CN107018935B - A device for rewilding salmon fry - Google Patents

Abstract

A device for rewilding salmon fry, relating to a device for rewilding salmon fry. The telescopic fish fry box is composed of an outer cylinder and an inner cylinder which are nested with each other. Both the outer cylinder and the inner cylinder are provided with a fry placement opening. A piece of dense mesh cloth is fixed inside the connecting frame, and a water flow regulating valve plate and another piece of dense mesh cloth are fixed vertically near the outer end of the outer cylinder. The water flow regulating valve plate is located outside the other dense mesh cloth. It is convenient to adjust the length and level of the telescopic fry box, and can also control the water flow, which is simple and practical.

Description

A device for rewilding salmon fry

technical field

The invention relates to a device for rewilding fish fry, in particular to a device for rewilding salmon fry.

Background technique

Salmon is a well-known cold-water anadromous fish that spawns and migrates. It has delicious meat, rich nutrition and high nutritional value. It is an important economic fish in the Heilongjiang River Basin of my country. Its roe is about 7 mm in diameter, bright red and transparent, like amber, with high nutritional value and high price, and is very popular among consumers in Europe and the United States. Due to the impact of water conservancy projects, environmental pollution, harsh fishing and other reasons, the resources of wild salmon have declined sharply. In order to protect the salmon, the Heilongjiang River Basin in my country and many other places have started wild salmon breeding and releasing activities. At present, artificial breeding of salmon fry has also begun in many places. However, under artificial breeding conditions, the original habits and wildness of salmon fry will be destroyed, and the lack of wildness during release will make it difficult to adapt to the wild environment, resulting in poor proliferation. Therefore, be badly in need of a kind of salmon fry wild release device in production, both can keep the original habit and wildness of salmon, also can guarantee that the quantity of salmon in this water area is multiplied effectively. Therefore, a simple and practical device for rewilding salmon fry is very necessary.

Contents of the invention

The purpose of the present invention is to provide a device for rewilding salmon fry, which is convenient for adjusting the length and level of the telescopic fry box, and can also control the water flow, which is simple and practical.

To achieve the above object, the present invention adopts the following technical solutions: a device for rewilding salmon fry, including a retractable fry box, a plug-in frame, a water flow regulating valve plate, an artificial stone cushion, two dense mesh cloths and four telescopic legs; A threaded through hole 1 is respectively provided, and fastening bolts 1 are respectively screwed in the two threaded through holes 1. The outer cylinder and the inner cylinder are fastened and connected by the fastening bolts 1. Two telescopic outriggers are vertically fixed on the lower ends of the outer cylinder and the inner cylinder respectively. A piece of dense mesh cloth is fixed inside the connecting frame, and a water flow regulating valve plate and another piece of dense mesh cloth are fixed vertically near the outer end of the outer cylinder. The water flow regulating valve plate is located outside the other dense mesh cloth, and the artificial stone cushion is pasted and laid on the bottom of the inner cylinder.

Compared with prior art, the beneficial effect of the present invention is:

1. The present invention can be installed in wild waters to rewild salmon fry, adjust the length of the telescopic fry box according to the number of fry, and adjust the level of the telescopic fry box through telescopic legs, with a simple structure;

2. The present invention can adjust the water flow regulating valve plate according to the water flow conditions in the wild waters, weaken the impact force of the water flow and avoid the difficulty for the salmon fry to adapt. On the one hand, the artificial stone cushion can accumulate plankton to feed the fish fry, and on the other hand, it can also provide a hiding place for the fish fry, which is convenient and practical.

Description of drawings

Fig. 1 is the overall structure axonometric view of the wildization device of salmon fry of the present invention;

Fig. 2 is a view along the direction A of Fig. 1 .

Detailed ways

The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Specific Embodiment 1: As shown in Figures 1 to 2, the present invention discloses a device for rewilding salmon fry, including a telescopic fry box 1, a plug-in frame 3, a water flow regulating valve plate, an artificial stone cushion 6, two dense meshes 5, and four telescopic legs 2. The telescopic fry box 1 is composed of an outer cylinder 1-1 and an inner cylinder 1-2 that are horizontally arranged and nested with each other. Corresponding fry placement openings 1-3 are provided on the top walls of the outer cylinder 1-1 and the inner cylinder 1-2. The fish fry placement opening 1-3 of the outer cylinder 1-1 is hinged with a matching cover plate 1-4, and the two side walls of the outer cylinder 1-1 are respectively provided with a threaded through hole 1 at the relative position. The two threaded through holes 1 are respectively screwed with fastening bolts 1-5. The outer cylinder 1-1 and the inner cylinder 1-2 are fastened and connected by the fastening bolts 1-5. Close to the outer end of the corresponding outer cylinder 1-1 or inner cylinder 1-2 and arranged in a rectangular shape, the top wall of the inner cylinder 1-2 is provided with a slot 2 8 near the outer end, the slot 2 8 is arranged perpendicular to the two side walls of the inner cylinder 1-2, the slot 2 8 is inserted with a plug-in frame 3, and a dense-porous mesh 5 is fixed inside the plug-in frame 3, and a water flow regulating valve plate and another dense-porous mesh 5 are vertically fixed in the outer cylinder 1-1 near the outer end. On the outside of another dense mesh cloth 5, the artificial stone cushion layer 6 is pasted and laid on the inner bottom of the inner cylinder 1-2.

Specific embodiment 2: As shown in Figure 1, this embodiment is a further description of specific embodiment 1. The top wall of the outer cylinder 1-1 is provided with a slot 7, and the slot 7 is arranged perpendicular to the two side walls of the outer cylinder 1-1. The water flow regulating valve plate includes two porous vertical plates 4-1 and two fastening bolts 2 4-2. The through holes of the two porous vertical plates 4-1 correspond to each other. The relative positions of the two threaded through holes are respectively provided with two threaded through holes, and the two threaded through holes two are corresponding to one of the porous vertical plates 4-1, and a fastening bolt two 4-2 is respectively screwed in the two threaded through holes two, and one of the perforated vertical plates 4-1 and the outer cylinder 1-1 are fastened and connected by the two fastened bolts two 4-2.

Specific embodiment 3: As shown in Figures 1 to 2, this embodiment is a further description of specific embodiment 1 or specific embodiment 2, and the two threaded through holes are set close to the socket end of the outer cylinder 1-1.

Specific embodiment 4: As shown in Figures 1 to 2, this embodiment is a further description of specific embodiment 1. The four telescopic legs 2 are all composed of outer tubes and inner tubes that are nested with each other. Each of the outer tube walls is provided with a threaded through hole 3 in the radial direction, and each of the threaded through holes 3 is internally screwed with a top screw, and each outer tube is tightly connected to the corresponding inner tube through the corresponding top screw.

When using the present invention, adjust the telescopic fry box 1 to a suitable length through two fastening bolts 1-5 according to the needs of the wild salmon fry, and then place the present invention in the wild waters (the flowing stream is better, the direction of the water flow adjustment valve plate to the plug frame 3 is the direction of the stream), adjust the lengths of the four telescopic legs 2 respectively so that the telescopic fry box 1 is in a horizontal or approximately horizontal state, and the top of the telescopic fry box 1 is exposed to the water surface. Riser 4-1 controls the size of the current in telescopic fry case 1 and is fastened by two fastening bolts 2 4-2, and fry is poured into telescopic fry case 1 from fry placement port 1-3 at last and covers cover plate and gets final product. External monitoring equipment can be arranged in a suitable position of the present invention to facilitate the observation of the salmon fry that are rewilded. When the rewilding meets the requirements, the splicing frame 3 can be pulled out to release the fry.

It will be obvious to a person skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, but that it can be implemented in other configurations without departing from the spirit or essential characteristics of the invention. Therefore, no matter from which point of view, the embodiment should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so all changes within the meaning and scope of the equivalent conditions of the claims are intended to be included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this description is described according to implementation modes, not each implementation mode only includes an independent technical solution. This description in the description is only for the sake of clarity. Those skilled in the art should take the description as a whole, and the technical solutions in the various embodiments can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims (4)

1. A device for rewilding salmon fry, characterized in that it includes a telescopic fry box (1), a plug-in frame (3), a water flow regulating valve plate, an artificial stone cushion (6), two dense mesh cloths (5) and four telescopic outriggers (2). Corresponding fry placement openings (1-3) are provided, and matching cover plates (1-4) are hinged at the fry placement openings (1-3) of the outer cylinder (1-1). A threaded through hole 1 is respectively provided at opposite positions on the two side walls of the outer cylinder (1-1), and fastening bolts 1 (1-5) are respectively screwed into the two threaded through holes 1. The outer cylinder (1-1) and the inner cylinder (1-2) are fastened and connected by the fastening bolt 1 (1-5). 1) and the lower end of the inner cylinder (1-2) are vertically fixed with two telescopic outriggers (2). The four telescopic outriggers (2) are arranged in a rectangular shape close to the outer end of the corresponding outer cylinder (1-1) or inner cylinder (1-2). The top wall of the inner cylinder (1-2) is provided with a slot two (8) near the outer end. The second slot (8) is set perpendicular to the two side walls of the inner cylinder (1-2). A dense mesh cloth (5) is fixed inside the plug-in frame (3), a water flow regulating valve plate and another dense mesh cloth (5) are vertically fixed in the outer cylinder (1-1) near the outer end, the water flow regulating valve plate is located outside the other dense mesh cloth (5), the artificial stone cushion (6) is pasted and laid on the inner bottom of the inner cylinder (1-2), and the fielding device is equipped with external monitoring equipment. 2. A device for rewilding salmon fry according to claim 1, characterized in that: the top wall of the outer cylinder (1-1) is provided with a slot one (7), and the slot one (7) is arranged perpendicular to the two side walls of the outer cylinder (1-1), the water flow regulating valve plate includes two porous vertical plates (4-1) and two fastening bolts two (4-2), the through holes of the two porous vertical plates (4-1) correspond to each other, and the two porous vertical plates (4-1) are inserted into each other Installed in the slot 1 (7), the two side walls of the outer cylinder (1-1) are respectively provided with threaded through holes 2, the two threaded through holes 2 are corresponding to one of the porous vertical plates (4-1), and a fastening bolt 2 (4-2) is respectively screwed into the two threaded through holes 2, and one of the porous vertical plates (4-1) is fastened to the outer cylinder (1-1) through the two fastening bolts 2 (4-2). 3. A device for rewilding salmon fry according to claim 1 or 2, characterized in that: one of the two threaded through holes is set close to the socket end of the outer cylinder (1-1). 4. A device for rewilding salmon fry according to claim 1, characterized in that: the four telescopic legs (2) are all composed of outer tubes and inner tubes that are socketed in each other, each of the outer tube walls is provided with a threaded through hole 3 along the radial direction, and each of the threaded through holes 3 is internally screwed with a top wire, and each outer tube is fastened to the corresponding inner tube through the corresponding top wire.