RU187432U1 - COMPONENT TUBULAR CONNECTOR ASSEMBLY FOR POLYMERCONTAINER BALLASTING DEVICE - Google Patents

Abstract

The technical solution relates to the field of the design of the connections of tubular elements of the spacer frame of the polymer container ballasting device, in particular PKBU or PKBU-MKS, which are part of the frames used as load-bearing structures for filling with bulk material, such as soil, the container part of the polymer container ballasting device (PKBU or PKBU- ISS). The task is to create a tubular element connection unit that is reliable when applying short-term compressive longitudinally directed loads to the clamp. The technical result consists in the reliability of the connection unit under the conditions of assembly and operation of the polymer container ballasting device containing them. This is achieved by the fact that the connection unit of the tubular elements of the spacer frame of the polymer container ballast device contains a spacer strut in the form of a pipe with a tapered end placed in a closed longitudinal slot perpendicular to the hollow beam and having a locking part in the form of a retainer located in the cavity of the beam, bent away from the longitudinal cut the beams in the direction from the plane of the flattened end of the pipe after it is inserted into the slot, while the latch is formed on the section of the flattened end of the pipe that does not have a weld, and the bending is performed by a value measured not facing the longitudinal slot, not exceeding 15 ° and not less than the width of the longitudinal slot, with the preservation of flatness along the entire length. 2 s.p. f-ly, 7 ill.

Description

The technical solution relates to the field of the design of the connections of tubular elements of the spacer frame of the polymer container ballasting device, in particular PKBU or PKBU-MKS, which are part of the frames used as load-bearing structures for filling with bulk material, such as soil, the container part of the polymer container ballasting device (PKBU or PKBU- ISS).

A known connection node spacer frame of the weighting of the pipeline, containing forming its longitudinal and transverse tubular rod elements, the latter of which is made with a flat-shaped broadening at the ends, obtained, preferably, by flattening the ends of the pipes, and the longitudinal has a groove to accommodate these broadenings, the broadening is made a groove with a bendable element - a latch, with which the transverse rod element is dressed on the wall of the longitudinal tubular rod element, the groove in the broadening is made in the middle in in the form of a U-shaped cut with a bendable element, and the bent element is made with the possibility of bending into the inside of the longitudinal rod element so that in the working position it forms a lock preventing the removal of the transverse element from the longitudinal one (RF patent No. 85600 U1, 10.08.2009).

The closest known is the connection node of the tubular elements of the spacer frame of the polymer container ballasting device, formed of pipes made of a transverse strut with a flattened end and a longitudinal beam with a groove through it, located along the generatrix of the pipe into which the tapered end of the transverse strut is inserted, and at the tapered end at least from one of its lateral ends there is a locking part formed by a through slot, bent in the direction from the plane of the flattened end tube after its establishment in a groove formed on said limb measured by facing the through-slot value is not less than the difference between the width of the through groove and a thickness of the flattened tube end (RF Patent №89882 U1, 13.04.2009).

Known connection nodes do not provide the required reliability due to the possibility of deformation of the latch when moving the structure containing such a node. Such deformation can occur in the connection node of the tubular elements of the spacer frame of the polymer container ballasting device due to the loss of stability of the latch during short-term application of a longitudinally directed load, because in the known constructions of the joint, the constructive condition is not observed that prevents this and consists in the absence of a weld weakening the retainer in the flattened portion of its execution, as well as the set value of the range of the bending angle of the retainer (with respect to the flatness of its shape), in which it does not lose stability applications of such loads.

The objective of this technical solution is to create a node connecting the tubular elements of the spacer frame of the polymer container ballasting device, which is reliable when applied to the clamp short-term compressive longitudinally directed loads.

The technical result consists in the reliability of the connection node under the conditions of assembly and operation of the polymer-container ballasting device containing them.

This is achieved by the fact that the connection unit of the tubular elements of the spacer frame of the polymer container ballasting device comprises a spacer rack in the form of a pipe with a tapered end placed in a closed longitudinal slot perpendicular to the hollow beam and having a locking part in the form of a retainer bent from the longitudinal located in the cavity of the beam slot the beams in the direction from the plane of the tapered end of the pipe after it is inserted into the slot, while the latch is formed on the plot of the tapered end of the pipe, not having a weld, and the bending is performed by the measured value facing the longitudinal slot, not exceeding 15 ° and not less than the width of the longitudinal slot, with preservation of flatness along the entire length. In addition, to enhance the technical result, the latch can be located parallel to the axis of the seam on the tapered end of the pipe at a distance from it, not less than the thickness of the pipe wall. And the coupling of the retainer with a flattened section of the pipe can be made along a radius R not less than the thickness of the metal of the pipe wall.

The relationship of these features with the technical result (materiality of the features) is as follows. The assembly of the connection of the tubular elements of the spacer frame of the polymer container ballasting device, comprising a spacer in the form of a pipe with a tapered end, placed in a closed longitudinal slot perpendicular to the hollow beam and having a locking part in the form of a retainer located in the cavity of the beam, determines the loads acting in such a connection, one of which is axial, acting along the longitudinal axis is considered in this case. With such a load that occurs in just such a connection of the unit, a latch will be engaged for a short time, which will keep the entire unit in the assembled state. The deformation (loss of stability) of the latch under the action of a compressive load is possible within the limits of its bending angle, lying behind the values of 15 °. Bending from a value not less than the width of the longitudinal slot to the specified value (inclusive), subject to the straightness and flatness of the clamp and its fulfillment outside the zone of the welded longitudinal joint of the pipe (the seam weakens the bearing ability of the bending of the clamp and leads to uneven deformation, i.e., to deviation from flatness) allows to increase the stability of the latch, i.e. ensure the reliability of the connection node. If the specified value of the angle is exceeded, the stability of the lock occurs. Additionally, the location of the axis of the clamp parallel to the seam on the tapered end of the pipe at a distance not less than the thickness of the pipe wall determines the quasi-rectangular cross-sectional shape of the clamp, and the pairing of the clamp with a flattened section of the pipe along a radius R not less than the thickness of the metal of the pipe wall eliminates stress concentration , which is also aimed at improving the reliability of the site as a whole.

In FIG. 1 is a front view of a connection unit of tubular elements of a spacer frame of a polymer container ballasting device;

In FIG. 2 is a top view of the spacer strut of the connection unit of the tubular elements of the spacer frame of the polymer container ballasting device;

In FIG. 3 is a side view of the spacer rack of the connection unit of the tubular elements of the spacer frame of the polymer container ballasting device;

In FIG. 4 is a view “A” in FIG. 3 (to scale);

In FIG. 5 - assembly assembly (rotated along arrow "A");

In FIG. 6 - assembly, view along arrow B in FIG. 5;

Photo 7 is presented to understand the overall design of the assembly.

The connection unit of the tubular elements of the spacer frame of the polymer container ballasting device comprises a spacer rack 1 in the form of a pipe with a tapered end 2. The tapered end 2 is placed in a closed longitudinal slot 3 perpendicular to the hollow beam 4. The locking part is made in the form of a retainer 5 located in the cavity of the beam 4 bent during assembly of the assembly from the longitudinal slot 3 of the beam 4 in the direction from the plane of the flattened end of the pipe after it is inserted into the slot 3. The latch 5 is formed on the flattened portion about the end of the pipe without a weld (see Fig. 4). The bending of the latch is made by the measured value facing the longitudinal slot, not exceeding 15 ° and not less than the width of the longitudinal slot 3, provided that its flatness is maintained along the entire length (not including the bending point). In addition, to enhance the technical result, the latch can be located parallel to the axis of the seam on the tapered end of the pipe at a distance from it, not less than the thickness of the pipe wall. The coupling of the retainer 5 with a flattened pipe section is made along a radius R not less than the thickness of the metal of the pipe wall.

When connecting the tubular elements of the spacer frame of a polymer container ballasting device, a tapered end 2 with a retainer 5 is inserted into the slot 3 of the hollow beam 4. After placing the retainer in the cavity of the beam 4 with a special inventory key, rotate the retainer 5 by an angle of up to 15 °. When assembling a number of such nodes, a spacer frame of the polymer container ballasting device (PKBU or its modifications PKBU-ISS) is formed. In the working position, the rack 1 experiences only compressive loads, however, during installation (in the trench) on the latch, when lifting the frame, compressive loads with a bending component act. With this design, the connection node of the tubular elements of the spacer frame of the polymer container ballasting device, the influence of the bending component is minimized, leaving the latch 5 in the design position, which ensures further reliable operation of the node and polymer container ballast device as a whole.

Claims (3)

1. The connection node of the tubular elements of the spacer frame of the polymer container ballasting device, comprising a spacer column in the form of a pipe with a tapered end placed in a closed longitudinal slot perpendicular to the hollow beam and having a locking part in the form of a retainer located in the cavity of the beam, bent from the longitudinal slot of the beam in the direction from the plane of the tapered end of the pipe after it is inserted into a slot, characterized in that the latch is formed on the plot of the tapered end of the pipe, not having weld is made on a limb measured by facing the longitudinal slot size not exceeding 15 ° and is not less than the width of the longitudinal slot, while maintaining flatness over the entire length. 2. The connection unit of the tubular elements according to claim 1, characterized in that the latch is located parallel to the axis of the seam at the tapered end of the pipe at a distance from it not less than the thickness of the pipe wall. 3. The connection node of the tubular elements according to claim 1 or 2, characterized in that the mating of the retainer with a flattened section of the pipe is made along a radius not less than the thickness of the metal of the pipe wall.

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