Lid lock for locking a lid to a lower part of a device for liquids
Patent Information
- Application Number
- PCT/DE2026/100388
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-04-07
- Filing Date
- 2026-03-25
- Publication Date
- 2026-10-01
Smart Images
Figure DE2026100388_01102026_PF_FP_ABST
Abstract
Description
[0001] 25.03.2026 PW / KS / Mr Our reference 25-13-094
[0002] Rahrbach GmbH
[0003] Nordring 62, 42579 Heiligenhaus
[0004] Lid lock for locking a lid to a base of a device for liquids
[0005] The present invention relates to a lid locking mechanism for locking a lid to a lower part of a device for, in particular, hot liquids, especially a pressure cooker, comprising a first locking element, in particular arrangable on the lid, and a second locking element, in particular arrangable on the lower part, which is movable from an unlocked position to a locked position in which it engages with the first locking element in a locking manner. The invention further relates to a device for, in particular, hot liquids, especially a pressure cooker, with a lid locking mechanism, and to a container for holding liquids. In addition, the invention relates to a method for locking a lid, in particular of a device for, in particular, hot liquids, especially a pressure cooker, with a 25.03.2026 Our reference: 25-13-094
[0006] 2
[0007] Lid locking mechanism and a method for locking a lid to a lower part of a device for, in particular hot, liquids, in particular a pressure cooker, with a lid locking mechanism.
[0008] To ensure that liquids, such as food, do not leak from various types of appliances that can hold liquids, for example during cooking, lids are typically used that can be opened and closed as needed. Closing the lid reliably seals the interior of the appliance. To prevent unintentional opening, especially during pressure cooking, lid locks are usually provided that securely lock the lid to the base. In most cases, locking assemblies are used to secure the lid to the base, particularly with locking elements that can be moved from an unlocked to a locked position and interact to prevent the lid from being opened.After the cooking process is complete, the lid lock can then be released and the lid and the inside of the appliance can be opened.
[0009] Due to the high safety requirements for such a lid lock, especially when used in pressure cooking and the associated dangers for users, lid locks that were comparatively complex to manufacture and therefore expensive were frequently used in the past.
[0010] Against this background, the invention aims to achieve a lid lock with a reliable locking mechanism. 25.03.2026 Our reference: 25-13-094
[0011] 3
[0012] This problem is solved in a lid locking mechanism of the type mentioned above by providing a locking element which can be moved from a locking position, in which movement of the second locking element into the locking position is blocked, to a release position, wherein during the closing process of the lid the locking element can be moved into the release position by means of the first locking element.
[0013] This method provides a simple yet reliable lid locking mechanism that is easy and inexpensive to manufacture. A locking element, positioned in a locked position that blocks movement of the second locking element into the locked position, ensures that unwanted movement, and in particular, unintentional locking of the second locking element when the lid is open, is prevented. Only when the locking element moves into a release position can the second locking element be released, thus ensuring the lid is locked to the base. Furthermore, by incorporating a first locking element that moves the locking element into the release position during the lid closing process, an actuation mechanism is provided that guarantees simple and reliable operation of the locking element.
[0014] Especially when used in conjunction with pressure cooking, as is known from pressure cookers, a reliable locking mechanism is essential to reliably prevent injuries to the operator. A essentially two-stage opening process allows the pressure to be released from the appliance and the hot air to escape, after which the lid can be fully opened. During the closing process, it is ensured that the lid is initially closed and then, through the interaction of the first locking element, secured. 25.03.2026 Our reference: 25-13-094
[0015] 4
[0016] The second locking element ensures reliable sealing and locking even under significantly increased stress, such as that caused by cooking pressure. This significantly increases safety.
[0017] A preferred embodiment provides that the second locking element can be arranged in a housing which, in the locked position, can be sealed against the ingress of liquids by the locking element. The housing can be designed as a single unit enclosing both the locking element and the second locking element. The housing can, for example, be made of metal. Furthermore, it has proven advantageous for the housing to be designed in two parts, thus ensuring easy assembly of the internal components, particularly the locking element and the second locking element. For manufacturing, the components can then be inserted into the housing, and the housing can be closed, for example, via a screw connection.The sealing effect of the locking element ensures that, particularly when the lid is open (i.e., when the locking element is in the locked position), the housing is sealed against the ingress of liquids. This protects the internal components, such as the mechanical or electrical parts, and is also important for hygiene reasons. The locking element can thus have a dual function. It can provide a seal to the outside and also prevent unwanted movement of the second locking element from the unlocked to the locked position and vice versa. The locked position can therefore also be understood as a sealing position. 25.03.2026 Our reference: 25-13-094.
[0018] 5
[0019] However, it is not absolutely necessary for the individual components, such as the locking element and / or the second locking element, to be arranged in a housing. These components can, for example, also be part of the lower part itself. In this case, it is advantageous if the locking element seals the lower part to the outside.
[0020] In this context, it is further advantageous if the housing is designed as a component of the base or as a separate component that can be inserted into the base. Alternatively, it is also conceivable that the housing is designed as a component of the lid or as a separate component that can be inserted into the lid. In this case, the first locking element, which would otherwise be located in the lid, can be located on the base and the second locking element on the lid. The housing can advantageously be designed in two parts, so that the elements can be inserted into the housing for assembly and the housing then closed. For a housing designed as a component of the base or lid, it is advantageous to provide a non-removable connection. In this case, the base and the housing form a single unit. In particular, the parts can be manufactured in one piece.In contrast, a separate component that can be inserted into the lower part may preferably have a detachable connection, for example by screws, clamps, or the like, which facilitates easy replacement. A locking housing is preferably provided, which includes parts of the locking mechanism, in particular the second locking element. The locking housing can be inserted into the device, in particular a device housing. Preferably, the locking housing is sealed by the locking element. The locking element and / or the second locking element can be arranged internally, in particular within a housing, in particular a locking housing, and / or within the lower part, in particular the device housing. 25.03.2026 Our reference: 25-13-094.
[0021] 6
[0022] Furthermore, it is advantageous if the housing has an entry opening into which the first locking element can enter during the closing process. The entry opening can be closed and, in particular, sealed by the locking element in the locked position. The entry opening preferably has a shape corresponding to the locking element, so that the locking element completely closes the entry opening in the locked position and, in particular, seals against the ingress of liquids. In the locked position, the seal can be achieved by a positive fit between the entry opening and the locking element. Moreover, the entry opening allows for a defined entry of the first locking element into the housing.
[0023] Furthermore, it is advantageous if the inlet opening, particularly via the sealing element, can be sealed. This prevents the unwanted ingress of liquids, for example during a casting process or the like. The sealing effect can be achieved in particular by a positive fit, especially via a contact seal between the sealing element and the inlet opening of the housing.
[0024] Another embodiment provides that the locking element is designed as a sealing element, in particular as a sealing plunger. The locking element, especially the sealing plunger, can have a locking element head and a locking element rod connected to the locking element head, with the locking element head being arranged inside the entry opening in the locked position. In this way, a locking element that is easy to operate can be specified in a simple manner. By providing a locking element head, a comparatively large contact surface for the first locking element can be provided, and it is not necessary for the entire locking element to be subject to the 25.03.2026 Our reference: 25-13-094
[0025] 7
[0026] The diameter of the inlet opening corresponds to this, so that the overall installation space can be reduced.
[0027] In a further development of the invention, it is proposed that the locking element, in particular the locking element head, has at least a partially conically shaped sealing surface. The locking element, in particular the locking element head, can have chamfered edges, especially in certain areas. It has proven particularly advantageous if only an upper portion of the locking element, in particular the locking element head, has a conical sealing surface. Alternatively, however, embodiments are also conceivable in which the sealing surface is not conical, but, for example, straight. Embodiments are also conceivable in which the sealing surface is designed as a collar, for example, as a slanted collar or a stepped collar. Other shapes and embodiments are also possible, provided they can achieve a sufficient sealing effect.The housing, and in particular the inlet opening, can be designed to create a positive fit between the locking element and the housing for closing and / or sealing purposes. This positive fit achieves a sealing effect. In particular, a contact seal can be created in this way, which can largely ensure that liquids do not penetrate the housing. This can be a sealing system in which the sealing gap between the two surfaces to be sealed is more or less closed by the locking element, which is designed as a sealing element. The sealing effect can be generated by a force, in particular by an upward axial force acting against a spring, which pushes the locking element into the closed position. The sealing surfaces then bear against their sliding surface with a specific contact pressure.In this way, a space-saving and cost-effective solution can be provided. 25.03.2026 Our reference: 25-13-094.
[0028] 8
[0029] In this context, it is also proposed that the locking element, in the locked position, be essentially flush with the top of the housing and / or the base. This prevents unwanted protrusions or the like, thus ensuring that damage, for example from accidental bumping, snagging, or similar occurrences, is prevented.
[0030] Furthermore, it is preferred if a sealing element, in particular a sealing ring, is arranged between the housing and the locking element for sealing purposes. This further enhances the sealing effect. The sealing ring can preferably be located in the area of the locking element head, particularly in the area of the chamfered edges, and further increase the sealing effect. The sealing ring can be arranged coaxially to a central axis of the locking element. It is advantageous if the sealing ring is made of a rubber material.
[0031] Preferably, the locking element is spring-loaded in the locked position. This pushes the locking element upwards in the axial direction when in the locked position, thereby achieving both a locking and a sealing effect. The spring can be arranged, in particular, in the lower region of the locking element, especially around the locking element rod, and be supported against the locking element head.
[0032] It is further advantageous if the locking element is arranged in a receptacle designed to correspond to the locking element, in particular in a spring-loaded manner. The receptacle can have a first section in which the locking element head can be guided. The diameter of the receptacle can correspond to the diameter of the head section. The receptacle can also taper towards the underside of the housing, so that in the lower area there is only a narrower opening. 25.03.2026 Our reference: 25-13-094
[0033] 9
[0034] This results in the guidance of the locking element rod. The diameter of the tapered section can correspond to the diameter of the locking element rod including the spring. The locking element can be mounted in the receptacle accordingly.
[0035] In this context, it is preferred if the housing, particularly in its lower region, has an outlet opening for the discharge of liquids. In particular, the outlet opening can be located at the lower end of the housing. By providing such an outlet opening, any liquid that unintentionally enters the housing, for example due to an incomplete locking mechanism or similar issue, can be drained away. This prevents potential damage caused by liquids accumulating in the housing, such as rust.
[0036] Another embodiment provides that, during the closing process, the locking element can be pressed down against a spring force over the first locking element to move it into a release position. Pressing down the locking element allows it to be moved from the locked position to the release position. This can be achieved by actuating the first locking element, providing a simple yet reliable actuation process. Pressing down the locking element also releases the sealing effect, as the locking element, particularly its head, detaches from the adjacent housing surface. However, a certain degree of sealing can be maintained until the release position is reached. Furthermore, it has proven advantageous for the locking element to be spring-loaded into the locked position.The spring ensures that the locking element is reliably held in the locked position and that it cannot be unintentionally moved into the locked position by external influences. 25.03.2026 Our reference: 25-13-094.
[0037] 10
[0038] The release position is transferred. When the lid is closed and the locking element moves from the locked position to the release position, the force of the spring must first be overcome by the first locking element striking the locking element and by the movement of the lid. In particular, this movement from the locked position to the release position can be considered the first phase of the opening or closing process.
[0039] To ensure reliable locking of the lid, it has proven advantageous to provide two first locking elements and two locking elements, with each first locking element interacting with a locking element. The two first locking elements and / or the two locking elements can preferably be identical and spaced apart from one another. It is preferred that the first locking element and the locking element are located in the front edge region of the lid or the lower part, particularly on the side facing the user. This results in an arrangement on the hinged side of the lid. However, embodiments with a lateral opening are also conceivable. In this respect, it is particularly advantageous if the first locking element and the locking element are located on the opposite side of the hinges.Nevertheless, this arrangement results in a spout area of the appliance, which increases the risk of liquid ingress. Therefore, a reliable seal can be ensured through appropriate design. By providing two locking elements and two locking elements, each located in the outer edge area, reliable locking can be guaranteed both during the cooking process, when the lid is locked, and when open, when the housing is sealed to the outside via the locking element. Furthermore, by providing two 25.03.2026 Our reference: 25-13-094.
[0040] 11
[0041] The first locking elements and two locking elements significantly increase the locking effect compared to just one locking element and one locking element, which is particularly important for pressure cooking applications. This further enhances safety and significantly improves the sealing effect during the cooking process.
[0042] Preferably, the second locking element is arranged between the locking elements. In this way, the second locking element can interact with both the first and second locking elements and reliably lock the cover. In particular, the locking elements can each be arranged in the edge region of the housing, which in this case has two inlet openings and two outlet openings. The locking elements can then each be guided in separate receptacles.
[0043] A multi-point locking mechanism for the lid can be achieved using several first and second locking elements and associated locking elements. In particular, a two-point locking mechanism is present.
[0044] Preferably, at least two secondary locking elements are provided, which are movable by means of a drive, in particular a common one, and by means of a drive transmitter. The drive can be a motor or a manual drive. The drive transmitter can transmit the movement from the drive to the secondary locking element. In the case of two secondary locking elements, two drive transmitters can also be provided. The drive transmitter can have one or more rod elements.
[0045] The drive can include an eccentric element to which at least one drive transmitter is articulated to transmit a rotary movement of the drive. 25.03.2026 Our reference: 25-13-094
[0046] 12
[0047] to convert the initial movement into a linear motion for the second locking element. Preferably, two drive transmitters, in particular rod elements, are articulated to the eccentric element in such a way that a counter-rotating linear motion of the two second locking elements results.
[0048] At least two secondary locking elements and two associated locking elements can be arranged in a common housing. They can form a single assembly. The housing and / or the assembly can be adapted to the device. Different housings and / or assemblies can then be provided for different devices.
[0049] A preferred variant, however, provides that the two second locking elements are part of separate assemblies. These separate assemblies can be arranged in separate housings.
[0050] A primary assembly and a secondary assembly are particularly preferred, wherein the primary assembly has a drive and the secondary assembly can be driven by the drive of the primary assembly via a drive transmitter.
[0051] The two assemblies themselves can therefore be identically designed for different devices. This allows for the identical production and stocking of many primary and secondary assemblies, reducing manufacturing costs. An adapter is preferably provided. Adaptation to the installation situation in the respective device can then be achieved via the adapter, which can, in particular, adjust the length of the drive transmission.
[0052] A particular advantage is that the drive transmission is length-adjustable, especially telescopic. The length change can thus be... 25.03.2026 Our reference: 25-13-094
[0053] 13
[0054] It can be achieved that the drive unit has a telescopic element as an adapter. Alternatively or additionally, the drive unit can have at least one spacer as an adapter. The assemblies can be connected via the spacer. By changing the length, especially with the spacer, the correct distance between the assemblies can be set when installing the cover lock in the device. The spacer thus acts as the adapter.
[0055] The spacer can preferably be integrated into the drive unit via screw, clamp, or magnetic connections. This allows for easy installation.
[0056] Further details of the locking mechanism will be discussed below.
[0057] It is further advantageous if the second locking element comprises a first and a second rod element, which are movable back and forth between a locking position and an unlocking position, particularly in opposite directions. In the locking position, the rod elements can be separated, and in the unlocking position, they can be brought together. The rod elements can preferably be designed to be as narrow as possible in order to save installation space.
[0058] To enable the lid locking mechanism to be installed in various devices, a structurally advantageous embodiment in this context may provide an adapter that can be connected to at least one rod element as a drive transmitter. For this purpose, connecting elements may be provided on one or both rod elements, by means of which a fixed connection between the rod element and the adapter element is possible. Particularly preferably, the rod element may be designed in multiple parts, with the individual parts connected via connecting elements. 25.03.2026 Our reference: 25-13-094
[0059] 14
[0060] The rod elements can be connected to each other. To change the length, an adapter element corresponding to the required length can be inserted and connected to the rod element. The length can be selected depending on the installation space to be bridged. The connection can be made, for example, via a screw, clamp, or magnetic connection. However, a screw connection has proven particularly advantageous, as it ensures a particularly secure hold. Additionally, the rod element and the adapter can be designed with corresponding steps, allowing them to come into contact with each other. This reinforces the fastening and ensures a secure hold. Furthermore, this simplifies the connection process. The adapter and the adapter connection are designed in such a way that the overall shape of the rod is maintained.
[0061] It is preferred if the rod elements and / or the drive transmitter are arranged on an eccentric element. Using such an eccentric element, the movements of the second locking element, and in particular the rod elements and / or the drive transmitter, from the locked position to the unlocked position and vice versa can be carried out in a simple manner. It is particularly advantageous if the rod elements and / or the drive transmitter are coupled to the eccentric element in such a way that they can be moved in a linear direction, in particular transversely to the closing and / or opening direction of the cover, by means of a rotary movement of the eccentric element.
[0062] In the case of a multi-part assembly of a rod element and / or an adapter, it may also be provided that a section is located outside the housing. This further improves accessibility and thus the adaptability of the locking mechanism. 25.03.2026 Our reference: 25-13-094
[0063] 15
[0064] It is further preferred if, during the movement of the second locking element from the locking position to the unlocking position, a tensile force is exerted on the rod elements and, from the unlocking position to the locking position, a compressive force is exerted on them.
[0065] It is further advantageous if the movement of the second locking element, in particular the eccentric element, is motor-controlled. A motor can be provided for this purpose, which is preferably also arranged in the housing. By controlling the motor, the movements of the second locking element can be controlled as required. In particular, the eccentric element can be moved by motor control in such a way that the rod elements move in a linear direction, especially transversely to the closing and / or opening direction of the cover, between the locked and unlocked positions. If the locking element is in the locked position, this linear movement is blocked.If, on the other hand, the locking element is in the release position, a movement can be released and the rod elements can be moved in a linear direction, in particular transversely to the closing and / or opening direction of the cover, in order to initiate a locking process.
[0066] It has proven advantageous if the first locking element has a recess for receiving the second locking element, in particular a rod element. For this purpose, the first locking element can, for example, be designed in the form of a clamp that can receive the rod elements of the second locking element. However, other embodiments of the first locking element are also conceivable. The recess can preferably extend transversely to the longitudinal axis of the first locking element. The longitudinal axis of the first locking element can run in the lid closing direction. The recess can, in particular, be a groove, preferably a keyway, within 25.03.2026 Our reference: 25-13-094
[0067] 16
[0068] The first locking element is designed with a recess. Advantageously, the recess extends over at least one-third, preferably at least half, of the width of the first locking element to ensure secure engagement of the second locking element. The recess allows the second locking element to engage with the first locking element, thus achieving a locking action. The movement of the first locking element during lid closing can be longitudinal, while the movement of the second locking element can be transverse.
[0069] The movement of the locking element preferably proceeds in the direction of the longitudinal axis of the first locking element. Preferably, the longitudinal axis of the first locking element runs in the lid closing direction. This allows for a compact design.
[0070] By receiving the rod elements in the first locking element, a locking process can be initiated, which leads to the sealing locking of the cover to the base. The first and second locking elements can be designed and configured such that the second locking element can come into contact with the first locking element in the last part of the locking movement, particularly in the first phase. This allows a further locking movement, particularly in a second opening or closing phase, to occur only shortly before the cover reaches its fully locked position.
[0071] Closing phase, will be reached.
[0072] Furthermore, it is preferred if the cover can be drawn into the seal by moving the second locking element from the release position to the locking position. It is important that this achieves a seal between the cover and the base. This sealing effect depends on the sealing effect of the locking element against the base. 25.03.2026 Our reference: 25-13-094
[0073] 17
[0074] The housings are differentiated. This results in two sealing processes, each designed to achieve different sealing effects. Specifically, this ensures that the lid is initially closed during the closing process, and then, through the interaction of the first and second locking elements, a reliable seal and locking mechanism are guaranteed even under significantly increased stress, such as that caused by cooking pressure. The first closing phase thus achieves a locking action, while the second closing phase results in a sealing effect, which is crucial for pressure cooking.The essentially two-phase opening process begins with the pressure being released from the device and the hot air escaping (first opening phase), followed by the final release of the lid into a fully open position (second opening phase). Alternatively or additionally, a pressure relief valve, particularly in the lid, can be provided through which the built-up pressure can escape.
[0075] From a design perspective, it has proven advantageous if at least a portion of the recess is chamfered, particularly in the form of a guide chamfer. This can create a wedge groove. In this respect, it can be provided that the second locking element, especially the rod element, is guided in the recess during the closing process. A smooth and reliable locking process can thus be ensured. This chamfer can be particularly advantageous for the second closing phase, in which the cover is drawn into the device seal, or for the first opening phase, in which a locked opening occurs initially, for example, to release pressure from the device. 25.03.2026 Our reference: 25-13-094
[0076] 18
[0077] A preferred embodiment further provides that the second locking element, in particular the ends of the rod elements, engage in the recess of the first locking element in the release position.
[0078] In a further development of the invention, it is proposed that the first locking element be designed such that, in the locked position, it prevents movement of the lid in at least one direction, particularly in the axial direction. This ensures reliable locking of the lid and thus prevents the unintentional escape of liquids. Furthermore, it prevents steam and / or pressure from escaping the device, thus enabling, for example, pressure cooking.
[0079] The first locking element can be particularly advantageously designed as a projection on the lid, extending in the lid's closing direction. Alternatively, the first locking element can be located on the underside of the lid. Positioning the first locking element on the lid also ensures that it does not obstruct the work area when the lid is open. In the open position, the first locking element is then located above and / or further back in the actual work area, thus preventing snagging or tearing off. This increases safety when working with the device.
[0080] Furthermore, it is advantageous if the first locking element extends perpendicularly to the underside of the cover and outwards. In particular, the first locking element can be designed such that no projections or the like are provided that extend in a direction other than the longitudinal axis. In this way, it can be ensured that the first locking element is engaged when closing and / or opening. 25.03.2026 Our reference: 25-13-094
[0081] 19
[0082] The locking element reliably enters the entry opening of the lower part, especially vertically.
[0083] With regard to the design of the first locking element, it is preferred if at least a portion of its surface is rounded, particularly hemispherical. This allows for easy operation that reliably engages the locking element. On the other hand, it also results in a design that reduces the risk of injury and / or damage, for example, from snagging or similar issues. However, designs in which the first locking element has a different shape, such as being angular or flat, are also conceivable.
[0084] The interaction of the locking element with the first and second locking elements reliably prevents unintentional movement of the locked cover. To open the cover, the second locking element must first be moved back into the release position, in which it no longer engages the first locking element. During this time, any pressure that has built up inside the device can safely escape. When the first locking element is in the release position, the cover can be moved freely, i.e., towards the closed or open position. This, in turn, causes the locking element to move into the locked position, typically by means of a spring, such as a return spring, in which the housing is sealed to the outside.
[0085] In the locked position, the second locking element cannot be moved; instead, it can be fixed or blocked by the locking element in the locked position. (25.03.2026 Our reference: 25-13-094)
[0086] 20
[0087] To move the locking element from the locked position to the released position to lock the lid, the locking element must first be moved from the locked position to the released position. It has proven advantageous if the locking element is designed and arranged in such a way that it automatically moves back and forth between the locked and released positions when the lid is opened and closed, particularly by the first locking elements that can be arranged on the lid. In this respect, it is not necessary to actively move the locking element back and forth between the locked and released positions; rather, a corresponding movement of the locking element can be coupled to the movement of the lid. The movement of the locking element between the locked and released positions can thus occur automatically, so that the locking element is always engaged at the correct time.The lid is moved into the locked or unlocked position at a predetermined opening angle. Thus, the closing movement of the lid can be used to move the locking device that blocks the locking element.
[0088] To ensure operational safety, it is further proposed that the various operating positions be monitored by sensors. For this purpose, various sensors can be provided to monitor the different positions or cover positions. In addition, switches can be provided to control operation. In particular, a device control unit can be provided to control the locking and / or unlocking process. The position of the locking element, the first locking element, and the second locking element can be monitored, in particular by means of sensors and / or switches, in order to prevent incorrect positioning or erroneous signals to the control unit. 25.03.2026 Our reference: 25-13-094
[0089] 21
[0090] Preferably, an emergency release mechanism can be provided for manually moving at least one second locking element from outside the housing and / or the device. This allows, for example, manual emergency opening of the cover in the event of a motor failure. An actuating element can be provided that passes through an opening in the housing.
[0091] To solve the aforementioned problem, a device for liquids, especially hot liquids, and / or a pressure cooker, with a lid locking mechanism according to one of the designs described above, is further proposed. This offers the same advantages already explained in connection with the lid locking mechanism. Individual features and configurations can also be applied to a single device in the same way.
[0092] Preferably, the device is a cooking appliance for cooking food. The food typically includes liquid components such as cooking water, cooking oil, broth, and / or sauces. It may also include solid components. Preferably, the lower part of the device is designed as a pot.
[0093] Preferably, the device is a pressure cooker, in particular a pressure cooker, in which overpressure can be generated when the lid is closed and locked. Cooking under overpressure is faster than cooking under normal pressure. This principle is known from pressure cookers. The locking mechanism ensures that the lid remains securely closed despite the overpressure. Overpressure can be defined as a pressure of at least 100 mbar, preferably at least 200 mbar, and particularly preferably at least 300 mbar, relative to the ambient pressure of the device. However, higher overpressures, such as 1 bar or more, can occur during operation. 25.03.2026 Our reference: 25-13-094
[0094] 22
[0095] Furthermore, it is advantageous if a lid seal is arranged on the lid, which enables a reliable seal between the lid and the base when locked. The lid seal can be arranged circumferentially, particularly around the edges of the container. It is also preferred if the base has a seal receptacle that corresponds to the lid seal. This receptacle can be arranged circumferentially around the container. Depending on the application, it may also be possible for the lid seal to be located on the base and the seal receptacle on the lid. Such a lid seal increases safety, especially during pressure cooking.
[0096] A container can be particularly preferred, either detachably inserted into the device or permanently integrated with it. This offers the same advantages as previously described. The container can be designed as a pot, especially a heat-resistant container, and serve to hold food being cooked. The container can be tapered towards the bottom.
[0097] In this context, it is also advantageous if the lid locking mechanism is located on the pouring side of the container. Furthermore, the container can be designed to be lockable using the lid.
[0098] In a method of the type mentioned above, the problem is solved, particularly with a lid locking mechanism, according to one of the embodiments described above. Here, too, the same advantages arise as already described in connection with the lid locking mechanism. All features can be used individually or in combination. 25.03.2026 Our reference: 25-13-094
[0099] 23
[0100] Further details and advantages will be described in more detail below using the exemplary embodiment shown in the figures. This illustrates:
[0101] Fig. 1 shows a perspective view of a device for liquids in a closed state;
[0102] Fig. 2 shows the lid locking mechanism of the device from Fig. 1 together with a locking housing when the lid is open;
[0103] Fig. 3 shows a sectional view through the device from Fig. 1 with the lid locking mechanism when the lid is open;
[0104] Fig. 4 shows the lid locking mechanism when the lid is open, including an exploded view of the eccentric element;
[0105] Fig. 5 shows a sectional view through the device from Fig. 1 with the lid locking mechanism when the lid is closed and locked;
[0106] Fig. 6 shows the lid locking mechanism with the lid closed and locked, including an exploded view of the eccentric element;
[0107] Fig. 7 shows a perspective view of the locking element in the locked position;
[0108] Fig. 8 shows a perspective view of the interaction of the individual components of the lid locking mechanism in the locked position;
[0109] Fig. 9 a perspective view of a device according to Fig. 1 in the open state; 25.03.2026 Our reference: 25-13-094
[0110] 24
[0111] Fig. 10 shows a perspective view of the lid lock with an adapter;
[0112] Fig. 11 shows a perspective view of the lid lock with the adapter removed.
[0113] Figure 1 shows a device 1 for liquids, especially hot liquids, which can be used in many areas. The device 1 can be a cooking appliance, particularly a pressure cooker. Such devices 1 are frequently used in commercial kitchens and are employed, for example, for cooking, frying, boiling, roasting, keeping warm, and / or storing food. Pressure cooking has proven to be a particularly useful application, as it allows food to be cooked more quickly under high pressure. Very high pressures can occur in this process, making a reliable locking mechanism in the closed position essential.
[0114] The device 1 has a lid 2 and a base 3, which is designed in particular as a crucible. The device 1 can be moved, in particular manually, into an open position and also back into a closed position via the lid 2. Fig. 1 shows the lid 2 in the closed position. Fig. 9 shows the device 1 with the lid 2 open.
[0115] Inside the lower part 3 is a container 17, which serves to hold liquids, particularly from cooking ingredients. This container can be detachably connected to the lower part 3, for example, to allow cleaning or removal. Alternatively, other configurations are also conceivable. 25.03.2026 Our reference: 25-13-094
[0116] 25
[0117] in which the container 17 is not detachably connected to the lower part 3 and is, for example, formed in one piece with it.
[0118] To allow the liquids contained within the container 17 to be removed, a pouring opening is provided in the front area of the lower part 3, through which the liquids can be poured out, for example by tilting the device 1. However, this can lead to situations where the liquid does not flow through the pouring opening, but also over the other components of the device 1 and especially the lower part 3. Therefore, a reliable seal of the lid lock 4 is essential.
[0119] To lock the lid 2 to the base 3, it can be moved back and forth from an unlocked position E, in which the lid 2 is open, to a locked position V, in which the lid 2 is closed. The lid 2 has a handle for manual opening and closing. When locked, food can then be prepared, and the lid lock 4 prevents unwanted opening.
[0120] To ensure a secure lid locking mechanism 4, the device according to the invention provides that the lid locking mechanism 4 for locking the lid 2 to the lower part 3 has a first locking element 5.1, 5.2, arranged in particular on the lid 2, and a second locking element 6, arranged in particular on the lower part 3, which can be moved from an unlocked position E to a locked position V, wherein the second locking element 6 interacts with the first locking element 5.1, 5.2 in a locking manner. 25.03.2026 Our reference: 25-13-094
[0121] 26
[0122] To actuate the lid lock 4, a locking element 7.1, 7.2 is provided, which can be moved from a locked position S, in which movement of the second locking element 6 into the locked position V is blocked, to a release position F, whereby during the closing process of the lid 2, the locking element 7.1, 7.2 is moved into the release position by means of the first locking element 5.1, 5.2. The movement of the locking element 7.1, 7.2 always proceeds in direction D of the longitudinal axis L of the first locking elements 5.1, 5.2 when the lid is closed.
[0123] In this way, a reliable lid locking mechanism 4 can be specified, which is simple in design but at the same time offers reliable protection against the ingress of liquids. Details of the locking mechanism will be discussed in detail below:
[0124] Figures 2 to 4 show lid locks 4 in which the locking element 7.1, 7.2 is in the locked position. As can be seen, two locking elements 7.1, 7.2 are provided in the present embodiment, thus ensuring reliable locking. However, embodiments with more or fewer locking elements 7.1, 7.2 are also conceivable.
[0125] Figure 2 shows an embodiment in which the locking elements 7.1, 7.2 and the second locking element 6 are arranged in a housing 8. The housing 8 serves to protect against external influences and can be either detachably or permanently connected to the lower part 3. In Figure 2, the housing 8 is designed as a locking housing, which is inserted into an opening of the device housing and, in particular, screwed in place. 25.03.2026 Our reference: 25-13-094
[0126] 27
[0127] As can be further seen, the locking elements 7.1, 7.2 are located in a receptacle 16.1, 16.2, the receptacle 16.1, 16.2 having a shape corresponding to the locking element 7.1, 7.2. The locking element 7.1, 7.2 is designed in the manner of a sealing plunger, comprising a locking element head 7.1.1, 7.2.1 and a locking element rod 7.1.2, 7.2.2 connected to the locking element head 7.1.1, 7.2.1. The locking element head 7.1.1, 7.2.1 is guided in the upper region of the receptacle 16.1, 16.2, the size and, in particular, the diameter of the receptacle 16.1, 16.2 in its upper region corresponding to the diameter of the locking element head 7.1.1, 7.2.1. Towards the underside of the housing 8, the receptacle 16.1, 16.2 tapers so that its width corresponds only to the diameter of the locking element rod 7.1.2, 7.2.2 and a spring 13.1, 13.2 arranged around it.
[0128] When the locking element 7.1, 7.2 is actuated, in particular via the first locking element 5.1, 5.2, the locking element 7.1, 7.2 is moved back and forth axially in the receptacle 16.1, 16.2. In this way, the locking element 7.1, 7.2 can be moved back and forth between a locked position S, in which the second locking element 6 is blocked, and a released position F, in which the second locking element 6 can be moved.
[0129] In addition to this locking effect of the second locking element 6, the locking element 7.1, 7.2 also serves as a sealing element, which seals the housing 8 against the ingress of liquids.
[0130] As shown in detail in Fig. 7, the locking element head 7.1.1, 7.2.1 can have a conical shape, at least in some areas. This results in sealing surfaces 11.1, 11.2, with sealing surface 11.1 being located on the locking element 7.1, 7.2 and sealing surface 11.2 being located on the housing wall. Since the locking element 7.1, 7.2 is actuated by the springs 13.1, 13.2, our reference: 25-13-094
[0131] 28
[0132] When spring-loaded, the locking element 7.1, 7.2 is pressed axially upwards in the locking position S, particularly towards the outside of the lower part, so that the force and the contact of the sealing surfaces 11.1, 11.2 create a positive fit, resulting in a contact seal. The two surfaces 11.1, 11.2 lie flat against each other, preventing the ingress of liquids. Alternatively, the locking element head 7.1.1, 7.2.1 can also have a different shape, in which case it may be necessary to provide an additional sealing element 12. This could, for example, be a sealing ring 12, which is arranged between the locking element head 7.1.1, 7.2.1 and the housing 8. In the locking position S, the locking element head 7.1.1, 7.2.1 closes.1 essentially flush with the top of the lower part 3, so that protrusions or the like can be avoided which could be damaged, for example, by getting caught on something.
[0133] To move the lid lock 4 into a locking position V, the first locking elements 5.1, 5.2 are provided, which in the present embodiment are designed as clamps attached to the lid 2. The first locking elements 5.1, 5.2 are each designed as a projection arranged on the underside of the lid 2. By arranging the first locking elements 5.1, 5.2 on the lid 2, it can also be ensured that the first locking elements 5.1, 5.2 are not in the way when open. In the pivoted position, the first locking elements 5.1, 5.2 are then located above and / or further back in the actual working area, thus preventing snagging or tearing off. This increases safety.
[0134] As can be further seen, the first locking elements 5.1, 5.2 point outwards perpendicular to the top of the cover 2 and have a cylindrical shape with a rounded cap at the top. Sun 25.03.2026 Our reference: 25-13-094
[0135] 29
[0136] No protrusions or similar features arise that could present additional obstacles or problem areas. This ensures that, when closing and / or opening, the first locking elements 5.1, 5.2 reliably engage, particularly vertically, in the entry openings 9.1, 9.2. On the other hand, a design can also be achieved that reduces the risk of injury and / or damage, for example, from snagging or similar issues.
[0137] As the figures show, the first locking elements 5.1, 5.2 are hemispherical in their lower region and also have a recess 15.1, 15.2, in particular a groove. This recess serves to receive the second locking element 6, and in particular the locking element rods 6.1, 6.2, in the locked position V. The recess 15.1, 15.2, in particular the groove, extends transversely, in particular perpendicularly, to the longitudinal axis L of the first locking element 5.1, 5.2 and / or to the lid closing direction D. The engagement of the second locking element rods 6.1, 6.2 in the recesses 15.1, 15.2 results in a locking action. The recess 15.1, 15.2 has a chamfered wall, in particular a guide chamfer, in which the second locking element 6, and in particular the locking element rods 6.1, 6.2, can be guided. The recess 15.1, 15.2 is wedge-shaped.
[0138] When the lid 2 is closed, the movement of the lid 2 moves the first locking elements 5.1, 5.2 downwards towards the lower part 3 until they, in particular their round caps, come into contact with the locking element 7.1, 7.2, which constitutes the first phase of the closing process. The lid closing movement and the longitudinal axis L of the first locking element 5.1, 5.2 run in the same direction D. The closing movement then engages the locking elements. 25.03.2026 Our reference: 25-13-094
[0139] 30
[0140] 7.1, 7.2 are pressed down axially, particularly against the force of the springs 13.1, 13.2, and guided in the receptacle 16.1, 16.2. The movements of the first locking elements 5.1, 5.2 and the locking elements 7.1, 7.2 also proceed along the same axis L. By pressing down the locking elements 7.1, 7.2, the locking element 7.1, 7.2 is moved into a release position F, in which the second locking element 6 can then be moved linearly.
[0141] For this purpose, the second locking element 6 is designed such that it has a first rod element 14.1 and a second rod element 14.2, which are movable relative to each other, in particular transversely to the closing and / or opening direction D of the cover. The first rod element 14.1 can be designed as a first locking element rod 6.1 and the second rod element 14.2 as a second locking element rod 6.2, or form part of them. In addition, an eccentric element 18 is provided on which the first and second rod elements 14.1, 14.2, or the locking element rods 6.1, 6.2, are arranged. By actuating the eccentric element 18, in particular with the aid of a motor 19, the rod elements 14.1, 14.2 and the locking element rods 6.1, 6.2 are displaced relative to each other and thus moved via the locking elements 7.1, 7.2 in the direction of the first locking elements 5.1, 5.2. The ends of the rod elements 14.1, 14.2 and 6.2 are then moved towards the locking elements 7.1, 7.2.The locking element rods 6.1, 6.2 then engage in the recess 15.1, 15.2 of the first locking element 5.1, 5.2 and are drawn into the seal via the guide chamfer of the recess 15.1, 15.2, thus creating a locking state. The interlocking action then achieves a locking connection.
[0142] The length of the first locking element 5.1, 5.2 projecting from the cover 2 along the longitudinal axis L essentially corresponds to the distance traveled by the locking element 7.1, 7.2 during the closing process. 25.03.2026 Our reference: 25-13-094
[0143] 31
[0144] The first locking element 5.1, 5.2 can be functionally divided into two sections: a locking section having the recess 15.1, 15.2, and a head section, in particular rounded, which comes into contact with the locking element 7.1, 7.2. Both sections connect essentially seamlessly and / or directly to one another. Both sections extend in the direction of the common longitudinal axis L of the first locking element 5.1, 5.2. The head section represents a direct extension, in particular along the longitudinal axis L, of the locking section, especially continuing the outer contour in the direction of the longitudinal axis L. The first locking element 5.1, 5.2 thus has an overall straight shape. In particular, it has no angled contour, which increases security and ease of cleaning.
[0145] The closing process can be divided into two phases. The first phase involves actuating the locking elements 7.1 and 7.2 into the release position F, in which the rod elements 14.1 and 14.2, or the locking element rods 6.1 and 6.2, come into contact with the first locking elements 5.1 and 5.2, thus achieving an initial locking position. The second phase then leads to complete locking and, in particular, to a complete seal between the lid 2 and the base 3. In this second phase, the lid 2 is drawn into the seal, ensuring safe operation even during high-pressure cooking, as is common with pressure cookers.
[0146] An alternative embodiment of the lid lock 4 is shown in Figures 10 and 11, which allows flexible installation of the lid lock 4 in a variety of devices 1, but can also be installed in the device shown in the other figures. (Only deviations are mentioned; otherwise, the components are designed as in the other figures.) 25.03.2026 Our reference: 25-13-094
[0147] 32
[0148] For the two-point locking mechanism, two separate assemblies are now provided: a primary assembly 26.2 (master) and a secondary assembly 26.1 (slave). Both assemblies are arranged in separate housings 8.1 and 8.2. The primary assembly 26.2 includes, among other things, the second locking element 6.2, the locking element 7.2, and the drive 19, which is designed as a motor. The secondary assembly 26.1 includes the second locking element 6.1 and the locking element 7.1, but no drive of its own. Instead, the drive 19 is used as a common drive for both assemblies. The movement of the drive 19 is transmitted via the drive transmitter 14.1 to the second locking element 6.1 of the secondary assembly 26.1.
[0149] To enable the assemblies to be used in different devices, an adapter 23 is provided. The adapter 23 acts as a spacer. Depending on the installation space of the respective device, the correct distance between the assemblies 26.1 and 26.2 can be adjusted using the adapter 23. Alternatively or additionally, a telescopic element or other length-adjusting elements could be used as the adapter 23 to achieve the desired length change.
[0150] As can be seen in Fig. 10, one or both of the rod elements 14.1, 14.2 can be designed in multiple parts. In the present embodiment, the rod element 14.1 is divided into two partial rod elements 14.1.1, 14.1.2. These partial rod elements 14.1.1, 14.1.2 can be joined together to form a single rod element 14.1 as required. It is possible to design the partial rod elements 14.1.1, 14.1.2 in different lengths depending on the device. However, it has proven advantageous if the partial rod elements 14.1.1, 14.1.2 have a predetermined length and can be connected as needed by an adapter designed as a spacer 2325.03.2026 Our reference: 25-13-094
[0151] 33
[0152] The adapter 23 can be supplemented with at least one rod element 14.1, 14.2 and, in particular, the partial rod elements 14.1.1, 14.1.2. For this purpose, connecting elements can be provided on one or both partial rod elements 14.1.1, 14.1.2, by means of which a fixed connection between the partial rod elements 14.1.1, 14.1.2 and the adapter 23 is possible. The connection can be made, for example, via screw, clamp, or magnetic connections. In the present example, the partial rod elements 14.1.1, 14.1.2 and the adapter 23 are connected to each other by screws 25.
[0153] As further shown in Figures 10 and 11, additional corresponding steps 24 can be provided on the partial rod elements 14.1.1, 14.1.2 and / or the adapter element 23, allowing the partial rod elements 14.1.1, 14.1.2 and the adapter element 23 to come into contact with each other. This reinforces the fastening and ensures a secure hold. Furthermore, it simplifies the connection process. The rod shape is essentially retained.
[0154] In the case of a multi-part assembly of the rod elements 6.1, 6.2 and / or an adapter element 23, it may also be provided that a portion of these elements is arranged outside the housing 8. In this respect, two housing parts 8.1, 8.2 may result. This further improves the accessibility and thus the adaptability of the locking mechanism.
[0155] The rod element 14.1 can also be referred to as a drive transmitter, since it transmits the movement from the drive 19 to the second locking element 6.1. 25.03.2026 Our reference: 25-13-094
[0156] 34
[0157] Furthermore, an emergency release 27 is provided on the eccentric element 18. For this purpose, an actuating element 29 is arranged on the eccentric element 18 and leads outwards through a housing opening 28. In the event of a failure of the drive 19, the actuating element 29, in particular an actuating pin, can be moved manually so that the eccentric element 18 rotates and, via the drive transmitters 14.1 and 14.2, the second locking elements 6.1, 6.2 are then also moved into the unlocked position, so that the cover 2 can be opened.
[0158] As shown in Fig. 9, a lid seal 21 can be provided on the lid 2, which, in the closed state, engages in a sealing receptacle 221 arranged on the lower part 3. The lid lock 4 is located outside the lid seal 21. The lid seal 21 and the sealing receptacle 22 are arranged around the container 17, so that when the lid 2 is closed, an additional seal is created. This seal is also drawn into the seal during the closing process by the interaction of the first locking elements 5.1, 5.2 with the locking elements 7.1, 7.2 and the second locking element 6, thus enabling a reliable seal even during pressure cooking processes.
[0159] For the unlocking process, this process is carried out in reverse order. For this purpose, the motor 19 can be supplied with a control signal, which generates a return movement of the rod elements 14.1, 14.2 or the locking element rods 6.1, 6.2 from the first locking element 5.1, 5.2. The first locking element 5.1, 5.2 is thus released and can be moved out of the receptacle 16.1, 16.2 by moving the cover into an open position. The force of the springs 13.1, 13.2 then moves the locking element 7.1, 7.2 back upwards, thus re-establishing the locked position S. 25.03.2026 Our reference: 25-13-094
[0160] 35
[0161] The opening process can also be divided into two phases. In the first phase, the rod elements 14.1, 14.2 and the locking element rods 6.1, 6.2 slide out along the guide slope of the recess 15.1, 15.2 of the first locking elements 5.1, 5.2, allowing the lid 2 to open slightly. The lid 2 remains locked in this position. However, it is possible for the pressure that built up during the cooking process to escape without the lid 2 opening unintentionally and thus posing a safety risk to the user. In the second phase, the rod elements 14.1, 14.2 and the locking element rods 6.1, 6.2 are then moved back to their original positions, allowing the lid 2 to open completely.
[0162] Fig. 8 illustrates once again the construction of the first locking element 5.1, 5.2, in which the ends of the rod elements 14.1, 14.2 or the locking element rods 6.1, 6.2 of the second locking element 6 are guided in the recess 15.1, 15.2 in order to assume the locking position V.
[0163] As the figures further show, the housing 8 has an inlet opening 9.1, 9.2 into which the first locking element 5.1, 5.2 can enter during the closing process. Furthermore, an outlet opening 10.1, 10.2 is provided in the lower part of the housing 8, from which liquids can escape if necessary. It is quite possible that the locking element 7.1, 7.2 does not close completely, and liquids may still enter the housing 8. To prevent damage or permanent contamination, these liquids can then escape from the housing 8 via the outlet openings 10.1, 10.2. 25.03.2026 Our reference: 25-13-094
[0164] 36
[0165] As a general rule, the elements that, according to this description, are assigned to the cover 2 or the base 3, can conversely also be assigned to the base 3 or the cover 2. Thus, the first locking elements 5.1, 5.2, in particular the hinges, can be located on the base 3, and the second locking elements 6 and the locking elements 7.1, 7.2, etc., can be located on the cover 2.
[0166] Furthermore, the locking mechanism 4 can also be designed differently than with the depicted clamps. For example, a locking mechanism 4 in the form of a mushroom-head locking bolt is also possible.
[0167] With the lid locking mechanism 4 described above, a reliable locking of a lid 2 to a base 3 of a device for liquids 1 can be achieved in a simple manner. Complex lid locking mechanisms 4 are therefore no longer necessary. 25.03.2026 Our reference: 25-13-094
[0168] 37
[0169] Reference symbol:
[0170] 1 device
[0171] 2 lids
[0172] 3 lower part
[0173] 4 Lid lock
[0174] 5.1 First locking element
[0175] 5.2 First locking element
[0176] 6 Second locking element
[0177] 6.1, 6.2 Second locking rod element 7.1 Locking element
[0178] 7.2 Locking element
[0179] 7.1.1 Locking element head
[0180] 7.2.1 Locking element head
[0181] 7.1.2 Locking element rod
[0182] 7.2.2 Locking element rod
[0183] 8 cases
[0184] 9.1, 9.2 Entrance opening
[0185] 10.1, 10.2 Outlet opening
[0186] 11.1, 11.2 Sealing surface
[0187] 12 Sealing element
[0188] 13.1, 13.2 Spring
[0189] 14.1 First rod element
[0190] 14.1.1 First partial rod element
[0191] 14.1.2 Second partial rod element
[0192] 14.2 Second rod element
[0193] 15.1, 15.2 Exclusion
[0194] 16.1, 16.2 Recording
[0195] 17 containers
[0196] 18 eccentric elements
[0197] 19 Motor 25.03.2026 Our reference: 25-13-094
[0198] 20 Sensor
[0199] 21 Lid seal
[0200] 22 Seal holder 23 Adapter
[0201] 24 levels
[0202] 25 Connecting element 26.1 Secondary assembly 26.2 Primary assembly 27 Emergency release
[0203] 28 Housing opening
[0204] 29 Actuating element
[0205] F Release position
[0206] S Locking position
[0207] V Locking position E Unlocking position L Longitudinal axis
[0208] D direction
Claims
March 25, 2026 Our reference: 25-13-094 39 Patent claims:
1. Lid locking device (4) for locking a lid (2) with a lower part (3) of a device (1) for liquids, in particular a pressure cooker, comprising a first locking element (5.1, 5.2), in particular arranged on the lid, and a second locking element (6), in particular arranged on the lower part, which is movable from an unlocking position to a locking position in which it engages in a locking manner with the first locking element (5.1, 5.2), characterized you rc h a locking element (7.1, 7.2) which can be moved from a locking position, in which movement of the second locking element (6) into the locking position (V) is blocked, into a release position (F), wherein during the closing process of the cover (2) the locking element (7.1, 7.2) can be moved into the release position (F) by means of the first locking element (6).
2. Lid locking mechanism according to claim 1, characterized in that the second locking element (6) can be arranged in a housing (8) which can be sealed against the ingress of liquid by the locking element (7.1, 7.2) in the locked position (S).
3. Lid locking mechanism according to claim 2, characterized in that the housing (8) has an entry opening (9.1, 9.2) into which the first locking element (5.1, 5.2) can enter during the closing process.
4. Lid locking mechanism according to claim 3, characterized in that the inlet opening (9.1, 9.2) is sealable, in particular via the locking element (7.1, 7.2). 25.03.2026 Our reference: 25-13-094 40 5. Lid locking mechanism according to one of the preceding claims, characterized in that a locking element head (7.1.1, 7.2.1) of the locking element (7.1, 7.2) has at least partially a conical sealing surface (11.1).
6. Lid locking mechanism according to one of the preceding claims, characterized in that the housing (8), in particular in the lower area, has an outlet opening (10.1, 10.2) for the outlet of liquids.
7. Lid locking mechanism according to one of the preceding claims, characterized in that the locking element (7.1, 7.2) can be pressed down against a spring force over the first locking element (5.1, 5.2) during the closing process to move into a release position (F).
8. Lid locking mechanism according to one of the preceding claims, characterized by two first locking elements (5.1, 5.2) and two locking elements (7.1, 7.2), wherein a first locking element (5.1, 5.2) interacts with a locking element (7.1, 7.2).
9. Lid locking mechanism according to claim 8, characterized by two second locking elements (6.1, 6.2) which are movable by means of a, in particular common, drive, in particular a motor (19), and by means of a drive transmitter, in particular rod elements (14.1, 14.2).
10. Lid locking mechanism according to claim 9, characterized in that the two second locking elements (6.1, 6.2) are part of separate assemblies (26.1, 26.2). 25.03.2026 Our reference: 25-13-094 41 11. Lid locking mechanism according to claim 10, characterized in that the separate assemblies (26.1, 26.2) have separate housings (8.1, 8.2).
12. Lid locking device according to one of the preceding claims, characterized by a primary assembly (26.2) and a secondary assembly (26.1), wherein the primary assembly (2) has a drive (19) and the secondary assembly (26.1) can be driven by the drive (19) of the primary assembly (26.2) by means of a drive transmitter (14.1).
13. Lid locking mechanism according to one of the preceding claims, characterized in that a drive transmitter (14.1) is length-variable.
14. Lid locking mechanism according to one of the preceding claims, characterized in that a drive transmitter (14.1) has an adapter (23) for length adjustment, in particular a spacer.
15. Lid locking mechanism according to one of the preceding claims, characterized by an emergency release (27) for manual movement of the at least one second locking element (6.1, 6.2).
16. Lid locking mechanism according to one of the preceding claims, characterized in that the second locking element (6) comprises a first and a second locking rod element (6.1, 6.2, 14.1, 14.2) which are movable back and forth between a locking position (V) and an unlocking position (E), in particular in opposite directions. 25.03.2026 Our reference: 25-13-094 42 17. Lid locking mechanism according to claim 16, characterized in that the rod elements (6.1, 6.2, 14.1, 14.2) are arranged on an eccentric element (18), wherein the rod elements (6.1, 6.2, 14.1, 14.2) are coupled to the eccentric element (18) in such a way that they can be moved in a linear direction, in particular in the opposite direction, by means of a rotational movement of the eccentric element (18).
18. Lid locking mechanism according to one of the preceding claims, characterized in that the first locking element (5.1, 5.2) has a recess (15.1, 15.2), in particular a groove, for receiving the second locking element (6), in particular the rod element (6.1, 6.2, 14.1, 14.2).
19. Lid locking mechanism according to one of the preceding claims, characterized in that at least a partial surface of the recess (15.1, 15.2) is chamfered, in particular in the manner of a guide chamfer.
20. Lid locking mechanism according to one of the preceding claims, characterized in that the second locking element (6), in particular the rod element (6.1, 6.2, 14.1, 14.2), is guided in the recess (15.1, 15.2) during the closing process.
21. Lid locking mechanism according to one of the preceding claims, characterized in that the second locking element (6), in particular the ends of the rod elements (6.1, 6.2, 14.1, 14.2), engage in the recess (15.1, 15.2) of the first locking element (5.1, 5.2) in the release position (F).
22. Lid locking mechanism according to one of the preceding claims, characterized in that the movement of the locking element (7.1, 7.2) in direction (D) of the longitudinal axis (L) of the first 25.03.2026 Our reference: 25-13-094 43 The locking element (5.1, 5.2) runs.
23. Lid locking mechanism according to one of the preceding claims, characterized in that the longitudinal axis (L) of the first locking element (5.1, 5.2) runs in the lid closing direction (D).
24. Device for liquids, in particular pressure cooking device, with a lid locking mechanism (4) according to one of the preceding claims.
25. Device according to claim 24, characterized by a container (17) for receiving liquids, which is designed to be removable in the device (1) or to be inseparably connected to the device (1).
26. Device according to one of claims 24 or 25, characterized in that the lid locking mechanism (4) is arranged on the pouring side.
27. Method for locking a lid (2) with a lower part (3) of a device (1) for liquids, in particular a pressure cooker, with a lid locking mechanism (4) comprising a first locking element (5.1, 5.2), in particular arranged on the lid, and a second locking element (6), in particular arranged on the lower part, which is moved from an unlocking position (E) to a locking position (V), in which it locks together with the first locking element (5.1, 5.2), ge ke nnzeichnetdu rc h a locking element (7.1, 7.2) which is moved from a locking position (S) in which movement of the second locking element (6) into the locking position (V) is blocked, into a release position (F), wherein during the closing process of the cover (2) the locking element (7.1, 7.2) is moved into the release position (F) by means of the first locking element (6).