CN2264758Y

CN2264758Y - Theft-proof cover for manhole

Info

Publication number: CN2264758Y
Application number: CN 95208674
Authority: CN
Inventors: 李正平; 洛小果
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-04-12
Filing date: 1995-04-12
Publication date: 1997-10-15
Anticipated expiration: 2005-04-12

Abstract

The utility model relates to a special theft-proof cover for a manhole used for an underground pipeline, an underground line and a sewer. The utility model is composed of a manhole ring, a manhole cover, and a pin shaft, and an outwards convex connecting support lug is arranged on the peripheral surface of the manhole cover, and a condensing traffic warning sign is arranged on an inner surface. An outwards convex connecting support seat is arranged on the edge of the cover ring, and the manhole cover is inserted in a groove of the connecting support seat of the cover ring through the connecting support lug arranged on the manhole cover. The manhole cover is hinged with the groove of connecting support seat through the pin shaft. The insufficiencies of easy moving of the manhole cover, easy missing and unsafe use of the prior art can be avoided.

Description

Anti-theft security inspection shaft lid

The utility model relates to the inspection shaft lid of a kind of underground pipeline, underground line and sewer special use.

The inspection shaft of existing underground pipeline, underground line and sewer special use lid has plenty of by two mutual disjunct well lids and manhole cover base and forms, thereby this not only is easy to generate to be shifted and unsafe factor occurs, and well lid is also easily lost; Have plenty of with than complicated hinge or iron chains well lid is connected with manhole cover base, this not only makes makes complexity, and still overcomes well lid displacement and unsafe deficiency.For example ZL93228709.3 disclosed " anti-stealing manhole cover " and ZL93203989.8 disclosed " anti-stealing manhole cover device " come to this.

The purpose of this utility model is to provide a kind of can prevent effectively that well lid from losing, displacement, anti-theft security inspection shaft lid safe in utilization.

The purpose of this utility model can reach by following technical measures, that is: this anti-theft security inspection shaft lid is made up of well lid, decorative cover and bearing pin.On the well lid side face, be provided with an evagination and connect journal stirrup, its inner surface is provided with the traffic caution sign of a band optically focused, on decorative cover ring limit, be provided with an evagination and connect bearing, well lid inserts in the connection bearing groove of decorative cover by the connection journal stirrup on it, and hinged by pivot pin, like this, both can make that well lid is firm to be covered into decorative cover tightly, upwardly-openable is about 110 ° again, makes optically focused traffic warning index plane sail direction to automobile, thereby improves traveling security.

The utility model compared with prior art because decorative cover and connect decorative cover and one is become on the bearing pin and the road surface of well lid constitutes stealthy syndeton, can prevent effectively that well lid from losing; Because the well lid outer peripheral face can prevent its displacement in being embedded in and encircling in the decorative cover effectively; Because the well lid inner surface is provided with the traffic caution sign of band optically focused when opening well lid, can point out the driver who head-on sails to note, thereby improves traveling security.

Concrete structure of the present utility model is provided by the following drawings.

Fig. 1 is a general structure schematic diagram of the present utility model;

Fig. 2 is a well lid structural representation of the present utility model;

Fig. 3 is a decorative cover structure mark intention of the present utility model.

Below will be further described concrete structure of the present utility model to closing accompanying drawing.

Referring to Fig. 1-3, the utility model anti-theft security inspection shaft lid, form by well lid, decorative cover and bearing pin, on well lid 1 side face, be provided with an evagination and connect journal stirrup 5, its inner surface is provided with the traffic caution sign 4 of a band optically focused, this sign be in the middle of one the band exclamation mark just put the optically focused triangle, leg-of-mutton base is with to be connected journal stirrup 5 perpendicular, on decorative cover 3 ring limits, be provided with an evagination and connect bearing 6, in the groove of well lid 1 by the connection bearing 6 of the 5 insertion decorative covers 3 of the connection journal stirrup on it, and hinged with it by bearing pin 2.

Claims

A kind of anti-theft security inspection shaft lid, by well lid, decorative cover and bearing pin are formed, it is characterized in that: on well lid (1) side face, be provided with an evagination and connect journal stirrup (6), its inner surface is provided with the traffic caution sign (4) of a band optically focused, be provided with an evagination and connect bearing (6) on decorative cover (3) ring limit, well lid (1) inserts by the connection journal stirrup (5) on it in connection bearing (6) groove of decorative cover (3), and well is hinged with it by bearing pin (2).