RU205957U1 - Manual centralizer for pipes with a diameter of 6 to 24 mm for welding - Google Patents

Abstract

The utility model refers to auxiliary equipment designed for centering steel pipes with a diameter of 6 to 24 mm for welding during the installation of pipelines, power plants, etc. The technical result of the proposed utility model is to increase the accuracy of centering pipes with a diameter of 6 to 24 mm for welding. The technical result of the utility model is achieved through the use of a hinge mechanism with clamps that allow manual centering of pipes with a diameter of 6 to 24 mm for welding. The utility model allows to increase the accuracy of centering pipes with a diameter of 6 to 24 mm for welding. The utility model was used in 2020 on production facilities of the branches of Gazprom transgaz Ufa when welding pipes when connecting pipelines for supplying gas to valve control units, pressure measurement sensors, piping of pressure regulators and other devices and structures, where pipes with a diameter of 6 to 24 mm are used for piping, having recommended yourself like n reliable and convenient accessory.

Description

The utility model relates to auxiliary equipment designed for centering steel pipes with a diameter of 6 to 24 mm for welding during the installation of pipelines, power plants, etc.

Known centralizer for small diameter pipes (analogue) (Product catalog [Electronic resource]: LLC "NGSK". Construction of pipelines // Centralizers // Centralizer for small diameter pipes 26 mm. URL: https://ngsgroup.ru/catalog/construction -pipelines / centrators / centralizer-pipes-small-diameter /? oid = 4367 (date of access: 02/01/2021) [1], which is a hinge-screw device consisting of crimps, screw, crosshead, nut and stoppers. for external installation of pipelines with a diameter of 25 to 108 mm.

The disadvantages of the analog include:

- laboriousness of pipe centering for welding;

- closing a part of the welded seam with a centralizer;

- inability to center pipes with a diameter of less than 25 mm.

Known centralizer-clamp TsS 3 (analogue) (Product catalog [Electronic resource]: LLC "Alkor". Equipment for the construction and repair of pipelines // Centralizers for connecting pipes for welding // Centralizer-clamp TsS 3 (Russia). URL: https : //www.alkor-pipe.ru/index.php? q = 11/3/134 / 161.html (date of access: 01.02.2021) [2], containing two handles connected through hinges with clamps at the ends, adjustment screw and release lever The device is designed for fixing round and tubular materials with a diameter of 10 to 85 mm.

The disadvantage of the analogue is the low accuracy of pipe centering for welding.

The closest to the claimed technical device (prototype) is a manual centralizer, (Pat. 201351 Russian Federation, IPC ⁷ B23K 37/053. Manual centralizer for pipes with a diameter of 6 to 14 mm for welding / Usmanov R.R., Chuchkalov M.V. . - No. 2020120193; declared 06/10/2020; published 12/11/2020; Bull. No. 35) [3], consisting of two hinged handles, with strips fixed at their ends, to which two pairs of clamps are coaxially welded in in the form of grooved paws. The device is designed for centering steel pipes with a diameter of 6 to 14 mm for welding during the installation of pipelines, power plants, etc.

The disadvantages of the prototype include:

- low accuracy of pipe centering for welding;

- narrow range of pipe diameters for welding.

The technical result of the proposed utility model is to improve the accuracy of centering pipes with a diameter of 6 to 24 mm for welding.

The technical result of the utility model is achieved through the use of a hinge mechanism with clamps that allow manual centering of pipes with a diameter of 6 to 24 mm for welding.

The essence of the utility model is illustrated by the figure, which depicts a device consisting of two handles 1 connected to each other by a hinge 2, with extension strips 3 fixed at their ends, to which clamps are welded in the form of identical pairs of pieces of metal corner 4 (hereinafter - clamps). The principle of operation of the utility model is based on the use of a double lever mechanism, which increases and transfers the force applied to the handles 1 to the clamps 4. To increase the free space around the centered pipes 5, the clamps 4 are removed by means of extension bars 3 from the junction of the two handles, which is necessary for unimpeded supply of welding equipment to the place of welding. The selection of the angle for clamps 4 is made according to the size of the shelves, depending on the diameter of the pipes to be welded 5.

The utility model works as follows. The centralizer with open clamps 4 is installed over the pipes 5 to be welded at the point of their connection. By squeezing the handles 1 manually through the hinge 2, a force is transmitted to the clamps 4, which makes it possible to center the pipes 5 for their subsequent welding.

Thus, the proposed utility model improves the accuracy of centering pipes with a diameter of 6 to 24 mm for welding.

The utility model was used in 2020 at the production facilities of the branches of Gazprom transgaz Ufa when welding pipes when connecting pipelines to supply gas to valve control units, pressure measurement sensors, piping of pressure regulators and other devices and structures where pipes are used for piping diameters from 6 to 24 mm, having established itself as a reliable and convenient accessory.

Claims (1)

A manual centralizer for pipes with a diameter of 6 to 24 mm for welding, consisting of two hinged handles and clamps, with strips fixed at the ends of the handles, to each of which clamps are welded in the form of identical pairs of metal angle pieces.

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