RU97403U1 - WATER DRAINAGE GRILL - Google Patents

Abstract

 1. The grate of the drainage device is made in the form of a rectangular reinforced block of plastic, equipped with a through hole in the center for installing the hose and elongated through holes on both sides of it. ! 2. The lattice according to claim 1, in which the surface of the rectangular reinforced block of plastic is made ribbed.

Description

The solution claimed as a utility model relates to road construction, namely, the construction of drainpipe lattices used to drain water from the carriageway of bridge structures and can be used to receive surface wastewater and precipitation when installed on engineering structures of roads (bridges, overpasses , viaducts, overpasses)

Typical projects that are currently in force, as well as canceled, on which a significant number of bridges were built, the bridge bed is carried out with the installation of drainage devices, including a funnel, drainage pipe and grate. All elements of this drainage device, in order to avoid corrosion, are made of cast iron.

Due to the theft of cast-iron (metal) parts of structures that has become widespread, it is necessary to replace the material of the product, and in addition to the strength qualities, it must have structural advantages that meet the requirements for the product during operation.

It is known to manufacture parts of culverts from plastic, for example, according to RF patent No. 85491, which solves the problem of ensuring safety and corrosion resistance, but leaves the question of lattice durability under shock loads and the need to clean from dirt, snow and ice. Since artificial structures on roads are objects of increased danger, they require additional safety measures and should have a large margin of safety with resistance to chemical reagents (sprinkling in winter) and 1 resistance to ultraviolet radiation. Plastic products do not meet these requirements.

Known manhole covers for manholes containing a frame with metal reinforcement filled with non-metallic binder material, which can be used concrete, polymer concrete, fiber concrete and other similar materials. For example, according to RF patents No. 34948, E02D 29/14; No. 67117, E02D 29/14 No., a disadvantage of the known analogues is the complexity of manufacturing a frame of polymer concrete with metal reinforcement.

The applicant sets as his task the creation of an easy-to-manufacture, reliable and user-friendly design of the grate of a drainage structure.

The applicant finds it difficult to choose a prototype, because the closest analogues, if they have a constructive similarity, do not achieve the task, therefore, the utility model formula is compiled without dividing into restrictive and distinctive parts.

The technical result of the proposed solution is to increase the strength of the drain grate, experiencing shock loads when hitting the wheels of the car, providing the possibility of washing and cleaning from debris and dirt, resistance to atmospheric effects and chemical reagents.

The technical result is achieved by the fact that in the drainage device the grill is made in the form of a rectangular reinforced block of plastic, equipped with a through hole in the center for installing a hose, on both sides of which there are through elongated holes. In order to improve the adhesion of the wheel when running into a drainage structure, the surface of the grating of plastic concrete can be made ribbed.

The execution of the lattice from plastic concrete will lead to the fact that when the car wheels are hit, even with the estimated prospective axle load, the lattice does not break. It is deformed, but continues to perform its functions. The stresses arising from this, associated with the stress of the material upon impact, are significantly reduced due to the use of plastic, while the strength is maintained due to the reinforcement of concrete. It also provides crack resistance due to its resistance to ultraviolet radiation and chemicals used to combat winter slippage.

A through hole in the center of the grill allows you to flush and clean the drainage device with a hose, especially in the autumn and spring, when there is a high likelihood of ice plugs inside the drainage device and the presence of ice on the lanes intended for motor vehicles.

Figure 1 shows a top view of the grill; figure 2 is a section along the axis of symmetry; figure 3 - funnel with the installed grid.

The drainage device comprises a funnel 2, into which a grill 1 is inserted at the top, and a drainage tube 3 is attached at the bottom.

The grill is made according to the size of the funnels previously installed in the bridge of the artificial structure. First, formwork is made, then the composition of the plastic is prepared (polymer and hardener). In a special container, the polymer and hardener are mixed with filler (sand, crushed stone, screenings of crushing crushed stone). The resulting mixture is used to fill the formwork; at the same time, a reinforcing lattice in the form of a rectangular frame made of a steel strip is laid and fixed in it. The mixture is compacted on the vibrating table and then left for 1-5 hours (depending on the ambient temperature) to gain strength, allowing you to remove the finished product.

The resulting product has a pleasant aesthetic appearance, its surface without cracks and sinks of a uniform color, while maintaining high performance, moreover, it is slightly inferior in weight to metal grids and is firmly held in the funnel.

The manufactured drainage grate samples were tested on artificial structures, on the overpass through access railway lines to the CHPP-3 in Khabarovsk, through bridges on the rivers Pravaya, Leva, and Berezovaya.

Claims (2)

1. The grate of the drainage device is made in the form of a rectangular reinforced block of plastic, equipped with a through hole in the center for installing the hose and elongated through holes on both sides of it. 2. The lattice according to claim 1, in which the surface of the rectangular reinforced block of plastic is made ribbed.