Classifications

• • E—FIXED CONSTRUCTIONS
  • E03—WATER SUPPLY; SEWERAGE
  • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
  • E03B9/00—Methods or installations for drawing-off water
  • E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
  • E03B9/04—Column hydrants
• • E—FIXED CONSTRUCTIONS
  • E03—WATER SUPPLY; SEWERAGE
  • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
  • E03B9/00—Methods or installations for drawing-off water
  • E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
  • E03B9/08—Underground hydrants
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T137/00—Fluid handling
  • Y10T137/5327—Hydrant type
  • Y10T137/5456—With casing
  • Y10T137/5468—Cap, cover or hood
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T137/00—Fluid handling
  • Y10T137/5327—Hydrant type
  • Y10T137/5485—With valve at outlet

Definitions

• the field of the present invention is that of fire-fighting means and in particular water supply terminals, such as poles and hydrants, united under the generic term of hydrants.
• a fire hydrant is, as its name suggests, a hollow pole in which is arranged a set of controls, and which allows the delivery of water, under pressure, from the main supply network, to fire-fighting officers.
• the pole is equipped with plugs on which firemen come to connect their pipes, which are closed by plugs outside their period of use.
• the controls make it possible, by means of a flywheel, fixed or removable, or a key fitting on an operating nozzle, to move the valve of a valve, called a valve, which is placed downstream of the delivery pipe of the water and whose opening causes the provision of water.
• the post is very often locked in a hood with a door lock to try to avoid inadvertent sampling of water.
• a fire hydrant differs somewhat from a pole in that it is completely embedded in the ground so as to be less visible, but it remains almost identical in its operation, namely that it has a plug for the connection of the fire brigade hoses and a maneuvering nozzle, on which a key is fitted, to actuate the valve and allow water from the main network to flow.
• Each pole like each mouth, is always preceded upstream, just before connecting to the pipe from the water supply network, a "keyed".
• This one thus designated by abuse of language, is in fact an isolation valve which makes it possible to isolate the hydrant of the main network.
• the problem frequently faced by municipalities is the theft of water by an abusive connection to these hydrants.
• various solutions have been proposed, which aim either to prevent the rotation of the control tube of the valve or to prohibit access to the connection jacks of the pipes.
• the object of the present invention is to remedy these drawbacks by proposing a locking device positioned inside the post or the mouth so as to prevent access to the water, even in case of deterioration, whether intentional or accidental, of the cap.
• the device interacts for this with the control tube of the valve so as to prevent the extraction of the plug either towards the outside or towards the inside of the hydrant.
• the subject of the invention is a device for securing a fire hydrant comprising a pipe, a control tube provided at one end with a maneuvering nozzle and at the other end of a valve adapted to to allow said water pipe to be fed from the main network, at least one plug connected to said pipe capable of receiving fire extinguishing pipes, said plug comprising a sealing plug, said plug carrying at least one a first retaining means adapted to cooperate with said control tube or with a wall of said duct so as to prevent the insertion of said plug into said socket characterized in that said plug further carries at least one second retaining means for prevent extraction of said plug from said plug, actuated by a locking device.
• At least one second retaining means deploys during its locking inside said duct. This makes it possible to guarantee the impossibility of extracting the plug from the socket in the absence of the key, even if it is damaged.
• said at least one first retaining means is adapted to deviate from the axis of the plug to position laterally with respect to the control tube and adapted to approach said tube under the action a locking device so as to, in the locking position, radially block said plug with respect to said control tube.
• control tube carries at least one piece with which said at least one first retaining means cooperates.
• This second embodiment allows, in addition to the prohibition of the depression of the plug, to prevent the rotation of the control tube by blocking a part which is attached thereto laterally.
• said insert on said control tube forms at least one stud protruding from said tube and wherein at least one first retaining means bears on said at least one stud.
• This configuration is used for upgrading existing fire posts, after drilling the control tube from the stake in question and insertion of a bar calibrated in length or implantation of a nipple-shaped buffer.
• At least a first retaining means is able to deviate from the axis of the plug to position laterally with respect to the control tube and is adapted to approach said tube under the action of a locking device so as to, in locked position, block in rotation in both directions said at least one insert.
• said at least one first retaining means is a ring-shaped pallet in which at least one stud carried by said insert engages.
• said at least one first retaining means is a pallet having the form of a hollow cone in which engages at least one stud carried by said insert.
• said stopper has the shape of a hollow cylinder in its upper part so as to form two lateral appendages separated from each other by a recessed portion whose bottom constitutes the first restraining means.
• This shape makes it possible to grip the control tube so as to ensure the centering of the plug and, incidentally, to prevent its rotation about the axis of symmetry of the cylinder.
• said plug is able to fit completely into the socket so as not to interfere with the placement of a cover on the hooking device of the cylindrical portion of said plug.
• This configuration facilitates the installation of the invention for upgrading existing fire posts.
• FIG. 1 is a sectional view of a fire hydrant (la) and a fire hydrant (Ib) according to the prior art;
• FIG. 2 is a schematic sectional view of a plug for a fire hydrant according to a first embodiment of the invention, in the locked position
• - Figure 3 is a schematic perspective view of a plug for a fire hydrant, according to a first embodiment of the invention, in the unlocked position;
• FIG. 4 is a schematic perspective view of a plug for a fire hydrant, according to a second embodiment of the invention, in the unlocked position;
• FIGS 5 and 6 are sectional front and side views of a plug for a fire hydrant according to a third embodiment of the invention;
• FIG. 7 is a sectional sectional view of a plug according to the third embodiment, being introduced into the socket.
• a fire hydrant comprising a body 1 enclosed for its upper part in a cowling 2.
• This body is formed essentially of a substantially vertical pipe 3 of which a first portion, in the case of fire hydrant is buried in the ground and a second part above ground.
• This pipe carries in it a control tube 4, the upper end of which has the shape of a maneuvering nozzle 5 on which a fixed or removable control handle 6 is engaged.
• the control tube carries a valve 7 making valve for the release of water from the main supply network.
• the pipe 3 is fixed at its lower part on the water supply pipe coming from the main network and forms, at the level of the valve 7, a seat for the seal of the latter.
• At the top of the pipe 3 leads to one or more outlets 8 (usually three for a fire hydrant, one for a mouth) on which are connected the fire hose.
• the outlets have a cylindrical portion 10 deviating, in the case of a fire hydrant, substantially radially from the pipe 3 and terminate in an attachment device for a cap 9 which seals when the taken is not used.
• FIG. Ib the situation is similar for the fire hydrant, the same references designating the same elements.
• a plug 9 for a fire hydrant according to a first embodiment of the invention comprising a cover 11 adapted to be fixed on the attachment device of the cylindrical portion 10 of the socket 8.
• This cap carries a set of elements intended to penetrate inside the socket 8 so as to prevent its tearing or its depression.
• a locking device 12 such as a lock actuated by a key (not shown) which controls bolts 13 may in the first place to deviate from the axis of the plug to prevent the removal of the plug and secondly to retract inside said cap to release of the catch.
• the support 14 is made in two parts 14a and 14b. These two parts 14a and 14b carry two pallets 15a and 15b which can deviate from the axis of the plug once they have penetrated inside the pipe 3; they can then, once the plug 9 has been put in place, be brought back towards one another, under the action for example of the key of the locking device 12, so as to grip the control tube 4
• the shape of these two vanes 15a and 15b is such that they can, once closed, trap the control tube between them and even, if the support is strong enough, prevent the rotation thereof.
• the bolts 13 are useless (or maintained as redundancy) since the vanes 15a and 15b prevent, by themselves, both the extraction of the plug and its expulsion inside the pipe 3.
• the cap also has a lock, equipped if necessary with bolts 13 (not shown in Figure 4) as in the first embodiment, for the purpose of preventing the extraction of the plug.
• the control tube 4 is pierced radially by a bar 16, two pins 16a and 16b protrude inside the pipe 3.
• the support 14 is made in two parts 14a and 14b ending in pallets 15a and 15b likely to bear on the nipples 16a and 16b so as to prevent rotation of the control tube 4 when the plug is in place.
• the parts 14a and 14b can deviate from the axis of the plug once they have penetrated inside the pipe 3 ; they can then, once the cap 9 has been put in place, be brought back to one another, under the action of the key of the lock 12, for example to imprison the two pins 16a and 16b .
• the pallets 15a and 15b have a shape adapted to the imprisonment of the nipples, such as that of a hollow ring or cone.
• the bolts 13 are useless (or maintained as redundancy), their function of preventing the extraction of the plug being already provided by the pallets 15a and 15b.
• This mode is particularly suitable for upgrading existing installations since it only requires tapping the control tube and setting a buffer on it, and that it does not provide for modification of the catch.
• the attachment of the buffer is shown in the figure by means of a screwing but could equally well be by clipping or gluing.
• the plug 9 has a cylindrical shape whose upper part is recessed to form two lateral appendices 17 separated from each other by a recessed portion whose bottom constitutes the pallet 15 intended to rest on the control tube 4 and to prevent the plug from sinking into the socket.
• the two appendices 17 have the function of clamping the control tube 4 so as to ensure the centering of the plug and, secondarily, to prevent its rotation about the axis of symmetry of the cylinder.
• the bolt 13 On the cylindrical portion of the plug which is disposed on the side of the end opposite the appendages 17 is the bolt 13 which is actuated by a lock 12 accessible from the underside of the plug that is to say the face opposite the hollow part. On this same face also includes a device 18 for extracting the plug from the socket.
• the bolt 13 is positioned on the cylinder at a distance from the lower face such that after insertion of the plug into the socket 8 and bearing on the control tube 4 of the bottom 15 of the recessed portion, it is located inside the pipe 3 and that it can be maneuvered to bear on the inner face of the pipe and thus block the extraction of the plug of the catch.
• the control tube 4 carries a pin 16c in the form of a buffer extending substantially vertically along the control tube and positioned vis-à-vis the plug 9. It is fixed on the control tube by a fastening means such as a screw engaging in a tapped hole in the tube and is positioned on the tube at a height such that when the plug 9 is put in place, its lower part comes stand just above the 16c nipple.
• a fastening means such as a screw engaging in a tapped hole in the tube and is positioned on the tube at a height such that when the plug 9 is put in place, its lower part comes stand just above the 16c nipple.
• the cap does not carry a lid as in the previous configurations. But as it integrates entirely inside the water intake 8, it is possible to reuse the lid 11 current hydrants to ensure the protection of the plug against external aggression.
• the introduction of a plug is done in a completely conventional manner with the introduction of the pallet 15, the support 14 and the lock 12 inside the cylindrical portion 10 of the plug 8. Once that the lid 11 of the cap comes against the cylindrical portion 10, it is fixed in a known manner such as for example by a rotation which creates the necessary support on the cylindrical portion to ensure the sealing of the cap.
• the lock 12 is then actuated by the key which deploys the bolts 13 inside the pipe 3 and thus prevents the removal of the plug from the socket.
• the thief tries to unscrew the cap to gain access to the water.
• the bolt 13 does not exist (or exists to provide redundancy) and the two parts of the support 14 are movable laterally.
• the two parts 14a and 14b are first tightened to enter the cylindrical portion 10 of the socket 8.
• these pallets differ, for example under the action of a spring or by a particular action on the key, so as to leave the control tube 4 and, in the second embodiment, the pins 16a and 16b, pass between them.
• the locking action by the key of the lock 12 triggers the bringing together of the parts 14a and 14b and, as a result, the imprisonment by the vanes 15a and 15b, of the control tube 4 in the first mode and the pins 16a and 16b in the second mode.

Landscapes

• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Hydrology & Water Resources (AREA)
• Public Health (AREA)
• Water Supply & Treatment (AREA)
• Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
• Quick-Acting Or Multi-Walled Pipe Joints (AREA)
• Valve Housings (AREA)
• Rigid Pipes And Flexible Pipes (AREA)
• Installation Of Indoor Wiring (AREA)
• Mutual Connection Of Rods And Tubes (AREA)

Applications Claiming Priority (2)

Publications (2)

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Family Applications (1)

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Family Cites Families (10)

• 2007
  • 2007-01-26 FR FR0752898A patent/FR2911889B1/fr not_active Expired - Fee Related
• 2008
  • 2008-01-09 WO PCT/FR2008/050042 patent/WO2008099103A2/fr active Application Filing
  • 2008-01-09 EP EP20080761916 patent/EP2109702B1/de not_active Not-in-force
  • 2008-01-09 CA CA 2676272 patent/CA2676272C/fr not_active Expired - Fee Related
  • 2008-01-09 AT AT08761916T patent/ATE500389T1/de not_active IP Right Cessation
  • 2008-01-09 AU AU2008214493A patent/AU2008214493B2/en not_active Ceased
  • 2008-01-09 US US12/524,635 patent/US8276608B2/en not_active Expired - Fee Related
  • 2008-01-09 DE DE200860005265 patent/DE602008005265D1/de active Active

Non-Patent Citations (1)

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