The water-inflow and drain valve door gear of seawater aquaculturing pond
Technical field:
The utility model relates to aquaculture, particularly seawater aquaculturing pond water-inflow and drain valve door gear.
Background technology:
Existing aquaculture pond causes water quality deterioration owing to the residual bait in the pond, the excreta of fishes and shrimps etc. are deposited in Chi Dihui, influences culture benefit, valve need be set usually the good dirt of sewage is drained, and injects new water.But at seawater aquaculturing pond valve is set, general valve is as easy as rolling off a log to be become rusty by sea water intrusion extremely, and service life is extremely short.Therefore many raisers have no alternative but stretch into from well head with the plugging than growing that an external diameter cooperates with the drainpipe internal diameter and are inserted into the draining mouth of pipe, when needs draining and water inlet, plugging is extracted, but it is relatively more difficult when stopping up, because the draining mouth of pipe is below the water surface, also far away apart from well head, need repeatedly to explore to find the draining mouth of pipe accurately, waste time and energy.
Summary of the invention:
The purpose of this utility model provides a kind of water-inflow and drain valve door gear that is suitable for seawater aquaculturing pond, opens and closes quick and easy.
The water-inflow and drain valve door gear of a kind of seawater aquaculturing pond of the utility model, the drainpipe inner port places pond bottom, it is interior also vertically up that external port extends to the outer pit shaft of dyke, it is characterized in that fixing a support in the upper inside wall of pit shaft, have the screw that cooperates with wire rod thread at the center of support, turning handle is equipped with in the upper end of screw mandrel, and the bottom installs the stifled dish of diameter greater than the drainpipe external port.
In the water-inflow and drain valve door gear of above-mentioned seawater aquaculturing pond, described stifled dish is made by elastomeric material.
In the water-inflow and drain valve door gear of above-mentioned seawater aquaculturing pond, described stifled dish can be made of plastics the hard plectane, at the solid attached rubber layer of the lower surface of plectane.
Stifled dish of the present utility model is made by elastomeric material, and by screw mandrel control lifting, realizes the keying to drainpipe, handled easily.Because whole device all uses non-corrosive material to make, and is not subject to sea water intrusion, prolong service life, and the relative cost of breed reduces.
Description of drawings:
Fig. 1 is the utility model example structure schematic diagram.
Fig. 2 is the local enlarged diagram in K place among Fig. 1.
Among the figure, 1, the pond; 2, drainpipe; 21, inner port; 22, external port; 3, pit shaft; 4, turning handle; 5, screw mandrel; 6, support; 7, siphunculus; 71, water inlet; 72, sewage draining exit; 73, valve plate; 74, trigger piece; 81, nut; 82, pad; 83, plectane; 84, rubber layer;
Embodiment:
With reference to accompanying drawing 1, Fig. 2, embodiment is the water-inflow and drain valve door gear of seawater aquaculturing pond, the inner port 21 of drainpipe 2 places the bottom in pond 1, external port 22 extends to the center and vertically up in the outer pit shaft of dyke 3, fix a support 6 in order to support screw 5 in the upper inside wall of pit shaft, have the screw that cooperates with wire rod thread at the center of support 6, turning handle 4 is equipped with in the upper end of screw mandrel, the bottom installs stifled dish or the hemispherical plug of diameter greater than the drainpipe external port, in order to the external port 22 of shutoff drainpipe.Being somebody's turn to do stifled dish or hemispherical plug can be made by elastomeric material, such as polyurethane or rubber etc.Should also can be made of plastics hard plectane 83 by stifled dish, at the solid attached rubber layer 84 of the lower surface of plectane 83, rubber layer 84 can stick to the lower surface of hard plectane 83 with adhesive, or arranges the lower surface that is fastened on hard plectane 83 with circumferential screw.The centre bore of plectane 83 is stretched in the bottom of screw mandrel 5, with pad 82 and nut 81 plectane 83 is fixed on the bottom of screw mandrel 5 then up and down respectively.Described support 6 and screw mandrel 5 are made by non-corrosive material, and be such as stainless steel or highstrenghtpiston, dead to prevent by the seawater rust.
Be provided with the siphunculus 7 that runs through barrel at pit shaft 3, breeches pipe is made in the outer end of siphunculus, is respectively water inlet 71 and sewage draining exit 72, and a valve plate 73 and the trigger piece 74 of controlling valve plate are set at the prong place.During operation, earlier valve plate 73 is sealed water inlet 71, turn turning handle 5, stifled dish is risen, the sewage of pond inner bottom part and dirt are discharged from sewage draining exit 72, pull trigger piece 74 then and make valve plate 73 seal sewage draining exit 72 and open water inlet 71, pump into and replenish clean seawater, last oppositely turn turning handle 5 is sealed drainpipe and is got final product.