CONNECTING ELEMENT FOR CORRUGATED PIPES

Abstract

This utility model relates to connectors for corrugated pipes. The claimed utility model eliminates these shortcomings while simultaneously achieving technical results such as simplified installation, reduced risk of corrugated pipe damage, and reduced risk of sealing ring misalignment.The claimed technical result is achieved by a connecting element for corrugated pipes, which is a sleeve made of a material possessing elastic-deformation properties, due to the walls of which locking elements are formed, made in such a way that each locking element in the position after installation of the corrugated pipe is located between the corrugations of the pipe, while at the time of installation of the pipe, such an element is made with the possibility of deviation to ensure the passage of the pipe into the depth of the sleeve, and after installation of the pipe in a given position ensures the prevention of its reverse exit, and the locking elements are made on both sides of the sleeve in such a way that the possibility of installation and fixation along the pipe on each side of the sleeve is ensured.

Description

[0001] The utility model relates to connectors for corrugated pipes.

[0002] A connector for corrugated pipes, described on the website https: / / schiberg.ru / product / mufta-soyedinitelnaya-75 / , is a sleeve with protrusions on its walls. These protrusions, due to the elasticity of the corrugated pipe material, allow it to be inserted to the desired depth and secured using a tongue-and-groove connection, where the "groove" refers to the recesses between the pipe corrugations, and the "tongue" refers to the protrusions. The disadvantages of this solution include the difficulty of installation, as a significant force is required to overcome the compressive resistance of the corrugated pipe during its installation into the connector. This installation method also causes deformations in the corrugated pipe, which weaken its walls and, in some cases, even cause failure. If the walls fail, the seal in the connection is lost, and if they weaken due to material deformation, these weakened areas risk failure under high pressure from the medium supplied through the pipeline.In addition, a sealing ring is placed on the pipes, which is also damaged when passing through such protrusions or is displaced to the end of the sleeve, which leads to a loss of tightness of the connection.

[0003] The claimed utility model allows to eliminate these shortcomings and at the same time achieve such technical results as simplified installation, reduced risks of damage to the integrity of the corrugated pipe, damage and displacement from the specified position of the sealing ring.

[0004] The claimed technical result is achieved by a connecting element for corrugated pipes, which is a sleeve made of a material with elastic-deformation properties, due to the walls of which locking elements are formed, made in such a way that each locking element in the position after installation of the corrugated pipe is located between the corrugations of the pipe, while at the time of installation of the pipe, such an element is made with the possibility of deviation to ensure the passage of the pipe into the depth of the sleeve, and after installation of the pipe in a given position, it ensures the prevention of its reverse exit, and the locking elements are made on both sides of the sleeve in such a way that it is possible to install and fix it along the pipe on each side of the sleeve.The locking elements are made in pairs on one side of the bushing and are located relative to the paired elements on the other side of the bushing at such a distance along the surface that the set of longitudinal axes passing through the material of the locking element and the cut around it from one pair does not pass through the cuts and locking elements of the other pair.

[0005] The locking element is made in the form of a U-shaped cutout in the pipe wall with a protrusion in its end part facing the inside of the tubular element, and the sleeve is made of plastic.

[0006] The protrusion is made with a bevel on the side closer to which such a locking element is located and allows the locking element to be deflected by the pipe when it is installed from the side of the bushing hole, and on the reverse side the protrusion is made in such a way that when the pipe moves towards dismantling from the bushing, it will prevent it from coming out due to the support provided against the walls of the corrugated pipe.

[0007] Fig. 1 - connecting element.

[0008] Fig. 2 - partial longitudinal section with a corrugated pipe installed on one side.

[0009] Implement the stated solution as follows.

[0010] A corrugated pipe is inserted into the connecting element at one end. Upon reaching locking elements 1 or 2, the U-shaped plate of locking element 1 bends outward due to the end projection and the elastic-deformation properties of the sleeve, allowing the pipe to pass through. After the corrugation passes, locking element 1 or 2 descends between the corrugations, thereby preventing the pipe from exiting in the opposite direction. This design reduces the load on the wall of the corrugation, significantly reducing the risk of damage. The locking element is most likely to deform at the junction with the main body of the sleeve. This effect also occurs with the sealing ring, allowing it to pass past the locking element without critical deformation and to straighten due to the elastic properties behind the locking element.Locking elements 1 are paired on one side of the sleeve and are positioned relative to paired elements 2 on the other side of the sleeve at such a distance (offset) along the surface that the set of longitudinal axes passing through the material of the locking element and the cut around it on one pair will not pass through the cuts and locking elements of the other pair. This ensures a stable and uniform compressive force on both sides of the pipe and a more secure fastening, by eliminating the reduction in the elastic properties of the material that would result from weakening of the sleeve wall if the locking elements were positioned so that they were located one below the other or offset relative to one another by a fraction of the width of the locking element above.

[0011] It is worth noting that the above example shows the shape of the locking element as a U-shaped plate formed from the wall of the sleeve, but other shapes are also possible, for example, triangular, semicircular, etc. However, the U-shaped one is preferable, since the end part has a straight line and the formed protrusion of the locking element will correspond to the shape of the groove of the corrugation.

[0012] It is also worth noting that within the scope of this application, the locking element can be designed in any manner, provided that it prevents the pipe from exiting back, for example, by installing an additional element, such as a screw and pin, or a metal plate, into the body of the locking element. However, it is preferable to make the projection from the same material as the sleeve.

[0013] It is also worth noting possible improvements that can improve the achievement of the indicated effects.

[0014] It is advisable to design the protrusion on the locking element with a bevel on the side closest to the locking element, allowing the pipe to deflect the locking element when it is installed from the bushing bore. This will reduce the load on the pipe material and sealing ring as the locking element passes, thereby increasing the effectiveness of the proposed solution. Furthermore, the protrusion on the reverse side can be designed such that when the pipe is moved toward removal from the bushing, it will prevent it from exiting by providing abutment against the walls of the pipe corrugations. For example, this can be implemented by arranging the protrusion wall perpendicular to the plane of the bushing or by tilting it in the same direction as the bevel on the reverse side. This will create a mechanism for returning the sealing ring material and corrugation to their original position (before passing the protrusion) due to the reverse movement. That is,By pressing the sealing ring and corrugated tube against the protrusion by pulling the pipe back, you can straighten the area of ​​deformation. This will eliminate any minor deformations that may occur in the sealing ring or corrugated tube material.

Claims

1. A connecting element for corrugated pipes, which is a sleeve made of a material with elastic-deformation properties, due to the walls of which locking elements are formed, made in such a way that each locking element in the position after installation of the corrugated pipe is located between the corrugations of the pipe, and at the time of installation of the pipe, such an element is made with the possibility of deflection to ensure the passage of the pipe into the sleeve, and after installation of the pipe in a given position ensures the prevention of its reverse exit, and the locking elements are made on both sides of the sleeve in such a way that the possibility of installation and fixation along the pipe on each side of the sleeve is ensured, the locking elements are made in pairs on one side of the sleeve and are located relative to the paired elements of the other side of the sleeve at such a distance along the surface that the set of longitudinal axes passing through the material of the locking element and the section around it,from one pair does not pass through the cuts and locking elements of the other pair., 2. A connecting element according to claim 1, characterized in that the locking element is made in the form of a U-shaped cutout in the wall of the pipe with a protrusion in its end part facing the inside of the tubular element.

3. A connecting element according to paragraph 2, characterized in that the projection is made with a bevel on the side closer to which such a locking element is located, and allows the locking element to be deflected by the pipe when it is installed from the side of the opening of the sleeve, and on the reverse side the projection is made in such a way that when the pipe moves towards dismantling from the sleeve it will prevent it from coming out by providing a stop against the walls of the corrugated pipe.

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