CN2687263Y

CN2687263Y - Latch hook type anti-theft manhole cover

Info

Publication number: CN2687263Y
Application number: CN 200420033224
Authority: CN
Inventors: 蔡建阳; 郭辅涛; 陈德中
Original assignee: SANHUAN DECORATING HANDICRAFT FACTORY GUIYANG
Current assignee: SANHUAN DECORATING HANDICRAFT FACTORY GUIYANG
Priority date: 2004-03-11
Filing date: 2004-03-11
Publication date: 2005-03-23
Anticipated expiration: 2014-03-11

Abstract

The utility model discloses a hook type anti-theft manhole cover compising a manhole cover and a manhole ring. The edge of the back side of the manhole cover is provided with a hook, and the hook is matched with a pin fixed on the manhole ring; a cover opening square hole is arranged in the middle of the front side of the manhole cover. The utility model does not change the structure of the manhole ring and has the advantages of low production cost, good anti-theft effect, etc. When the anti-theft manhole cover of the hook type is arranged, only two pins are needed to be arranged on the existing manhole ring and the cover is covered to rotate a certain degree to make the hook on the manhole cover buckle with the pins on the manhole ring. The cover opening square hole at the front side of the manhole cover needs to be opened with a special tool, and therefore, the anti-theft manhole cover of the hook type has good anti-theft effect.

Description

The coupling type anti-stealing manhole cover

Technical field:

The utility model relates to the well lid that uses on a kind of road surface.

Technical background:

The metal well lid of urban road is stolen to be long-standing hard nut to crack.Though each side relevant person designs a lot of ways, taked a lot of measures, but can not get a desired effect.Its reason mainly is that way or the effect taked are bad, can't be antitheft, or need to change existing well lid walling crib structure, and cost is increased greatly, promote the use of difficulty.

Summary of the invention:

The purpose of this utility model is: provide a kind of and need not change the walling crib structure, easy for installation, the coupling type anti-stealing manhole cover of good anti-theft effect is to address the above problem.

The utility model is to constitute like this: it is by well lid (1), and walling crib (2) is formed, and hook (3) is housed on the edge at well lid (1) back side, cooperates with pin (4) on being fixed on walling crib (2); The positive middle opening square hole (5) that has at well lid (1).

The utility model does not compared with prior art have and need change the walling crib structure, and cost of production is low, advantages such as good anti-theft effect.During installation, only need on existing walling crib, load onto two pins, cover well lid, rotate an angle and hook on the well lid and the pin on the walling crib are buckled get final product.And the opening square hole in well lid front will could be opened with special tool, Gu it has good anti-theft effect.

Description of drawings:

Accompanying drawing 1 is a structural representation of the present utility model;

Accompanying drawing 2 is that the A of accompanying drawing 1 is to view.

The specific embodiment:

Embodiment of the present utility model: load onto earlier two hooks (3) on the edge at well lid (1) back side, fix two pins (4) again on the edge of walling crib (2), pin (4) cooperates with hook (3); The positive middle opening square hole (5) that is cast with at well lid (1).

Claims

1, a kind of coupling type anti-stealing manhole cover, it is by well lid (1), and walling crib (2) is formed, and it is characterized in that: hook (3) is housed on the edge at well lid (1) back side, cooperates with pin (4) on being fixed on walling crib (2); The positive middle opening square hole (5) that has at well lid (1).