FR3068717A1 - WALL VALVE COMPRISING A SHOVEL AND A CURVED-WORK SUPPORT COMPRISING SUCH A VALVE - Google Patents

Abstract

The present invention relates to a wall valve of the type comprising a support (1) adapted to be fixed on a wall and comprising a main portion (11) which comprises an opening (13), a shovel (5) slidably mounted on said support ( 1) between a low position in which it closes said opening (13) and a high position in which it at least partially discovers said opening (13), said support (1) comprising guide means (15, 17) of said excavator (5) during its translation from said low position to said high position and vice versa. Typically, said main portion (11) of said support (1) and said shovel (5) have a cross section (111) at least partially in a circular arc and in particular in an arc.

Description

[Technical area]

The present invention relates to a wall valve and a structure, in particular made of concrete, equipped with such a valve.

[Prior art]

Hydraulic works for the purification of rainwater, such as diversion works, storm overflows, regulation works and distribution works include valves which regulate the flow of liquid. These specific hydraulic works are mainly found in the rainwater retention basins of road, motorway, airport, rail, urban development networks and treatment plants.

The valves currently used for this type of work are flat valves, intended to be fixed in civil engineering works of concrete, cast in place or prefabricated, on flat surfaces. For circular hydraulic structures, it is necessary to make special masonry which is placed between the valve and the curved wall of the structure in order to obtain the flat surface necessary for installing the valve.

Document FR 2 783 259 A1 describes a wall valve conventionally used in the aforementioned works.

[Technical problem solved by the invention]

An object of the present invention is to provide a wall valve which is simple to manufacture and which can be easily and directly mounted on a curved wall, in particular a concrete wall.

Another object of the present invention is to provide a valve as mentioned above which has a good seal.

Another object of the present invention is to provide a wall valve which is simple to manufacture and which can be easily and directly mounted on a curved wall, in particular a concrete wall which has good stability over time, in particular a seal. stable over time.

[Brief description of the invention]

In order to solve in particular at least one of the abovementioned technical problems, the present invention provides a wall valve of the type comprising a support capable of being fixed to a wall and comprising a main portion which has an opening, a shovel slidingly mounted on said support between a low position in which it closes said opening and a high position in which it uncovers at least partially said opening, said support comprising means for guiding said shovel during its translation from said low position to said high position and vice versa. Typically, according to the invention, said main portion and said shovel have a cross section at least partially in an arc, and in particular in an arc.

The circular arc portion allows the shape of the valve to be adapted to a wall in the form of a circular arc. The support can therefore be directly fixed to the wall in an arc without masonry, for example using screws and / or glue. The mounting of the valve on a structure is simple and inexpensive because it is quick and requires little labor.

Advantageously, the radius of curvature of the shovel is such that when the valve is closed, the concave inner face of the main portion and the convex outer face of the shovel are concentric and distant from the thickness of the seal which at least partially surrounds the l opening, the latter being in position crushed by the shovel.

The guide means are not limited according to the invention. According to a particular embodiment, they comprise, on each side of said opening, at least two stops distant from one another in the direction of translation of said shovel and in particular a plurality of stops distributed along the trajectory of said shovel, said stops are arranged at a distance from said main portion of said support and form on either side of said opening a free space in which said shovel slides. This embodiment is simple to perform and requires little material unlike metal slides, for example. The manufacturing cost of the valve according to the invention is thus reduced. In addition, the stops are less fragile than a slide which can be easily twisted when manipulating the valve, then hampering the proper functioning of the latter.

According to one embodiment, the support comprises on each side at least two legs which extend substantially perpendicular to said main portion and on each of said legs is fixed one of said stops, said stop being optionally adjustable in position according to the length of said legs, whereby the distance between said main portion and said stop is adjustable.

Advantageously, said shovel has a first edge and a second edge, which is optionally equipped with coupling means with an external operating system, it further comprises, on each of its lateral edges opposite and parallel to said direction of translation of said shovel, a guide rib which cooperates with said guide means of said support and which has a thickness which extends in a direction substantially perpendicular to said main portion of said support, said thickness being increasing along said lateral edges, said rib guide having a minimum thickness at said first edge of said shovel.

Such a rib makes it possible to properly crush the seal fitted to the opening without tearing it off and ensures good sealing at the valve of the invention, in particular in the low position, the rib forming a corner with the stops, for example.

The seal fitted to the opening is not limited according to the invention. Advantageously, the opening comprises a seal which extends over at least part of the edge of said opening and in particular over the entire perimeter of said edge of said opening and said seal comprises an elastically deformable sealing portion capable of being crushed against the surface of said shovel so as to ensure the liquid-tightness of said valve. This embodiment is particularly well suited to a valve comprising a shovel with a rib as mentioned above.

The shape of the opening is not limited according to the invention. Thus, it can be rectangular or substantially elliptical and in particular substantially circular, which makes it possible to easily connect a pipe to said opening.

According to a particular embodiment of said seal, it comprises a substantially flat fixing part and fixed on said support, for example by gluing and screwing.

Advantageously, said support comprises means forming a spring which press said shovel against said means for guiding said support, in particular in said low position. These spring means make it possible to further improve the sealing of the valve and also to limit the crushing of the seal fitted to the edge of the opening. For seals with a hollow O-ring portion which is crushed by the shovel to ensure sealing, the crushing of the seal must be between 20% and 30%. The aforementioned spring means make it possible to obtain a crushing less than or equal to 30% by volume of the toric portion, which prevents the seal from aging too quickly and splitting.

According to a particular embodiment of the spring-forming means, they comprise two spring-forming blades each disposed on one side of said opening, each blade comprising a fixing lug secured to said main portion and an elastic and substantially rectilinear deformable portion which s' extends in the direction of translation of said shovel, in the direction of said opening and, in the direction of said opening, said elastically deformable portion deviates from said main portion in a direction orthogonal to said direction of translation of said shovel.

The present invention also relates to a structure, in particular made of concrete, chosen from tanks, in particular cylindrical, hydraulic structures for the purification of rainwater, in particular diversion structures, storm overflows, control structures and distribution, which comprises a wall, in particular an internal wall, which comprises a curved portion which has a cross section forming an arc of a circle. Typically, according to the invention, it comprises on said curved portion, a valve according to the invention, said support being directly fixed on said curved portion and having a curvature which matches the curvature of said curved portion on which it is fixed.

[Figures]

The present invention, its technical characteristics and the various advantages which it provides will appear more clearly on reading the following description of an embodiment of the present invention presented by way of non-limiting example and which refers to the drawings annexed on which:

-Fig. 1 shows a perspective view of an embodiment of the valve according to the invention, the shovel being in an intermediate position between its low position and its high position;

-Fig. 2 shows a cross-sectional view of the seal fitted to the embodiment shown in FIG. 1;

- Fig. 3 shows a schematic side view of a particular embodiment of the spring means equipping the embodiment shown in FIG. 1, these spring-forming means serving in particular to press the shovel against the joint; and

- Fig. 4 shows a partial perspective view of a portion of a concrete structure equipped with two valves according to the embodiment shown in the

Fig. 1.

[Detailed description of an embodiment]

With reference to FIG. 1, the valve of the invention comprises a support 1 which comprises a main portion 11 in which an opening 13 is formed. The main portion 11 is curved and its cross section forms an arc of a circle visible at the lower edge 111 of the main portion 11. In the particular embodiment shown here, the opening 13 is substantially circular. The edge of the opening 13 is equipped with a seal 3 which is O-shaped and covers the entire perimeter of the opening 13. This seal will be more fully described with reference to FIG. 2. The valve 1 also includes a shovel 5 which slides relative to the main portion 11 of the support 1. In FIG. 1, the shovel 5 slides vertically in the direction D and has a first edge 53 which is free and a second edge 51 which comprises a coupling element 7 with a mechanism for setting in motion the shovel. This mechanism comprises in particular, for example a motor and means for controlling this motor. This mechanism is not shown in the figures, for the sake of simplification.

As shown in Fig. 1, the support 1 comprises on each side of the main portion 11, three tabs 15 which extend beyond the main portion 11, in a plane substantially perpendicular to a plane passing through the two lateral edges 112 and 114 of the main portion 11. The end of each leg 15 has a stop or pad 17, adjustable in position according to the length of the leg

15. Each pad 17 is screwed into a slot 19 formed along the length of the tab 15. The pad 17 slides in the slot 19 and can be fixed therein by screwing. The studs 17 on one side face the studs 17 fitted on the other side thus forming pairs of studs 17 which extend towards one another. The studs 17 equipping the same lateral edge 114 or 112 define with the main portion 11 a vertical space forming a rail in which the shovel 5 slides. The latter slides in this rail according to its height.

According to an alternative embodiment not shown, the studs 17 are mounted mobile in rotation on an axis perpendicular to the lug 15. They can thus turn on themselves and facilitate the sliding of the shovel 5 by rolling on the latter once they have been placed and fixed on the legs 15.

With reference to FIG. 1, the shovel 5 is curved and also has a radius of curvature. The radius of curvature of the shovel 5 is different from the radius of curvature of the main portion 11 because account must be taken of the crushing of the seal 3. The radius of curvature of the shovel 5 is such that when the valve is closed, the concave inner face of the main portion 11 and the convex outer face of the shovel 5 are concentric and distant from the thickness of the crushed joint 3, in particular, by 20%. The shovel 5 has two lateral edges 52 and 54 which are vertical. Each of the lateral edges 52 and 54 has a guide rib 510 which extends along the thickness of the shovel 5. This rib 510 forms an extra thickness which comes into contact with the studs 17 whatever the position of the shovel 5 in the rail formed by the studs 17 and the main portion 11. The rib 510 has a linearly increasing thickness from the first edge 53 towards the second edge 51. The rib 510 is thus thicker at the level of the second edge 51 of the shovel 5 than at the first edge 53 of the latter. Due to the possible position adjustment of the studs 17, it is possible to form a rail adapted to the increasing thickness of the rib 510; the surface of the rib 510 is therefore always in contact with the studs 17, which ensures the sealing of the valve of the invention.

With reference to FIG. 1, the main portion 11 comprises on each side of the opening 13 and above the latter of the spring blades 9 which will be described in more detail with reference to FIG. 3. In FIG. 1, only one of these blades 9 is visible.

With reference to FIG. 2, according to the particular embodiment of the seal 3 shown in FIG. 1, the latter comprises in cross section a fixing portion 31 which is flat 31 and glued and / or screwed onto the main portion 11 of the valve and a sealing portion 33 forming an O-tube which is capable of being crushed by elastic way.

Fig. 3 shows in more detail one of the blades forming a spring 9. The blade 9 has a fixing portion 91 which is flat and fixed on the surface of the main portion 11. The fixing portion extends in the direction of the lower edge

111 of the main portion 11 by a deformable portion 93 which forms an angle with the fixing portion 91. The deformable portion has one end secured to the fixing portion 91 and another end opposite the first which is further away from the surface of the main portion 11. This deformable portion 93 forms an acute angle with the surface of the main portion 11. The deformable portion 93 is extended by a return 95 which returns to the surface of the main portion 11 and which prevents the portion 93 from being too deformed under the pressure of the shovel 5 and increases the spring effect of the deformable part 93.

Fig. 4 shows a portion of a concrete structure which has a curved wall equipped with two valves according to the invention as shown in FIG.

1. One valve is shown in the high position while the second is in the low position. These valves are mounted by gluing and / or masonry and / or by means of screws, for example, on the internal surface of the structure and will therefore be entirely in contact with the water contained in the latter. Note that in Fig. 4, the two valves occupy little space and can be very close to each other.

The operation of the valve according to the invention will now be described with reference to Figs. 1 to 4.

In the high position, the shovel 5 discovers the entire opening 13. The portion of the rib 510 disposed at the first edge 51 of the shovel 5 comes into contact with the studs 17 which equip the lugs 15 which are arranged at the upper part of the opening 13, or even above the latter. When the shovel 5 displacement system is actuated, or simply under the effect of gravity when the shovel 5 is released, the latter falls towards the edge 111 of the main portion 11 of the support 1. The shovel 5 slides between the studs 17 and the surface of the main portion 11. The blades forming the spring 9 push the shovel 5 towards the studs 17 and thus also serve to guide it. Furthermore, the blades forming a spring 9 also make it possible to limit the crushing of the seal 3, and in particular of its O-ring portion 33 while ensuring the sealing of the valve.

The increasing thickness of the rib 510 makes it possible to gently crush the seal 3 without tearing it off and to properly block the shovel 5 between the studs 17 and the surface of the main portion 11, when the shovel 5 is in the low position. The curved shape of the shovel 5 makes it possible to withstand well the pressure of the water which is exerted behind it, in the pipe which opens at the level of the opening 13, for example. In the low position, as shown in FIG. 4, the first edge 51 of the shovel 5 abuts at the lower edge 111 of the main portion 11.11 is still held against the surface of the main portion 11 by the lugs 15 and the studs 17 disposed laterally at this edge lower 111.

Claims (10)

claims 1. Wall valve of the type comprising a support (1) capable of being fixed to a wall and comprising a main portion (11) which comprises an opening (13), a shovel (5), mounted sliding on said support (1) between a low position in which it closes said opening (13) and a high position in which it at least partially uncovers said opening (13), said support (1) comprising guide means (15, 17) of said shovel (5) during its translation from said low position to said high position and vice versa, characterized in that said main portion (11) of said support (1) and said shovel (5) have a cross section (111) at least partially in an arc and in particular in an arc. 2. Valve according to claim 1, characterized in that said guide means (15, 17) comprise on each side of said opening (13), at least two stops (17) spaced from each other in the direction for translating said shovel (5) and in particular a plurality of stops (17) distributed along the path of said shovel (5), in that said stops (17) are disposed at a distance from said main portion (11) of said support (1) and form on either side of said opening (13) a free space in which slides said shovel (5). 3. Valve according to claim 2, characterized in that said support (1) comprises on each side at least two legs (15) which extend substantially perpendicular to said main portion (11) and in that on each of said legs ( 15) is fixed one of said stops (17), said stop (17) being possibly adjustable in position according to the length of said legs (15), whereby the distance between said main portion (11) and said stop (17) is adjustable. 4. Valve according to any one of the preceding claims, characterized in that said shovel (5) has a first edge (53) and a second edge (51), which is optionally equipped with coupling means (7) with a external operating system, in that it further comprises, on each of its lateral edges (52; 54) opposite and parallel to said direction of translation of said shovel (5), a guide rib (510) which cooperates with said guide means (15, 17) of said support (1), in that said guide rib (510) has a thickness which extends in a direction substantially perpendicular to said main portion (11) of said support (1) and in that said thickness is increasing along said lateral edges (52; 54), said guide rib (510) having a minimum thickness at said first free edge (53) of said shovel (5). 5. Valve according to any one of the preceding claims, characterized in that said opening (13) comprises a seal (3) which extends over at least part of the edge of said opening (13) and in particular over the entire perimeter of said edge of said opening (13) and in that said seal (3) comprises an elastically deformable sealing portion (33) and capable of being crushed against the surface of said shovel (5) so as to seal against liquids from said valve. 6. Valve according to any one of the preceding claims, characterized in that said opening (13) is substantially elliptical and in particular substantially circular. 7. Valve according to any one of claims 5 and 6, characterized in that said seal (3) comprises a fixing part (31), substantially planar and fixed on said support (1). 8. Valve according to any one of the preceding claims, characterized in that said support (1) comprises spring means (9) which press said shovel (5) against said guide means (15, 17) of said support, in particular in said lower position. 9. Valve according to claim 8, characterized in that said spring means comprise two spring blades (9), each arranged on one side of said opening (13), each blade (9) having a fixing lug (91 ) integral with said main portion (11) and an elastic and substantially rectilinear deformable portion (93), which extends in the direction of translation of said shovel (5) in the direction of said opening (13) and in that in the direction of said opening (13), said elastically deformable portion (93) departs from said main portion (11) in a direction orthogonal to said direction of translation of said shovel (5). 10. Structure, in particular concrete, chosen from tanks, in particular cylindrical, hydraulic structures for the purification of rainwater, in particular diversion structures, storm overflows, control structures and distribution structures, which includes a notably internal wall which comprises a curved portion which has a cross section forming an arc of a circle, characterized in that it comprises on said curved portion, a valve according to any one of the preceding claims, said support (1) being directly fixed on said curved portion and having a curvature which matches the curvature of said curved portion on which it is fixed.