Water heating apparatus comprising a lid provided with a shut-off valve

Abstract

The water heating apparatus (2) comprises: a container (4); and a lid (11) comprising: a lid body (12) equipped with a filling opening (14); a closing valve (16) able to assume a closed position in which it closes the filling opening (14); and a sealing device (18) configured to extend around the filling opening (14) and to be interposed between the lid body (12) and the closing valve (16). The sealing device (18) is configured to define a vapour condensation zone (19) when the closing valve (16) assumes the closed position.

Description

Technical Field

[0001] This invention relates to the field of liquid heating equipment, particularly electric kettles. Background Technology

[0002] Document DE202018104931 discloses a water heating device, and more specifically an electric kettle, comprising: a container defining an inner cavity for containing water, and in which the water is heated and, in particular, reaches boiling; a grip handle; a pouring spout fluidly connected to the inner cavity; and a lid configured to close the container.

[0003] More specifically, this includes: - A lid body including a filling opening configured to be fluidly connected to an inner cavity and through which water can be introduced into the container; - A shut-off valve that can move between a closed position and an open position, in which the shut-off valve closes the filling opening and in which the shut-off valve releases the filling opening and allows water to fill the container; - A reset member configured to reset the shut-off valve to the closed position; and - An annular sealing joint, which is configured to extend around the filling opening and is inserted between the cover body and the shut-off valve when the shut-off valve is in the closed position.

[0004] This type of annular sealing joint is repeatedly subjected to high temperatures, which may cause irreversible deformation of the annular sealing joint and thus damage the seal at the filling opening. Therefore, after prolonged use of the heating equipment, steam may escape from the container through the filling opening, which may cause burns to the user when operating the water heating equipment and also damage the operation of the heating equipment, especially the electromechanical control device equipped with the water heating equipment.

[0005] To overcome this drawback, it is known to equip the aforementioned heating device with an annular sealing joint, which is reinforced to prevent deterioration due to the prevailing temperature inside the container, thereby increasing the manufacturing cost of the heating device. Summary of the Invention

[0006] The present invention aims to overcome all or part of these disadvantages.

[0007] The technical problem upon which this invention is based is particularly to provide a water heating device that is simple in structure, economical, and has high safety in use.

[0008] Therefore, the present invention relates to a water heating device, such as a kettle and, for example, an electric kettle, comprising: - A container that defines a content cavity for containing water, and in the content cavity, the water is used to be heated and, in particular, to reach boiling; - A lid configured to close the container, and for example, to close the upper opening of the container, the lid comprising: A lid body, the lid body including a filling opening configured to be fluidly connected to the inner cavity, and through which water can be introduced into the container; A shut-off valve, movable between a closed position and an open position, wherein in the closed position the shut-off valve closes the filling opening, and in the open position the shut-off valve releases the filling opening and allows water to fill the container; and A sealing device configured to extend around the filling opening and inserted when the shut-off valve occupies the closed position, and for example formed between the cap body and the shut-off valve, and for example between the peripheral portions of the cap body and the shut-off valve; The sealing device is configured to define at least one vapor condensation zone when the shut-off valve is in the closed position, in which vapor from the inner cavity of the container can condense, thereby sealing the junction between the cover body and the shut-off valve against vapor.

[0009] Therefore, when the water contained in the container reaches boiling point, a portion of the steam generated in the container flows between the lid body and the shut-off valve occupying the closed position, and condenses in the at least one steam condensation zone. The condensate formed in the at least one steam condensation zone remains at least partially within the steam condensation zone, and thus subsequently prevents any flow of water vapor through the filling opening. Therefore, the sealing device according to the invention avoids any escape of steam via the filling opening, which eliminates the need for expensive sealing joints.

[0010] Therefore, the sealing device described above provides increased safety in the use of the water heating device according to the present invention, while limiting the manufacturing cost of the water heating device.

[0011] The water heating device may also have one or more of the following features, which may be used alone or in combination.

[0012] According to one embodiment of the invention, the cover includes a reset member, such as a reset spring, the reset member being configured to reset the shut-off valve to the closed position.

[0013] According to one embodiment of the invention, the sealing device is a ribbed joint, and for example, a labyrinth joint.

[0014] According to one embodiment of the invention, the sealing device is at least partially formed by the cover body and / or the shut-off valve. This configuration of the sealing device simplifies the assembly of the water heating device and reduces the manufacturing cost of the water heating device.

[0015] According to one embodiment of the invention, the filling opening is through and extends from the upper surface of the cover body to the lower surface of the cover body.

[0016] According to one embodiment of the invention, the shut-off valve is configured to automatically shift to the open position under water pressure during filling of the container. This configuration of the lid facilitates filling the container with water.

[0017] According to one embodiment of the invention, the sealing device is configured to define at least two steam condensation zones when the shut-off valve is in the closed position, and for example, at least two substantially concentric steam condensation zones. This configuration of the sealing device allows for further enhancement of the operational safety of the water heating equipment according to the invention.

[0018] According to one embodiment of the invention, the sealing device includes at least a first annular rib and a second annular rib, the first annular rib being configured to extend around the filling opening, the second annular rib extending around the first annular rib, the first and second annular ribs being configured to partially define the at least one vapor condensation zone.

[0019] According to one embodiment of the invention, the at least one steam condensation zone is at least partially defined by an upper wall that is inclined relative to a horizontal plane.

[0020] According to one embodiment of the invention, the first annular rib and the second annular rib are disposed on the lid body and configured to extend downward when the container is placed on a horizontal surface.

[0021] According to one embodiment of the present invention, the first annular rib and the second annular rib are integrally formed with the cover body. In other words, the first annular rib, the second annular rib, and the cover body are made as a single piece.

[0022] According to one embodiment of the present invention, the first annular rib and the second annular rib are integral with the shut-off valve. In other words, the first annular rib, the second annular rib, and the shut-off valve are made as a single piece.

[0023] According to one embodiment of the present invention, the first annular rib and the second annular rib are configured such that when the shut-off valve occupies the closed position, the upper surface of the shut-off valve contacts the first annular rib and the second annular rib.

[0024] According to one embodiment of the present invention, the first annular rib and the second annular rib are configured such that when the shut-off valve occupies the open position, the upper surface of the shut-off valve is at a certain distance from the first annular rib and the second annular rib.

[0025] According to one embodiment of the present invention, one of the first annular rib and the second annular rib is disposed on the cover body, and the other of the first annular rib and the second annular rib is disposed on the shut-off valve.

[0026] According to one embodiment of the invention, at least one steam condensation zone is partially defined by the shut-off valve, the first annular rib, and the lower peripheral edge of the filling opening.

[0027] According to one embodiment of the invention, the first annular rib and the second annular rib are configured to cooperate with the peripheral portion of the shut-off valve when the shut-off valve occupies the closed position.

[0028] According to one embodiment of the invention, the first and second annular ribs are substantially concentric, and for example substantially concentric with respect to the central axis of the filling opening.

[0029] According to one embodiment of the invention, the first and second annular ribs are generally cylindrical.

[0030] According to one embodiment of the invention, the sealing device is configured to define at least two vapor condensation zones when the shut-off valve is in the closed position, one of the vapor condensation zones being at least partially defined by the first and second annular ribs and the shut-off valve, and the other of the vapor condensation zones being at least partially defined by the first annular rib, the lower peripheral edge of the filling opening, and the shut-off valve.

[0031] According to one embodiment of the invention, the filling opening has a through section that decreases in the direction toward the contents cavity of the container.

[0032] According to one embodiment of the invention, the cover body includes an inner peripheral wall that defines the filling opening and has a generally frustoconical shape that narrows downward, i.e., narrows toward the container.

[0033] According to one embodiment of the invention, the first and second annular ribs extend downward from the lower surface of the inner peripheral wall defining the filling opening, the lower surface being inclined relative to the horizontal surface when the container is placed on a horizontal surface. Therefore, the at least one vapor condensation zone is defined, for example, by the first and second annular ribs, the inner peripheral wall, and the shut-off valve.

[0034] According to another embodiment of the invention, the filling opening has a through section that is constant along the central axis of the filling opening. The filling opening may be defined, for example, by an inner peripheral wall of a cylindrical shape.

[0035] According to one embodiment of the invention, the filling opening has a circular cross-section.

[0036] According to one embodiment of the invention, the shut-off valve has a generally dome shape.

[0037] According to one embodiment of the invention, the cover is configured such that when the shut-off valve is in the closed position, the apex of the dome is substantially centered relative to the filling opening.

[0038] According to one embodiment of the invention, the dome has rotational symmetry about a central axis.

[0039] According to one embodiment of the invention, the shut-off valve is mounted so as to be pivotable about a pivot axis on the cover body.

[0040] According to one embodiment of the invention, the pivot axis is configured to extend substantially horizontally when the container is placed on a horizontal surface.

[0041] According to one embodiment of the present invention, the water heating device includes a pouring port that is fluidly connected to the inner cavity.

[0042] According to one embodiment of the invention, the pivot axis is positioned substantially facing the pouring opening.

[0043] According to one embodiment of the invention, the shut-off valve is positioned facing the lower surface of the cap body and is thus disposed below the filling opening.

[0044] According to one embodiment of the invention, the lid is removable relative to the container.

[0045] According to one embodiment of the invention, the lid is configured to be disposed at the upper opening of the container, and to close the upper opening when the lid is retracted onto the container, the upper opening and the filling opening being substantially coaxial.

[0046] According to one embodiment of the invention, the water heating device includes a grip handle, which is fixed to the container, for example.

[0047] According to one embodiment of the invention, the container has a central axis configured to extend substantially vertically when the container is placed on a horizontal surface. Advantageously, the pouring spout is positioned relative to the central axis of the container facing the grip handle.

[0048] According to one embodiment of the invention, the water heating device includes a fixing device configured to fix the cover to the container in a removable manner, i.e., temporarily and reversibly.

[0049] According to one embodiment of the present invention, the fixing device is a bayonet-type fixing device.

[0050] According to one embodiment of the invention, the cover includes a gripping portion configured for manipulation by a user.

[0051] According to one embodiment of the invention, the cover body is configured to rest on a peripheral support surface disposed on the container and, for example, located at the upper opening of the container.

[0052] According to one embodiment of the invention, the container includes a heating bottom located below the inner cavity and configured to heat water contained within the inner cavity. Advantageously, the heating bottom houses an electric heating element.

[0053] According to one embodiment of the present invention, the water heating device includes an electromechanical control device comprising: a bimetallic element, such as a bimetallic thermostat; and a steam delivery circuit configured to direct steam contained in the inner cavity toward the bimetallic element, the electromechanical control device being configured such that the accumulation of steam on the bimetallic element triggers a heating stop of the water heating device.

[0054] According to one embodiment of the invention, the bimetallic element is disposed in the heating bottom located below the inner cavity. According to this embodiment of the invention, the steam delivery circuit includes a steam delivery conduit having an upper end leading to the upper part of the container and a lower end leading to the heating bottom. The steam delivery conduit may, for example, partially extend into the grip handle.

[0055] According to one embodiment of the present invention, the water heating device includes an electromechanical control device, the electromechanical control device including a temperature probe, the electromechanical control device being configured to trigger a heating stop of the water heating device when the temperature measured by the temperature probe reaches a temperature threshold.

[0056] According to one embodiment of the present invention, the water heating device includes a support base, and the container is used to rest on the support base.

[0057] According to one embodiment of the invention, the shut-off valve includes an operating portion configured to be operated by a user, the operating portion being configured such that pressing the operating portion by the user causes the shut-off valve to be displaced to the open position. Attached Figure Description

[0058] The invention will be better understood with reference to the following illustrative drawings, which illustrate one embodiment of the water heating device by way of non-limiting example.

[0059] Figure 1 This is a perspective view of a water heating device according to an embodiment of the present invention, with the grip handle of the water heating device omitted; Figure 2 yes Figure 1 A partial three-dimensional top view of a water heating equipment; Figure 3 yes Figure 1 A partial three-dimensional top view of the container of the water heating equipment; Figure 4 yes Figure 1 A three-dimensional top view of the cover of a water heating device; Figure 5 yes Figure 4 A three-dimensional bottom view of the lid; Figure 6 yes Figure 1 Longitudinal sectional view of the water heating equipment; Figure 7 yes Figure 1 A partial longitudinal sectional view of a water heating device; Figure 8 yes Figure 1 A partial longitudinal sectional view of a water heating device. Detailed Implementation

[0060] Figures 1 to 8 A water heating device 2, and in particular an electric kettle, is shown according to one embodiment of the present invention.

[0061] The water heating device 2 includes a support base (not visible in the figure) and a container 4, the support base being configured to be powered by a power line (not shown in the figure), and the container 4 being configured to rest on the support base.

[0062] Container 4 has a central axis A, which is configured to extend substantially vertically when container 4 is placed on a horizontal surface. Advantageously, container 4 has a generally rotational shape about the central axis A.

[0063] Container 4 defines an inner cavity 5 for containing water, and in which the water is heated and, in particular, brought to a boil. Container 4 also includes an upper opening 6 leading to the inner cavity 5.

[0064] The container 4 also includes a heating bottom 7 located below the inner cavity 5 and configured to heat the water contained in the inner cavity 5. In a known manner, the heating bottom 7 houses an electric heating element 8, which is configured to be powered when the container 4 is placed on a support base.

[0065] The water heating device 2 also includes a gripping handle (not shown) and a pouring spout 10. The gripping handle is fixed to the container 4, and the pouring spout 10 is positioned relative to the central axis A of the container 4 facing the gripping handle. According to the embodiment shown in the figure, the pouring spout 10 is provided on the container 4 and located at the upper opening 6.

[0066] The water heating device 2 also includes a cover 11, which is configured to be disposed at the upper opening 6 of the container 4 and to close the container 4.

[0067] The lid 11 more specifically includes a lid body 12 configured to rest on a peripheral support surface 13 disposed on the container 4 and, for example, located at the upper opening 6 of the container 4. The lid body 12 may be formed, for example, by a lower body 12.1 and an upper body 12.2 assembled to each other, for example, by snapping together.

[0068] More specifically, the cap body 12 includes a filling opening 14 configured for fluid connection to the inner cavity 5 and for allowing water to be introduced into the container 4. Advantageously, the filling opening 14 is through and extends from the upper surface of the cap body 12 to the lower surface of the cap body 12, the lower surface being configured to face the inner cavity 5 of the container 4. The filling opening 14 may, for example, have a circular cross-section.

[0069] According to the embodiment shown in the figure, the filling opening 14 has a through section that decreases in the direction toward the inner cavity 5 of the container 4. Advantageously, the cover body 12 includes an inner peripheral wall 15 that defines the filling opening 14 and has a generally frustoconical shape that narrows downward, i.e., toward the container 4.

[0070] The cap 11 also includes a shut-off valve 16, which is mounted to be movable on the cap body 12 between a closed position and an open position. In the closed position, the shut-off valve 16 closes the filling opening 14, and in the open position, the shut-off valve 16 releases the filling opening 14 and allows water to fill the container 4. Advantageously, the shut-off valve 16 is positioned facing the lower surface of the cap body 12 and is therefore located below the filling opening 14.

[0071] According to the embodiment shown in the figure, the shut-off valve 16 is mounted so that it can rotate about pivot axis B on the cover body 12 (see figure). Figure 7Pivoting. Advantageously, the pivot axis B is positioned relative to the central axis of the cover body 12 facing the pouring opening 10, and is configured to extend substantially horizontally when the container 4 is placed on a horizontal surface.

[0072] According to the embodiment shown in the figure, the shut-off valve 16 has a generally dome shape. Advantageously, the dome has rotational symmetry about a central axis, and the cover 11 is configured such that when the shut-off valve 16 is in the closed position, the apex of the dome is substantially centered relative to the filling opening 14.

[0073] The cap 11 also includes a reset member 17, such as a reset spring, which is inserted between the cap body 12 and the shut-off valve 16 and configured to reset the shut-off valve 16 to the closed position. Advantageously, the shut-off valve 16 is configured to automatically displace to the open position under the action of water pressure during the filling of the container 4 (overcoming the reset force applied by the reset member 17).

[0074] The cover 11 also includes a sealing device 18 configured to extend around the filling opening 14 and to be inserted when the shut-off valve 16 is in the closed position, and more specifically formed between the cover body 12 and the shut-off valve 16, and for example between the peripheral portions of the cover body and the shut-off valve 16.

[0075] The sealing device 18 is configured to define at least one steam condensation zone 19 when the shut-off valve 16 is in the closed position, in which steam from the inner chamber 5 of the container 4 can condense, thereby sealing the joint area between the cover body 12 and the shut-off valve 16 against steam.

[0076] According to the embodiment shown in the figure, the sealing device 18 is configured to define two steam condensation zones 19 when the shut-off valve 16 is in the closed position, the two steam condensation zones 19 being substantially concentric. However, according to a variation of the invention, the sealing device 18 may be configured to define a single steam condensation zone 19 or more than two steam condensation zones 19.

[0077] like Figure 8 As shown more specifically, the sealing device 18 includes a first annular rib 21 and a second annular rib 22, the first annular rib 21 being configured to extend around the filling opening 14, and the second annular rib 22 extending around the first annular rib 21. Advantageously, the first and second annular ribs 21, 22 are generally cylindrical and substantially concentric with respect to the central axis of the filling opening 14. Thus, the sealing device 18 forms a ribbed joint.

[0078] According to the embodiment shown in the figure, first and second annular ribs 21, 22 are disposed on the cover body 12 and configured to cooperate with the peripheral portion of the shut-off valve 16 when the shut-off valve 16 is in the closed position. Advantageously, the first and second annular ribs 21, 22 extend beyond the lower peripheral edge of the filling opening 14, and the second annular rib 22 extends beyond the apex of the first annular rib, and thus extends beyond the lower longitudinal edge of the first annular rib 21.

[0079] like Figure 8 As shown, the first and second annular ribs 21 and 22 are configured to extend downward from the lower surface of the inner peripheral wall 15 defining the filling opening 14, the lower surface being inclined relative to the horizontal surface when the container 4 is placed on the horizontal surface.

[0080] According to the embodiment shown in the figure, the first steam condensation zone 19 is defined by the first and second annular ribs 21, 22, the inner peripheral wall 15 and the shut-off valve 16, and the second steam condensation zone 19 is defined by the first annular rib 21, the lower peripheral edge of the filling opening 14 and the shut-off valve 16.

[0081] When the shut-off valve 16 is in the closed position, the upper surface of the shut-off valve 16 contacts the lower end of the first annular rib 21, the lower end of the second annular rib 22, and the lower peripheral edge of the filling opening 14, thereby forming the first and second steam condensation zones 19.

[0082] When the water contained in container 4 reaches boiling point, a portion of the steam generated in container 4 flows between the lid body 12 and the shut-off valve 16 in the closed position, and condenses in the first steam condensation zone 19. The condensate formed in the first steam condensation zone 19 remains at least partially within the first steam condensation zone 19, and thus subsequently prevents water vapor from flowing out of the first steam condensation zone 19 and therefore through the filler opening 14. For safety, the sealing device 18 includes a second steam condensation zone 19 to prevent steam from escaping beyond the first steam condensation zone 19 despite its presence.

[0083] Therefore, the sealing device 18 according to the invention avoids any escape of steam through the filling opening 14 and any risk of scalding to the user, without requiring expensive sealing joints. Thus, the sealing device 18 provides increased safety in use to the water heating device 2 according to the invention, while limiting the manufacturing cost of the water heating device 2.

[0084] According to the embodiment shown in the figure, the lid 11 is removable relative to the container 4 and includes a gripping portion 23 configured for user manipulation. Advantageously, the gripping portion 23 is positioned facing the pouring spout 10 relative to the central axis of the filling opening 14.

[0085] The water heating device 2 also includes a fixing device configured to fix the cover 11 to the container 4 in a removable manner, i.e., in a temporary and reversible manner.

[0086] According to the embodiment shown in the figure, the fixing device includes: a plurality of fixing elements 24 (see figure). Figure 3 ), such as retaining pins, these retaining elements 24 are provided on the container 4, and are provided, for example, on the inner periphery of the upper opening 6 of the container 4, and distributed around the central axis A of the container 4; and a plurality of retaining members 25 (see Figure 4 For example, fixing ramps or "L"-shaped fixing grooves are provided on the cover body 12, and for example, on the outer peripheral surface of the cover body 12, and distributed around the central axis of the filling opening 14. Each fixing member 25 can cooperate with a corresponding fixing element 24 to secure the cover 11 to the container 4. Advantageously, the fixing element 24 and the fixing member 25 form a bayonet-type fixing device.

[0087] The water heating device 2 also includes an electromechanical control device comprising: a bimetallic element 26, such as a bimetallic thermostat; and a steam delivery circuit 27 configured to direct steam contained in the inner cavity toward the bimetallic element 26. The electromechanical control device is configured such that the accumulation of steam on the bimetallic element 26 triggers the heating stop of the water heating device 2.

[0088] The bimetallic element 26 may, for example, be disposed in the heating bottom 7 located below the inner cavity 5. In this case, the steam delivery circuit 27 advantageously includes a steam delivery conduit 28, which has an upper end leading to the upper part of the container 4 and a lower end leading to the heating bottom 7. The steam delivery conduit 28 may, for example, partially extend into the grip handle. According to an embodiment of the invention, the bimetallic element 26 may be disposed in the grip handle.

[0089] According to one embodiment of the invention, not shown in the figures, the filling opening 14 may have a through-section that is constant along the central axis of the filling opening 14. Therefore, the filling opening 14 may be defined, for example, by an inner peripheral wall 15 of a cylindrical shape.

[0090] Of course, the present invention is by no means limited to the embodiments described and shown by way of example only. Modifications can be made without departing from the scope of protection of the present invention, especially from the viewpoint of the construction of various elements or by substituting technical equivalents.

Claims

1. A water heating device (2), comprising: - Container (4), which defines a content cavity (5) for containing water, and in which the water is heated; - A lid (11), the lid (11) being configured to close the container (4), the lid (11) comprising: o Cover body (12), the cover body (12) includes a filling opening (14) configured to be fluidly connected to the inner cavity (5), and water can be introduced into the container (4) through the filling opening (14); o. A shut-off valve (16) movable between a closed position and an open position, wherein in the closed position the shut-off valve (16) closes the filling opening (14), and in the open position the shut-off valve (16) releases the filling opening (14) and allows water to fill the container (4); and o Sealing device (18), the sealing device (18) is configured to extend around the filling opening (14) and is inserted between the cover body (12) and the closing valve (16) when the closing position is occupied; The sealing device (18) is characterized in that it is a ribbed joint configured to define at least one steam condensation zone (19) when the shut-off valve (16) is in the closed position, in which steam from the inner cavity (5) of the container (4) can condense.

2. The water heating device (2) according to claim 1, wherein, The sealing device (18) includes at least a first annular rib (21) and a second annular rib (22), the first annular rib (21) being configured to extend around the filling opening (14) and the second annular rib (22) being configured to extend around the first annular rib (21), the first and second annular ribs (21, 22) being configured to partially define the at least one vapor condensation zone (19).

3. The water heating device (2) according to claim 2, wherein, The first annular rib (21) and the second annular rib (22) are disposed on the cover body (12) and configured to extend downward when the container (4) is placed on a horizontal surface.

4. The water heating device (2) according to claim 2 or 3, wherein, The first annular rib (21) and the second annular rib (22) are configured to cooperate with the peripheral portion of the shut-off valve (16) when the shut-off valve (16) occupies the closed position.

5. The water heating device (2) according to any one of claims 2 to 4, wherein, The first and second annular ribs (21, 22) are substantially concentric.

6. The water heating device (2) according to any one of claims 2 to 5, wherein, The sealing device (18) is configured to define at least two steam condensation zones (19) when the shut-off valve (16) is in the closed position, one of the steam condensation zones (19) being at least partially defined by the first and second annular ribs (21, 22) and the shut-off valve (16), and the other of the steam condensation zones (19) being at least partially defined by the first annular rib (21), the lower peripheral edge of the filling opening (14) and the shut-off valve (16).

7. The water heating device (2) according to any one of claims 1 to 6, wherein, The filling opening (14) has a through section that decreases toward the contents cavity (5) of the container (4).

8. The water heating device (2) according to any one of claims 1 to 7, wherein, The shut-off valve (16) has a generally dome shape.

9. The water heating device (2) according to any one of claims 1 to 8, wherein, The shut-off valve (16) is mounted so that it can pivot about the pivot axis (B) on the cover body (12).

10. The water heating device (2) according to any one of claims 1 to 9, wherein, The shut-off valve (16) is positioned facing the lower surface of the cover body (12).

11. The water heating device (2) according to any one of claims 1 to 10, wherein, The lid (11) can be removed relative to the container (4).

12. The water heating device (2) according to any one of claims 1 to 11, wherein, The shut-off valve (16) is configured to automatically shift to the open position under water pressure when the container (4) is filled.

13. The water heating device (2) according to any one of claims 1 to 12, wherein, The lid (11) is configured to be disposed at the upper opening (6) of the container (4) and to close the upper opening (4) when the lid (11) is placed on the container (4), the upper opening (4) and the filling opening (14) being substantially coaxial.

14. The water heating device (2) according to any one of claims 1 to 13, wherein, The cover (11) includes a reset member (17) configured to reset the shut-off valve (16) to the closed position.

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