CN101889115A

CN101889115A - Manhole cover

Info

Publication number: CN101889115A
Application number: CN2008801193907A
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: 2010-11-17
Anticipated expiration: 2028-10-28
Also published as: BRPI0818485A2; ES2643320T3; WO2009056758A3; CN101889115B; RU2010121902A; PT2220296T; RU2460849C2; EP2220296B1; EP2220296A2; WO2009056758A2; BRPI0818485B1; FR2922908A1; FR2922908B1

Abstract

The invention relates to a manhole cover (2) that comprises a frame (4) defining a frame central 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 frame central 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, this framework define a frame center axis, and are 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 to center on the rotation of a hinge axes with respect to described framework between a detent position and a disengaging configuration, at least when covering member was positioned at disengaging configuration, framework knuckle and covering member knuckle were suitable for mutual disengaging; With a blocking element, described blocking element is suitable for stoping when covering member is positioned at disengaging configuration the covering member knuckle to break away from from the framework knuckle, and described blocking element comprises a base body and a footing.

Background technology

The manhole cover of known this type in document EP 1 160382.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 fully be arranged in the framework towards the central axis of manhole cover.

Summary of the invention

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

For this reason, object of the present invention is the manhole cover as above-mentioned type, and wherein, footing is radially directed outwardly with respect 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 comprises that an outside framework wall body and footing stride frame outside on the framework wall body;

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

-framework comprises framework surface, and described underframe surface is used to be close to a substrate, and footing extends below the underframe surface;

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

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

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

-framework knuckle has defined a knuckle opening, and when engaging or break away from, described opening can be passed and when locking parts in its vallecular cavity the time, it partly covers this knuckle opening and described covering member knuckle by the covering member knuckle; With

-footing is built solid material parcel at least.

Description of drawings

Reading to following description will be understood the present invention better, and this description only is exemplary, and carry out with reference to accompanying drawing, in the accompanying drawing:

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

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

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

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

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

The specific embodiment

Illustrate according to a manhole cover of the present invention on Fig. 1 top, it is by general reference numeral 2 indications.

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

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

Manhole cover 2 is arranged in by building in the substrate 15 that solid material (mat é riau de scellement) 16 make 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 shape that is truncated cone shape substantially around frame center axis X-X.

Gag 6 comprises the covering members 22 of a sealing, 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 is connected together with framework 4 and covering member knuckle 28 is connected together with gag 6.

Framework knuckle 26 and covering member knuckle 28 are suitable for allowing gag 6 with respect to the rotation of framework 4 around a hinge axes Y-Y, and described rotation is being carried out between a detent position shown on Fig. 1 and an open position, in described open position, gag 6 allows the opening 8 of framework 4 expose basically.

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

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 with respect to the section I-I symmetry of Fig. 1.Only being hinge 24,---as seen and in Fig. 2 eminence it illustrate on Fig. 1---will be described in more detail below.

As at Fig. 3---it is illustrated in the manhole cover 2 of the Fig. 2 under the situation of lack locking parts 46 (seeing below)---shown in going up, the covering member knuckle 28 of hinge 24 sees to have the shape that is L from overlooking.Covering member knuckle 28 comprises: an arm body 29, and described arm body substantially radially extends outwardly from the edge of overcover 22; Have the 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 the form of the face of cylinder part 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 laterally protrudes out along axis Y-Y extension gudgeon 30 and from arm body 29, and this gives covering member knuckle 28 and 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 that is L, and this shape is corresponding to the shape of covering member knuckle 28.Knuckle opening 32 comprises: a conduit 33, and described conduit extends in the framework 4 from the edge of described opening 8, is used for passing through of arm body 29 and gudgeon 30; With a recess 34, described recess prolongs conduit 33, is used for passing through of protruding pin 31.

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

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

With reference to Fig. 1, the flat horizontal surface 31A of flange 35 and protruding pin 31 is arranged such that: only when gag 6 is arranged in the disengaging configuration of a centre---formed one at described position overcover 22 with plane P S-PS and be approximately 90 ° angle, protruding pin 31 can pass recess 34.At this disengaging configuration,

knuckle

26,28 can---this direction is extended perpendicular to hinge axes Y-Y ground---break away 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, only opens block so that protruding pin 31 and flange 35 form one.

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

Manhole cover 2 comprises a blocking element 40 in addition, and described blocking element is suitable for stoping covering member knuckle 28 to break away 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, through vestibule 38 blocking element 40 to be inserted.

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

Base body 42 is plate bodies that are trapezoidal substantially, has two ledge 42A on its big end.

Footing 44 is plate bodies, and vertically protrude from base body 42 its little bottom at 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 a side relative with footing 44 sides 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), vallecular cavity 48 contiguous knuckle openings 32, and have a shape complementary mutually with the shape of the locking parts 46 that are associated.

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

The position that locking parts 46 are arranged in its vallecular cavity 48 is shown on Fig. 1, and ensuing description is with reference to this position.

The part of base body 42 is received within the vestibule 38.

The central axis X of footing 44 relative frameworks-X radial outward orientation, and below underframe surface 14, extend.In addition, footing 44 radially extends across frame outside on the framework wall body 20, and partly extends to outside the outside framework wall body 20.

Under mounted state, the lower part of footing 44 and base body 42 is fully for building solid material 16 parcels.

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

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

At last, blocking element 40 can use and change that need be on framework with existing manhole cover.

Claims

1. manhole cover (2), it comprises:

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

-one framework covering member (6), as a gag, 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 covering member (6) to center on the rotation of a hinge axes (Y-Y) with respect to described framework (4) between a detent position and a disengaging configuration,

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

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

It is characterized in that described footing (44) is radially directed with respect to described frame center axis (X-X) outwardly.

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) is striden frame on described outside framework wall body.

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

4. according to each described manhole cover in the claim 1 to 3, it is characterized in that described framework comprises framework surface (14), described underframe surface is used to be close to a substrate (15); And described footing (44) extends below described underframe surface.

5. according to each described manhole cover in the claim 1 to 4, it is characterized in that described framework (4) comprises a vestibule (38), described vestibule is suitable for admitting at least a portion of the base body (42) of described blocking element (40).

6. according to each described manhole cover in the aforementioned claim 1 to 5, it is characterized in that described footing (44) is made up of a protuberance, described protuberance vertically extends with respect to described base body (42).

7. according to each described manhole cover in the aforementioned claim 1 to 6, it is characterized in that, described blocking element comprises locking parts (46), described locking parts are received within the vallecular cavity (48) that is defined by described framework (4), described locking parts (46) form a block, and this block is used to stop the disengaging of described covering member knuckle (28).

8. manhole cover according to claim 7 is characterized in that, described framework knuckle (26) defines a knuckle opening (32), and when engaging or break away from, described knuckle opening can be passed by described covering member knuckle (28); And when described locking parts were arranged in its vallecular cavity, described locking parts partly covered this knuckle opening (32) and described covering member knuckle (28).

9. according to each described manhole cover in the aforementioned claim 1 to 8, it is characterized in that described footing (44) is built solid material (16) parcel at least.