RU219741U1 - Volumetric L-shaped steel profile - Google Patents

Abstract

The utility model relates to the construction industry, in particular to long profile products made of metal. The technical result of the proposed utility model is to increase the bending strength. The implementation of the device with a set of essential features described in the formula, provides an increase in the bending strength of the device. Ensuring the technical result is achieved by arranging adjacent walls orthogonally to each other, as well as by making the walls smooth, without deflections and protruding elements. The increase in the strength of the device as a whole is also affected by the absence of foci of burning, which provides a connecting seam with a uniform structure along its entire length.

Description

Technical field

The utility model relates to the construction industry, in particular to long profile products made of metal.

State of the art

Known device closed profile specified in the source https://yandex.ru/images/search?cbir_id=7733874%2Filk8ermKr-gIqgLuXtZHsQ1984&p=1&text=url%3A%22avatars.mds.yandex.net%2Fget-images-cbir%2F7733874% 2Filk8ermKr-gIqgLuXtZHsQ1984%2Forig%22&pos=26&rpt=imageview&imgurl=http%3A%2F%2F2.bp.blogspot.com%2F-5uBlLA4902c%2FTgBlR-BpKI%2FAAAAAAAAAHA%2FUzU7qex8uWw%2Fsl600 %2FDSC02478.JPG&lr=11034&cbir_page=similar&url=https% 3A%2F%2Favatars.mds.yandex.net%2Fget-images-cbir%2F7733874%2Filk8ermKr-gIqgLuXtZHsQ1984%2Forig, accessed February 16, 2023. The profile is made with a closed cross section. It consists of the first outer wall, the first side wall, the first inner wall, the second inner wall, the second side wall and the second outer wall. In this case, the first outer wall and the first inner wall are located on one side of the first side wall as a whole at a right angle to it. The second outer wall and the second inner wall are located on one side of the second side wall. In this case, the second inner wall is located at an obtuse angle to the second side wall. The second outer wall is located at an acute angle to the second side wall. The first inner wall and the second side wall are located on opposite sides of the second inner wall generally at right angles to it. The angle of connection of the first outer wall with the second outer wall is very precisely perpendicular and has a light color different from the color of the entire profile. Thus, it can be assumed that this corner is formed as a result of joining the edges of the material in this place. In this case, the location of adjacent walls at an angle of more than 90° and at an angle of less than 90° leads to deformation of the device under external influence and low bending strength characteristics.

The disadvantage of the known technical solution is the low bending strength.

The closest technical solution (prototype) is a closed profile specified in the source https://yandex.ru/images/search?crop=0%3B0.15%3Bl%3B0.6576&cbirid=9036144%2FxV0q4MU9M60uPHQdotNNNw7120&p=6&text=url%3A% 22avatars.mds.yandex.net%2Fget-images-cbir%2F8332881%2FRQ9Qf4dH71r6hGm0idWkMQ7082%2Forig%22&pos=16&ft=imageview&img_url=http%3A%2F%2Fsc01.alicdn.com%2 Fkf%2FHTBlPEG 6d8Gw3 KVjSZFDq6xWEpXac%2F200050564%2 FHTBlPEG6d8Gw3KVjSZFDq6x WEpXac. jpg&lr=11034&cbir_page=similar&url=https%3A%2F%2 Favatars.mds.yandex.net%2Fget-images-cbir%2F8332881%2FRQ9Qf4dH71r6hGm0idWkMQ7082%2Forig, accessed February 16, 2023. The profile is made with a closed cross section. It consists of the first outer wall, the first side wall, the first inner wall, the second inner wall, the second side wall and the second outer wall. In this case, the first outer wall and the first inner wall are located on one side of the first side wall as a whole at a right angle to it. The second outer wall and the second inner wall are located on one side of the second side wall generally at right angles to it. The first inner wall and the second side wall are located on opposite sides of the second inner wall generally at right angles to it. A connecting seam is formed on the second outer wall. The connecting seam is made as jointly bent edges of the material from which the profile is made. Under the influence of external loads, the interconnected edges of the material are displaced relative to each other, which leads to a loss of the strength characteristics of the device as a whole.

The disadvantage of the prototype is the low bending strength.

The technical result of the proposed utility model is to increase the bending strength.

The stated technical result is achieved due to the fact that in the volume of the L-shaped steel profile made of solid sheet material with two connecting edges and containing an intermediate element connecting the connecting edges of the sheet material, as well as the first outer wall, the first side wall, the first inner wall , the second inner wall, the second side wall, the second outer wall, made flat and located one after another with the formation of a closed contour and a cavity in the cross section, while the first side wall is provided with an outer surface and an inner surface with respect to the cavity, the first outer wall located generally at right angles to the first side wall, the first side wall is generally at right angles to the first inner wall, the first inner wall is generally at right angles to the second inner wall, the second inner wall is generally at right angles to the second side wall, the second side wall is located generally at right angles to the second outer wall, the second outer wall is located generally at right angles to the first outer wall, while the first outer wall and the first inner wall are located on the same side of the plane of the first side wall, the second inner wall and the second outer wall are located on one side of the plane of the second side wall, the first inner wall and the second side wall are located on opposite sides of the plane of the second inner wall, on each connecting edge of the sheet material there is a bevel with a blunt from the side of the cavity, the blunts are connected with each other, while the intermediate element is located between the bevels flush with the outer surface.

Brief description of the drawings

The utility model is illustrated by drawings (Fig. 1-2): in Fig. 1 shows a cross section of the profile, Fig. 2 shows the first side wall in section.

Utility Model Disclosure

The figures indicate: the first outer wall 1, the first bend, the groove 3, the first side wall 4, the second bend 5, the first inner wall 6, the third bend 7, the second inner wall 8, the fourth bend 9, the second side wall 10, the cavity 11, fifth fold 12, second outer wall 13, sixth fold 14, outer surface 15, bevel 16, intermediate element 17, connecting edge 18, inner surface 19.

The main elements of the device are the first outer wall 1, the first side wall 4, the first inner wall 6, the second inner wall 8, the second side wall 10, the second outer wall 13 and the intermediate element 17.

Volumetric L-shaped steel profile is made in the form of a long product, the length of which is much greater than the dimensions of its cross section. The device is made of sheet material (steel). The sheet material is provided with two connecting edges 18. The connecting edges 18 are located on opposite sides of the sheet material. The device is made by bending with the formation of several walls (the first outer wall 1, the first side wall 4, the first inner wall 6, the second inner wall 8, the second side wall 10 and the second outer wall 13). The cross section of the device is made in the form of a closed figure with the formation of cavity 11 by the indicated walls. In this case, the inner surface 19 faces the cavity 11, and the outer surface 15 faces the outside of the device.

Each wall (first outer wall 1, first side wall 4, first inner wall 6, second inner wall 8, second side wall 10 and second outer wall 13) is made flat in the form of a plate. These walls are arranged sequentially one after another with the formation of a closed contour and a cavity 11 in cross section. In this case, the first outer wall 1 is connected from one edge to one edge of the first side wall 4. The first side wall 4 is connected to the first inner wall 6 by another opposite edge. The first inner wall 6 is connected by its opposite edge to the second inner wall 8. The second inner wall 8 is connected by its opposite edge to the second side wall 10. The second side wall 10 is connected to the second outer wall 13 by its opposite edge. 1.

The first inner wall 6 is located generally at right angles to the second inner wall 8 with the formation of the third bend 7. The first inner wall 6 is made smaller than the first outer wall 1.

The second inner wall 8 on the side opposite the first inner wall 6 is connected to the second side wall 10. The first inner wall 6 and the second side wall 10 are located on opposite sides of the plane of the second inner wall 8. The second inner wall 8 is located relative to the second side wall 10 as a whole at a right angle with the formation of the fourth bend 9.

The second side wall 10 on the side opposite the second inner wall 8 is connected to the second outer wall 13. The second outer wall 13 is located on the same side as the second inner wall from the plane of the second side wall 10. In this case, the second outer snack 13 is located as a whole at a right angle from the second side wall 10 with the formation of the fifth bend 12.

The second outer wall 13 is made in width greater than the second inner wall 8. The second outer wall 13 on the side opposite the second side wall 10 is connected to the first outer wall 1 as a whole at a right angle with the formation of the sixth bend 14. The first outer wall 1 and the second side wall 10 are located on one side of the plane of the second outer wall 13.

The first outer wall 1 from the side opposite the second outer wall 13 is connected to the first side wall 4 as a whole at a right angle with the formation of the first bend 2. In this case, the first side wall 4 and the second outer wall 13 are located on one side of the plane of the first outer wall 1 .

The first side wall 4 on the side opposite the first outer wall 1 is connected to the first inner wall 6 as a whole at a right angle with the formation of the second bend 5. The first inner wall 6 and the first outer wall 1 are located on one side of the plane of the first side wall 4. On The first side wall 4 is connected to the connecting edges 18 by means of an intermediate element 17. In this case, the intermediate element 17 is located in the groove 3.

The first fold 2, the second fold 5, the third fold 7, the fourth fold 9, the fifth fold 12 and the sixth fold 14 are formed to form a rounding due to material properties.

The groove 3 is located in the central part of the first side wall 4 along its entire length. Each connecting edge 18 is made with the formation of a bevel 16 and blunting. The surfaces forming the bevels 16 are located with the formation of an obtuse angle (more than 90°) with the outer surface 15 of the first side wall 4. The bluntness is formed from the side of the cavity 11 along the connecting edge 18 (seen in Fig. 2, in Fig. 1 is not shown due to small thickness of the first side wall 4). By cavity-side arrangement is meant the location of the blunt on the joint edge 18 generally at right angles to the inner surface 19 and at an obtuse angle to the bevel 16. The blunts are adjacent to each other. In this case, bevels 16 form a V-shaped groove, which is a groove 3.

The intermediate element 17 is a part of the structure of the device, providing connection of the connecting edges 18 with the formation of a closed contour in the cross section. The intermediate element 17 is located between the bevels 16 and, in the particular case, partly between the blunt. The intermediate element 17 is flush with the outer surface 15 and the inner surface 19. The intermediate element 17 is integral with the connecting edges 18 of a material obtained by heating the melt and further cooling to form new crystal lattices. In this case, the material of the intermediate element 17 may differ from the material of the connecting edges 18 in terms of the structure of their crystal lattices. The differences are due to different temperatures of heating, melting and cooling, and also, in the case of welding using an electrode, due to the introduction of other elements into the composition of the intermediate element 17 in the form of electrodes used in the fusion (welding) of the connecting edges 18.

In this case, the first side wall 4, the second inner wall 8 and the second outer wall 13 are generally parallel to each other. The first outer wall 1, the first inner wall 6 and the second side wall 10 are generally parallel to each other. The arrangement and connection of the walls is made with the formation of an L-shaped closed figure in the cross section.

Implementation of the utility model

In the case of using the above elements and means, the invention is implemented as follows (the presented description of the object illustrates a particular case of its execution, other implementations are possible using the features of this technical solution).

Prepare a steel sheet for the manufacture of the device. Opposite edges of the steel sheet (joining edges 18) are cut at an angle to form bevels 16 on the side of one surface of the steel sheet of the largest area and blunts on the side of the other surface of the steel sheet of the largest area. In this case, the surface forming the bevel 16 is located with the formation of an obtuse angle (more than 90°) with the future outer surface 15, and the bluntness with the formation of a right angle with the future inner surface 19.

A device is made from a steel sheet by deformation. At the same time, at some distance from one edge with bevel 16, a second bend 5 is made at a right angle to form part of the first side wall 4. Next, a third bend 7 is made at a right angle to form the first inner wall 6 between the second bend 5 and the third bend 7. When in this case, the third bend 7 is performed in the direction opposite to the part of the first side wall 4 relative to the first inner wall 6. Next, the fourth bend 9 is performed at a right angle with the formation between the third bend 7 and the fourth bend 9 of the second inner wall 8. In this case, the fourth bend 9 is performed in side opposite the first inner wall 6 relative to the second inner wall 8. Next, the fifth bend 12 is performed at a right angle with the formation between the fourth bend 9 and the fifth bend 12 of the second side wall 10. The fifth bend 12 is performed in the same direction as the second inner wall 6 relative to the plane of the second side wall 8. Next, perform the sixth bend 14 at a right angle with the formation between the fifth bend 12 and the sixth bend 14 of the second outer wall 13. The sixth bend 14 is performed in the same direction as the second side wall 8 relative to the plane of the second of the outer wall 13. Next, the first bend 2 is performed at a right angle with the formation between the sixth bend 14 and the first bend 2 of the first outer wall 1. The first bend 2 is performed in the same direction as the second outer wall 13 relative to the plane of the first outer wall 1. Thus Thus, another part of the first side wall 4 is formed between the first fold 2 and the other edge of the steel sheet. When this connecting edges 18 are in contact with each other blunt or located in close proximity to each other. Bevels 16 form a groove 3.

Due to the arrangement of adjacent (contacting, adjacent) walls perpendicular to each other, the bending strength of the profile is increased. So, for example, when adjacent walls are located at an angle other than 90° under external action, adjacent walls sag with less force, which leads to faster bending of the device as a whole.

The joining edges 18 are then connected, for example by welding, to form an intermediate element 17 or by friction welding of the intermediate element 17 . When this occurs, the heating process of the connecting edges 18 and the electrode or the connecting edges 18 and the intermediate element 17, respectively. In the case of welding, the electrode and the material of the connecting edges 18 form a metal alloy that fills the groove 3. At the same time, due to the execution of blunts from the inner surface 19, the product is protected from burning through and penetration of the molten alloy onto the inner surface 19. In addition, the blunts are connected to each other. another due to heating and fusion of the materials of the connecting edges 18. Thus, a more uniform structure of the material of the welded joint is obtained along the entire length of the connecting edges 18 and the intermediate element 17. During cooling (in the case of using an electrode), crystallization occurs and a solid, permanent connection of the connecting edges 18 in the form of an intermediate element 17. The intermediate element 17 does not project onto the outer surface 15 and the inner surface 19 of the first side wall 4, i.e. made flush with them. At the same time, from the side of the inner surface 19, a continuous layer of metal is provided without inclusions obtained from the electrode, i.e. with a homogeneous structure, which increases the strength of the device as a whole. This feature is provided by performing blunting on the connecting edges 18.

Due to the location of the intermediate element 17 flush with the outer surface 15 and the inner surface 19, a more even and uniform first side wall 4 is obtained without protruding elements and deflections, which can lead to further deformation of the wall under external influence.

The presence of an intermediate element 17 in the structure of the first side wall 4 provides, as it were, the presence of a built-in stiffener in its structure, which increases the bending strength of the device.

Thus, the implementation of the device with a set of essential features described in the formula, provides an increase in the bending strength of the device. Ensuring the technical result is achieved by arranging adjacent walls orthogonally to each other, as well as by making the walls smooth, without deflections and protruding elements. The increase in the strength of the device as a whole is also affected by the absence of foci of burning, which provides a connecting seam with a uniform structure along its entire length.

Claims (1)

Volume L-shaped steel profile made of solid sheet material with two connecting edges and containing an intermediate element connecting the connecting edges of the sheet material, as well as the first outer wall, the first side wall, the first inner wall, the second inner wall, the second side wall, the second the outer wall, made flat and located sequentially one after another with the formation of a closed contour and a cavity in the cross section, while the first side wall is provided with an outer surface and an inner surface with respect to the cavity, the first outer wall is located generally at right angles to the first side wall , the first side wall is generally at right angles to the first inner wall, the first inner wall is generally at right angles to the second inner wall, the second inner wall is generally at right angles to the second side wall, the second side wall is generally under at a right angle to the second outer wall, the second outer wall is located generally at right angles to the first outer wall, while the first outer wall and the first inner wall are located on the same side of the plane of the first side wall, the second inner wall and the second outer wall are located one by one side from the plane of the second side wall, the first inner wall and the second side wall are located on opposite sides of the plane of the second inner wall, characterized in that on each connecting edge of the sheet material a bevel is made with a blunt from the side of the cavity, the blunts are connected to each other, while the intermediate element is located between the bevels flush with the outer surface.