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Nodular cast iron steel fiber well lid and well grate support base

A technology of ductile iron and steel fiber, which is applied to artificial islands, underwater structures, drainage structures, etc., can solve problems such as insufficient strength, car damage, and short lifespan of damage

Inactive Publication Date: 2015-06-17
韩子辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the loss of cast iron manhole covers and well grate supports used on urban streets and highways is very common. Manhole covers and well grate supports made of other materials are not strong enough, have poor load-bearing capacity, and have short wear life, which brings serious damage to pedestrians and vehicles. Great potential safety hazard, car crashes and injuries happen from time to time

Method used

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  • Nodular cast iron steel fiber well lid and well grate support base
  • Nodular cast iron steel fiber well lid and well grate support base
  • Nodular cast iron steel fiber well lid and well grate support base

Examples

Experimental program
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preparation example Construction

[0015] Preparation steps of the present invention

[0016] 1. First add 10-20kg of cement, 10-30kg of sand, and 10-35kg of gravel into the mixer;

[0017] 2. After stirring the dry material evenly, add 0.5-3kg of steel fiber and stir again;

[0018] 3. After stirring evenly, add 2-4kg of water and stir for 5-10 minutes to obtain steel fiber concrete soil;

[0019] 4. Put the mold on the vibrating table at the upper end of the vibrating machine, and then put the cast ductile iron integrated manhole cover or the upper seat ring of the well grate support frame down, put it upside down in the mold, and fill the steel fiber concrete material into the container. In the mold with ductile iron integrated manhole cover or well grate support skeleton, it is vibrated by the vibrating plate for 1-3 minutes, demoulded after forming, and finished manually.

[0020] The invention has the advantages of high overall strength, strong stability, large bearing capacity, good fatigue resistance,...

specific Embodiment approach

[0022] Figure 1-5 The shown nodular cast iron integrated manhole cover and well grate support skeleton is composed of supporting connecting column 2, upper seat ring 4, inner seat ring 5, hoop 3, support platform 6, bottom support ring 1 and embedded connecting plate 7, the seat There are 6-14 vertical supporting connecting columns 2 inside the hoop and the supporting connecting columns 2. The bottom end of the supporting connecting columns 2 is connected with a bottom ring 1, and a pre-embedded connecting plate 7 extending inward is arranged inside the bottom ring. The inner end of the connecting plate 7 is provided with a reserved hole 8, the inner middle part of the supporting connecting column 2 is provided with a support platform 6, the support platform 6 is provided with an inner race 5, and the outer side of the inner race is provided with an upwardly protruding protective plate 12. The inner side is provided with a downwardly protruding soil retaining plate 13, the mi...

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Abstract

The invention discloses a nodular cast iron steel fiber well lid and well grate support base, which is characterized in that a nodular cast iron integral well lid or well grate support base skeleton is arranged in a steel fiber concrete support base, the support base skeleton is wrapped by the steel fiber concrete, the upper top of the steel fiber concrete is covered by an upper seat ring of the skeleton, a supporting platform of the steel fiber concrete is covered by an inner seat ring of the skeleton, the bottom end of the steel fiber concrete is provided with a support bottom ring of the skeleton, after the steel fiber concrete and the nodular cast iron integral support base skeleton are poured, the adhesion stress is very strong, the upper seat ring and the support bottom ring can effectively guarantee the overall strength of the support base, the nodular cast iron steel fiber well lid and well grate support base has the characteristics of strong overall strength, large carrying capacity, good stability and fatigue resistance, reliability in application, long service life and low price, and is similar to a cement product in appearance, no recycling value exists, and the nodular cast iron steel fiber well lid and well grate support base is an ideal updating product for eliminating the urban traps or updating other well lid support bases and well grate support bases made of other materials.

Description

technical field [0001] The invention relates to a support for a well cover and a well grate, specifically, a well cover and a support for a well cover prepared by combining a nodular cast iron integrated well cover and a well grate support skeleton with steel fiber concrete. Background technique [0002] At present, the loss of cast iron manhole covers and well grate supports used on urban streets and highways is very common. Manhole covers and well grate supports made of other materials are not strong enough, have poor load-bearing capacity, and have short wear life, which brings serious damage to pedestrians and vehicles. Great potential safety hazards, car crashes and injuries occur from time to time. Contents of the invention [0003] Therefore, people have great demands on the anti-theft well cover and the well grate bearing that the load-bearing pressure is large and the service life is long. So far, no relevant reports about the present invention have been found. D...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/14E03F5/06C04B28/00C04B14/48B28B1/52B28B1/087
Inventor 韩子辉
Owner 韩子辉