CN204682177U - A kind of fish sieve of variable format - Google Patents

Abstract

A kind of fish sieve of variable format, comprise hollow cylinder, the bottom of described cylindrical shell one sidewall have be in same level and pitch of holes equal one row side opening, the bottom of described another sidewall of cylindrical shell has arranges the corresponding exhausting hole in side opening position with described one, horizontal plane residing for through hole higher than side opening residing for horizontal plane, between corresponding side opening and through hole, be interspersed with grating.The utility model is by arranging the size of the quantity regulating fish mesh size of grating, thus the fish of screening different size, and sieve mesh specification standards, fry screening is evenly; Wherein grating is the perspex bar of round bar shape, and smooth surface can not hinder fish; Easily changing when damaging appears in grating; The utility model in use grating can freely roll, and effectively can improve screening effeciency.

Description

A fish sieve with variable specifications

technical field

The utility model relates to a fish sieve with variable specifications.

Background technique

In the process of fry breeding and adult fish breeding, according to the different production technology requirements and market demand, it is necessary to periodically use fish sieves to sort a large number of mixed fish into groups of relatively uniform sizes. For example, fry with a length of less than 10 cm have the habit of cannibalism, and individual differences can lead to aggravation of cannibalism; while fish with relatively uniform sizes can be fed accurately, grow better, have a high survival rate, and a high feed conversion rate.

There are the following three problems in the existing fish sieves: (1) most of the fish sieves have fixed aperture specifications at present, and can only screen out fish of a certain size. But because the size of the fish that wants to be screened is not exactly the same every time, for example, sometimes it is necessary to screen for about 4cm fry, sometimes for about 8cm, and sometimes for about 12cm. Therefore, it is necessary to make fish screens with different aperture specifications according to different needs. Fishermen need to prepare fish sieves of multiple specifications like this, which causes waste of resources and increases the cost of fishermen. (2) Present fish sieves mainly contain fish sieves made of bamboo weaving and metal fish sieves, both of which have obvious disadvantages. Bamboo woven fish sieves are prone to embrittlement, poor bending resistance, difficult to repair after breaking, and the rough sieve bars are easy to hurt fish. Manual weaving leads to large mesh errors, uneven screening of fry, and low production efficiency. The fish screen made of metal is often welded by metal strips. Although the specifications are standard and strong, it is heavy, expensive, easy to sink, and easy to rust. (3) When the sieve bar of the fish sieve is damaged, it is not easy to replace it, which delays its use. Therefore, it is urgent to innovate the production technology of fish sieves to avoid the waste of resources caused by the production of fish sieves with different aperture specifications.

Utility model content

The purpose of this utility model is to provide a fish sieve with variable specifications. The aperture size of the fish sieve can be adjusted by setting the number of sieve bars according to the needs, so as to screen fish of different specifications; and the fish will not be hurt during the screening process. .

To solve the above-mentioned technical problems, the utility model adopts the following technical solutions to achieve:

A fish screen with variable specifications, comprising a hollow cylinder, the bottom of one side wall of the cylinder is provided with a row of side holes on the same horizontal plane and with equal hole spacing, and the bottom of the other side wall of the cylinder is provided with For a row of through holes corresponding to the position of the row of side holes, the level of the through holes is higher than that of the side holes, and mesh bars are inserted between the corresponding side holes and the through holes.

The sieve bar is a smooth round rod. The shape of the cylinder is square.

The angle between the line connecting the through hole and the side hole and the horizontal plane is 1 degree.

As an embodiment of the present invention, each of the side holes is a blind hole with a certain depth facing inward. The sieve bar is inserted through the through hole between the through hole and the blind hole and sinks into the through hole, and the other side wall of the cylinder is hinged with a sealing plate for sealing the through hole.

Both sides of the barrel are respectively provided with handles.

The cylinder body and the sieve bar are made of plexiglass.

Compared with the prior art, the utility model has the following beneficial effects:

1) The utility model can adjust the size of the aperture of the fish sieve by setting the number of sieve bars, thereby screening fish of different specifications, and the mesh size is standard, and the fry are screened evenly;

2) The sieve bar is a round rod-shaped plexiglass rod with a smooth surface and will not hurt the fish;

3) It is easy to replace the screen bar when it is damaged;

4) The sieve bars of the utility model can roll freely during use, which can effectively improve the screening efficiency.

Description of drawings

Fig. 1 is the three-dimensional schematic view of the utility model;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is a cross-sectional view of A-A in Fig. 2 .

In the figure: 1-cylinder, 2-through hole, 3-blind hole, 4-screen bar, 5-sealing plate, 6-handle.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described with embodiment.

As shown in Figure 1, a fish screen with variable specifications includes a cylinder 1 with a hollow inside and a square shape, its specification size is 125cm×52.5cm×52.5cm, and the wall thickness is 2cm; the side wall of the cylinder There are 24 side holes 3 on the same horizontal plane and the hole spacing is 0.6cm. Each side hole is a blind hole with a certain depth facing inward. The diameter of the blind hole is 1.2cm and the depth is 1cm; The bottom of the side wall is provided with 24 through holes 2 higher than the level of the side holes at the positions corresponding to the 24 side holes, and the diameter of the through holes is 1.2cm; between the corresponding through holes and the side holes The angle between the connecting line and the horizontal plane is 1 degree; the 24 side holes correspond to the through holes one by one, and a screen bar 4 is interspersed between each group of corresponding side holes and through holes, wherein the screen bar is smooth in appearance and has a diameter of 1cm round bar, the sieve bar is inserted into the cylinder body through the through hole, and inserted into the corresponding side hole, and there is a hinge for sealing the through hole at the bottom of the side wall of the cylinder body with the through hole. Sealing plate 5. The bottom of the sieve bar has a certain inclination angle, which is convenient for dumping the screened fish. The cylinder and the sieve bar are made of plexiglass, so that the sieve bar is a round rod with a smooth surface and will not be damaged during use. fish; both sides of the cylinder body are respectively provided with handles 5, and the user can hold the handles for screening, which is convenient for use.

The utility model can adjust the aperture size of the fish sieve by setting the number of sieve bars, so as to screen fish of different specifications, and the sieve mesh specification is standard, and the fish fry can be screened evenly; Easy to replace if damaged.

The implementation of the utility model is not limited thereto. According to the above content of the utility model, according to the common technical knowledge and conventional means in this field, without departing from the basic technical idea of the utility model, other modifications made to the above structure of the utility model Various forms of modification, replacement or change all fall within the protection scope of the present utility model.

Claims (8)

1. A fish screen with variable specifications is characterized in that: it includes a hollow cylinder, the bottom of the side wall of the cylinder is provided with a row of side holes on the same horizontal plane and the hole spacing is equal, and the other side of the cylinder is The bottom of the side wall is provided with a row of through holes corresponding to the position of the row of side holes. There are sieves. 2. The fish sieve with variable specifications according to claim 1, characterized in that: said sieve bar is a smooth round bar. 3. The variable specification fish screen according to claim 2, characterized in that: the shape of the cylinder is square. 4. The variable specification fish screen according to claim 3, characterized in that: the angle between the corresponding through hole and the side hole and the horizontal plane is 1 degree. 5. The fish screen with variable specifications according to claim 4, characterized in that: each side hole is a blind hole with a certain depth facing inward. 6. The fish screen with variable specification according to claim 5, characterized in that: the bottom edge of the other side wall of the cylinder is hinged with a sealing plate for sealing the through hole. 7. The fish screen with variable specifications according to claim 6, characterized in that: handles are respectively provided on both sides of the cylinder. 8. The fish screen with variable specifications according to claim 7, characterized in that: said cylinder and screen bars are made of plexiglass.