RU98741U1 - DEVICE FOR PROTECTING THE END OF PIPES TYPE "BALERINA" - Google Patents

Abstract

 1. A device for protecting the ends of the pipes, made of a composite polymer material of low density with high elasticity, comprising an end part with a chamfer equal to the outer diameter of the pipe and ventilation holes, and a cylindrical part with outer ring petals, characterized in that the ring petals have an initial the diameter is larger than the inner diameter of the pipe and installed relative to the cylindrical part at a negative angle. ! 2. The device for protecting the ends of the pipes according to claim 1, characterized in that the installation angle of the ring lobes relative to the axis of the cylindrical part is in the range from 45 to 75 °.

Description

The utility model relates to devices for protecting pipe ends of gas and oil pipelines from shock and corrosion.

It is known that the authors adopted a prototype device of the Medusa type (Celoplastový vnitřní protektor MEDÚZA - www.patrem.cz - Czech Republic), which is an all-plastic internal threadless protector for protecting pipes, which is made of low density polyethylene and is characterized by high elasticity and adhesion. The tread has an end part and a cylindrical part with annular petals extending from it at right angles. The MEDÚZA protector prevents damage and ingress of dirt into the pipe.

The disadvantage of this device is that the perpendicular arrangement of the petals relative to the axis of the cylindrical part limits its use, since it does not fully compensate for the gap between the inner diameter of the pipe and the outer diameter of the petals due to insufficient spring properties of the material.

The objective of the utility model is to eliminate this drawback by creating a device that provides a tight and constant fit of the outer edges of the petals to the inner surface of the pipe and compensates for gaps.

The technical result from the use of the claimed utility model is to reduce damage to the ends of the pipes during transportation and storage.

Common features of the proposed technical solution and prototype are:

by appointment:

- and the claimed device and prototype are designed to protect the internal thread at the end of the pipe from damage,

by design:

- and the claimed device and prototype are made of a composite polymer material of low density with high elasticity;

- and the claimed device, and the prototype contain an end part with a chamfer equal to the outer diameter of the pipe, and ventilation holes, and a cylindrical part with outer annular petals,

The technical result from the use of the claimed utility model is achieved by the fact that in the device for protecting the ends of the pipes containing the end part with a chamfer equal to the outer diameter of the pipe and ventilation holes, and the cylindrical part with the outer ring petals, the ring petals have an outer diameter larger than the inner diameter of the pipe and installed relative to the cylindrical part at a negative angle, while the installation angle of the ring lobes relative to the axis of the cylindrical part is in the range from 45 ° to 75 °.

The claimed technical solution meets the criteria of patentability of a utility model - "novelty" and "industrial applicability", as it is described by a new set of essential features and is implemented by methods known in the art.

The utility model is illustrated by drawings.

Figure 1 - A sectional view of the inventive device for protecting the ends of the pipes in the delivery state,

Figure 2 - A sectional view of the inventive device for protecting the ends of the pipes mounted on the end of the pipe,

In figure 1, 2 numbers indicate:

1 - end part,

2- chamfer

3 - ventilation holes,

4 - cylindrical part,

5 - petals

6 - pipe.

A device for protecting the ends of the pipes (Figs. 1 and 2) comprises an end part 1 with a chamfer 2, the diameter of which is equal to the outer diameter of the pipe, and ventilation holes 3. The end part 1 is integral with the cylindrical part 4 having the petals 5 extending from it outward which in the delivery state have an outer diameter larger than the inner diameter of the pipe and are installed at a negative angle to the axis of the cylindrical part 4.

A device for protecting the ends of the pipes (Figure 2) is used as follows.

The device is pressed with some force on the end of the pipe 6 until it stops. At the same time, the petals 5, having an initial outer diameter larger than the inner diameter of the pipe 6, are bent in the opposite direction (like a ruff) due to the elastic properties, which ensures a reliable fit of the petals to the inner surface of the pipe and does not allow the device to spontaneously jump off the end of the pipe.

Compared with the prototype of the inventive device has a higher reliability, ensuring the safety of the pipes during transportation and storage.

The device can be widely used in all areas of the economy where gas and oil pipes are used.

Claims (2)

1. A device for protecting the ends of the pipes, made of a composite polymer material of low density with high elasticity, comprising an end part with a chamfer equal to the outer diameter of the pipe and ventilation holes, and a cylindrical part with outer ring petals, characterized in that the ring petals have an initial the diameter is larger than the inner diameter of the pipe and installed relative to the cylindrical part at a negative angle. 2. The device for protecting the ends of the pipes according to claim 1, characterized in that the angle of installation of the ring lobes relative to the axis of the cylindrical part is in the range from 45 to 75 °.