Anti-explosion hydraulic well lid

Abstract

The invention discloses an anti-explosion hydraulic well lid, and belongs to the technical field of a municipal road infrastructure. The anti-explosion hydraulic well lid comprises a well seat and a well lid plate, and is characterized in that the lower end of a hydraulic oil cylinder is movably connected with the lower part of the inner side of the well seat; the upper end of the hydraulic oil cylinder is fixedly connected with a shaft coupling positioner; the shaft coupling positioner is movably connected with the bottom of the inner side of the well lid plate; a guide seat is fixed at the inner side of the well seat; a guide shaft is arranged in the guide seat; the upper end of the guide shaft is movably connected with the bottom of the inner side of the well lid plate; the hydraulic oil cylinder communicates with a high-pressure oil pump through a high-pressure oil pipe; the output end of a CPU is connected with an electromagnetic valve of the high-pressure oil pump; a circuit board of a control circuit, the high-pressure oil pump, the high-pressure oil pipe, the electromagnetic valve, a hydraulic pump station and a motor of the hydraulic pump station are arranged in an anti-explosion electric control box; and the motor uses an anti-explosion motor. The anti-explosion hydraulic well lid has the advantages that a good isolation anti-explosion effect is achieved; the anti-explosion hydraulic well lid can be used in work environment with high anti-explosion requirements; in the whole movement process, the stress is uniform; safety and stability are realized; no any impactforce exists; and the problems of closed malposition, waterproof sealing strip abrasion and the like do not occur.

Description

technical field [0001] The invention belongs to the technical field of municipal road infrastructure, and in particular relates to an explosion-proof hydraulic manhole cover, which is used for urban underground comprehensive utility gallery projects. Background technique [0002] The comprehensive pipe gallery is a comprehensive corridor of underground urban pipelines. It is an important infrastructure that integrates various engineering pipelines such as power, communication, gas, heating, water supply and drainage to ensure urban operation. It can greatly facilitate power, communication, etc. The maintenance and repair of municipal facilities such as gas, water supply and drainage have very good development prospects. The manhole cover is an important part of the comprehensive pipe gallery. At present, the existing manhole covers have the following disadvantages: 1. They do not have explosion-proof functions, cannot meet the working environment with explosion-proof require...

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Problems solved by technology

The manhole cover is an important part of the comprehensive pipe gallery. At present, the existing manhole covers have the following disadvantages: 1. They do not have explosion-proof functions, cannot meet the working environment with explosion-proof requirements, and have serious safety hazards; 2. The opening method is hinge limit It can only be turned over after being limited by the zipper device. It only has the function of turning over, and there is no function of opening or closing the cover. During the turning process, only one side can only be opened first, resulting in one side falling and impact There are potential safety hazards such as dislocation of the oversized closing port and serious seal wear; 3. The working stroke of the hydraulic cylinder is short and the overall size is large, which cannot fully utilize the maximum space in the wellhead; Flow valve adjusts the speed of opening or closing (manual mode adjustment), but the effect is poor, which will lead to prolonged opening time or closing time

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