RU73351U1 - ANCHOR DEVICE FOR PERIODIC PROFILES - Google Patents

Abstract

The utility model relates to construction, and in particular to devices used as quick-disconnect joints of working reinforcement of a periodic profile of concrete structures, as well as for the manufacture of prestressed reinforced concrete structures.

The inventive anchor device for the reinforcement of the periodic profile contains a mounting nut and a conical clamp, consisting of a housing in which the mounting nut and collet are placed. At the same time, the collet is made of at least two half-sleeves with recesses corresponding to the ridges of the working reinforcement of the periodic profile, and on each half-sleeve, from its end and along the entire outer surface, counter slots are made that do not reach the opposite end, and on the outer diameter of the collet there are annular grooves in which annular elements of elastic material are placed.

As the elastic material, metal or plastic may be used.

The proposed anchor device has high reliability and durability during its operation.

Description

The utility model relates to construction, and in particular to devices used as quick-disconnect joints of working reinforcement of a periodic profile of concrete structures, as well as for the manufacture of prestressed reinforced concrete structures.

The analysis of the prior art by the applicant showed that various devices are known in the art for connecting working reinforcement, as well as for manufacturing structures with prestressed reinforcement (RF patents Nos. 2231604, 2134759, 2023812, utility model of the Russian Federation No. 13403, etc.).

Closest to the claimed technical solution is an anchor device that contains a metal rod, upper mounting nut, conical clamp. In this case, the end of the reinforcing rod of the periodic profile protruding from the foundation is used as a metal rod, the anchor device being provided at the top with a pin in contact with the lower end of the reinforcing rod, and the conical clamp is made in the form of a connecting, tapering down cone coupling that goes into the upper cylindrical having an internal thread, its part. The conical part of the coupling is worn on the end of the reinforcing bar of the periodic profile protruding from the foundation, and a stud is screwed into its cylindrical part, and two or more are embedded in the conical part of the coupling

wedges with recesses corresponding to the ridges of the reinforcing bar of a periodic profile, forming a cone, tapering downward and falling into the conical part of the coupling. In this case, the device is equipped with a lower support nut, which ensures the operation of the anchor device for compression, and the upper fixing nut provides the operation of the anchor device in tension (RF patent No. 2228405).

This anchor device is used as a quick disconnect connection of profile working reinforcement of reinforced concrete structures.

In the known design of the anchor device, the wedges embedded in the conical part of the coupling are made integral, which leads to an uneven distribution of pressure along the length and diameter of the reinforcing bar, i.e. to reduce the strength and reliability of the mount.

In addition, the wedges are not fixed to each other, which can lead to axial displacement of them relative to each other, which also reduces the reliability and strength of the fastening.

The objective of this utility model is to create an anchor device for periodic profile reinforcement with high performance characteristics due to increased reliability and strength, as well as expanding the device’s functionality, namely its use for tensioning reinforcement.

The problem is solved by the proposed design of the anchor device for the reinforcement of the periodic profile, which contains a mounting nut and a conical clamp, consisting of a housing in which the mounting nut and collet are located, while the collet is made of at least two half-sleeves, with recesses corresponding to the ridges of the profile reinforcement moreover, on each half-sleeve, starting from its end and along the entire outer surface, oncoming slots are made that do not reach the opposite end, and on the outer diameter of the collet there are made piezoquartz grooves in which are arranged annular

elements of elastic material.

The elastic material may be steel or plastic.

In the inventive utility model, the collet is made of at least two half-sleeves having slots, starting from its end and along the entire outer surface. This allows you to evenly distribute the pressure along the entire length and diameter of the reinforcement, i.e. increases reliability and durability of fastening.

On the outer surface of the collet, annular grooves are made with annular elements of elastic material placed therein. Ring elements fasten half-sleeves together, preventing them from moving relative to each other, which also increases the reliability and strength of the fastening.

The essence of the proposed anchor device is illustrated by drawings: figure 1, figure 2.

Figure 1 shows a section of an anchor device in working condition:

1 - case

2 - half-sleeves

3 - fixing nut

4 - ring elements

5 - reinforcement of the periodic profile

6 - annular grooves

Figure 2 presents a drawing of a collet - General view:

2 - half-sleeves

6 - annular grooves

7 - slots

The principle of operation of the anchor device when tensioning the reinforcement is as follows.

The valve body 1 is mounted on a cone clamp. At the work site

the reinforcing bars of the periodic profile 5 place the half-sleeves 2 of the collet so that the ends of the half-sleeves lie in the same plane, and the ridges of the reinforcement lie in the corresponding recesses of the half-sleeves. The position of the half-sleeves is fixed using the ring elements 4, placing them in the annular grooves 6, made on the outer surface of the floor of the bushings. Next, tighten the fixing nut 3, while the collet, shifting relative to the housing in the axial direction, clamps the rod (preliminary compression) and provides a more complete contact of the recesses of the half-sleeves and flanges of the reinforcement before applying the work load. Under the influence of the workload (axial tensile force) applied to the body (or to the reinforcement), the collet further displaces relative to the body, while the half-sleeve of the collet with its recesses reliably grabs the periodic profile reinforcement by the corresponding ridges.

It is allowed to wind the pre-assembled collet onto the reinforcement.

The principle of operation of the anchor device as a quick-connect, for example, for connecting two pieces of reinforcement of a periodic profile, is as follows.

On one of the segments of the reinforcement put on the body 1 of the cone clamp. Combine the ends of both segments of the reinforcement. At the junction of the segments of the reinforcement, half-sleeves 2 of the collet are placed in such a way that the joint is equally removed from the opposite ends of the half-sleeves. In this case, the ends of the half-sleeves should lie in one plane, and the ridges of the reinforcement should lie in the corresponding recesses of the half-sleeves. The position of the half-sleeves is fixed using the ring elements 4, placing them in the annular grooves 6, made on the outer surface of the collet. Next, put on the cone clamp housing on the collet. Tighten the fixing nut 3, while the collet, shifting relative to the housing in the axial direction, clamps both segments of the valve and ensures their reliable

compound.

As can be seen from the description of the work, the claimed anchor device can be used not only as a quick disconnect connection, but also for tensioning the reinforcement.

It should also be noted that the proposed anchor device can be used both for joining and for tensioning the reinforcement of a periodic profile made not only of metal (reinforced concrete structures), but also of high-strength composite material (fiberglass, etc.).

Thus, the use of the inventive anchor device allows to achieve the following technical result:

- increase the reliability and strength of the mount.

- expand the functionality of the device.

The inventive anchor device is made of known materials using known equipment and is intended for use in construction as a quick-disconnect connection of working reinforcement of a periodic profile of concrete structures, as well as for the manufacture of prestressed reinforced concrete structures.

Claims (2)

1. Anchor device for periodic profile reinforcement, comprising a fixing nut and a conical clamp, characterized in that the conical clamp consists of a housing in which the mounting nut and collet is made, made of at least two half-sleeves with recesses corresponding to the ridges of the periodic profile reinforcement in this case, on each half-sleeve, starting from its end face and along the entire outer surface, oncoming slots are made, not reaching the opposite end, and on the outer diameter of the collet there are annular grooves in which mescheny ring members of an elastic material. 2. Anchor device according to claim 1, characterized in that metal or plastic is used as the elastic material.