CN2436555Y - Double-frame ultrastrong durable glass fibre reinforced plastic manbole cap - Google Patents

Abstract

The utility model relates to a double-framework superstrong durable glass fibre reinforced plastic well cover, which relates to a well cover of an inspection well for various urban underground pipelines. The utility model provides a wear-resistant and compression-resistant superstrong glass fibre reinforced plastic well cover, wherein, the surface of which has a layer of wear-resistant layer; double frameworks are designed in the structure; namely, the upper and the lower pars of a steel framework respectively have a layer of a bamboo framework; the well cover is composed of the wear-resistant layer, a secondary surface layer, the bamboo framework, the steel framework, the bamboo framework, and a bottom layer. The utility model has the advantages of good wear resistance, good durability, good compression-resistant performance, good brittleness resistance, clear and beautiful patterns, stable physical dimension, good sealing, and no noise when vehicles press. The utility model is applied to the various inspection wells on cities and roads.

Description

The superpower durable glass fibre reinforced plastic manhole covers of two skeletons

The utility model relates to feedwater, the dewatering installation of urban architecture, the various underground pipeline Cover of inspection well in particular to the city.

Cover of inspection well is the significant components that water supply and drainage in the urban operating mechanism, combustion gas and heat distribution pipeline, telecom communication, electricity cable pipe network etc. are used for the ancillary structure of manhole, gate shaft, measuring well, cell or passage import and export, its effect is when keeping the well head passage, prevents that pedestrian and vehicle from falling into or being absorbed in the well.How the Cover of inspection well in past is cylinder iron made, and some lawless person often steals well lid and sells off, and is greedy for small gains and makes on the road and a lot of traps to occur, causes damage for people's lives and properties, urban traffic.Therefore many in recent years knowledgeable people manage to change the well lid material one after another, seek to produce to use no or little iron and steel, cost is low, intensity is high, easy for installation Cover of inspection well.Wherein, the scheme that adopts the glass fiber reinforced plastic material to make new pattern manhole cover is come out continually, has all put down in writing different schemes such as Chinese patent application No. 89220207.6, No. 93243596.3, No. 94113785.6, No. 95228436.7, No. 96234366.8, No. 97200778.4 etc.Yet, the glass fibre reinforced plastic manhole covers that these schemes are made, fail all to solve that glass fiber reinforced plastic compressive strength is not high, easy to wear, shortcoming such as be not durable, though some schemes have also been considered measure such as reinforcement and adding skeleton on well lid, but effect is still undesirable, and particularly anti-wear performance and ageing-resistant performance fail obviously to improve.These shortcomings have restricted applying of glass fibre reinforced plastic manhole covers.

The purpose of this utility model, just be to provide a kind of can wear-resisting, measuring body superpower durable glass fibre reinforced plastic manhole covers.

For reaching this purpose, the well lid of designer's design adds the basic structure of high-intensity resin and steel frame except adopting glass fiber, adds the last layer wearing layer especially on its surface, to improve the anti-wear performance and the ageing-resistant performance of well lid; Simultaneously, having designed two skeletons in the structure of well lid, promptly is the last layer of the Ge Jia up and down bamboo ribs frame at the steel frame of simple glass steel well lid, to improve the compressive property and the toughness of well lid.Therefore, the structure of this well lid is made of wearing layer, inferior top layer, bamboo ribs frame, steel frame, bamboo ribs frame, bottom.

Wearing layer on this well lid is formed by high strength anti water-resin interpolation high-abrasive material, filler, aging-proof agent, colorant curing; High-abrasive material commonly used is the fine sand of brown corundum, white fused alumina, and aging-proof agent commonly used is a red mud; Filler commonly used is a flyash; Colorant commonly used also is red mud or flyash.

The inferior top layer of this well lid is the enhancement Layer that is formed by glass fiber and resin solidification.

The internal layer of this well lid is except bamboo, the double-deck skeleton of steel, and irritating therebetween has the resin mortar that contains filler and chopped strand; Filler commonly used is a fine sand of not being with mud, and chopped strand is various fibre of plant or artificial fiber.

The bottom of this well lid is that common glass fiber and resin solidification forms.

In addition, be bonded with a cushion at the walling crib of well seating face periphery with the well lid contact site, in order to damping with abate the noise, this cushion is with soft material manufacturing, shaping, and the soft material of using always is rubber, plastics and rubber-plastics material.

Accompanying drawing 1 is the structural representation of pair superpower durable glass fibre reinforced plastic manhole covers of skeleton, and 1 is that wearing layer, 2 is that time top layer, 3 is that bamboo ribs frame, 4 is that steel frame, 5 is that resin mortar, 6 is a bottom among the figure; Accompanying drawing 2 is the walling crib perimeter bond cushion schematic diagram of well seating face, and 7 is cushion course among the figure.

The well lid that uses the utility model to provide, anti-wear performance is good, detects through Guizhou Province's building material product quality monitoring testing station, and its abrasion resistance represents to reach 20mm with mill hole length, far below the requirement of GB GB/T12988-91 index＜37mm; Compressive property is good, and through the test of Guizhou Province's building science research inspection center, this well lid failure load reaches 209.6kN, satisfies " highway bridge and culvert design specifications " (JTJ021-98) 20 grades of technical requirementss of automobile-surpass; Anti-fragility can be also good, evidence, even if well lid is destroyed, also can not rupture separation, fragmentation still have part intensity.In addition, this well lid clear patterns is attractive in appearance, physical dimension is stable, airtight good, and vehicle was pressed noiseless.The utility model is applicable to the various inspection shafts on city and the highway.

Well lid of the present utility model, usually design size is: external diameter 650mm, be applicable to the inspection shaft of internal diameter 600mm, its thickness has two kinds: heavy (allowing wheel load 100kN) thickness is 35mm, light-duty (allowing wheel load 50kN) thickness is 30mm; Heavy quality is 25kg, and light-duty quality is 23kg.This well lid die casting of making by specification, and make with the moulding of extruder cure under pressure.

Claims (7)

1 pair of superpower durable glass fibre reinforced plastic manhole covers of skeleton adds high-intensity resin and steel frame is formed by glass fiber, and its feature comprises that (1) has one deck wearing layer on its surface; (2) in the structure of well lid, designed two skeletons, promptly one deck bamboo ribs frame respectively arranged up and down at steel frame; (3) well lid is made of wearing layer, inferior top layer, bamboo ribs frame, steel frame, bamboo ribs frame, bottom from top to down.

2 well lids as claimed in claim 1 is characterized in that wearing layer is formed by high strength anti water-resin interpolation high-abrasive material, filler, aging-proof agent, colorant curing.

3 well lids as claimed in claim 1 or 2 is characterized in that the high-abrasive material of using always is the fine sand of brown corundum, white fused alumina, and aging-proof agent commonly used is a red mud; Filler commonly used is a flyash; Colorant commonly used also is red mud or flyash.

4 well lids as claimed in claim 1, the inferior top layer that it is characterized in that this well lid is the enhancement Layer that is formed by glass fiber and resin solidification.

5 well lids as claimed in claim 1 is characterized in that filling has the resin mortar that contains filler and chopped strand between bamboo, the double-deck skeleton of steel.

6 as claim 1 or 5 described well lids, it is characterized in that the filler of using always is a fine sand of not being with mud, and chopped strand is various fibre of plant or artificial fiber.

7 well lids as claimed in claim 1 is characterized in that the bottom of this well lid is formed by common glass fiber and resin solidification.

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