FR3079284A1 - FLOOR LAMP COMPRISING A FEEDBACK ANTI-THEFT DEVICE AND METHOD FOR INSTALLING SUCH ANTI-THEFT DEVICE - Google Patents

Abstract

A lamp post comprising a lighting member, a hollow body comprising a lower end fixed to the ground and an upper end on which is mounted the lighting member and at least two power cables (130), extending into the hollow body, which are electrically connected to the lighting member, the lamp post further comprising a container (10) defining an interior cavity (I) filled with a hardened material forming an anti-theft device for the power cables ( 130), the container (10) being sealed and comprising a peripheral belt (11) and a bottom wall (2) comprising guide means configured to guide the container (10) in translation along the power cables (130). ) from a high mounting position to a low securing position.

Description

FLOOR LAMP COMPRISING AN ANTI-THEFT DEVICE FOR POWER SUPPLY CABLES AND METHOD FOR INSTALLING SUCH AN ANTI-THEFT DEVICE

GENERAL TECHNICAL AREA AND PRIOR ART

The present invention relates to the field of public lighting and more particularly relates to an anti-theft device for power cables of a lamppost.

Today, street lighting makes it possible to illuminate streets of the public highway using street lamps placed along a street in order to increase the safety and the comfort of the people circulating on this street. Each lamp post includes a lighting device supplied with electrical energy by an electrical distribution network in order to generate light.

As illustrated in FIG. 1, each lamppost 100 comprises a hollow body 110 extending vertically between a lower end and an upper end, and a lighting member 120 mounted at the upper end. A power cable 130 connects the lighting device 120 to the electrical network 140 in order to supply it with electrical energy. In practice, two successive lampposts 100 are connected in series by a power cable 130. Also, the hollow body 110 of each lamppost 100 makes it possible to house and protect two power cables 130, an incoming power cable and a cable. outgoing energy. In a known manner, the hollow body 110 comprises an access hatch 111 placed at breast height and allowing an operator to access the power cables 130 during a maintenance operation, for example to intervene on a cabinet. connection. Between the lampposts 100, the power cables 130 are buried in the ground, making them inaccessible. Only the ends of each power cable 130 go up to a lamppost 100 where they are electrically connected to each other and / or to the lighting element 120 of the lamppost 100.

In known manner, a power cable 130 is made of copper and has a high cost. Given the value of the power cables 130, thefts have been carried out by accessing the power cables 130 by the access hatch 111. During the flight, the power cables 130 are cut at each lamppost 100 then each power cable 130 is pulled at one of its ends in order to remove it from the ground. Each lamppost 100 is then no longer supplied with electrical energy and the lighting member 120 can no longer emit light, which has a significant drawback. In addition, due to the series connection of the lampposts 100, the theft of a single supply cable 130 can cause the supply of electrical energy to a large number of lampposts 100 to be cut.

Also known from document ES 1077563 U is an anti-theft device for cables from a lamppost. Such a device is mounted in the body of a lamppost and has a hollow cylindrical shape so as to allow the passage of cables. Mortar is placed inside the device to secure the cables and the device. This increases the effort required to pull the cable. However, such a device has drawbacks. In fact, the power cables are always accessible from the access hatch and can be cut at the anti-theft device in order to be separated. Such an anti-theft device must be put in place when mounting a new street lamp on the street in order to pass the power cables through the hollow cylindrical shape. Such an anti-theft device is not applicable to existing lampposts.

There is therefore a need for an anti-theft device making it possible to effectively and inexpensively protect the power cables of street lamps against theft.

GENERAL PRESENTATION OF THE INVENTION

To this end, the invention relates to a lamppost comprising a lighting member, a hollow body comprising a lower end fixed to the ground and an upper end on which the lighting member is mounted and at least two power cables, extending in the hollow body, which are electrically connected to the lighting member, the lamppost further comprising a container defining an interior cavity filled with a hardened material forming an anti-theft device for the power cables.

The invention is remarkable in that the container is waterproof and includes a peripheral belt and a bottom wall comprising guide means configured to guide the container in translation along the supply cables from a high mounting position to a low fixing position.

Thanks to the invention, the container can be mounted on power cables of an existing lamppost and then moved to a low position stably with its guide means. In the low position, the sealed container can be filled with hardening material in order to be able to secure the power cables during its hardening. Advantageously, the power cables are secured together in a low position in the hollow body. Thus, a thief cannot cut the power cables below the container filled with hardener material and cannot remove the power cables located under the lamppost.

Preferably, the peripheral belt of the container comprises several parts assembled together so as to allow an operator to surround the power cables in a practical manner. Preferably, the peripheral belt of the container consists of a first part and a second part which are assembled together. According to a preferred aspect, the first part and the second part are identical, which makes it possible to reduce the cost of the peripheral belt.

According to one aspect of the invention, the guide means comprise at least two mounting openings, each mounting opening cooperating with the outer surface of a power cable. Preferably, the guidance is carried out in a sealed manner. Preferably, the guide means are elastic in order to be able to adapt to several diameters of power cables.

Preferably, the bottom wall is in the form of a removable sealing member of the peripheral belt, the sealing member being mounted between the container and said power cables. Advantageously, a removable sealing member makes it possible to adapt to different diameters of power cables or to a different number of power cables.

Preferably, the sealing member is in the form of a clamp comprising two jaws configured to close resiliently. Thus, the sealing member can be conveniently mounted by elastic pinching on the power cables. The risk of loss of the sealing member during assembly is thus reduced.

Preferably, the peripheral belt comprises blocking members configured to block the translation of the sealing member. Thus, the sealing member can be easily moved during the movement of the container thanks to the locking members. Preferably, each part of the peripheral belt includes locking members. Such locking members make it possible to position in a practical and stable manner each part of the peripheral belt during assembly, in particular, the first part of the peripheral belt. Such blocking members also make it possible to participate in the movement of the sealing member during the vertical movement of the peripheral belt by an operator.

Preferably, the lamppost has a longitudinally extending injection pipe comprising a first end connected to the container and opening into the interior cavity. Such an injection pipe makes it possible to fill the container remotely. Thus, the operator can be located in the high mounting position while the container is in the low fixing position.

Preferably, the peripheral belt comprises at least one fixing member, preferably by pinching, of the first end of said injection pipe. Thus, the injection pipe is held stably when the container is moved to its low position.

The invention also relates to a method of installing a lamppost as presented above, the method comprising:

- a step of mounting the container around a longitudinal portion of the lamppost supply cables in a high mounting position,

a step of translating the container along the supply cables to a low securing position, and

- A step of injecting a hardener material into the interior cavity of the container so as to secure the power cables in the low position of fastening.

Thanks to the invention, the container can be conveniently and ergonomically mounted in the high mounting position and then slide stably in the low securing position to prevent withdrawal of the power cables.

Preferably, the bottom wall is mounted on the power cables and then the peripheral belt is positioned on the bottom wall. More preferably still, the peripheral belt consisting of two parts, a first part is positioned on the bottom wall and then the second part is positioned on the bottom wall and secured to the first part.

Preferably, the lamppost comprising an access to the interior of the hollow body, the container is mounted by access to the high mounting position. Installation is convenient and can be done during a routine maintenance installation.

More preferably, the high mounting position and the low securing position are separated by a distance at least equal to 50 cm. It is thus difficult for a thief to cut the cables at the low fixing position from the high mounting position.

PRESENTATION OF THE FIGURES

The invention will be better understood on reading the description which follows, given solely by way of example, and referring to the appended drawings in which:

- Figure 1 is a schematic representation of a street along which are placed street lamps according to the prior art,

- Figure 2 is a schematic representation of an embodiment of a container according to an embodiment of the invention connecting two cables,

FIG. 3 is a schematic perspective representation of the container of FIG. 2, the peripheral belt of which is open,

- Figure 4 is a schematic perspective representation of part of the peripheral belt associated with an injection pipe,

FIG. 5 is a schematic representation from above of the peripheral belt of the container,

FIG. 6 is a schematic representation of a sealing member of the container, FIG. 7 is a perspective representation of the container associated with an injection pipe and

Figures 8 to 14 are schematic representations of the steps for installing an anti-theft device according to the invention.

It should be noted that the figures show the invention in detail to implement the invention, said figures can of course be used to better define the invention if necessary.

DESCRIPTION OF ONE OR MORE MODES OF IMPLEMENTATION AND IMPLEMENTATION

Referring to Figure 1 already presented above, it is shown schematically street lamps 100 placed along a street to illuminate it. Each lamppost 100 comprises a hollow body 110 extending vertically from the ground S between a lower end and an upper end. Each lamppost 100 includes a lighting member 120 mounted at the upper end of the hollow body 110.

The lighting member 120 is electrically connected to a source of electrical energy supply, preferably a distribution network 140, by a supply cable 130. As illustrated in FIG. 1, the lampposts 100 are connected in series to the distribution network 140. Also, the streetlights 100 are connected two by two by a power cable 130. In other words, for streetlights 100 placed successively from upstream to downstream along a street, each streetlight 100 is connected by a first power cable 130 to a lamp post 100 placed upstream and by a second power cable 130 to a lamp post placed downstream. A lamppost 100 is connected by a power cable 130 to the distribution network 140 located upstream of this lamppost 100 so that all the lampposts are connected in series to the distribution network 140. Also, the hollow body 110 of each lamppost 100 allows to protect two power cables 130, an incoming energy cable and an outgoing energy cable. Each power cable 130 has an outside diameter which can vary, in particular, between 10mm and 32mm. Preferably, each power cable 130 comprises one or more copper wires. In the following description, there is shown a lamp 100 comprising two power cables 130. However, it goes without saying that the lamp 100 could include more than two power cables 130.

As previously presented, the lamppost 100 includes an access, in particular an access hatch 111, allowing access to the interior of the hollow body 110 in order to access the power cables 130. The access hatch 111 is placed in height with respect to the ground S at a high position P1, which will be designated subsequently, high mounting position P1 (see figure

8). For example, the high mounting position P1 is located between 50cm and 70cm from the ground. The structure of such a lamp 100 being known, it will not be described in more detail.

Referring to Figures 2 to 7, the lamppost 100 further comprising a sealed container defining an interior cavity I filled with a hardened material 9 forming an anti-theft device for the power cables 130. The sealed container 10 comprises a peripheral belt and a bottom wall comprising guide means configured to guide the sealed container 10 in translation along the supply cables 130 from a high mounting position P1 to a low fixing position P2.

Thanks to the invention, the sealed container 10 can be moved away from the access hatch 111 so as to avoid any section of the power cable 130 under the sealed container

10. Thus, if a supply cable 130 is cut above the sealed container 10, the latter cannot be pulled by the access hatch 111 and cannot therefore be stolen, the latter remaining trapped in floor.

The sealed container 10 is mounted on the supply cables 130 and makes it possible to form an internal cavity I into which the hardener material is injected.

Referring to Figures 2 to 6, the sealed container 10 comprises a peripheral belt 11 and a bottom wall so as to close the underside of the sealed container 10. The upper face of the sealed container 10 remains open so as to allow injection of hardener material via the upper side.

In this embodiment, the peripheral belt 11 and the bottom wall are removable in order to facilitate mounting and allow adaptation to different types of power cables 130.

In this example, the peripheral belt 11 consists of a first part 4 and a second part 4 'configured to fit together around the power cables 130. This makes it possible to mount the peripheral belt 11 around cables d supply 130 of an existing lamppost 100 as will be presented later. Advantageously, the first part 4 and the second part 4 ’are made of plastic, in particular by injection. In this example, the first part 4 and the second part 4 'are identical, which makes it possible to limit the number of different elements and therefore the costs. Advantageously, a single mold is necessary to manufacture the two parts 4, 4 ’. With reference now to FIG. 4, for the sake of clarity and conciseness, only the first part 4 of the peripheral belt 11 will be described.

The first part 4 has the shape of a half-shell comprising a domed envelope 40 comprising a first lateral edge 41 and a second lateral edge 42 respectively comprising first connection means 43 and second connection means 44. The first connection means 43 and the second connection means 44 are configured to cooperate by interlocking, in particular, by complementarity of shapes, for example, by clipping. Thus, it suffices to fit the parts 4, 4 ′ around the supply cables 130 to form the peripheral belt 11. In this example, the first connection means 43 are in the form of pins while the second means of connection 44 are in the form of slots.

Still with reference to FIG. 4, the first part 4 comprises means 45 for receiving the bottom wall, in particular, for a sealing member 20 as will be presented below. The receiving means 45 are located in the lower part of the first part 4 so as to reserve a volume for the hardener material. The receiving means 45 are in the form of a lower blocking member 46 and an upper blocking member 47 which are vertically offset so as to block a vertical translation of the sealing member 20 relative to each part 4, 4 'of the peripheral belt 11. In this example, each locking member 46, 47 is made from material of the casing 40 and has cutouts 48 so as to allow the passage of the power cables 130 like this will be presented later.

Referring to Figures 4 and 5, the first part 4 has at its upper edge a fixing member 49 adapted to fix an injection pipe 30 as will be presented later. The fixing member 49 has a slit opening so as to provide an elastic hold. The adapted diameter of the split opening is adapted to that of the diameter of the injection pipe 30.

Referring to Figure 2, the peripheral belt 11 has at least one flat 12 so as to allow an ergonomic grip by an operator, in particular, to move the sealed container 10 along the power cables.

In this embodiment, with reference to FIG. 3, the sealing member 20 forms the bottom wall of the sealed container 10 in order to form a cavity in which the hardening material is contained until it becomes rigid.

With reference to FIG. 3 and to FIG. 6, the sealing member 20 comprises mounting openings 23 for receiving respectively supply cables 130 in a sealed manner. Each mounting opening 23 is cylindrical to have a diameter corresponding to the outside diameter of the power cable 130. A sealing member 20 is shown in the figures comprising two mounting openings 23. However, it goes without saying that the number mounting openings 23 can vary depending on the number of power cables 130.

As illustrated in FIG. 6, the sealing member 20 has the shape of a clamp and comprises two jaws 20A, 20B which are articulated at the level of an articulation portion 21 so as to allow the jaws 20A to be separated, 20B and the mounting of the power cables 130 therebetween.

The sealing member 20 is made of an elastic material, in particular of EPDM foam, so that the mounting openings 23 can deform and provide a compression seal around the supply cables 130. Advantageously , such elasticity also makes it possible to adapt to variations in diameter of the power cables 130.

In practice, a set of sealing members 20 is used. Each sealing member 20 comprising identical external dimensions to cooperate with the parts 4, 4 ′ of the peripheral belt 11 but mounting openings 23 of different dimensions in order to adapt to different diameters of the power cables 130. This optimizes the tightness with the power cables 130. In addition, this allows the use of a single type of peripheral belt 11, which allows costs to be limited.

The mounting openings 23 of the sealing member 20 form the guide means of the sealed container 10 along the supply cables 130. However, according to an alternative embodiment, the guide means could be separate from the sealing member

20. The guide means could in particular be formed by the sealed container 10, and in particular by the locking members 46, 47.

In the mounted position, the sealing member 20 is blocked by the locking members 46, 47 of the parts 4, 4 ′ of the peripheral belt 11 as illustrated in FIG. 7. As will be presented below, the blocking 46, 47 also make it possible to move the sealing member 20 in a leaktight manner during the movement of the peripheral belt 11.

As indicated above, with reference to FIG. 7, a hardening material 9 is injected into the interior cavity I of the sealed container 10 in order to fix the power cables 130 between them. In this exemplary embodiment, the hardener material 9 is in the form of a resin, in particular a resin of the epoxy type with hardener. The resin is configured to harden in a few minutes, which makes it possible to inject it easily in the liquid state before it hardens while ensuring the connection of the power cables 130 once hardened. In other words, the sealed container 10 makes it possible to store the hardener material 9 in the liquid state around the power cables 130 while the latter hardens and solidifies them.

With reference to FIG. 7, the anti-theft device 1 also comprises an injection pipe 30 for injecting the hardening material 9 into the internal cavity I of the sealed container 10 from the outside of the lamppost 100, in particular via the hatch d access 111.

The injection pipe 30 extends longitudinally between a first end 31 mounted on the container 10 and opening into the internal cavity I and a second end 32 adapted to be connected to a tank of hardener material. Preferably, the tank is equipped with an injection system of the manual or motorized pump type in order to supply the injection pipe 30. Preferably, an injection gun is used.

According to an advantageous aspect, the injection pipe 30 is at least partially flexible so as to be able to be bent when its first end 31 is mounted on the sealed container 10 and when its second end 32 extends out of the lamppost 100 as illustrated in Figure 13. In addition, due to this flexibility, the injection pipe 30 can deform when the sealed container 10 is moved along the supply cables 130. Preferably, the length of the injection pipe 30 is between 50cm and 70cm. The diameter of the injection pipe 30 is between 8cm and 10cm.

As illustrated in FIG. 4, the first end 31 of the injection pipe 30 is fixed to a fixing member 49 of the container 10 so as to be integral with the container 10 when it slides along the supply cables 130.

The injection pipe 30 makes it possible to fill the container 10 in a practical manner when it is in the low securing position P2. Indeed, the hollow body 110 and the access hatch 111 have reduced dimensions, which makes it difficult to directly fill the container with a hardening material.

The method of installing an anti-theft device 1 according to the invention in an existing lamppost 100 will now be described with reference to FIGS. 8 to 14.

First of all, with reference to FIG. 8, an operator opens the access hatch 111 in order to access the power cables 130 located inside the hollow body 110 of the lamppost 100. Thus, the operator can access the portions of the power cables 130 located at the high mounting position P1. Then, the operator selects a sealing member 20, from a set of sealing members 20, which corresponds to the diameters of the power cables 130. Still with reference to FIG. 8, the sealing member 20 is then mounted on the supply cables 130 at the high mounting position P1 via the access hatch 111. For this purpose, the two jaws 20A, 20B of the sealing member 20 are spaced apart in an elastic manner so as to allow the longitudinal portions of the power cables 130 to pass between said jaws 20A, 20B. Then the jaws 20A, 20B close resiliently so that the longitudinal portions of the power cables 130 are located in the mounting openings 23 of the sealing member 20 (Figure 8). Due to its elasticity, the sealing member 20 cooperates stably and tightly with the two power cables 130 at the high mounting position P1 as illustrated in FIG. 8.

With reference to FIG. 9, the operator then mounts a first part 4 of the peripheral belt 11 on the power cables 130 by cooperating with the sealing member 20.

In particular, the first part 4 is moved so that the receiving means 45 cooperate with a jaw 20A, 20B of the sealing member 20. Thus, the blocking members 46, 47 of the first part 4 allow to block in translation the first part 4 on the sealing member 20. During the cooperation, the sealing member 20 stably supports the first part 4. In other words, after cooperation, the first part 4 of the peripheral belt is stable and the operator does not need to maintain the first part 4.

Then, with reference to FIG. 10, the operator mounts the second part 4 'of the peripheral belt 11 on the power cables 130. To do this, the second part 4' is fitted with the first part 4 by means connection 43, 44 to form the peripheral belt 11. The sealing member 20 extends in the lower housings of the two parts 4, 4 ′ of the peripheral belt 11 and forms the bottom wall of the container 10. A cavity interior I is thus delimited by the peripheral belt 11 and by the sealing member 2, the waterproof container 10 being open by its upper face as illustrated in FIG. 2.

In order to fill the interior cavity I with a hardening material 9, the container 10 is slid vertically down a few centimeters by the operator so that the latter can visually access the upper face of the container 10 via the access hatch 11 as illustrated in FIG. 11. The operator can then connect the first end 31 of the injection pipe 30 to a fixing member 49 to open into the interior cavity I. The second end 32 of the injection pipe 30 is placed in outside the hollow body 110 by the access hatch 111 as illustrated in FIG. 12.

In order to place the sealed container 10 in the low securing position P2, the operator grasps the outer surface of the container 10 with one hand and slides the container 10 in the low securing position P2 as illustrated in FIG. 13. Advantageously, the presence of flats 12 on the outer surface of the container 10 facilitates gripping by the operator. The container 10 is guided along the supply cables 130 by the sealing member 20 in particular by the mounting openings 23. During the movement of the sealed container 10, the blocking members 46, 47 constrain peripherally the sealing member 20 which is moved in a controlled manner.

With reference to FIG. 13, in the low securing position P2, the anti-theft device 1 is remote from the access hatch 111 and extends near the base of the power cables 130. Still with reference to the FIG. 13, the second end 32 of the injection pipe 30 is connected to a reservoir 90 of hardener material 9 in the liquid state in order to fill the interior cavity I of the container 10. The sealing member 20 and the peripheral belt 11 make it possible to form a sealed internal cavity I preventing any liquid leakage of hardening material 9. This allows practical filling of the internal cavity I away from the access hatch 111. The container 10 filled with hardening material 9 forms an anti-theft device joining the two power cables 130 together.

With reference to FIG. 14, once hardened, the hardener material 9 secures the power cables 130 to each other at the low securing position P2. Preferably, the low securing position P2 is located less than 20cm from the ground.

In the event of an attempted theft, the power cables 130 cannot be cut via the access hatch 111 under the sealed container 10, that is to say at a height lower than the low position of solidarity P2. The theft of the power cables 130 is thus made very complex. In addition, thanks to the invention, it is possible to secure existing lampposts 100, which is very advantageous.

Claims (10)

1. Floor lamp (100) comprising a lighting member (120), a hollow body (110) comprising a lower end fixed to the ground and an upper end on which the lighting member (120) is mounted and at least two power cables (130), extending in the hollow body (110), which are electrically connected to the lighting member (120), the lamppost (100) further comprising a container (10) defining a cavity interior (I) filled with a hardened material (9) forming an anti-theft device for the power cables (130), a lamppost characterized in that the container (10) is watertight and comprises a peripheral belt (11) and a bottom wall comprising guide means configured to guide the container (10) in translation along the supply cables (130) from a high mounting position (P1) to a low fixing position (P2). 2. Floor lamp (100) according to claim 1, wherein the peripheral belt (11) of the container (10) consists of a first part (4) and a second part (4 ’) assembled together. 3. Floor lamp (100) according to claim 2, wherein the first part (4) and the second part (4 ’) are identical. 4. Floor lamp (100) according to one of claims 1 to 3, wherein the guide means comprise at least two mounting openings (23), each mounting opening (23) cooperating with the outer surface of a cable d power supply (130). 5. Floor lamp (100) according to one of claims 1 to 4, wherein the bottom wall is in the form of a sealing member (20) removable from the peripheral belt (11), the member d 'sealing (20) being mounted between the container (10) and said power cables (130). 6. Floor lamp (100) according to claim 5, wherein the sealing member (20) is in the form of a clamp comprising two jaws (20A, 20B) configured to close resiliently. 7. Floor lamp (100) according to one of claims 5 to 6, in which the peripheral belt (11) comprises locking members (46, 47) configured to block the translation of the sealing member (20). 8. Floor lamp (100) according to one of claims 1 to 7, comprising an injection pipe (30) extending longitudinally comprising a first end (31) connected to the container (10) and opening into the interior cavity (I ). 9. A method of installing a lamppost (100) according to one of claims 1 to 8, the method comprising: a step of mounting the container (10) around a longitudinal portion of the power cables (130) of the lamppost (100) in a high mounting position (P1), a step of translating the container (10) along the power cables (130) to a low securing position (P2), and - A step of injecting a hardener material (9) into the interior cavity (I) of the container (10) so as to secure the power cables (130) in the low fixing position (P2). 10. Installation method according to claim 9, wherein the upper mounting position (P1) and the lower securing position (P2) are spaced by a distance at least equal to 50cm.