CN201243550Y

CN201243550Y - Bird-proof net for cultivation net cage

Info

Publication number: CN201243550Y
Application number: CNU2008201516154U
Authority: CN
Inventors: 石建高; 王鲁民
Original assignee: East China Sea Fishery Research Institute Chinese Academy of Fishery Sciences
Current assignee: East China Sea Fishery Research Institute Chinese Academy of Fishery Sciences
Priority date: 2008-08-04
Filing date: 2008-08-04
Publication date: 2009-05-27
Anticipated expiration: 2018-08-04

Abstract

A bird prevention net for a cultivation net cage relates to a bird prevention net of a net cage. The utility model provides a bird prevention net for a cultivation net cage, which uses a netting weaved by luminous net twines. The bird prevention net is characterized in that the netting of the luminous net twines is a single dead lock type netting which has the mesh size of 50 mm; 12 isosceles trapezoid nettings of the mesh are sewed into an annular netting, the inner ring and the outer ring of the annular netting are respectively 438 and 1338 in mesh; the side edge of the annular netting uses high-strength polyamide filament threads with the diameter of 3.00 mm, for purfle and reinforcement; the meshes of the inner ring and the outer ring use high-strength polyamide filament threads with the diameter of 3.0 mm, are respectively and evenly contracted and sewed to high-strength polyethylene rete cords with the length of 15.5 m and 47.3 m by using the transverse hanging ratio of 0.707 after the annular netting is reinforced, thus, the bird prevention net for a cultivation net cage is obtained after rete cords are installed. The utility model is used as a bird prevention net for a cultivation net cage.

Description

A kind of fish culture net cage bird prevention net

Technical field:

The utility model relates to the fish culture net cage bird prevention net.

Background technology

High density polyethylene (HDPE) (HDPE) framework net cage with state in its water can be divided into floating, three kinds of the formula of diving and elevation (over-and-under) types; HDPE framework net cage with its culture object be divided into cultured large yellow croaker with HDPE framework net cage, culture grouper with HDPE framework net cage with to culture U.S. snapper multiple with HDPE framework net cage etc.As the buoyancy framework, the buoyancy frame shape has circle, hexagon, square and primary-secondary type etc. to HDPE framework net cage with the floating pipe of HDPE.The aquatic products technical field with net cage outside floating pipe girth be that 50m, net cage handrail girth are that the cultured large yellow croaker of 46.9m is called cultured large yellow croaker usefulness floating circular HDPE framework net cage with the floating circular high-density polyethylene framework net cage, this fish culture net cage wind wave resistance performance is good, cost is lower, easy to operate, the district is widely used in China East Sea.

Cultured large yellow croaker uses floating circular HDPE framework net cage in breeding process, large yellow Crocker is usually inhabited the sea area when being active in top layer, net cage waters birds catch or peck wound, these birds or directly hold large yellow Crocker in the mouth, seriously peck and hinder large yellow Crocker (seriously pecked and hinder large yellow Crocker generally slowly death in net cage), these birds cause heavy economic losses all for the cage culture family every year, and annual each cultured large yellow croaker of giving of birds causes several thousand even the economic loss of units up to ten thousand with floating circular HDPE framework net cage according to statistics.For protection net cage large yellow Crocker avoids sea area birds injury or attack, some raiser uses the way of setting up drift net aloft to tackle or catch these birds in the breed sea area, and its shortcoming is that the anti-bird method of this tradition may the people twine network death for causing the part birds to be set up drift net in the air; Some raiser uses stone, club etc. to drive the mode of birds in the breed sea area, its shortcoming is the anti-bird method of this tradition " people catches up with in the front, bird back come " or " people walks in the front, bird back come ", poor effect when it is avoided these sea area birds injuries or attack protection net cage large yellow Crocker; Perch in the sea area on the problem of birds injury net cage large yellow Crocker, the cage culture family is at one's wit's end.In addition, traditional cultured large yellow croaker can not provide alarming sign with floating circular HDPE framework net cage and the major accident that crashed through or damage by passing ships takes place in dark surrounds, cause the broken fish of net cage frame breakage or net to escape chain reactions such as net, this net cage accident brought heavy economic losses both for the cage culture family, can cause economic dispute between raiser and shipowner again.How to prevent that the sea area from perching birds injury net cage large yellow Crocker is aquatic products technical field people problems anxious to be solved with preventing that passing ships from crashing through net cage equipment.

The utility model content

The technical problem that the utility model need solve provides the bird prevention net that a kind of floating circular high-density polyethylene framework net cage of cultured large yellow croaker is used.

The technical solution of the utility model adopts the etting of luminous netting twine braiding, the etting that it is characterized in that the braiding of luminous netting twine is single fast knot type etting of size of mesh 50mm, becomes an inner and outer rings to be respectively 438 orders, 1338 purposes annular etting by the trapezoid joining of 12 above-mentioned meshes; The high-strength polyamide fibre line fringing reinforcement of diameter 3.0mm of this ring network surple edge; Behind the annular reinforcing on the inner and outer rings mesh adopt the high-strength polyamide fibre line of diameter 3.0mm evenly to contract respectively on the high strength polyethylene rete cord that is sewn to long 15.5m, 47.3m with 0.707 horizontal hanging ratio, the dress guiding principle finishes and just obtains the fish culture net cage bird prevention net; Fish culture net cage is covered the handrail top that the handrail girth is the floating circular high-density polyethylene framework net cage of 46.9m with bird prevention net, and the horizontal hanging ratio with 0.992 adopts the common polyethylene rope of diameter 8mm that the outer shroud rete cord is evenly contracted to stitch to prick and ties up to the net cage handrail of long 46.9m.

The utility model has the advantages that bird prevention net is after installing on the net cage, bird prevention net just covers the main activities zone of fish in the net cage fully, can't catch or peck wound being positioned at cultured large yellow croaker under the bird prevention net even birds stand on the bird prevention net also, anti-bird effect is obvious, and bird prevention net can send fluorescence in dark surrounds, to passing ships or culture workboat and can play the alarming sign effect.The cost of bird prevention net that the utility model relates to deduction bird prevention net, the raiser uses every the net cage in back can reduce about more than 6000～9000 yuan of the economic loss that birds are caused the large yellow Crocker infringement every year, and economic effect is obvious.The utility model uses annular bird prevention net and does not use the circular bird prevention net of totally enclosed type, neither the bird effect is prevented in influence, make things convenient for breeding bait to throw something and feed, save the bird prevention net cost again, also overcome the circular bird prevention net of totally enclosed type sagging bigger defective under the deadweight effect simultaneously, the utility model bird prevention net is easy for installation, and economic benefit, ecological benefits are remarkable.

Description of drawings

Fig. 1, expression be that the trapezoid etting of 12 same sizes is united and cut out schematic diagram;

Fig. 2, trapezoid etting schematic diagram;

Fig. 3, expression be that 12 trapezoid joinings become an annular etting schematic diagram;

Fig. 4, be cultured large yellow croaker with floating circular HDPE framework net cage bird prevention net schematic diagram;

Fig. 5, the assembling schematic diagram of expression net cage bird prevention net on net cage.

Embodiment

Implement best way of the present utility model below in conjunction with accompanying drawing 1～5 explanation:

Among Fig. 11 represents the cutting limit, and 2 represent a trapezoid etting, and on behalf of a horizontal stroke, vertical order, 3 be respectively 887.5 orders, 141.5 purpose rectangle ettings, and on behalf of sharp edge, 4 cut out direction.

Among Fig. 2 21 represents the last base of trapezoid etting, and 22 represent the hypotenuse of trapezoid etting, and 23 represent the bottom of trapezoid etting.

Among Fig. 3 31 represents the bottom of trapezoid etting, and 32 represent the last base of trapezoid etting, and 33 represent a trapezoid etting, the piece between the adjacent two trapezoid etting hypotenuses of 34 representatives.

Among Fig. 4 41 represents the interior ring rete cord of bird prevention net, and 42 represent the outer shroud rete cord of bird prevention net, and 43 represent an etting, the piece between the adjacent two etting hypotenuses of 44 representatives.

Piece between the adjacent two etting hypotenuses of among Fig. 5 51 representative, 52 represent the interior ring rete cord of bird prevention net, 53 represent the outer shroud rete cord of bird prevention net, 54 represent the net cage handrail, 55 representative seam bundle net cage handrails and the bird prevention net outer shroud rete cord common polyethylene rope of 8mm, 56 represent the floating pipe of net cage outward, and 57 represent the net cage bird prevention net, 58 represent floating pipe in the net cage, and 59 represent the net cage armrest support.

The luminous netting twine that adopts diameter 3.30mm is as the net materials of a kind of fish culture net cage with bird prevention net, utilize netting machine or craft the luminous netting twine of diameter 3.30mm to be woven into single fast knot type rectangle caution etting of size of mesh 50mm, better with bird prevention net processing with this single fast knot type rectangle caution etting with caution etting material softness and operability as a kind of fish culture net cage, and it can send fluorescence in the dark after illumination, can play the alarming sign effect.

The processing of net cage bird prevention net is cut out technology with caution etting material:

Get single fast knot type rectangle of size of mesh 50mm and warn one of etting, the T-meshes of rectangle caution etting is that 887.5 orders, N-meshes are 141.5 orders (3 among Fig. 1).Rectangle is warned the vertical dual-side of etting elder generation piece become cylindrical shape, cut out circulation by the hypotenuse of " (1N1B) 46; (2N1B) 29 " [carrying out " the other single pin in limit " during " (1N1B) 46, (2N1B) 29 " expression cutting cut out circulation 46 times, carry out " two other single pin in limit " and cut out and circulate 29 times at any order place on the cylindrical shape base then; The limit is other during cutting represents that with code name N single pin is represented with code name B] be cut into a parallelogram caution etting; Warn acute angle end points number to the 111 order places of etting again from parallelogram, cutting out direction (4 among Fig. 1) with sharp edge also cuts out circulation by the hypotenuse of " (1N1B) 46; (2N1B) 29 " and cuts a trapezoid etting [2 among Fig. 1, Fig. 2, several 36 orders of the bottom of this trapezoid etting (23 among Fig. 2) order, go up several 111 orders of base (21 among Fig. 2) order, N-meshes 141.5 orders]; Again from warning acute angle end points number to the 111 order places of etting, cut out direction (4 among Fig. 1) with sharp edge and also cut out the trapezoid etting [2 among Fig. 1, Fig. 2, several 36 orders of the bottom of this trapezoid etting (23 among Fig. 2) order, last several 111 orders of base (21 among Fig. 2) order, N-meshes 141.5 orders] that another piece same size is cut in circulation by the hypotenuse of " (1N1B) 46; (2N1B) 29 "; The trapezoid etting that adopts identical cut-out method to cut out down successively can to cut 12 same sizes altogether [2 among Fig. 1, Fig. 2, several 36 orders of the bottom of this trapezoid etting (23 among Fig. 2) order, go up several 111 orders of base (21 among Fig. 2) order, N-meshes 141.5 orders].Unite at etting and to cut out when calculating, consider etting through cutting out with piece after, can cause the variation of etting material T-meshes; On etting, whenever cut a hypotenuse, etting lateral lost halver, and hypotenuse of every piece, etting laterally increases halver.

The processing of net cage bird prevention net is with warning joining and reinforcement technology:

It is that the high-strength polyamide fibre line of 3.0mm carries out order successively with the hypotenuse of 12 trapezoid ettings (34 among Fig. 3) and order is compiled stitched that orders such as employing are compiled the stitch rugosity, the last base acute ends point of adjacent two trapezoid ettings must link to each other successively during stitching, obtuse angle, the bottom end points of adjacent two trapezoid ettings must link to each other successively, until 12 trapezoid joinings are become an annular etting (Fig. 3); The bottom of 12 trapezoid ettings (31 among Fig. 3) all be positioned on the ring of annular etting (Fig. 3) and on the ring mesh add up to 438 orders, and the last base of 12 trapezoid ettings (32 among Fig. 3) all be positioned on the outer shroud of annular etting (Fig. 3) and on the outer shroud mesh add up to 1338 orders; The mode that adopts the etting fringing is carried out reinforcing with the high-strength polyamide fibre line of diameter 3.0mm to the etting edge of annular etting (Fig. 3), with the dress guiding principle edge of guaranteeing sub-circular etting cracky not.

The processing of net cage bird prevention net is with warning etting and rete cord assembly technology:

Horizontal hanging ratio with 0.707 evenly contracts 438 order meshes on the interior ring of annular etting on the high strength polyethylene rete cord that is sewn to long 15.5m, rete cord rugosity 6mm; Horizontal hanging ratio with 0.707 evenly contracts 1338 order meshes on the outer shroud of annular etting on the high strength polyethylene rete cord that is sewn to long 47.3m, rete cord rugosity 6mm; The high-strength polyamide fibre line of employing diameter 3.0mm contracts etting to stitch to prick and ties up on rete cord during the dress guiding principle; Just obtained fish culture net cage bird prevention net (Fig. 4) after the dress guiding principle finishes, fish culture net cage is 15.5m with interior ring rete cord (41 among Fig. 4) length of bird prevention net behind the dress guiding principle, and fish culture net cage is 47.3m with outer shroud rete cord (42 among Fig. 4) length of bird prevention net behind the dress guiding principle; Fish culture net cage is 4.9m with the interior ring diameter of bird prevention net behind the dress guiding principle, and fish culture net cage is 14.9m with the outer ring diameter of bird prevention net behind the dress guiding principle.

The assembling of fish culture net cage bird prevention net on net cage:

Fish culture net cage is 15.5m with interior ring rete cord (52 among Fig. 5) length of bird prevention net (57 among Fig. 5) behind the dress guiding principle, is 47.3m and adorn fish culture net cage behind the guiding principle with outer shroud rete cord (53 among Fig. 5) length of bird prevention net (57 among Fig. 5).During the assembling of bird prevention net on net cage, to adorn that fish culture net cage covers handrail (54 among Fig. 5) top that handrail (54 among Fig. 5) girth is the floating circular HDPE framework net cage of 46.9m with bird prevention net (57 among Fig. 5) behind the guiding principle, fish culture net cage evenly contracts on the net cage handrail that is sewn to long 46.9m with 0.992 horizontal hanging ratio with the high strength polyethylene rete cord (53 among Fig. 5) of the long 47.3m of bird prevention net (57 among Fig. 5); Prick the common polyethylene rope (55 among Fig. 5) that the rope of tiing up rete cord and net cage handrail adopts diameter 8mm during the dress guiding principle, finish the installation of fish culture net cage bird prevention net.

Claims

1, a kind of fish culture net cage bird prevention net, adopt the etting of luminous netting twine braiding, the etting that it is characterized in that the braiding of luminous netting twine is single fast knot type etting of size of mesh 50mm, becomes an inner and outer rings to be respectively 438 orders, 1338 purposes annular etting by the trapezoid joining of 12 above-mentioned meshes; The high-strength polyamide fibre line fringing reinforcement of diameter 3.0mm of this ring network surple edge; Behind the annular reinforcing on the inner and outer rings mesh adopt the high-strength polyamide fibre line of diameter 3.0mm evenly to contract respectively on the high strength polyethylene rete cord that is sewn to long 15.5m, 47.3m with 0.707 horizontal hanging ratio, the dress guiding principle finishes and obtains the fish culture net cage bird prevention net.

2, a kind of fish culture net cage bird prevention net according to claim 1 is characterized in that high strength polyethylene rete cord rete cord rugosity 6mm.

3, a kind of fish culture net cage bird prevention net according to claim 1 and 2 is characterized in that fish culture net cage is evenly contracted on the net cage handrail that is sewn to long 46.9m with 0.992 horizontal hanging ratio with the high strength polyethylene rete cord of the long 47.3m of bird prevention net.