CN101889115B

CN101889115B - Manhole cover

Info

Publication number: CN101889115B
Application number: CN200880119390.7A
Authority: CN
Inventors: A·屈尼; J·博卡
Original assignee: Saint Gobain PAM SA
Current assignee: Saint Gobain PAM SA
Priority date: 2007-10-31
Filing date: 2008-10-28
Publication date: 2015-01-14
Anticipated expiration: 2028-10-28
Also published as: BRPI0818485A2; FR2922908A1; EP2220296B1; CN101889115A; EP2220296A2; WO2009056758A3; ES2643320T3; RU2010121902A; FR2922908B1; PT2220296T; RU2460849C2; WO2009056758A2; BRPI0818485B1

Abstract

The invention relates to a manhole cover (2) that comprises a frame (4) defining a central frame axis (X-X) and provided with a frame knuckle (26), and a frame covering member (6) provided with a covering member knuckle (28), the knuckles being adapted so as to allow the pivoting of the covering member (6) relative to the frame (4) into a disengagement position, the frame knuckle (26) and the covering member knuckle (28) being adapted to be disengaged from each other when the covering member (6) is in the disengagement position. The manhole cover of the invention includes a member for blocking the knuckle disengagement, wherein the blocking member includes a base body (42) and a leg (44). The leg (44) is oriented radially towards the outside relative to the central frame axis (X-X).

Description

Manhole cover

Technical field

The present invention relates to a manhole cover (regard de chauss é e), the manhole cover of described type comprises: framework, and this framework defines a central frame axis, and is furnished with a framework knuckle; The covering member of framework, as a gag, described covering member is furnished with a covering member knuckle, described framework knuckle and described covering member knuckle are suitable for allowing described covering member between a detent position and a disengaging configuration relative to the rotation of described framework around a hinge axes, at least when covering member is positioned at disengaging configuration, framework knuckle and covering member knuckle are suitable for mutual disengaging; With a blocking element, described blocking element is suitable for stoping covering member knuckle to depart from from framework knuckle when covering member is positioned at disengaging configuration, and described blocking element comprises a base body and a footing.

Background technology

The manhole cover of known this type in document EP 1 160 382.This manhole cover comprises a blocking element, and described blocking element can stop being separated of gag knuckle and framework knuckle.Described blocking element comprises a base body and a footing.Footing is radially directed and be fully arranged in framework towards the central axis of manhole cover.

Summary of the invention

The object of the invention is to increase further the antitheft safety of a gag of manhole cover and this adopts simple and economic device realization.

For this reason, object of the present invention is the manhole cover as the above-mentioned type, and wherein, footing is radially directed outwardly relative to the central axis of described framework.

According to special embodiment, manhole cover according to the present invention comprises following one or more feature:

-framework comprise an outside framework wall body and footing across on frame outside framework wall body;

-footing extends to outside outside framework wall body at least in part;

-framework comprises framework surface, and described underframe surface is for being close to a substrate, and footing extends in the below on underframe surface;

-framework comprises a vestibule, and it is suitable for the base body of receiving blocking element at least partially;

-footing is made up of a protuberance, and described protuberance vertically extends relative to base body;

-blocking element comprises locking parts, and described locking parts are received within the vallecular cavity defined by framework, and locking parts form a block, and this block is for stoping the disengaging of covering member knuckle;

-framework knuckle defines a knuckle opening, and when engaging or depart from, described opening can be passed by covering member knuckle, and when locking parts are in its vallecular cavity, it partly covers this knuckle opening and described covering member knuckle; With

-at least footing built solid material parcel.

Accompanying drawing explanation

To understand the present invention better to the reading of following description, this description is only exemplary, and carries out, in accompanying drawing with reference to accompanying drawing:

Fig. 1 is the sectional view by a sagittal plane of the hinge area according to manhole cover of the present invention, and described manhole cover comprises blocking element;

Fig. 2 is the top view of the hinge area of the manhole cover of Fig. 1;

Fig. 3 and Fig. 2 is similar, but does not have described blocking element;

Fig. 4 is the lateral view of the blocking element of the manhole cover of Fig. 1;

Fig. 5 is the phantom drawing of the blocking element of Fig. 4.

Detailed description of the invention

Illustrate that it is indicated by general reference numeral 2 according to a manhole cover of the present invention in Fig. 1 upper part.

Manhole cover 2 comprises the covering member of a framework 4 and the described framework 4 of a covering, and described covering member is a gag 6 in this case.

Framework 4 defines an opening 8 and is furnished with an inward flange 10, and described inward flange is furnished with a sound insulation pad (not shown).Framework 4 comprises: a upper surface 12, and it extends according to upper plane P S-PS; With a lower surface 14, it extends according to lower plane PI-PI.In the assembled state, the upper surface 12 of framework is substantially mutually neat with ground 18.Framework 4 defines a central frame axis X-X, and it extends with being basically perpendicular to plane P S-PS.

Manhole cover 2 is arranged in by building in a substrate 15 that solid material (mat é riau de scellement) 16 makes as concrete.Framework 4 is partly wrapped up in by the solid material 16 of block and is enclosed.

Framework 4 is defined by an outside framework wall body 20.This outside framework wall body 20 has the basic shape in truncated cone shape around central frame axis X-X.

Gag 6 comprises a covering members 22 closed, and it is suitable for hiding described opening 8.

Manhole cover 2 is furnished with a hinge 24, and it is formed by a framework knuckle 26 and a covering member knuckle 28.Framework knuckle 26 and framework 4 are connected together and covering member knuckle 28 and gag 6 are connected together.

Framework knuckle 26 and covering member knuckle 28 are suitable for allowing gag 6 relative to the rotation of framework 4 around a hinge axes Y-Y, and the detent position of described rotation shown on such as Fig. 1 and carrying out between an open position, in described open position, gag 6 allows the opening 8 of framework 4 expose substantially.

One maximum open position of the corresponding gag 6 of described open position, in described maximum open position, overcover 22 is tilt relative to upper surface 12, and limits an obtuse angle relative to its detent position.The arbitrary centre position of gag 6 between detent position and open position is moveable.

As shown on Fig. 2, manhole cover 2 comprises an extra hinge, and itself and hinge 24 are similar and coaxial with this hinge 24.Extra hinge and hinge 24 are symmetrical relative to the section I-I of Fig. 1.Being only hinge 24,---its on Fig. 1 visible and illustrate in Fig. 2 eminence---will be described in more detail below.

As shown at Fig. 3,---it illustrates the manhole cover 2 of the Fig. 2 when lack locking parts 46 (seeing below)---goes up, the covering member knuckle 28 of hinge 24 is from overlooking the shape seen and have in L.Covering member knuckle 28 comprises: an arm body 29, and described arm body substantially radially extends outwardly from the edge of overcover 22; Have a gudgeon 30 of axis Y-Y, it is arranged in the free end of arm body 29; With a protruding pin 31.

Gudgeon 30 has an external surface 30A, and described external surface 30A is in the form of cylindrical surface portion with axis Y-Y, and described external surface 30A is used for matching with a hinged surperficial 26A of framework knuckle 26.

Protruding pin 31 extends gudgeon 30 along axis Y-Y and laterally protrudes out from arm body 29, and this gives covering member knuckle 28 is the shape of L.Protruding pin 31 has a flat horizontal surface (m é plat) 31A.

Framework knuckle 26 comprises a upper knuckle opening 32, and described knuckle opening 32 allows the joint of covering member knuckle 28 in framework knuckle 26.

Knuckle opening 32 has the shape in L, and this shape corresponds to the shape of covering member knuckle 28.Knuckle opening 32 comprises: a conduit 33, and described conduit extends in framework 4 from the edge of described opening 8, for passing through of arm body 29 and gudgeon 30; With a recess 34, described recess extends conduit 33, for passing through of protruding pin 31.

Recess 34 is defined between a flange 35 of framework 4 and relative outside framework wall body 20.

At the detent position of gag 6, flange 35 partly covers the protruding pin 31 of the covering member knuckle 28 engaged in framework knuckle 26.

With reference to Fig. 1, the flat horizontal surface 31A of flange 35 and protruding pin 31 is arranged so that: only when gag 6 is arranged in the disengaging configuration in the middle of---define with plane P S-PS the angle that is approximately 90 ° at described position overcover 22, protruding pin 31 can pass recess 34.At this disengaging configuration, knuckle 26,28---this direction extends perpendicular to hinge axes Y-Y---can depart from mutually according to a direction, therefore allows gag 6 extracting from framework 4.

In the maximum open position of gag 6, flat horizontal surface 31A is supported on the soffit of flange 35, forms one only open block to make protruding pin 31 and flange 35.

In addition, framework 8 defines a vestibule 38 below hinge 24, and described vestibule extends until soffit 14 and leading to outside framework.

Manhole cover 2 comprises a blocking element 40 in addition, and described blocking element is suitable for stoping covering member knuckle 28 to depart from framework knuckle 26, especially when gag 6 is positioned at disengaging configuration.The installation in position of blocking element 40 carries out from the below of framework 4, and its mode is, when gag is positioned at open position, is inserted by blocking element 40 through vestibule 38.

This blocking element 40 illustrates in detail on Figure 4 and 5.It comprises base body 42, footing 44 and two locking parts 46.

Base body 42 is basic in a trapezoidal plate body, and its large end has two ledge 42A.

Footing 44 is plate bodies, and it vertically protrudes from base body 42 in the little bottom of base body 42.

One locking parts 46 are arranged in the end of each ledge 42A, and vertically protrude from this ledge.These locking parts 46 extend from the side relative with footing 44 side of base body 42.One locking parts 46 are associated with hinge 24, and another locking parts 46 are associated with extra hinge.

For each hinge, framework 4 defines a vallecular cavity 48 (Fig. 1), the contiguous knuckle opening 32 of vallecular cavity 48, and has a shape complementary mutually with the shape of the locking parts 46 be associated.

As shown on Fig. 1 and 2 that the manhole cover 2 that there is blocking element 40 is shown, when the locking parts 46 be associated with hinge 24 are received within vallecular cavity 48, lock parts 46 across frame on the recess 34 of knuckle opening 32, and therefore stop the rollback of protruding pin 31.Therefore locking parts 46 stops covering member knuckle 28 from the disengaging framework knuckle 26, even if gag 6 is positioned at its disengaging configuration.

Fig. 1 illustrating, locking parts 46 are arranged in the position of its vallecular cavity 48, and ensuing description is with reference to this position.

A part for base body 42 is received within vestibule 38.

Central axis X-the X of footing 44 opposing frame is radially directed, and extends in the below on underframe surface 14.In addition, footing 44 radially across on frame outside framework wall body 20, and partly extends to outside outside framework wall body 20.

In the assembled state, the lower part of footing 44 and base body 42 is fully wrapped up for building solid material 16.

In view of following reason, the design of base body 42 and footing 44 is favourable especially: and such as attempting to extract in the situation of locking parts 46 by inserting a crow bar between locking parts 46 and vallecular cavity 48, build solid material 16 and mainly bear extruding at footing 44 place.Therefore, blocking element 40 stands very large power.

In addition, the fact that footing 44 radially extends outwardly allows footing to be designed to have a large surface, and it can not with the mutual interference of opening covered by manhole cover, and this increases safety further.

Finally, blocking element 40 can use and not need the change on framework together with existing manhole cover.

Claims

1. manhole cover (2), it comprises:

-one framework (4), it defines a central frame axis (X-X), and is furnished with a framework knuckle (26),

-one framework covering member (6), described framework covering member is furnished with a covering member knuckle (28),

Described framework knuckle (26) and described covering member knuckle (28) are suitable for allowing described framework covering member (6) between a detent position and a disengaging configuration relative to the rotation of described framework (4) around a hinge axes (Y-Y)

At least when described framework covering member (6) is positioned at disengaging configuration, described framework knuckle (26) and described covering member knuckle (28) are suitable for mutual disengaging, and

-one blocking element (40), when described framework covering member is positioned at described disengaging configuration, described blocking element (40) is suitable for stoping described covering member knuckle (28) to depart from from described framework knuckle (26), described blocking element comprises a base body (42) and a footing (44)

It is characterized in that, described footing (44) is radially directed outwardly relative to described central frame axis (X-X);

Described blocking element comprises locking parts (46), described locking parts are received within the vallecular cavity (48) defined by described framework (4), described locking parts (46) form a block, and this block is for stoping the disengaging of described covering member knuckle (28).

2. manhole cover according to claim 1, is characterized in that, described framework (4) comprises an outside framework wall body (20), and described footing (44) across frame on described outside framework wall body.

3. manhole cover according to claim 2, is characterized in that, described footing (44) extends to described outside framework wall body (20) outward at least in part.

4. the manhole cover according to any one of Claim 1-3, is characterized in that, described framework comprises framework surface (14), and described underframe surface is used for being close to a substrate (15); Further, described footing (44) extends in the below on described underframe surface.

5. the manhole cover according to any one of Claim 1-3, it is characterized in that, described framework (4) comprises a vestibule (38), and described vestibule is suitable for receiving the base body (42) of described blocking element (40) at least partially.

6. the manhole cover according to any one of Claim 1-3, is characterized in that, described footing (44) is made up of a protuberance, and described protuberance vertically extends relative to described base body (42).

7. manhole cover according to claim 6, it is characterized in that, described framework knuckle (26) defines a knuckle opening (32), and when engaging or depart from, described knuckle opening can be passed by described covering member knuckle (28); Further, when described locking parts are arranged in its vallecular cavity, described locking parts partly cover this knuckle opening (32) and described covering member knuckle (28).

8. the manhole cover according to any one of Claim 1-3, is characterized in that, described footing (44) is at least by solid material (16) parcel of block.

9. manhole cover according to claim 1, is characterized in that, described framework covering member (6) is a gag.