RU200250U1 - System of profiles for creating a lock connection - Google Patents

Abstract

The utility model relates to the production of profiles having side edges specially designed for engagement with one another, with the formation of a tool joint, which can be used mainly in joining wall-forming sheet pile-type welded elements to create non-rectilinear sheet pile walls. The technical result, which consists in increasing the strength and reliability of the manufacture of wall-forming welded elements of the sheet pile type for creating sheet pile walls of non-rectilinear shape, is ensured due to the fact that the tool joint contains a pair of profiles: a female profile consisting of a strip part and a U-shaped side edge, end sections which, bent inwardly, form an open cavity for placing in it the lateral edge of the second profile, the end sections of the U-shaped edge are made symmetrical with respect to the axis of the profile, and a male profile consisting of a T-shaped profile consisting of a shelf with symmetrically curved edges and with the possibility its placement in the open cavity formed by the end sections of the U-shaped side edge of the first profile, and the bending angle α of the edges of the T-shaped profile flange is less than 90 °, and the bending angle of the end sections of the U-shaped edge of the strip profile is α + 90 °, and the strip parts whose axis of symmetry coincides with the axis of symmetry ry of the shelf, according to the utility model, the strip part of the covered profile is made partially bent outward from the axis of symmetry of the shelf towards one of the edges of the shelf of the T-shaped profile at an angle γ of not more than 120 °; profiles are made by hot pressing from a round billet. 1 n. and 1 h. p. f-ly, 9 ill.

Description

The utility model relates to the production of profiles having side edges specially designed for engagement with one another, with the formation of a tool joint, which can be used mainly in joining wall-forming sheet pile-type welded elements to create non-rectilinear sheet pile walls.

There is a known lock for connecting sheet piling elements, including a cage and a connecting cam inserted into the cage cavity, while the cage is made of a metal thick-walled pipe with a longitudinal groove along the generatrix, into which a strip carrying a cam is made, made of a square or rectangular solid or hollow rolling profile with ensuring the adjoining of the cam to the inner wall of the metal thick-walled pipe, at least two edges, while the corresponding metal strips are welded to the cam and to the cage along the longitudinal axis along the entire length of the lock, and the ratio of the strip thickness b to the width of the groove B is in the range from 0 , 65 to 0.9, and the ratio of the size of the side of the cam A, perpendicular to the axis of the welded strip, to the width of the groove B is in the range from 1.7 to 2.6. The lock in cross section has an angular shape, formed by a strip bent at an angle α equal to 60-180 ° in a radius not less than the thickness of the strip (RF patent No. 2398073, IPC E02D 5/08, 27.08.2010).

The disadvantages of the known design of the lock consist in the need for additional technological operations for bending standard metal strips and cutting longitudinal grooves from standard metal pipes for the manufacture of clips, which leads to a significant increase in the cost of manufacturing wall-forming sheet pile-type welded elements to create non-rectilinear sheet pile walls.

As a prototype, as the closest in technical essence to the proposed device, a system of profiles for creating a lock joint was selected (RF patent No. 93092, IPC E02D 5/12, 20.04.2010) in relation to its use in joining wall-forming welded sheet pile elements from hot-rolled strips to create non-straight sheet pile walls. This system contains two profiles: the first is symmetrical with a U-shaped edge forming an open cavity and a strip part, the second is symmetrical with a T-shaped edge and a strip part.

The lateral edge of the T-shaped cross-section is made in the form of a shelf with edges symmetrically bent to the profile axis, while the bending angle α of the edges of the T-shaped profile shelf is less than 90 °, and the bending angle of the end sections of the U-shaped lateral edge of the profile is α + 90 ° ... The lock connection is created by placing the T-shaped edge of the second profile in the open cavity of the U-shaped edge of the first profile. The profiles are made by hot pressing from a round billet. The disadvantages of the prototype are illustrated by drawings.

FIG. 1 shows a view of a non-rectilinear welded sheet pile wall made of hot-rolled strips using profiles to create a tool joint according to the description of the utility model, RF patent 93092.

FIG. 2 shows a diagram of the loading of the tool joint of a non-rectilinear welded sheet pile wall (when the axes of the sheet pile panels are rotated at an angle β> 0 °).

FIG. 3 shows a view of a non-rectilinear welded sheet pile wall using additional bent hot-rolled strips using profiles to create a tool joint according to the description of the utility model, RF patent 93092.

FIG. 4 shows a diagram of the loading of the tool joint of a non-rectilinear welded sheet pile wall using additional bent hot-rolled strips (without turning the axes of the sheet pile panels, angle β = 0 °).

The disadvantages of the prototype are: for (Fig. 2) - impossibility to provide the same tensile load on the end sections of profiles with U-shaped and T-shaped edges when the axes of individual sheet piling panels are rotated at an angle of 0 <β <10 ° relative to each other. It follows from the design scheme under the condition of equilibrium that in the case of symmetric tension at β = 0 ° there is a contact on each of the pairs of end sections and the load on each of the end sections of the profiles is equal to Р _1Х - Р _2х = Р / 2, where Р is the tensile load ... And in the case β> 0 ° there is no contact on one pair of end sections, and it follows from the design scheme under equilibrium condition that P _2X = 0 and P _1X = P, i.e. one pair of end sections is not loaded, and on the second pair the tensile load increases by 2 times in comparison with the symmetrical scheme. This reduces the safety margin of the tool joint; for (Fig. 4) - the need for an additional technological operation for bending standard hot-rolled strips and welding, which leads to a significant increase in the cost of manufacturing wall-forming welded elements of the sheet pile type to create sheet pile walls of non-rectilinear shape.

The technical result is an increase in strength, reliability, a decrease in the cost of manufacturing wall-forming welded sheet pile elements for creating sheet pile walls of non-rectilinear shape.

The specified technical result of the utility model is achieved by the fact that the system of profiles for creating the lock connection contains a pair of profiles: a covering profile consisting of a strip part and a U-shaped side edge, the end sections of which, bent inwardly, form an open cavity for placing the lateral edge of the second profile, the end sections of the U-shaped edge are made symmetrical with respect to the axis of the profile, and the male profile, consisting of a T-shaped profile, consisting of a shelf with symmetrically bent edges and with the possibility of placing it in an open cavity formed by the end sections of the U-shaped side edge of the first profile, and the angle a of the bend of the edges of the T-shaped profile is less than 90 °, and the bend angle of the end sections of the U-shaped edge of the strip profile is equal to α + 90 °, and the strip part, the axis of symmetry of which coincides with the axis of symmetry of the shelf, according to the proposal, the strip part the covered profile is made partially bent outward from the axis of symmetry flanges towards one of the edges of the T-shaped flange at an angle γ of not more than 120 °.

The technical result is also achieved by the fact that the profiles are made by hot pressing from a round billet.

The essence of the utility model is illustrated by drawings.

FIG. 5 shows a general view of the proposed design of a system of profiles for creating a lock connection.

FIG. 6 shows a variant of using a system of profiles to create a lock connection in a triangular sheet pile wall (angle γ = 120 °).

FIG. 7 shows a variant of using a system of profiles to create a lock connection in a sheet pile wall of rectangular shape (angle γ = 90 °).

FIG. 8 shows a variant of using a system of profiles to create a lock connection in a hexagonal sheet pile wall, (angle γ = 60 °).

FIG. 9 shows a variant of using a system of profiles to create a lock connection in a sheet pile wall of an arbitrary non-rectilinear shape.

The proposed system of profiles for creating a locking connection contains a flat female profile, consisting of a strip part 1 and a U-shaped side edge 2, the end sections 3 of which, bent inward, form an open cavity 4 to accommodate the lateral edge of the male profile (Fig. 5) ... The end sections 3 of the U-shaped edge 2 are symmetrical about the axis of the enclosing profile. The male profile consists of a T-shaped profile 5, consisting of a shelf with symmetrically bent edges 6 and with the possibility of placing it in an open cavity 4 formed by the end portions 3 of the U-shaped side edge 2 of a flat female profile, and a strip part 7, the axis of symmetry of which coincides with the axis of symmetry of the shelf of the T-shaped profile 5. The end 8 of the strip part 7 of the male profile is bent to the width A> 0 at an angle γ not more than 120 ° relative to the axis of symmetry of the shelf of the T-shaped profile 5.

The bending angle α of the edges of the flange of the T-shaped profile 5 is less than 90 °, and the bending angle of the end portions 3 of the U-shaped side edge 2 of the enclosing profile is α + 90 °.

Profiles are produced by hot pressing from a round billet with subsequent straightening and cutting operations.

The disadvantages of the prototype are eliminated by the following.

Firstly, one drawback of the prototype is eliminated due to the fact that it becomes possible to provide a symmetrical stretching pattern and the same tensile load and constant contact at the end sections of profiles with U-shaped and T-shaped edges when the axes of individual sheet piling panels are rotated at any angle in the range from 0 to 120 ° relative to each other, since it is always possible to choose a profile with a T-shaped edge, the end part of the strip part of which is bent at an angle of 0 <γ≤120 ° relative to the axis of symmetry of the shelf, and this bend angle is equal to the required angle of rotation of sheet piling panels, connected.

Secondly, another drawback of the prototype is eliminated due to the fact that there is no need to bend standard hot-rolled strips, since it is always possible to choose a profile with a T-shaped edge, the end part of the strip part of which is bent at an angle 0 <γ≤120 ° relative to the axis of symmetry of the shelf, and this bend angle is equal to the required bend angle of standard hot rolled strips.

To create a lock connection, the side edge of the male profile with the T-shaped edge 5 is inserted from the end into the open cavity 4 of the U-shaped side edge 2 of the female profile. The dimensions of the side edge of the male profile and the U-shaped side edge of the female profile are such that their free movement relative to each other is ensured. At low loads, "jumping out" of the side edge of the T-shaped profile 5 of the male profile from the U-shaped side edge 2 of the female profile is excluded. The specified values of the bending angles of the end sections of the profiles when creating a lock connection provide contact along straight segments when stretched along the axis of symmetry under the following condition: the axes of symmetry of the side edge of the T-shaped profile 5 of the male profile and the U-shaped side edge 2 of the female profile coincide.

The bend angle of the end 8 of the strip part 7 relative to the axis of the T-shaped profile 5 with the edge can vary within 0 <γ≤120 °, which makes it possible to create: at γ = 120 ° - sheet pile walls of a triangular shape (Fig. 5), at γ = 90 ° - sheet pile walls of a rectangular shape (Fig. 6), at γ = 60 ° - sheet pile walls of a hexagonal shape (Fig. 7), with various combinations of the bend angle within 0 <γ≤120 ° - sheet pile walls of an arbitrary non-rectilinear shape ( Fig. 8).

Profiles are produced by hot pressing from a round billet with subsequent straightening and cutting operations.

The system of profiles for creating a tool joint can be used mainly in the connection of wall-forming welded elements of the sheet pile type to create sheet pile walls of non-rectilinear shape.

Claims (2)

1. A lock connection containing a pair of profiles: a female profile consisting of a strip part and a U-shaped side edge, the end sections of which, bent inwardly, form an open cavity for placing the side edge of the second profile in it, the end sections of the U-shaped edge are symmetrical relative to the axis of the profile, the male profile, consisting of a T-shaped profile, consisting of a shelf with symmetrically bent edges and with the possibility of placing it in an open cavity formed by the end sections of the U-shaped lateral edge of the first profile, and the angle α of the bend of the edges of the T-shaped shelf profile is less than 90 °, and the bending angle of the end sections of the U-shaped edge of the strip profile is equal to α + 90 °, and of the strip part, the symmetry axis of which coincides with the axis of symmetry of the shelf, characterized in that the strip part of the male profile is made partially bent outward from the axis of symmetry flanges towards one of the edges of the T-shaped flange at an angle of not more than 120 °. 2. The lock connection according to claim 1, characterized in that the profiles are made by hot pressing from a round billet.

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