FR3142357A1 - Container decontamination device for the manufacture of wine or the like and method of implementing this device - Google Patents

Abstract

Container decontamination device for the manufacture of wine or the like and method of implementing this device. The invention relates to a device for decontaminating a food container for the manufacture of wine or other alcoholic beverages by ultraviolet radiation, in particular of the pulsed light type, comprising: A main body (2); An ultraviolet radiation lamp or UV lamp -C (4); A retractable sheath (3) mounted sliding on said main body (2) between a rest position in which said UV-C lamp (4) is entirely inserted in said retractable sheath (3) and a position of use in which said UV-C lamp (4) extends outside said retractable sheath (3) against the action of elastic return means in the rest position; A base (5) located at the lower end of said sheath retractable (3), said base (5) bearing against said container (100) in said position of use; Advantageously, this device (1) comprises actuation means configured to allow, when said device (1) is removed from said container (100), a progressive return of said retractable sheath (3) from said position of use to said position rest. The invention also relates to a method of implementing this device. Figure for abstract: Fig. 1

Description

Container decontamination device for the manufacture of wine or the like and method of implementing this device

The present invention relates to the field of decontamination using containers for the manufacture of wine or the like, such as barrels, stainless steel or concrete tanks, tuns, amphoras, etc. this by means of ultraviolet radiation, in particular of the pulsed light type.

In the known state of the art, several methods of decontaminating wine barrels are used. These backs use, for example, steam, hot water under pressure, ultrasound, ozonated water, a mixture of soda and permanganate and/or a sulfur wick. This last method is the most widespread for decontaminating wine barrels. However, the use of sulfur is not without risks for human health, which is why there is a need to find alternative solutions to this method.

Decontamination by ultraviolet radiation proves to be a more effective, more ecological and healthier solution than the aforementioned decontamination methods.

More precisely, it is known to use ultraviolet radiation lamps or UV-C lamps which are inserted into the container to be decontaminated.

Document ES1265944 U discloses a container decontamination device for the manufacture of wine or other alcoholic beverages using ultraviolet radiation. Said device comprises a main body comprising an ultraviolet radiation lamp or UV-C lamp, a retractable sheath capable of sliding along said main body between: a rest position in which said UV-C lamp is entirely inserted inside said body main body and a position of use in which said UV-C lamp extends outside said main body at a second lower end thereof. Said device also includes actuation means making it possible to ensure the sliding of said sheath between the two positions. A spring makes it possible to maintain said UV-C lamp in the rest position as long as the actuation means are not actuated. A holding means is also described in order to compensate for the action of said spring and to maintain said UV-C lamp in said container in its position of use.

This device requires the use of a support grid equipped with feet and bearing against said container. Said UV-C lamp is then held in position on said grid to then be inserted, through said grid, into said container. This configuration has the disadvantage of making the installation of said UV-C lamp in said container long and tedious.

Document US2020/0230273 A1 overcomes this drawback by proposing a support in the form of a base fixed directly to a retractable sheath. More specifically, this document describes a portable ultraviolet radiation decontamination device for a container for making wine. Said device comprises: a main body, an ultraviolet radiation lamp or UV-C lamp fixed to a second lower end of said main body, a retractable sheath mounted sliding on said main body between a use position and a rest position, a means of gripping said device. Said gripping means is fixed to a first upper end of said main body. When said UV-C lamp is inserted into said container, said retractable sheath comes to bear, via said base, against said container and slides along said main body. Said retractable sheath then finds itself in a position of use in which said UV-C lamp extends outside of said retractable sheath at a second lower end of the latter. When said UV-C lamp is removed from said container, a spring exerts a restoring force so as to allow said retractable sheath to slide along said main body in order to cover said UV-C lamp, said retractable sheath then finds itself in a position rest.

Although this device facilitates the installation of the UV-C lamp, it nevertheless presents disadvantages when removing said UV-C lamp by an operator. Indeed, faced with the restoring force exerted by said spring when removing said UV-C lamp, the operator must then exert a resistance force in order to avoid too rapid release of the device which could damage said UV-C lamp. . In addition, the gripping means of said device consists of a tubular cap and does not allow a good grip by the operator, thus making the use of said UV-C lamp difficult and potentially damaging the latter in the event of poor handling. There is therefore a need to facilitate the installation, removal and handling of said device.

Furthermore, the retractable sheath described by document US2020/0230273 is transparent so, if said UV-C lamp is turned on while the latter is not yet inserted into said container, the operator runs a risk of exposure to the light. However, exposure to ultraviolet light can be very harmful to your health.

Although document ES1265944 U describes an opaque retractable sheath, making it possible to limit exposure to light, it is however necessary, before inserting said UV-C lamp into said container, to turn on the latter and check whether the latter is well lit. The operator is then exposed to ultraviolet radiation from said UV-C lamp. There is therefore a need to improve the safety of operators handling such a device.

The present invention aims to remedy these various drawbacks by proposing a container decontamination device, for the manufacture of wine or the like, which is easy to install and handle and ensures the safety of the operators.

• Un corps principal comportant des moyens de préhension fixés à une première extrémité supérieure dudit corps principal ;
• Une lampe à rayonnement ultraviolet ou lampe UV-C fixée à une seconde extrémité inférieure dudit corps principal ;
• Un fourreau rétractable monté coulissant sur ledit corps principal entre une position de repos dans laquelle ladite lampe UV-C est entièrement insérée dans ledit fourreau rétractable et une position d’utilisation dans laquelle ladite lampe UV-C s’étend en dehors dudit fourreau rétractable à une seconde extrémité inférieure de ce dernier contre l’action de moyens de rappel élastique en position de repos ;
• Une embase située sur ladite seconde extrémité inférieure dudit fourreau.

For this purpose, the present invention relates to a device for decontamination by ultraviolet radiation, in particular of the pulsed light type, of a food container for the manufacture of wine or other alcoholic beverages, this decontamination device comprising:

• A main body comprising gripping means fixed to a first upper end of said main body;
• An ultraviolet radiation lamp or UV-C lamp attached to a second lower end of said main body;
• A retractable sheath mounted sliding on said main body between a rest position in which said UV-C lamp is entirely inserted into said retractable sheath and a position of use in which said UV-C lamp extends outside said retractable sheath a second lower end of the latter against the action of elastic return means in the rest position;
• A base located on said second lower end of said sheath.

The decontamination device according to the invention is characterized in that it comprises actuation means configured to allow, upon removal of said device from said container, a progressive return of said retractable sheath from said position of use to said position of rest.

According to an additional characteristic of the invention, the decontamination device comprises a device for igniting the UV-C lamp. The decontamination device also includes a means of detecting darkness, such as a light sensor. This feature ensures operator safety. Indeed, as long as the brightness sensor detects the surrounding light, the UV-C lamp ignition device cannot be activated.

According to another additional characteristic, the decontamination device comprises means for detecting the position of the retractable sheath. Preferably, these position detection means may include a position sensor of the retractable sheath and a limit stop or even a mechanical lever contactor. The position sensor is configured to detect the end position of the retractable sheath in the use position. The UV-C lamp ignition device cannot be activated until the position detection means have detected that the retractable sheath has reached the end of its travel.

This configuration ensures that the decontamination device is correctly inserted into the container to be decontaminated, more particularly, that the UV-C lamp is fully inserted inside the container and is no longer visible to an operator, in order to to prevent exposure to ultraviolet radiation.

Thus, the UV-C lamp can only be activated when it is completely in the dark and the retractable sheath has reached the end of its travel.

According to another additional characteristic, the device comprises means for maintaining the latter in the container to be decontaminated during the position in which the device is used.

According to another additional characteristic, the holding means are located on a first upper end of the UV-C lamp.

According to another additional characteristic, the holding means comprise at least three holding tabs, preferably four holding tabs. The said retaining tabs are preferably metallic.

According to another additional characteristic, the holding tabs are configured to deploy after insertion of the device into an opening in the container to be decontaminated.

Thus, once the device is inserted into this container to be decontaminated, it is held in position and blocked against the container to be decontaminated via the base and the retaining tabs.

According to another additional characteristic, the gripping means of the decontamination device preferably take the form of a handle. This characteristic makes it easier for an operator to grip the decontamination device.

According to another additional characteristic, the device comprises means for positioning the device in a vertical or horizontal position. Advantageously, the positioning means are made in the form of hooks.

According to another additional characteristic, the retractable sheath comprises air evacuation means which make it possible to evacuate the heat dissipated by the UV-C lamp during its use, preferably formed by evacuation orifices.

According to another additional characteristic, the device comprises means for measuring the radiation emitted by the UV-C lamp, preferably consisting of a photodiode. This characteristic makes it possible to detect the level of wear of the UV-C lamp.

According to another characteristic of the invention, the decontamination device comprises means for connecting power to a power supply and control station. This advantageously comprises a trolley, equipped with a docking station for said decontamination device. This feeding and control station is also preferably equipped with movement means and handling means, allowing the operator to move easily around the containers, thus facilitating the use of the decontamination device.

The power supply and control station also includes a control console, advantageously equipped with a control screen preventing the operator from intervening directly on the decontamination device during its operation.

This power supply and control station can also be provided with auxiliary connection means for connecting other types of decontamination tools to this station, for example.

The power supply and control station includes means of connection to an electrical supply network.

In a possible variant, it can, if necessary, also accommodate an independent power supply, such as at least one rechargeable battery.

The invention also relates to a method of implementing a decontamination device according to the invention for the decontamination of a food container for the manufacture of wine or other alcoholic beverages, by ultraviolet radiation, in particular of the light type. pulsed, this container comprising at least one opening.

• une étape d’application de l’embase à la seconde extrémité inférieure du fourreau rétractable au-dessus de l’ouverture du contenant ;
• une étape d’engagement de la lampe UV-C à l’intérieur du contenant au travers de ladite ouverture en repoussant le fourreau rétractable depuis sa position de repos dans sa position d’utilisation, contre l’action de moyens de rappel élastique ;
• une étape d’accrochage du dispositif de décontamination sur le contenant ;
• une étape de vérification comprenant la vérification d’au moins deux conditions de sécurité parmi les suivantes :
  • le moyen de détection d’obscurité détecte que la lampe UV-C est placée dans l’obscurité ;
  • le capteur de position du fourreau rétractable détecte la fin de course de ce dernier qui vient en butée contre le contenant ;
• une étape de transmission comprenant la transmission au poste d’alimentation et de pilotage et/ou au dispositif d’allumage de la lampe UV-C d’informations de vérification des conditions de sécurité ;
• une étape de validation dans laquelle :
  • si au moins une des deux conditions de sécurité n’est pas vérifiée alors une alerte est émise audit poste d’alimentation et de pilotage et/ou au dispositif d’allumage de ladite lampe UV-C afin de contrôle et/ou réitération des étapes précédentes ;
  • si toutes les conditions de sécurité sont vérifiées, le dispositif d’allumage de la lampe UV-C 4 peut alors être activé.

The process is characterized in that it comprises:

• a step of applying the base to the second lower end of the retractable sheath above the opening of the container;
• a step of engaging the UV-C lamp inside the container through said opening by pushing the retractable sheath from its rest position into its use position, against the action of elastic return means;
• a step of hanging the decontamination device on the container;
• a verification step comprising the verification of at least two security conditions among the following:
  • the darkness detection means detects that the UV-C lamp is placed in the dark;
  • the position sensor of the retractable sheath detects the end of travel of the latter which abuts against the container;
• a transmission step comprising the transmission to the power supply and control station and/or to the UV-C lamp ignition device of information for verifying the safety conditions;
• a validation step in which:
  • if at least one of the two safety conditions is not verified then an alert is issued to said power supply and control station and/or to the ignition device of said UV-C lamp in order to control and/or repeat the steps previous ones;
  • if all safety conditions are verified, the UV-C lamp 4 ignition device can then be activated.

Other particularities and advantages will appear in the detailed description, which follows, of a non-limiting exemplary embodiment of the invention illustrated by Figures 1 to 5 attached and in which:

represents a schematic view of a device for decontaminating a container according to the invention when the retractable sheath is in the rest position;

represents a schematic view of a longitudinal section of the device according to the invention when the retractable sheath is in the rest position;

represents a schematic view of a device for decontaminating a container according to the invention when the retractable sheath is in the use position;

represents a schematic view of the power supply and control station to which the decontamination device according to the invention is connected;

represents a schematic view of the use of a decontamination device according to the invention.

The present invention relates to a decontamination device 1 for a container 100 for the manufacture of wine or other alcoholic beverages by ultraviolet radiation and more particularly by pulsed light.

As illustrated in Figures 1 and 2, the decontamination device 1 comprises a main body 2, preferably cylindrical. This main body 2 comprises at a first upper end gripping means advantageously taking the shape of a handle 210. The decontamination device is also provided with a UV-C lamp 4, preferably a pulsed light lamp. The main body 2 is extended by the UV-C lamp 4 which extends substantially along the longitudinal axis of the main body 2. More particularly, the UV-C lamp 4 is fixed on a second lower end of the main body 2.

The decontamination device 1 also comprises a retractable sheath 3 comprising a first upper end and a second lower end. The retractable sheath 3 is provided with a base 5. This base 5 is located on the second lower end of the retractable sheath 3.

In these figures 1 and 2, the retractable sheath 3 is positioned in a rest position in which the UV-C lamp 4 is entirely inserted inside the retractable sheath 3.

There illustrates the retractable sheath 3 in a position of use in which the UV-C lamp 4 extends outside said retractable sheath 3 at a second lower end of the latter.

More particularly, the retractable sheath 3 is slidably mounted on the main body 2 between a rest position in which said UV-C lamp 4 is entirely inserted in said retractable sheath 3 and a position of use in which said UV-C lamp 4 extends outside said retractable sheath 3 at a second lower end of the latter.

The retractable sheath 3 comprises a main portion 32 and a connecting portion 31. The main portion 32 extends from the second lower end of the retractable sheath 3 to the connecting portion 31. The connecting portion 31 is located in the continuity of the main portion 32 and extends from the main portion 32 to the first upper end of said retractable sheath 3. The diameter of the connecting portion 31 is less than the diameter of the main portion 32. The retractable sheath 3 slides on the main body 2 via the connecting portion 31.

The decontamination device 1 also comprises elastic return means, preferably consisting of a spring 20. The spring 20 is fixed at the level of the first upper end of the retractable sheath 3. More particularly, the spring 20 is fixed to the portion of connection 31 and is positioned around the main body 2, preferably cylindrical. When removing the decontamination device 1 from the container, the elastic return means allow the retractable sheath 3 to return to its rest position.

In addition, the decontamination device 1 comprises actuation means configured to allow, when said device 1 is removed from said container 100, a progressive return of said retractable sheath 3 from said position of use to said rest position, this in ensuring throughout the maintenance of the base 5 above the opening 108 of the container 100. This makes it possible to avoid any risk of exposure to ultraviolet radiation if, as will be explained in more detail below , the lamp remained in operation despite the particular safety features provided by the invention.

There illustrates a power supply and control station 10 to which the decontamination device 1 is connected by power connection means 211.

Note that these power connection means 211 are advantageously connected so as to be disconnected from the power supply and control station 10. In particular, said power connection means 211 can be equipped at their opposite end to the decontamination device 1, a connection socket, preferably of the male type, designed to cooperate with a connection socket preferably of the female type equipping the power supply and control station 10. This configuration allows the possible connection of this station power supply and control 10 of other types of decontamination tool by UV-C radiation.

The power supply and control station 10 comprises a carriage 101 provided with movement means such as, for example, wheels. The cart 101 also includes handling means, particularly in the form of handles. The power supply and control station 10 preferably comprises a control console 102 advantageously provided with a control screen 103.

This power supply and control station 10 includes means, not shown, for connecting to an electrical supply network of a building. According to a possible variant, it can also be provided with an independent power supply, comprising at least one rechargeable battery.

As shown, this power supply and control station 10 comprises according to the invention a docking station 107 of the decontamination device 1 in the form of hooking and/or fixing means 104, 105, or even in the form of means winding 106 of the power connection means 211. Preferably, the docking station 107 of the decontamination device 1 is provided on one of the vertical sides of the power supply and control station 10.

This power supply and control station 10 can also be provided with auxiliary connection means 110 for the simultaneous connection to this same station 10 of other types of decontamination tools, for example.

There illustrates the use of the decontamination device 1 engaged in a container 100 through an opening 108. The retractable sheath 3, in the position of use, is supported near the opening 108, on the container 100 by the intermediate of the base 5. The shape of the base 5 is configured to match the shape of the container. When removing the decontamination device 1 outside the container 100, the retractable sheath 3 remains supported through the base 5 against the container 100, around the opening 108. The return force of the spring 20 allows sliding of the retractable sheath 3 along the main body 2 until the retractable sheath 3 returns to its rest position.

The ultraviolet radiation lamp or UV-C lamp 4 is preferably a pulsed light lamp. The shape of the UV-C lamp 4 is preferably tubular and “U” shaped.

As illustrated in Figures 2 and 3, the UV-C lamp 4 is fixed at its first upper end to the second lower end of the main body 2. Preferably, at this first upper end of the UV-C lamp 4 that -this comprises a lamp head 41 via which it is fixed to the main body 2.

Furthermore, at this first upper end of the UV-C lamp, more particularly at the lamp head 41, elements are provided for holding the decontamination device 1 in the container to be decontaminated. More particularly, the holding elements are formed by holding tabs 411. These holding tabs 411 are preferably metallic. The holding elements are configured to deploy once the retractable sheath 3 has reached its end of travel. Thus, the container 100 is gripped between the base 5 whose shape matches that of the container 100 and the holding elements. This configuration thus makes it possible to fix the decontamination device 1 on the container 100 and prevents its accidental removal. Removal of the decontamination device 1 is only permitted by the application to the latter of an external traction force, for example exerted by an operator, a traction force greater than the retaining force exerted by the retaining tabs 411 on container 100.

As illustrated on the , the main body 2 comprises gripping means advantageously taking the form of a handle 210. The gripping means are located on a first upper end of the main body 2. The first upper end of the main body 2 preferably comprises a base 21 on to which the handle 210 is fixed. Advantageously, the gripping means include a coating which facilitates gripping by an operator.

Note that at the level of this base 21 the power supply connection means 211 can terminate. In addition, the base 21 of the main body 2 comprises means for positioning the decontamination device 1, on the power supply and control 10 or in a container 100, in a vertical or horizontal position, in order to allow better stabilization of the decontamination device 1. More particularly, the positioning means are made in the form of hooks 6.

As illustrated in Figures 1 to 3, the retractable sheath 3 comprises air evacuation means 33 configured to evacuate the heat dissipated by the UV-C lamp 4. Preferably, the air evacuation means 33 are formed by evacuation orifices 34. The air evacuation means 33 are located on an upper part of the main portion 32 of the retractable sheath 3. The upper part of the main portion 32 of the retractable sheath 3 surrounds the head of lamp 41 in the rest position of the retractable sheath 3. This configuration allows better heat evacuation when using the decontamination device in a vertical position.

The decontamination device 1 also includes means for measuring the radiation emitted by the UV-C lamp 4, preferably consisting of a photodiode, in order to allow measurement of the level of wear of the UV-C lamp 4 and thus to control its efficiency. Preferably, the measuring means are placed inside the main body 2.

The decontamination device 1 comprises a means of detecting darkness such as, for example, a light sensor. As long as the light sensor detects the surrounding light, the UV-C lamp cannot be switched on.

The UV-C lamp 4 can only be switched on when the latter is fully inserted into the container 100 to be decontaminated and is in the dark, in order to protect the operator from the light emitted by the UV-C lamp 4. Preferably, the darkness detection means is placed inside the main body 2.

As illustrated on the , the decontamination device 1 comprises means for detecting the position of the retractable sheath 3. The detection means may, for example but not limited to, comprise a position sensor provided with a first stop and an end-of-stroke stop or position sensor fitted with a lever switch.

According to one embodiment, the end stop can be located on the main body 2 to cooperate with a first stop located inside the retractable sheath 3 when the latter reaches its position of use. Advantageously but not limitingly, the first stop can be located on the first upper end of the retractable sheath 3.

According to another embodiment, the end stop can, for example, be located in the retractable sheath 3 near the base 5, to cooperate with a first stop located on the second lower end of the main body 2 when the retractable sheath 3 reaches its position of use.

The position detection means of the retractable sheath 3 are configured to detect the end position of the retractable sheath 3 in the use position.

The UV-C lamp 4 can only be switched on when the position detection means detect that the retractable sheath 3 has reached the end of its travel in the use position.

The decontamination device 1 also includes a device for igniting the UV-C lamp 4. The latter can only be activated when the UV-C lamp is completely placed in the dark and the retractable sheath 3 has arrived in limit switch.

Advantageously, the decontamination device comprises transmission and alert means, in particular adapted to transmit to the power supply and control station 1 and/or to the ignition device of said UV-C lamp (4) information of verification or alert, for example of a malfunction detected by the darkness detection means and/or the position detection means of the retractable sheath 3.

The invention also relates to a method of implementing a decontamination device 1 according to the invention and comprising a power supply and control station 10 for the decontamination of a food container 100 for the manufacture of wine or other alcoholic beverages by ultraviolet radiation, preferably by pulsed light.

• une étape d’application de l’embase 5 à la seconde extrémité du fourreau ré- tractable 3 au-dessus d’une l’ouverture 108 dans le contenant 100 ;
• une étape d’engagement de la lampe UV-C 4 à l’intérieur du contenant 100 au travers de l’ouverture 108 en repoussant le fourreau rétractable 3 depuis sa position de repos dans sa position d’utilisation, contre l’action des moyens de rappel élastique 2 ;
• une étape d’accrochage du dispositif de décontamination sur le contenant 100 ;
• une étape de vérification comprenant la vérification d’au moins deux conditions de sécurité parmi les suivantes :
  • le moyen de détection d’obscurité détecte que la lampe UV-C 4 est placée dans l’obscurité ;
  • les moyens de détection de positon du fourreau rétractable 3 détectent la fin de course de ce dernier qui vient en butée contre le contenant 100 ;
• une étape de transmission comprenant la transmission d’informations de vérification desdites conditions de sécurité à un poste d’alimentation et de pilotage 10 et/ou à un dispositif d’allumage de ladite lampe UV-C.
• une étape de validation dans laquelle :
  • si au moins une desdites deux conditions de sécurité n’est pas vérifiée alors une alerte est émise audit poste d’alimentation et de pilotage 10 et/ou au dispositif d’allumage de ladite lampe UV-C (4) afin de contrôle et/ou réitération des étapes précédentes ;
  • si toutes les conditions de sécurité sont vérifiées, ledit dispositif d’allumage de ladite lampe UV-C 4 peut alors être activé.

The process is characterized in that it comprises:

• a step of applying the base 5 to the second end of the retractable sheath 3 above an opening 108 in the container 100;
• a step of engaging the UV-C lamp 4 inside the container 100 through the opening 108 by pushing the retractable sheath 3 from its rest position into its position of use, against the action of the means elastic return 2;
• a step of attaching the decontamination device to the container 100;
• a verification step comprising the verification of at least two security conditions among the following:
  • the darkness detection means detects that the UV-C lamp 4 is placed in the dark;
  • the position detection means of the retractable sheath 3 detect the end of travel of the latter which abuts against the container 100;
• a transmission step comprising the transmission of information for verifying said safety conditions to a power supply and control station 10 and/or to an ignition device for said UV-C lamp.
• a validation step in which:
  • if at least one of said two safety conditions is not verified then an alert is issued to said power supply and control station 10 and/or to the ignition device of said UV-C lamp (4) in order to control and/or or reiteration of previous steps;
  • if all the safety conditions are verified, said ignition device of said UV-C lamp 4 can then be activated.

During the step of positioning the decontamination device 1 on the container, the base 5 comes to bear against the container, the shape of the base 5 matches that of the container so as to avoid any exposure of a user to leaks of UV-C radiation and maintaining the decontamination device 1 in position on the container. This step may include the use of positioning means, preferably made in the form of hooks 6, in order to allow the positioning and stabilization of the device in the container 100.

During the hooking step of the decontamination device 1, the retractable sheath 3 slides, from its rest position, along the main body 2, to its position of use. When the retractable sheath reaches the end of its travel, the retaining tabs 411 deploy under the container. The container is then gripped between the base 5 and the holding tabs 411 and thus allows the decontamination device 1 to be held in position and blocked in the container 100.

Claims (14)

Device for decontaminating a food container for the manufacture of wine or other alcoholic beverages by ultraviolet radiation, in particular of the pulsed light type, comprising:

• A main body (2) comprising gripping means fixed to a first upper end of said main body (2);
• An ultraviolet radiation lamp or UV-C lamp (4) attached to a second lower end of said main body (2);
• A retractable sheath (3) slidably mounted on said main body (2) between a rest position in which said UV-C lamp (4) is entirely inserted in said retractable sheath (3) and a position of use in which said lamp UV-C (4) extends outside said retractable sheath (3) at a second lower end of the latter against the action of elastic return means in the rest position;
• A base (5) located on said second lower end of said retractable sheath (3), said base (5) bearing against said container (100) in said position of use;

characterized in that said device (1) comprises actuation means configured to allow, upon removal of said device (1) from said container (100), a progressive return of said retractable sheath (3) from said position of use towards said rest position. Decontamination device (1) according to claim 1, characterized in that it comprises a power supply and control station (10) to which the decontamination device (1) is connected by power supply connection means (211) . Decontamination device (1) according to claim 2, characterized in that the power supply and control station (10) comprises a control console (102). Decontamination device (1) according to any one of the preceding claims, characterized in that it comprises a darkness detection means. Decontamination device (1) according to any one of the preceding claims, characterized in that it comprises means for detecting the position of said retractable sheath (3). Decontamination device (1) according to one of the preceding claims, characterized in that it comprises transmission and alert means designed to transmit verification and/or alert information to the power supply and control station (10). Decontamination device (1) according to any one of the preceding claims, characterized in that it comprises means for maintaining said decontamination device (1) in said container (100). Decontamination device according to claim 7, characterized in that said holding means are located at a first upper end of said UV-C lamp (4). Decontamination device (1) according to claim 8, characterized in that said first upper end of said UV-C lamp (4) comprises a lamp head (41) on which said holding means are located. Decontamination device (1) according to one of claims 7 to 9, characterized in that said holding means comprise at least three holding tabs (411). Decontamination device according to any one of the preceding claims, characterized in that said gripping means are made in the form of a handle (210). Decontamination device according to any one of the preceding claims, characterized in that said retractable sheath (3) comprises air evacuation means (33). Decontamination device according to any one of claims 2 to 12, characterized in that the power supply and control station (10) is provided with auxiliary connection means for connecting other types of decontamination tools. Method for implementing a decontamination device (1) according to claims 1 to 12 for the decontamination of a food container (100) for the manufacture of wine or other alcoholic beverages by ultraviolet radiation, in particular of the light type pulsed, characterized in that it comprises:

• a step of applying the base (5) to the second end of the retractable sheath (3) above an opening (108) in the container (100);
• a step of engaging the UV-C lamp (4) inside the container (100) by pushing the retractable sheath (3) from its rest position into its position of use, against the action of the means of elastic return (2);
• a step of attaching the decontamination device (1) to the container (100);
• a verification step comprising the verification of at least two security conditions among the following:
  • the darkness detection means detects that the UV-C lamp (4) is placed in the dark;
  • the position sensor of the retractable sheath (3) detects the end of travel of the latter which abuts against the container;
• a transmission step comprising the transmission to a control station (10) and/or to an ignition device of said UV-C lamp (4) of information for verifying said safety conditions;
• a validation step in which:
  • if at least one of said two safety conditions is not verified then an alert is issued to said power supply and control station 10 and/or to the ignition device of said UV-C lamp (4) in order to control and/or or reiteration of previous steps;
  • containing (100) and said previous steps are repeated;
  • if all the safety conditions are verified, said ignition device of said UV-C lamp 4 can then be activated.