CN201194502Y

CN201194502Y - Device for automatically cleaning ring-shaped frame style net cage by tidal wave underwater

Info

Publication number: CN201194502Y
Application number: CNU200820012174XU
Authority: CN
Inventors: 敖志辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-17
Filing date: 2008-04-17
Publication date: 2009-02-18
Anticipated expiration: 2018-04-17

Abstract

The utility model relates to a circular frame-type device for automatically cleaning underwater net cages in tidal waves, which relates to agriculture and maritime floating-type net cage cultivation. A set of circular frame is arranged in a floating-type round cultivation net cage, and the circular frame has the shape and the size basically identical to those of the net cage and is made of material with smaller specific gravity; the circular frame and a strip brush are assembled together to form a part, namely, a circular frame-type tidal wave brush, the underside of which is connected with a frame-type sinker through a connecting rope to form a device; the device can depend on the variance of the tide and the rise and the fall of ocean waves to mutually transform the gravity and the buoyancy and realize the up-and-down movement to the net cage so as to clean netting. The utility model has the advantages of energy conservation, emission reduction, labor conservation and environmental protection.

Description

The device of automatically cleaning ring-shaped frame style net cage by tidal wave underwater

Technical field

The utility model relates to agricultural, marine floating type cage culture, to the automatic at any time under water a kind of device that cleans of net cage.

Technical background

Present marine cage culture, net cage places seawater for a long time, and some marine organisms will be attached on the etting, thereby has increased the weight of net cage, has influenced the inside and outside water body exchange of net cage, and some animals also can strive bait with material culture and take oxygen by force.Eliminate the method for these attachments at present, mainly be manually to change etting, remove attachment through Exposure to Sunlight, beating, this artificial cleaning is carried out on the coast, can cause certain pollution to seashore, the disembarkation of ship haul etting also can consume diesel oil and discharging carbonic acid gas.The cleaning method of some hand control machinery directly cleaned net cage under water in recent years, and these methods all must rely on power source, the diesel engine oil consumption, and the motor power consumption must have the diver to operate under water.

Above-mentioned method all exist take a lot of work, power consumption and pollution problem.

The utility model content

In order to remove stained thing from the source supernatant, make it to be difficult on etting, adhere to, survive, avoid artificial cleaning, hand control machinery cleaning net cage to take a lot of work, consume energy and to the pollution of sea environment.

The utility model adopts a kind of device, is that power cleans net cage at any time under water automatically with tide and wave.

The technical scheme that the utility model technical solution problem is adopted is: install a cover in existing fish culture net cage inside additional and fit together with net cage peripheral shape and essentially identical annular framework and the rectangular brush of being made by plastic tube of size, form parts-ring-shaped frame wave brush, framework is formed a device below by connection cord connection box posture sinker.This device can rely on the variation of morning and evening tides and dipping and heaving conversion mutually between gravity and buoyancy of wave, realizes net cage is moved up and down, and reaches the purpose of scrubbing to etting.The beneficial effects of the utility model are: improve the agricultural standardization level of production, reduce floating type cage culture cost, promotion and the growth of protection material culture pollution-free healthy, energy-conservation, reduction of discharging, saving of labor, environmental protection.

Description of drawings

The method of the utility model being implemented below in conjunction with accompanying drawing is described further:

Fig. 1 is the assembly drawing of the utility model ring-shaped frame wave brush.(5) are rectangular brushes among the figure, and (6) are the annular frameworks, and (7) are Ω shape snap rings.

Fig. 2-the 1st, the utility model ring-shaped frame wave is brushed at seawater at ebb tide, the residing position of circular relatively net cage cutaway view, (5) are rectangular brushes among the figure, (6) be the annular framework, (7) are Ω shape snap rings, and (8) are to tighten rope, (9) be connection cord, (10) are the frame-type sinkers.

Fig. 2-the 2nd, the utility model ring-shaped frame wave is brushed when high tide, the residing position of circular relatively net cage cutaway view, (1) is the upper frame of circular net cage among the figure, (2) are circular net cage floats, (3) be etting, (4) are the bottom frameworks (sinker) of circular net cage.

Fig. 3 is the local amplification view of Fig. 2-1, and annular framework (6) is fixed together rectangular brush (5) by the bolt on the Ω shape snap ring (7) among the figure, and (1) is the upper frame of circular net cage among the figure, and (3) are ettings, and (8) are to tighten rope, and (9) are connection cords.

Fig. 4 is the structural representation of double-layer frame formula tide brush, and (5) are rectangular brushes among the figure, and (6) are the annular frameworks, and (7) are Ω shape snap rings.

Embodiment

As Fig. 1, utilize existing standard component, the annular framework (6) that has cross plastic three-way, four-way are dressed up the PE plastic tube by circular net cage set of dimensions in the middle of is assembled into a ring-shaped frame wave brush (see Fig. 3 local amplification view) with bolt with rectangular brush (5) by Ω shape snap ring (7).

Ring-shaped frame wave brush is put into circular net cage, will tighten rope (8) and pass the inboard hole of Ω shape snap ring (7), upper end and etting (3) upper edge is fixed on the upper frame (1) of circular net cage jointly.Be fixed on jointly on the underframe (sinker) (4) of circular net cage with etting (3) lower edge below, the length of tightening rope (8) is highly identical with etting (3), etting (3) with tighten the gravity effect that rope (8) is subjected to the bottom framework (sinker) (4) of circular net cage jointly, always to keep tensioned state.The button nose is arranged at Ω shape snap ring (7) bottom, is used for being connected of connection cord (9) and following frame-type sinker (10).

In Fig. 2-1, the position on sea when A represents high tide, B represents the seawater position on sea at ebb tide, C represents the position in seabed.The upper-lower position of the relative seabed C of circular net cage is by the sea decision, and the upper-lower position in relative seabed, sea is determined by the tide is flowing and ebbing.

During Fig. 2-2 expression high tide, the ring-shaped frame wave is brushed under the action of gravity of frame-type sinker (10), moves downward the bottom of circular net cage.Fig. 2-1 expression when seawater at ebb tide, frame-type sinker (10) falls into the seabed, ring-shaped frame wave brush is not subjected to the influence of frame-type sinker (10) gravity, upwards runs to the top (position on sea) of circular net cage by self buoyancy.The moving up and down of the relative etting of this gauze brush can reach the scrubbing action to etting.

General tidal range of culturing the sea area is all more than 5 meters, and the net cage height is generally 3-5 rice, and tidal range can satisfy the stroke requirement of ring-shaped frame wave gauze brush.Tidewater rises and move back twice every day, can satisfy the motion frequency of ring-shaped frame wave brush basically.And wave can improve frequency and speed that net cage moves up and down greatly.When wave formed on the sea on net cage top, net cage can rise to certain height by wave with the float on the net cage, and moment is fallen back to original position again then, and this motion that makes the ring-shaped frame wave brush relative etting more has impulsive force.

The expression state of connection cord (9) at ebb tide and at the incoming tide respectively in Fig. 2-1 and Fig. 2-2, the length of connection cord (9) can be according to the depth and the net cage height setting of culturing the sea area, ought can make frame-type sinker (10) break away from the seabed in principle at the incoming tide, with the ring-shaped frame wave swishing sound to the bottom of net cage, the ring-shaped frame wave is brushed be raised to the top, be frame-type sinker (10) (the frame-type sinker can be made with the bending of iron and steel rod) below the connection cord (9), the actual weight of frame-type sinker (10) in seawater should be decided according to the buoyancy that net cage float (2) and annular framework (6) are produced.

The buoyancy that annular framework (6) produces and the counterweight of frame-type sinker (10) can be calculated according to following method:

With girth is that 18 meters floating type circular net cages are example (below be converted into decimetre):

Adopt outer through being: d=1.1 decimetre, wall thickness are that the PE plastic tube of δ=0.136 decimeter is done the annular framework

Then the area of section of annular plastic tube is: S=π r ²=3.14 * 0.55 ²=0.95 decimeter ²

The diameter of annular framework is: D=L/ π=18 * 10/3.14=57.3 decimetre

Then the total length of annular plastic tube is: L=18 * 10+2D=18 * 10+2 * 57.3=294.6 decimetre

Then the cumulative volume of annular plastic tube is: V=SL=0.95 * 294.6=279.9 decimetre ³

By sea water specific gravity be: d=1 is conservative to be calculated, and then the annular framework can produce 279.9 kilograms buoyancy at least in seawater.

The gravity of annular framework own can calculate by following method:

PE plastic tube wall thickness is: δ=0.136 decimeter (tabling look-up: adopt SDR13.6)

The section girth of PE plastic tube is: 1=2 π R=π D=3.14 * 1.1=3.45 decimetre

The own vol of PE plastic tube is: V=1 * L * δ=3.45 * 294.6 * 0.136=138.2 decimetre ³

The proportion of PE plastics is: d=1.3

Then the deadweight of annular framework is: G=dV=1.3 * 138.2=179.7 kilogram

The net buoyancy that annular framework (6) produces in water is: F is floating=279.9-179.7=100.2 kilogram only, and the buoyancy that average every linear meter can produce is: F is flat to float=100.2/18=5.56 kilogram/rice.

The actual counterweight of frame-type sinker (10) can be selected according to aforementioned calculation, can produce the net weight power more than 200 kilograms in principle in seawater.Consider to strengthen the weight of frame-type sinker (10) under net cage float (2) capacity and the net cage bulk strength prerequisite as far as possible, when high tide, can strengthen the dynamics of scrubbing of brush body like this.

Section as Fig. 3 rectangular brush of the present utility model (5) bottom parts has adopted

The shape structure.When this structure can effectively prevent rectangular brush (5) with etting (3) friction the stress of brush body root is concentrated, prolonged the service life of brush body.

The large-scale circular net cage, or the net cage height wants corresponding increase frame strength during greater than tidal range, can adopt bilayer or multistory frame to be linked to be integral body in case of necessity, to satisfy intensity and the tidal range problem (see figure 4) less than the net cage height.

Claims

1, the device of automatically cleaning ring-shaped frame style net cage by tidal wave underwater, by the centre have+the annular framework and the base plate section of word be

The rectangular brush of shape, with holes by the side, having the Ω shape snap ring of detaining nose below is bolted together, form parts---ring-shaped frame wave brush, Ω shape snap ring inboard on these parts is porose, tighten rope and from the hole, pass with the net cage upper and lower frames and be connected,, form a device below by connection cord connection box posture sinker.It is characterized in that: the annular framework inboard of ring-shaped frame wave brush is tightened rope and is passed, and connection cord connection box posture sinker is arranged below.

2, according to claim 1, the device of automatically cleaning ring-shaped frame style net cage by tidal wave underwater is characterized in that: the ring-shaped frame wave brush after the assembling is annular, and the centre has+cabinet frame.

3, according to claim 1, the device of automatically cleaning ring-shaped frame style net cage by tidal wave underwater is characterized in that: Ω shape snap ring is inboard porosely to be used to tighten rope and to pass, and the button nose is arranged below by connection cord connection box posture sinker.

4, according to claim 1, the device of automatically cleaning ring-shaped frame style net cage by tidal wave underwater, it is characterized in that: rectangular brush base plate section studs with the outline of brush body one side and is made up of three waveforms, middle wave is higher than the equal and opposite in direction of both sides, symmetrical wave, wave is made up of circular arc and tangent line, and the end of wave is to be connected with the tangent line transition by two short lines.