RU2605239C2 - Method of jointing reinforcement bars of periodic profile - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to construction, namely, to methods of jointing reinforcement bars of periodic profile. In threaded holes of connecting sleeve fixing bolts are screwed with installed plugs, that is fixed in plug, for example, adhesive substance. Connected rods are placed in the sleeve to thrust against the stop. Mounting gun, for example, powder, is introduced plugs into the body of rods. Note here that channels serve as guides at introduction plugs. When implementing plugs in rods, the last are pressed to notches of the connecting sleeve. When tightening the fixing screws to press them to the stops of anchors is carryed out fixing of plugs in sleeve. Thus, is created a reliable connection of rods. Performing of the notches in the form of multiple thread allows without special costs create ledges in the form of pyramids, that promotes better fixation of rods in the sleeve.

EFFECT: since the ends of the fixing screws interact with smooth surface of the projection dowel is carried out reliable fixation of the plug, and, consequently, the rod, in connecting sleeve.

1 cl, 8 dwg

Description

The method of connecting reinforcing bars of a periodic profile.

 The invention relates to the construction industry, and in particular to devices for the mechanical connection of reinforcing bars of a periodic profile.

A known method of connecting reinforcing rods of a periodic profile using a connecting sleeve with bolt clamps and making on the inner surface of the notches and then pressing the rods to the last [1].

However, this method has the following disadvantages.

The fixing of the rods in the connecting sleeve occurs due to the force created by the bolt clamps when they are screwed. Since the rods have a variable cross-section, the end face of the latch does not interact with the latter over the entire surface, which reduces the reliability of the connection. In order to create a uniform load on the rods, the use of a torque wrench of the limit type with an adjustable tightening torque is required. The use of a manual key is time-consuming and requires either a lot of effort or the use of, for example, pneumatic or hydraulic equipment, which in construction conditions is in many cases difficult.

The result, to which this technical solution is directed, is to increase the reliability of the connection of the rods while reducing the complexity of the connection.

This result is achieved due to the fact that in the method of connecting reinforcing rods of a periodic profile using a connecting sleeve with bolt clamps and making notches on the inner surface and then pressing the rods against the latter, pressing the rods against the notches is done by inserting dowels into the rods by means of an assembly gun with subsequent fixing them in the connecting sleeve with bolt locks. The notches on the connecting sleeve are threaded with multiple threads.

An example of the method is illustrated by drawings, where in FIG. 1 shows an assembled sleeve, in FIG. 2 is a section AA, in FIG. 3 is a top view of the notches of the connecting sleeve, in FIG. 4 is a section along BB, in FIG. 5 shows a connecting sleeve with rods placed therein into which dowels are embedded, in FIG. 6 is a section along BB, in FIG. 7 and 8 depict bolt lock and dowel, respectively.

A device for connecting reinforcing rods of a periodic profile includes a connecting sleeve 1 with threaded holes 2, internal notches in the form of multi-thread 3, a stopper 4 to limit the longitudinal movement of the connected rods 5 inserted into the sleeve, and bolts 6 located in the threaded holes, and dowels 7 with ledges 8. The fixing bolts are made with through longitudinal channels 9 in which the dowels 7 are located.

The method of connecting reinforcing bars of a periodic profile is as follows.

The fixing bolts 6 are screwed into the threaded holes 2 of the connecting sleeve 1 with the dowels 7 installed in them, which are fixed in the dowel, for example, with an adhesive. The connecting rods 5 are placed in the sleeve all the way into the stopper 4. A dowel, for example, a powder gun, is used to insert dowels into the body of the rods 5. In this case, the channels 9 serve as guides for the introduction of dowels.

When introducing dowels into the rods, the latter are pressed against the protrusions of 10 notches 3 of the connecting sleeve. When the fixing bolts are screwed until they are pressed against the dowel stops, the dowels are fixed in the sleeve.

This creates a reliable connection of the rods.

The execution of notches in the form of multiple threads allows you to create protrusions 10 in the form of pyramids without special costs, which contributes to better fixation of the rods in the sleeve. Since the ends of the fixing bolts interact with the flat surface of the ledge 8 of the dowel 7, there is a reliable fixation of the dowel, and, consequently, the rod, in the connecting sleeve.

Thus, the proposed technical solution will allow:

- increase the reliability of the connection of the rods;

- reduce the complexity of the implementation of the connection;

- do without complicated auxiliary equipment.

Information sources

1. US patent No. 7107735, NKI 403/305, 2006.

Claims (2)

1. The method of connecting reinforcing rods of a periodic profile using a connecting sleeve with bolt clamps, making notches on the inner surface and then pressing the rods against the latter, characterized in that the rods are pressed against the notches by inserting dowels into the rods by means of a mounting gun and then fixing them in the connecting sleeve bolt locks. 2. The method of connecting reinforcing bars according to claim 1, characterized in that the notches on the connecting sleeve are cut by multiple threads.

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