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High strength square steel structured rubber composite manhole cover and preparation methods

A composite material, high-strength technology, used in underwater structures, infrastructure engineering, artificial islands, etc., can solve problems such as manhole subsidence, detrimental to city appearance, driving comfort and stability, and safety hazards.

Active Publication Date: 2014-11-12
广东守创者智网科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, paving asphalt on the road surface is carried out in stages. When paving for the first time, the manhole cover is generally about 5cm higher than the road surface. After the road surface is rolled by vehicles, the road surface around the inspection well sinks to form an upward convex inspection well; or the damaged road surface is repaired and asphalt is added. When the inspection shaft is not raised synchronously, causing the inspection shaft to sink in disguise
This kind of "road navel" brings hidden dangers to the comfort, stability and safety of driving, and also damages the appearance of the city.

Method used

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  • High strength square steel structured rubber composite manhole cover and preparation methods
  • High strength square steel structured rubber composite manhole cover and preparation methods
  • High strength square steel structured rubber composite manhole cover and preparation methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example

[0054] [The first type] is a high-strength square steel structure rubber composite manhole cover:

[0055] refer to Figure 2 ~ Figure 3 , a high-strength square steel structure rubber composite manhole cover composed of rubber composite material 1, square steel skeleton 2 and reinforced composite cement 3, the key technology is:

[0056] A. Reinforced composite cement (reinforced) is poured into the welded square steel skeleton hole;

[0057] B. The shape of the square steel skeleton is like a "shoulder pole", and the lower flat ends are two pointed structures ("equal strength").

[0058] The required materials refer to image 3 , the standard square steel has:

[0059] 30mm×60mm×2mm( image 3 1, 2, 3 in);

[0060] 30mm×50mm×2mm( image 3 4);

[0061] 30mm×30mm×2mm( image 3 5 in);

[0062] 30mm×20mm×2mm( image 3 6, 7, 10, 12 in );

[0063] A total of four specifications of square steel materials and 30mm × 30mm flat iron.

[0064] Since the base of the first str...

Embodiment example 1

[0093] Implementation case 1, the preparation of rubber composite materials is described in detail below in combination with specific implementation cases:

[0094] 30 parts of polyurethane resin (the following formulas are all counted as "parts by weight"), 15 parts of glass fiber, 4.5 parts of polystyrene, 4.5 parts of styrene, 0.15 part of tert-butyl fat, 0.15 part of calcium hydroxide, 1 part of stearic acid 1 part of zinc stearate, 60 parts of regenerated fine rubber powder, 0.2 part of color paste or pigment powder.

[0095] Among the above raw materials, polyurethane resin is colloidal solvent type, polystyrene is granular, styrene is colloidal solvent type, tert-butyl fat is colloidal solvent type, calcium hydroxide is powder, and regenerated fine rubber powder is powder (120 mesh), the color paste is a paste, and the length of the glass fiber is 4-8cm. It is worth noting that during the manufacturing process of glass fiber, there is oily agent coated on the surface, ...

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Abstract

The invention provides a high strength square steel structured rubber composite manhole cover and preparation methods. The preparation methods include a preparation method of the rubber composite and preparation methods of main fillers and fine reclaimed rubber powder in the rubber composite. The rubber composite is taken as the main body and square steel is taken as the skeleton to manufacture the high strength square steel structured rubber composite manhole cover and a high strength lifting arch bridge square steel skeleton and rubber composite manhole cover. The manhole covers and the preparation methods have the following advantages that: the raw materials for preparing the two composites have wide sources, and vast waste tyres are consumed, thus turning waste into wealth and turning harm into good, which is a breakthrough in the aspect of applying nonmetallic composites to the manhole cover products; the two products utilize the excellent properties of metallic and nonmetallic materials to form hardness and softness matching and have a series of excellent properties; and the manhole cover product which can be adjusted and lifted is simple and practical to operate, can be popularized and applied to the manholes on the urban streets, highways and the like in a large scale and has a very broad application prospect.

Description

technical field [0001] The invention relates to the technical field of road facilities, in particular to a manhole cover and a manufacturing method thereof. Background technique [0002] Inspection well (also known as inspection well) is the entrance and exit leading to underground facilities: such as tap water, cable TV, sewage, telecommunications, electricity, gas, heat, fire protection, sanitation and other facilities. The composition of base and well cover (hereinafter referred to as inspection well cover), the composition of grate seat and grate cover (hereinafter referred to as water grate), are requisite important facilities in municipal construction, and also reflect one of signs of a city's appearance. The manhole cover is a closure that can be opened relative to the inspection well head, and the surface of the cover is the face that people and vehicles will pass through. There are some problems in the existing technology, and there are two main examples: [0003]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/14B29C70/68C08L17/00C08L75/04C08L25/06C08K13/04C08K7/14C08K5/03C08K3/22C08K5/09C08K5/098
Inventor 葛达旺
Owner 广东守创者智网科技有限公司
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