A buoyancy self-control fish collecting hopper device

Abstract

The present invention discloses a buoyancy self-control fish collecting hopper device in the technical field of fish migration, including a fish collecting mechanism and a fish collecting section of a fishway. The fish collecting mechanism includes a cylinder wall, a flow guiding cone, a support frame and a force transmitting pull rod. The cylinder wall is provided with a plurality of water outlet holes. The inner wall of the cylinder wall is connected to the support frame. The support frame is connected to the force transmitting pull rod. The flow guiding cone is vertically slidably connected to the force transmitting pull rod. The lower end of the force transmitting pull rod is fixedly connected with a first mounting plate. The side wall of the first mounting plate is fixedly connected with a mounting ring. The upper end of the mounting ring is fixedly connected with a water stop rubber. The lower end of the cylinder wall cooperates with the water stop rubber to form a sealed fish collecting volume. The cylinder wall can reach the lower end of the fish collecting section of the fishway from the upper end of the fish collecting section of the fishway without squeezing the fish inside the fish collecting section of the fishway and fit the inner wall of the fish collecting section of the fishway; so that it is no longer necessary to change the position of the fish collecting section of the fishway during the fish collecting process, and thus after the fish collecting is completed, it is no longer necessary to re-arrange the fish collecting section of the fishway.

Description

Technical Field

[0001] The present invention relates to the technical field of fish migration, and particularly to a buoyancy self-controlled fish collecting hopper device. Background Art

[0002] At present, after the construction of water conservancy and hydropower projects, fish cannot migrate normally; in order to protect the normal reproduction and survival of protected fish, fishways are mostly built to meet the fish migration; among them, there is a method of trapping fish through the fishway and then transporting the fish manually to make the fish migrate.

[0003] Existing fishways, whether they are concrete-cast fixed or floating fishways, do not have a technically mature fish collecting device to achieve harmless collection of protected fish, making the fish unable to migrate according to the designed plan and unable to continuously meet the requirements of fish protection in the environmental protection field. Moreover, during the fish collection process of existing fish collecting devices, most of them require the fish collecting section in the fishway to cooperate by detaching from the water surface and other means, so that after each fish collection, the fishway needs to be reset, greatly increasing the workload.

[0004] Based on this, the present invention designs a buoyancy self-controlled fish collecting hopper device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a buoyancy self-controlled fish collecting hopper device to solve the problems mentioned in the above background art, that is, existing fishways, whether they are concrete-cast fixed or floating fishways, do not have a technically mature fish collecting device to achieve harmless collection of protected fish, making the fish unable to migrate according to the designed plan and unable to continuously meet the requirements of fish protection in the environmental protection field. Moreover, during the fish collection process of existing fish collecting devices, most of them require the fish collecting section in the fishway to cooperate by detaching from the water surface and other means, so that after each fish collection, the fishway needs to be reset, greatly increasing the workload.

[0006] To achieve the above purpose, the present invention provides the following technical solution: a buoyancy self-controlled fish collecting hopper device, including a fish collecting mechanism and a fish collecting section of the fishway. The fish collecting mechanism includes a barrel wall, a guide cone, a support frame, and a force transmission pull rod. The barrel wall is provided with a plurality of water outlet holes. The inner wall of the barrel wall is connected to the support frame. The support frame is connected to the force transmission pull rod. The guide cone is vertically slidably connected to the force transmission pull rod. The lower end of the force transmission pull rod is fixedly connected to a first mounting plate. The side wall of the first mounting plate is fixedly connected to a mounting ring. The upper end of the mounting ring is fixedly connected to a water stop rubber. The lower end of the barrel wall cooperates with the water stop rubber to form a sealed fish collecting volume. The barrel wall can reach the lower end of the fish collecting section of the fishway from the upper end of the fish collecting section of the fishway without squeezing the fish inside the fish collecting section of the fishway and fit the inner wall of the fish collecting section of the fishway.

[0007] As a further solution of the present invention, the cylinder wall includes six cylinder blocks equally divided from a complete conical cylinder, and a plurality of the water outlet holes are respectively arranged on the cylinder blocks. The cylinder blocks are hinged to the force transmission pull rod through a support frame.

[0008] As a further solution of the present invention, the support frame includes a first chute, which is opened on the force transmission pull rod. A first sliding ring and a second sliding ring are vertically and slidably connected to the upper and lower ends of the first chute in a sealed manner. A first spring is fixedly connected between the first sliding ring and the second sliding ring. Each of the cylinder blocks is rotatably connected with a first connecting rod, and each first connecting rod is slidably connected to the first sliding ring. A second connecting rod is rotatably connected to the lower side wall of each first sliding ring, and each second connecting rod is rotatably connected to the second sliding ring.

[0009] As a further solution of the present invention, a clamping groove is opened at the lower end of the side wall of each cylinder block away from the force transmission pull rod. A second spring is fixedly connected between the lower end of the diversion cone and the upper end of the first mounting plate. Mounting holes are horizontally penetrated through the left and right side walls of the mounting ring, and a clamping buckle is elastically and rotatably connected in the mounting holes. The clamping buckle can squeeze the clamping groove.

[0010] As a further solution of the present invention, the fishway fish collection section includes a plurality of vertically arranged arc-shaped plates. The plurality of arc-shaped plates are arranged at equal intervals along the same circular cylinder track in sequence. A connecting rod is fixedly connected to the lower end of each arc-shaped plate. The lower ends of the connecting rods are fixedly connected together to form a mounting table. A sliding rod is vertically penetrated and slidably connected to the mounting table. A pressing plate is fixedly connected to the upper end of the sliding rod. A groove corresponding to the shape of the lower end of the pressing plate is opened at the upper end of the mounting table. A first isolation mechanism is arranged at the upper end of the arc-shaped plate, and a second isolation mechanism is arranged at the lower end of the arc-shaped plate. Both the first isolation mechanism and the second isolation mechanism can prevent fish from escaping without hindering the vertical displacement of the fish collection mechanism.

[0011] As a further solution of the present invention, mounting grooves are opened on the same straight side wall in the circumferential direction of the plurality of arc-shaped plates. A plurality of vertically arranged clamping blocks are horizontally and elastically slidably connected in the mounting grooves, and chamfers are opened at the upper ends of the clamping blocks.

[0012] As a further solution of the present invention, the first isolation mechanism includes a partition plate, which is sleeved on the upper end of the cylinder block and the force transmission pull rod. A first sector-shaped baffle fitting the outer wall of the pressing plate is arranged at the upper end of each arc-shaped plate. A first wedge-shaped plate is fixedly connected to the lower end of each first sector-shaped baffle. The wedge surface of the first wedge-shaped plate faces the sliding rod. The first wedge-shaped plate penetrates through the arc-shaped plate and is elastically slidably connected to the arc-shaped plate.

[0013] As a further solution of the present invention, the second isolation mechanism includes a plurality of second fan-shaped plates that fit the sliding rod, and the plurality of second fan-shaped plates are elastically slidably connected to the lower end of the arc plate. The upper end of the second fan-shaped plate close to the sliding rod is provided with a chamfer, and the lower end of the arc plate is fixedly connected with a second wedge block, and the second wedge block is provided with a second sliding groove that vertically penetrates the second fan-shaped plate and the second wedge block, and the second sliding groove is used to avoid the connecting rod, and the lower end of the pressure plate is in the shape of an inverted cone.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention uses the guide cone and the water cushion to dissipate energy, so that the water flows gently into the fish transport vehicle to achieve non-injury unloading of the protected fish. At the same time, the cylinder wall can reach the lower end of the fishway fish gathering section from the upper end of the fishway fish gathering section without squeezing the fish inside the fishway fish gathering section and fit the inner wall of the fishway fish gathering section, and then the fish in the fishway fish gathering section can be salvaged vertically upward along the inner wall of the fishway fish gathering section from bottom to top, so that the position of the fishway fish gathering section does not need to be changed during the fish gathering process, and further, after the fish gathering is completed, the fishway fish gathering section does not need to be rearranged.

[0016] 2. The present invention uses six cylinder blocks equally divided from a complete cone cylinder to move away from each other during the sinking process, further splitting the complete cone cylinder and making it impossible to form a complete cavity, thereby accelerating the separation of gas in the equipment, reducing the buoyancy work during the sinking process of the equipment, accelerating the sinking of the equipment, and improving work efficiency.

[0017] 3. The present invention squeezes the card slot by buckling during the process of catching and transporting fish, thereby ensuring that the cylinder block can maintain a complete cone state during the process of catching and transporting fish, so that the device can transport fish stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a side cross-sectional schematic diagram of a fish gathering mechanism;

[0020] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0021] Figure 4 It is a side section schematic diagram of the fish gathering section of the fishway;

[0022] Figure 5 It is a top-down schematic diagram of the fish gathering section of the fishway;

[0023] Figure 6 for Figure 5 A magnified schematic diagram of the structure at B in the middle;

[0024] Figure 7is Figure 5 Side sectional schematic diagram of

[0025] Figure 8 is Figure 7 Enlarged schematic diagram of the structure at position C in

[0026] In the attached drawings, the components represented by each label are listed as follows:

[0027] Force transmission pull rod 11, first mounting plate 12, mounting ring 13, water stop rubber 14, flow guiding cone 2, cylinder block 41, first chute, first sliding ring 52, second sliding ring 53, first spring 54, first connecting rod 55, second connecting rod 56, clamping groove 61, second spring 62, mounting hole 63, buckle 64, arc plate 71, connecting rod 72, mounting table 73, sliding rod 74, pressing plate 75, mounting groove 81, clamping block 82, partition plate 91, first sector baffle 92, first wedge plate 93, second sector plate 101, second wedge block 102, second chute 103. Detailed implementation mode

[0028] Please refer to Figure 1-8 , the present invention provides a technical solution: a buoyancy self - controlled fish - collecting hopper device, including a fish - collecting mechanism and a fish - collecting section of the fishway. The fish - collecting mechanism includes a cylinder wall, a flow guiding cone 2, a support frame and a force transmission pull rod 11. The cylinder wall is provided with a plurality of water outlet holes. The inner wall of the cylinder wall is connected to the support frame. The support frame is connected to the force transmission pull rod 11. The flow guiding cone 2 is vertically slidably connected to the force transmission pull rod 11. The lower end of the force transmission pull rod 11 is fixedly connected to a first mounting plate 12. The side wall of the first mounting plate 12 is fixedly connected to a mounting ring 13. The upper end of the mounting ring 13 is fixedly connected to a water stop rubber 14. The lower end of the cylinder wall cooperates with the water stop rubber 14 to form a sealed fish - collecting volume. The cylinder wall can reach the lower end of the fish - collecting section of the fishway from the upper end of the fish - collecting section of the fishway without squeezing the fish inside the fish - collecting section of the fishway and fit the inner wall of the fish - collecting section of the fishway.

[0029] During operation, for the non-fishway fish-collecting section of the device, the lifting equipment sling directly hoists the force-transferring tie rod 11 to lift the device above the fishway fish-collecting section. Then, above the fishway fish-collecting section, the force-transferring tie rod 11 is continuously lowered under the action of gravity. During this process, the cylinder wall can reach the lower end of the fishway fish-collecting section from the upper end of the fishway fish-collecting section without squeezing the fish inside the fishway fish-collecting section and fit the inner wall of the fishway fish-collecting section. Next, the lifting equipment sling hoists the force-transferring tie rod 11 upward, causing the cylinder wall to move vertically upward along the inner wall of the fishway fish-collecting section. At the same time, the fish in the fishway fish-collecting section cooperate with the lower end of the cylinder wall and the water-stop rubber 14 to form a sealed fish-collecting volume, and all the fish in the fishway fish-collecting section are fished into the cylinder wall. Finally, the lifting equipment sling rotates the device to the unloading station, aligns with the fish-carrying vehicle (with a pre-installed water cushion layer of a certain depth in the vehicle) and slowly lowers it. After the cylinder wall contacts the vehicle, the cylinder wall stops descending, and the flow guide cone and the mounting ring 13 continue to descend under their own weight and water pressure, and the device opens until the unloading is completed. During this period, the fish and water in the device, under the action of the flow guide cone and with the energy dissipation of the water cushion, gently flow into the fish-carrying vehicle to achieve harmless unloading of the protected fish.

[0030] Through the flow guide cone and the water cushion for energy dissipation, the present invention gently flows into the fish-carrying vehicle to achieve harmless unloading of the protected fish. At the same time, the cylinder wall can reach the lower end of the fishway fish-collecting section from the upper end of the fishway fish-collecting section without squeezing the fish inside the fishway fish-collecting section and fit the inner wall of the fishway fish-collecting section, and then vertically lift the fish in the fishway fish-collecting section upward along the inner wall of the fishway fish-collecting section from bottom to top, so that it is no longer necessary to change the position of the fishway fish-collecting section during the fish-collecting process. Furthermore, after the fish-collecting is completed, it is no longer necessary to re-arrange the fishway fish-collecting section.

[0031] As a further solution of the present invention, the cylinder wall includes six cylinder blocks 41 equally divided from a complete conical cylinder, and a plurality of the water outlet holes are respectively arranged on the cylinder blocks 41, and the cylinder blocks 41 are hinged to the force-transferring tie rod 11 through a support frame.

[0032] During operation, when it enters the water, in the initial state, the six cylinder blocks 41 are combined into a complete conical cylinder. Since there is a cavity inside the conical cylinder, buoyancy is generated in the conical cylinder, causing the sinking speed of the conical cylinder to be less than that of the flow guiding cone and the force transmission tie rod 11. As a result, the entire cylinder wall disengages from the force transmission tie rod 11, and the conical cylinder moves upward relative to the force transmission tie rod 11. Since the cylinder blocks 41 are hinged to the force transmission tie rod 11 through support frames, while the cylinder blocks 41 move upward relative to the force transmission tie rod 11, the cylinder blocks 41 start to move away from the force transmission tie rod 11 in the radial direction, causing the individual cylinder blocks 41 to move away from each other. Further, the complete conical cylinder is disassembled and cannot form a complete cavity, accelerating the separation of the gas inside the equipment, reducing the buoyancy work during the sinking process of the equipment, accelerating the sinking of the equipment, and improving work efficiency. When the force transmission tie rod 11 descends to the lowest position, the cylinder blocks 41 continue to descend. The corresponding cylinder blocks 41 start to approach the force transmission tie rod 11 in the radial direction and reconstruct a conical cylinder again. At the same time, it cooperates with the water stop rubber 14 to form a sealed fish collection volume. Then, during the process of lifting the fish on the cylinder wall, since the upward force is provided by the hoist of the lifting equipment to lift the force transmission tie rod 11 upward, further, the conical cylinder moves upward by being lifted by the force transmission tie rod 11, so that the conical cylinder does not move upward relative to the force transmission tie rod 11, and the conical cylinder can cooperate with the water stop rubber 14 to form a sealed fish collection volume for fishing.

[0033] In the present invention, the six cylinder blocks 41 equally divided from a complete conical cylinder move away from each other during the sinking process, further disassembling the complete conical cylinder and unable to form a complete cavity, accelerating the separation of the gas inside the equipment, reducing the buoyancy work during the sinking process of the equipment, accelerating the sinking of the equipment, and improving work efficiency.

[0034] As a further solution of the present invention, the support frame includes a first sliding groove opened on the force transmission tie rod 11. The upper and lower ends of the first sliding groove are closed and vertically slidably connected with a first sliding ring 52 and a second sliding ring 53. A first spring 54 is fixedly connected between the first sliding ring 52 and the second sliding ring 53. Each of the cylinder blocks 41 is rotatably connected with a first connecting rod 55, and each of the first connecting rods 55 is slidably connected with the first sliding ring 52. The lower side walls of the first sliding rings 52 are rotatably connected with second connecting rods 56, and each of the second connecting rods 56 is rotatably connected with the second sliding ring 53.

[0035] During operation, under the elastic force of the first spring 54, the first sliding ring 52 and the second sliding ring 53 tend to move away from each other. As a result, the first connecting rod 55 and the second connecting rod 56 tend to have the largest included angle at the part of the connection point close to the force transmission pull rod 11, causing the part of the first connecting rod 55 away from the force transmission pull rod 11 at the connection point to tend to have the largest downward inclination, making the cylinder block 41 tend to move downward and keeping the six cylinder blocks 41 in a combined state. When the device enters the water and the conical cylinder formed by the six cylinder blocks 41 moves upward under the buoyancy force, the cylinder block 41 moves upward, driving the end of the first connecting rod 55 away from the force transmission pull rod 11 to move upward. As a result, the second sliding ring 53 moves upward against the elastic force of the first spring 54. At the same time, the first connecting rod 55 rotates and squeezes the cylinder block 41 away from the force transmission pull rod 11, causing the six cylinder blocks 41 to separate from each other.

[0036] As a further solution of the present invention, a card slot 61 is provided at the lower end of the side wall of the cylinder block 41 away from the force transmission pull rod 11. A second spring 62 is fixedly connected between the lower end of the guide cone 2 and the upper end of the first mounting plate 12. Mounting holes 63 are horizontally penetrated through the left and right side walls of the mounting ring 13. A snap 64 is elastically rotatably connected in the mounting hole 63, and the snap 64 can squeeze the card slot 61.

[0037] During operation, when the device sinks, the upper end of the guide cone 2 is not under pressure. Under the action of the elastic member in the snap 64, the snap 64 does not squeeze the card slot 61, and at this time, the cylinder block 41 can move upward relative to the force transmission pull rod 11. When the device moves upward, in the water, the guide cone 2 moves upward, and the upper end of the guide cone 2 is subjected to a downward squeezing force of water. Outside the water, the upper end of the guide cone 2 is subjected to the downward gravity of water and fish. When the upper end of the guide cone 2 is subjected to a downward force, the guide cone 2 moves downward relative to the force transmission pull rod 11, thereby squeezing the snap 64 closer to the force transmission pull rod 11, causing the snap 64 to rotate and squeezing the card slot 61, ensuring that the cylinder block 41 can maintain a complete conical cylinder state during the process of the device fishing and transporting fish, enabling the device to stably transport fish.

[0038] In the present invention, during the process of the device fishing and transporting fish, the snap 64 squeezes the card slot 61, ensuring that the cylinder block 41 can maintain a complete conical cylinder state during the process of the device fishing and transporting fish, enabling the device to stably transport fish.

[0039] As a further solution of the present invention, the fishway fish-collecting section includes a plurality of vertically arranged arc-shaped plates 71. The plurality of arc-shaped plates 71 are arranged at equal intervals in sequence along the same cylindrical trajectory. The lower ends of the arc-shaped plates 71 are all fixedly connected with connecting rods 72. The lower ends of the connecting rods 72 are jointly and fixedly connected with an installation platform 73. The installation platform 73 is vertically penetrated and slidably connected with a sliding rod 74. The upper end of the sliding rod 74 is fixedly connected with a pressing plate 75. A groove corresponding to the shape of the lower end of the pressing plate 75 is formed at the upper end of the installation platform 73. A first isolation mechanism is arranged at the upper end of the arc-shaped plate 71, and a second isolation mechanism is arranged at the lower end of the arc-shaped plate 71. Both the first isolation mechanism and the second isolation mechanism can prevent fish from escaping without hindering the vertical displacement of the fish-collecting mechanism.

[0040] During operation, when the fish-collecting mechanism sinks, the cylinder block 41 opens. Then, the first mounting plate 12 moves downward to squeeze the pressing plate 75, causing the pressing plate 75 to move downward with the first mounting plate 12 until the pressing plate 75 is embedded in the installation platform 73. At this time, the first mounting plate 12 reaches the upper end of the installation platform 73. At the same time, during this process, the opened cylinder block 41 moves downward along the outer side wall of the arc-shaped plate 71 and does not enter the interior of the fishway fish-collecting section. The first connecting rod 55 and the second connecting rod 56 move downward from the interval between the arc-shaped plates 71 until the lower ends of the arc-shaped plates 71. The cylinder block 41 merges into a complete conical cylinder below the cylinder block 41 through the space between the connecting rods 72 (the outer diameter of the conical cylinder wall is the same as the inner diameter of the cylinder formed by the arc-shaped plates 71). Then, when the fish-collecting mechanism is lifted, the conical cylinder moves upward along the inner wall of the arc-shaped plate 71 to catch fish.

[0041] In the present invention, by moving the opened cylinder block 41 downward along the outer side wall of the arc-shaped plate 71 without entering the interior of the fishway fish-collecting section, and then merging into a complete conical cylinder at the lower end of the arc-shaped plate 71, the conical cylinder can move upward along the inner wall of the arc-shaped plate 71 to catch fish during the upward lifting process. The process is simple and reliable, with high fishing efficiency, no fish leakage, and not easy to cause extrusion to the fish.

[0042] As a further solution of the present invention, mounting grooves 81 are formed on the same straight-side side walls of the plurality of arc-shaped plates 71 in the circumferential direction. A plurality of vertically arranged clamping blocks 82 are horizontally and elastically slidably connected in the mounting grooves 81. Chamfers are formed at the upper ends of the clamping blocks 82.

[0043] During operation, when the first connecting rod 55 and the second connecting rod 56 move downward from the interval between the arc-shaped plates 71, the first connecting rod 55 and the second connecting rod 56 downwardly squeeze the chamfers at the upper ends of the clamping blocks 82, causing the clamping blocks 82 to retract into the arc-shaped plates 71, leaving the interval between the arc-shaped plates 71. When the first connecting rod 55 and the second connecting rod 56 do not move downward from the interval between the arc-shaped plates 71, the clamping blocks 82 block the interval between the arc-shaped plates 71 to prevent fish from escaping from the interval.

[0044] In the present invention, by adding a clamping block 82, when the first connecting rod 55 and the second connecting rod 56 do not move downward due to the gap between the arc-shaped plates 71, the clamping block 82 blocks the gap between the arc-shaped plates 71, preventing fish from escaping through the gap.

[0045] As a further solution of the present invention, the first isolation mechanism includes a partition plate 91. The partition plate 91 is arranged at the upper end of the cylinder block 41 and sleeved with the force transmission pull rod 11. At the upper ends of the arc-shaped plates 71, there are first sector-shaped baffles 92 that fit against the outer wall of the pressing plate 75. At the lower ends of the first sector-shaped baffles 92, there are first wedge-shaped plates 93 fixedly connected. The wedge surface of the first wedge-shaped plate 93 faces the sliding rod 74. The first wedge-shaped plate 93 penetrates through the arc-shaped plate 71 and is elastically slidably connected with the arc-shaped plate 71.

[0046] During operation, when the first mounting plate 12 moves downward and drives the pressing plate 75 to move downward, the partition plate 91 is blocked by the first sector-shaped baffle 92 and stops at the upper end of the first sector-shaped baffle 92, blocking the vacancy formed at the upper end of the arc-shaped plate 71 due to the downward movement of the pressing plate 75. When the fish collecting mechanism moves upward, the upper end of the cylinder block 41 squeezes the wedge surface of the first wedge-shaped plate 93, causing the first wedge-shaped plate 93 to drive the first sector-shaped baffle 92 away from the sliding rod 74, creating a vacancy at the upper end of the arc-shaped plate 71, enabling the fish collecting mechanism to smoothly leave the fish collecting section of the fishway. At the same time, during the process of the fish collecting mechanism leaving the fish collecting section of the fishway, the force transmission pull rod 11 is reinserted into the partition plate 91, causing the partition plate 91 to return to the upper end of the cylinder block 41, blocking the upper end of the cylinder block 41 and preventing fish from escaping from the upper end of the cylinder block 41.

[0047] As a further solution of the present invention, the second isolation mechanism includes a plurality of second sector-shaped plates 101 that fit against the sliding rod 74. The plurality of second sector-shaped plates 101 are respectively elastically slidably connected to the lower ends of the arc-shaped plates 71. At the upper ends of the sides of the second sector-shaped plates 101 close to the sliding rod 74, there are chamfers. At the lower ends of the arc-shaped plates 71, there are second wedge-shaped blocks 102 fixedly connected. The second wedge-shaped blocks 102 are respectively provided with second sliding grooves 103 that vertically penetrate through the second sector-shaped plates 101 and the second wedge-shaped blocks 102. The second sliding grooves 103 are used to avoid the connecting rod 72. The lower end of the pressing plate 75 is in the shape of an inverted cone.

[0048] During operation, when the pressing plate 75 moves downward, the conical tip at the lower end of the inverted cone of the pressing plate 75 is inserted into the chamfer at the upper end of the second sector-shaped plate 101, separating the second sector-shaped plate 101 from the sliding rod 74 by extrusion and causing the second sector-shaped plate 101 to move away from the sliding rod 74. Then, the pressing plate 75 passes over the second sector-shaped plate 101 and reaches the upper end of the mounting table 73. When the pressing plate 75 moves upward together with the fish collecting mechanism, the upper end of the cylinder block 41 squeezes the lower wedge surface of the second wedge-shaped block 102, causing the second sector-shaped plate 101 to move away from the sliding rod 74, further enabling the pressing plate 75 to move upward together with the fish collecting mechanism over the second sector-shaped plate 101.

Claims

1. A buoyancy self-controlled fish collecting hopper device, characterized in that: The fish-collecting mechanism and the fish-collecting section of the fishway. The fish-collecting mechanism includes a barrel wall, a flow guide cone (2), a support frame, and a force-transferring pull rod (11). The barrel wall is provided with a plurality of water outlet holes. The inner wall of the barrel wall is connected to the support frame, the support frame is connected to the force-transferring pull rod (11), the flow guide cone (2) is vertically slidably connected to the force-transferring pull rod (11), the lower end of the force-transferring pull rod (11) is fixedly connected to a first mounting plate (12), a mounting ring (13) is fixedly connected to the side wall of the first mounting plate (12), a water-stop rubber (14) is fixedly connected to the upper end of the mounting ring (13), and the lower end of the barrel wall cooperates with the water-stop rubber (14) to form a sealed fish-collecting volume. The barrel wall can reach the lower end of the fish-collecting section of the fishway from the upper end of the fish-collecting section of the fishway without squeezing the fish inside the fish-collecting section of the fishway and fit the inner wall of the fish-collecting section of the fishway. The barrel wall includes six barrel blocks (41) equally divided from a complete conical barrel. A plurality of the water outlet holes are respectively arranged on the barrel blocks (41), and the barrel blocks (41) are hinged to the force-transferring pull rod (11) through the support frame. The support frame includes a first sliding groove opened on the force-transferring pull rod (11). A first sliding ring (52) and a second sliding ring (53) are vertically slidably connected to the upper and lower ends of the first sliding groove in a closed manner. A first spring (54) is fixedly connected between the first sliding ring (52) and the second sliding ring (53). A first connecting rod (55) is rotatably connected to each of the barrel blocks (41), and each of the first connecting rods (55) is slidably connected to the first sliding ring (52). A second connecting rod (56) is rotatably connected to the lower side wall of each of the first sliding rings (52), and each of the second connecting rods (56) is rotatably connected to the second sliding ring (53).

2. The buoyancy self-control fish collecting hopper device according to claim 1, characterized in that: A clamping groove (61) is opened at the lower end of the side wall of each of the barrel blocks (41) away from the force-transferring pull rod (11). A second spring (62) is fixedly connected between the lower end of the flow guide cone (2) and the upper end of the first mounting plate (12). Mounting holes (63) are horizontally penetrated through the left and right side walls of the mounting ring (13), and a clamping buckle (64) is elastically rotatably connected in the mounting holes (63). The clamping buckle (64) can squeeze the clamping groove (61).

3. The buoyancy self-controlled fish collecting hopper device according to claim 2, wherein: The fish-collecting section of the fishway includes a plurality of vertically arranged arc-shaped plates (71). The plurality of arc-shaped plates (71) are arranged at equal intervals along the same cylindrical track in sequence. Connecting rods (72) are fixedly connected to the lower ends of the arc-shaped plates (71). The lower ends of the connecting rods (72) are jointly fixedly connected to a mounting table (73). A sliding rod (74) is vertically penetrated and slidably connected to the mounting table (73). A pressing plate (75) is fixedly connected to the upper end of the sliding rod (74). A groove corresponding to the shape of the lower end of the pressing plate (75) is opened at the upper end of the mounting table (73). A first isolation mechanism is arranged at the upper end of the arc-shaped plate (71), and a second isolation mechanism is arranged at the lower end of the arc-shaped plate (71). Both the first isolation mechanism and the second isolation mechanism can prevent fish from escaping without hindering the vertical displacement of the fish-collecting mechanism.

4. The buoyancy self-control fish collecting hopper device according to claim 3, characterized in that: A plurality of the arc-shaped plates (71) are each provided with a mounting groove (81) along the same straight-side side wall in the circumferential direction. A plurality of vertically arrayed clamping blocks (82) are each horizontally and elastically slidably connected in the mounting groove (81), and chamfers are provided at the upper ends of the clamping blocks (82).

5. The buoyancy self-controlled fish collecting hopper device according to claim 4, characterized in that: The first isolation mechanism includes a partition plate (91). The partition plate (91) is arranged at the upper end of the cylindrical block (41) and sleeved on the force-transmitting pull rod (11). First sector-shaped baffles (92) that fit against the outer wall of the pressing plate (75) are provided at the upper ends of the arc-shaped plates (71). First wedge-shaped plates (93) are fixedly connected to the lower ends of the first sector-shaped baffles (92). The wedge surfaces of the first wedge-shaped plates (93) face the sliding rod (74). The first wedge-shaped plates (93) penetrate through the arc-shaped plates (71) and are elastically slidably connected to the arc-shaped plates (71).

6. The buoyancy self-control fish collecting hopper device according to claim 5, wherein: The second isolation mechanism includes a plurality of second sector-shaped plates (101) that fit against the sliding rod (74). The plurality of second sector-shaped plates (101) are each elastically slidably connected to the lower ends of the arc-shaped plates (71). Chamfers are provided at the upper ends of the sides of the second sector-shaped plates (101) close to the sliding rod (74). Second wedge-shaped blocks (102) are fixedly connected to the lower ends of the arc-shaped plates (71). Second sliding grooves (103) that vertically penetrate through the second sector-shaped plates (101) and the second wedge-shaped blocks (102) are provided in the second wedge-shaped blocks (102). The second sliding grooves (103) are used for avoiding the connecting rod (72). The lower end of the pressing plate (75) is in an inverted conical shape.

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