Lake benthos trapping device

Abstract

The utility model belongs to the technical field of biological trapping devices, and particularly relates to a lake benthos trapping device which comprises a device body, the device body comprises a trapping box and shunting assemblies, the shunting assemblies are arranged on the two sides of the trapping box and comprise arc-shaped plates and shunting pipelines arranged in the arc-shaped plates, and the shunting pipelines are of hollow structures. A supporting rod is arranged in the base, and a plurality of fan blades are rotationally connected to the supporting rod; the trapping box comprises a first fixing frame, a second fixing frame, a fixing rod, a trapping outer net and a trapping inner net, the trapping inner net is arranged on one side of the first fixing frame and communicated with the trapping outer net, and the trapping outer net and the fixing rod are both arranged between the first fixing frame and the second fixing frame; a counterweight assembly is arranged on one side of the first fixed frame; through the shunting assembly and the counterweight assembly in the device, the water flow impact force in the advancing process can be effectively reduced, shaking caused by non-uniform filtered water quantity is avoided, and the stability of the trapping device is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of biological capture devices, and in particular relates to a lake benthic organism capture device. Background Art

[0002] Benthic animals refer to the general term for animals that live in water areas. Benthic organisms are collected through benthic organism capture devices to understand the species composition and distribution of benthic animals in water bodies.

[0003] The existing capture device has poor stability and is prone to ups and downs and shaking in the water. During the capture process, the water flow continuously impacts the capture device. When the fish in the capture device continues to exist on one side of the capture device, the capture device is prone to tilt and shake due to uneven water filtration. At the same time, affected by the impact of undercurrent, the capture device often shakes violently. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a lake benthic organism capture device, which solves the problems of poor stability of the prior art capture devices and severe shaking caused by uneven filtered water volume or water flow impact.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a device for capturing benthic organisms in lakes is provided, including a device body, the device body including a capturing box and a diversion assembly, the diversion assembly is arranged on both sides of the capturing box, and includes an arc plate and a diversion pipe arranged inside the arc plate, the diversion pipe is a hollow structure, a support rod is arranged inside, and a plurality of fan blades are rotatably connected to the support rod;

[0006] The capture box includes a first fixed frame, a second fixed frame, a fixed rod, an outer capture net and an inner capture net. The inner capture net is arranged on one side of the first fixed frame and is connected to the outer capture net. The outer capture net and the fixed rod are both arranged between the first fixed frame and the second fixed frame. A counterweight assembly is arranged on one side of the first fixed frame.

[0007] The beneficial effects of adopting the above technical solution are as follows: by connecting the counterweight assembly to the ship rope, the capture box can be moved forward in the water, and at the same time, the diversion assemblies arranged on both sides of the capture box can disperse the pressure of the water flow, so that the water flow flows in the diversion pipe, effectively reducing the impact force of the water flow on the capture box during the dragging process, and the fan blades rotatably connected to the support rod can generate a force opposite to the impact force of the water flow when impacted by the water flow, which can improve the balance of the capture box during the movement process, avoid shaking caused by uneven filtered water volume, and effectively improve the stability of the capture device The design of the curved plate can disperse the impact force of the water flow to both sides of the curved plate, and at the same time divide the impact force of the water flow into a horizontal impact force component and a longitudinal impact force component, thereby reducing the impact force of the water flow on the entire device, making the device stable, and effectively reducing the impact of the undercurrent on the stability of the device; at the same time, the inner capture net is connected to the outer capture net, and the captured fish will first pass through the connecting port and then flow to the outer capture net, so that the fish will flow evenly to various parts of the outer capture net, avoiding the accumulation of fish on one side of the corner, causing uneven water filtration and imbalance of the capture device.

[0008] Furthermore, the counterweight assembly includes a counterweight frame and a towing ear, and the towing ear is arranged on the counterweight frame.

[0009] The beneficial effects of adopting the above technical solution are as follows: the boat is connected to the towing ear through a rope, thereby driving the collection box forward, and through the counterweight frame arranged on the opening side of the collection box, under the action of gravity of the counterweight frame, the opening side of the collection box can be made to fit with the bottom of the lake, effectively avoiding incomplete collection.

[0010] Furthermore, the counterweight frame is in an arc shape.

[0011] The beneficial effects of adopting the above technical solution are: the arc-shaped counterweight frame can effectively reduce the impact force of the water flow, and the arc-shaped bottom of the counterweight frame can ensure the normal movement of the capture device on the bottom of the water, thereby preventing the capture device from being stuck due to gaps or stones in the water.

[0012] Furthermore, a plurality of protrusions are arranged on the arc-shaped plate, and a plurality of water guide grooves are formed between the protrusions.

[0013] The beneficial effect of adopting the above technical solution is that the water flow impact force can be divided into horizontal water flow impact force and longitudinal water flow impact force by the arc plate and the protrusion, thereby reducing the impact force on the capture device and improving the stability of the device.

[0014] Furthermore, anti-blocking covers are provided at both ends of the diversion pipeline, and a plurality of through holes are provided on the anti-blocking covers.

[0015] The beneficial effect of adopting the above technical solution is that the anti-blocking cover can not only maintain the normal passage of water flow, but also prevent aquatic organisms or weeds from clogging the diversion pipe.

[0016] Furthermore, the outer capture net is fixed to the first fixed frame and the second fixed frame by locking bolts, and the inner capture net is fixed to the first fixed frame by locking bolts.

[0017] The beneficial effect of adopting the above technical solution is that the outer capture net and the inner capture net fixed by the locking bolts can not only ensure the connection stability between the fixing frame and the outer capture net and the inner capture net, but also facilitate installation and disassembly, reducing the work intensity.

[0018] Furthermore, the first fixing frame and the second fixing frame each include a first fixing plate and a second fixing plate that are correspondingly arranged, and a chamfer is arranged at a connection between the first fixing plate and the second fixing plate.

[0019] The beneficial effect of adopting the above technical solution is: by setting a chamfer at the connection between the first fixing plate and the second fixing plate, it is convenient to fix the diverter assembly to the fixed frame through the locking bolts, and the impact force of the water flow during the dragging process of the capture box can be reduced.

[0020] Furthermore, a plurality of fan blades are evenly arranged on the support rod.

[0021] The beneficial effect of adopting the above technical solution is: by evenly arranging a number of fan blades on the support rod, the impact of water flow on the capture device during movement can be alleviated layer by layer, and at the same time, multiple forces in opposite directions can be provided, which can be used to balance the shaking of the device caused by uneven water filtration, thereby improving the stability of the device.

[0022] In summary, the lake benthic organism capture device provided by the utility model has the following beneficial effects:

[0023] (1) The capture device can effectively reduce the impact force of the water flow during the movement through the diversion component, improve the balance of the capture box during the movement, avoid shaking caused by uneven filtered water volume, and effectively improve the stability of the capture device.

[0024] (2) The capture device uses a combined capture method of an inner capture net and an outer capture net to allow the catch to flow evenly to various locations on the outer capture net, thereby preventing the catch from piling up on one side of a corner, causing uneven water filtration and imbalance in the capture device.

[0025] (3) The capture device can make the opening side of the capture box fit closely with the bottom surface of the lake through the counterweight assembly, which effectively avoids the situation where the capture box is not fully collected and improves the capture efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 It is a cross-sectional view of the utility model;

[0028] Figure 3 It is a structural schematic diagram of the counterweight assembly in the utility model;

[0029] Among them, 1. device body; 2. capture box; 21. first fixed frame; 22. second fixed frame; 23. capture outer net; 24. capture inner net; 25. locking bolt; 26. first fixed plate; 27. second fixed plate; 28. fixing rod; 3. diversion assembly; 31. arc plate; 32. diversion pipe; 33. support rod; 34. fan blade; 35. protrusion; 36. anti-blocking cover; 37. through hole; 4. counterweight assembly; 41. counterweight frame; 42. drag ear. DETAILED DESCRIPTION

[0030] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0031] like Figure 1 As shown, the lake benthic organism capture device provided by the utility model comprises a device body 1, the device body 1 comprises a capture box 2 and a diversion assembly 3 arranged on both sides of the capture box 2, and a counterweight assembly 4 is arranged on the open side of the capture box 2; when in use, the capture device is placed on the bottom of the lake, and the ship rope can be connected to the capture box 2 through the counterweight assembly 4, and under the action of the gravity of the counterweight assembly 4, the open side of the capture box 2 can be made to fit with the bottom surface of the lake, effectively avoiding the situation that the capture device does not collect the benthic organisms completely, and the diversion assembly 3 arranged on both sides of the capture box 2 can disperse the pressure of the water flow, so that the water flow flows in the diversion assembly 3, effectively reducing the impact force of the water flow on the capture box 2 during the dragging process, thereby improving the stability of the device and avoiding the shaking of the device caused by uneven filtered water.

[0032] In the embodiment of the present utility model, Figure 1As shown in Figure 2, the capture box 2 includes a first fixed frame 21, a second fixed frame 22, a fixing rod 28, a capture outer net 23 and a capture inner net 24. The capture outer net 23 is arranged between the first fixed frame 21 and the second fixed frame 22, and an opening is arranged on one side close to the first fixed frame 21, and the other side is in a sealed state; the opening of the capture inner net 24 is arranged on one side of the first fixed frame 21, and a connecting port connected to the capture outer net 23 is arranged on the other end, and the fixing rod 28 is arranged between the first fixed frame 21 and the second fixed frame 22; by arranging the connected capture inner net 24 and the capture outer net 23 inside the capture box 2, the captured fish can first enter the capture inner net 24, and then flow to the capture outer net 23 through the connecting port of the capture inner net 24, so that the fish can flow evenly to various places of the capture outer net 23, avoiding the accumulation of fish on one side of the corner, causing uneven water filtration and imbalance of the capture device.

[0033] like Figure 1 As shown, the outer capture net 23 is fixed to the first fixed frame 21 and the second fixed frame 22 by locking bolts 25, and the inner capture net 24 is fixed to the first fixed frame 21 by locking bolts 25; the outer capture net 23 and the inner capture net 24 fixed by locking bolts 25 can not only ensure the connection stability between the fixing frame and the outer capture net 23 and the inner capture net 24, but also facilitate installation and disassembly, reducing the work intensity.

[0034] The first fixed frame 21 and the second fixed frame 22 both include a corresponding first fixed plate 26 and a second fixed plate 27, and a chamfer is provided at the connection between the first fixed plate 26 and the second fixed plate 27; by providing a chamfer at the connection between the first fixed plate 26 and the second fixed plate 27, it is convenient to fix the diverter assembly 3 to the fixed frame through the locking bolts 25, and can also reduce the impact force of the water flow during the dragging process of the capture box 2.

[0035] like Figure 1 and Figure 3 As shown, the counterweight assembly 4 is arranged on one side of the first fixed frame 21, and includes a counterweight frame 41 and a towing ear 42. The towing ear 42 is arranged on the counterweight frame 41, and the counterweight frame 41 is arc-shaped. When in use, the boat is connected to the towing ear 42 by a rope, thereby driving the capture box 2 forward, and through the counterweight frame 41 arranged on the opening side of the capture box 2, under the action of the gravity of the counterweight frame 41, the opening side of the capture box 2 can be made to fit with the bottom of the lake, effectively avoiding incomplete collection; and the arc-shaped counterweight frame 41 can not only effectively reduce the impact force of the water flow, but also ensure the normal movement of the capture device on the bottom of the water through the arc-shaped bottom of the counterweight frame 41, avoiding the capture device from being stuck due to gaps or stones in the water.

[0036] In the embodiment of the present utility model, Figure 1 and Figure 2As shown, the diverter assembly 3 is fixed to the fixing rod 28 by a locking bolt 25, and includes an arc-shaped plate 31 and a diverter pipe 32 arranged inside the arc-shaped plate 31. The diverter pipe 32 is a hollow structure, and a support rod 33 is arranged inside it. A plurality of fan blades 34 are rotatably connected to the support rod 33, and the plurality of fan blades 34 are evenly arranged on the support rod 33. When in use, the diverter assembly 3 can disperse the pressure of the water flow, so that the water flow flows in the diverter pipe 32, which effectively reduces the impact force of the water flow on the capture box 2 during the dragging process, and the fan blades 34 rotatably connected to the support rod 33 can generate a force opposite to the impact force of the water flow when being impacted by the water flow, which can improve the balance of the capture box 2 during the movement process and avoid It avoids the shaking caused by uneven filtered water volume, and effectively improves the stability of the capture device; the design of the arc plate 31 can disperse the impact force of the water flow to both sides of the arc plate 31, and at the same time divide the impact force of the water flow into a horizontal impact force component and a longitudinal impact force component, thereby reducing the impact force of the water flow on the entire device, making the device tend to be stable, and effectively reducing the influence of the undercurrent on the stability of the device; at the same time, a number of fan blades 34 evenly arranged on the support rod 33 can gradually alleviate the water flow impact on the capture device during its movement, and can provide multiple opposite forces, which can be used to balance the shaking of the device caused by uneven water filtration, further improving the stability of the device.

[0037] like Figure 1 and Figure 2 As shown, a plurality of protrusions 35 are provided on the arc plate 31, and a plurality of water guide grooves are formed between the protrusions 35. Anti-blocking covers 36 are also provided at both ends of the diversion pipe 32, and a plurality of through holes 37 are provided on the anti-blocking covers 36. The arc plate 31 and the protrusions 35 can divide the impact force of the water flow into a horizontal impact force of the water flow and a longitudinal impact force of the water flow, thereby reducing the impact force on the capture device and improving the stability of the device. The anti-blocking cover 36 can not only maintain the normal passage of the water flow, but also prevent the diversion pipe 32 from being blocked by aquatic organisms or weeds.

[0038] The specific implementation process of the embodiment of the utility model is as follows: the towing ear 42 is connected to the rope of the ship, and the capture box 2 is placed at the bottom of the lake. The towing ear 42 is dragged by the rope to make the capture device move forward at the bottom of the lake. During the movement, the counterweight frame 41 makes the capture box 2 fit closely with the bottom of the lake through gravity. At the same time, the counterweight frame 41 with an arc shape at the bottom can ensure that the capture box 2 slides smoothly at the bottom of the lake. The diversion pipe 32 can disperse the impact force of the undercurrent and the water flow during the movement. The fan blades 34 play a role in the impact force of the water flow. The arc plate 31 and the protrusion 35 disperse and reduce the impact of undercurrent on both sides of the capturing device, so that the device tends to be stable. The captured fish first enters the capturing inner net 24, and then flows to the capturing outer net 23 through the connecting port of the capturing inner net 24, so that the fish flows evenly to all parts of the capturing outer net 23, avoiding the accumulation of fish on one side of the corner, causing uneven water filtration and imbalance of the capturing device.

[0039] In summary, the lake benthic organism capture device provided by the utility model can improve the stability of the device through the counterweight component 4, and can effectively reduce the impact force of the water flow during the movement through the diversion component 3, improve the balance of the capture box 2 during the movement, avoid shaking caused by uneven filtered water volume, and effectively improve the stability of the capture device.

Claims

1. A device for capturing benthic organisms in lakes, characterized in that: The device comprises a device body (1), wherein the device body (1) comprises a capture box (2) and a flow diversion assembly (3), wherein the flow diversion assembly (3) is arranged on both sides of the capture box (2), and comprises an arc-shaped plate (31) and a flow diversion pipe (32) arranged inside the arc-shaped plate (31), wherein the flow diversion pipe (32) is a hollow structure, wherein a support rod (33) is arranged inside the support rod (33), and a plurality of fan blades (34) are rotatably connected to the support rod (33); The capture box (2) comprises a first fixed frame (21), a second fixed frame (22), a fixed rod (28), a capture outer net (23) and a capture inner net (24); the capture inner net (24) is arranged on one side of the first fixed frame (21) and is connected to the capture outer net (23); the capture outer net (23) and the fixed rod (28) are both arranged between the first fixed frame (21) and the second fixed frame (22); and a counterweight assembly (4) is arranged on one side of the first fixed frame (21).

2. The lake benthic organism capture device according to claim 1, characterized in that: The counterweight assembly (4) comprises a counterweight frame (41) and a lug (42), wherein the lug (42) is arranged on the counterweight frame (41).

3. The lake benthic organism capture device according to claim 2, characterized in that: The counterweight frame (41) is in an arc shape.

4. The lake benthic organism capture device according to claim 1, characterized in that: A plurality of protrusions (35) are provided on the arc-shaped plate (31), and a plurality of water guide grooves are formed between the protrusions (35).

5. The lake benthic organism capture device according to claim 1, characterized in that: Anti-blocking covers (36) are provided at both ends of the diversion pipe (32), and a plurality of through holes (37) are provided on the anti-blocking covers (36).

6. The lake benthic organism capture device according to claim 1, characterized in that: The outer capture net (23) is fixed to the first fixed frame (21) and the second fixed frame (22) via locking bolts (25), and the inner capture net (24) is fixed to the first fixed frame (21) via locking bolts (25).

7. The lake benthic organism capture device according to claim 1, characterized in that: The first fixing frame (21) and the second fixing frame (22) both comprise a first fixing plate (26) and a second fixing plate (27) which are arranged correspondingly, and a chamfer is arranged at the connection between the first fixing plate (26) and the second fixing plate (27).

8. The lake benthic organism capture device according to claim 1, characterized in that: The plurality of fan blades (34) are evenly arranged on the support rod (33).

Images