阅读说明：本技术 一种大眼幼体放流装置 (Device is released to megalopa larva ) 是由 曹迎庆 徐俊华 田荣伟 张响 付言言 刘锁明 胡涛 孙春芳 倪明辉 杨国洪 金国 于 2019-11-20 设计创作，主要内容包括：本发明涉及大眼幼体养殖技术领域,具体涉及大眼幼体的放流装置,解决了现有大眼幼体在放流养殖时的不便和在放流过程中幼苗之间挤压碰撞,受伤率高,成活率低的问题,它包括放流架、U型放流箱、支撑轴、驱动支撑轴和放流坡,所述U型放流箱通过共轴设置的支撑轴和驱动支撑轴可转动地安装在放流架上,在驱动支撑轴的外端设有转动轮,放流坡固定安装在放流架上,放流坡的高端与U型放流箱处于放流出苗状态时的出苗边对接,放流坡为梯形坡并在两侧固定设置有挡边,放流坡的上端宽度与U型放流箱的轴向宽度相对应；本发明操作便捷,可以大大降低螃蟹幼苗的受伤死亡率,保证了螃蟹幼苗的成活率。(The invention relates to the technical field of megalops culture, in particular to a releasing device for megalops, which solves the problems of inconvenience in releasing culture and extrusion collision between seedlings in the releasing process of the existing megalops, and has high injury rate and low survival rate, and comprises a releasing frame, a U-shaped releasing box, a supporting shaft, a driving supporting shaft and a releasing slope, wherein the U-shaped releasing box is rotatably arranged on the releasing frame through the coaxially arranged supporting shaft and the driving supporting shaft; the method is convenient and fast to operate, can greatly reduce the injury death rate of the crab seedlings, and ensures the survival rate of the crab seedlings.)

1. A device is released to megalops, its characterized in that: comprises a releasing frame (1), a U-shaped releasing box (2), a supporting shaft (3), a driving supporting shaft (4) and a releasing slope (5), the U-shaped releasing box (2) is rotatably arranged on the releasing frame (1) through a supporting shaft (3) and a driving supporting shaft (4) which are coaxially arranged, the outer end of the driving supporting shaft (4) is provided with a rotating wheel (6), a discharging slope (5) is fixedly arranged on the discharging frame (1), the high end of the discharging slope (5) is butted with a seedling emergence edge when the U-shaped discharging box (2) is in a discharging seedling emergence state, the discharging slope (5) is a trapezoidal slope and is fixedly provided with baffle edges (51) at two sides, the width of the upper end of the discharging slope (5) corresponds to the axial width of the U-shaped discharging box (2), the width of the lower end is larger than the axial width of the U-shaped discharging box (2), the flow seedling emergence surface of the discharging slope (5) is smooth, an adjusting piece (7) for homogenizing the discharge of the megalopas is arranged on the discharging slope (5) along the width direction.

2. The larval releasing device according to claim 1, wherein: the adjusting piece (7) is an automatically deflected smooth arc-shaped plate (71) or a freely rolling soft elastic roller (73).

3. The larval releasing device according to claim 2, wherein: two ends of the smooth arc-shaped plate (71) are arranged on the flanges (51) at two sides of the releasing slope (5) through rotating pins (72).

4. The larval releasing device according to claim 2, wherein: the soft elastic roller (73) consists of a mandrel (731) and a sponge sleeve (732), and the sponge sleeve (732) is sleeved on the mandrel (731).

5. The larval releasing device according to claim 1, wherein: the releasing slope (5) is provided with a diversion dike (52) along the width direction, a plurality of diversion channels (53) are formed on the releasing slope (5) along the width direction, and the protruding height of the diversion dike (52) is 1-3 mm larger than the thickness of the large-size megalops.

6. The larval releasing device according to claim 1, wherein: a gear set (8) meshed with a driving wheel (81) and a driven wheel (82) is arranged between the outer end of the driving support shaft (4) and the rotating wheel (6), the driven wheel (82) is fixedly installed at the outer end of the driving support shaft (4), the rotating wheel (6) is fixedly installed on the driving wheel (81), and the rotating wheel (6) drives the driving wheel (81) to rotate so as to drive the driven wheel (82) to rotate to control the inclination angle of the U-shaped discharging box (2).

Technical Field

The invention belongs to the technical field of megalopas, and particularly relates to a megalopas releasing device.

Background

The megalopas are the larvae of the later stage daphnia of crabs, which correspond to the larvae of the mythic shrimp stage of shrimps, during the transition from plankton to benthic, many of which can be found on floating algae, the appendages of the megalopas of adults are not two-limbed, abdomen well developed, not folded down to the chest, but extended backward, five pairs of abdominal limbs are used for swimming, at which time the dorsal and lateral processes seen on the later stage daphnia larvae have disappeared.

The megalops is not only inconvenient to flow according to the conventional flow mode when the megalops is cultured in a flow mode, the damage rate is high, the conventional megalops is filled by adopting hand-held containers such as wash basins or spoons, and then the seedlings are directly poured into a water body in a centralized mode, the wash basins or the spoons often impact the larvae in the filling process, so that the larvae are injured or dead, and the megalops are intensively put into the containers and then excessively extrude each other to cause the injury of partial megalops, meanwhile, the whole flow process needs to be filled and poured once, the operation is inconvenient, and the labor intensity of flow is greatly increased. And the whole pot of larvae is directly poured into water for releasing, a large number of seedlings are poured into the water at one time, so that a large number of larvae are collided and extruded, and the larvae are injured or dead. The current mode of releasing, strike between container and the seedling, excessively extrude between seedling and the seedling and collide all can lead to the injury rate high between the in-process of releasing, and the survival rate is low, greatly increased the injury rate and the mortality of seedling. At present, no practical and feasible releasing device exists in the industry, and a large-eye larva releasing device is urgently needed to solve the problems in the existing larva releasing process.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a larval releasing device which can effectively solve the problems of inconvenience in releasing and breeding of the conventional larval and high injury rate and low survival rate caused by extrusion and collision among seedlings in the releasing process.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a device is released to megalops, includes and releases frame, U type release case, back shaft, drive back shaft and release slope, U type release case rotationally installs on releasing frame through coaxial back shaft and the drive back shaft that sets up, is equipped with the rotation wheel in the outer end of drive back shaft, release slope fixed mounting is on releasing frame, the high-end and the U type release case of release slope dock with the limit of emergence when releasing emergence state, release slope is trapezoidal slope and the fixed flange that is provided with in both sides, the upper end width of release slope is corresponding with the axial width of U type release case, the lower extreme width is greater than the axial width of U type release case, the surface of emergence that flows on release slope is smooth surface, be equipped with the regulating part that homogenization megalops flowed along the width direction on release slope.

Preferably, the adjusting piece is a smooth arc-shaped plate capable of automatically deflecting or a soft elastic roller capable of freely rolling.

Preferably, two ends of the smooth arc-shaped plate are arranged on the blocking edges at two sides of the releasing slope through rotating pins.

Preferably, the soft elastic roller consists of a mandrel and a sponge sleeve, the mandrel is sleeved with the sponge sleeve, and two ends of the mandrel are arranged on the blocking edges at two sides of the releasing slope.

Preferably, the releasing slope is provided with a diversion dike along the width direction, the releasing slope is provided with spaced diversion channels along the width direction, and the protruding height of the diversion dike is 1-3 mm larger than the thickness of the large-size megalops.

Preferably, a gear set meshed with the driving wheel and the driven wheel is arranged between the outer end of the driving support shaft and the rotating wheel, the driven wheel is fixedly installed at the outer end of the driving support shaft, the rotating wheel is fixedly installed on the driving wheel, and the rotating wheel drives the driving wheel to rotate so as to drive the driven wheel to rotate to control the inclination angle of the U-shaped discharging box.

Compared with the prior art, the invention has the beneficial effects that:

(1) through being provided with the frame of releasing, rotate the wheel, U type box and the slope of releasing, when releasing, the frame of releasing is fixed on the hull, through the rotation of rotating the wheel, the rotation of slow control U type box of releasing, with U type box opening side to the slope of releasing, the realization is evenly released the crab seedling, and like this, the easy convenient operation during releasing, the individual layer that can not only realize the crab seedling is released, reduce the excessive extrusion probability of crab seedling, striking injured path between container and the crab seedling has been eliminated, can also alleviate intensity of labour, improve the efficiency and the degree of consistency of releasing, reduce the manual cost of releasing.

(2) The adjusting piece and the sub-flow channel are arranged on the releasing slope, the crab seedlings can be guaranteed to be orderly discharged in a single layer through the adjusting piece, the seedlings cannot be extruded and injured or die due to stacking, the adjusting piece can be a smooth arc-shaped plate capable of deflecting automatically or a soft elastic roller capable of rolling freely, the crab seedlings can be discharged in the sub-flow channel through the sub-flow channel, and the crab seedlings are prevented from being extruded and injured due to excessive lateral extrusion, so that the overlapping extrusion and the lateral extrusion in the thickness direction can be effectively controlled, the injury rate and the death rate of the crab seedlings in the discharging process can be greatly reduced, and the survival rate of the crab seedlings is guaranteed.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the installation structure of the U-shaped release box;

FIG. 3 is a schematic view of the construction of the present invention with a soft elastic roller installed on the discharge slope;

FIG. 4 is an enlarged view of the sectional structure A-A in FIG. 3;

FIG. 5 is a schematic structural view of a smooth arc plate in embodiment 1 of the present invention;

FIG. 6 is a schematic view of the structure of a soft elastic roller in example 2 of the present invention;

in the figure: 1-a release frame; 2-U-shaped release boxes; 3-supporting the shaft; 4-driving the supporting shaft; 5-releasing a slope; 51-a rib; 52-a diverter bank; 53-shunt; 6-a rotating wheel; 7-an adjusting part; 71-smooth arc plate; 72-rotating pin; 73-soft elastic roller; 731-mandrel; 732-a sponge sleeve; an 8-gear set; 81-driving wheel; 82-driven wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.