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A height-adjustable manhole cover structure

A manhole cover and height technology, applied in the field of height-adjustable manhole cover structure, can solve the problems of hidden safety hazards, subsidence, induction, etc., and achieve the effects of improving heat resistance and weather resistance, excellent high temperature resistance, and avoiding falling well accidents

Active Publication Date: 2017-01-04
兴迈数智科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Manhole covers are an important part of municipal engineering, but while manhole covers provide convenience for people, they also induce some serious accidents
[0003] After being used for a long time, the manhole cover is easy to sink due to the fall of the ground, which is not on the same plane as the ground, and there are certain safety hazards for cars traveling on uneven manhole cover roads.

Method used

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  • A height-adjustable manhole cover structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A heat-resistant ink, consisting of the following components in parts by weight:

[0047] 35 parts of hyperbranched resin; 6 parts of bis((3,4-epoxycyclohexyl) methyl) adipate; 6 parts of polypropylene glycol diglycidyl ether; 6 parts of bisglycidyl hexahydrophthalate; 12 parts of calcium carbonate; 10 parts of aluminum hydroxide; 10 parts of carbon black; 1 part of defoamer; 1 part of leveling agent; 1 part of antioxidant; 1 part of dispersant; 13 parts of acetone; 2 parts of triethylene tetramine.

[0048] When in use, dry and solidify within 90-100°C for 2 minutes. The dry film thickness is controlled at 25-30μm. Then it was aged in a forced air oven at 100° C. for 60 minutes.

[0049] The performance test methods and results are as follows:

[0050] Pre-bake (75°C): 25 minutes. After prebaking, the ink is not sticky.

[0051] Post bake (180°C): 60 minutes. After post-baking, the ink does not yellow.

[0052] Adhesion (GB / T9286-1998): Level 1.

[0053] Hardne...

Embodiment 2

[0058] A heat-resistant ink, consisting of the following components in parts by weight:

[0059] 43 parts of hyperbranched resin; 8 parts of bis((3,4-epoxycyclohexyl) methyl) adipate; 5 parts of polypropylene glycol diglycidyl ether; 5 parts of bisglycidyl hexahydrophthalate; 20 parts of talcum powder; 13 parts of carbon black; 1 part of defoamer; 1 part of leveling agent; 1 part of antioxidant; 1 part of dispersant; 15 parts of propylene glycol methyl ether acetate; 3 parts of triethylenetetramine.

[0060] After testing, it can be seen that the curing temperature of this embodiment is 90°C.

[0061] When in use, dry and solidify within 90-100°C for 2 minutes. The dry film thickness is controlled at 25-30μm. Then it was aged in a forced air oven at 100° C. for 60 minutes.

[0062] The performance test methods and results are as follows:

[0063] Pre-bake (75°C): 25 minutes. After prebaking, the ink is not sticky.

[0064] Post bake (180°C): 60 minutes. After post-bakin...

Embodiment 3

[0071] A heat-resistant ink, consisting of the following components in parts by weight:

[0072] 28 parts of hyperbranched resin; 5 parts of bis((3,4-epoxycyclohexyl) methyl) adipate; 8 parts of polypropylene glycol diglycidyl ether; 6 parts of bisglycidyl hexahydrophthalate; 8 parts of barium sulfate; 15 parts of talcum powder; 13 parts of carbon black; 1 part of defoamer; 1 part of leveling agent; 1 part of antioxidant; 1 part of dispersant; 1.5 parts of ethylene glycol ether; .

[0073] After testing, it can be seen that the curing temperature of this embodiment is 90°C.

[0074] When in use, dry and solidify within 90-100°C for 2 minutes. The dry film thickness is controlled at 25-30μm. Then it was aged in a forced air oven at 100° C. for 60 minutes.

[0075] The performance test methods and results are as follows:

[0076] Pre-bake (75°C): 25 minutes. After prebaking, the ink is not sticky.

[0077] Post bake (180°C): 60 minutes. After post-baking, the ink does no...

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Abstract

The invention discloses a height-adjustable well lid structure which comprises a well lid base and a well lid plate, wherein four support blocks are arranged on the well lid plate, and uniformly distributed on the lower surface of the well lid plate; the profile of the well lid base is ring-shaped; the lower surface of the well lid base is a flat straight plane; the upper surface of the well lid base is a heaved surface; N groups of fixed grooves used for being connected with the support blocks are formed in the well lid base; heat-resistant layers are arranged on the surfaces of the well lid base and the well lid plate. According to the height-adjustable well lid structure provided by the invention, different fixed groove groups are replaced to achieve different well lid plate heights, so that the flat surface with the same height as the pavement is realized, and the potential safety hazards of automobiles passing by the well lid structure are eliminated; besides, the highest fixed groove group is adopted to enable the well lid plate to be highest, so that the drainage volume of pavements in rainy days is greatly increased, and accidents that people fall into wells in rainy days are effectively avoided without the adoption of the traditional manner of eliminating well lids; therefore, the well lid structure is safe and practical.

Description

technical field [0001] The invention relates to the field of municipal manhole covers, in particular to a height-adjustable manhole cover structure. Background technique [0002] Manhole covers are used to cover roads or deep wells at home to prevent people or objects from falling. Tongzhou Liuhe Casting can be divided into metal manhole covers, high-strength fiber cement concrete manhole covers, resin manhole covers, etc. according to their materials. They are generally round and can be used for green belts, sidewalks, Motor vehicle lanes, docks, alleys, etc. Manhole covers are an important part of municipal engineering, but while manhole covers provide convenience for people, they also induce some serious accidents. [0003] After the manhole cover is used for a long time, it is easy to sink due to the drop of the ground, causing it to be not on the same plane as the ground, and there is a certain potential safety hazard for cars traveling on uneven manhole cover roads. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/14C09D11/00C08G83/00
Inventor 吴丽清
Owner 兴迈数智科技有限公司
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