Pit well cover with mechanical password locks and cam locking locating

A cam locking, mechanical technology, applied in construction, artificial island, infrastructure engineering, etc., can solve the problems of noise, low safety, poor anti-vibration, etc.

Active Publication Date: 2014-10-08
欧健
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical solution announced by the mechanical coded manhole cover adopts a coded lock device. Generally, at least three sets of the coded lock device are used to effectively prevent opening. However, during use, the gap between the manhole cover and the manhole cover seat is uneven It is easy to generate vibration, and noise will be generated when the vehicle passes by, and the stability will decrease with the passage of time; since the top sur

Method used

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  • Pit well cover with mechanical password locks and cam locking locating
  • Pit well cover with mechanical password locks and cam locking locating
  • Pit well cover with mechanical password locks and cam locking locating

Examples

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0021] See attached Figures 1 to 7 , the cellar well cover with mechanical coded lock and cam locking positioning in the figure, including a well cover seat 1, a well cover 2 matched with the inner diameter of the well cover seat 1, and a mechanical coded lock 3 arranged on the well cover 2; wherein: the well cover On the inner wall of seat 1, there is an installation sink platform 4, and the well cover 2 is located on the installation sink platform 4; on the inner wall of the well cover seat 1 above the installation sink platform 4, an inwardly protruding inner boss 17 is arranged, and on the inner boss 17 There are positioning grooves 5 for installation;

[0022] The outer edge wall of the well cover 2 has an outwardly protruding installation and positioning projection 6, and the installation and positioning projection 6 matches the installation and posit...

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PUM

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Abstract

The invention relates to a pit well cover, in particular to a pit well cover with mechanical password locks and cam locking locating. The pit well cover comprises a well cover base, a well cover matched with the inner diameter of the well cover base and a mechanical password lock arranged on the well cover. A mounting sinking table is arranged on the inner wall of the well cover base. The well cover is arranged on the mounting sinking table. An inner boss which protrudes inwards is arranged on the inner wall of the well cover. A mounting locating groove is formed in the inner boss. A mounting locating protruding block which protrudes outwards is arranged on the outer edge wall of the well cover. The mounting locating protruding block is matched with the mounting locating groove. At least two sets of mechanical password locks are placed on the well cover on the opposite face of the mounting locating protruding block. A locking device is arranged on the well cover. The locking device locates the well cover and the well cover base in a locking mode through the cam. Through the structure, manufacturing cost is lowered, safety is improved, stability is enhanced, and the prying resistance and the anti-vibration performance are improved.

Description

technical field [0001] The invention relates to a pit cover, in particular to a cellar well cover with a mechanical combination lock and a cam locking position which reduces manufacturing cost, improves safety, enhances stability, improves anti-prying performance and improves anti-vibration performance. Background technique [0002] The cellar well lid that uses on the existing market is of a great variety, and the structure is also varied. The widely used metal manhole cover has its own value of recycling, and its anti-theft performance is considered in the design. However, with the international and domestic terrorist activities and the behavior and possibility of man-made damage to well facilities, it is necessary to prevent others from opening and entering the well at will. This crime prevention function has become more urgent. [0003] The metal manhole cover in the prior art includes a manhole cover seat, a manhole cover matched with the manhole cover seat, the ma...

Claims

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Application Information

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IPC IPC(8): E02D29/14
Inventor 欧健林林
Owner 欧健
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