CZ15020U1 - Anti-noise panel - Google Patents

Description

(54) Utility model name:

Noise control panel

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CZ 15020 Ul

Noise control panel

Technical field

The present invention relates to a soundproofing panel as part of a device for absorbing or reflecting road or rail traffic noise, which consists of a support plate on which the absorption layer or reflective means is fixed.

BACKGROUND OF THE INVENTION

A number of systems for creating noise barriers are known, especially along highways and railways. They are usually made up of prefabricated panels with a standardized length, eg 4 m, mounted between columns on the side of the road. The panel includes a supporting element, i.e. a structural element ensuring the shape stability of the panel. In the case of reflective panels, the support element may form a substantially single layer, for example in special-purpose glass panels. Noise barriers are known in which the support element is a wood or metal structure. However, the most commonly used sound absorbing panels of the absorption type consist of a concrete slab with a thickness of approx

100 mm on which an absorbent layer consisting of, for example, porous concrete, inorganic fiber mat, recycled rubber panel or recycled plastic is attached or integrated. The disadvantage of soundproof panels with load-bearing concrete slab is their considerable weight. This has a negative impact on the transport costs from the production site to the installation site and causes considerable logistical problems, for example when installing on a highway, where the builders have only one lane for a trailer and a mobile crane.

The aim of the technical solution is to substantially reduce the disadvantage of known concrete slab-based noise barriers.

The essence of the technical solution

The object of the present invention is to provide a sound-absorbing panel formed by a carrier plate on which an absorbent layer or reflective means is attached, the carrier plate being a monolithic cassette plate, i.e. a peripheral frame plate made of fiberglass or mineral fiber reinforced concrete, the thickness of which ranges from 5 to 30mm.

The support plate can be reinforced with ribs to increase stability.

The peripheral frame of the cassette plate may overlap on the bypass sides.

The glass or mineral fibers may be dispersed in the concrete or arranged in a mat.

In the absorbent-type soundproofing embodiment, a mineral fiber mat may be mounted on the support plate, on the outside of which the glass fabric with micro-holes is laminated, covered with a protective steel grille embedded in the peripheral frame of the support plate.

A recycled rubber or recycled plastic panel may be attached to the carrier plate.

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of one embodiment of the acoustic panel; FIG. 2 is a longitudinal sectional view of FIG. 1; and FIG. 3 is a cross-sectional view; longitudinal section of another embodiment of the panel, in Figs. cross section.

Examples of technical solution

The soundproofing panel according to FIGS. 1 to 3 consists of a monolithic cassette plate I of thickness t 10 mm provided with a frame 2 and transverse ribs 3, which is made of glass-fiber-cement, ie concrete whose filler and armature are dispersed glass fibers. The material of the plate I is characterized by a tensile strength of 9 to 11 MPa, a high impact resistance, non-flammability and sound insulation; the board of this material shows sufficient stability even at a length of 4 m. On the side of the board I facing the noise source is fixed by a flexible sealant 4 mineral wool

Whose face side is laminated with a glass fabric 5 with micro-holes. This absorbent layer is covered with a protective grid 6 of 5 mm diameter galvanized steel bars, which is embedded in the peripheral frame 2 of the plate. In the embodiment according to FIG. 4, the frame 2 projects beyond both faces of the board 1, with only one side of the absorbent layer being used to secure the absorbent layer. The glass or mineral fibers can also be integrated in the board material in the form of a mat. The absorbent layer may be, for example, recycled rubber or recycled plastic panels.

Claims (7)

PROTECTION REQUIREMENTS An acoustic panel formed by a carrier plate on which an absorbent layer or reflective means is attached, characterized in that the carrier plate (1) is designed as a monolithic cassette plate of glass or mineral fiber reinforced concrete, the thickness (t) of which is 5 to 30 mm. Panel according to claim 1, characterized in that (3). Panel according to claim 1 or 2, characterized in that said support plates (1) overlap on both sides thereof. in that the support plate is reinforced with ribs in that the peripheral frame (2) is spoiled Panel according to claims 1 to 3, characterized in that the support plates are dispersed in the concrete. that glass or mineral fibers Panel according to claims 1 to 3, characterized in that they are arranged in a mat in concrete. by glass or mineral fibers 20 May Panel according to one of Claims 1 to 5, characterized in that a mineral fiber mat (4) is fastened to the support plate (1), on the outside of which a glass fabric (5) with micro-holes is covered with a protective steel grid (6) ) recessed into the peripheral frame (2) of the support plate (1). Panel according to one of Claims 1 to 5, characterized in that a recycled rubber or recycled plastic panel is fixed to the support plate (1).