Sturgeon fry cultivation device

Abstract

The utility model discloses a sturgeon fry rearing device which comprises a rearing box, an observation pipe and a lifting basket, the right-angle-shaped observation pipe is arranged in the rearing box, a feeder puts baits into a feeding section, the baits downwards fall into the corner of the observation pipe so as to attract fry to swim into a measuring section, and the measuring pipe is provided with scale strips for displaying the length. The numerical value is amplified through the magnifying lens, so that a feeder can clearly and accurately observe the growth condition of the fry, and the growth rate of the fry can be conveniently counted. The basket is placed in the cultivation box, the arrangement of the basket can prevent fries from leaking out of the drainage opening during water changing, and the situation that the fries block the drainage opening and reduce the drainage speed is also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fish breeding, in particular to a sturgeon seedling cultivation device. Background Art

[0002] Fish fry cultivation refers to the process of cultivating fish fry into edible fish species or fish species for release. The cultivation of fish fry can be roughly divided into two methods: static water cultivation and flowing water cultivation. Sturgeon fry are fragile, have poor adaptability to the environment, have a narrow range of food, and are not able to actively feed. They are prone to death and attack by enemies. Therefore, they must be carefully fed and managed in smaller artificially controlled water bodies to cultivate strong fish species of a certain size. Cultivation equipment is often used to cultivate fry.

[0003] In Chinese invention patent application CN201710901362.1, a protective device for outdoor breeding of young sturgeons is disclosed, which includes a breeding pool, a water inlet and a water outlet of the breeding pool are provided with a blocking net, a flexible protective net is provided on the water surface of the breeding pool, a water quality detection device and an observation device are provided on one side of the breeding pool, a sewage pipe is provided at the bottom of the breeding pool, and the protective device also includes a controller, which is connected to the water quality detection device and the observation device, and a blocking net is provided on the sewage pipe. However, the device still has certain disadvantages, and it cannot accurately observe the growth of young sturgeons. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a sturgeon seedling cultivation device which can accurately observe the growth of sturgeon seedlings.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A sturgeon seedling cultivation device, characterized in that it comprises:

[0007] A cultivation box is made of a transparent material, the top of the cultivation box is open, the bottom is provided with a drain port with a valve, and the outer wall of the cultivation box is provided with a magnifying glass;

[0008] An observation tube, made of a transparent material, fixedly located in the incubator, the observation tube is in a right angle shape with two ends connected, including a vertical feeding section and a horizontal measuring section, the measuring section is arranged corresponding to the magnifying glass, and has a length scale bar on the measuring section; and

[0009] The basket is placed in the incubator and matches the inner cavity of the incubator. The holes on the basket can restrict the sturgeon fry from swimming out of the basket.

[0010] A further technical solution is that the basket is connected to a driving assembly for driving the basket to move up and down.

[0011] A further technical solution is that the driving assembly comprises:

[0012] Two rotating shafts are horizontally located at both ends of the top of the incubator, the rotating shafts are rotatably fixed to the top of the incubator through a bearing seat, one end of the two rotating shafts is connected for transmission through a synchronous belt assembly, and one of the rotating shafts is connected to a motor for driving the rotating shaft; and

[0013] At least four suspension ropes are arranged at four corners of the basket, one end of each suspension rope is fixed to the basket, and the other end is wound and fixed on the rotating shaft.

[0014] A further technical solution is that the bearing seat is slidably and lockably disposed on a slide rail at the top of the incubator, and one end of the slide rail extends horizontally to the outside of the incubator.

[0015] A further technical solution is that a carrier plate is horizontally placed on the top of the incubator, a feeding port is provided on the carrier plate, a crusher for crushing bait is fixed above the feeding port, and a discharge port of the crusher is located above the feeding port.

[0016] A further technical solution is that the crusher comprises:

[0017] A crushing barrel is fixed on the carrier plate through a bracket, the top of the crushing barrel is provided with an upper cover which can be opened and removed, the upper cover and the crushing barrel are locked by a lock, and the crushing barrel has a rectangular crushing chamber;

[0018] A crushing plate, which is a grid blade plate, is vertically located in the crushing barrel, a feeding cavity is formed on one side of the crushing plate, and a first telescopic rod for driving the crushing plate to move toward or away from the feeding cavity is fixed on the other side; and

[0019] A push plate is horizontally located at the top of the feeding chamber, and the push plate is fixed to the upper cover through a second telescopic rod;

[0020] The bottom plate of the crushing cylinder corresponding to the feeding chamber is a discharge plate, and the discharge plate is rotatably connected to the side wall of the crushing cylinder through a connecting shaft, and a torsion spring is provided on the connecting shaft to limit the discharge plate from rotating downward and opening.

[0021] A further technical solution is that the crusher further comprises:

[0022] The ejector pins are arranged in an array, one horizontal end of the ejector pin is fixed on the inner wall of the crushing cylinder away from the feeding chamber, and the other end faces the mesh on the crushing plate.

[0023] A further technical solution is that two side walls at the top of the incubator are provided with slots for engaging with the carrier board.

[0024] The beneficial effects of adopting the above technical solution are:

[0025] The sturgeon fry cultivation device is provided with a right-angled observation tube in a cultivation box. The breeder throws bait into the feeding section, and the bait falls downward into the corner of the observation tube, thereby luring the fry to swim into the measuring section. The measuring tube is provided with a scale bar showing the length, and the value is magnified by a magnifying glass, so that the breeder can clearly and accurately observe the growth of the fry, which is convenient for counting the growth rate of the fry.

[0026] A basket is placed in the incubator. The setting of the basket can prevent the fry from leaking out of the drain port when changing water, and also prevent the fry from blocking the drain port and reducing the drainage speed. In addition, by lifting the basket to a certain height, on the one hand, the feces excreted by the fry deposited at the bottom of the incubator can be better observed, and the incubator can be cleaned in time; on the other hand, the remaining bait deposited at the bottom of the incubator can be better observed, and whether the amount of bait fed can meet the growth needs of the fry can be better understood to avoid overfeeding or underfeeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] Figure 1 It is a main structural schematic diagram of the utility model;

[0029] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0030] Figure 3 It is a schematic cross-sectional structure diagram of the crusher part of the utility model. DETAILED DESCRIPTION

[0031] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] like Figure 1 to Figure 3As shown, a sturgeon seedling cultivation device includes a cultivation box 10, an observation tube 20 and a basket 30. The cultivation box 10 is open at the top and has a drain port with a valve at the bottom. A magnifying glass 110 is provided on the outer wall of the cultivation box 10. The observation tube 20 is fixedly located in the cultivation box 10. The observation tube 20 is a right angle with two ends connected, including a vertical feeding section and a horizontal measuring section. The measuring section is arranged corresponding to the magnifying glass 110. There is a length scale bar on the measuring section. Preferably, the feeding section extends upward from the water surface to ensure that the sturgeon seedlings can only swim into the observation tube 20 from the measuring section. The cultivation box 10 and the observation tube 20 are both made of transparent materials, generally glass. The basket 30 can be directly placed in the incubator 10 and matched with the inner cavity of the incubator 10. When cultivating the seedlings, the sturgeon seedlings are put into the basket 30. The holes on the basket 30 can limit the sturgeon seedlings from swimming out of the basket 30, and the top of the basket 30 can preferably be higher than the liquid level to prevent the sturgeon seedlings from swimming out of the top of the basket.

[0034] Similar to the existing sturgeon seedling cultivation device, the sturgeon seedling cultivation device is also provided with sensors for detecting water temperature and dissolved oxygen, and correspondingly provided with oxygenation devices (such as aerators, siphon oxygenation tubes) and fish tank heating rods, to monitor the growth environment of the sturgeon seedlings, and make timely adjustments according to the detection results, so as to provide a superior environment suitable for the growth of the sturgeon seedlings.

[0035] The sturgeon fry cultivation device is provided with a right-angled observation tube 20 in a cultivation box 10. The breeder throws bait into the feeding section, and the bait falls downward into the corner of the observation tube 20, thereby luring the fry to swim into the measuring section. The measuring tube is provided with a scale bar showing the length, and the value is magnified by a magnifying glass 110, so that the breeder can clearly and accurately observe the growth of the fry, which is convenient for counting the growth rate of the fry.

[0036] A basket 30 is placed in the incubator 10. The setting of the basket 30 can prevent the fry from leaking out of the discharge port when changing water, and also prevent the fry from blocking the discharge port and reducing the drainage speed. In addition, the excrement excreted by the fry and the bait fed can all leak into the basket 30. By lifting the basket 30 to a certain height, on the one hand, the excrement excreted by the fry deposited at the bottom of the incubator 10 can be better observed, and the incubator 10 can be cleaned in time; on the other hand, the remaining bait deposited at the bottom of the incubator 10 can be better observed, and whether the amount of bait fed meets the growth needs of the fry can be better understood, and overfeeding or underfeeding of bait can be avoided.

[0037] In order to enable the basket 30 to be automatically and smoothly raised and lowered, a driving assembly is connected to the basket 30 to drive it to move up and down.

[0038] Specifically, the driving assembly includes two rotating shafts 310 and at least four suspension ropes 340. The two rotating shafts 310 are horizontally located at the two ends of the top of the incubator 10. The rotating shafts 310 are rotatably fixed to the top of the incubator 10 through the bearing seat 320. The same end of the two rotating shafts 310 is fixed with a synchronous pulley, which is connected and driven by a synchronous belt. The wrap angle of the synchronous belt meets the transmission requirements. One of the rotating shafts 310 is connected to a motor 330 that drives it to rotate. The four suspension ropes 340 are placed at the four corners of the basket 30. One end of each suspension rope 340 is fixed to the basket 30, and the other end is wound and fixed on the rotating shaft 310.

[0039] The motor 330 is started, and the two rotating shafts are driven by the synchronous belt assembly to rotate synchronously and uniformly, and the corresponding suspension rope 340 is rolled up through the rotation of the rotating shaft 310, so that the basket 30 is raised horizontally, and the height of the basket 30 can be locked, avoiding the instability of manual operation. It is convenient to observe the feces and remaining bait at the bottom of the incubator 10.

[0040] In addition, in order to enable the basket 30 to be taken out of the incubator 10 upward, slide rails 350 are fixed at the four corners of the top of the incubator 10. The slide rails 350 are arranged vertically with the rotating shaft 310, and one end of the slide rails 350 extends horizontally to the outside of the incubator 10. The bearing seat 320 fixed to the rotating shaft 310 is slidably connected to the slide rail 350 through a slider matched with the slide rail 350, and a threaded top screw is provided on the slider to fix the slider to the guide rail. The bearing seat 320 and the slide rail 350 can be locked by tightening the threaded top screw. After loosening the threaded top screw, the bearing seat 320 can move along the slide rail 350.

[0041] When the basket 30 is in the incubator 10, in order to prevent the suspension rope 340 from rotating and retracting smoothly, the suspension rope 340 needs to be kept in a vertical suspension state, so the shaft 310 will move above the basket 30, and the shaft 310 will affect the removal of the basket 30. When the basket 30 needs to be taken out of the incubator 10, the two shafts 310 are moved outward by moving the position of the bearing seat 320 to make room for the basket 30 to be taken out.

[0042] According to the growth characteristics of sturgeons, in the wild, their young mainly feed on small benthic aquatic animals, such as chironomid larvae, water fleas and small benthic oligochaetes (cercidia, water silkworms, etc.). Due to the influence of various factors such as the natural environment and food, the survival rate of their fry is very low. In the process of artificial breeding, the method of artificial feeding of live fresh biological bait is often used to improve the survival rate of seedlings. The Chinese sturgeon is a fish that reproduces in autumn. The late autumn season is the growth and development period of its fry. The fry are usually cultivated with live baits such as water earthworms and cladocerans. Water earthworms are fresh water earthworms, which are usually chopped into 2-5mm using a wall breaker.

[0043] In order to facilitate the processing and feeding of bait, a carrier plate 120 is horizontally placed on the top of the incubator 10, and a feeding port 121 is opened on the carrier plate 120. A crusher 40 for crushing bait is fixed above the feeding port 121, and the discharge port of the crusher 40 is located above the feeding port 121. In order to improve the stability of the carrier plate 120, there are slots on the two side walls of the top of the incubator 10 for clamping with the carrier plate 120. Among them, the observation tube 20 can be suspended below the carrier plate by a hanging rope.

[0044] Since fresh water earthworms become sticky after being crushed, it is impossible to achieve clean automatic discharge at the bottom after crushing using the existing spiral stirring crusher. The crusher 40 disclosed in the present invention includes a crushing barrel 410, a crushing plate 420 and a push plate 430. The crushing barrel 410 is fixed to the carrier plate 120 by a bracket 411. The top of the crushing barrel 410 has an upper cover that can be opened and removed. The upper cover and the crushing barrel 410 are locked by a lock. The crushing barrel 410 has a rectangular crushing chamber. The crushing plate 420 is a grid blade. The crushing plate 420 is vertically located in the crushing barrel 410, and a feeding chamber is formed on one side of the crushing plate 420. A first telescopic rod 421 that drives the crushing plate 420 to move toward or away from the feeding chamber is fixed on the other side. The push plate 430 is horizontally located at the top of the feeding chamber, and the push plate 430 is fixed to the upper cover by a second telescopic rod 431. The bottom plate of the crushing cylinder 410 corresponding to the feeding chamber is a discharge plate 412. The discharge plate 412 is rotatably connected to the side wall of the crushing cylinder 410 via a connecting shaft, and a torsion spring is provided on the connecting shaft to limit the discharge plate 412 from rotating downward and opening.

[0045] Open the upper cover on the top of the crushing cylinder 410, put the raw materials of bait such as fresh water earthworms into the crushing chamber, then cover the upper cover, and lock the upper cover with the crushing cylinder 410 through the lock buckle, the first telescopic rod 421 extends, driving the crushing plate 420 to compress the crushing chamber horizontally to achieve the crushing of the raw materials, then the first telescopic rod 421 shrinks and resets, the second telescopic rod 431 extends, driving the push plate 430 to push the bait downward, under the action of the thrust of the push plate 430, the force of the torsion spring can be overcome to make the discharge plate 412 rotate downward and open, push the bait out of the crushing cylinder 410, and make the bait fall into the incubator 10 through the feeding port 121, completing the feeding of the bait. Then the second telescopic rod 431 shrinks and resets, and the discharge plate 412 rotates and closes under the action of the torsion spring. In order to prevent the bait from adhering to the push plate 430 and the crushing plate 420, the push plate 430 and the crushing plate 420 can be made of anti-adhesion ceramic material.

[0046] Furthermore, the crusher 40 further includes a plurality of ejector pins 440 arranged in an array, one horizontal end of the ejector pin 440 is fixed to the inner wall of the crushing cylinder 410 away from the feeding chamber, and the other end faces the mesh on the crushing plate 420. When the crushing plate 420 is reset, the free end of the ejector pin 440 will pass through the mesh on the crushing plate 420, and push the bait in the mesh out of the crushing plate 420, so that the bait only stays in the crushing chamber, and try to ensure that all the bait is pushed out of the crushing cylinder 410.

[0047] The above are only preferred embodiments of the present invention. Any simple modification, deformation and equivalent replacement made by anyone to the present invention according to the content of the present invention shall fall within the protection scope of the present invention.

Claims

1. A sturgeon seedling cultivation device, characterized in that: include: A cultivation box (10) is made of a transparent material, the top of the cultivation box (10) is open, the bottom is provided with a drain port with a valve, and the outer wall of the cultivation box (10) is provided with a magnifying glass (110); An observation tube (20) is made of a transparent material and is fixedly located in the incubator (10). The observation tube (20) is in a right angle shape with two ends connected, and comprises a vertical feeding section and a horizontal measuring section. The measuring section is arranged corresponding to the magnifying glass (110) and has a length scale bar on the measuring section; and The basket (30) is placed in the incubator (10) and matches the inner cavity of the incubator (10). The holes on the basket (30) can restrict the sturgeon fry from swimming out of the basket (30).

2. The sturgeon seedling cultivation device according to claim 1, characterized in that: The basket (30) is connected to a driving assembly for driving it to move up and down.

3. The sturgeon seedling cultivation device according to claim 2, characterized in that: The drive assembly comprises: Two rotating shafts (310) are horizontally located at two ends of the top of the incubator (10), the rotating shafts (310) are rotatably fixed to the top of the incubator (10) via a bearing seat (320), one end of the two rotating shafts (310) is connected for transmission via a synchronous belt assembly, and one of the rotating shafts (310) is connected to a motor (330) for driving the rotating shaft (310) to rotate; and At least four suspension ropes (340) are respectively arranged at four corners of the basket (30); one end of each suspension rope (340) is fixed to the basket (30), and the other end is wound and fixed on the rotating shaft (310).

4. The sturgeon seedling cultivation device according to claim 3, characterized in that: The bearing seat (320) is slidably and lockably located on a slide rail (350) at the top of the incubator (10), and one end of the slide rail (350) extends horizontally to the outside of the incubator (10).

5. The sturgeon seedling cultivation device according to claim 1, characterized in that: A carrier plate (120) is horizontally placed on the top of the breeding box (10), a feeding port (121) is provided on the carrier plate (120), a crusher (40) for crushing bait is fixed above the feeding port (121), and a discharge port of the crusher (40) is located above the feeding port (121).

6. The sturgeon seedling cultivation device according to claim 5, characterized in that: The crusher (40) comprises: A crushing cylinder (410) is fixed on the carrier plate (120) via a bracket (411); the top of the crushing cylinder (410) is provided with an upper cover that can be opened and removed; the upper cover and the crushing cylinder (410) are locked by a lock; and the crushing cylinder (410) has a rectangular crushing chamber; The crushing plate (420) is a grid blade plate, and the crushing plate (420) is vertically located in the crushing cylinder (410). A feeding cavity is formed on one side of the crushing plate (420), and a first telescopic rod (421) is fixed on the other side to drive the crushing plate (420) to move toward or away from the feeding cavity; and A push plate (430) is horizontally located at the top of the feeding chamber, and the push plate (430) is fixed to the upper cover via a second telescopic rod (431); The bottom plate of the crushing cylinder (410) corresponding to the feeding chamber is a discharge plate (412), and the discharge plate (412) is rotatably connected to the side wall of the crushing cylinder (410) via a connecting shaft, and a torsion spring is provided on the connecting shaft to limit the discharge plate (412) from rotating downward and opening.

7. The sturgeon seedling cultivation device according to claim 6, characterized in that: The crusher (40) further comprises: The ejector pins (440) are arranged in an array, with one horizontal end of the ejector pin (440) being fixed on the inner wall of the crushing cylinder (410) away from the feeding chamber, and the other end facing the mesh on the crushing plate (420).

8. The sturgeon seedling cultivation device according to claim 5, characterized in that: The two side walls at the top of the incubator (10) are provided with slots for being engaged with the carrier plate (120).

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