Runway type internal circulation fishing net for aquaculture system

Abstract

The utility model relates to the field of aquaculture, in particular to a runway type fishing net for an internal circulation aquaculture system. A runway type fishing net for an internal circulation aquaculture system comprises an adjustable folding net frame, a net driving hanger, a fishing net body, a mesh adjusting device and a net capacity adjusting device. The adjustable folding netting gear frame comprises a first folding frame body and a second folding frame body, the fishing net body comprises an adjusting net body arranged between the first folding frame body and the second folding frame body and a fixed net body arranged at the rear end of the second folding frame body; the netting gear driving hangers are mounted on the two sides of the adjustable folding netting gear frame; and the mesh adjusting device is arranged on the fixed mesh body.

Description

Technical Field

[0001] The utility model relates to the field of aquaculture, in particular to a raceway type internal circulation aquaculture system fishing net. Background Art

[0002] The pond circulation runway aquaculture system, also known as the pond circulation water "runway" aquaculture model (IPA), is a pond aquaculture model that has been vigorously promoted throughout the country in recent years and is one of the main technologies promoted by local promotion departments. It has developed rapidly in the past decade, and the aquaculture varieties include more than ten varieties such as hybrid snakehead, black carp, striped perch, largemouth bass, sunfish, yellow catfish, grass carp, roundhead bream, tilapia, crucian carp, and ornamental red carp. Carry out "runway" type and suitable variety construction test demonstration, "runway" supporting aquaculture technology integration and demonstration, and compare the nutritional quality of traditional pond fish, and summarize a relatively complete species test report. Years of production practice have proved that the pond circulation runway aquaculture system can reduce the discharge of organic matter to the water environment and improve the quality of aquatic products without reducing the aquaculture output. However, due to the continuous bottom oxygenation and aeration water pushing, the electricity bill expenditure has increased and the feed coefficient has increased. Compared with traditional pond aquaculture, the production cost has increased slightly, and the better quality requires an increase in sales price. The advantage of the circulation track in the pond is that it is advisable to fish frequently in small quantities, which will increase the sales price.

[0003] At present, there are several fishing methods: one is to use conventional nets or pull nets to fish on the runway, but it is difficult to ensure the number of catches because the water level of the aquaculture runway is maintained at around 2000MM; the other is to use fully fixed rectangular fishing nets, but the fully fixed rectangular fishing nets are large and heavy, which is not conducive to the collection or transportation of nets. Therefore, the above two methods directly reduce the sales volume of aquatic products in the pond circulation aquaculture system model, thus affecting the promotion of this model. In addition, the traditional fishing nets have a fixed capacity and a fixed mesh size, which is not suitable for fishing on demand. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the background technology and provide a raceway type internal circulation aquaculture system fishing net.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A raceway type internal circulation aquaculture system fishing net, characterized in that it comprises: an adjustable folding net frame, a net driving hanger, a fishing net body, a mesh adjustment device and a net capacity adjustment device;

[0007] The adjustable folding net frame comprises: a first folding frame and a second folding frame; the fishing net body comprises: an adjusting net body arranged between the first folding frame and the second folding frame and a fixed net body arranged at the rear end of the second folding frame; the net driving hanger is installed on both sides of the adjustable folding net frame; the mesh adjustment device is arranged on the fixed net body.

[0008] Preferably, the first folding frame and the second folding frame both include: corner folding frame bars and middle folding frame bars; a center frame bar is also provided in the middle of the second folding frame; the corner folding frame bars and the middle folding frame bar are hingedly connected, and two symmetrically hinged middle folding frame bars are provided in the middle of the first folding frame; two symmetrically hinged folding frame bars on both sides of the center frame bar are provided in the middle of the second folding frame; self-closing hinges are provided at all frame bar hinges, and locking pins are provided on the back of all frame bar hinges.

[0009] Preferably, the mesh adjustment device comprises: a fixed frame and a sliding frame which are arranged in a stacked manner, wherein the fixed frame and the sliding frame are connected via an inclined slide rail, and a positioning bolt is arranged on the inclined slide rail.

[0010] Preferably, screening meshes of the same specifications are provided in the fixed frame and the sliding frame.

[0011] Preferably, the net capacity adjustment device comprises: positioning rods installed on both sides of the first folding frame and the second folding frame, and positioning holes arranged on the net driving hanger.

[0012] Preferably, the net capacity adjustment device comprises a scissor rod set arranged between the first folding frame and the second folding frame, and sliding adjustment grooves arranged on the first folding frame and the second folding frame.

[0013] Preferably, the two fixed ends of the scissors rod group are respectively hinged to the middle folding frame bars of the first folding frame and the second folding frame; the two sliding ends of the scissors rod group are respectively arranged in the sliding adjustment grooves on the first folding frame and the second folding frame, and a locking bolt group is also arranged at each adjustment groove.

[0014] In summary, the beneficial effects of the utility model are:

[0015] 1. The raceway-type internal circulation aquaculture system fishing net described in the utility model can adjust the capacity of the fishing net according to demand through an adjustable folding net frame, thereby controlling the catch amount and improving the quality of the aquatic products cultured on the raceway;

[0016] 2. The raceway-type internal circulation aquaculture system fishing net described in the utility model can control the volume of the fish caught as needed through the mesh adjustment device, thereby improving the quality of the raceway cultured aquatic products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a folding schematic diagram of the adjustable folding net frame in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the self-closing hinge and the locking latch at the connection of the middle frame strip of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the capacity adjustment device of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the mesh adjustment device in the utility model;

[0022] Figure 6 It is a schematic diagram of the adjustment method of the mesh adjustment device in the utility model;

[0023] Figure 7 It is a structural schematic diagram of a net capacity adjustment device according to Embodiment 2 of the present utility model. DETAILED DESCRIPTION

[0024] The following specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0025] The present invention will be described in detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] according to Figure 1 to Figure 4 As shown, a raceway type internal circulation aquaculture system fishing net is characterized by comprising: an adjustable folding net frame 1, a net driving hanger 2, a fishing net body 3, a mesh adjustment device 4 and a net capacity adjustment device 5;

[0028] The adjustable folding net frame 1 includes: a first folding frame 11 and a second folding frame 12; the fishing net body 3 includes: an adjusting net body 31 arranged between the first folding frame 11 and the second folding frame 12 and a fixed net body 32 arranged at the rear end of the second folding frame 12; the net driving hanger 2 is installed on both sides of the adjustable folding net frame 1; the mesh adjustment device 4 is arranged on the fixed net body 32.

[0029] Both the first folding frame 11 and the second folding frame 12 include: a corner folding frame strip 101 and a middle folding frame strip 102; a center frame strip 121 is also provided in the middle of the second folding frame 12; the corner folding frame strip 101 and the middle folding frame strip 102 are hingedly connected, and two symmetrically hinged middle folding frame strips 102 are provided in the middle of the first folding frame 11; two symmetrically hinged folding frame strips 102 on both sides of the center frame strip 121 are provided in the middle of the second folding frame 12; self-closing hinges 6 are provided at all frame strip hinges, and locking pins 7 are provided on the back of all frame strip hinges.

[0030] The net capacity adjustment device 5 comprises: positioning rods 51 installed on both sides of the first folding frame 11 and the second folding frame 12 and positioning holes 52 arranged on the net driving hanger 2 .

[0031] When the net is stored, the first folding frame 11 and the second folding frame 12 are removed from the net driving hanger 2, and the locking pins 7 at the hinges of all the frame bars are pulled open. Under the action of the self-closing hinge 6, the first folding frame 11 and the second folding frame 12 are automatically folded. Figure 2 shown.

[0032] When the net is in use, all the frame bars are unfolded and locked with the locking pin 7. The spacing between the first folding frame 11 and the second folding frame 12 is set according to the required fishing amount, and the first folding frame 11 and the second folding frame 12 are fixed on the net driving hanger 2 by the positioning rod 51 and the positioning hole 52.

[0033] according to Figure 5 The mesh adjustment device 4 comprises: a fixed frame 41 and a sliding frame 42 arranged in a stacked manner, the fixed frame 41 and the sliding frame 42 are connected by an inclined slide rail 43, and a positioning bolt is arranged on the inclined slide rail 43. The fixed frame 41 and the sliding frame 42 are provided with screening mesh surfaces 44 of the same specifications.

[0034] according to Figure 6 As shown, the sliding frame 42 slides on the inclined slide rail 43 of the fixed frame 41 so that the screening mesh surfaces 44 are mutually offset, thereby changing the mesh size.

[0035] Example 2

[0036] The difference from the above-mentioned embodiment 1 is that according to Figure 7As shown, the net capacity adjustment device 5 comprises a scissor rod set 501 arranged between the first folding frame 11 and the second folding frame 12 and a sliding adjustment slot 502 arranged on the first folding frame 11 and the second folding frame 12. The two fixed ends of the scissor rod set 501 are respectively hinged to the middle folding frame strips 102 of the first folding frame 11 and the second folding frame 12; the two sliding ends of the scissor rod set 501 are respectively arranged in the sliding adjustment slots 502 on the first folding frame 11 and the second folding frame 12, and each adjustment slot 502 is also provided with a locking bolt set 503.

Claims

1. A raceway type internal circulation aquaculture system fishing net, characterized in that: include: An adjustable folding net frame (1), a net driving hanger (2), a fishing net body (3), a mesh adjustment device (4) and a net capacity adjustment device (5); The adjustable folding net frame (1) comprises: a first folding frame (11) and a second folding frame (12); the fishing net body (3) comprises: an adjusting net body (31) arranged between the first folding frame (11) and the second folding frame (12) and a fixed net body (32) arranged at the rear end of the second folding frame (12); the net driving hanger (2) is installed on both sides of the adjustable folding net frame (1); and the mesh adjustment device (4) is arranged on the fixed net body (32).

2. A raceway type internal circulation aquaculture system fishing net according to claim 1, characterized in that: The first folding frame (11) and the second folding frame (12) both comprise: a corner folding frame strip (101) and a middle folding frame strip (102); a center frame strip (121) is also provided in the middle of the second folding frame (12); the corner folding frame strip (101) and the middle folding frame strip (102) are hingedly connected, and two symmetrically hinged middle folding frame strips (102) are provided in the middle of the first folding frame (11); and two symmetrically hinged folding frame strips (102) are provided in the middle of the second folding frame (12) on both sides of the center frame strip (121); self-closing hinges (6) are provided at all frame strip hinges, and locking latches (7) are provided on the backs of all frame strip hinges.

3. A raceway type internal circulation aquaculture system fishing net according to claim 2, characterized in that: The mesh adjustment device (4) comprises: a fixed frame (41) and a sliding frame (42) arranged in a stacked manner; the fixed frame (41) and the sliding frame (42) are connected via an inclined slide rail (43); and positioning bolts are provided on the inclined slide rail (43).

4. A raceway type internal circulation aquaculture system fishing net according to claim 3, characterized in that: Screening mesh surfaces (44) of the same specifications are arranged in the fixed frame (41) and the sliding frame (42).

5. The raceway type internal circulation aquaculture system fishing net according to claim 1, characterized in that: The net capacity adjustment device (5) comprises: positioning rods (51) installed on both sides of the first folding frame (11) and the second folding frame (12), and positioning holes (52) provided on the net driving hanger (2).

6. The raceway type internal circulation aquaculture system fishing net according to claim 1, characterized in that: The net capacity adjustment device (5) comprises a scissor rod group (501) arranged between the first folding frame (11) and the second folding frame (12), and sliding adjustment grooves (502) arranged on the first folding frame (11) and the second folding frame (12).

7. A raceway type internal circulation aquaculture system fishing net according to claim 6, characterized in that: The two fixed ends of the scissor rod group (501) are respectively hinged to the middle folding frame bars (102) of the first folding frame (11) and the second folding frame (12); the two sliding ends of the scissor rod group (501) are respectively arranged in sliding adjustment grooves (502) on the first folding frame (11) and the second folding frame (12), and each adjustment groove (502) is also provided with a locking bolt group (503).

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