ES2599826T3 - Suction system to aspirate a substance, preferably a fluid, out of a drum - Google Patents

Abstract

Suction system for aspirating a substance, preferably a fluid, comprising a drum (10) to contain a substance, preferably a fluid, in which the drum (10) comprises a body (12), in which the body (12 ) comprises an upper part (14), a lateral part (16) and a lower part (18), at least one nozzle (20), preferably located in the upper part (14) of the body (12), in which the nozzle (20) comprises a first opening (22) and a second opening (30) suitable for filling the body with the substance (12), in which the first opening (22) and the second opening (30) are both arranged in the nozzle (20), a suction lance (24) to aspirate the substance out of the body (12) of the drum (10), in which the suction lance (24) comprises an upper end (26) and a lower end (28), in which the upper end (26) is connected to the first opening (22) and the lower end (28) is located next to it. to the bottom (18) of the drum (10), and a connector closure (36) to seal the drum (10), in which the connector closure (36) is designed to seal and / or open the first opening ( 22) and / or the second opening (30) separately at the same time, in which the connector closure (36) further comprises ventilation means (52, 54) to ventilate the inside of the body (12) of the drum ( 10), in which the suction lance (24) is formed jointly as part of the body (12) of the drum (10).

Description

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DESCRIPTION

Suction system for aspirating a substance, preferably a fluid, out of a drum Technical field of the invention

This invention relates to an aspiration system for aspirating a substance, preferably a fluid, out of a drum, in which the aspiration system comprises a drum, a connector closure and an aspiration lance for emptying the substance from the drum.

Background of the invention

Devices and systems for emptying drums filled with a substance, for example a fluid, in various ways are known in practice. These known devices often incorporate an aspiration lance that is inserted into the drum and that is pointing from an opening of the drum into the drum to suck the substance out when it is coupled to an aspiration device (EP 1 510 462 A1). Because of this, the positioning of the suction lance inside the drum is different every time a drum is used. In addition, using known suction lances to empty the canister so that it is free of debris, a residual amount of substance remains in the canister.

For the elimination of drums that are filled with dangerous or harmful substance, for example, it is desirable to reduce the amount of substance that remains in the drum to a minimum. In addition, unintended contact of a person handling the empty canister with the substance to reduce health risks should be avoided.

Summary of the invention

It is therefore an object of the present invention to provide an aspiration system for aspirating a substance, preferably a fluid, from a drum, which allows a complete emptying of the drum without the risk of a person handling the canister coming into contact with the substance contained in the drum.

This object is solved by an aspiration system according to claim 1 of the present invention.

Accordingly, an aspiration system for aspirating a substance, preferably a fluid, from a drum, comprises a drum to contain a substance, preferably a fluid, in which the drum comprises a body, in which the body comprises a top , a side part and a bottom part, at least one nozzle, preferably located in the upper part of the body, in which the nozzle comprises a first opening and a second opening suitable for filling the body with the substance, in which the first opening and the second opening are both arranged in the nozzle, a suction lance to aspirate the substance out of the drum body, in which the suction lance comprises an upper end and a lower end, in which the upper end is connected to the first opening and the lower end is located next to the bottom of the drum, and a connector closure to seal the drum, in which the connector closure is designed to seal and / or open the first opening and / or the second opening separately at the same time, in which the connector closure further comprises ventilation means to ventilate the inside of the body of the drum, in which the lance Aspiration is formed jointly as part of the body of the drum.

The canister comprises a second opening, preferably in the upper part of the body, suitable for filling the body with the substance. This allows the second opening to be designed different from the first opening. For example, a second opening with a large diameter allows an improved, faster filling of the drum with the substance, while the first opening can be designed to comprise a diameter optimized to extract the substance out of the drum. The first opening and the second opening are both arranged in the nozzle. This reduces the manufacturing costs of the drum, reducing the complexity of the design and also avoiding the costs for an additional closure for the second opening. The first opening and the second opening may have different cross-sectional areas and / or different shapes. The first opening can be arranged eccentrically to the geometric center of the nozzle.

In addition, the connector closure is designed to seal and / or open the first opening and / or the second opening separately at the same time, in which the connector closure further comprises ventilation means for venting the inside of the drum body . This allows the first opening and / or the second opening to be closed and / or sealed by the connector closure, and if it is necessary to open or reopen the first opening and the second opening separately and independently from each other, if is desired. The ventilation means can be designed for example in the form of a ventilation valve or a ventilation membrane, allowing a gas, for example air, to flow into the drum while preventing the substance from leaving the canister through the media. of ventilation. This allows pressure compensation when the drum is attached to a suction machine, extracting the substance out of the drum by means of a depression, a vacuum for example.

Through the integration of the suction lance into the lateral part of the drum body, it is possible to define the position in which the lower end of the suction lance is positioned inside the drum. The suction lance can extend, at least partially, along and / or through the top of the drum and

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form a solidary part of the upper body. The drum and the suction lance are designed as a single piece. This makes the positioning of the lower end of the suction lance at the lowest point within the body of the drum possible for each drum, to which the remaining substance is moved, when aspirated out of the drum. To improve this, the bottom of the drum can be designed to comprise a lower point at the lower end of the suction lance. This allows the efficient, residue-free removal of the substance out of the drum body. By forming the suction lance as a solidarity part of the drum body, it is guaranteed that the lower end of the suction lance is positioned in the optimal position, that is, the lowest point inside the body, with each drum designed according to the invention. In addition, the integration of the suction lance into the canister makes it unnecessary to manipulate the suction lance by a person, for example the introduction of the suction lance into the canister, and therefore allows a clean and safe handling. . Especially after the drum is used and flushed from the substance, manipulation of the suction lance is not necessary at all, because the can according to the invention forms, especially in connection with a connector closure and a suction system described in then a closed system to extract the substance. The closed system prevents any leakage during the connection of the drum, emptying the drum and / or disconnecting the drum. Therefore, with this clean, safe and effective canister, the danger of contaminating and damaging a person handling the empty canister is avoided.

According to an embodiment of the invention, the first opening is opened inside the second opening, particularly laterally, inside the nozzle. The suction lance can extend, at least partially, along the upper part of the body. The suction lance is connected, with its upper end, to the first opening. The first opening can be connected to, in particular next to, the nozzle and in particular to the second opening within the nozzle. The first opening can be opened inside the second opening inside the nozzle, connectable to the connector closure. The first opening can be connected to a suction machine through the connector closure to aspirate the substance out of the canister through the suction lance and the first opening. This allows a reduction in nozzle height and connector closure.

According to a preferred embodiment of the invention, the connector closure comprises a connector insert and / or a connector cover. The connector closure can be designed as a single-piece or two-piece connector closure. The connector closure may comprise a connector insert and / or a connector cover. The connector insert can be disposed within the first and / or second opening and can be designed to fit in the first and / or second opening and to seal the first and / or second opening so that it can be closed again. The connector insert can be designed to be connected to the first and / or second opening while extending the first and / or second opening so that they are connectable to a suction machine, in particular a flange of a suction machine, to allow aspiration of the substance of the drum. The connector insert can close the second opening, in particular after filling the canister with the substance, while providing that the first opening is connectable to a suction machine. The connector cover can be arranged in the first and / or second opening and / or the nozzle, in particular a first and / or second opening with a connector insert, and can be designed to fit in the first and / or second opening and / or the nozzle and to seal the first and / or second opening so that it can be closed again. The connector cover may comprise access openings to allow access to for example openings, ventilation means or connector parts arranged in the connector insert. The arrangement in the first and / or second opening and / or the nozzle means that the connector cover is designed and arranged as a cover, for example a screw cover or a snap closure cover, at least partially covering the first and / or second opening and / or the nozzle, in particular the connector insert within the first and / or second opening and / or the nozzle.

According to a more preferred embodiment of the invention, the drum comprises a handle, in which the handle comprises at least a part of the suction lance. The suction lance can extend along the upper part of the drum body, allowing the suction lance with its upper end to connect to the first opening inside the nozzle. The handle can be arranged in the upper part of the body and can be formed at least partially hollow, to at least partially accommodate the suction lance. The integration of the suction lance at least partially into the drum handle can reduce the weight of the drum, increase the stability of the handle and avoid increasing costs to extend the suction lance along the upper part of the drum body .

According to a preferred embodiment of the invention, the nozzle, the connector insert and / or the connector cover comprises a profile, which coincides with the profile of an assigned flange of a suction machine connectable to the nozzle and / or connector closure. . The connector insert and / or connector cover can be connectable to the flange of a suction machine. The connector insert and / or connector cover can provide a female coupling element that matches a male coupling element of the suction machine flange, to connect to the aspiration machine flange, and in particular allow a opening that can be closed again from the first and / or second opening. As the upper end of the suction lance is connected to the first opening inside the nozzle of the aspiration system, the attachment of the suction machine flange directly to the nozzle, in particular to the connector insert and / or cover of connector, improves the handling of the suction system, in particular of the drum, when the substance is to be extracted since no additional manipulation is required, for example of an adapter or a separate suction lance. Therefore a closed suction system is provided, and the risk of contaminating a person handling the canister with the substance is avoided. In addition, a cap can be provided to seal the

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nozzle, in particular the connector insert and / or connector cover, for example for transport to protect the nozzle from dirt, which can hinder the formation of a depression by attaching the nozzle to a suction machine.

The profile may be an external profile disposed outside the connector closure, in particular the exterior of the connector cover, or the exterior of the first and / or second opening and / or the nozzle. The profile may be an internal profile disposed within the connector closure, in particular the interior of the connector cover, or the interior of the first and / or second opening. The external profile of the connector, opening or nozzle closure coincides with a corresponding internal profile of the assigned flange of the suction machine, and an internal profile of the connector, opening or nozzle closure coincides with a corresponding external profile of an assigned flange of the suction machine. The profile, in particular the matching profiles, can comprise several arranged tongue-and-groove shapes arranged around the circumference of the connector, opening or nozzle closure, which run in particular in a direction essentially parallel to an axis of the connector, opening or opening nozzle. The profile of the connector, opening or nozzle closure may be different in shape and / or size to a profile of a second connector or opening closure for example of a different suction system or for different substances. The profile, in particular the matching profile, can be designed in the form of a key and lock profile.

According to an embodiment of the invention, the drum comprises a third opening, in particular a rinse opening for rinsing the drum with a fluid, in particular water. The third opening can be located in the upper part of the drum. The third opening can be designed to be connected so that it can be closed again to a water supply to allow water to flow into the drum to clear the inside of the drum. Water to rinse the canister can be aspirated out of the canister through the suction lance after rinsing. The third opening can be arranged in the connector closure, in particular within the connector cover. The third opening can be arranged next to or inside the second opening and / or the first opening. The connector closure, in particular the connector cover, may comprise the third opening to rinse the drum. By providing a third opening, the aspiration system can be connected to a water supply to rinse the canister and essentially remove all the substance from the canister, thereby avoiding any damage to a person handling the aspiration system, in particular the drum.

According to a preferred embodiment of the invention, the third opening is located in the nozzle, in particular in the connector insert and / or connector cover. The third opening may be located within the nozzle adjacent to, or within, the first and / or second opening. This may allow the connection of the third opening to a water supply for example to be integrated into the suction machine flange. Therefore, the additional rinse function can be provided without additional handling steps.

According to an embodiment of the invention, an accessory is provided in the first, second and / or third opening. The suction system, in particular the first and / or second connector element, may comprise an accessory, in which the accessory can function as a valve that can be closed again with or without a spring. The accessory can be arranged in the first, second and / or third opening, so that the first, second and / or third opening can be closed again. The accessory may comprise a first accessory piece and a second assigned accessory piece, in which for example the first accessory piece receives the second accessory piece to open the accessory so that it can be closed again, and in which to remove the second accessory piece of the first accessory piece can close the accessory that can be closed again. The first and / or second accessory piece can be arranged in the connector closure and / or the suction system flange. The first accessory piece can for example be arranged in the connector insert and the second accessory piece can be arranged in the connector cover or the suction machine flange. The fitting can be designed in the form of a resealable connector, for example a hose coupling, a plug-in connector, or a quick coupling to establish a fluid permeable connection that can be resealed from the first, second and / or third opening with a suction machine. The accessory that can be closed again has the advantage that the suction system, in particular the drum, can be connected and removed without the risk of the substance leaking out of the drum, thus avoiding a closed suction system.

According to an embodiment of the invention, the ventilation means are arranged in the connector insert and / or connector cover. The arrangement of the ventilation means in the connector insert and / or connector cover allows an economical design of the suction system. The ventilation means can be integrated into the connector insert and / or connector cover, for example partially using the second opening to ventilate the drum, which can be sealed after filling the drum by means of the connector insert, thus using the space available in a manner effective. Therefore, this may allow a reduction in manufacturing costs.

According to a preferred embodiment of the invention, the ventilation means are designed in the form of a ventilation membrane and / or a ventilation valve. The ventilation means can be designed, for example, in the form of a ventilation valve or a ventilation membrane, allowing a gas, for example air, to flow into the drum while preventing the substance from getting out of the drum through the ventilation means. The ventilation valve may be a spring-operated valve. The ventilation membrane may be a membrane that allows the gaseous substance to pass through but not the fluid. This allows a pressure compensation of the suction system, for example air flowing into the drum, when the drum is attached to a machine

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aspiration, extracting the substance out of the drum by means of a depression, a ford for example.

According to a preferred embodiment of the invention, the connector closure, in particular the connector cover, comprises an indicator switch. The indicator switch may comprise, for example, a metal strip and a pin, in which the pin is arranged so that, when the suction machine flange is correctly mounted to the aspiration system, in particular to the connector closure, the pin It comes into contact with the connector closure and pushes the metal strip so that it comes into contact with a metal contact, for example, closing an electrical circuit, thus indicating the correct mounting of the flange to start sucking the substance out of the drum. The metal strip moved by the pin can also activate a switch, indicating the correct mounting of the flange. Therefore, the operation of a closed suction system can be provided safely.

According to a preferred embodiment of the invention, the aspiration system comprises an emptying alarm. The emptying alarm is to indicate that the substance in the drum has been used up, for example to the suction machine to stop a pump or to indicate to a person the need to change the drum. The emptying alarm may comprise a detector element connected to the first opening and / or the suction lance, for example in the connector closure, to monitor the presence and / or lack of the substance. The emptying alarm can be based on an induction based detector element. The sensing element can be designed in the form of an electromagnetic coil or an electromagnet and a float, in particular an at least partially metallic float, arranged for example in the first opening next to the electromagnetic coil, which can be arranged around the first opening. If a pump is not working and aspirating the substance from the drum, the electroiman can attract the float, sealing for example the first opening. If the pump is on and working, the electromagnet can reverse its polarity or exert a lower attraction force on the float, allowing the float to move away from the electromagnet and the electromagnetic field. A flowing substance can move the float, in particular in a downstream direction, away from the electroiman, thus indicating the flow and presence of the substance, for example by altering the magnetic field of the electroiman. If the substance is depleted, the float falls towards the electroiman, indicating the lack of substance, for example altering the magnetic field of the electroiman, reducing the distance to it. By activating the emptying alarm, the electroiman can reverse its polarity again to attract the float to the electroiman, thus sealing the opening. Therefore, the suction machine may stop and an alarm may sound.

According to an embodiment of the invention, the connector closure (36) is designed as a snap-fit connector closure (36). The connector closure may comprise positive locking means that match positive locking means arranged in the nozzle. The connector closure can also be designed as a screw connector closure. This allows a time-saving adjustment of the connector closure without the use of tools.

In an exemplary embodiment, the lower part of the body is inclined inside, preferably inclined towards the lower end of the suction lance. By forming the interior of the lower part in such a way that it is inclined and / or twisted, it is possible to guide the remaining substance in a defined direction, when the substance is removed out of the drum and when the level of substance decreases. Therefore, a final remaining amount of substance can be guided towards the lower end of the suction lance to further improve the residue-free extraction outside the drum.

In a further exemplary embodiment, the drum is designed to be stacked with at least a second drum of the same design. This allows stacking drums of the same design on top of each other to save space, which allows for example an efficient transport and / or storage of such drums. The lower part of the drum body can be designed so that it matches the profile of the upper part of a drum of the same design. In addition, the upper part of the body may comprise stacking means to accept the lower part of a drum of the same design. This allows the drum received to be centered by means of stacking means and to prevent relative movement between the drums. The stacking means can be formed as side walls, protruding from the upper part of the drum body above the nozzle of the drum. The stacking elements in the upper part of the body can be designed to interlock with adjustment stacking elements in the lower part of the drum.

In a further exemplary embodiment, the nozzle is designed to be able to join the flange of an aspiration machine to extract the substance out of the body of the drum. Since the upper end of the suction lance is connected to the first opening inside the nozzle, attaching the suction machine flange directly to the nozzle improves the handling of the canister when the substance is to be extracted since no manipulation is required. additional, for example an adapter or a separate suction lance. Therefore, the risk of contaminating a person handling the canister with the substance is avoided. In addition, a cap can be provided to seal the nozzle, for example for transport to protect the nozzle from dirt, which can make it difficult to form a depression when the nozzle is attached to a suction machine.

In a further exemplary embodiment, the drum further comprises a connector closure for sealing the first opening and / or the second opening. The connector closure can be adjusted inside the nozzle. The connector closure can be designed to match and / or come into contact with the flange of a suction machine attached to

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the nozzle of the drum, thus allowing a continuous connection, air tight and / or fluid, resistant to pressure of the suction machine flange with the suction lance, through the nozzle and the first opening in the nozzle. The connector closure can seal both the first opening and the second opening simultaneously, for example after the drum is filled with the substance and prepared for transport. In addition, the connector closure can seal one opening and leave the other opening open and / or unsealed, for example the second opening, for example used to fill the canister with the substance, can be closed and / or sealed by the connector closure. while the first opening, which is connected to the suction lance, can be left open and / or unsealed. By sealing it is meant by way of an air tight and / or fluid seal of an opening.

In a further exemplary embodiment, the connector closure is designed as a snap fit connector closure. The connector closure may comprise positive locking means that match positive locking means arranged in the nozzle. The connector closure can also be designed as a screw connector closure. This allows a time-saving adjustment of the connector closure without the use of tools.

In a further exemplary embodiment, the connector closure is designed to selectively seal and / or open the first opening and / or the second opening separately. This allows the first opening and / or the second opening to be closed and / or sealed by the connector closure, and if it is necessary to open or reopen the first opening and the second opening separately and independently from each other, if is desired. For example, by extracting the substance out of a drum with both sealed openings, the second opening can be kept closed and / or sealed, while the first opening is opened or reopened to allow a suction machine to be connected to the first opening for extract the substance through the suction lance that is connected to the first opening.

In a further exemplary embodiment, the connector closure comprises ventilation means for ventilating the inside of the drum body. The ventilation means can be designed for example in the form of a ventilation valve or a ventilation membrane, allowing a gas, for example air, to flow into the drum while preventing the substance from leaving the canister through the media. of ventilation. This allows pressure compensation when the drum is attached to a suction machine, extracting the substance out of the drum by means of a depression, a vacuum for example.

The components mentioned above, as well as the claimed components and the components to be used according to the invention in the described embodiments, are not subject to any special exceptions with respect to their size, shape, material selection and technical concept so that the Known selection criteria in the field of application can be applied without limitation.

Brief description of the drawings

Details, features, features and additional advantages of the object of the invention are disclosed in the subclaims, the figures and the following description of the respective figures and examples which, by way of example, show various embodiments and examples of a drum and a connector closure according to the invention. In the drawings:

Figure 1 is an illustration of a drum constructed according to the invention;

Figure 2 is a sectional drawing of a first and second opening of a drum constructed according to the invention;

Figure 3 is a sectional drawing of another arrangement of the first and second opening of the drum constructed according to the invention;

Figure 4 is a schematic view from above of the first and second apertures illustrated in Figure 3;

Figure 5 is a sectional drawing of a first and second opening with a connector insert and cover of

connector;

Figure 6 is a schematic view from above of the connector insert illustrated in Figure 5;

Figure 7 is a sectional drawing of a connector cover comprising a profile according to the invention;

Figure 8 is a schematic view from above of the connector cover shown in Figure 7 according to the invention;

Figure 9 shows a profile comprising six different forms from a) to f) constructed according to the invention; Figure 10 is a schematic perspective of an indicator switch constructed according to the invention; Figure 11 is a view similar to Figure 1, but with a different design;

Figure 12 is an illustration of a constructed drum similar to Figure 11;

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Figure 13 is a schematic drawing of a drum in a view similar to Figure 11, but from a side view; Figure 14 is a view similar to Figure 12, but showing the drum from a front perspective; Figure 15 is a drawing of a nozzle design constructed according to the invention;

Figure 16 is a view similar to Figure 15, but with a suction lance designed differently; Figure 17 is a schematic view from above of a nozzle constructed according to the invention; Figure 18 is a view similar to Figure 17, but with a nozzle designed differently; Figure 19 is a schematic illustration of a nozzle with a connector closure constructed according to the invention;

Y

Figure 20 is an illustration of a connector closure.

The illustration in Figure 1 shows a drum 10 for containing a substance, for example a liquid or fluid, comprising a body 12, in which the body 12 has an upper part 14, a lateral part 16, which may consist of one or more side elements, and a bottom 18 (not shown). The canister 10 further comprises a nozzle 20, which is located in the upper part 14 of the body 12 of the canister 10. The canister 10 comprises a first opening 22 and a second opening 30, in which the first opening 22 and the second opening 30 both are arranged inside the nozzle 20, in which both the first opening 22 and the second opening 30 are located horizontally adjacent to each other The diameter and / or cross-sectional area of the first opening 22 and the second opening 30 are different, wherein the second opening 30 shows the largest diameter and / or cross-sectional diameter, for example to fill the drum 10 with the substance. The first opening 22 in the nozzle 20 of the drum 20 is connected to an aspiration lance 24. The aspiration lance 24 is formed as a integral part of the body 12, in which the aspiration lance 24 is formed inside the body 12. The suction lance 24 is connected to the first opening 22 in the nozzle 20 with an upper end 26 and reaches the lower part 18 of the body 12 of the drum 10 with a lower end 28. The suction lance 24 is formed as a monopieza with the body 12 of the drum 10. As illustrated, the suction lance 24 can be formed as a joint part of the upper part 14 and the lateral part 16 of the body 12. The suction lance 24 can be designed to protrude at least partially towards the outside of the body 12, for example forming a bulge on the outside of the body 12. The suction lance 24 can also be designed so that the suction lance 24 protrudes at least partially towards the inside r of the body 12, for example forming a lump inside the body 12. The suction lance 24 provides a continuous, air-tight and fluid-tight connection from the lower part 18 of the body 12 to the nozzle 20, allowing thus the extraction of the substance for example by applying a depression or a vacuum. The second opening 30 has a larger diameter than the first opening 22 and can for example be used to fill the body 12 of the canister 10 with a substance. For handling, the drum 10 is provided with a handle 32 in the upper part 14.

Figure 2 illustrates a sectional drawing of a drum 10 with a nozzle 20. The first opening 22 and the second opening 30 are arranged inside the nozzle 20, in which the first opening 22 opens laterally to the inside of the second opening 30. The first opening 22 is connected to the upper end 26 of the suction lance 24. The suction lance 24 is partially integrated in a handle 32 of the drum 10, arranged in the upper part 14 of the body 12.

In Fig. 3 the first opening 22 and the second opening 30 are arranged adjacent to each other within the nozzle 20 of the canister 10. The first opening 22 is connected to the suction lance 24. The suction lance extends along the upper part 14 of the body 14 and is partially integrated in the handle 32. A view from above of the nozzle 20 in figure 3 is illustrated in Figure 4. The first and second opening 22.30 are arranged next to the another, in which the second opening 30 comprises a non-circular cross-sectional area larger than the first round opening 22 within the circular nozzle 20.

A drum 10 with a first opening 22 and a second opening 30 is illustrated in Fig. 5, in which the first opening 22 opens into the second opening 30 laterally inside the nozzle 20. Inside the nozzle 20 essentially in the second opening 30 is provided with a connector insert 46. The connector insert 46 essentially seals the second opening 30 into the drum, while connecting, in particular laterally, fluid permeable to the first opening 22, to allow the substance it is aspirated through the first opening 22 and the connector insert 46 by means of a suction machine (not shown) for example. The connector insert 46 and the nozzle 20 can be covered by a connector cover 48, shown slightly raised from the nozzle for a better illustration of the parts. The connector insert 46 comprises a ventilation membrane 50, which is arranged inside the connector insert 46 and connected by a small conduit to the inside of the drum 10 to allow a vent of the drum 10. A gas passing through the membrane of Ventilation 50 can exit through the fitted connector cover 48 not air tight. The ventilation membrane 50 is arranged in a small tube that is open towards the inside of the drum 10, protecting the ventilation membrane 50 from the substance that hits the ventilation membrane 50 directly in the event that the drum 10 falls, by example. The connector insert 46 also comprises a valve

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vent 52 with a connection (not shown) inside the drum 10 to allow air to enter the drum 10 when the substance is aspirated from the drum 10. The vent valve 52 can be designed as a unidirectional valve and can be opened by a pin 54 arranged in the connector cover 48 to open the vent valve 52 when the connector cover 48 is adjusted. The connector cover 48 can be connected to a flange (not shown) of a suction machine. The connector insert 46 may comprise a first female part of an accessory 56 and the connector cover 48 may comprise a second male adjustment piece of the accessory 56 to open the accessory 56 and allow a suction machine (not shown) to aspirate the substance of the drum 10 through the suction lance 24, the first opening 22, through the connector insert 46.

A top view of the connector insert 46 shown in Figure 5 is illustrated in Figure 6. The connector insert 46 comprises a first centrally arranged part of the accessory that can be closed again 56. On both sides of the accessory 56 are arranged the ventilation membrane 50 and ventilation valve 52. Additionally, the connector insert 46 comprises a third opening 58 for example to connect the suction system to a water supply to supply the drum 10 with water to rinse the inside of the drum 10 .

A sectional drawing of a connector cover 48 is shown in Figure 7. The connector cover 48 comprises an opening 60 to provide access to for example the first and / or second opening 22,30. The connector cover 48 comprises on the outside a profile 62, which coincides with the profile (not shown) of a flange assigned to the connector cover 48. A top view of the connector cover 48 in Figure 7 is illustrated in Figure 8. The profile 62 of the connector cover 48 is arranged circumferentially, providing an irregular pattern of a tongue and groove connection for connecting a flange to an assigned connector cover 48.

Six different profiles 62, a), b), c), d), e) and f) are illustrated in Figure 9. The profile 62 on the outside of the connector cover 48 is arranged in different patterns, comprising smaller and larger circumferential tongue-like sections of the tongue and groove connection for connecting the flange to the assigned connector cover 48. The patterns of the profile 62 can be arranged so that in several sections of 45 ° each, none, one, two or two and a half of the patterns can be arranged. The tongue-like patterns extend along the outside of the connector cover 48 essentially parallel to a symmetric axis of the connector cover 48 and / or opening 22.30 or nozzle 20.

In Fig. 10, for example, the nozzle 20 is shown, which comprises a first connector insert 46 with the connector cover 48 shown above the nozzle 20, for example before being mounted on the nozzle 20. The connector cover 48 comprises an indicator switch 64 with a strip 66 and a pin 68, in which the pin 68 can push the strip 66 towards a contact (not shown) when the connector cover 48 is correctly mounted. The pin 68 can extend out of the connector cover 48 towards the drum 10 and / or towards a suction machine flange. The pin 68 arranged in for example the connector cover 48 can be moved by means of a suction system flange when the flange is connected to the connector cover 48. By moving the pin 68 the strip 66 can be moved to indicate a correctly attached flange, thus providing an indication for a properly closed suction system.

Figure 11 illustrates a drum 10 of a design similar to drum 10 shown in Figure 1, but provides a different design of the suction lance 24 and the arrangement of the first opening 22 and the second opening 30. The suction lance 24 it is formed on the outside of the body 12 mainly in a straight line, as a integral part of the body 12. The nozzle 20 is located on the edge of the upper part 14 of the body 12. The second opening 30 comprises a larger diameter than the first opening 22, which is located adjacent to the second circular opening 30. The nozzle 20 has an oval outer circumference.

The canister 10 shown in FIG. 12 comprises an aspiration lance 24 which is formed as a integral part of the body 12 of the canister 10, in which the aspiration lance 24 protrudes or forms a bulge towards the outside of the body 12. The end upper 26 of the suction lance 24 that is connected to the first opening 22 is disposed within the nozzle, in which the nozzle 20 has a circular outer contour.

Figure 13 shows a drum 10, similar to that illustrated in Figure 12, from a side view. The suction lance 24 is formed as a single piece with the side part 16 of the body 12. The suction lance 24 extends from the bottom 18 to the first opening 22, located inside the nozzle 20, which has a circular outer contour. The drum 10 also comprises stacking means 34, which are formed as side walls, rising to the height of the nozzle 20, to allow a stack of drums 10 of the same design.

In Figure 14 a drum 10, similar to that illustrated in Figure 13, is shown in a front view. The suction lance 24 is formed towards the outside of the body 12. Stacking elements 34 are formed as side walls, which rise to the upper level of the nozzle 20, to allow the stacking of drums 10 of the same design one on top of the other.

Figure 15 illustrates a nozzle 20, which is centrally arranged in the upper part 16 of the body 12 of the drum 10. The first opening 22 and the second opening 30 are both arranged horizontally adjacent to each other.

5

10

fifteen

twenty

25

30

35

40

Four. Five

inside the nozzle 20. The suction lance 24 is formed inside the body 12. The arrow indicates the filling of the substance in the canister 10 through the second opening 30.

Figure 16 shows a drum 10 with a nozzle 20 centrally disposed in the upper part 14 of the body 12, in which the suction lance 24 is formed on the outside of the body 12 as a single piece with the body 12.

The first opening 22 and the second opening 24 shown in Figure 17 are both arranged inside the nozzle 20 horizontally adjacent to each other. The nozzle 20 has an oval outer contour. The first opening 22 and the second opening 30 both comprise a circular cross-sectional area, in which the second opening 30 has a larger cross-sectional area than the first opening 22.

The nozzle 20 in Figure 18 has a circular outer contour, with both the first opening 22 and the second opening 30 disposed within the nozzle 20. The first opening 22 and the second opening 30 flow into the nozzle 20 with a sectional area circular cross. Inside, the nozzle 20 comprises two zones of different shape in which the two openings flow. These areas can be contacted by means of a seal of a flange 38 of a suction machine (not shown), to allow the accumulation of a ford to extract the substance out of the drum.

Figure 19 shows a cross-sectional view of a drum 10 with a nozzle 22. The first opening 22 and the second opening 30 are both arranged inside the nozzle 20. Inside the nozzle 20, covering both the first opening 22 Like the second opening 30, a connector closure 36 is arranged. The connector closure 36 can receive a flange 38 from a suction machine (not shown), to extract the substance out of the drum 10. The flange 38 can be threaded into the nozzle 20. With the flange 38 fitted to the nozzle 20, the suction machine is connected to the first opening 22 and the suction lance 24 and can accumulate a ford that allows the substance to flow up through the suction lance 24, the first opening 22, the connector closure 36, the flange 38, towards the suction machine.

Figure 20 shows a connector closure 36 suitable for sealing, for example, the second opening 30, after the drum 20 has been filled with the substance. The connector closure 36 can be pressed on, snapped or threaded into the drum 10 to seal the opening. Connector closure 36 can only be removed with a tool, not manually. The connector closure 36 comprises a spring 40, which applies a pressure on a cover that can be moved from the connector closure 36. The spring 40 can be made of plastic and is supported by a spring support 42. The cover that can be moved comprises a sealed 44 to avoid any leakage of the substance.

The combinations of particular elements and features in the embodiments detailed above are only by way of example, the exchange and replacement of these teachings can be contemplated. However, the scope of the invention is defined in the following claims, whereby the reference numbers used in the description and the claims do not limit the scope of the invention as claimed.

List of reference numbers

10 drum

12 body

14 top

16 side part

18 bottom

20 nozzle

22 first opening

24 suction lance

26 upper end

28 lower end

30 second opening

32 handle

34 stacking means 36 connector closure

38

40

42

44

46

48

fifty

52

54

56

58

60

62

64

66

68

eyelash

spring

sealed spring support

connector insert connector cover ventilation membrane ventilation valve spike accessory third opening access opening profile

indicator switch

strip

pin

Claims (11)

one. 10 fifteen 2. twenty 3. Four. 25 5. 6. 30 7. 8. 35 9. 10. 40 eleven. 12. 45 13. Suction system for aspirating a substance, preferably a fluid, comprising a drum (10) for containing a substance, preferably a fluid, in which the drum (10) comprises a body (12), in which the body (12) comprises an upper part (14), a lateral part (16 ) and a bottom (18), at least one nozzle (20), preferably located in the upper part (14) of the body (12), in which the nozzle (20) comprises a first opening (22) and a second opening (30) suitable for filling the body with the substance (12), in which the first opening (22) and the second opening (30) are both arranged in the nozzle (20), an aspiration lance (24) for aspirating the substance out of the body (12) of the drum (10), in which the aspiration lance (24) comprises an upper end (26) and a lower end (28), in the that the upper end (26) is connected to the first opening (22) and the lower end (28) is located next to the lower part (18) of the drum (10), and a connector closure (36) to seal the drum (10), in which the connector closure (36) is designed to seal and / or open the first opening (22) and / or the second opening (30) so separated at the same time, in which the connector closure (36) further comprises ventilation means (52, 54) to ventilate the inside of the body (12) of the drum (10), in which the suction lance (24) It is formed jointly as part of the body (12) of the drum (10). Aspiration system according to claim 1, characterized in that the first opening (22) is opened inside the second opening (30), particularly laterally, inside the nozzle (20). Suction system according to claim 1 or 2, characterized in that the connector closure (36) comprises a connector insert (46) and / or a connector cover (48). Suction system according to any one of claims 1 to 3, characterized in that the drum (10) comprises a handle (32), wherein the handle (32) comprises at least a part of the suction lance (24). Suction system according to any one of claims 1 to 4, characterized in that the nozzle (20), the connector insert (46) and / or the connector cover (48) comprise a profile (62), which coincides with the profile of an assigned flange of a suction machine connectable to the nozzle (20) and / or connector closure (36). Aspiration system according to any one of claims 1 to 5, characterized in that the drum (10) comprises a third opening (58), in particular a rinse opening for rinsing the drum (10) with a fluid, in particular water. Suction system according to claim 6, characterized in that the third opening (58) is located in the nozzle (20), in particular in the connector insert (46) and / or connector cover (48). Suction system according to any one of claims 1 to 7, characterized in that an accessory (56) is provided in the first, second and / or third opening (22, 30, 58). Suction system according to any one of claims 1 to 8, characterized in that the ventilation means (50,52) are arranged in the connector insert (46) and / or connector cover (48). Suction system according to any one of claims 1 to 9, characterized in that the ventilation means (50,52) are designed in the form of a ventilation membrane (50) and / or a ventilation valve (52). Suction system according to any one of claims 1 to 10, characterized in that the connector closure (36), in particular the connector cover (48), comprises an indicator switch (64). Aspiration system according to any one of claims 1 to 11, characterized in that the aspiration system comprises an emptying alarm. Suction system according to any one of claims 1 to 12, characterized in that the connector closure (36) is designed as a pressure adjustment connector closure (36).