SU1386765A1 - Thrust anchor - Google Patents

Abstract

The invention relates to the field of mechanical engineering, to anchor fasteners. The purpose of the invention is the expansion of operational capabilities. The expansion anchor contains three long wedge elements placed in the groove of the basic structure. The wedge elements are joined to each other along lateral inclined surfaces. A longitudinal T-shaped groove for the heads of several bolts is made in the central wedge element. The expansion anchor, due to its considerable extent, has a large load capacity. property. You can attach one or more parts. In this case, the bolts must be moved into the groove of the central wedge element before alignment with the holes in the part being attached. 1 hp f-ly, 2 ill.

Description

FIELD OF THE INVENTION The invention relates to machine-building anchoring means.

The purpose of the invention is expansion; Operational opportunities.

FIG. I shows the expansion anchor; in fig. 2 shows section A-A in FIG. one .

The expansion anchor contains threaded fasteners of the rod type with T-shaped heads 2 and three new elements — two lateral 3 central 4. The central wedge 1 element is made with symmetrical decking surfaces 5, along which it mates with surfaces of side wedge elements. 3. For ease of installation, the height of the central wedge element is somewhat greater than the height of the side wedge elements. All three wedge elements are made with a length that repeatedly exceeds the size of the head 2 of the fastening element. Central to the new element has a longitudinal T | -shaped groove 6 under the head of the thread-in | z1X fasteners. The lateral wedge elements are made with transverse grooves 7 at the ends under the wall $ 1e elastic split rings 8. Nuts are screwed on the threaded fasteners 9. The installation of the expansion anchor is done in the following order.

In the longitudinal groove 10 of the base structure 1 1 all wedge elements are placed with the support with the wide side 1 of the central wedge element or the bottom 13 of the groove.

Threaded fasteners without installed in the groove of the central wedge element arbitrarily.

Impact wedges on the side wedge elements produce a preliminary wedging of the anchor. Attachable

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The part 14 is lowered onto the base structure, aligning its holes with threaded fasteners that move freely along the groove 6. Then tighten the nuts 9, which press the attachment piece to the base structure and final wedge the anchor by pushing the central element through T-shaped heads 2.

You can use more than two threaded fasteners and attach not one, but several parts, which are oriented only relative to the basic structure, regardless of the location of the threaded fasteners.

The expansion anchor, due to its significant extent, has a high load capacity.

Claims (2)

1. A spacer anchor containing a threaded fastener with a head and three wedge elements mated on inclined surfaces, two lateral and central with a socket for the threaded fastener, characterized in that in order to expand operational capabilities, the wedge elements are made with a length that repeatedly exceeds the size of the fastener head, the nest in the central wedge element is made in the form of a longitudinal groove having an undercut in cross section under the fastener head. 2. The anchor according to claim., Is also different from the fact that the cross section of the longitudinal groove of the central wedge element and the head of the fastening element are filled with T-shaped. ag.1  Par.2