevent dead fish in the screen frame from being not pulled away by the ejection mechanism. With the help of a No. 2 switch, when the probability of dead fish appearing is high or there is a problem with the ejection mechanism, the No. 2 switch can be triggered, which can control the warning light to light up and send an abnormal signal to the staff so as to facilitate quick troubleshooting.

[0020] 3. The fish-blocking device at the water intake of the present invention, by setting a floating plate, when a flood occurs, is subjected to the force of the flowing water, and the floating plate generates a backward force. Therefore, the second pull rope in front is pulled by the floating plate and generates a forward force on the first pull rope, so as to reduce the backward force generated by the water flow impact on the interception components and electric grid on the first pull rope, reduce the probability of the first guide rod breaking, and extend the service life of the device. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a perspective view of Embodiment 1 of the present invention;

[0023] Figure 2 This is a schematic diagram of the interception component of the present invention;

[0024] Figure 3 This is a schematic diagram of the internal structure of the housing of the present invention;

[0025] Figure 4 This is a schematic diagram of the mechanism of the first ratchet of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the insertion rod of the present invention;

[0027] Figure 6 This is a schematic diagram showing the position of the second switch of the present invention;

[0028] Figure 7 This is a schematic diagram of the mechanism of the second ratchet and pawl of the present invention;

[0029] Figure 8 This is a schematic diagram of the position of the rangefinder of the present invention;

[0030] Figure 9 This is a structural diagram of rope number one and rope number two;

[0031] In the diagram: 1. Support column; 2. Guide rod No. 1; 3. Electric grid; 4. Interception assembly; 41. Connecting rod No. 1; 42. Connecting plate; 43. Lead screw; 44. Connecting rod No. 2; 45. Monitoring mechanism; 46. Screen frame; 47. Support rod; 48. Spring No. 1; 49. Baffle; 410. Fan blade; 411. Insert rod; 412. Switch No. 1; 413. Warning light; 414. Ratchet No. 2; 415. Switch No. 2; 416. Pawl; 417. Telescopic rod; 418. No. 2 check valve; 5. No. 2 guide rod; 6. Ejection mechanism; 61. Box body; 62. Push plate; 63. No. 2 spring; 64. Rotating rod; 65. Impeller; 66. No. 1 ratchet; 67. No. 1 check valve; 68. No. 3 spring; 69. Fixed rod; 7. Guide tube; 8. Rangefinder; 9. Sliding rod; 10. Floating body; 11. No. 1 connecting rope; 12. Fixed column; 13. No. 2 connecting rope; 14. Floating board. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0033] like Figures 1-9 As shown in the embodiment of the present invention, a fish-blocking device at a water intake includes two support columns 1, a first guide rod 2, and several electric grids 3. The first guide rod 2 is installed between the two support columns 1, and the several electric grids 3 are evenly distributed on the first guide rod 2. When the electric grids 3 are energized, they form an electric field to prevent fish from approaching. The device also includes an interception component 4 installed on the first guide rod 2, a sieve frame 46 for blocking animal carcasses, and a monitoring mechanism 45 for observing animal carcasses.

[0034] Specifically, due to factors such as weather changes, indiscriminate release of fish, and toxic algae, dead fish may exist in reservoirs and other water bodies. These dead fish float in the water and are unaffected by the electric field. Because the electrodes are vertical metal tubes, there is a possibility that dead fish can pass unimpeded through the electric grid 3 to the water intake. Figure 1The two support rods 47 are located on the left and right sides. The monitoring mechanism 45 is made of waterproof material. The monitoring mechanism 45 adopts the existing structure of taking pictures through cameras and feeding the pictures back to the controller. The controller controls the movement of the parts. Before operation, the support columns 1 are set up on both banks of the river or reservoir. When operating, the electric grid 3 is energized. After being energized, an electric field is formed between each electric grid 3. When live fish approach, they will feel the stimulation of the current, thus causing the live fish to move away from the water intake, thereby achieving the effect of intercepting live fish. When the monitoring mechanism 45 captures dead fish about to float on the water surface or dead fish about to rise from the water, the screen frame 46 is controlled to move behind the dead fish. Waiting for the dead fish to move into the screen frame 46, the action of intercepting dead fish is achieved. By setting up the interception component 4, dead fish are intercepted, which improves the problem of dead fish passing through the electric grid 3 and affecting the water intake.

[0035] like Figure 1 , Figure 2 and Figure 4 As shown, the interception component 4 includes: a plurality of first connecting rods 41 slidably mounted on the first guide rod 2, the first connecting rods 41 and the electric grid 3 being alternately distributed on the first guide rod 2; a connecting plate 42 rotatably mounted below the first connecting rods 41; two lead screws 43 rotatably mounted on the connecting plate 42; second connecting rods 44 mounted on the lead screws 43, the screen frame 46 being mounted on the two second connecting rods 44, and the monitoring mechanism 45 being mounted on the second connecting rods 44.

[0036] Specifically, in the initial state, the sieve frame 46 is located above the water surface. When the monitoring device 45 captures images of dead fish about to float on the water surface or dead fish about to rise from the water, it controls the first connecting rod 41 to slide left and right relative to the first guide rod 2. At the same time, it controls the screw 43 to rotate so that the second connecting rod 44 and the sieve frame 46 move downwards synchronously until the middle of the sieve frame 46 is at the same height as the dead fish. The first connecting rod 41 slides left and right, causing the sieve frame 46 to move left and right synchronously until the sieve frame 46 is behind the dead fish. After the dead fish moves into the sieve frame 46, it controls the screw 43 to rotate so that the second connecting rod 44 and the sieve frame 46 move upwards until the sieve frame 46 moves the dead fish out of the water. This achieves the action of intercepting dead fish. Compared with the method of intercepting with the entire fishing net, the method of this invention can bring dead fish out of the water, improving the problem of dead fish getting stuck in the fishing net or floating outside the fishing net, and the decomposition of dead fish affecting the water quality at the water intake. It also makes it easier for staff to remove them.

[0037] like Figure 1 , Figure 3 and Figure 4As shown, it also includes: a second guide rod 5 installed on the support column 1; an ejection mechanism 6 slidably installed on the second guide rod 5, a guide tube 7 fixedly installed below the ejection mechanism 6, the ejection mechanism 6 being able to communicate with the screen frame 46 through the guide tube 7, the ejection mechanism 6 including: a box 61 for containing dead fish, the box 61 being connected to the guide tube, the side wall and lower end of the box 61 being equipped with rotating doors, the side wall doors being used for dead fish to exit from the box 61; a push plate 62 slidably installed inside the box 61, the push plate 62 being installed between the push plate 62 and the box 61. There is a second spring 63; a rotating rod 64 rotatably installed inside the housing 61, the rotating rod 64 being threadedly connected to the push plate 62, and an impeller 65 installed at one end of the rotating rod 64; a first ratchet 66 installed at one end of the rotating rod 64; a first check block 67 slidably installed on the housing 61, the first check block 67 being used to restrict the first ratchet 66 from rotating in one direction, and a third spring 68 installed between the first check block 67 and the housing 61; and a fixed rod 69 fixedly installed on the second guide rod, the fixed rod 69 being within the movement range of the first check block 67.

[0038] Specifically, the fixing rod 69 is positioned close to the shore on the second guide rod 5. A suction pump is installed inside the ejection mechanism 6. One or two ejection mechanisms 6 can be designed as needed. The feed inlet of the guide pipe 7 is located below the water surface. Due to the restriction of the first check block 67, the first ratchet 66 can only rotate clockwise (towards...). Figure 4For example, in daily use, when the impeller 65 is blown by the wind from front to back, it can drive the rotating rod 64 and the first ratchet 66 to rotate clockwise. The clockwise rotation of the first ratchet 66 causes the push plate 62 to move from left to right, which compresses the second spring 63. During operation, after dead fish are intercepted in the screen frame 46, the control screw 43 is rotated, causing the screen frame 46 and the dead fish to move upward until the screen frame 46 is at the same level as the guide tube 7. Then, the ejection mechanism 6 and the guide tube 7 are controlled to move left and right until the guide tube 7 is aligned with the screen frame 46. Then, the door at the lower end of the box 61 of the ejection mechanism 6 is opened, and the suction pump is operated to suck the dead fish in the screen frame 46 into the box 61 through the guide tube 7. Then, the door at the lower end of the box 61 is closed. Move the box 61 and the dead fish to the left. During the movement, the first check block 67 contacts the fixed rod 69. Since the fixed rod 69 remains stationary, the first check block 67 is pushed to the right until it no longer contacts the first ratchet 66. At this time, the third spring 68 is compressed, and the push plate 62 is pushed by the second spring 63 to slide to the left. The push plate 62 slides and pushes the dead fish to move synchronously until the dead fish are ejected from the box 61 and fall to the shore. Then, control the box 61 to move to the right until the first check block 67, under the action of the third spring 68, engages with the first ratchet 66 again. This completes the action of ejecting the dead fish to the shore. There is no need for manual handling of the dead fish in the sieve frame 46, making it convenient to use.

[0039] like Figure 5 As shown, the sieve frame 46 adopts a folding structure. A support rod 47 is slidably installed on the sieve frame 46. After the support rod 47 slides down out of the interior of the sieve frame 46, the sieve frame 46 folds. After the support rod 47 slides up into the interior of the sieve frame 46, the sieve frame 46 opens.

[0040] Specifically, in the initial state, the screen frame 46 is in a folded state and is located in the water. After the monitoring mechanism 45 captures a dead fish, the control support rod 47 moves upward relative to the screen frame 46, causing the support rod 47 to insert into the interior of the screen frame 46, thus opening the screen frame 46. Then, the screen frame 46 is controlled to intercept the dead fish. The screen frame 46 has a foldable structure. When not in use, it is in a folded state, reducing the contact area between the screen frame 46 and the water flow. This reduces the impact force of the flowing water on the screen frame 46, the lead screw 43, and the first guide rod 2 towards the water intake, thereby extending the service life of the first guide rod 2. At the same time, the folded state of the screen frame 46 can prevent algae and other organisms from floating into the screen frame 46, which could cause blockage and affect the interception effect over a long period of time.

[0041] like Figure 2 and Figure 5As shown, the interception component 4 further includes: a first spring 48 fixedly installed between the screen frame 46 and the support rod 47; and a baffle 49 fixedly installed on the connecting plate 42, the baffle 49 being used to prevent the support rod 47 and the screen frame 46 from moving upward together.

[0042] Specifically, in the initial state, the screen frame 46 is in a folded state, and the first spring 48 is in a stretched state. When operation is required, the second connecting rod 44 and the screen frame 46 are controlled to move downwards. Under the elastic force of the first spring 48, the support rod 47 moves upwards and inserts into the interior of the screen frame 46, causing the screen frame 46 to unfold as it moves downwards. After operation, the second connecting rod 44 and the screen frame 46 are controlled to move upwards. During the movement, the support rod 47 contacts the baffle 49 and is blocked by the baffle 49, keeping the support rod 47 stationary while the screen frame 46 continues to move upwards. Therefore, the support rod 47 moves out of the interior of the screen frame 46, causing the screen frame 46 to fold under the action of gravity. At this time, the first spring 48 extends. No additional device is needed to drive the screen frame 46 to unfold and fold, making it convenient to use.

[0043] like Figure 6 As shown, the interception component 4 also includes a fan blade 410 rotatably mounted on the side wall of the screen frame 46. The other side of the fan blade 410 is covered with a screen plate. The rotation of the fan blade 410 can cause water to flow into the screen frame 46.

[0044] Specifically, by setting the fan blades 410, during operation, the fan blades 410 are controlled to rotate, so that the water flows in from the inlet of the screen frame 46 and flows out from the fan blades 410, so that when the screen frame 46 is near the dead fish, the dead fish can be introduced into the screen frame 46, and it is ensured that the dead fish will not move out of the screen frame 46 during the movement. At the same time, the speed at which the dead fish enter the screen frame 46 can be accelerated.

[0045] like Figure 5 and Figure 6 As shown, the interception component 4 further includes: a slide rod 9 that is slidably mounted above the screen frame 46, with the support rod 47 being movably connected to the slide rod 9; a first switch 412 mounted on the slide rod 9, the first switch 412 being inserted into the interior of the screen frame 46 through a hole in the screen frame 46, the holes on both sides of the screen frame 46 being aligned, and the first switch 412 being used to control the alignment of the screen frame 46 and the guide tube 7, so that the ejection mechanism 6 can operate again.

[0046] Specifically, the contact surface between the insertion rod 411 and the support rod 47 is rough. When the support rod 47 slides out of the screen frame 46, the support rod 47 moves downward, causing the insertion rod 411 to move downward. The downward movement of the insertion rod 411 causes the first switch 412 to be inserted into the screen frame 46. After the insertion rod 411 contacts the upper surface of the screen frame 46, the insertion rod 411 causes the upper part of the screen frame 46 to move downward synchronously, causing the screen frame 46 to fold. At this time, the upper and lower parts of the screen frame 46 are connected. The support rod 47 continues to move until the support rod 47 moves out of the insertion rod 411. After the screen frame 46 is folded, if there are no dead fish in the screen frame 46, the first switch 412 is inserted into the hole below the screen frame 46. If dead fish are found inside the sieve frame 46, switch 412 is triggered. After switch 412 is triggered, the sieve frame 46 is unfolded and aligned with the guide tube 7 of the ejector mechanism 6 again. The ejector mechanism 6 is then controlled to perform suction and crushing operations again to prevent dead fish from being left behind. When the sieve frame 46 unfolds, the support rod 47 is inserted into the sieve frame 46 and pushes the insertion rod 411 upward relative to the sieve frame 46, causing switch 412 to move upward synchronously until switch 412 moves out of the sieve frame 46. The support rod 47 then connects with the insertion rod 411 and pushes the upper part of the sieve frame 46 upward relative to the lower part of the sieve frame 46 through the insertion rod 411, thus unfolding the sieve frame 46.

[0047] like Figures 3-7 As shown, the interception assembly 4 further includes: a warning light 413 mounted on the ejection mechanism 6; a second ratchet 414 rotatably mounted on the second connecting rod 44, with a torsion spring installed between the second ratchet 414 and the second connecting rod 44; a second switch 415 fixedly mounted on the second connecting rod 44, the second switch 415 being within the movement range of the second ratchet 414, and the second switch 415 being triggered to control the activation of the warning light 413; a pawl 416 rotatably mounted on the support rod 47, the pawl 416 being used to push the second ratchet 414 to rotate; and a telescopic rod 417 fixedly mounted on the second connecting rod 44, with a second check block 418 fixedly mounted above the telescopic rod 417, the second check block 418 being used to restrict the unidirectional rotation of the second ratchet 414.

[0048] Specifically, the telescopic pole 417 intermittently extends and retracts, in order to... Figure 6For example, the second ratchet 414, restricted by the second check block 418, can only rotate counterclockwise. When the support rod 47 moves downward relative to the screen frame 46, it drives the pawl 416 to move downward simultaneously. The downward movement of the pawl 416 can push the second ratchet 414 to rotate counterclockwise. The counterclockwise rotation of the second ratchet 414 causes the torsion spring to twist. Because the telescopic rod 417 intermittently extends and retracts, the second check block 418 intermittently moves up and down. When the second check block 418 is not in contact with the second ratchet 414, the second ratchet 414 can rotate a certain angle under the action of the torsion spring. If the probability of dead fish is low and the spring is strong, the ratchet 414 can rotate back a certain angle. If the ejection mechanism 6 is functioning normally, the telescopic rod 417 can move back and forth multiple times when the support rod 47 is not working. The second ratchet 414 returns to its original state under the action of the torsion spring. If the probability of dead fish is high or there is a problem with the ejection mechanism 6, the telescopic rod 417 will move downward again when the second ratchet 414 has not returned to its original state. The pawl 416 will push the second ratchet 414 to rotate counterclockwise again. This process continues until the second ratchet 414 contacts the second switch 415. After the second switch 415 is triggered, the warning light 413 will light up and an abnormal signal will be sent to the staff to facilitate quick troubleshooting.

[0049] like Figure 1 and Figure 8 As shown, a rangefinder 8 and a sliding rod 9 are fixedly installed on the first guide rod 2. A floating body 10 is slidably installed on the sliding rod 9. The first guide rod 2 and the second guide rod 5 are both slidably connected to the support column 1. The rangefinder 8 adjusts the position of the second guide rod 5 and the first guide rod 2 on the support column 1 by measuring the distance between itself and the floating body 10.

[0050] Specifically, the floating body 10 is made of materials such as foam and rubber that can float on the water surface. It is located below the rangefinder 8. In use, the rangefinder 8 measures the distance between itself and the floating body 10, and controls the first guide rod 2 and the second guide rod 5 to move up and down relative to the support column 1 based on the size of the distance. This allows the interception component 4, the ejection mechanism 6 and the electric grid 3 to adjust their height according to the water level, making them more practical.

[0051] like Figure 8 and Figure 9 As shown, it also includes: a first connecting rope 11 passing through several of the first connecting rods 41 and the electric grid 3, the first connecting rope 11 being slidably connected to the first connecting rods 41 and the electric grid 3; a fixed column 12 placed on one side of the support column 1; a floating plate 14, on which a second connecting rope 13 is fixedly installed, the second connecting rope 13 passing through the fixed column 12 and connecting to the first connecting rope 11.

[0052] Specifically, during flooding, the increased water flow velocity within the reservoir increases the impact force on interception component 4 and the electric grid 3, thus increasing the probability of the first guide rod 2 breaking; Figure 7 Assuming the water flows from front to back, the floating plate 14 is located in the water surface and is subjected to the force of the water flow. The floating plate 14 generates a backward force, so the second pull rope in front is pulled by the floating plate 14 and generates a forward force on the first pull rope. This reduces the backward force on the interception component 4 and the electric grid 3 on the first pull rope, reduces the probability of the first guide rod 2 breaking, and extends the service life of the device.

[0053] Working principle: Before operation, support columns 1 are erected on both banks of the river or reservoir. During operation, electricity is supplied to the electric grids 3. After power is supplied, an electric field is formed between the electric grids 3. When live fish approach, they will feel the stimulation of the current, thus causing them to move away from the water intake, thereby achieving the effect of intercepting live fish. When the monitoring device 45 captures images of dead fish about to float on the water surface or dead fish about to rise from the water, it controls the first connecting rod 41 to slide left and right relative to the first guide rod 2, while simultaneously controlling the screw 43 to rotate so that the second connecting rod 44 and the screen frame 46 move downwards synchronously until the screen frame 46... The middle section is at the same height as the dead fish. The first connecting rod 41 slides left and right, causing the screen frame 46 to move synchronously left and right until the screen frame 46 is behind the dead fish. After the dead fish moves into the screen frame 46, the control screw 43 rotates, causing the second connecting rod 44 and the screen frame 46 to move upwards until the screen frame 46 pulls the dead fish out of the water, thus achieving the action of intercepting dead fish. In daily use, when the impeller 65 is blown by wind from front to back, it can drive the rotating rod 64 and the first ratchet 66 to rotate clockwise. The clockwise rotation of the first ratchet 66 causes the push plate 62 to move from left to right, thus... When spring 63 is compressed, during operation, after dead fish are intercepted in the screen frame 46, the control screw 43 rotates, causing the screen frame 46 and the dead fish to move upwards until the screen frame 46 is at the same level as the guide tube 7. Then, the ejection mechanism 6 and the guide tube 7 are moved left and right until the guide tube 7 is aligned with the screen frame 46. Then, the door at the lower end of the box 61 of the ejection mechanism 6 is opened, and the suction pump is activated to suck the dead fish in the screen frame 46 into the box 61 through the guide tube 7. Then, the door at the lower end of the box 61 is closed, and the box 61 and the dead fish are moved to the left. During the movement, the first check valve is activated. Block 67 contacts the fixed rod 69. Since the fixed rod 69 remains stationary, the first check block 67 is pushed to the right until the first check block 67 is no longer in contact with the first ratchet 66. At this time, the third spring 68 is compressed, and the push plate 62 is pushed by the second spring 63 to slide to the left. The push plate 62 slides and pushes the dead fish to move synchronously until the dead fish is ejected from the box 61 and falls to the shore. Then, the box 61 is controlled to move to the right until the first check block 67, under the action of the third spring 68, engages with the first ratchet 66 again, thus completing the action of ejecting the dead fish to the shore.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fish-blocking device at a water intake, comprising two support columns (1), a first guide rod (2), and several electric grids (3), wherein the first guide rod (2) is installed between the two support columns (1), and the several electric grids (3) are evenly distributed on the first guide rod (2), wherein the electric grids (3) form an electric field after being energized to prevent fish from approaching, characterized in that, It also includes: an interception assembly (4) installed on the first guide rod (2), the interception assembly (4) including: a sieve frame (46) for blocking animal carcasses and a monitoring mechanism (45) for observing animal carcasses. The interception component (4) includes: A number of connecting rods (41) are slidably mounted on the first guide rod (2), and the first connecting rods (41) and the electric grid (3) are alternately distributed on the first guide rod (2); Rotate the connecting plate (42) installed below the first connecting rod (41); Two lead screws (43) are rotatably mounted on the connecting plate (42); A second connecting rod (44) is installed on the lead screw (43), the screen frame (46) is installed on the two second connecting rods (44), and the monitoring mechanism (45) is installed on the second connecting rod (44); The fish-blocking device at the water intake also includes: The second guide rod (5) is installed on the support column (1); A catapult mechanism (6) is slidably mounted on the second guide rod (5). A guide tube (7) is fixedly installed below the catapult mechanism (6). The catapult mechanism (6) can communicate with the screen frame (46) through the guide tube (7). The sieve frame (46) adopts a folding structure. A support rod (47) is slidably installed on the sieve frame (46). After the support rod (47) slides down out of the interior of the sieve frame (46), the sieve frame (46) folds. After the support rod (47) slides up into the interior of the sieve frame (46), the sieve frame (46) opens. The interception component (4) also includes: A first spring (48) is fixedly installed between the screen frame (46) and the support rod (47). A baffle (49) is fixedly installed on the connecting plate (42), and the baffle (49) is used to prevent the support rod (47) from moving upward together with the screen frame (46); The interception assembly (4) also includes a fan blade (410) rotatably mounted on the side wall of the screen frame (46), with a screen plate covering the other side of the fan blade (410), and the rotation of the fan blade (410) can cause water to flow into the screen frame (46); The interception component (4) also includes: The insert rod (411) is slidably installed above the screen frame (46), and the support rod (47) is movably inserted into the insert rod (411); A first switch (412) is installed on the insert rod (411). The first switch (412) is inserted into the inside of the screen frame (46) through the hole in the screen frame (46). The holes on both sides of the screen frame (46) are aligned downwards. The first switch (412) is used to control the alignment of the screen frame (46) and the guide tube (7). The ejection mechanism (6) works again. The interception component (4) also includes: Warning light (413) installed on the ejection mechanism (6); Rotate the second ratchet (414) mounted on the second connecting rod (44), and a torsion spring is installed between the second ratchet (414) and the second connecting rod (44); A second switch (415) is fixedly installed on the second connecting rod (44). The second switch (415) is located within the movement range of the second ratchet (414). When the second switch (415) is triggered, it can control the warning light (413) to start. Rotate the pawl (416) mounted on the support rod (47), the pawl (416) is used to push the second ratchet (414) to rotate; A telescopic rod (417) is fixedly installed on the second connecting rod (44), and a second check block (418) is fixedly installed above the telescopic rod (417). The second check block (418) is used to restrict the second ratchet (414) from rotating in one direction.

2. The fish-blocking device at a water intake according to claim 1, characterized in that: The ejection mechanism (6) includes: A box (61) for containing dead fish is connected to the conduit. The side walls and lower end of the box (61) are equipped with rotating doors for the dead fish to exit from the box (61). A push plate (62) is slidably installed inside the housing (61), and a second spring (63) is installed between the push plate (62) and the housing (61). Rotate the rotating rod (64) installed inside the housing (61). The rotating rod (64) is threadedly connected to the push plate (62). An impeller (65) is installed at one end of the rotating rod (64). A ratchet (66) is installed at one end of the rotating rod (64); A first check block (67) is slidably mounted on the housing (61). The first check block (67) is used to restrict the first ratchet (66) from rotating in one direction. A third spring (68) is installed between the first check block (67) and the housing (61). A fixing rod (69) is fixedly installed on the second guide rod (5), and the fixing rod (69) is located within the movement range of the first check block (67).

3. The fish-blocking device at a water intake according to claim 2, characterized in that: A rangefinder (8) and a slide bar (9) are fixedly installed on the first guide rod (2). A float (10) is slidably installed on the slide bar (9). The first guide rod (2) and the second guide rod (5) are slidably connected to the support column (1). The rangefinder (8) adjusts the position of the second guide rod (5) and the first guide rod (2) on the support column (1) by measuring the distance between itself and the float (10).

4. A fish-blocking device at a water intake according to claim 3, characterized in that: Also includes: A first connecting rope (11) passes through several of the first connecting rods (41) and the electric grid (3), and the first connecting rope (11) is slidably connected to the first connecting rods (41) and the electric grid (3); Two fixed columns (12) are placed on one side of the support column (1); A floating board (14) is fixedly installed with a second connecting rope (13), which passes through the fixed post (12) and is connected to the first connecting rope (11).

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