CN2495101Y

CN2495101Y - Net cage connecting to bottom of pond (or lake)

Info

Publication number: CN2495101Y
Application number: CN01208597U
Authority: CN
Inventors: 张宗涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-03
Filing date: 2001-03-03
Publication date: 2002-06-19
Anticipated expiration: 2011-03-03

Abstract

The utility model discloses a net-pursed net case device adaptable to seawater net case breed aquatics. The net case uses the seabed fixed support fixed on the sea bottom to fix the net case on the sea bottom; a floated link in the upper part uses a floater to float on the water surface; the net case device can overcome the damage to the net case because of the sea wave; besides, the utility model can also overcome the shortcomings of unsafe hidden trouble to the net case breed aquatics, much larger investment cost for the unit water quantity and lower utilization ratio for the water and so on. The utility model can be adaptable to widely applied and popularized in the sea zone for balsa type breed aquatics.

Description

Net cage connecting to bottom of pond (or lake)

Technical field:

The utility model is a kind of cage culture device that is applicable to mariculture.

Background technology:

Employed net cage is " floating type " in the mariculture now, substantially indiscriminately imitate the aufbauprinciple of Raising Fish in Net Box in Reservoir, utilize stone anchor or culture raft frame fixedly to float on the water surface, as shown in Figure 1, its structure is by quadra 1 (rod, bamboo bar or iron pipe are made), and big float 2, dictyosome 3, angle bob 4, limit bob 5 and raft frame 6 are formed, and quadra emerges by big float, the headline of dictyosome links to each other with framework, and the infraclass of dictyosome has the angle to weigh down and the limit bob makes dictyosome open shaping.Such net cage directly is in the fiercest scope of wave effect because of floating on the water surface, form and very stiff and demanding the contacting of wave, thereby the safety of net cage does not ensure, even use firmer steel framework, can keep net cage and not be destroyed, also cause the fierceness vibration of seawater, make fish in the case terrified uneasy and go hither and thither because of wave, cause between fish and the fish, between fish and the net cage run foul of each other and the casualties is serious.A wave in by the end of August, 2000, the net cage that the Rongcheng is in does not have the barrier sea area to place is suffered heavy losses, and fully checking.Therefore, this net cage only limits to use in the bay of barrier, can not promote on a large scale, this in addition net cage also exists because of the little unit of water body area of volume cost of investment is bigger, can only utilize the sea area surface water and the water body availability is low and be difficult to utilize wild defectives such as natural bait.

Summary of the invention:

The utility model has solved exist in the background net cage dangerous, and the fish casualties takes place when wave is arranged, and cost of investment is big, and the water body availability is low and be difficult to utilize defective such as natural bait.

The utility model is achieved in that to prick on the floating guiding principle of dictyosome float, and pricking on the bottom line has weight, adds fixedly guiding principle of bundle one from bottom line one determining deviation on dictyosome, and fixedly there is static line in the spacing system with 20-30cm on the guiding principle; Utilize a determining deviation to squeeze into the short wooden stake short wooden stake well rope of seabed below 3 meters again the seabed fixed mount of purse seine net cage is fixed on the seabed; Utilize dictyosome bottom fixedly the static line on the guiding principle dictyosome is fixed on the fixed mount of seabed, bubble through the water column and dissociate by floating float on the guiding principle in dictyosome top.

Because the utility model top is free, just can dissolve the active force of wave, so there be hidden danger in the utility model along with the wave vibration; According to when the billow, seawater fish has the fierce vibration of the upper strata of escape seawater, and trip is to being subjected to wave to influence the rule of less profundal zone, and the utility model does not have the end, therefore the utility model can allow fish swim over to safe bottom and the collsion damage between fish and the net cage can not take place between fish and the fish; Because the utility model does not have end uncovered, the natural bait of water layer carries out three-dimensional culture not only can to utilize the seabed to reach everywhere, improve the water body availability, and net cage unit of water body cost of investment is less relatively.

Description of drawings:

Fig. 1 is a background technology floating type cage structure schematic diagram

Fig. 2 is the structural representation of the utility model dictyosome

Fig. 3 is a seabed fixed rack structure schematic diagram

Fig. 4 is that the utility model is provided with the direction schematic diagram

Fig. 5 is an another kind of seabed fixed rack structure schematic diagram

Embodiment:

The utility model is made up of dictyosome and the seabed fixed mount that is fixed in the seabed.

As shown in Figure 2: dictyosome is floating 1 by the angle, floating guiding principle 2, little floating 3, angle hang down guiding principle 4, fixedly guiding principle 5, static line 6, bottom line 7, end bob 8, net sheet 9 are formed.

Various guiding principle ropes are the above polyethylene rope of φ 1cm.

There is the angle floating and little floating on the floating guiding principle, can bubbles through the water column floating guiding principle.The angle trim is in the angle of cut place of the floating guiding principle of dictyosome, be the plastic float more than the φ 20cm, little trim is on the floating guiding principle between dictyosome two angles of cut, little floating the be foam plastic float of φ 8-15cm or little plastic float, little floating spacing distance is generally at 40-60cm, when in principle trend being arranged, the floating guiding principle of dictyosome can be bubbled through the water column substantially.Floating guiding principle is made up of two ropes: a rope is worn the bundle net, and a rope is worn the bundle float.

The static line that spacing 20-30cm is fixedly arranged on the guiding principle is used for dictyosome and seabed fixed mount are connected and fixed.Static line is the above poly-second lifting rope of 120 strands of silks of double joint of long 50cm.

The bottom line of dictyosome is pricked has the end to weigh down, so that dictyosome closely contacts with the seabed.Bottom line also is two ropes, wears the bundle net for one, wears the bundle weight for one, is used to prick the bob guiding principle guiding principle rope of weight, and preferably steel wire rope and so on proportion is greater than the rope of seawater.The weight spacing of weighing down on the guiding principle is 40-60cm, and size is as the criterion can make bottom line sink to the seabed.

The angle guiding principle that hangs down is worn and is tied in the floating guiding principle angle of cut of dictyosome with fixedly between the guiding principle angle of cut, is used to strengthen float guiding principle and the fixing pulling force of net sheet between guiding principle.

Bottom line the and fixedly distance between guiding principle should be about 0.5-1m.The standard of spacing is the tightening degree by seabed fixed mount and seabed, and the material of forming the seabed fixed mount has inductility, and fixedly the spacing of the seabed fixing point of seabed fixed mount and this sea area in history the wave peak swing comprehensively determine.If the seabed fixed mount is close to the seabed, the material of forming the seabed fixed mount does not have retractility again, and the spacing of seabed fixing point is less, and bottom line may diminish to zero with the fixing spacing of guiding principle.Otherwise be lengthened to when crest transmits, the dictyosome bottom line end not off sea is a principle.The wave height of coastal waters wave generally is no more than 2 meters, and promptly amplitude is no more than 1 meter, so even the net cage bottom line is not fixed in the seabed, the high 2 meters dictyosomes of wave rise 1 meter at most.

The fixing spacing of guiding principle and floating guiding principle, should be the depth of water of this purse seine net cage when placing the maximum full sea in sea area add this sea area in history maximum wave height add again more than 2 meters.Comply with the vibration ability of wave to strengthen floating guiding principle,, often follow seawater tidal level rise 1-2 rice (Rongcheng one band) because when having billow to take place.

The size that net sheet net is buckled is by the specification decision of preparing to put in a suitable place to breed kind.Netting twine should be to have than the collodion silk of strong pulling force or formal wire for well.Formal wire generally is not less than 15 strands of silks.

Be fixed in the seabed fixed mount in seabed

As shown in Figure 3, the seabed fixed mount is made up of frame well rope 1, dropstone 2, short wooden stake 3, short wooden stake well rope 4.

Short wooden stake is for about long 100cm, and the desiccated wood about φ 15cm is made, and the short wooden stake well rope is generally the polyethylene rope of 1000-1500 thigh silk.The short wooden stake well rope is bundled on the short wooden stake, and the play of short wooden stake is with reference to " algae culturing " P143-145.The effect of short wooden stake and short wooden stake well rope is fixing and the frame well rope of tension seabed fixed mount, makes the frame well rope be close to the seabed.Distance between short wooden stake is the smaller the better, is generally 3-5m.

Dropstone on the fixed mount frame well rope of seabed plays the crystallized ability in hog frame well rope and seabed, and dropstone is fixed between two short wooden stake fixing points of seabed fixed mount frame well rope, and it also can be several can being one.The dropstone size should be that (deducting self buoyancy) is greater than the weight of dictyosome buoyancy more than one times between adjacent two short wooden stake fixing points.

The frame well rope of seabed fixed mount is to be fixed in the seabed by short wooden stake and dropstone, utilize the purse seine net cage fixedly the static line on the guiding principle dictyosome and seabed fixed mount are connected and fixed, finally reach the purpose that the purse seine net cage is fixed in the seabed.

The frame well rope can be the polyethylene well rope rope (1000-1500 thigh silk) that retractility is arranged, the steel wire rope of inductility, it also can be the steel framework that iron pipe, round steel, angle bar etc. are combined into, only use polyethylene well rope rope requirement short wooden stake fixing point and dropstone closeer relatively, steel wire rope is made the frame well rope, dropstone can be dredged, and steel framework then must dropstone.

The direction that is provided with of purse seine net cage is to have certain requirements, as Fig. 4, the arrow indication is a propagation of ocean waves direction, the diagonal of purse seine net cage wants one parallel (meet to) in the direction of propagation of wave, another is then perpendicular to the direction of propagation of wave, so not only can reduce net cage to greatest extent, and can make marine floating thing float, avoid hindering the safety of amassing harm purse seine net cage on the net sheet along the net sheet to the resistance that the propagation of ocean waves produced.

If it is more shallow to place the sea area depth of water of purse seine net cage, wave is big and influenced by wave more frequent, and then four of the seabed fixed mount frame angle fixing points are necessary to strengthen.The method of strengthening has plays two short wooden stakes and intensification, also can be as shown in Figure 5, the frame well rope of forming the seabed fixed mount is made short wooden stake at the suitably outside lengthening 3-5 in the intersection point place at four angles rice to be fixed, the fixing boulder a of binding on the frame well rope at frame exterior angle, the weight of boulder answers several times greater than the buoyancy of dictyosome between frame angle and adjacent two fixing points (should more than hundred jin).Shape is advisable with square, and thickness should approach.Piece stone also can clay replacement of water.

The specification size of purse seine net cage should be decided by placing net cage sea area trend size, and maximum specification will guarantee at a flood current or an ebb current in principle, can make whole fence net cage water body reach the quantity of exchanged water of a times or several times.The specification of purse seine net cage can not be too little, because too little, though the safety of net cage self is unaffected, other advantage of net cage can be too little not obvious because of the casing area, and the length of side of general square purse seine net cage should not be less than 30 meters.

The shape of purse seine net cage setting be generally square or " " shape.

If it is bigger that the sea area trend of purse seine net cage is set, depending merely on the little floating floating guiding principle of net cage that can not make when trend bubbles through the water column, can add on the floating guiding principle with the angle floating as big float, and corresponding fix this floating floating guiding principle place with fixedly wear between the guiding principle prick hang down guiding principle with strengthen floating guiding principle and fixedly between guiding principle the pulling force of net sheet (netting twine more slightly has enough pulling force, then must not add vertical guiding principle), and suitably strengthen the crystallized ability of seabed fixed mount.

Claims

1, a kind of Net cage connecting to bottom of pond (or lake), dictyosome is by float, weight, the floating guiding principle that is positioned at dictyosome top is formed with the bottom line that is positioned at the dictyosome bottom, it is characterized in that described float pricks admittedly on the floating guiding principle of dictyosome, described weight is pricked admittedly on the bottom line of dictyosome, add fixedly guiding principle of bundle one from bottom line one determining deviation on dictyosome, fixedly there is static line in the spacing system with 20-30cm on the guiding principle; Utilize a determining deviation to squeeze into the short wooden stake short wooden stake well rope of seabed below 3 meters again the seabed fixed mount of purse seine net cage is fixed on the seabed; Utilize dictyosome bottom fixedly the static line on the guiding principle dictyosome is fixed on the fixed mount of seabed, dictyosome top utilizes the float that floats on the guiding principle to bubble through the water column and dissociate.

2, device according to claim 1 is characterized in that on the fixed mount of seabed between two fixing points being one or several dropstone to be arranged to strengthen the crystallized ability of seabed fixed mount.

3, device according to claim 1 is characterized in that the purse seine net cage does not have end uncovered.

4, device according to claim 1 is characterized in that the fixedly guiding principle of purse seine net cage and the spacing of bottom line are 0.5-1 rice.

Depth of water when 5, device according to claim 1, the spacing that it is characterized in that the fixedly guiding principle of purse seine net cage and floating guiding principle equal the maximum full sea in this sea area add this sea area in history maximum wave height add more than 2 meters.

6, device according to claim 1, it is characterized in that the purse seine net cage be provided with direction be a diagonal meet to or be parallel to the direction of propagation of wave, another diagonal is then perpendicular to the direction of propagation of wave.

7, device according to claim 1, it is characterized in that being added with on the floating guiding principle of purse seine net cage big when floating, will be at floating guiding principle and fixedly wear on the net sheet between the guiding principle and prick a vertical guiding principle strengthening floating guiding principle and the fixing pulling force of net sheet between guiding principle, and the crystallized ability of corresponding reinforcement seabed fixed mount.