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
  • E03B9/04—Column hydrants
  • E03B9/06—Covers
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K35/00—Means to prevent accidental or unauthorised actuation
  • F16K35/06—Means to prevent accidental or unauthorised actuation using a removable actuating or locking member, e.g. a key
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K35/00—Means to prevent accidental or unauthorised actuation
  • F16K35/16—Means to prevent accidental or unauthorised actuation with locking member actuated by magnet

Definitions

• the invention relates to an ultimate maneuvering device for secure hydrant and a secure hydrant comprising such a device.
• hydrants Water supply terminals, such as fire hydrants, wash outlets, fire hydrants, dry or wet columns, are collectively referred to as hydrants.
• the hydrants are provided with securing devices, consisting essentially of a cap carrying a retaining means, such as a bolt, actuated by a mechanical or electronic lock.
• a retaining means such as a bolt
• This lock makes the hydrant inaccessible to third parties, but it must not prevent firefighters from intervening, even if they do not have the key.
• An object of the invention is to provide an ultimate maneuvering device for secure hydrant that allows to remove the hydrant security plug even in the absence of the key or in case of non-operation of the key or in the absence of a cap unlocking element which has been locked by the use of another retaining means, or in case of non-operation of this unlocking element.
• the subject of the invention is an ultimate maneuvering device, for hydrants comprising a securing plug, characterized in that the device comprises:
• the security cap may include a lock or other cap retaining means which requires, for its unlocking, an unlocking element.
• the contact zone and the ultimate key are magnetized.
• the contact area takes the form of a receptacle disposed in the security cap.
• the ultimate key is able to be screwed into the receptacle.
• This fastening / hooking means is particularly simple to install on the cap and to use.
• the receptacle is a blind hole having an internal thread and the ultimate key comprises an external thread compatible with the internal thread of the receptacle.
• the internal thread of the receptacle and the external thread of the ultimate key are both not inverted.
• the receptacle comprises, at the bottom of the blind hole, at least one magnet, and the ultimate key comprises, on its front face, at least one magnet, said magnets being able to cooperate to ensure their mutual attraction.
• the magnets are arranged in a circle at the bottom of the blind hole and on the front face of the ultimate key.
• the receptacle comprises a movable cylinder, retained in position close to the opening of the blind hole by a spring, and which masks the internal thread of the receptacle.
• the bottom of the blind hole is secured to a central shaft guided by a support tube, fixed relative to the plug.
• the tube has a helical groove in which a key integral with the central shaft moves.
• the helical groove has at its front end an axial portion directed rearward, and a spring pushes the central shaft and the key in said axial portion.
• a magnet is attached to the tube to hold the key in a stable position, in the absence of an ultimate key, in said axial portion.
• the presentation to the receptacle of the ultimate key causes, by the mutual attraction of the magnets, the forward displacement of the central shaft and the output of the key of said axial portion.
• the receptacle comprises a wall pierced with a hole for insertion by the front face of the wall and a movable structure disposed on the side of the rear face of the wall and connected thereto, the mobile structure comprising a so-called before which is engaged in the hole by the rear face to block access to said hole by the front face, the movable structure being able to move backward away from the wall, while remaining connected to the wall, in order to release access to the hole by the front face by cooperation of said mobile structure with the ultimate key inserted into the hole, the mobile structure and the ultimate key each comprising magnetic coupling means which are complementary to one of the other in order to join together said structure and said key with a view to their cooperation;
• the magnetic coupling means of the movable structure are disposed in the front portion thereof and concealed vis-à-vis the front face of the wall;
• the ultimate key is provided with an external thread for cooperating with an internal thread of the hole which is inaccessible by the front face of the wall when the front portion of the movable structure is engaged in the hole;
• the ultimate key is provided with at least one retractable retaining member which is intended to fit into a complementary housing provided at the periphery of the hole to axially secure the key and wall of the receptacle, said housing being inaccessible by the face. before the wall when the front part of the movable structure is engaged in the hole;
• the ultimate key magnetically coupled to the movable structure is adapted to be rotated about its longitudinal axis to cause the rotation of the movable structure and its rear longitudinal movement, thereby releasing access to the hole by the front face of the wall;
• the movable structure comprises a thread for cooperating with a thread connected to the wall to allow rotation and rearward longitudinal movement of said movable structure by cooperation between them two threads;
• the receptacle comprises a wall pierced with a hole for insertion by the front face of the wall of the ultimate key, the key being provided at its opposite end to the head with at least one anchoring member which is capable of unfolding radially with respect to the longitudinal axis of the key after insertion of said key into the hole, thereby preventing axial removal thereof;
• said at least one anchoring member is able to deploy radially and automatically after passing through the hole
• said at least one anchoring member is able to deploy radially after passing through the hole by cooperation with a deployment aid element
• the hole opens on the side of the rear face of the wall on a cavity
• the deployment aid element is fixed to the bottom of the cavity
• said at least one anchoring member and at least one wall of the cavity are equipped with complementary magnetic coupling means in order to exert a force of attraction between them;
• the ultimate key is provided with an external thread and the hole is provided with a complementary internal thread.
• the invention also relates to a hydrant comprising a safety cap and which comprises an ultimate operating device as briefly described above.
• the hydrant comprises a pipe, a control tube provided at one end with a maneuvering end and at the other end of a valve which is adapted to allow the supply of water to the pipeline from the main network, at least one plug connected to the pipe and which is adapted to receive fire extinguishing pipes, said socket comprising a securing device which comprises the securing plug, the securing device carrying at least a first retaining means for preventing extraction of the plug from securing and which is actuated by a locking device;
• said at least one first retaining means is able to move when it is locked inside the pipe
• said at least one first retaining means comprises a lock provided with a bolt
• the security plug is adapted to be inserted at least partially in the socket
• the security plug comprises a sealing cover
• the sealing cover is secured to the security plug which is partially inserted into the socket;
• the sealing cover is removable and the security plug is adapted to be fully inserted into the socket so as not to interfere with the establishment of the cover on the hooking device of the socket;
• the securing device carries at least a second retaining means which is adapted to cooperate with the control tube or with a wall of the pipe so as to prohibit the depression of the security plug in the socket;
• control tube carries at least one piece with which said securing device cooperates to prevent the movement of the control tube;
• the insert on the control tube forms at least one stud protruding from said tube and said at least one second retaining means bears on said at least one stud;
• said at least one second retaining means is able to deviate from the axis of the securing plug so as to position itself laterally with respect to the control tube and able to approach said tube on the action of the locking device so as to, in locked position, block in rotation in both directions said at least one insert.
• said at least one second retaining means is a ring-shaped pallet in which at least one stud carried by said at least one insert engages;
• said at least one second retaining means is a pallet in the form of a hollow cone in which at least one stud carried by said at least one insert is engaged;
• the security plug has the shape of a cylinder recessed in its upper part so as to form two side appendages separated from one another by a recessed portion whose bottom is the second retaining means;
• said at least one second retaining means is able to deviate from the axis of the securing plug so as to position itself laterally with respect to the control tube and able to approach said tube under the action of the locking device in such a way as to in the locked position, radially block said plug relative to the control tube.
• FIGS. 1a and 1b are respective sectional views of a fire hydrant and a fire hydrant
• FIG. 2 is an exploded perspective view of a structure for protecting a hydrant against theft of water, equipped with a keyed security plug, the plug being equipped with a receptacle for a device ultimate maneuver according to one embodiment of the invention;
• FIG. 3 is a perspective view of the key of an ultimate maneuvering device according to one embodiment of the invention.
• FIG. 4 is a front view of a receptacle of the ultimate operating device according to one embodiment of the invention.
• FIG. 5 is an axial sectional view of the receptacle of Figure 4.
• FIG. 6 is a perspective view of another embodiment of the ultimate maneuvering device according to the invention.
• FIG. 7 is a side view of the ultimate operating device of FIG. 6,
• FIGS. 8a and 8b are views respectively illustrating in section and in perspective a fire hydrant incorporating an ultimate maneuvering device according to one embodiment of the invention
• FIGS. 9a-c, 10a-b, 11a-b, 12a-b, 13a-b, 14a-c and 15a-c illustrate ultimate maneuvering devices according to alternative embodiments of the invention
• FIG. 16 is a schematic sectional view of a cap for a hydrant according to one embodiment of the invention, in the locked position;
• FIG. 17 is a schematic perspective view of a cap for a hydrant, according to one embodiment of the invention, in the unlocked position;
• FIG. 18 is a schematic perspective view of a cap for hydrant, according to another embodiment of the invention, in the unlocked position;
• FIG. 19 and 20 are sectional front and side views of a plug for a fire hydrant according to yet another embodiment of the invention.
• FIG. 21 is a sectional sectional view of a plug according to the embodiment of Figures 19 and 20, being introduced into the socket;
• FIG. 22 is a view from above of a plug for securing a fire hydrant, provided with a receptacle for an ultimate maneuvering device according to the invention
• FIG. 23 is a top view of a securing plug of a washing mouth, provided with the receptacle of an ultimate maneuvering device according to one embodiment of the invention.
• a fire hydrant (or 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, a first portion of which in the case of the fire hydrant, is buried in the ground and a second part above ground.
• This duct carries in it a control tube 4 whose upper end has the shape of a male maneuvering tip 5 on which is entrenched a fixed or removable control handle 6.
• the tube or control rod 4 carries a valve 7 forming 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.
• the pipe 3 leads to one or more outlets 8 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.
• the protective structure (safety device) of a hydrant of the fire hydrant type consists of a body 11 inserted into a socket 8 of FIG. 1a of the fire hydrant.
• the body 11 receives a plug 12 slid inside the body 11 and secured to the body 11 for example by the screws 13 (other securing means are however possible: bonding ).
• the plug 12 comprises a retaining means for preventing the extraction of the hydrant cap such that, in a known manner, a lock 14 provided with a bolt 15.
• the lock 14 is locked on the plug by means of a nut 16.
• the invention provides an ultimate operating device, that is to say the maneuver force of the securing device (11,12), by deformation of the bolt 15 or breakage of the bolt 15.
• the plug 12 is equipped with a contact zone which takes for example the form of a receptacle 18 intended to receive an ultimate key 19 (the key will be fixed / secured to the contact zone), the assembly of the receptacle 18 and the ultimate key 19 constituting an ultimate maneuvering device.
• the receptacle 18 has an internal thread and the ultimate key 19 has a corresponding external thread.
• the threads are not conventional threads, and are preferably inverted threads.
• the end face of the ultimate key 19 comprises at least one magnet 21 ( Figure 3) and the bottom of the receptacle 18 comprises at least one magnet 22 ( Figures 4, 5).
• the or the magnet (s) of the ultimate key 19 and the or the magnet (s) of the receptacle have opposite polarities so as to ensure reinforced solidarity between the key 19 and the receptacle 18 after screwing the key 19 in the receptacle 18. It is provided that magnets are designated either permanent magnets or ferromagnetic elements.
• the magnets can be placed in a particular arrangement, for example in line or in a circle, both at the bottom of the blind hole and on the front face of the ultimate key.
• the head 23 of the ultimate key 19 is wide and is in the form of ring to be driven in force to tear the security device 11,12 of the hydrant.
• the receptacle 18 consists essentially of a cylindrical blind hole equipped with an internal thread and, at the bottom, at least one magnet 22.
• a movable cylinder 24 held in position close to the opening of the receptacle 18 by an internal spring 25 of the receptacle 18.
• the spring 25 is compressed in an annular housing surrounding the bottom of the receptacle 18.
• the cylinder 24 is secured to the receptacle 18 by means of the spring 25 which connects them to one another.
• the cylinder 24 makes it possible to make the internal thread of the receptacle 18 visible and accessible only when the ultimate key 19 is inserted.
• the cylinder 24 returns to its initial deployed position under the effect of the spring 25.
• the body 11 comprises a retaining means which is adapted to prevent the depression of the control tube 4 by cooperation with the latter.
• the end of the body 11 opposite to that carrying the plug 12 has the general shape of a fork having two arms 11a, 11b or lateral appendages which are separated from each other by a recessed portion whose bottom 11c constitutes said retaining means.
• the bottom of the receptacle is not fixed, and it is capable of being displaced in rotation with respect to its axis and in axial translation, when the insertion of the ultimate key 19.
• the bottom of the receptacle 18 is secured to a central shaft 26 guided by a support tube 27, which is fixed relative to the plug 12.
• the tube 27 has a helical groove 28 in which moves a key 29 integral with the central shaft 26.
• the groove 28 has at its front end, an axial portion 30 and directed rearwardly.
• a spring (not shown) pushes the central shaft 26 back and the key 29 in the axial portion 30 housing.
• the central shaft 26 can not be moved in rotation, which prevents the opening of the plug 12.
• FIGS. 8a and 8b illustrate a hydrant 40 and the implantation of the removable security device 11, 12 of the maneuvering device of the preceding figures within a main outlet 42 of the hydrant.
• a blocking member (abutment) 46 is schematically shown on the rod 4, under the device 11, 12, so as to abut against it in case of unauthorized attempt to raise the rod.
• FIG. 8b the ultimate key 19 of the operating device is shown attached to the device 11, 12.
• the ultimate key 19 is equipped at its end with an external thread but may not be provided in the case of other possible variants. These different mechanical variants can also be provided with optional magnets.
• the magnetization is represented by the various magnetic modules 21 positioned in the middle of the end face.
• the external mechanical thread no longer exists on this ultimate key variant and the magnetization is represented by the outer ring 51a and the associated central cylinder 51b.
• the thread is replaced by a groove 52 which is intended to cooperate with a shape complementary to the contact zone (receptacle) of the security plug.
• the ultimate key 19 can be used with or without magnets, with a thread or with any other anchoring device such as one of those shown in Figures 10a to 13b.
• the ultimate key 60 is inserted into the hole 62 of the wall 63 of the dedicated receptacle for this purpose to be fully integrated in the associated cavity 64 (receptacle) whose wall 63 forms the front wall.
• the ultimate key is equipped with a mobile tail unit 66 (deployable anchoring members) which, once introduced into the closed cavity 64, opens automatically and makes it impossible to extract this empennage, thus allowing the ultimate key to fulfill its function: to secure the two elements for a strong extraction.
• This type of ultimate key may or may not have a thread (thread 60a in FIG. 10b). This threading also complicates the duplication of keys by fraudsters.
• the ultimate key 70 is provided with an inverted empennage 72 which deviates as the key is introduced into the cavity 74.
• the empennage is separated by the presence of a rod 76 (deployment aid element) judiciously positioned in the bottom wall 74a of the cavity and which allows the opening of the empennage.
• the mobile empennage 72 opens in contact with the rod 76.
• the rod is provided with a thread which cooperates with a thread complementary to the empennage for the deployment of the latter.
• the empennage may be equipped with magnetized elements on its outer surface so that these magnetized elements are naturally attracted by complementary magnet elements which are disposed on or in the walls defining the cavity.
• thread 70a allows the reuse of the device several times.
• the cavity 74 being more congested than the cavity 64, the introduction of foreign elements by malicious people is made even more difficult.
• Figures 12a-b and 13a-b show other solutions for securing between the ultimate key and its base or support attachment (contact area / receptacle).
• FIG. 12a shows the end key 80 equipped at its end with an expansion plug member 82.
• the axial insertion of the ultimate key into the blind hole 84 allows the fins 86 (anchoring members) to be spread radially apart. in the cavity 88. These fins, once deployed, can no longer return to their original position, thus securing the ultimate key of its base (receptacle) in its intended position for tearing force by traction on the key.
• an element 92 positioned in the cavity bottom 94 allows, by cooperation with the deployable portion 96 (anchoring members) equipping the end of the ultimate key 90, the opening of the fins 98 of this part.
• This ultimate key can be disposable or can be used several times thanks to the operation of the taper of the tail of the ultimate key that combines with the complementary thread of the element 92 positioned at the bottom of the cavity.
• FIGS. 14a-c illustrate another variant of hooking and securing of the ultimate key to the associated base which is close to the operation of FIGS. 6 and 7.
• the ultimate key 100 is equipped with a thread 100a.
• the blind hole 102 of the wall 104 on which the ultimate key 100 comes to grip is not accessible from the outside (front face of the wall) because no visible because of the presence of a front portion of a movable structure 120 engaged in the hole and in particular of its front face 120a ( Figure 14b).
• the only surface visible externally of this mobile structure is that of the front face 120a which is smooth and forms a cover so that no external equipment can come to join the said structure and hang on it.
• a support part 106 is fixed in the hole 102 and on the rear face of the wall 104 around said hole.
• This part comprises a double external thread 106a and internal 106b and an end wall 106c which is removed for mounting the mobile structure 120 and put back in place after (FIG 14a).
• the mobile structure 120 is equipped with a double internal thread 120b and external 120c.
• the internal thread 120b is arranged inside a cavity 120d while the external thread 120c is arranged on a front portion 120e forming axial extension.
• Magnets 120f are attached behind the front face 120a within the portion 120e.
• the mobile structure 120 is secured to the part 106 (and thus to the wall 104 base / receptacle) and therefore to the wall 104 via the complementary threads 106a and 120b, on the one hand, and 106b and 120c, on the other hand. on the other hand (Fig. 14b, waiting for an ultimate key 100).
• the structure moves in rotation and longitudinally in the blind hole but can not be separated from the base.
• the mobile structure 120 moves in the base by the presence of a helical groove 120g dedicated for this purpose and similar to the groove 28 of Figures 6 and 7.
• the movable structure is driven and rotates and moves longitudinally backwards, thus gradually releasing the opening of the hole and the internal thread 106b.
• the external thread 100a of the key can then cooperate fully with the internal threading 106b of the hole and hang mechanically thereon and the movable structure 120 continues its displacement (FIG 14c).
• the structure 120 is limited in its displacement by the presence of the rear wall 106c which forms a stop.
• the key thus secured and firmly anchored in the base or wall 104, can fulfill the function to which it is dedicated: extract the device (security cap).
• FIGS. 15a-c illustrate a variant of FIGS. 14a-c: the blind hole 132 is not equipped with an internal thread, likewise the movable structure 140 which moves in this blind hole is not equipped with a complementary external thread (Fig. 15a). The other elements of FIGS. 14a-c are repeated and retain the same references.
• the key 130 is equipped with at least two retractable lugs 134 (retaining members) which are for example located near the magnets 100b as illustrated in FIG. 15b.
• the smooth blind hole 132 of the wall 104 (pedestal / receptacle) is not accessible through the front face of the wall due to the front face 120a and no equipment can come hang on the visible face 120a of the mobile structure 140 (FIG 15b).
• the adapted key 130 is approximated: the magnets 100b of the key are positioned in front of those 120f located behind the face 120a smooth and visible externally of the mobile structure and magnetically mate with them.
• the rotation of the key in the blind hole is necessary to allow the longitudinal rearward movement of the structure 140 (secured to its base / wall) by cooperation of the complementary threads 106a and 120b.
• the rearwardly displaced structure thus releases the housings 136 of the hole dedicated to the insertion of the lugs 134 of the key and the key thus secured and anchored to the base can fulfill its function (position of FIG. 15c).
• Figures 14a-c and 15a-c may, alternatively, be housed in a cavity such as that of Figures 10a to 13b.
• the bottom wall of the cavity which faces the movable structure acts as an axial stop instead of the rear wall 106c which can then be omitted.
• FIGs 16 to 21 show the same elements as those of Figures 1a and 1b but their references are however preceded by the number "2" to distinguish this embodiment of the previous.
• a cap 209 for hydrant comprises a cover 211 adapted to be fixed on the hooking device of the cylindrical portion 210 of the plug 208.
• This cap carries a set of elements intended to penetrate inside the socket 208 so as to prohibit its tearing or penetration.
• a locking device 212 such as a lock actuated by a key (not shown) which controls bolts 213 may in the first place to deviate from the axis of the plug to prohibit the removing the plug (retaining means) and secondly retracting inside said plug to release it from the socket.
• These bolts are here positioned so that they deploy in a locked position inside the pipe 203.
• the plug 209 also carries beyond these bolts a support 214 extending towards the control tube 204 On this support is fixed a pallet 215 which comes substantially in abutment on the control tube 204 when the plug is locked on the plug 208.
• Figure 17 shows the same elements when the cap is unlocked and is being removed from the socket 208.
• the support 214 is made in two parts 214a and 214b. These two parts 214a and 214b carry two pallets 215a and 215b which can deviate from the axis of the plug once they have penetrated inside the pipe 203; they can then, once the plug 209 has been put in place, be brought back towards one another, under the action for example of the key of the locking device 212, so as to grip the control tube 204
• the shape of these two pallets 215a and 215b 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 213 are useless (or maintained as redundancy) since the pallets 215a and 215b prevent, by themselves, both the extraction of the plug and its expulsion inside the pipe 3.
• the cap also has a lock, equipped with bolts 213 if necessary (not shown in FIG. 18) as in the previous embodiment, in order to prevent the extraction of the cap.
• the control tube 204 is pierced radially by a bar 216, two pins 216a and 216b protrude inside the pipe 203.
• the support 214 is made in two parts 214a and 214b ending in pallets 215a and 215b capable of bearing on the pins 216a and 216b so as to prevent the rotation of the control tube 204 when the plug is in place.
• the parts 214a and 214b can deviate from the axis of the plug once they have penetrated inside the pipe. 203; they can then, once the stopper 209 has been put in place, be brought back towards one another, under the action for example of the key of the lock 212, so as to trap the two pins 216a and 216b .
• the pallets 215a and 215b have a shape adapted to the imprisonment of the nipples, such as that of a hollow ring or cone.
• the plug 209 has a cylindrical shape whose upper part is recessed to form two lateral appendices 217 separated from each other by a recessed portion whose bottom constitutes the pallet 215 intended to rest on the control tube 204 and to prevent the insertion of the plug into the socket (retaining means already described with reference to FIG. 2).
• the two appendices 217 have the function of enclosing the control tube 204 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 213 On the cylindrical portion of the plug which is disposed on the side of the end opposite the appendages 217 is the bolt 213 which is actuated by a retaining means such as a lock 212 accessible through the underside of the plug, that is, ie the opposite side to the recessed part.
• a retaining means such as a lock 212 accessible through the underside of the plug, that is, ie the opposite side to the recessed part.
• Another possible retaining means is for example a waste.
• On this same face also includes an extraction device 218 of the plug of the socket. It should be noted that the extraction can be performed by an ultimate maneuvering device as described above. The cap is then modified accordingly to cooperate with an ultimate key.
• the bolt 213 is positioned on the cylinder at a distance from the lower face such that after insertion of the stopper into the receptacle 208 and resting on the control tube 204 of the bottom 215 of the recessed portion, it is located at the inside of the pipe 203 and that it can be maneuvered to bear on the internal face of the pipe and thus block the extraction of the plug from the socket.
• the control tube 204 carries a stud 216c in the form of a buffer extending substantially vertically along the control tube and positioned opposite the plug.
• the cap does not carry a lid secured thereto as in the previous configurations.
• the lid 211 current hydrants to ensure the protection of the grip against external aggression.
• the bolt 213 does not exist (or exists to provide redundancy) and the two parts of the support 214 are movable laterally.
• the two parts 214a and 214b are first tightened to enter the cylindrical portion 210 of the plug 208.
• the pallets 215a and 215b have exceeded the inner wall of the pipe 203 these pallets deviate, for example under the action of a spring or by a particular action on the key or, more generally, on any appropriate equipment (complementary) so as to leave the control tube 204 and, in the embodiment of FIG. 18, the nipples 216a and 216b, to pass between them.
• the securing device is constituted by a cover 300 at the upper part of which is provided a recess 302 containing the retaining means such as the lock 14 mechanical or electronic.
• the receptacle 18 of the ultimate maneuvering device is provided to receive the ultimate key 19 under the same conditions as previously described.
• the ultimate maneuvering device described in this particular example comprises an ultimate key and a receptacle for this key, each equipped, on the one hand, with a particular thread, and, on the other hand (optional), with complementary magnets. to reinforce the mechanical connection between key and receptacle, and in the central shaft embodiment, to allow rotation of the central shaft and penetration of the ultimate key sufficient to ensure the withdrawal of the hydrant securing device .
• the key can be fixed / hooked to a contact area (ex: receptacle) of the security plug by other connecting means.
• the key and the contact area may be magnetized in a complementary manner to each other.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Hydrology & Water Resources (AREA)
• Public Health (AREA)
• Water Supply & Treatment (AREA)
• Mechanical Engineering (AREA)
• Preventing Unauthorised Actuation Of Valves (AREA)

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• 2012
  • 2012-09-26 FR FR1259057A patent/FR2995920B1/fr not_active Expired - Fee Related
• 2013
  • 2013-09-26 EP EP13785493.1A patent/EP2904157A1/de not_active Withdrawn
  • 2013-09-26 WO PCT/FR2013/052283 patent/WO2014049285A1/fr not_active Ceased

Non-Patent Citations (1)

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