RU60957U1 - CLIP FOR FASTENING BETWEEN TWO PERPENDICULARLY LOCATED PIPES - Google Patents

Abstract

Usage: in construction as connecting elements in scaffolding.

The essence of the utility model:

The clamp for fastening two perpendicularly arranged pipes to each other, for example, in scaffolding, contains a housing made in the form of a U-shaped bracket with an end wall provided with a threaded hole and sides with grooves at an angle to the end wall ending with a radius. The supporting rib is rigidly connected to the sides and provided with a radial recess. The ends of the sides from the side opposite the end wall are made in the form of a hook, the outer and inner sides of which are formed by radii with eccentricity. The axis of the inner radius of the hook is located between the axis of the threaded hole and the supporting rib. The end face of the bolt provided with a lock nut is pointed.

The design of the clamp provides reliability in operation, simplicity and multiple assembly (disassembly) using one open-end wrench.

Description

The utility model relates to compounds of metal elements of scaffolding based on soil used in construction.

Known construction clamps (construction clamps http://www.lesa.vibrobeton.ru/) are non-rotatable, straight, designed for use in the "Scaffold rack" according to GOST 27321-81 and in the "Means of scaling" according to GOST 24258-88, representing a rigid stamped construction used to connect mutually perpendicular pipes. The disadvantages of this design are: the possibility of their use with only one outer diameter of the pipe; bending of the axis of the bolt connection, which entails a violation of the threaded part and failure after several installations; the need to use two wrenches when tightening the connection.

Known universal scaffolding forests of TEMZ in Tver (http://www.tvemz.ru/p-krans-lesa.shtml) and scaffolding scaffolding LSPKh-40 produced by the Remstroydormash plant (http://www.remstroy.info /pr02.phtml), in which the clamp is divided into two components, which are connected on the one hand by a hook, and on the other hand, by a bolted connection. The disadvantages of this design are increased relative to the previous analogue, the number of component parts of the clamp, which can easily be lost with frequent installation and remounting of scaffolding; the need to use a socket wrench when tightening the connection; the possibility of violation of the threaded part when tightening the connection.

The problem solved by the described utility model is to increase the reliability, durability and ease of use of the clamps for fastening two perpendicularly arranged pipes to each other.

To do this, the clamp for fastening two perpendicularly arranged pipes to each other, for example in scaffolding, contains a housing made in the form of a U-shaped bracket with an end wall provided with a threaded hole and sides with grooves at an angle to

end wall ending in radius. The supporting rib is rigidly connected to the sides and provided with a radial recess. The ends of the sides from the side opposite the end wall are made in the form of a hook, the outer and inner sides of which are formed by radii with eccentricity relative to each other. The axis of the inner radius of the hook is located between the axis of the threaded hole and the supporting rib. The end face of the bolt provided with a lock nut is pointed.

The advantage of this design of the clamp is that when the load on the connection increases, the friction force increases due to the fact that the axis of the inner radius of the hook is located between the axis of the threaded hole and the support rib. In this case, the friction force increases due to an increase in the pressing force between the pipes. Due to the fact that the end of the bolt is pointed, the clamp is trying to rotate around the point of contact of the bolt with the pipe, and the hook increases the contact force between the pipes with increasing load force, and hence the friction force and, as a result, the reliability of the structure as a whole. In addition, ease of installation and sufficiency during installation using one open-end wrench has been achieved.

The utility model is illustrated by drawings, which depict:

figure 1 - scaffolding assembly;

figure 2 - node a in figure 1;

figure 3 is a view of B in figure 2.

In Fig.2 and Fig.3 pipes conventionally depicted in thin lines.

The clamp 1 for fastening two perpendicularly arranged pipes 2 and 3 to each other, for example, in scaffolding, contains: a housing 4, which is made in the form of a U-shaped bracket with sides 5 and 6 and an end wall 7; a supporting rib 8 connected rigidly to the sides 5 and 6 of the housing 4, for example, by a welding method, provided with a radial recess 9; a bolt 10 with a pointed end and a nut 11. The end wall 7 is provided with a threaded hole for installing a bolt 10, abutting against a connected pipe. In the lateral sides 5 and 6 of the housing 4, grooves are made at an angle to the end wall, ending in a radius r. The ends of the sides 5 and 6 from the side opposite the end wall 7 are made in the form of a hook, the inner and outer sides of which are formed by radii r and R with eccentricity k. The axis of the inner radius r of the hook is located between the axis of the threaded hole and the supporting rib 8.

When assembling, the clamp is put on one of the connected pipes, for example, pipe 2, a second pipe (perpendicular to the first one) is inserted into the hook, for example, pipe 3 and tighten them together, tightening the bolt 10, which is then locked by nut 11.

As pipes, ordinary water pipes are used.

This utility model is industrially applicable, as it can be manufactured using conventional stamping and welding technologies both in large factories and in small enterprises with the appropriate equipment.

Claims (3)

1. A clamp for fastening two perpendicularly arranged pipes to each other, for example, in scaffolding, comprising a housing and a bolt connection, consists of a housing made in the form of a U-shaped bracket with an end wall provided with a threaded hole and lateral sides with grooves at an angle to the end wall ending in radius; a supporting rib connected rigidly to the sides, provided with a radial recess; point bolts and nuts. 2. The collar according to claim 1, characterized in that the ends of the side walls from the side of the opposite end wall are made in the form of a hook, the outer and inner sides of which are formed by radii with eccentricity relative to each other. 3. The clamp according to claim 1, characterized in that the axis of the inner radius of the hook is located between the axis of the threaded hole and the supporting rib.