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CN-116829033-B - Device for heating a liquid

CN116829033BCN 116829033 BCN116829033 BCN 116829033BCN-116829033-B

Abstract

An apparatus (10) for heating a liquid comprises a container (11) and heating means (12), the apparatus (10) further comprising a drive system (13) configured to drive a plurality of different types of lids (14, 15) which may be accommodated on the container (11).

Inventors

  • Renzo Masong
  • Lu Ka.jialina
  • Silvio Vicantine

Assignees

  • 德隆奇电器单一股东有限责任公司

Dates

Publication Date
20260508
Application Date
20211215
Priority Date
20201217

Claims (15)

  1. 1. An apparatus (10) for heating a liquid, the apparatus comprising a container (11), means (12) associated with the container (11) for heating a liquid, and an exchangeable cover (14, 15), the cover comprising at least a first rotatable cover (14) and at least a second safety cover (15), characterized in that the apparatus comprises a drive system (13) which can be selectively driven to interact with at least the first rotatable cover (14) and at least the second safety cover (15), the second safety cover being provided with a valve (19), both of which can be alternatively accommodated on the container (11), wherein the drive system (13) comprises at least one activation element (16) and at least one actuator (17, 18) which is located outside the cover (14, 15), which is located inside the cover (14, 15) and interacts with the activation element (16), wherein the first rotatable cover and the second safety cover are provided with a valve (19), both of which can be accommodated on the container (11), wherein the drive system (13) comprises at least one activation element (16) and at least one actuator (17, 18), which is located outside the cover (14, 15), which is located inside the cover (14, 15), and which is located inside the cover (16), and which is located inside the shaft (11), wherein the shaft (25) and which is located inside the container (11) 18 Independently of the activation element (16) and comprising a lever, one end of which is configured to cooperate with the shaft (25), and wherein the activation element (16) is driven, with the first rotatable lid (14) being opened with respect to the container (11), and with the second safety lid (15) the valve (19) being at least partially opened, irrespective of the position or inclination of the container (11).
  2. 2. The device (10) according to claim 1, characterized in that the activation element (16) is associated with elastic return means (23).
  3. 3. The apparatus (10) according to claim 1, characterized in that the container (11) comprises a guide ring (26) for the shaft (25).
  4. 4. The device (10) according to claim 1, wherein the first rotatable lid (14) associated with the actuator (17) is rotatable about a hinge (28) and the actuator (17) is configured to engage with the container (11) such that the first rotatable lid (14) is kept in a closed state and the activation element (16) is configured to act on the actuator (17) to release the first rotatable lid (14) from the container (11) in an open state of the container (11).
  5. 5. The device (10) according to claim 1, wherein the actuator (17) is configured to engage and abut against a flange (29) in a closed position of the first rotatable lid (14).
  6. 6. The device (10) according to claim 4, characterized in that it comprises a hinge mechanism (32) positioned between the actuator (17) and the activation element (16), the hinge mechanism being configured to allow the actuator (17) to move backwards and to open the first rotatable lid (14) upon actuation of the activation element (16).
  7. 7. The apparatus (10) of claim 6, wherein the hinge mechanism (32) includes a pair of connecting rods (33, 34) rotatably constrained on opposite sides of a disc (35) rotatably attached to the interior of the first rotatable lid (14).
  8. 8. The device (10) according to claim 6 or 7, wherein the hinge (28) comprises elastic means (37) configured to allow automatic opening of the first rotatable lid (14) when the actuator (17) is released from the container (11).
  9. 9. The device (10) according to claim 1, characterized in that the valve (19) comprises a shutter (39), and the activation element (16) is configured to push the actuator (18) towards the shutter (39) to allow the valve (19) to be at least partially opened.
  10. 10. The device (10) according to claim 9, characterized in that in each use condition the actuator (18) is engaged with the shutter (39).
  11. 11. The device (10) according to claim 9 or 10, characterized in that said shaft (25) and said shutter (39) move axially along axes parallel and/or coaxial to each other.
  12. 12. The device (10) according to claim 9, characterized in that the second safety cover (15) comprises a substantially L-shaped duct (44) provided with an inlet (45) in a substantially vertical first section (44 a) and with an outlet (46) in a substantially horizontal second section (44 b), and in that the shutter (39) moves axially in the second section (44 b).
  13. 13. Device (10) according to claim 9, characterized in that said valve (19) comprises elastic return means (40) which cause the shutter (39) to close automatically when the activation element (16) is released by the user.
  14. 14. The device (10) according to claim 1, characterized in that it is provided with a fluid-tight means (41) positioned between the container (11) and the second safety lid (15).
  15. 15. A method of manufacturing an apparatus (10) for heating a liquid, the method comprising providing a container (11) which is substantially universal and provided with means (12) for heating the liquid in the container (11), and providing a drive system (13) which can be selectively driven to interact with a plurality of different types of lids (14, 15) which can be alternatively accommodated on the container (11), the plurality of different types of lids comprising at least a first rotatable lid (14) and at least a second safety lid (15), the second safety lid being provided with a valve (19), wherein the drive system (13) comprises at least one activation element (16) and at least one actuator (17, 18) which is located outside the lids (14, 15), which is drivable by a user, which is located inside the lids (14, 15) and cooperates with the activation element (16), wherein the activation element (16) comprises a push button (24) and a shaft (25), which is located inside the container (11), and wherein the drive shaft (17) is located inside the container (11), one end of the lever is configured to cooperate with the shaft (25) and wherein the activation element (16) is driven, opening the first rotatable lid relative to the container (11) in case of the first rotatable lid (14) and at least partially opening the valve (19) in case of the second safety lid (15), irrespective of the position or inclination of the container (11).

Description

Device for heating a liquid Technical Field The present invention relates to a device for heating a liquid, such as for example an electric kettle or the like for water or other liquids. The invention also relates to a method of manufacturing a device for heating a liquid. Background of the invention It is known that devices for heating a liquid, such as for example electric kettles, may comprise a container containing the liquid to be heated and heating means, typically contained at the base of the device. The heating means may comprise, for example, one or more resistors housed in the base of the device, which may be connected to a distribution power supply if required. The container has an aperture in the top to allow filling of the liquid to be heated, which aperture may be closed by two or more types of lids. There are generally two most common types of lids. A first type of lid is provided, hinged on one side of the container and adapted to assume a lowered position for closing the aperture of the container and a raised position for opening the container. The container may comprise a container mouth through which the heated liquid flows, the container mouth normally remaining open in both the lowered position and the raised position of the lid. Typically, the lid is associated with a locking system in a lowered position, which the user can act on, for example by means of a button, in such a way as to allow the lid to be released from the container and then raised by rotating the lid about the hinge. The second type of lid, in particular for electric kettles, is a hingeless safety lid which is normally received in a sealed manner over an aperture in the top. The cover is provided with opening and closing valves associated with respective actuation systems, which can be actuated by means of dedicated buttons. Typically, to return the valve to the closed state, a dedicated button needs to be acted upon again. The safety caps are also equipped with additional buttons that enable the safety caps to be disengaged from the containers in which they are housed. Thus, known devices for heating liquids, depending on the type of cap they need to contain, require the provision of suitable containing means for the cap, as well as suitable systems and mechanisms to unlock and lock the cap in one case and to open and close the valve in the other case. Obviously, each known heating device needs to have specific constructional features in order to be suitable for accommodating one or another type of cap and one or another type of locking and unlocking system or opening and closing system of the valve delivering the liquid. In case the lid is provided with a delivery valve, the valve may be inadvertently opened, causing safety problems for the device, e.g. leakage of liquid such as boiling from the container. Thus, in general, the devices for heating liquids of the type described above are generally not very flexible in terms of possible use, the structure of the device is complex and the safety of the device is also to be improved. Document EP2483745 describes various solutions for a device for heating a liquid, comprising a safety cap provided with a delivery valve or a cap hinged in the central region of the liquid container. However, the described solutions are independent of each other and cannot be combined with each other. Furthermore, in the case of a safety cap, the valve can only be opened when the device for heating the liquid is tilted to the liquid pouring position. Documents GB2486229a and DE29902995U1 describe other devices of known type for heating liquids. Thus, there is a need for an improved device for heating a liquid that overcomes at least one of the drawbacks of the prior art. In particular, it is an object of the present invention to provide a device for heating a liquid (e.g. an electric kettle) which is efficient, safe and flexible in use. Another object of the present invention is to provide a device for heating liquids in which different types of lids can be associated with the same liquid container and which is characterized by a simple construction and use. Another object of the invention is a method of manufacturing a device for heating a liquid, which device is basically provided with a universal container, to which different types of lids (e.g. rotatable lids, safety lids or other lids) can be associated, according to different usage needs. The applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art and to obtain these and other purposes and advantages. Disclosure of Invention The invention is set forth and characterized in the independent claims. The dependent claims describe other features of the invention or variants to the main inventive idea. According to the above object, an apparatus for heating a liquid according to the present invention comprises a container for a liquid and a device for heating the liquid in the cont