Water grate

A water grate and water grate technology, which is applied in water supply devices, waterway systems, drainage structures, etc., can solve the problems of fast attenuation of bearing capacity, small water cross section, poor wear resistance, etc., and achieve improved bearing capacity and exquisite structure , the effect of the unique structure

Inactive Publication Date: 2011-06-01
吕云南
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem that they exist is: (one) take the cast iron anti-theft water grate that locks between the water grate and the base, no matter how tight the anti-theft mechanism can still steal for the intentional thief, and for the maintenance workers, It is difficult to open due to the corrosion of the lock cylinder
(2) The existing common structural water grates made of cement-based materials are easy to break around, and will collapse as a whole in severe cases
(3) Water grates made of resin-based materials have very poor wear resistance, are prone to aging, and their bearing capacity decays quickly. Under the action of heavy traffic loads, their safe service life is short
(4) Water grates of cement-based materials and resin-based materials with common structures have too small cross-section
(5) The existing water grates made of cement-based and resin-based materials need steel bars or steel plates as skeletons, so they will inevitably be stolen

Method used

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preparation example Construction

[0035] The preparation method of the cement-based composite water grate of the present invention mainly includes the following steps: preparing materials, molding the grate, preparing fiber bars, and installing fiber bars.

[0036] 1. Preparation

[0037] 1. Sieve the sand and keep the medium-coarse sand;

[0038] 2. Wash the sand and dry it;

[0039] 3. The fiber filaments prepared from grates are made into 5-25 mm long chopped fibers;

[0040] 4. Take out an appropriate amount of resin in the large container and stir evenly. For the resin with high viscosity, heat it in a water bath to about 40°C, add the diluent, and stir evenly for later use;

[0041] 5. If a stainless steel sheet is used as the surface cladding material, it must first be made into a 3-5 mm wide steel strip.

[0042] 2. Cover molding

[0043] The raw material composition of the cement-based composite water grate body of the present invention is as in Table 1.

[0044] (1) Make the installation mold. ...

Embodiment 1

[0073] Embodiment 1: cement-based composite water grate, its grate body is made of 23.63wt% fluoroaluminate cement; 7.15wt% water; 4.3wt% wollastonite fiber; 58.22wt% sand; 6.7wt% polyurethane Made of resin.

[0074] The specific manufacturing method is: divide the mold for preparing the grate body into several parts such as surface mold, core mold, side mold, bottom mold, and vibration source, etc., and make them separately. Put the side form on the support and connect it with the support spring, the vibration source is installed on the side form, and the rotation axis of the vibration source is parallel to the plane of the bottom form; the core form is fixed on the bottom plate of the side form; The bottom plate of the side form; the surface form passes through the mandrel and is placed on the upper part of the side form, and the surface form can be opened.

[0075] Use a two-speed high-shear mixer (high speed 900-1200 rpm; low speed 45-60 rpm), first mix cement, water, and...

Embodiment 2

[0084] Embodiment 2: cement-based composite water grate, the grate body is made of 34.06wt% colored cement; 9.54wt% water; 2.1wt% diabase fiber; 48.3wt% sand; 6wt% styrene resin. Its preparation method refers to embodiment one.

[0085] The bearing capacity of the obtained grate body is not less than 240KN, the self-weight is not more than 38KG, and the water-passing section is not less than 40% of the wellhead section.

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PUM

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Abstract

The invention relates to a water grate, which comprises a grate body, wherein the grate body consists of 4 to 20 square grids formed by crossly encircling 3 to 5 longitudinal beams and 3 to 6 cross beams; a group of patterns is engraved in each square grid; and the longitudinal beams, the cross beams and the patterns are molded integrally. The water grate is suitable for sealing entrances of underground box culverts, pipelines and blind ditches into which sewage and rainwater flow, allows water to pass through, intercepts impurities, bears loads of pedestrians and vehicles and can be opened. Compared with the conventional water grate, the water grate has a unique structural form and has high bearing capability; and the water grate has an exquisite structure and a larger water flow cross section compared with the conventional water grate which has an ordinary structure and is made of a cement-based material or a resin-based material. Moreover, the grate body is made of a cement-based composite material, so that the grate body does not have any recycling value and is theft-proof.

Description

technical field [0001] The invention relates to a water grate. Background technique [0002] Existing water grates are generally made of cast iron, and are often stolen because the materials have recycling value, and the loss is serious, and vehicle damage and casualty accidents often occur in inspection wells where water grates are lost. For anti-theft, people one, consider using anti-theft device on the structure of water grate, such as Chinese patent 87201534,02214025.5,92240214.0 etc.; , 90101519.9, 200420089819.1 and so on. The problem that they exist is: (one) take the cast iron anti-theft water grate that locks between water grate and the base, no matter how tight the anti-theft mechanism can still steal for the intentional thief, and for the maintenance worker, It is also difficult to open due to the corrosion of the lock cylinder. (2) The water grate with common structure made of existing cement-based materials is easily broken around its periphery, and will coll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03F5/06C04B28/00B28B1/14
CPCY02A30/60
Inventor 吕云南吕作彦
Owner 吕云南
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