Antitheft well head assembly

Abstract

The present invention provides an antitheft well head assembly including plastic well grate and plastic well base, a plurality of strip shape through holes are opened on the plastic well grate, a loop protruding table is arranged on outwards of the edge of the upper end of the plastic well grate, a loop groove suitable for the loop protruding table on outwards of the edge of the upper end of the plastic well grate is arranged on upper end of the plastic well base, the plastic well grate can be inserted in the well base, and the loop protruding table just falls into the loop groove on the upper end of the well base. The plastic well grate and well base are compression moulding formed after mixing, beating up, pressing, heat sealing, compounding 30-70% pulverized fuel ash, 10-30% waste plastic, 10-30% waste rubber, 5-15% synthetic resin. The invention improves toughness, consistency, wearing property, anticorrosion and shock resistance abilities. And the plastic material is made of pulverized fuel ash, waste plastic and waste rubber, which greatly reduces the cost of the plastic well grate and well base, meantime the problem that the waste plastic and the waste tyre are not tractable.

Description

(1) Technical field [0001] The invention relates to a wellhead device, in particular to a well block and a well grate used for ground drainage. (2) Background technology [0002] Flat, clean and unimpeded roads are one of the important symbols of a modern city and an important measure for the rapid development of the national economy. Since the reform and opening up, although our urban construction has made remarkable leaps and bounds, the wellhead devices on the road are still traditional well grates and well blocks made of cast iron. There are many problems in this wellhead device, one is that the cost is high, it is easy to lose, and it is easy to rust to death after long-term use, and sometimes the well grate has to be smashed in order to open the well grate; It is made of cast iron and has no anti-theft device, so it is easy to be stolen and sold by thieves, making the wellhead a hollow, and passing pedestrians and vehicles are easy to fall; the third is that the impac...

AI Technical Summary

Problems solved by technology

There are many problems in this wellhead device, one is that the cost is high, it is easy to lose, and it is easy to rust to death after long-term use, and sometimes the well grate has to be smashed in order to open the well grate; It is made of cast iron and has no anti-theft device, so it is easy to be stolen and sold by thieves, making the wellhead a hollow, and passing pedestrians and vehicles are easy to fall; the third is that the impact resistance is poor, and it is easy to sink after a strong impact. Broken; the fourth is that vehicles are prone to beating and noise when they pass by, and even displacement or overturning may occur, so there are vicious incidents that endanger the safety of vehicles and pedestrians.

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