CN2460567Y

CN2460567Y - Anti-theft manhole cover on road

Info

Publication number: CN2460567Y
Application number: CN 01203935
Authority: CN
Inventors: 张雷
Original assignee: Individual
Current assignee: 043400 Shanxi Province Xinzhou Xinfu District Kuang Cun Happy Street No 53; Zhang Lei; Zhang Zefeng; Zhang Zehua; Zhong Yating; Zhong Yawei
Priority date: 2001-02-05
Filing date: 2001-02-05
Publication date: 2001-11-21
Anticipated expiration: 2011-02-05

Abstract

The utility model relates to an anti-theft manhole cover on roads, which improves the existing anti-theft device existing of manhole covers on roads. The improved anti-theft manhole cover is composed of a movable plug 6, a plug hole 9, a key 10 and an elastic rubber block 7, wherein, the plug is inserted into the plug hole by rotating the key to achieve that the manhole cover 2 and a manhole cover pedestal 1 are fixed together, and the manhole cover is difficult to open by a non-special key. Accordingly, the utility model achieves the purposes that the utility model prevents the manhole cover on roads from being stolen and accidentally removed, and reduces loss and accidents.

Description

Antitheft road manhole

The utility model relates to a kind of improvement of antitheft road manhole.

At present, millions of road manholes are arranged in the world, be strayed into well in many people and object because of stolen and accidental removal every year, causes damage and damage, and its loss can't be estimated.Though anti-stealing manhole cover has also been used in more current places, because design is complicated, it is not too convenient to use.

The purpose of this utility model is to provide a cover can replace the existing antitheft road manhole of mobile or stolen road manhole easily.

The alarm of antitheft road manhole of the present utility model mainly by being cast in box-like lock body 11 on the well lid 2 and the pin hole 9 on the well lid base 1, form, and movable latch 6 and elastic block rubber 7 are housed in the lock body 11 by key 10, and movable latch 6 outwardly; Movable latch 6 middle parts have the movable latch endoporus 8 of an oval column, and the direction at its least radius place is towards the well lid center; The lock body 11 that movable latch is housed has two holes up and down with well lid 2: go up keyhole 3, following keyhole 4, wherein go up keyhole 3 and be strip, the one end be positioned at place, movable latch endoporus 8 center of circle axle directly over, its direction is vertical with the line of two latch positions, following keyhole 4 is rounded, be positioned at place, movable latch endoporus 8 center of circle axle under; Key 10 tips are slightly littler than the key middle part, its objective is key after last keyhole 3 insertions, and the key tip just in time is inserted in down in the keyhole 4.Fixed latches 5 is arranged at the bottom of well lid 2 another sides, and latch outwardly.

Concrete structure of the present utility model is provided by its accompanying drawing.

Fig. 1 is with the sectional drawing of two latches by the well lid center; Fig. 2 is the cross-sectional view of box-like lock body.

The utility model is described in further detail below in conjunction with specific embodiment.

Among the figure, the 1st, well lid base, the 2nd, well lid, the 3rd, last keyhole, the 4th, following keyhole, the 5th, Fixed latches, the 6th, movable latch, the 7th, elastic block rubber, the 8th, movable latch endoporus, the 9th, pin hole, the 10th, key, the 11st, box-like lock body.

Embodiment: when using well lid, Fixed latches 5 is aimed at a pin hole 9 on the well lid base 1, made movable latch 6 withdrawals with key 10 then, shut well lid 2, behind the taking-up key 10, movable latch 6 is pinned well lid under the promotion of elastic block rubber 7; If open well lid, then behind last keyhole 3 insertion keys 10, key 10 tips are just in time inserted down in the keyhole 4, key makes movable latch 6 compressing elastic block rubbers 7 towards the withdrawal of well lid center position, carries key 10 then up, opens well lid.

Simple in structure, easy and simple to handle by improving the antitheft road manhole in back, be easy to grasp; Owing to need private key just can open well lid, reduced the generation of the contingency that takes place because of stolen and accidental removal, protected the safety of the country and people's lives and properties.

Claims

1, a kind of antitheft road manhole is made up of well lid base, well lid, alarm and key, it is characterized in that alarm is mainly by being cast in box-like lock body on the well lid and the pin hole on the well lid base, key is formed, and movable latch and elastic block rubber are housed in the lock body, and movable latch outwardly; The lock body of movable latch and well lid are housed to have up and down two holes and promptly goes up keyhole, time keyhole; Fixed latches is arranged at the bottom of well lid another side, and latch outwardly.

2, antitheft road manhole as claimed in claim 1 is characterized in that described movable latch middle part has the movable latch endoporus of an oval column, and the direction at its least radius place is towards the well lid center.

3, antitheft road manhole as claimed in claim 1 is characterized in that described key tip is slightly littler than the key middle part, its objective is key after last keyhole insertion, and the key tip just in time is inserted in down in the keyhole.

4, antitheft road manhole as claimed in claim 1, it is characterized in that the described keyhole of going up is strip, the one end be positioned at place, movable latch endoporus center of circle axle directly over, its direction is vertical with the line of two latch positions, following keyhole is rounded, be positioned at place, movable latch endoporus center of circle axle under.

5, antitheft road manhole as claimed in claim 1 is characterized in that described movable latch pins well lid under the promotion of elastic block rubber.