Mechanical fish collecting device for aquaculture net cage

Abstract

The invention belongs to the technical field of aquaculture equipment, and particularly relates to an aquaculture net cage mechanical fish collecting device which comprises a net cage frame, an external vertical net, an internal vertical net and a fish collecting channel. The movable gathering assembly is installed in the net cage frame, and the movable gathering assembly is used for actively gathering fish schools; according to the device, the moving gathering assembly is arranged, the moving net moves to drive fish schools in the culture cavity designed in an annular mode, the space where the fish schools are located is compressed in cooperation with the separation net and the bottom drop net, then the gathering density of the fish schools is increased, and at the moment, the difficulty of capturing the fish schools through a fish collecting pump is small, and the effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of aquaculture equipment, in particular to a mechanized fish collecting device for aquaculture cages. Background Art

[0002] Cage aquaculture technology has a long history. It allows fish farming in open waters, thus effectively utilizing vast marine resources. Cage aquaculture technology provides fish with a relatively closed living environment by using floating or sinking cages, which helps to control the farming conditions. As cage aquaculture technology becomes more and more sophisticated, it makes cage aquaculture technology more diverse, which puts forward more and more demands on supporting equipment for cage aquaculture.

[0003] In large-scale cage farming, the fish are grown and reproduced in scattered cage areas. When the harvest season comes, the fish cultured in the cages need to be captured and harvested. The use of equipment such as fish collecting pumps developed in related technologies has made it easier to capture fish cultured in cages and further improved the convenience of cage farming. However, in actual application, it was found that since the fish in the cages are in a scattered state, the efficiency of capturing the fish with equipment such as fish collecting pumps is too low. In addition, since the influence range of the fish collecting pumps is limited, relying solely on the fish collecting pumps cannot guarantee the fish capture effect.

[0004] The related technology discloses a large-scale cage fishing device and fishing method for deep-sea fish farming, with application number CN2021103725559. The scheme enables fish to autonomously gather in the fish collecting box by constructing arc-shaped net walls, radial net walls and lifting net walls and cooperating with fish-attracting lights; and through the grading grid provided at the bottom of the fish collecting box, young fish that do not meet the fishing specifications can be released through the grading grid, and the target fish can be concentrated in the fish collecting box, thereby realizing efficient batch fishing of target fish in deep-water cages. However, in actual application, it was found that the efficiency of attracting fish schools by using fish-attracting light equipment is too slow, and it is not convenient to quickly gather the fish schools.

[0005] In view of this, the present invention proposes a mechanized fish collecting device for aquaculture cages to solve the above technical problems. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the present invention proposes a mechanized fish collecting device for aquaculture cages.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a mechanized fish collecting device for aquaculture net cages according to the present invention comprises a net cage frame, an external vertical net, an internal vertical net and a fish collecting channel;

[0008] The cage frame is a frame-type structure, an external vertical net is sleeved and installed on the outer side of the cage frame, an internal vertical net is sleeved and installed on the central column of the cage frame, and the cage frame, the external vertical net and the internal vertical net form an annular breeding chamber;

[0009] The external vertical net is provided with a fish collecting passage, and a fish door is installed in the fish collecting passage;

[0010] It also includes a mobile gathering component, which is installed inside the cage frame and is used to actively gather fish schools;

[0011] The mobile gathering assembly includes a mobile net, an isolation net, a bottom lifting net and a traction rope;

[0012] The movable net and the isolation net are both installed inside the cage frame, the areas of the movable net and the isolation net match the cross-section of the culture chamber, and the isolation net is fixedly installed on one side of the fish collection channel;

[0013] The bottom lifting net is installed inside the cage frame, and the bottom lifting net corresponds to the fish collecting channel;

[0014] The traction rope includes a first traction rope and a second traction rope. The first traction rope is fixedly installed on the upper and lower ends of the mobile net and the isolation net, and the second traction rope is fixedly installed on the left and right sides of the bottom lifting net. The traction rope is used for external power equipment.

[0015] Preferably, the mobile net, isolation net and bottom lifting net are respectively installed with floats and sinkers at the upper and lower ends, wherein the floats and sinkers on the bottom lifting net are divided into two groups, and the two groups of floats and sinkers are respectively installed at the two ends of the bottom lifting net, the mobile net, isolation net and floats and sinkers are fixedly connected with ropes, and the bottom lifting net is connected to the floats through a second traction rope.

[0016] Preferably, it also includes a convenient installation component, which cooperates with the mobile gathering component to install the mobile net, the isolation net and the bottom lifting net;

[0017] The convenient installation assembly includes an elastic frame, a stretch rope and a mounting block;

[0018] The movable net, the isolation net and the bottom lifting net are all fixedly installed with elastic frames, the elastic frames are quadrilateral structures formed by four elastic rods fixedly connected end to end, and the elastic frames are used to elastically support the movable net, the isolation net and the bottom lifting net;

[0019] A mounting block is installed in the middle of one of the elastic rods, a control groove is opened on the mounting block, a wire wheel is rotatably installed in the control groove, a stretching rope is fixedly installed on the wire wheel, and the stretching rope extends to the middle of the other three elastic rods.

[0020] Preferably, a sleeve is slidably mounted on the mounting block, and the sleeve is used to limit the elastic frame in a folded state.

[0021] Preferably, a hole groove and a sliding groove are provided on the mounting block, the stretching rope extends into the control groove through the hole groove and the sliding groove, a hole plate is elastically installed in the sliding groove through a spring, the middle part of the stretching rope passes through the hole plate, and the hole groove and the hole plate are designed to be offset in the initial state.

[0022] Preferably, the convenient installation assembly further includes a guide rope and a connector;

[0023] There are two guide ropes, each of which is fixedly mounted with a plurality of connectors, each of which is provided with a connection hole, each of which is fixedly mounted with a binding belt, and the binding belt is used to fix the connector to the cage frame;

[0024] The isolation net is fixedly connected to the connecting piece, and the mobile net and the isolation net are respectively fixedly installed on the middle part of the first traction rope, and both ends of the first traction rope and the second traction rope extend into the connecting holes on two adjacent connecting pieces, and the end diameters of the first traction rope and the second traction rope are both larger than the diameter of the connecting hole.

[0025] Preferably, hooks are fixedly installed at both ends of the first traction rope and the second traction rope, and the first traction rope and the second traction rope are in a detachable annular structure under the action of the hooks.

[0026] Preferably, the movable net and the isolation net are both fixedly mounted with blocking members, and the blocking members include elastic side nets and support rods;

[0027] The support rods are fixedly installed at the connection points of a plurality of elastic rods, the elastic side net is a mesh made of elastic material, and the elastic side net is installed between a plurality of support rods.

[0028] Preferably, the blocking member further comprises a deflection rod, the deflection rod is hingedly mounted on the support rod, the deflection rod is elastically connected to the non-hinged end of the support rod via a supporting spring, and the elastic side net is fixedly mounted on a plurality of deflection rods.

[0029] The beneficial effects of the present invention are as follows:

[0030] 1. The mechanized fish collecting device for aquaculture cages described in the present invention, by setting up a mobile gathering component, utilizes the movement of the mobile net to drive the fish in the annular breeding chamber, cooperates with the isolation net and the bottom lifting net to achieve compression of the space where the fish are located, thereby increasing the gathering density of the fish. At this time, it is easy to capture the fish with a fish collecting pump and the effect is good.

[0031] 2. The mechanized fish collecting device for aquaculture cages described in the present invention, when the moving net, the isolation net and the bottom lifting net are installed inside the aquaculture chamber, the deflection rod is limited under the volume restriction of the aquaculture chamber, so that the elastic side net is tilted, and the moving net, the isolation net, the bottom lifting net and the aquaculture chamber are combined to fill the gap. Especially during the movement of the moving net, the presence of the elastic side net can always fill the gap between the moving net and the aquaculture chamber, thereby reducing the probability of fish passing through the moving net through the gap, thereby enhancing the effect of driving away the fish. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033] Figure 1 It is an assembly stereogram of the net cage frame, the external vertical net and the internal vertical net in the present invention;

[0034] Figure 2 is an assembly stereogram of the mobile gathering assembly of the present invention;

[0035] Figure 3 It is a stereogram of the mobile network;

[0036] Figure 4 It is a three-dimensional picture of the bottom lifting net;

[0037] Figure 5 It is a stereoscopic diagram of the assembly of the guide rope and the connecting piece;

[0038] Figure 6 It is a folded stereogram of the isolation net;

[0039] Figure 7 is a stereogram of the mounting block;

[0040] Figure 8 is a cross-sectional view of the mounting block;

[0041] Fig. 9 It is a three-dimensional diagram of the assembly of the blocking piece and the elastic frame;

[0042] Fig.10 yes Fig. 9 A partial enlarged view of the middle A;

[0043] In the figure: 1. cage frame; 11. external vertical net; 12. internal vertical net; 13. fish gate; 2. mobile net; 21. isolation net; 22. bottom lifting net; 23. first traction rope; 24. second traction rope; 25. float; 26. sinker; 31. elastic rod; 32. stretch rope; 33. mounting block; 34. control groove; 35. reel; 36. casing; 4. hole groove; 41. sliding groove; 42. hole plate; 5. guide rope; 51. connector; 52. connecting hole; 53. lashing belt; 54. hook; 55. elastic side net; 56. support rod; 57. deflection rod; 58. support spring. DETAILED DESCRIPTION

[0044] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0045] like Figures 1 to 10 As shown, a mechanized fish collecting device for aquaculture cages according to the present invention comprises a cage frame 1, an external vertical net 11, an internal vertical net 12 and a fish collecting channel;

[0046] The cage frame 1 is a frame-type structure, an external vertical net 11 is sleeved and installed on the outer side of the cage frame 1, and an internal vertical net 12 is sleeved and installed on the central column of the cage frame 1. The cage frame 1, the external vertical net 11 and the internal vertical net 12 constitute an annular breeding chamber;

[0047] The external vertical net 11 is provided with a fish collecting passage, and a fish gate 13 is installed in the fish collecting passage;

[0048] It also includes a mobile gathering component, which is installed inside the cage frame 1 and is used to actively gather fish schools;

[0049] The mobile gathering assembly includes a mobile net 2, an isolation net 21, a bottom lifting net 22 and a traction rope;

[0050] The movable net 2 and the isolation net 21 are both installed inside the cage frame 1. The areas of the movable net 2 and the isolation net 21 match the cross-section of the culture chamber. The isolation net 21 is fixedly installed on one side of the fish collection channel.

[0051] The bottom lifting net 22 is installed inside the cage frame 1, and the bottom lifting net 22 corresponds to the fish collecting channel;

[0052] The traction rope includes a first traction rope 23 and a second traction rope 24. The first traction rope 23 is fixedly installed at the upper and lower ends of the mobile net 2 and the isolation net 21, and the second traction rope 24 is fixedly installed at the left and right sides of the bottom lifting net 22. The traction rope is used for external power equipment.

[0053] In the cage culture process, the cage frame 1 is combined with the external vertical net 11 and the internal vertical net 12 to form a circular culture chamber. The fish grow and breed in the culture chamber. When the fish in the culture chamber need to be caught, in order to enhance the convenience of catching the fish, the present invention is provided with a mobile gathering component to gather the fish at a specific position in the culture chamber, thereby facilitating the transportation of the fish through the fish collecting pump loaded in the fish collecting channel.

[0054] Specifically, when gathering the fish in the breeding chamber, the staff first installs the bottom lifting net 22 in the breeding chamber, and the installation position of the bottom lifting net 22 corresponds to the fish collecting channel. Then the staff fixes the isolation net 21 on one side of the fish collecting channel, and the bottom lifting net 22 is perpendicular to the isolation net 21. The cross-sectional area of ​​the isolation net 21 is the same as that of the corresponding breeding chamber, so the isolation net 21 cuts off the annular breeding chamber. Then the staff connects the first traction ropes 23 at the upper and lower ends of the mobile net 2 to external power equipment such as a winch. Under the action of the power equipment, the first traction rope 23 pulls the mobile net 2 to slide in the breeding chamber. Since the cross-sectional size of the mobile net 2 matches the cross-sectional size of the breeding chamber, and in the present invention, the mobile nets 2 are designed in multiple numbers and are evenly distributed in the breeding chamber, during the movement of the mobile net 2, when the mobile net 2 is in a vertical state, the mobile net 2 will slide the breeding chamber. The cross-section of the bottom lifting net 22 is blocked, thereby promoting the movement of the fish in the breeding chamber. When the mobile net 2 is in a non-vertical state, the mobile net 2 cannot block the cross-section of the breeding chamber. Therefore, the fish can swim across the mobile net 2. Therefore, when granting, the staff can freely select the mobile nets 2 at different positions according to the number of fish to be gathered at a single time, and then use the movement of the mobile net 2 to prompt the fish to finally gather above the bottom lifting net 22. Then the staff will bind the moved mobile net 2 to the cage frame 1, cooperate with the isolation net 21 to block the two ends of the space above the bottom lifting net 22, and connect the second traction rope 24 on the bottom lifting net 22 to an external winch or other power equipment, and pull the bottom lifting net 22 up through the second traction rope 24 to further gather the fish. At the same time, the staff manually opens the fish door 13, and extends equipment such as the fish collecting pump into the fish collecting channel to capture the fish.

[0055] The present invention sets a mobile gathering component and utilizes the movement of the mobile net 2 to drive the fish in the annular breeding chamber, cooperates with the isolation net 21 and the bottom lifting net 22 to compress the space where the fish are located, thereby increasing the gathering density of the fish. At this time, it is easy to capture the fish with a fish collecting pump and the effect is good.

[0056] As a preferred embodiment of the present invention, the mobile net 2, the isolation net 21 and the bottom lifting net 22 are respectively installed with floats 25 and sinkers 26 at the upper and lower ends, wherein the floats 25 and sinkers 26 on the bottom lifting net 22 are divided into two groups, and the two groups of floats 25 and sinkers 26 are respectively installed at the two ends of the bottom lifting net 22, the mobile net 2, the isolation net 21 and the floats 25 and sinkers 26 are fixedly connected with ropes, and the bottom lifting net 22 is connected to the float 25 by a second traction rope 24.

[0057] When installing the mobile net 2, the isolation net 21 and the bottom lifting net 22, since the mobile net 2, the isolation net 21 and the bottom lifting net 22 are all installed with floats 25 and sinkers 26, the mobile net 2, the isolation net 21 and the bottom lifting net 22 are folded and tied in the initial state to greatly reduce their occupied area. Then, with the cooperation of the staff, the mobile net 2, the isolation net 21 and the bottom lifting net 22 are transported to the installation position of the breeding chamber, and the mobile net 2, the isolation net 21 and the bottom lifting net 22 in the folded and tied state are opened. At this time, under the action of the sinker 26 and the float 25, the mobile net 2 and the isolation net 21 are automatically unfolded and arranged vertically in the breeding chamber, while the bottom lifting net 22 is horizontally unfolded in the breeding chamber, thereby enhancing the installation convenience of the mobile net 2, the isolation net 21 and the bottom lifting net 22.

[0058] As a preferred embodiment of the present invention, it also includes a convenient installation component, which cooperates with the mobile gathering component to install the mobile net 2, the isolation net 21 and the bottom lifting net 22;

[0059] The convenient installation assembly includes an elastic frame, a stretch rope 32 and a mounting block 33;

[0060] The mobile net 2, the isolation net 21 and the bottom lifting net 22 are all fixedly installed with elastic frames, which are quadrilateral structures formed by four elastic rods 31 fixedly connected end to end, and are used to elastically support the mobile net 2, the isolation net 21 and the bottom lifting net 22;

[0061] A mounting block 33 is installed in the middle of one of the elastic rods 31, and a control slot 34 is opened on the mounting block 33. A wire wheel 35 is rotatably installed in the control slot 34, and a stretching rope 32 is fixedly installed on the wire wheel 35. The stretching rope 32 extends to the middle of the other three elastic rods 31;

[0062] In order to further enhance the convenience of installation of the mobile net 2, the isolation net 21 and the bottom lifting net 22, a convenient installation component is provided in the present invention, wherein a plurality of elastic frames are respectively fixedly mounted on the mobile net 2, the isolation net 21 and the bottom lifting net 22. When folding the mobile net 2, the isolation net 21 and the bottom lifting net 22, the staff manually rotates the wire wheel 35 inside the control groove 34 with the help of a tool, so that the wire wheel 35 pulls the stretching rope 32. Since the other ends of the stretching rope 32 extend to the middle parts of the other elastic rods 31 constituting the elastic frame, when the stretching rope 32 is tightened, the plurality of elastic rods 31 are deformed, thereby causing the elastic frame to contract regularly, thereby realizing the contraction of the mobile net 2, the isolation net 21 and the bottom lifting net 22. Then, when the mobile net 2, the isolation net 21 After the bottom lifting net 22 is moved to the designated installation position, the staff rotates the wire wheel 35 in the opposite direction to loosen the stretch rope 32. Under the elastic action of the elastic rod 31 itself, the elastic frame returns to the initial quadrilateral structure. In the process of the elastic frame recovering its deformation, the mobile net 2, the isolation net 21 and the bottom lifting net 22 are quickly unfolded, and the position adjustment function of the mobile net 2, the isolation net 21 and the bottom lifting net 22 is coordinated with the float 25 and the sinker 26. Finally, the mobile net 2 and the isolation net 21 are arranged vertically in the breeding cavity, while the bottom lifting net 22 is arranged horizontally at the bottom of the breeding cavity, thereby further optimizing the installation process of the mobile net 2, the isolation net 21 and the bottom lifting net 22, making the installation of the mobile net 2, the isolation net 21 and the bottom lifting net 22 more convenient and quick.

[0063] As a preferred embodiment of the present invention, a sleeve 36 is slidably mounted on the mounting block 33, and the sleeve 36 is used to limit the elastic frame in the folded state.

[0064] In order to further enhance the folding effect of the mobile net 2, the isolation net 21 and the bottom lifting net 22, a sleeve 36 is installed on the mounting block 33 in the present invention. When the mobile net 2, the isolation net 21 and the bottom lifting net 22 are not folded, the sleeve 36 is completely located on the mounting block 33. When the wire wheel 35 tightens the stretch rope 32, causing the mobile net 2, the isolation net 21 and the bottom lifting net 22 to fold, the sleeve 36 is pushed at this time, causing the sleeve 36 to limit the elastic frame, thereby enhancing the folding effect of the elastic frame.

[0065] As a preferred embodiment of the present invention, a hole groove 4 and a sliding groove 41 are provided on the mounting block 33, and the stretching rope 32 extends into the control groove 34 through the hole groove 4 and the sliding groove 41. A hole plate 42 is elastically installed in the sliding groove 41 through a spring, and the middle part of the stretching rope 32 passes through the hole plate 42. In the initial state, the hole groove 4 and the hole plate 42 are designed to be offset.

[0066] The arrangement of the hole groove 4 and the hole plate 42, on the one hand, when tightening or loosening the stretch rope 32, the hole plate 42 is manually pushed and pulled to align the hole plate 42 with the hole groove 4, thereby guiding the moving path of the stretch rope 32; on the other hand, when the stretch rope 32 is not to be pulled, the hole plate 42 slides under the action of the spring, causing the hole groove 4 and the hole plate 42 to be misaligned, and then the misalignment of the hole plate 42 and the hole groove 4 is utilized to fix the stretch rope 32.

[0067] As a preferred embodiment of the present invention, the convenient installation assembly further includes a guide rope 5 and a connecting member 51;

[0068] There are two guide ropes 5, each of which is fixedly mounted with a plurality of connectors 51, each of which is provided with a connection hole 52, and each of which is fixedly mounted with a binding belt 53, and the binding belt 53 is used to fix the connector 51 to the cage frame 1;

[0069] The isolation net 21 is fixedly connected to the connecting piece 51, and the mobile net 2 and the isolation net 21 are respectively fixedly installed in the middle of the first traction rope 23, and both ends of the first traction rope 23 and the second traction rope 24 extend into the connecting holes 52 on the two adjacent connecting pieces 51, and the end diameters of the first traction rope 23 and the second traction rope 24 are larger than the diameter of the connecting hole 52.

[0070] When actually installing the mobile net 2, the isolation net 21 and the bottom lifting net 22, the staff will install the first traction rope 23 and the second traction rope 24 corresponding to the folded mobile net 2, the isolation net 21 and the bottom lifting net 22 on the connecting piece 51 through the connecting hole 52, and then under the action of the guide rope 5 and the connecting piece 51, the mobile net 2, the isolation net 21 and the bottom lifting net 22 are connected as a whole. During installation, the staff directly pulls the end of the guide rope 5, which can simultaneously drive the mobile net 2, the isolation net 21 and the bottom lifting net 22 to move into the breeding chamber, and finally complete the installation of the mobile net 2, the isolation net 21 and the bottom lifting net 22. It should be noted that the position of the connecting piece 51 on the guide rope 5 corresponds to the installation position of the corresponding mobile net 2, the isolation net 21 and the bottom lifting net 22 in the breeding chamber, and in the folded state After the mobile net 2, isolation net 21 and bottom lifting net 22 are unfolded, the staff manually adjusts them so that the arrangement path of the guide rope 5 matches the ring shape of the breeding chamber. After the adjustment is completed, the staff fixes the connecting piece 51 to the cage frame 1 through the binding belt 53. Then, when moving the mobile net 2, the staff only needs to pull the two ends of the first traction rope 23 extending to the connecting piece 51 to make the mobile net 2 move between two adjacent connecting pieces 51. The state of the mobile net 2 during movement is related to the pulling rate of the upper and lower groups of first traction ropes 23, that is, when the upper and lower moving speeds of the mobile net 2 are the same, the mobile net 2 is in a vertical state to drive away the fish school, and when the upper and lower groups of first traction ropes 23 move at different speeds, the mobile net 2 is tilted, which makes it easier for the fish school to cross the mobile net 2.

[0071] Hooks 54 are fixedly installed at both ends of the first traction rope 23 and the second traction rope 24 . The first traction rope 23 and the second traction rope 24 are detachable annular structures under the action of the hooks 54 .

[0072] By utilizing the hook 54, the ends of the first traction rope 23 and the second traction rope 24 can be freely connected. Therefore, after the first traction rope 23 and the second traction rope 24 are connected to the connecting piece 51, the ends of the first traction rope 23 and the second traction rope 24 can be connected, so that the first traction rope 23 and the second traction rope 24 are ring-shaped, and then the first traction rope 23 and the second traction rope 24 are utilized to enhance the connection effect of the two adjacent connecting pieces 51, share the tension during the movement of the guide rope 5, and reduce the probability of the guide rope 5 breaking.

[0073] As a preferred embodiment of the present invention, the mobile net 2 and the isolation net 21 are both fixedly mounted with blocking members, and the blocking members include an elastic side net 55 and a support rod 56;

[0074] The support rods 56 are fixedly installed at the connection points of the multiple elastic rods 31 . The elastic side nets 55 are mesh sheets made of elastic materials. The elastic side nets 55 are installed between the multiple support rods 56 .

[0075] The blocking member further comprises a deflection rod 57 , which is hingedly mounted on the support rod 56 . The deflection rod 57 is elastically connected to the non-hinged end of the support rod 56 via a support spring 58 . The elastic side net 55 is fixedly mounted on a plurality of deflection rods 57 .

[0076] In order to reduce the probability of blocking holes between the mobile net 2, the isolation net 21 and the bottom lifting net 22 and the breeding chamber, a blocking member is provided in the present invention, wherein the support rod 56 and the deflection rod 57 are used to support the side net. In actual application, under the support of the support spring 58, when the deflection rod 57 deflects to the maximum angle, the deflection rod 57 is flush with the elastic frame, and then the elastic side net 55 is used to expand the area of ​​the mobile net 2, the isolation net 21 and the bottom lifting net 22, and when the mobile net 2, the isolation net 21 After the bottom lifting net 22 is installed inside the breeding chamber, the deflection rod 57 is limited under the limitation of the volume of the breeding chamber, so that the elastic side net 55 is tilted, and the mobile net 2, the isolation net 21, the bottom lifting net 22 and the breeding chamber are combined to fill the gap. Especially during the movement of the mobile net 2, the presence of the elastic side net 55 can always fill the gap between the mobile net 2 and the breeding chamber, reduce the probability of fish passing through the mobile net 2 through the gap, and thus enhance the effect of driving away the fish.

[0077] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A mechanized fish collecting device for aquaculture cages, comprising a cage frame (1), an external vertical net (11), an internal vertical net (12) and a fish collecting channel; The cage frame (1) is a frame-type structure, an external vertical net (11) is sleeved and installed on the outer side of the cage frame (1), an internal vertical net (12) is sleeved and installed on the central column of the cage frame (1), and the cage frame (1), the external vertical net (11) and the internal vertical net (12) form an annular breeding chamber; The external vertical net (11) is provided with a fish collecting passage, and a fish door (13) is installed in the fish collecting passage; Features: It also comprises a mobile gathering component, which is installed inside the cage frame (1) and is used to actively gather fish schools; The mobile gathering assembly comprises a mobile net (2), an isolation net (21), a bottom lifting net (22) and a traction rope; The movable net (2) and the isolation net (21) are both installed inside the cage frame (1); the areas of the movable net (2) and the isolation net (21) match the cross-section of the culture chamber; and the isolation net (21) is fixedly installed on one side of the fish collection channel; The bottom lifting net (22) is installed inside the net cage frame (1), and the bottom lifting net (22) corresponds to the fish collecting channel; The traction rope comprises a first traction rope (23) and a second traction rope (24); the first traction rope (23) is fixedly mounted on the upper and lower ends of the mobile net (2) and the isolation net (21); the second traction rope (24) is fixedly mounted on the left and right sides of the bottom lifting net (22); and the traction rope is used for connecting to an external power device.

2. The mechanized fish collecting device for aquaculture cage according to claim 1, characterized in that: The upper and lower ends of the mobile net (2), the isolation net (21) and the bottom lifting net (22) are respectively installed with floats (25) and sinkers (26), wherein the floats (25) and sinkers (26) on the bottom lifting net (22) are divided into two groups, and the two groups of floats (25) and sinkers (26) are respectively installed at the two ends of the bottom lifting net (22), the mobile net (2), the isolation net (21) and the floats (25) and sinkers (26) are all fixedly connected by ropes, and the bottom lifting net (22) is connected to the floats (25) by a second traction rope (24).

3. The mechanized fish collecting device for aquaculture cage according to claim 2, characterized in that: It also includes a convenient installation component, which cooperates with the mobile gathering component and is used to install the mobile net (2), the isolation net (21) and the bottom lifting net (22); The convenient installation assembly comprises an elastic frame, a stretch rope (32) and a mounting block (33); The movable net (2), the isolation net (21) and the bottom lifting net (22) are all fixedly mounted with elastic frames, the elastic frames being quadrilateral structures formed by four elastic rods (31) fixedly connected end to end, and the elastic frames are used to elastically support the movable net (2), the isolation net (21) and the bottom lifting net (22); A mounting block (33) is installed in the middle of one of the elastic rods (31), a control groove (34) is provided on the mounting block (33), a wire wheel (35) is rotatably installed in the control groove (34), a stretching rope (32) is fixedly installed on the wire wheel (35), and the stretching rope (32) extends to the middle of the other three elastic rods (31).

4. The mechanized fish collecting device for aquaculture cages according to claim 3 is characterized by: A sleeve (36) is slidably mounted on the mounting block (33), and the sleeve (36) is used to limit the position of the elastic frame in a folded state.

5. The mechanized fish collecting device for aquaculture cages according to claim 3 is characterized by: The mounting block (33) is provided with a hole groove (4) and a sliding groove (41); the stretching rope (32) extends into the control groove (34) through the hole groove (4) and the sliding groove (41); a hole plate (42) is elastically installed in the sliding groove (41) by means of a spring; the middle part of the stretching rope (32) passes through the hole plate (42); and in an initial state, the hole groove (4) and the hole plate (42) are designed to be offset.

6. A mechanized fish collecting device for aquaculture cages according to claim 4 or 5, characterized in that: The convenient installation assembly further comprises a guide rope (5) and a connecting piece (51); The number of the guide ropes (5) is two, and a plurality of connecting pieces (51) are fixedly mounted on the guide ropes (5), and the connecting pieces (51) are provided with connecting holes (52), and the connecting pieces (51) are fixedly mounted with binding belts (53), and the binding belts (53) are used to fix the connecting pieces (51) to the cage frame (1); The isolation net (21) is fixedly connected to the connecting piece (51); the mobile net (2) and the isolation net (21) are respectively fixedly mounted on the middle of the first traction rope (23); both ends of the first traction rope (23) and the second traction rope (24) extend into the connection holes (52) on two adjacent connecting pieces (51); and the diameters of the ends of the first traction rope (23) and the second traction rope (24) are both larger than the diameter of the connection holes (52).

7. The mechanized fish collecting device for aquaculture cages according to claim 6, characterized in that: Both ends of the first traction rope (23) and the second traction rope (24) are fixedly mounted with hooks (54), and the first traction rope (23) and the second traction rope (24) are in the form of a detachable annular structure under the action of the hooks (54).

8. The mechanized fish collecting device for aquaculture cages according to claim 7, characterized in that: The movable net (2) and the isolation net (21) are both fixedly mounted with blocking members, the blocking members comprising an elastic side net (55) and a support rod (56); The support rod (56) is fixedly installed at the connection point of multiple elastic rods (31), the elastic side net (55) is a net made of elastic material, and the elastic side net (55) is installed between the multiple support rods (56).

9. The mechanized fish collecting device for aquaculture cages according to claim 8, characterized in that: The blocking member further comprises a deflection rod (57), wherein the deflection rod (57) is hingedly mounted on the support rod (56), the deflection rod (57) is elastically connected to the non-hinged end of the support rod (56) via a support spring (58), and the elastic side net (55) is fixedly mounted on the plurality of deflection rods (57).

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