Open lid lock structure and rice cooker

Abstract

The present application relates to an open lid lock structure and a rice cooker. The open lid lock structure includes: a base installed on the seat body; a pressing seat movably installed on the base along a first direction; and a locking mechanism for locking the pressing seat, having a free state in which it can move relative to the base along a second direction and a self-locking state in which it is locked and fixed to the base; the first direction and the second direction intersect. When the pressing seat moves along the first direction, the pressing seat drives the locking mechanism to move along the second direction to release the locking of the pressing seat and switch the locking mechanism from the free state to the self-locking state. The open lid lock structure of the present application is ingeniously designed, and can simultaneously realize the functions of rotating and opening the lid and taking out the whole lid, improving the functionality of the rice cooker and facilitating the use of the user.

Description

Technical Field

[0001] The present application relates to the technical field of cooking appliances, and particularly to an open lid lock structure and a rice cooker. Background Art

[0002] For cooking appliances such as rice cookers on the current market, most of their lids are rotatably engaged with the cooker body by means of hinges to achieve the functions of rotating the lid open or closed.

[0003] The lids of the above-mentioned rice cookers cannot be disassembled. When users need to observe the state of the food in the cooker body or use the rice cooker to cook hot pot, cook instant noodles, etc., the lid cannot be removed and can only be opened by rotation, which obviously limits the use of users, makes the functions of the rice cooker relatively single, cannot achieve multiple uses with one cooker, and cannot meet the different needs of users. Summary of the Invention

[0004] The embodiments of the present application aim to at least solve one of the technical problems existing in the prior art. For this reason, the embodiments of the present application provide an open lid lock structure and a rice cooker, which are ingeniously designed, can simultaneously realize the functions of rotating the lid open and removing the whole lid, improve the functionality of the rice cooker, facilitate the use of users, and meet the different needs of users.

[0005] In a first aspect, the embodiments of the present application provide an open lid lock structure, including:

[0006] A base, installed on the seat body;

[0007] A pressing seat, movably installed on the base along a first direction; and

[0008] A locking mechanism, used to lock the pressing seat, having a free state in which it can move relative to the base along a second direction and a self-locking state in which it is locked and fixed to the base;

[0009] Wherein, the first direction and the second direction intersect. When the pressing seat moves along the first direction, the pressing seat drives the locking mechanism to move along the second direction to release the locking of the pressing seat and switch the locking mechanism from the free state to the self-locking state.

[0010] The open lid lock structure according to the first aspect embodiment of the present application has at least the following beneficial effects:

[0011] The opening and locking structure of this application is ingeniously designed. Through the linkage cooperation of the base, the pressing seat, and the locking mechanism, the functions of locking and installing the cover body and detaching and removing the whole body are effectively realized. The cover body has two opening methods, namely rotating and opening and detaching and removing the whole body relative to the pot body of the rice cooker. This not only facilitates the user to rotate and open the cover body to observe the cooking state of the rice cooker body, but also facilitates the user to remove the cover body as a whole and use the rice cooker as a hot pot or noodle cooking device, improving the functionality of the rice cooker and meeting the different needs of users. At the same time, by the way that the locking mechanism can be locked and fixed by the base, after the pressing seat drives the locking mechanism to move along the second direction to release the locking of the pressing seat, the pressing seat indirectly switches the locking mechanism from the free state to the self-locking state through the base, which well avoids the interference of the locking mechanism resetting to the initial state and colliding with the pressing seat during the process of the user removing the cover body as a whole, and facilitates the user to smoothly remove the cover body.

[0012] In some embodiments, the locking mechanism has a stop portion, and a locking tongue portion cooperating with the stop portion is provided on the pressing seat. The locking mechanism locks the pressing seat by the stop portion stopping the locking tongue portion.

[0013] In some embodiments, the locking mechanism further has a guiding portion. The stop portion and the guiding portion are spaced relative to the locking tongue portion. The pressing seat pushes the locking mechanism to move along the second direction by the locking tongue portion squeezing the guiding portion, so that the stop portion disengages from the locking tongue portion.

[0014] In some embodiments, a first pressing inclined surface is provided at the bottom end of the locking tongue portion, and a first guiding inclined surface for sliding cooperation with the first pressing inclined surface is provided at the end of the guiding portion.

[0015] In some embodiments, an avoidance cavity for avoiding the stop portion is formed at the top end of the locking tongue portion of the pressing seat.

[0016] In some embodiments, the pressing seat is provided with mounting feet, and insertion slots for the mounting feet to slide and be inserted are formed on the base. A first elastic reset member is clamped between the mounting feet and the insertion slots.

[0017] In some embodiments, a limiting mechanism arranged on the base along the second direction is further included. The limiting mechanism is used to lock or release the locking mechanism during the sliding process of the locking mechanism, so that the locking mechanism switches between the self-locking state and the free state.

[0018] In some embodiments, after the locking mechanism releases the locking of the pressing seat, the limiting mechanism can drive the locking mechanism to move a certain distance in a direction opposite to the second direction and then lock and fix with the locking mechanism, so as to switch the locking mechanism to the self-locking state.

[0019] In some embodiments,

[0020] The locking mechanism includes a locking member and a self-locking member that is partially engaged with the locking member;

[0021] The limiting mechanism includes a second elastic reset member, a plurality of first guiding edges arranged circumferentially in the base, and a limiting groove formed between two adjacent first guiding edges;

[0022] Wherein, the self-locking member is slidably installed in the limiting groove, the second elastic reset member is clamped between the base and the self-locking member, and after the self-locking member disengages from the limiting groove, the second elastic reset member drives the self-locking member to slide so that the self-locking member engages with the end of the first guiding edge.

[0023] In some embodiments, a first serration is provided at the end of the locking member, a plurality of convex teeth that are slidably matched with the limiting groove are arranged circumferentially on the outer wall of the self-locking member, a second serration for engaging with the convex teeth is provided at the end of the first guiding edge, and the first serration, the limiting groove, and the second serration are smoothly connected in sequence.

[0024] In some embodiments, the second serration is Z-shaped, the first serration is V-shaped, and the convex teeth are bevel-shaped.

[0025] In some embodiments, a plurality of second guiding edges are arranged circumferentially on the outer wall of the locking member, and a plurality of guiding grooves that are slidably matched with the plurality of second guiding edges one by one are further formed on the base.

[0026] In a second aspect, an embodiment of the present application provides a rice cooker, including:

[0027] A seat body, a cover body, and the opening cover lock structure as described above;

[0028] Wherein, the base is integrally formed on the edge of the seat body, and the cover body is rotatably connected to the pressing seat to rotatably cover or open the seat body.

[0029] The rice cooker according to the second aspect of the present application has at least the following beneficial effects:

[0030] The rice cooker of the present application, due to having the above opening cover lock structure, can not only realize the function of rotating and opening the cover body, but also realize the function of taking out the cover body as a whole, improving the functionality of the rice cooker and meeting different usage requirements of users.

[0031] The above description is only an overview of the technical solution of the present application. In order to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specific embodiments of the present application are specifically exemplified. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. And in all the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0033] Figure 1 is a schematic diagram of the cooperation structure between the open lid lock structure and the lid body in an embodiment of the present application;

[0034] Figure 2 is Figure 1 a partial enlarged view of part A in

[0035] Figure 3 is a schematic diagram of the open lid lock structure in an embodiment of the present application;

[0036] Figure 4 is Figure 3 a partial enlarged view of part B in

[0037] Figure 5 is an exploded view of the open lid lock structure in an embodiment of the present application;

[0038] Figure 6 is Figure 5 a partial enlarged view of part C in

[0039] Figure 7 is Figure 5 a partial enlarged view of part D in

[0040] Figure 8 is a schematic diagram of the open lid lock structure in an embodiment of the present application when the locking mechanism is in a free state;

[0041] Figure 9 is Figure 8 a partial enlarged view of part E in

[0042] Figure 10 is a schematic diagram of the open lid lock structure in an embodiment of the present application when the locking mechanism disengages from the pressing seat;

[0043] Figure 11 is Figure 10 a partial enlarged view of part F in

[0044] Figure 12Structural schematic diagram when the locking mechanism of the open lid lock structure in the embodiment of the present application is in a self-locking state;

[0045] Figure 13 is Figure 12 Partial enlarged view of the position G in [the figure].

[0046] Wherein: base 100; annular cavity 110; pressing seat 200; mounting support feet 210; locking tongue part 220; first extrusion inclined surface 221; avoidance cavity 230; locking mechanism 300; locking part 310; first serrations 311; second guiding edge 312; self-locking part 320; convex teeth 330; stop part 340; guiding part 350; first guiding inclined surface 351; limiting mechanism 400; second elastic reset part 410; first guiding edge 420; second serrations 421; limiting groove 430; cover body 500; seat body 600. Detailed implementation manners

[0047] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solutions of the present application more clearly, and therefore are only examples and cannot be used to limit the protection scope of the present application.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the description of the specification and claims of this application and the above accompanying drawings are intended to cover non-exclusive inclusion.

[0049] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, "a plurality of" means more than two unless otherwise specifically defined.

[0050] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments may be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0051] In the description of the embodiments of the present application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0052] In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two). Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0053] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0054] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0055] Currently, the lids of cooking devices such as rice cookers on the market can only be opened by rotating. When users need to observe the state of the food in the pot or use the rice cooker to cook hot pot, cook instant noodles, etc., the lid cannot be removed and can only be opened by rotating, which obviously limits the use of users, makes the functions of the rice cooker relatively single, cannot be used for multiple purposes, and cannot meet the different needs of users.

[0056] In addition, there is also a lack of cooking equipment such as rice cookers on the market that can simultaneously have a rotatable lid opening and the ability to remove the entire lid. For the few rice cookers on the market that can achieve the above functions simultaneously, the assembly locking structure used to achieve the above functions is complex. Since it is necessary to consider reinstalling the removed lid to its original position, the locking structure of such rice cookers needs to be reset to its original state to lock the lid. Due to the functional limitations of such a locking structure, it is easy for the locking structure to interfere with the removal or reinstallation of the lid when it is reset, resulting in difficulty in removing the lid or reinstalling it, which greatly affects the lid removal functionality of the rice cooker and the user experience.

[0057] In view of the above problems, referring to Figure 1 , Figure 2 , Figure 8 , Figure 10 and Figure 12 , the present application provides an opening lid lock structure, which is assembled between a lid body 500 and a base body 600 that are connected to each other. It should be noted that the base body 600 is preferably the upper structure of the body of the rice cooker (not shown in the figure), and the lid body 500 is indirectly connected to the base body 600 through the opening lid lock structure of the present application.

[0058] The opening lid lock structure of the present application includes a base 100, a pressing seat 200, and a locking mechanism 300. Among them, the pressing seat 200 is movably installed on the base 100 along a first direction, and the locking mechanism 300 is used to lock the pressing seat 200. The locking mechanism 300 has a free state in which it can move relative to the base 100 along a second direction and a self-locking state in which it is locked and fixed to the base 100.

[0059] Moreover, the first direction and the second direction intersect. When the pressing seat 200 moves along the first direction, the pressing seat 200 drives the locking mechanism 300 to move along the second direction to release the locking of the pressing seat 200 and switch the locking mechanism 300 from the free state to the self-locking state.

[0060] It should be noted that in the present application, when the opening lid lock structure is assembled and applied to a rice cooker, the lid body 500 of the rice cooker can be rotatably connected to the pressing seat 200. The rotatable connection method is not limited to hinge connection or shaft connection, etc., to achieve the function of rotating the lid body 500 to open or close the body of the rice cooker. In addition, in the present application, the first direction corresponds to the vertically downward direction, and the second direction corresponds to the horizontally rightward direction.

[0061] When the locking mechanism 300 is in the initial state, the locking mechanism 300 locks the pressing seat 200, indirectly making the lid body 500 in a locked and non-removable state. When the pressing seat 200 moves along the first direction, the pressing seat 200 drives the locking mechanism 300 to move along the second direction, so that the entire locking mechanism 300 disengages from the pressing seat 200, thereby releasing the locking of the pressing seat 200.

[0062] When the locking mechanism 300 is in the self-locking state, the locking mechanism 300 has completely disengaged from the pressing seat 200.

[0063] It should be understood that the lid-opening lock structure of the present application is provided with a pressing seat 200 movably arranged on the base 100 and a locking mechanism 300 that is locked and cooperated with the pressing seat 200. When the user needs to take out the lid body 500 as a whole, the pressing seat 200 can be pressed downward, so that the pressing seat 200 moves vertically downward, and then drives the locking mechanism 300 to move horizontally to the right, so that the locking mechanism 300 horizontally disengages from the pressing seat 200, releases the locking of the pressing seat 200, and the user can take out the pressing seat 200 and the lid body 500 assembled on the pressing seat 200 as a whole.

[0064] Obviously, the lid-opening lock structure of the present application is ingeniously designed. Through the linkage cooperation of the base 100, the pressing seat 200 and the locking mechanism 300, the functions of locking and installing the lid body 500 and taking it out as a whole are effectively realized, so that the lid body 500 has two lid-opening methods of rotating and opening and taking out as a whole relative to the pot body of the rice cooker. It is not only convenient for the user to rotate and open the lid body 500 to observe the cooking state of the rice cooker body, but also convenient for the user to take off the lid body as a whole and use the rice cooker as a hot pot or noodle cooking device, improving the functionality of the rice cooker and meeting the different needs of users.

[0065] At the same time, in the present application, by setting the base 100 in a way that can lock and fix the locking mechanism 300, after the pressing seat 200 drives the locking mechanism 300 to move in the second direction to release the locking of the pressing seat 200, the base 100 can lock and fix the locking mechanism 300, so that the pressing seat 200 indirectly switches the locking mechanism 300 from the free state to the self-locking state through the base 100, which well avoids the collision interference between the locking mechanism 300 and the pressing seat 200 when the user takes out the lid body 500 as a whole, and facilitates the user to smoothly take out the lid body 500.

[0066] See Figure 3 and Figure 4 , in some embodiments of the present application, the pressing seat 200 is provided with mounting feet 210, and the base 100 is provided with insertion slots (not shown in the figure) for the mounting feet 210 to slide and insert. A first elastic resetting member (not shown in the figure) is clamped between the mounting feet 210 and the insertion slots. The first elastic resetting member is preferably a compression spring. Specifically, both the mounting feet 210 and the insertion slots have two corresponding ones to improve the stability of the pressing seat 200 moving in the first direction.

[0067] It is not difficult to understand that the cooperation between the mounting feet 210 and the insertion slots not only ensures that the pressing seat 200 has only the freedom of movement in the vertical up and down directions, but also facilitates the positioning removal and positioning assembly of the pressing seat 200 and the cover body 500 assembled on the pressing seat 200.

[0068] It can be understood that when the pressing seat 200 is in the initial state locked by the locking mechanism 300, the mounting feet 210 of the pressing seat 200 abut against or are inserted into the upper part of the first elastic reset member, and there is still a movement space for the bottom of the mounting feet 210 to slide downward between the bottom of the mounting feet 210 and the bottom of the insertion slot. When the user needs to remove the cover body 500, press the pressing seat 200 downward, and the bottom of the mounting feet 210 will squeeze the first elastic reset member downward. When the mounting feet 210 move to the position where they abut against the bottom of the insertion slot, the locking mechanism 300 is completely separated from the pressing seat 200, unlocking the pressing seat 200, and the user can then remove the cover body 500 as a whole, which facilitates the user to remove the cover.

[0069] It can be understood that the first elastic reset member plays a role in buffering the pressing seat 200 during the process of the pressing seat 200 driving the locking mechanism 300 to move horizontally to the right downward, avoiding the hard damage of the pressing seat 200 due to direct collision with other components. At the same time, it plays a role in pushing the pressing seat 200 and the cover body 500 upward during the process of the user removing the cover upward, improving the convenience of the user to perform the cover removal action.

[0070] See Figure 2 、 Figure 3 、 Figures 8 to 13 In some embodiments of the present application, the locking mechanism 300 has a stop portion 340, and a locking tongue portion 220 cooperating with the stop portion 340 is provided on the pressing seat 200. The locking mechanism 300 locks the pressing seat 200 by the stop portion 340 stopping the locking tongue portion 220.

[0071] In addition, the locking mechanism 300 also has a guiding portion 350. The stop portion 340 and the guiding portion 350 are arranged at intervals relative to the locking tongue portion 220. The pressing seat 200 pushes the locking mechanism 300 to move in the second direction by the locking tongue portion 220 squeezing the guiding portion 350, so that the stop portion 340 is separated from the locking tongue portion 220.

[0072] It should be understood that by providing independent stop portions 340 and guiding portions 350 at intervals on the locking mechanism 300, the stop portion 340 and the upper end of the locking tongue portion 220 are engaged in a stop and locking cooperation, and the guiding portion 350 and the lower end of the locking tongue portion 220 are engaged in a pressing and sliding cooperation. Effectively, the locking action and the unlocking action of the locking mechanism 300 as a whole on the pressing seat 300 do not interfere with each other, and the two are carried out independently, realizing the effect that the locking mechanism 300 can lock and unlock the pressing seat 200 without being directly or indirectly connected to the pressing seat 200.

[0073] See again Figure 2 、 Figure 3 、 Figures 8 to 13 In some embodiments of the present application, a first pressing inclined surface 221 is provided at the bottom end of the locking tongue portion 220, and a first guiding inclined surface 351 for sliding cooperation with the first pressing inclined surface 221 is provided at the end of the guiding portion 350.

[0074] It should be understood that when the user performs the action of removing the cover, the pressing seat 200 is pressed vertically downward, and the pressing seat 200 drives the locking tongue portion 220 thereon to move vertically downward. The first pressing inclined surface 221 at the bottom end of the locking tongue portion 220 begins to gradually slide along the first guiding inclined surface 351 at the end of the guiding portion 350. Thus, through the action of the two inclined surfaces, the locking mechanism 300 as a whole obtains a horizontal rightward acting component force, thereby driving the locking mechanism 300 as a whole to slide linearly to the right. When the first pressing inclined surface 221 moves to a state where it is completely in inclined surface contact with the first guiding inclined surface 351, the locking mechanism 300 as a whole disengages from the pressing seat 200. At this time, the stop portion 340 also completely disengages from the locking tongue portion 220, unlocking the pressing seat 200. The pressing seat 200 then moves upward under the action of the first elastic resetting member, and the user can remove the pressing seat 200 to complete the action of removing the cover.

[0075] Obviously, through the inclined surface cooperation design of the locking tongue portion 220 and the guiding portion 350, the vertical linear motion of the pressing seat 200 is ingeniously converted into the horizontal linear motion of the locking mechanism 300 as a whole, so that the base 100 can lock and fix the locking mechanism 300 after the locking mechanism 300 disengages from the pressing seat 200, and timely switch the free state of the locking mechanism 300 to the self-locking state, avoiding collision interference caused by the resetting of the locking mechanism 300 to the upward movement of the pressing seat 200.

[0076] See again Figure 8 In some embodiments, when the locking mechanism 300 locks the pressing seat 200, the vertical projection of the first pressing inclined surface 221 relative to the second direction is docked with the vertical projection of the first guiding inclined surface 351 relative to the second direction.

[0077] It should be understood that the inclination angles of the first pressing inclined surface 221 and the first guiding inclined surface 351 are equal. When the locking mechanism 300 locks the pressing seat 200, that is, when the stopping portion 340 stops against the locking tongue portion 220, the first pressing inclined surface 221 does not contact the first guiding inclined surface 351. Through the above settings, it is convenient for the first pressing inclined surface 221 at the bottom of the pressing seat 200 to contact the first guiding inclined surface 351 at the leftmost end of the guiding portion 350 again during the process of the user vertically downwardly reinstalling the pressing seat 200, and at the same time, it does not affect the stopping portion 340 on the locking member 310 being in a state of being disengaged from the locking tongue portion 220.

[0078] See again Figure 1 and Figure 2 、 Figures 8 to 13 In some embodiments of the present application, the pressing seat 200 is provided with an avoidance cavity 230 at the top end of the locking tongue portion 220 for avoiding the stopping portion 340.

[0079] Specifically, the upper part of the pressing seat 200 is a hinge seat for hinged cooperation with the cover body 500. The cover body 500 is hinged to the hinge seat through a corresponding rotating shaft to realize the function of rotating and opening / closing relative to the pressing seat 200; the lower part of the pressing seat 200 is integrally in a hollow frame shape, and the locking tongue portion 220 is the cross bar at the bottommost section of the frame. The stopping portion 340 and the guiding portion 350 are arranged up and down relative to the cross bar. During the downward movement of the pressing seat 200, the setting of the avoidance cavity 230 effectively provides sufficient avoidance space for the stopping portion 340 to prevent the stopping portion 340 from contacting other parts on the pressing seat 200 and being damaged rigidly.

[0080] See again Figure 1 、 Figure 2 、 Figure 8 、 Figure 10 and Figure 12 In some embodiments of the present application, the open lid lock structure of the present application further includes a limiting mechanism 400 arranged on the base 100 along the second direction. The limiting mechanism 400 is used to lock or release the locking mechanism 300 during the sliding process of the locking mechanism 300, so that the locking mechanism 300 switches between the self-locking state and the free state.

[0081] It should be understood that when the locking mechanism 300 moves along the second direction and completely disengages from the pressing seat 200, the locking mechanism 300 can cooperate with the limiting mechanism 400 and is then locked by the limiting mechanism 400, thereby switching from the free state to the self-locking state.

[0082] When the user needs to assemble the cover body 500 onto the base body 600 again, the user can movably assemble the pressing seat 200 onto the corresponding position of the base 100 again. During this process, the pressing seat 200 will contact the locking mechanism 300 again, thereby driving the locking mechanism 300 to move a certain distance horizontally to the right again, and causing the limiting mechanism 400 to release the locking of the locking mechanism 300, so as to release and reset the locking mechanism 300 to its initial free state, so that the locking mechanism 300 can lock the pressing seat 200 again, and then complete the locking installation of the cover body 500 assembled on the pressing seat 200.

[0083] Obviously, the setting of the limiting mechanism 400 effectively realizes the function of alternately switching the free state and the self-locking state of the locking mechanism 300 during the process of the pressing seat 200 driving the locking mechanism 300 to move in the second direction, ensuring that the cover body 500 can be smoothly taken out, and at the same time ensuring the reset locking of the cover body 500 by the locking mechanism 300 after the cover body 500 is reinstalled, and synchronously avoiding the collision interference between the locking mechanism 300 and the pressing seat 200 during the process of the user taking out the cover body 500 and reinstalling the cover body 500, and ensuring the functional stability of the overall taking out and reinstalling of the cover body 500.

[0084] See again Figure 8 、 Figure 10 and Figure 12 In some embodiments of the present application, after the locking mechanism 300 releases the locking of the pressing seat 200, the limiting mechanism 400 can drive the locking mechanism 300 to move a certain distance in the direction opposite to the second direction and then lock and fix with the locking mechanism 300 to switch the locking mechanism 300 to the self-locking state.

[0085] It should be noted that when the pressing seat 200 drives the locking mechanism 300 to move in the second direction to release the locking of the pressing seat 200 by the locking mechanism 300, the locking mechanism 300 is no longer affected by the acting force of the pressing seat 200. At this time, the limiting mechanism 400 drives the locking mechanism 300 to move a certain distance in the direction opposite to the second direction and then lock and fix with the locking mechanism 300. While switching the locking mechanism 300 to the self-locking state, it enables the pressing seat 200 to contact the guiding portion 350 on the locking mechanism 300 again when it is reinstalled, thereby indirectly providing a corresponding driving force for the limiting mechanism 400 to release the locking mechanism 300, releasing the locking and fixing of the locking mechanism 300 during the reinstalling process of the pressing seat 200, so as to switch the locking mechanism 300 back to the free state again, and then reset to the initial state of locking the pressing seat 200.

[0086] Obviously, through the above settings, during the process of removing and reinstalling the cover body 500, the pressing seat 200 can repeatedly drive the locking mechanism 300, indirectly switch the state of the locking mechanism 300 through the limiting mechanism 400, and realize the self-locking and reset of the locking mechanism 300.

[0087] Refer to again Figure 4 、 Figure 5 、 Figure 6 and Figure 7 、 Figure 8 and Figure 9 , in some embodiments of the present application, the locking mechanism 300 includes a locking member 310 and a self-locking member 320 that is partially engaged with the locking member 310; the limiting mechanism 400 includes a second elastic reset member 410, a plurality of first guiding edges 420 arranged circumferentially in the base, and a limiting groove 430 formed between two adjacent first guiding edges 420.

[0088] Wherein, the self-locking member 320 is slidably installed in the limiting groove 430, the second elastic reset member 410 is clamped between the base and the self-locking member 320, and after the self-locking member 320 disengages from the limiting groove 430, the second elastic reset member 410 drives the self-locking member 320 to slide so that the self-locking member 320 engages with the end of the first guiding edge 420.

[0089] It should be noted that, refer to Figure 8 and Figure 9 , when the locking mechanism 300 is in the initial locked state with respect to the pressing seat 200, the locking member 310 and the self-locking member 320 are on the same horizontal straight line, and the self-locking member 320 is slidably installed in the limiting groove 430 formed between two first guiding edges 420. Through the action of the limiting groove 430, at this time, the right end of the locking member 310 and the left end of the self-locking member 320 are in a partially engaged state, that is, an incompletely engaged state. Before the self-locking member 320 disengages from the limiting groove 430, the right end of the locking member 310 and the left end of the self-locking member 320 always maintain an incompletely engaged state.

[0090] Refer to successively Figures 8 to 13When the user performs the cover removal action, the user presses the pressing seat 200 vertically downward. During the downward movement of the pressing seat 200, the synchronously driven locking member 310 drives the self-locking member 320 to slide linearly to the right along the limiting groove 430. The second elastic reset member 410 is compressed by the self-locking member 320. In this process, the horizontal rightward force of the pressing seat 200 on the locking mechanism 300 as a whole is greater than the elastic force of the second elastic reset member 410. When the self-locking member 320 slides to the position where its leftmost end is separated from the limiting groove 430, the circumferential direction of the self-locking member 320 is no longer limited by the limiting groove 430, so that it slides to the right end of the locking member 310 under the force of the second elastic reset member 410, so as to be fully engaged with the locking member 310. At this time, the locking member 310 and the locking mechanism 300 as a whole are separated from the pressing seat 200, and the locking of the pressing seat 200 is released. The user can take out the pressing seat 200 and the cover 500.

[0091] After the pressing seat 200 is taken out upward, the locking mechanism 300 is reset to the left by the elastic reset member 410 for a certain distance until the leftmost end of the self-locking member 320 slides to the right end of the first guide edge 420 and engages with the first guide edge 420. At this time, the self-locking member 320 is stopped and cannot continue to drive the locking member 310 to reset to the left, so that the locking mechanism 300 is in a self-locking state as a whole, which effectively prevents the locking mechanism 300 from resetting to the initial state when the user takes out the pressing seat 200 and the cover body 500 assembled on the pressing seat 200 as a whole upward, thereby preventing the locking mechanism 300 from colliding with the pressing seat 200 when it is reset to the initial state.

[0092] In a specific embodiment, the stopper portion 340 and the guide portion 350 provided on the locking mechanism 300 can be fixedly provided at the leftmost end of the locking member 310, so as to facilitate the pressing seat 300 to drive the locking mechanism 300 to slide rightward as a whole.

[0093] See also Figure 4 , Figure 5 , Figure 6 and Figure 7 , Figure 8 as well as Figure 9 In some embodiments of the present application, the end of the locking member 310 is provided with a first sawtooth 311, the outer wall of the self-locking member 320 is provided with a plurality of protruding teeth 330 that are slidably matched with the limiting groove 430 along the circumferential direction, the end of the first guide edge 420 is provided with a second sawtooth 421 for meshing with the protruding teeth 330, and the first sawtooth 311, the limiting groove 430 and the second sawtooth 421 are smoothly connected in sequence. Specifically, the second sawtooth 421 is Z-shaped, the first sawtooth 311 is V-shaped, and the protruding teeth 330 are inclined.

[0094] It is not difficult to understand that when the user performs the action of removing the lid, the user presses the pressing seat 200 vertically downward. The pressing seat 200 then drives the locking member 310 to drive the self-locking member 320 to slide linearly to the right along the limiting groove 430. When the convex tooth 330 at the leftmost end of the self-locking member 320 slides out of the position of the limiting groove 430, the circumferential direction of the self-locking member 320 is no longer limited and blocked by the limiting groove 430. Thus, under the action of the second elastic reset member 410, it slides and is guided into the first sawtooth 311 at the right end of the locking member 310, and is fully engaged with the first sawtooth 311. At this time, the locking member 310 and the locking mechanism 300 as a whole are separated from the pressing seat 200, unlocking the pressing seat 200, and the user can then take out the pressing seat 200 and the lid 500.

[0095] After the pressing seat 200 is taken out upward, the locking mechanism 300 is reset to the left by a certain distance under the action of the elastic reset member 410 until the convex tooth 330 at the leftmost end of the self-locking member 320 slides and is guided into the second sawtooth 421 at the right end of the first guiding edge 420 and meshes with the second sawtooth 421. At this time, the self-locking member 320 is blocked by the second sawtooth 421, and the self-locking member 320 cannot continue to drive the locking member 310 to reset to the left, thereby switching the locking mechanism 300 as a whole to the self-locking state, effectively avoiding the interference and collision between the locking mechanism 300 and the pressing seat 200 when the user takes out the pressing seat 200 and the lid 500 assembled on the pressing seat 200 upward as a whole and the locking mechanism 300 resets to the free state.

[0096] See Figure 10 and Figure 11 It should be understood that in the above process, after the locking mechanism 300 as a whole is not affected by the external force of the pressing seat 200, the second elastic reset member will drive the self-locking member 320 to slide leftward for a certain distance until the convex tooth 330 slides and is guided into the second sawtooth 421. Through the meshing and cooperation actions of the convex tooth 330 with the first sawtooth 311 and the second sawtooth 421 in sequence, the linear motion of the self-locking member 320 is converted into rotational motion, thereby timely switching the locking mechanism 300 as a whole to the self-locking state and preventing it from resetting to the initial position.

[0097] See Figure 12 and Figure 13 Since the pressing seat 300 is separated from the base 100 upward as a whole, the locking mechanism 300 is reset horizontally to the left by a small distance. At this time, the stop portion 340 and the guiding portion 350 at the leftmost end of the locking mechanism 300 are both reset by a small distance, facilitating the re-contact of the first pressing inclined surface 221 at the bottom of the locking tongue portion 220 with the first guiding inclined surface 351 at the leftmost end of the guiding portion 350 during the process of vertically downwardly loading the pressing seat 200 again, and at the same time not affecting the state where the stop portion 340 on the locking member 310 is separated from the locking portion 220.

[0098] When the user needs to reassemble the cover body 500 onto the rice cooker, the user can reassemble the pressing seat 200 and the cover body 500 to their initial corresponding positions. That is, the pressing seat 200 is assembled downward, so that the first pressing inclined surface 221 at the bottom of the pressing seat 200 contacts the first guiding inclined surface 351 at the leftmost end of the guiding portion 350 again. By means of the component force of the inclined surface cooperation again, the locking member 310 and the self-locking member 320 slide linearly to the right, so that the convex teeth 330 disengage from the engagement with the second serrations 421, and slide and guide into the limiting groove 430 again under the elastic force of the second elastic reset member 410. Similarly, in the above process, the self-locking member 320 rotates by a certain angle around itself under the second elastic reset member 410. At this time, the self-locking member 320 moves leftward along the limiting groove 420 under the action of the second elastic reset member 410, so as to push the locking member 310 leftward to the initial locking state of the pressing seat 200. At this time, the locking tongue portion 220 of the pressing seat 200 is blocked by the blocking portion 340 again, and thus the locking assembly of the entire cover body assembly is completed.

[0099] Obviously, through the linkage effect of the second elastic reset member 410, the guiding groove 430 and the second serrations 421 on the whole limiting mechanism 400, the convex teeth 330 of the self-locking member 320 can be engaged with the second serrations 421 and alternately cooperate with the limiting groove 420, so that the self-locking member 320 on the locking mechanism 300 is cleverly switched from a linear motion to a rotational motion. The user can realize the switching between the free state and the self-locking state of the locking mechanism 300 by repeatedly pressing the pressing seat 200 downward. At the same time, the locking mechanism 300 can be prevented from interfering with the pressing seat 200 during the switching process between the free state and the self-locking state, and it is also effectively ensured that the locking mechanism 300 can be reset smoothly.

[0100] In addition, in a specific embodiment, by setting the second serrations 421 in a Z shape, the first serrations 311 in a V shape, the convex teeth 330 in an inclined surface shape, and designing the width of the second serrations 421 to be greater than twice the width of the first serrations 311, it is convenient for the convex teeth 330 to smoothly switch between the full engagement with the first serrations 311 and the full engagement with the first serrations 311, and it also enables the convex teeth 330 to more smoothly switch between the state of disengaging from the limiting groove 430 and the state of entering the limiting groove 430 during the rotation process of itself.

[0101] It is not difficult to understand that through the above settings, the self-locking member 320 can accurately switch between the free state and the self-locking state every time it rotates by an angle, effectively improving the motion accuracy of the self-locking member 320.

[0102] See Figure 2 、 Figure 3 and Figure 4, in some embodiments, a plurality of second guiding edges 312 are circumferentially provided on the outer wall of the locking member 310, and a plurality of guiding grooves (not shown in the figure) that are in one-to-one sliding fit with the plurality of second guiding edges 312 are further formed on the base 100. It should be noted that the guiding grooves and the limiting grooves 430 are on the same horizontal straight line. Through the sliding fit between the second guiding edges 312 and the guiding grooves, the straightness of the horizontal movement of the locking member 310 and the self-locking member 320 is improved, and it is avoided that the locking member 310 disengages from the self-locking member 320 during the movement and cannot be reset to the initial state.

[0103] Of course, in another embodiment, the guiding grooves coincide with the limiting grooves 430, and the width of the second guiding edges 312 is equal to the width of the convex teeth 330, which improves the accuracy of the overall horizontal linear movement of the locking mechanism 300 and avoids the upper and lower sliding misalignment of the locking mechanism 300.

[0104] In addition, it should be noted that the open lid lock structure of the present application is not limited to being applied to cooking devices such as pressure cookers and rice cookers, and can also be applied to other lid-equipped devices without limitation.

[0105] In addition, referring again to Figure 1 , the present application also provides a rice cooker, which includes a base body 600, a lid body 500, and the open lid lock structure as described above; wherein, the base 100 is integrally formed on the edge of the base body 600, and the lid body 500 is rotatably connected to the pressing seat 200 to rotatably cover or open the base body 600.

[0106] The rice cooker of the present application, due to having the above open lid lock structure, can not only realize the function of rotating and opening the lid body 500, but also realize the function of taking out the entire lid body 500, improving the functionality and operation safety of the rice cooker, and meeting the usage requirements of different users.

[0107] Through the action of the open lid lock structure of the rice cooker of the present application, when it is necessary to observe the food state in the cooker body, the entire lid body 500 can be taken out, and the cooker body after taking out the lid body 500 can be used as an electric hot pot, integrating the function of the electric hot pot into the rice cooker; of course, when it is not necessary to remove the lid body 500, the lid body 500 can be inserted into the cooker body, pressed to lock, and then the rice cooking function can be used normally, which is convenient and fast, and can be used in multiple ways with one cooker.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An open lid lock structure is assembled between a lid body and a base body which are connected to each other, and is characterized in that, Comprising: A base, installed on the seat body; A pressing seat, movably installed on the base along a first direction; And A locking mechanism for locking the pressing seat, having a free state capable of moving relative to the base along a second direction and a self-locking state locked and fixed to the base; The first direction and the second direction intersect. When the pressing seat moves along the first direction, the pressing seat drives the locking mechanism to move along the second direction to release the locking of the pressing seat, and switches the locking mechanism from the free state to the self-locking state; The locking mechanism has a stop portion, and a locking tongue portion cooperating with the stop portion is provided on the pressing seat. The locking mechanism locks the pressing seat by the stop portion stopping the locking tongue portion. The locking mechanism also has a guiding portion, and the stop portion and the guiding portion are spaced relative to the locking tongue portion. The pressing seat pushes the locking mechanism to move along the second direction by the locking tongue portion squeezing the guiding portion, so that the stop portion disengages from the locking tongue portion.

2. The open lid lock structure according to claim 1, characterized in that A first pressing inclined surface is provided at the bottom end of the locking tongue portion, and a first guiding inclined surface for sliding cooperation with the first pressing inclined surface is provided at the end of the guiding portion.

3. The open lid lock structure according to claim 1, characterized in that, The pressing seat is provided with an avoidance cavity at the top end of the locking tongue portion for avoiding the stop portion.

4. The open lid lock structure according to claim 1, characterized in that, The pressing seat is provided with mounting feet, and a mounting slot for slidingly inserting the mounting feet is provided on the base. A first elastic reset member is clamped between the mounting feet and the mounting slot.

5. The open lid lock structure according to claim 1, characterized in that, It further includes a limiting mechanism arranged on the base along the second direction. The limiting mechanism is used for locking or releasing the locking mechanism during the sliding process of the locking mechanism, so that the locking mechanism switches between the self-locking state and the free state.

6. The open lid lock structure according to claim 5, characterized in that, After the locking mechanism releases the locking of the pressing seat, the limiting mechanism can drive the locking mechanism to move a certain distance along the direction opposite to the second direction and then lock and fix with the locking mechanism to switch the locking mechanism to the self-locking state.

7. The open cover lock structure according to claim 5 or 6, characterized in that The locking mechanism includes a locking member and a self-locking member partially engaged with the locking member; The limiting mechanism includes a second elastic reset member, a plurality of first guiding edges arranged circumferentially in the base, and a limiting slot formed between adjacent two of the first guiding edges; Wherein, the self-locking member is slidably installed in the limiting slot, the second elastic reset member is clamped between the base and the self-locking member, and after the self-locking member disengages from the limiting slot, the second elastic reset member drives the self-locking member to slide so that the self-locking member engages with the end of the first guiding edge.

8. The open lid lock structure according to claim 7, wherein, A first sawtooth is provided at the end of the locking member, a plurality of convex teeth slidably cooperating with the limiting slot are arranged circumferentially on the outer wall of the self-locking member, and a second sawtooth for engaging with the convex teeth is provided at the end of the first guiding edge. The first sawtooth, the limiting slot, and the second sawtooth are smoothly connected in sequence.

9. The open lid lock structure according to claim 8, wherein, The second sawtooth is Z-shaped, the first sawtooth is V-shaped, and the convex teeth are inclined surface-shaped.

10. The open lid lock structure according to claim 7, characterized in that, The outer wall of the locking member is provided with a plurality of second guiding edges along the circumferential direction, and a plurality of guiding grooves are further formed on the base and are in sliding fit with the plurality of second guiding edges one by one.

11. An electric rice cooker, characterized in that, Comprising: a base body, a cover body and an open-cover locking structure according to any one of claims 1 to 10; wherein, the base is integrally formed on the edge of the base body, and the cover body is rotatably connected to the pressing base to rotatably cover or open the base body.

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