Shock spacer dowel (and its variants)

 

The invention relates to the construction, namely to perform the shock spacer dowels for fastening the outer insulation of all types for concrete details or masonry. The plug contains a rod of high strength composite material, a plastic spacer sleeve is cylindrical or conically tapering towards the front end of the casing, on the side surfaces of which are made slots. According to the first variant spacer sleeve and provided with a pointed unidirectional studs with resilient metal secured to the inner surface of the sleeve, and the spikes have a inclination in the direction of movement of the rod when raspisanie sleeve. According to another variant, the rod is provided with a tapered unidirectional spikes of elastic metal, located on the arching of the rod, and the spikes have a inclination in the direction opposite to the movement of the rod when raspisanie sleeve. The proposed design of anchors increases the reliability of the clutch sleeve and rod. 2 S. p. f-crystals, 5 Il.

The invention relates to the construction, namely to perform the shock spacer dowels for fastening the outer insulation of all types for concrete details or brick is try housing bore (DE No. 3833784, CL F 16 13/06, publ. 1987). This shock spacer dowel has a spacer sleeve with a tapered inner bore, which can ubivatsya spacer rod. In the zone of expansion of the outer surface of the sleeve is cylindrical.

Also known shock spacer dowel comprising spacer sleeve, made with a conically tapering towards the front end of the casing, on the side surfaces of which are made slots on the front end of the outer ring belt with the cutting edge, in the cavity of the shell is inserted rod (DE No. 3608319, CL F 16 B 13/06, publ. 1987).

The closest to this invention is a shock strut anchors for fixing of external thermal insulation on concrete or brick buildings, manufactured Biysk factory fiberglass. The specified thrust dowel includes plastic spacer sleeve is cylindrical or conically tapering towards the front end of the shell with the slots on the side surface, and the rod of high strength composite material with anchor hook on the end.

The disadvantage of the dowel is the low reliability of the fastening rod in the sleeve, because during operation due to vibration and relaxing properties of the plastic grip Guia reliability clutch spacer sleeve and rod.

This task is solved in that the spacer dowel, containing a core of high-strength composite material and plastic spacer sleeve is cylindrical or conically tapering towards the front end of the casing, on the side surfaces of which are made slots, spacer sleeve and provided with a pointed unidirectional blades (teeth) of the elastic metal, secured to the inner surface of the sleeve, and the spikes have a inclination in the direction of movement of the rod when raspisanie sleeve (option I) or a rod provided with a tapered unidirectional blades (teeth) of the elastic metal, located on the arching of the rod, and the spikes have a tilt to the side, the opposite movement of the rod when raspisanie sleeve (option II).

In Fig.1 shows a spacer dowel, General view. In Fig.2 depicts a spacer sleeve for option I. In Fig.3 shows the spacer rod for option II. In Fig.4 - section spacer sleeves, top view (two options for the location of the studs. In Fig.5 - section rod, top view (two options for the location of the studs).

Spacer dowel includes a core 1 made of high-strength composite material such as fiberglass or basalte to the front end of the shell, on the side surface of the cartridge case made slots 3, spacer sleeve for option I is equipped with a plate 4 with pointed studs 5 of the elastic metal directed toward the narrowing of the cone (in the direction of movement of the rod when raspisanie liners). On arching of the rod 1 for option II fixed plate 4 with pointed unidirectional spiked with 5 spines directed in the direction opposite to the movement of the rod when raspisanie sleeve, the rod is equipped with a removable plastic clamp washer 6, for example, in the form of a disk.

Spikes 5 made of elastic metal of sufficient rigidity that allows you to pierce the surface of the rod or sleeve, for example, of hardened steel. Spikes 5 can be located on the entire surface of the arching part of the core or inner shell liner, or one or more longitudinal strips, and/or one or more rings and/or in a spiral.

Plate with spikes attached to the rod or spacer sleeve in the manufacture.

Installation of the plugs is as follows.

At the base (concrete details or masonry) through the insulation drill a hole with a diameter equal to the outside diameter of the sleeve, the depth of the hole should be 1-1,5 Tali and act on the clamping washer some effort, directed along the axis of the rod. In this case the rod is in the socket, pressing the spikes to the inner membrane liner (option I) or to the surface of the rod (for option II). Moving forward, the rod rasklinivanie sleeve into segments that are cut into the wall of the hole base part. In the case of reverse terminal spikes due to their elasticity finish penetrates the surface of the rod (option I) or the surface of the inner lining sleeve (for option II) and is rigidly fixed to the rod in the sleeve, preventing the return stroke of the rod.

Thus the proposed design of anchors increases the reliability of the clutch sleeve and rod.

Claims

1. Shock spacer dowel, containing a core of high-strength composite material and plastic spacer sleeve is cylindrical or conically tapering towards the front end of the casing, on the side surfaces of which are made slots, characterized in that the spacer sleeve is provided with a tapered unidirectional studs with resilient metal secured to the inner surface of the sleeve, and the spikes have a inclination in the direction of movement of the rod when raspisanie sleeves.

2. Shock spacer on the ing a cylindrical or conically tapering towards the front end of the shell, on the side surfaces of which are made slots, characterized in that the rod is provided with a tapered unidirectional spikes of elastic metal, located on the arching of the rod, and the spikes have a inclination in the direction opposite to the movement of the rod when raspisanie sleeve.

 

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FIELD: construction; fixture.

SUBSTANCE: concrete insert includes a head and a cylindrical rod with the sharpened end, with two opposite ledges on an outer surface, executed in the form of a spiral. The spiral pitch is equal to length of a cylindrical rod. Ledges are executed benched. The height of each subsequent step of a ledge gradually increases in a direction from the sharpened end to a head. On length of ledges the dimples which total length makes not less than half of total length of a spiral are consistently executed.

EFFECT: increasing of structure reliability and concrete insert load-carrying capacity.

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FIELD: construction.

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