FR2851590A1 - Highway manhole closing device, has internal vertical wall that collects water falling on cover and evacuates water towards main drain basin situated at exterior of frame and in communication with channel - Google Patents

Abstract

The device has a frame (1) with a peripheral channel (3) delimited between external and internal vertical walls (4,5) of the frame, so that a manhole cover (2) rests on the internal vertical wall of the channel. The internal vertical wall collects the water falling on the cover and evacuates it towards main drain basin of water situated at exterior of the frame and in communication with the channel.

Description

The present invention relates in a way

  general a watertight closure device for an opening, such as a manhole cover.

  It is more particularly intended for a device for closing an opening, of the type comprising a frame bordering the opening and one or more removable frame closing pads resting on it.

  In their closed position of the frame, the rectangular pads 10 are arranged side by side to form a flat cover, leaving play on the one hand between the adjacent pads and on the other hand between the peripheral edges of these pads and the edge peripheral of the frame bordering the opening.

  However, such a closure device has the major drawback that rainwater enters the opening through the above-mentioned clearances, risking damaging one or more members that may be present in the manhole, such as for example a valve 20 for checking a buried pipeline.

  The object of the present invention is to eliminate the above drawback by providing a watertight closure device for an opening, such as a manhole, comprising a frame bordering the opening and one or more removable pads for closing the frame resting on it, and which is characterized in that the frame comprises a peripheral channel delimited between the external vertical walls defining the sides of the frame and internal vertical walls of the frame parallel to the external vertical walls and in that the pad (s) rest on the internal vertical walls of the channel so that the latter collects the water falling on the pad (s) and discharges it towards a water collector 35 situated outside the frame in communication with the channel.

  When using several adjacent buffers juxtaposed for closing the frame resting on the corresponding internal vertical walls of the channel, a gutter is provided having its ends 5 open, mounted transversely between two opposite internal vertical walls of the channel by communicating with this the latter by its open ends and arranged vertically below the junction between two adjacent buffers so as also to collect water passing through this junction to discharge it into the channel.

  The gutter rests removably at its ends respectively on the two opposite walls of the gutter and is retained transversely to these two walls by two lugs secured respectively to the ends of the bottom of the gutter by projecting perpendicularly below this bottom and each engaged in the channel close to the internal face of the corresponding internal vertical wall of the channel.

  The gutter is removably attached to the two internal vertical walls of the channel and can be formed by a U-shaped profile with a flat bottom.

  A conduit is fixed through one of the external vertical walls of the frame by opening at the bottom of the channel to put the latter in communication with the water collector.

  In the case of frames with a larger opening and / or a greater number of adjacent and juxtaposed buffers for closing the frame resting on the corresponding internal vertical walls 30, at least one beam in the form of an open gutter is provided. at its ends, mounted transversely between two opposite internal vertical walls of the channel by communicating with the water collector by its open ends 35 and two adjacent buffers rest side by side on the beam on either side of it, so that their junction is located above the gutter of the beam so that it collects the water passing through this junction and discharges it towards the water collector.

  If at least two other adjacent buffers 5 juxtaposed for closing the frame are disposed, arranged on the corresponding internal vertical walls of the channel, being arranged parallel to the two preceding buffers adjacent to and juxtaposed with the latter, these two other buffers also rest side by side on the gutter-shaped beam dimensioned for this purpose and on either side of it so that their junction is located above the gutter of the beam so that it collects the water passing through this junction and discharges it towards the water collector 15 and two gutters are also provided having their open ends, mounted transversely substantially in extension of one another between the two opposite internal vertical walls of the channel and the beam communicating by their open ends 20 with the channel and the gutter of the beam, each transverse gutter t located vertically below the junction between two parallel buffers, so that the two gutters collect the water passing between the junctions of the parallel buffers and discharges it towards the water collector via the gutter and the gutter of the beam.

  The gutter-shaped beam is removably attached at its ends respectively to two open boxes in upper parts into which the ends of the gutter of the beam open so that the boxes collect the water circulating in this gutter, each recovery box of water being fixed to the frame under the channel, the bottom of which is open above the box so that it also collects the water 35 circulating in the channel.

  Each end of the beam is fixed by embedding in the corresponding wall of the water recovery box and the beam has several bars fixed between the walls of the gutter of the beam transversely to these to allow the beam to be placed manually. on the frame or remove it from the latter.

  Each water recovery box is connected to the external water collector.

  Each gutter rests removably at its ends respectively on the corresponding internal vertical wall 10 of the channel and the corresponding vertical wall of the beam and is retained transversely to these walls by two lugs respectively secured to the ends of the bottom of the gutter projecting perpendicularly in below this bottom, one of the legs being engaged in the channel near the internal face of the corresponding internal vertical wall and the other leg being engaged in the beam near the internal face of the corresponding vertical wall of the beam.

  The gutter is removably attached to the two vertical walls of the channel and the beam and can be formed by a U-shaped profile with a flat bottom.

  Each of the buffers is a rectangular plate resting on the internal vertical walls of the channel 25 and, if necessary, on the walls of the beam, by stiffening ribs integral with the underside of the buffer plate perpendicular thereto. so that each pad is flush with the upper edges of the outer vertical walls of the frame.

  Each buffer plate is curved substantially at right angles to two of its opposite edges, so as to engage in the channel and, if necessary, in the beam in the closed position of the frame.

  The invention will be better understood, and other objects, characteristics, details and advantages thereof will appear more clearly during the explanatory description which follows, made with reference to the appended drawings given solely by way of example illustrating several modes. of the invention and in which: - Figure 1 is an exploded perspective view of a device for closing an opening, such as manhole cover, according to a first embodiment of the invention; - Figure 2 is a top view of the device 10 of Figure 1 without the pads; - Figure 3 is an enlarged sectional view along line III-III of Figure 2; - Figure 4 is a sectional view along line IV-IV of Figure 2; - Figure 5 is a perspective view of a gutter forming part of the device of the invention; Figure 6 is a perspective view from below of a tampon of the device of the invention; FIG. 7 is a perspective view of a closure device with four closing buffers juxtaposed according to a second embodiment of the invention; - Figure 8 is an enlarged partial perspective view of the device of Figure 7 with one of the pads removed; - Figure 9 is a perspective view of the device of Figure 7 without the pads; - Figure 10 is an enlarged partial view of part of the device of Figure 9; - Figure II is a perspective view of a gutter-shaped beam forming part of the device of Figures 7 to 10; - Figure 12 is an enlarged perspective view along arrow XII of Figure 10; - Figure 13 is a sectional view in the vertical plane containing the line XIII-XIII of Figure 10; - Figure 14 is a partial perspective view showing the extension of the closure device of Figures 7 to 13 to a larger buffer; and FIG. 15 is a top view of a closure device with fifty-six plugs for closing the opening.

  Figures 1 to 6 show a first embodiment of the device of the invention for sealingly closing an opening, such as 10 manhole.

  This device comprises a frame 1 bordering the opening and one or more removable pads 2 for closing the frame 1 resting on the latter.

  In the present case, three buffers 2 are used to close the frame 1 side by side, but it is understood that the invention can be applied to a single buffer or to buffers of a number other than three .

  The frame 1 comprises a peripheral channel 3 delimited between the external vertical walls 4 defining the sides of the frame 1 and of the internal vertical walls 5 of the frame 1 parallel to the external vertical walls 4.

  As can be seen more clearly from FIGS. 3 and 4, the walls 4, 5 and the bottom wall 6 of the channel 3 have in cross section a U shape with a substantially flat bottom to form the channel 3 and the external walls 4 are surmounted of rectangular peripheral plates 7 fixed to the corresponding internal faces 30 of the walls 4, for example by welding, so that the plates 7 have a configuration of external walls of a height greater than that of the internal peripheral walls 5 of the frame 1.

  The device further comprises two identical gutters 8, each having its two open ends, and mounted transversely between two opposite internal vertical walls 5 of the channel 3 by communicating with the latter through their open ends.

  Each gutter 8 is constituted by a U-shaped profile with a flat bottom and rests detachably by its ends 5 respectively on the two opposite walls 5 while being retained transversely to these two walls by two lugs 9 integral with the face of the opposite bottom wall 10 to the side walls l of the gutter 8 projecting perpendicularly from this face. Each lug 9 is fixed in the vicinity of the end of the gutter 8 and engages in the channel 3 near the internal face of the corresponding internal vertical wall 5 of the channel 3.

  Each gutter 8 can be removably fixed to the frame 1, for example by sets of screws and wing nuts 12, only one of which is shown in dashed lines in FIG. 3, the screw passing through a corresponding end of the gutter 8 and a horizontal tab. of support 13 secured, for example by welding, to the corresponding wall 5 perpendicular thereto by projecting into the rectangular opening defined by the walls 5. The support tab 13 is arranged substantially flush with the upper edge of the corresponding internal wall 5.

  A conduit 14 is fixed through one of the external vertical walls 4 of the frame 1 by opening at the bottom of the channel 3 and projecting outside the frame 1 while being connected to a water collector (not shown) .

  Each buffer 2 is constituted by a rectangular plate 2a made of galvanized steel, stainless steel or aluminum. The edges 2b across the width of the plate 2a of the pad 2 are curved substantially at right angles from the internal face of the plate 2a which further comprises stiffening ribs or walls 2c with curvilinear edges projecting from the internal face of the plate 2a perpendicular thereto and in the direction perpendicular to the curved edges 2b. The stiffening walls 2c, in this case four in number, are paired and joined at their ends to form steps 2d 5 allowing each pad 2 to rest respectively on the two opposite walls 5 of the channel 3 to close the frame 1 so that the plate 2a of the pad 2 is flush with the upper edges of the plates 7, the curved edges 2b being located near the corresponding internal faces of the plates 7.

  If necessary, each buffer can be removably fixed to the frame 1 by fixing screws anchored to other lugs 13 integral with the opposite walls 5 between two gutters 8.

  When the three buffers 2 close off the frame 1, they thus define a horizontal covering of adjacent plates juxtaposed 2a and flush with the upper edges of the plates 7.

  In addition, in their closed position, the junctions between the adjacent buffers 2 are plumb above the gutters 8 respectively.

  Under these conditions, the rainwater which passes through the games remaining between on the one hand the junctions of the adjacent buffers 2 and on the other hand the peripheral edge of the buffers 2 and the external vertical walls 4, flow into the gutters 8 and the channel 3 to be evacuated towards the external collector through the evacuation duct 14.

  In case of access to the manhole after removing the buffers 2, the opening defined by the frame 1 can be completely cleared by simply removing the gutters 8 from this frame.

  Of course, when using a single pad 35 closing a corresponding rectangular frame, no gutter 8 is necessary and only the channel 3 collects rainwater passing through the clearance remaining between the frame 1 and the edges buffer devices 2.

  Figures 7 to 13 show a second embodiment of a waterproof cover with several buffers 5 resting on a frame with a larger opening than that of the first embodiment.

  According to this second embodiment, the frame 1 is of a general structure identical to the frame of the first embodiment, that is to say that it comprises a peripheral channel 3 delimited by external vertical walls 4 and lower vertical internal walls 5 of this frame.

  In the present case, the identical buffers 2 are four in number and are mutually adjacent and juxtaposed in their closed position of the frame 1, but it is understood that their number may vary as will be seen later.

  A gutter-shaped beam 15 open at its ends is mounted transversely between two corresponding internal vertical walls 20 5 of the channel 3, in this case those extending along the length of the frame 1. The beam 15 is thus located in the median plane of frame 1 transverse to the longitudinal walls of frame 1.

  The beam 15 is removably fixed at its ends respectively to two boxes 16 open at their upper parts and into which the ends of the gutter of the beam 15 open.

  Each box 16, of generally parallelepiped shape, is tightly fixed under the bottom wall 6 of the channel 3 in the middle of the length of the corresponding wall 4 of the frame 1 and the bottom wall 6 is open just above the vertical box 16 for pouring rainwater therefrom from the channel 3 on each side of the box 16. Two partitions 17 are fixed perpendicularly to the bottom wall 6 on each side of the box 16 and are inclined relative to the walls internal 5 of the channel 3 so as to divert the water flow towards the wall 4 and pour the water into the box 16.

  The vertical wall 16a of the box 16 located on the 5 side of the opening of the frame 1 comprises a cutout 16b defining with the cutout 5a of the wall 5 produced in the same plane above the cutout 16b, an opening in the form of T in which is embedded a corresponding end portion of conjugate shape of the beam 15, the open end of which thus enters the box 16. The latter comprises integral with the wall 16c opposite the wall 16a a conduit 18 passing through the wall 16c opening into the box 16 in the vicinity of the bottom wall 16d thereof. The conduit 18 is connected to the external water collector.

  The beam 15 comprises several bars 19 fixed between the side walls 15a of the beam 15 transversely to these to allow the manual gripping of the beam 15 and fix it by embedding of its ends respectively in the two opposite boxes 16 or remove it of frame 1 to completely clear the opening thereof.

  Each pad 2, of dimensions greater than the pads 2 of the first embodiment, is of a general structure identical to the latter, except that the stiffening walls or ribs 2c are straight and separated from each other parallel to the direction longitudinal of buffer 2.

  Each pad 2 includes handles 2e of gripping thereof.

  Once the frame 1 is sealed, the beam 15 is arranged transversely between the two longitudinal walls 5 by embedding its ends respectively in the two boxes 16, then the pads 35 2 are arranged on the frame 1 parallel in the direction of their lengths to longitudinal walls 5 resting at the ends of their stiffening ribs 2c on the one hand on transverse walls 5 extending across the width of the frame 1 and on the other hand on the side walls 15a with horizontal edges of the beam 15. Thus, each buffer 2 has one of its curved transverse edges 2b engaging in the corresponding part of transverse channel 3 and its other opposite curved edge engaging in the gutter of the beam 15.

  The two adjacent buffers 2 located on each side 10 of the longitudinal wall 4 of the frame 1 have their junction located vertically above the beam 15.

  The device of this second embodiment also comprises two gutters 8, each identical to the dimensions close to the gutter 8 of the first embodiment, and mounted between the beam 15 and the opposite transverse walls 5 of the channel 3 and in alignment with on either side of the beam 15, so that its open ends open into the gutter of the beam 15 and into the channel 3. Each gutter 8 is held transversely to the beam 15 and to the transverse wall 5 by its two lugs 9 engaged on the one hand in the beam 15 near the internal face of its corresponding side wall 15a and on the other hand in the gutter 3 near the internal face of the corresponding transverse wall 25.

  Each gutter 8 is also removably fixed vertically below the junction of the two adjacent pads and which extends in a direction parallel to the longitudinal walls 4 of the frame 1.

  The rainwater passing through the junction of the two adjacent buffers 2 perpendicular to the transverse wall of the frame 1 is collected by the corresponding gutter 8 and poured at each of the ends of this gutter into the channel 3 and the beam 15 respectively. In addition, the rainwater passing through each junction of the two adjacent buffers 2 perpendicular to the longitudinal wall 4 of the frame 1 is collected by the beam 15 and discharged, together with the rainwater coming from the gutters 8, into the recovery boxes 16 to then be evacuated to the water collector.

  As for the rainwater passing through the clearances between the peripheral walls 4 of the frame 1 and the adjacent peripheral edges of the closure pads 2, they circulate in the channel 3 to be discharged in the two water recovery boxes 16 and towards the 10 water collector.

  FIG. 14 is an alternative embodiment of the device of the second embodiment and according to which a second gutter-shaped beam 15 is added parallel to the first at a distance from the latter allowing the mounting of two adjacent buffers between these two beams in transverse direction to the latter, other adjacent buffers, not shown, also being mounted between the second beam 15 and the transverse wall 5 of the channel 3 as in the second embodiment.

  Thus, by adding other beams 15 and making, if necessary, the frame in several elements assembled to each other, for example by bolting, it is possible to form covers with as many as 25 buffers as necessary, and the figure 15 shows, by way of example, a cover with fifty six buffers mounted on a frame 1 by a set of parallel beams 15 with the gutters 8 transverse to the beams 15 located vertically below the 30 junctions between adjacent buffers for the to put in communication in particular with the adjacent beams so as to evacuate rainwater towards the various boxes of recovery of water connected by an appropriate network of conduits 14 to the external collector 20.

  The device of the invention thus makes it possible to ensure perfect sealing of manhole openings without using seals, unlike the devices known up to now. In addition, to access the manhole after removing the buffers, the opening can be completely cleared by simply removing the gutters and the removable beams from the frame. In addition, the device of the invention is designed to meet all the resistance classes currently in force.

Claims (16)

  1. A watertight closure device for an opening, such as a manhole cover, comprising a frame (1) bordering the opening and one or more removable pads (2) for closing the frame (1) resting thereon, characterized in that the frame (1) comprises a peripheral channel (3) delimited between the external vertical walls (4) defining the sides of the frame and 10 of the internal vertical walls (5) of the frame parallel to the vertical walls external (4) and in that the buffer (s) (2) rest on the internal vertical walls (5) of the channel (3) so that the latter collects the water falling on the buffer (s) (2) and 15 drains it to a water collector located outside the frame (1) in communication with the channel (3).   2. Device according to claim 1, characterized in that it further comprises, when using several adjacent juxtaposed buffers (2) for closing the frame (1) resting on the internal vertical walls (5) corresponding to the channel (3), a gutter (8) having its open ends, mounted transversely between two opposite internal vertical walls (5) of the channel (3) by communicating with the latter by its 25 open ends and arranged vertically below the junction between two adjacent buffers (2) so as to also collect water passing through this junction to evacuate it into the channel (3).   3. Device according to claim 2, characterized in that the gutter (8) rests removably by its ends respectively on the two opposite walls (5) of the channel (3) and is retained transversely to these two walls (5) by two legs (9) respectively secured to the ends of the bottom (6) of the gutter 35 (8) projecting perpendicularly below this bottom and each engaged in the channel (3) near the internal face of the vertical wall corresponding internal (5).   4. Device according to claim 2 or 3, characterized in that the gutter (8) is removably fixed to the two internal vertical walls (5) of the channel (3).   5. Device according to one of claims 2 to 4, characterized in that the gutter (8) is constituted by a U-shaped profile with a flat bottom.   6. Device according to one of the preceding claims, characterized in that a duct (14) is fixed through one of the external vertical walls (4) of the frame (1) by opening at the bottom (6) of the channel (3) to put the latter in communication with the water collector.   7. Device according to claim 1, characterized in that it further comprises, when using at least two adjacent juxtaposed buffers (2) for closing the frame (1) resting on the corresponding internal vertical walls ( 5) of the channel (3), at least one beam (15) in the form of a gutter open at its ends, mounted transversely between two opposite internal vertical walls (5) of the channel (3) by communicating with the water collector by its open ends and in that the two adjacent buffers (2) rest side by side on the beam (15) on either side thereof so that their junction is located above the gutter of the beam (15) so that it collects the water passing through this junction and discharges it towards the water collector.   8. Device according to claim 7, characterized in that, when at least two other adjacent juxtaposed buffers (2) for closing the frame are used, arranged on the corresponding internal vertical walls (5) of the channel (3). ) being arranged parallel to the two preceding buffers (2) adjacent to and juxtaposed with the latter, these two other buffers (2) also rest side by side on the beam (15) in the form of a gutter sized for this purpose and on the and other of it, so that their junction is located above the gutter of the beam (15) so that it collects the water passing through this junction and discharges it towards the collector of water, and in that it also comprises two gutters (8) having their open ends, mounted transversely substantially in extension of one another between the two other opposite internal vertical walls (5) of the channel (3) and the beam (15) in communicating through their open ends with the channel (3) and the gutter of the beam (15), each transverse gutter (8) being located vertically below the junction between two parallel buffers (2), so that the two gutters (8) collect the water passing between the junctions of the parallel buffers (2) and discharges it towards the water collector via the channel (3) and the gutter of the beam (15 ).   9. Device according to claim 7 or 8, characterized in that the gutter-shaped beam (15) is removably fixed at its ends respectively to two boxes (16) open in upper parts into which the ends of the gutter open out. the beam (15) so that the boxes (16) recover the water circulating in this gutter, each water recovery box (16) being fixed to the frame (1) under the channel (3) whose bottom (6 ) is open above the box (16) so that it also collects the water circulating in the channel (3).   10. Device according to claim 9, characterized in that each of the ends of the beam (15) is fixed by embedding in the corresponding wall (16a) of the water recovery box 35 (16) and the beam (15) comprises several bars (19) fixed between the gutter walls (15a) of the beam (15) transversely to these to allow the beam (15) to be placed manually on the frame (1) or to remove it from the latter.   11. Device according to claim 9 or 10, characterized in that each box (16) is connected to the external water collector.   12. Device according to one of claims 8 to   11, characterized in that each gutter (8) rests removably at its ends respectively on the corresponding internal vertical wall (5) of the channel 10 (3) and the corresponding vertical wall (15a) of the beam (15) and is retained transversely to these walls (5,15a) by two legs (9) respectively secured to the ends of the bottom (6) of the gutter (8) projecting perpendicularly below this bottom, one of the legs (9) being engaged in the channel (3) near the internal face of the corresponding internal vertical wall (5) and the other tab (9) being engaged in the beam (15) near the internal face of the corresponding vertical wall (15a) of the beam (15).   13. Device according to claim 12, characterized in that the gutter (8) is removably attached to the two vertical walls (5,15a) of the channel (3) and of the beam (15).   14. Device according to one of claims 8 to   13, characterized in that the gutter (8) consists of a U-shaped profile with a flat bottom.   15. Device according to one of claims   previous, characterized in that each of the buffers 30 (2) is a rectangular plate (2a) resting on the internal vertical walls (5) of the channel (3) and, if necessary, on the walls (15a) of the beam (15), by stiffening ribs (2c) integral with the underside of the buffer plate (2a) perpendicular thereto so that each buffer (2) is flush with the upper edges of the external vertical walls (4) of the frame (1).   16. Device according to claim 15, characterized in that each buffer plate (2a) is curved substantially at right angles to two of its opposite edges, so as to engage in the channel (3) and, if necessary , in the beam (15) in the closed position of the frame (1).