RU216785U1 - Elevator-type rack for rearing fly larvae - Google Patents

Abstract

The utility model relates to equipment for growing fly larvae for their subsequent use as feed for growing fish. The technical result is achieved in an elevator-type rack for growing fly larvae, containing a frame in which two vertically arranged sections of shelves are fixed and in which an elevator shaft is located between the sections, an elevator-type shelf elevator is located in the elevator shaft, each shelf has rollers on the sides, and along on the sides of the sections in the positions of the shelves, guides for the rollers of the shelves are fixed to the frame with the possibility of rolling the shelf from the lift to the position of the section according to these guides, the sides are fixed to the shelf along its contour, the height of the shelf is 170..200 mm. The technical result is the maximum occupancy of the internal volume for the specified task of growing fly larvae. 2 w.p. f-ly, 3 ill.

Description

The utility model relates to equipment for growing fly larvae for their subsequent use as feed for growing fish.

An analogue is known - a rack for growing fly larvae - RU 2160004, 07/23/1998, consisting of a frame with shelves on which cassettes with trays filled with a substrate with fly larvae are installed.

The disadvantage of analogue is the low specific productivity per unit area of the growing area of the larvae, which uses the described racks. Since the cassettes with trays are installed manually, the height of the rack is small. Therefore, the placement of racks in the larvae rearing shop, which has a large height, is inefficient, since a large volume, the premises located above the racks, remain unused.

An analogue is known - a carousel-type rack for growing fly larvae - JP 2020534031, 11/26/2020, containing a frame and two vertically arranged sections of the shelves, and guides are fixed on the frame on the sides to direct the movement of the shelves of the sections in a vertical direction up or down and, after they reach highest or lowest point, continue their movement to the next section for movement in the opposite direction, there is a chain drive to give movement to the shelves.

The disadvantage of analogue is the low specific productivity per unit area of the growing area of the larvae, which uses the described racks. Since in the upper and lower positions the shelves are moved along the guides along the arc of a circle, this imposes a restriction on the minimum vertical distance of the shelves. With a large distance between the shelves, the free volume is not used, thereby reducing the occupancy of the rack and reducing the specific productivity of the site. For growing larvae, the optimal depth of the substrate layer is 100 mm, so the use of boxes more than 110 mm and the distance between the shelves of more than this value are ineffective. In the case of a small distance between the shelves, when moving along an arc to the neighboring section, they begin to touch each other, making movement impossible.

An analogue is known - an elevator type rack - a source on the Internet https://dikom-neva.ru/avtomatizirovannyij-vertikalnyij-sklad-dikom-lift/, adopted as a prototype, containing a frame, two vertically arranged sections of shelves and an elevator shaft between sections , in which a lift-type shelf lift is located, each shelf has rollers, and on the sides of the sections in the positions of the shelves vertically to the frame, guides for the shelf rollers are fixed to the frame, making it possible to roll the shelf from the lift into the position of the section according to these guides, boxes are installed on the shelves.

Compared to the previous analogue, the prototype does not have a radius section of the trajectory of the movement of the shelves, therefore it has a greater potential for increasing occupancy. The prototype has a low degree of occupancy for the following reason. Since the prototype rack is designed to store hardware or other bulk product, boxes are installed on the shelves of this rack. Therefore, the distance between the shelves is chosen so that a box fits vertically into the gap between adjacent shelves. The specific occupancy of the rack by volume depends on the fullness of the boxes. The boxes themselves have certain dimensions, wall thickness and stiffeners that occupy the volume, thereby reducing the useful use of this volume.

The technical result of the proposed utility model is to create a lift-type rack for rearing fly larvae, which has a maximum occupancy of the internal volume for the specified task, providing high specific productivity per unit area of the larvae rearing area.

The technical result is achieved in an elevator-type rack for growing fly larvae, containing a frame in which two vertically arranged sections of shelves are fixed and in which an elevator shaft is located between the sections, an elevator-type shelf elevator is located in the elevator shaft, each shelf has rollers on the sides, and along on the sides of the sections in the positions of the shelves, guides for the rollers of the shelves are fixed to the frame with the possibility of rolling the shelf from the lift to the position of the section according to these guides, the sides are fixed to the shelf along its contour, the height of the shelf with the sides is 170..200 mm.

The boards can be made of sheet steel and fixed to the shelf with screws through the flanges. The boards can be made of polypropylene and fixed with an adhesive joint.

Figure 1 shows a General view of the rack lift type for growing larvae of flies.

Figure 2 shows a side view of the rack shelf in the installation position on the rack.

Figure 3 shows a shelf rack lift type for growing larvae of flies.

Elevator-type rack for rearing fly larvae contains a frame 1, as shown in figure 1, in which two vertical sections 2, 3 of shelves 4 are fixed and in which an elevator shaft 5 is located between sections 2 and 3, an elevator 6 is placed in the elevator shaft 5 shelves 4 of the elevator type, each shelf 4 has rollers 7 on the sides, as shown in figure 2, and on the sides of sections 2 and 3 in the positions of the shelves 4 to the frame 1 are fixed guides 8 for the rollers 7 of the shelves 4 with the possibility of rolling the shelves 4 from the lift 6 to the position of section 2 or 3 according to the guides 8, the sides 9 are fixed to the shelf along its contour, as shown in figure 3, the height of the shelf is B = 170..200 mm, as shown in figure 3.

Consider an example of a specific implementation of an elevator-type rack for growing fly larvae. Frame 1 is made of steel pipes of square section, connected by welding, and is a truss structure. Frame 1 can be made from other pipes. The frame 1 has supports 10, which have the ability to adjust the horizontal position of the shelves 4. Vertically arranged sections 2, 3 of the shelves 4 are formed by shelves 4, which are installed on the guides 8 of the frame 1. The elevator shaft 5 is a space inside the frame 1 between sections 2 and 3. Lift 6 shelves 4 is an elevator type built into the frame 1. It has an automation tool that allows you to roll up and roll out the shelves 4 on the lift at a height and in the lower position without mechanical human intervention. Each shelf 4 is made in the form of a frame to ensure rigidity, lined with sheet material, and has a height G=60 mm. On the sides of the shelf 4 has rollers 7, which are wheels with rolling bearings. Guides 8 for rollers 7 shelves 4 are aluminum profiles having a channel section, as shown in Fig.2. On top of the shelf along its contour, the sides 9 are fixed with the help of bolted connections 11. The sides 9 are made of sheet steel with a thickness of 1 mm. Each side 9 has flanges 12 bent relative to the side plane at an angle of 90 degrees. The flanges 12 are mated with the upper surface 13 of the shelf 4 and are fixed to it with bolts 11. The sides 9 can be made of sheet plastic and can be fixed in this case by adhesive bonding to the surface 13 of the shelf 4. The sides 9 with the surface of the shelf 13 form a cavity for placing the substrate with larvae. Such a device eliminates the need to use boxes, which usually have large dimensions due to the presence of a bottom, stiffeners and high walls, and occupy the working space, which in the proposed device is used to accommodate the useful volume of the substrate with larvae, ensuring that the internal volume of the rack for growing larvae is filled to the maximum.

In one embodiment of the device, the height of the shelf with side B is 170 mm. The optimal working layer of the substrate with larvae is 100 mm. A height margin of 10 mm allows you to safely place the substrate with larvae, excluding unauthorized leaving of the internal volume of the shelf 4 with sides 9 by the larvae. If the height B is less than 170 mm, the risk of the larvae leaving the internal volume increases. In addition, with a small overlap of the walls of the substrate layer, it becomes difficult to lay the substrate layer so that it does not touch the shelf located above, it is difficult to eliminate the loss of the substrate and maintain cleanliness. In another version of the device, the height of shelf B is 200 mm. All intermediate options are also optimal according to the specified criterion. Sides above 200 mm become less effective as a large internal volume becomes unused.

An elevator-type rack for rearing fly larvae can have varying degrees of automation. In the first embodiment, the shelves 4 can be rolled onto the lift 6 under the control of the operator by pressing the buttons to the right, left and go down to the lower service point 14 by pressing the button down. In the second version, the operator presses the button for the desired position of one of the sections 2 and 3 of the rack and the lift itself rolls up the shelf 4 from the desired position and lowers it to the lower service point 14. In the third version, the device itself determines the required time for lowering the shelf 4 to the service position depending on the stage of the technical process of growing larvae and signals the operator about the need for maintenance.

Consider an example of the operation of an elevator-type rack for growing fly larvae. At the lower service point 14, the operator fills the volume of the shelf 4 with sides 9 with a substrate with larvae. After filling one shelf, it gives a signal to send it to the position on the rack, it is delivered there, the next shelf descends to the service point 14 and the process is repeated for all shelves. After a certain time, food is added to the larvae in the same way, and at the final stage of cultivation, the larvae are collected, which have gained the necessary mass for their transportation to the place of fish feeding.

Several racks are installed in the production area. Due to the specified compact arrangement of the substrate with larvae in the proposed device, a high specific productivity per unit area of the larval growing area is ensured.

Claims (3)

1. An elevator-type rack for rearing fly larvae, containing a frame in which two vertically arranged sections of shelves are fixed and in which an elevator shaft is located between the sections, an elevator-type shelf elevator is placed in the elevator shaft, each shelf has rollers on the sides, and on the sides of the sections in the positions of the shelves, guides for the rollers of the shelves are fixed to the frame with the possibility of rolling the shelf from the lift to the position of the section according to these guides, characterized in that the sides are fixed to the shelf along its contour, the height of the shelf with the sides is 170..200 mm. 2. Rack according to claim 1, characterized in that the sides are made of sheet steel and are fixed to the shelf with screws through the flanges. 3. Rack according to claim. 1, characterized in that the boards are made of polypropylene and fixed with an adhesive joint.

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