A lid mechanism for a cooking pot and a rice cooker

Abstract

The present invention discloses a lid mechanism and a rice cooker. The rice cooker includes the lid mechanism. The lid mechanism includes a lid, a movable buckle and a holding mechanism. The opening button is cancelled. The face cover is slidably arranged on the inner lid, the movable buckle is rotatably arranged on the face cover, and the closing buckle is arranged on the opening of the cooker body. When the lid needs to be opened, the user manually applies a driving force to the face cover, so that the face cover moves on the inner lid in a direction away from the closing buckle, driving the movable buckle to move synchronously, so as to disengage from the closing buckle on the cooker body and open the lid, realizing an operation mode without a button to open the lid. Therefore, there is no need to set a button on the lid or the cooker body, which will not occupy the area of the display panel, will not affect the layout of the display content and operation buttons, makes the outer surface of the cooker body or the lid a complete surface, ensures the integrity of the entire outer wall surface of the rice cooker, and simplifies the processing of the lid and the cooker body of the rice cooker.

Description

Technical Field

[0001] The present invention belongs to the technical field of household appliances, and particularly relates to a lid mechanism and a rice cooker. Background Art

[0002] The existing lid opening mechanism provided on a rice cooker includes a lid closing buckle, a movable buckle, a button and a button support. Among them, one of the lid closing buckle and the movable buckle is provided on the lid of the rice cooker, and the other is provided on the cooker body. The movable buckle is rotatably provided on the lid assembly or the cooker body. The button support is provided on the lid assembly or the cooker body corresponding to the movable buckle. The button is slidably provided on the button support. By pressing the button, the movable buckle is pushed to rotate to achieve the purpose of unlocking the buckle. In order to realize the self-resetting of the button, there is usually one or more reset springs between the button and the button support. When the pressing action on the button is cancelled from the outside, the movable buckle rotates under the action of the reset spring, so that the two buckles are locked.

[0003] However, when a display panel is designed on the cooker body or the lid where the button is located, the button will occupy a part of the area of the display panel, which will affect the layout of the display content and the operation buttons, resulting in poor user experience. At the same time, the setting of the button and the button support requires installation holes to be provided on the lid or the cooker body for the button to be slidably provided on the lid or the cooker body. There is a gap between the button and the button support, and the gap affects the integrity of the entire outer wall surface of the rice cooker, making the processing of the rice cooker complex. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that the lid opening button of the existing rice cooker is provided on the outer wall surface of the lid or the cooker body. On the one hand, it will occupy the area of the display panel, resulting in poor user experience. On the other hand, installation holes need to be provided on the cooker body or the lid for the button to be installed, which will cause gaps on the lid or the cooker body, damaging the integrity of the outer surface of the lid or the cooker body and making the processing of the rice cooker complex.

[0005] For this reason, the present invention provides a lid mechanism, including

[0006] a lid of the rice cooker, which has a face cover and an inner cover, and the face cover is slidably provided on the inner cover;

[0007] a movable buckle, which is rotatably provided on the face cover;

[0008] a holding mechanism, which is provided on the inner cover and applies a first biasing force to the face cover;

[0009] the lid of the rice cooker can be switched between a lid-closed state and a lid-open state;

[0010] In the lid-closed state, the movable buckle tends to be locked with a lid closing buckle on the opening of the cooker body under the action of a second biasing force of a reset component; the face cover tends to remain in the lid-closed state under the action of the first biasing force;

[0011] The face cover is driven by a driving force to slide relative to the inner cover, driving the movable buckle to disengage from the closed-cover buckle and being in an open-cover state.

[0012] Optionally, for the above-mentioned pot cover mechanism, the holding mechanism includes a first biasing member, and two ends of the first biasing member are respectively arranged on the inner cover and the face cover.

[0013] Optionally, for the above-mentioned pot cover mechanism, the holding mechanism further includes a mounting seat arranged on the inner cover and a first blocking member arranged on the face cover;

[0014] Two ends of the first biasing member are respectively arranged on the mounting seat and the first blocking member, and the first biasing member acts on the face cover by applying the first biasing force to the first blocking member.

[0015] Optionally, for the above-mentioned pot cover mechanism, a first installation groove with a notch facing the first blocking member is arranged on the mounting seat;

[0016] One end of the first biasing member is embedded in the first installation groove, and the other end extends out of the notch of the first installation groove and is arranged on the first blocking member.

[0017] Optionally, for the above-mentioned pot cover mechanism, the holding mechanism further includes a transition sleeve slidably arranged on the first installation groove;

[0018] One end of the first biasing member is embedded in the first installation groove, and the other end extends out of the notch of the first installation groove and is installed in the transition sleeve; the transition sleeve is in contact with the first blocking member.

[0019] Optionally, for the above-mentioned pot cover mechanism, the transition sleeve includes a mounting portion and a contact portion fixed at one end of the mounting portion; a first step is formed between the contact portion and the mounting portion; the mounting portion is embedded in the first installation groove and is blocked in the first installation groove by the notch of the first installation groove, and the contact portion passes through the notch of the first installation groove to extend out of the first installation groove.

[0020] Optionally, for the above-mentioned pot cover mechanism, the holding mechanism further includes a second blocking member arranged on the face cover, and the mounting seat is located between the first blocking member and the second blocking member;

[0021] The second blocking member tends to be in contact with the outer side wall of the mounting seat under the action of the first biasing force.

[0022] Optionally, in the above-mentioned pot cover mechanism, a second mounting groove is formed between the first blocking member, the second blocking member and the surface cover, the second mounting groove is sleeved on the mounting seat, and the bottom of the second mounting groove abuts against the surface of the mounting seat.

[0023] Optionally, in the above-mentioned pot cover mechanism, the holding mechanism further comprises a third blocking member provided on the inner cover;

[0024] When the cover is slid open, the third blocking member may apply a blocking force in the same direction as the first biasing force to the cover to limit the sliding of the cover.

[0025] Optionally, in the above-mentioned pot cover mechanism, the movable buckle is rotatably arranged inside the surface cover, and the surface cover is provided with a first clearance hole for the first locking end of the movable buckle to extend out, so as to form a mating end of the surface cover;

[0026] When the cover is slid open, the third blocking member can apply the blocking force to the mating end.

[0027] Optionally, in the above-mentioned pot cover mechanism, the third blocking member is a second step provided on the outer peripheral end surface of the inner cover; the second step has a step surface and a blocking surface perpendicular to the step surface;

[0028] The mating end abuts against the step surface and can slide on the step surface along with the surface cover, and the blocking surface can apply the blocking force to the mating end.

[0029] Optionally, in the above-mentioned pot cover mechanism, an outer side wall of one of the first locking end of the movable buckle and the second locking end of the cover closing buckle is provided with an inclined surface;

[0030] During the process of closing the cover, the outer side wall of the first locking end slides along the outer side wall of the second locking end, and applies a thrust in the opposite direction of the second biasing force to the active buckle through the inclined surface, forcing the active buckle to rotate;

[0031] In the closed state, the outer side wall of the first locking end is separated from the outer side wall of the second locking end.

[0032] Optionally, in the above-mentioned pot cover mechanism, an inclined surface is respectively provided on the outer side wall of the first locking end and the outer side wall of the second locking end, and the two inclined surfaces are respectively a first inclined surface and a second inclined surface;

[0033] When the outer wall of the first locking end slides on the outer wall of the second locking end, the first inclined surface gradually protrudes toward the outer wall of the second locking end, and the second inclined surface gradually protrudes toward the outer wall of the first locking end to push the movable buckle to rotate.

[0034] Optionally, for the lid mechanism described above, a guiding member extending along the sliding direction of the face cover is provided on one of the face cover and the inner cover, and a cooperating member slidably engaged with the guiding member is provided on the other one.

[0035] Optionally, for the lid mechanism described above, one of the guiding member and the cooperating member is a sliding groove, and the other one is a sliding rail adapted to be embedded in the sliding groove.

[0036] The present invention provides an electric rice cooker, comprising

[0037] a lid mechanism, which is the lid mechanism described in any one of the above;

[0038] a cooker body, which has an opening; the lid snap is arranged in the opening of the cooker body.

[0039] Optionally, for the electric rice cooker described above, a support ring is further arranged on the opening, and the lid snap is arranged on the support ring.

[0040] The technical solution of the present invention has the following advantages:

[0041] 1. The lid mechanism provided by the present invention includes a lid, a movable snap and a holding mechanism. The lid has a face cover and an inner cover, and the face cover is slidably arranged on the inner cover; the movable snap is rotatably arranged on the face cover; the holding mechanism is arranged on the inner cover to apply a first biasing force to the face cover; the lid can be switched between a lid-closed state and a lid-open state; in the lid-closed state, the movable snap tends to be locked with the lid snap on the opening of the cooker body under the action of a second biasing force of a reset member; the face cover tends to be held in the lid-closed state under the action of the first biasing force; the face cover is driven by a driving force to slide relative to the inner cover, driving the movable snap to disengage from the lid snap and be in the lid-open state.

[0042] For the lid mechanism with such a structure, the opening button is cancelled. The face cover is slidably arranged on the inner cover, the movable snap is rotatably arranged on the face cover, and the lid snap is arranged on the opening of the cooker body; when the lid needs to be opened, the user manually applies a driving force to the face cover 1, and this driving force overcomes the first biasing force of the holding mechanism, so that the face cover moves on the inner cover in a direction away from the lid snap, driving the movable snap to move synchronously to disengage from the lid snap on the cooker body and open the lid, realizing an operation mode without a button to open the lid; during the whole lid-opening process, there is no need to operate the button, so there is no need to set a button on the lid or the cooker body, and it will not occupy the area of the display panel, and will not affect the layout of the display content and the operation buttons, making the outer surface of the cooker body or the lid a complete surface and simplifying the processing of the lid and the cooker body of the electric rice cooker.

[0043] 2. The lid mechanism provided by the present invention, the holding mechanism further includes a mounting seat provided on the inner lid and a first blocking member provided on the face lid; both ends of the first biasing member are respectively provided on the mounting seat and the first blocking member, and the first biasing member acts on the face lid by applying the first biasing force to the first blocking member. The settings of the first blocking member and the first mounting groove facilitate the installation of the first biasing member.

[0044] 3. In the lid mechanism of the present invention, the holding mechanism further includes a second blocking member provided on the face lid, and the mounting seat is located between the first blocking member and the second blocking member; the second blocking member tends to abut against the outer side wall of the mounting seat under the action of the first biasing force.

[0045] When the external thrust on the face lid is withdrawn, under the first biasing force of the first biasing member, the face lid slides back towards the lid closing buckle direction. During this resetting process, when the second blocking member of the face lid abuts against the outer side wall of the mounting seat, the face lid is reset to the initial position, and the second blocking member prevents the face lid from continuing to slide towards the lid closing buckle direction, preventing the face lid from slipping off the inner lid.

[0046] 4. In the lid mechanism of the present invention, the holding mechanism further includes a third blocking member provided on the inner lid; during the process of sliding the face lid to open the lid, the third blocking member can apply a blocking force in the same direction as the first biasing force to the face lid to limit the sliding of the face lid. The setting of the third blocking member prevents the face lid from excessively squeezing the first biasing member during the process of sliding the face lid to open the lid. Thus, when the face lid slides to the position of the third blocking member, the third blocking member applies a blocking force to the face lid to block the face lid from continuing to move away from the lid closing buckle direction, so as to protect the first biasing member.

[0047] 5. In the lid mechanism of the present invention, an inclined surface is provided on the outer side wall of one of the first locking end of the movable buckle and the second locking end of the lid closing buckle; during the process of closing the face lid, the outer side wall of the first locking end slides along the outer side wall of the second locking end, and a thrust opposite to the second biasing force is applied to the movable buckle through the inclined surface, forcing the movable buckle to rotate; in the lid closed state, the outer side wall of the first locking end is separated from the outer side wall of the second locking end. The setting of the inclined surface facilitates the sliding of the outer side wall of the first locking end along the outer side wall of the second locking end during the process of closing the lid. The inclined surface applies a thrust to the movable buckle, causing the movable lock to rotate in the reverse direction first, facilitating the first locking end to quickly cross the critical position at the bottom of the second locking end. Under the action of the resetting component, the first locking end is quickly locked on the second locking end to complete the process of closing the lid.

[0048] 6. The rice cooker provided by the present invention includes a lid mechanism and a cooker body. The lid mechanism is the lid mechanism described in any one of the above; the cooker body has an opening; the lid closing buckle is provided in the opening of the cooker body.

[0049] For this rice cooker with such a structure, due to the adoption of the above-mentioned lid mechanism, no opening button is provided on the outer wall surface of the lid and the outer wall surface of the cooker body, so that the display area on the outer wall surface of the rice cooker will not be occupied, nor will the integrity of the outer surface of the rice cooker be damaged, which is convenient for the processing of the cooker body and the lid. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0051] Figure 1 Schematic diagram of the rice cooker provided in Embodiment 2 of the present invention in the lid-closed state;

[0052] Figure 2 For Figure 1 Schematic diagram of the rice cooker in the lid-open state in;

[0053] Figure 3 For Figure 1 Partial enlarged schematic diagram of the cooperation between the face cover and the movable buckle of the rice cooker in (the outer side direction of the face cover);

[0054] Figure 4 For Figure 3 Schematic diagram of the cooperation between the movable buckle and the reset component in;

[0055] Figure 5 For Figure 1 Partial enlarged schematic diagram of the cooperation between the first blocking member, the second blocking member and the movable buckle on the face cover of the rice cooker in (the inner side direction of the face cover);

[0056] Figure 6 For Figure 1 Schematic diagram of the structure of the face cover of the rice cooker in;

[0057] Figure 7 For Figure 1 Schematic diagram of the structure of the inner cover of the rice cooker in;

[0058] Figure 8 Partial enlarged structural schematic diagram of the sliding cooperation between the face cover and the inner cover;

[0059] Figure 9 For Figure 7 Schematic diagram of the structure of the holding mechanism provided on the inner cover in;

[0060] Figure 10 Figure 6 Schematic diagram of the inner side of the face cover in;

[0061] Figure 11 For Figure 9 Schematic diagram of the mating structure between the mounting base of the holding mechanism and the transition sleeve;

[0062] Figure 12 For Figure 6 Partial structural schematic diagram of the longitudinal section of the front cover;

[0063] Figure 13a Schematic diagram of the state of the rice cooker during the process of closing the cover;

[0064] Figure 13b Schematic diagram of the state of the rice cooker when the cover is closed;

[0065] Figure 14a Schematic diagram of the state of the rice cooker during the process of sliding and opening the front cover;

[0066] Figure 14b Schematic diagram of the structure of the rice cooker when the cover is open;

[0067] Explanation of reference numerals:

[0068] 10 - cooker cover; 1 - front cover; 11 - first blocking member; 12 - second blocking member; 13 - second installation groove; 14 - mating end; 141 - first relief hole; 2 - inner cover; 31 - movable buckle; 311 - first locking end; 3111 - first inclined surface; 32 - cover closing buckle; 321 - second locking end; 3211 - second inclined surface; 4 - reset member; 51 - first biasing member; 52 - mounting base; 521 - first installation groove; 5211 - open end; 53 - transition sleeve; 531 - installation portion; 532 - abutting portion; 54 - third blocking member; 541 - step surface; 542 - blocking surface; 61 - guiding member; 62 - mating member;

[0069] 20 - cooker body; 201 - support ring. Detailed implementation manners

[0070] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0071] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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 thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0072] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can 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. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0073] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0074] Embodiment 1

[0075] This embodiment provides a pot cover mechanism, as Figures 1 to 14b shown, which includes a pot cover 10, a movable buckle 31 and a holding mechanism. Among them, the pot cover 10 has a face cover 1 and an inner cover 2, and the face cover 1 is slidably arranged on the inner cover 2; the movable buckle 31 is rotatably arranged on the face cover 1; the holding mechanism is arranged on the inner cover 2 to apply a first biasing force to the face cover 1; the pot cover 10 can be switched between a closed cover state and an open cover state; in the closed cover state, the movable buckle 31 is biased by a second biasing force of the reset member 4 and tends to lock with the closing cover buckle 32 on the opening of the pot body 20; the face cover 1 is biased by the first biasing force and tends to remain in the closed cover state; the face cover 1 is driven by a driving force to slide relative to the inner cover 2 to drive the movable buckle 31 to disengage from the closing cover buckle 32 and be in the open cover state.

[0076] For the lid mechanism of this structure, the opening button is cancelled. The top cover 1 is slidably arranged on the inner lid 2, the movable buckle 31 is rotatably arranged on the top cover 1, and the closing buckle 32 is arranged at the opening of the cooking pot body 20. When the cooking pot lid 10 needs to be opened, the user manually applies a driving force to the top cover 1, and this driving force overcomes the first biasing force of the retaining mechanism, causing the top cover 1 to move on the inner lid 2 in a direction away from the closing buckle 32, driving the movable buckle to move synchronously, so as to disengage from the closing buckle 32 on the cooking pot body 20 and open the cooking pot lid 10, realizing an operation method without a button to open the cooking pot lid 10. After that, when the user cancels the thrust on the top cover 1, the top cover resets under the first biasing force of the retaining mechanism, so that the relative positional relationship between the top cover 1 and the inner lid 2 is in the state when the cooking pot lid is closed, and the lid mechanism is in the Figure 2 open lid state shown. During the entire lid opening process, there is no need to operate a button, so there is no need to set a button on the cooking pot lid 10 or the cooking pot body 20, and it will not occupy the area of the display panel, nor will it affect the layout of the display content and operation buttons, making the outer surface of the cooking pot body 20 or the cooking pot lid 10 a complete surface, ensuring the integrity of the outer wall surface of the rice cooker and simplifying the processing of the cooking pot lid 10 and the cooking pot body 20 of the rice cooker.

[0077] As Figure 9 , Figure 11 and Figure 12 shown, the retaining mechanism includes a first biasing member 51, and both ends of the first biasing member 51 are respectively arranged on the inner lid 2 and the top cover 1. For example, the first biasing member 51 is a compression spring, and both ends of the compression spring are respectively fixed on the inner lid 2 and the top cover 1. In Figure 12 , the compression spring applies a first biasing force to the top cover 1 towards the left, so that the top cover 1 remains relative to the inner lid 2 in the Figure 12 initial position shown.

[0078] For the convenience of assembling the first biasing member 51, as Figure 7 , Figure 9 , Figure 11 and Figure 12 shown, preferably, the retaining mechanism further includes a mounting seat 52 arranged on the inner lid 2 and a first blocking member 11 arranged on the top cover 1, as Figure 11 shown; both ends of the first biasing member 51 are respectively arranged on the mounting seat 52 and the first blocking member 11, and the first biasing member 51 acts on the top cover 1 by applying a first biasing force to the first blocking member 11.

[0079] For example, as Figure 11 and Figure 12 shown, the mounting seat 52 is provided with a first mounting groove 521 with a notch facing the first blocking member 11; one end of the first biasing member 51 is embedded in the first mounting groove 521, and the other end extends out of the notch of the first mounting groove 521 and is arranged on the first blocking member 11. The setting of the first mounting groove 521 facilitates the installation of the first biasing member 51 on the inner lid 2.

[0080] Further preferably, as Figure 12 shown, the holding mechanism further includes a transition sleeve 53 slidably disposed on the first installation groove 521; one end of the first biasing member 51 is embedded in the first installation groove 521, and the other end extends out of the notch of the first installation groove 521 and is installed in the transition sleeve 53; the transition sleeve 53 is in contact with the first blocking member 11.

[0081] Since the transition sleeve 53 is slidably disposed on the first installation groove 521, and the two ends of the first biasing member 51 are respectively embedded in the first installation groove 521 and the transition sleeve 53, when the first biasing member 51 is compressed or releases energy, it drives the transition sleeve 53 to perform reciprocating linear sliding on the first installation groove 521, and further drives the face cover 1 to perform linear sliding to reset to the initial position.

[0082] For the transition sleeve 53, preferably, as Figure 11 shown, the transition sleeve 53 includes an installation portion 531 and a contact portion 532 fixed to one end of the installation portion 531. A first step is formed between the contact portion 532 and the installation portion 531; the installation portion 531 is embedded in the first installation groove 521 and is blocked in the first installation groove 521 by the notch of the first installation groove 521, and the contact portion 532 passes through the notch of the first installation groove 521 to extend out of the first installation groove 521.

[0083] That is to say, the size of the installation portion 531 is larger than the size of the notch of the first installation groove 521, and the size of the contact portion 532 is smaller than the size of the notch of the first installation groove 521, so as to limit the installation portion 531 to slide within the first installation groove 521 and realize the sliding connection between the transition sleeve 53 and the first installation groove 521.

[0084] To facilitate the installation of the installation portion 531 of the transition sleeve 53 into the first installation groove 521, as Figure 11 shown, the top of the first installation groove 521 is an open mouth 5211, and the installation portion 531 is embedded in the first installation groove 521 through the open mouth 5211.

[0085] Preferably, the mounting seat 52 is in the shape of a cuboid. Correspondingly, the installation portion 531 is in the shape of a cuboid, and the contact portion 532 is in the shape of a cylinder. Of course, both the mounting seat 52 and the installation portion 531 can be in the shape of a cylinder, or other shapes, as long as the two form a sliding fit. For example, the transition sleeve 53 can also be slidably sleeved outside the groove wall of the first installation groove 521. In addition to being in the shape of a cylinder, the contact portion 532 can also be other shaped structures. The specific structure is not limited, as long as one end of the first biasing member 51 is embedded in the inner cavity of the contact portion 532.

[0086] For the first blocking member 11, as Figure 5 , Figure 6 andFigure 10 As shown, the first blocking member 11 can be a stopper or a protrusion protruding downward on the inner wall of the face cover 1. The stopper or protrusion is in an inverted L shape, and the abutting portion abuts on the vertical portion of the inverted L shape. Or it can also be in other shapes, such as a T shape, and the abutting portion abuts on the vertical portion of the T shape. The specific shape of the first blocking member can be selected according to actual needs and is not specifically limited.

[0087] As Figure 5 and Figure 12 shown, preferably, the holding mechanism further includes a second blocking member 12 provided on the face cover 1, and the mounting seat 52 is located between the first blocking member 11 and the second blocking member 12; under the action of the second biasing force, the second blocking member 12 can abut on the outer side wall of the mounting seat 52.

[0088] When the external thrust on the face cover is withdrawn, under the first biasing force of the first biasing member 51 (towards the left in Figure 12 ), the face cover 1 slides and resets to the left in Figure 12 . During this resetting process, when the second blocking member 12 of the face cover 1 abuts on the outer side wall of the mounting seat 52, the face cover 1 resets to the initial position, and the second blocking member 12 prevents the face cover 1 from continuing to slide to the left, preventing the face cover 1 from slipping off the inner cover 2.

[0089] As Figure 13a and Figure 11 shown, a second installation groove 13 is formed between the first blocking member 11, the second blocking member 12 and the face cover 1. The second installation groove 13 sleeves on the mounting seat 52, and the bottom of the second installation groove 13 abuts on the open mouth 5211 at the top of the mounting seat 52, which plays a limiting role on the installation portion 531, making the assembly of the mounting seat 52, the first blocking member 11, the second blocking member 12, the transition sleeve 53 and the first biasing member 51 compact and occupying a small space.

[0090] Furthermore, as Figure 12 shown, the holding mechanism further includes a third blocking member 54 provided on the inner cover 2; during the process of the face cover 1 sliding to open the cover, the third blocking member 54 can apply a blocking force in the same direction as the first biasing force to the face cover 1 to limit the sliding of the face cover 1.

[0091] The setting of the above-mentioned second blocking member 12 prevents the face cover 1 from slipping off the inner cover 2 under the first biasing force, and the setting of the third blocking member 54 here prevents the face cover 1 from excessively squeezing the first biasing member 51 during the process of sliding to open the cover. Thus, when the face cover 1 slides to the third blocking member 54, the third blocking member 54 applies a blocking force to the face cover 1 to block the face cover 1 from continuing to move away from the cover buckle 32, so as to protect the first biasing member 51.

[0092] Preferably, as Figure 3 、Figure 4 , Figure 5 and Figure 12 As shown, the movable buckle 31 is rotatably arranged inside the face cover 1. A first relief hole 141 for the first locking end 311 of the movable buckle 31 to extend out is provided on the face cover 1 to form a mating end 14 of the face cover 1. During the sliding opening of the face cover 1, the third blocking member 54 can apply a blocking force to the mating end 14 to protect the first biasing member 51.

[0093] As Figure 4 shown, the reset member 4 is a torsion spring. The torsion spring is sleeved on the rotating shaft of the movable buckle 31 to apply a second biasing force to the movable buckle 31.

[0094] As Figure 12 shown, the third blocking member 54 is a second step provided on the outer peripheral end face of the inner cover 2. The second step has a step surface 541 and a blocking surface 542 perpendicular to the step surface 541. The mating end 14 abuts against the step surface 541 and can slide on the step surface 541 along with the face cover 1. The blocking surface 542 can apply a blocking force to the mating end 14.

[0095] The bottom of the mating end 14 of the face cover 1 always abuts against the step surface 541. When the cover needs to be opened, as Figure 13b shown, under an external driving force, the face cover 1 slides towards the right in Figure 13b . The face cover 1 compresses the first biasing member 51. The mating end 14 of the face cover 1 slides on the step surface 541 along with the face cover 1 until the mating end 14 slides to the state as Figure 14a shown. When the end face of the mating end 14 abuts against the blocking surface 542, the face cover 1 slides in place. During this process, the face cover 1 drives the movable lock to disengage from the closing buckle, so that during the opening process, the first biasing member 51 will not be excessively squeezed.

[0096] As a variation, since the inner cover 2 does not slide, the third blocking member 54 can also be other structures. For example, in Figure 14b , the third blocking member 54 does not act on the mating end 14 of the face cover 1, but acts on the second blocking member 12. The third blocking member 54 and the mounting seat 52 are arranged on the inner cover 2 in a relatively distributed manner. The second blocking member 12 is located between the mounting seat 52 and the third blocking member 54. The third blocking member 54 limits the sliding of the face cover 1 towards the right. That is, the second blocking member 12 slides between the mounting seat 52 and the third blocking member 54 to achieve the limit of the sliding stroke of the face cover 1. The structural form of the third blocking member 54 is not limited. For example, the third blocking member 54 is a protrusion or a bump.

[0097] As Figure 13a and Figure 13bAs shown, on the outer side walls of the first locking end 311 of the movable buckle 31 and the second locking end 321 of the lid-closing buckle 32, there is respectively provided an inclined surface; the two inclined surfaces are respectively the first inclined surface 3111 and the second inclined surface 3211. During the process of closing the lid 1, the first inclined surface 3111 on the outer side wall of the first locking end 311 slides along the second inclined surface 3211 on the outer side wall of the second locking end 321. The first inclined surface 3111 gradually protrudes towards the outer side wall of the second locking end 321, and the second inclined surface 3211 gradually protrudes towards the outer side wall of the first locking end 311, applying a thrust to the movable buckle 31 in the direction opposite to the second biasing force, forcing the movable buckle 31 to rotate counterclockwise in Figure 13a until after the first inclined surface 3111 crosses the critical position at the bottom of the second inclined surface 3211, the movable buckle 31 rotates clockwise under the biasing force of the reset member 4 in Figure 13a and turns to the lid-closed state as shown in Figure 13b . The movable buckle 31 is locked on the lid-closing buckle 32, completing the lid-closing process.

[0098] As a variation, the first inclined surface 3111 can be provided only on the movable buckle 31, or the second inclined surface 3211 can be provided only on the lid-closing buckle 32; or the inclined surface can also be not provided. During the lid-closing process, when in the open-lid state as shown in Figure 14b , the lid 1 can be first pushed to slide rightward and then rotated downward until reaching the state as shown in Figure 14a . At this time, the movable buckle 31 is located below the lid-closing buckle 32. Then, the lid 1 is released, and the lid 1 is reset under the biasing force of the first biasing member 51. The movable buckle 31 is locked on the lid-closing buckle 32 under the second biasing force of the reset member 4, thus realizing the lid-closing process.

[0099] As shown in Figure 8 , on one of the lid 1 and the inner lid 2, there is provided a guide member 61 extending along the sliding direction of the lid 1, and on the other, there is provided a fitting member 62 slidably fitted on the guide member 61.

[0100] Optionally, one of the guide member 61 and the fitting member 62 is a chute, and the other is a slide rail adapted to be embedded in the chute. For example, the inner lid 2 is provided with a chute, and the lid 1 is provided with a protruding slide rail. With the cooperation of the slide rail and the chute, it plays a guiding and limiting role for the reciprocating sliding of the lid 1 on the inner lid 2. As a variation, the inner lid 2 can be provided with a slide rail, and correspondingly, the lid 1 is provided with a chute. Or, the guide member 61 is a chute, and correspondingly, the fitting member 62 is a guide roller, and the guide roller is embedded in the chute.

[0101] Illustrated by the above optimal embodiment, the opening and closing action processes of the above-mentioned lid mechanism of the cooking pot are specifically as follows:

[0102] Figure 13bIt shows that the lid mechanism of the pot is in the closed state with the pot body 20. At this time, the lid 1 is buckled on the opening of the pot body 20 under the first biasing force of the first biasing member 51. The mating end 14 of the lid 1 abuts against the left side of the step surface 541. The first locking end 311 of the movable buckle locks on the second locking end 321 of the closing lid buckle 32. The first blocking member 11 abuts against the left end of the transition sleeve 53. The second blocking member 12 abuts against the right outer wall surface of the mounting seat 52. The inner lid 2 of the pot lid is hinged on the pot body 20.

[0103] Opening process: In Figure 13b , a rightward thrust is applied to the lid 1 to overcome the first biasing force of the first biasing member 51. The slide rail of the lid 1 slides rightward in the chute of the inner lid 2. The first biasing member 51 is compressed. The lid 1 drives the movable buckle 31 to move rightward. The second blocking member 12 separates from the outer wall of the mounting seat 52. The mating end 14 slides on the step surface 541 until the movable buckle 31 moves to Figure 14a When in the state shown, at this time the mating end 14 abuts against the blocking surface 542, blocking the lid 1 from moving backward continuously. The movable buckle separates from the closing lid buckle to achieve opening the lid; afterwards, the external driving force on the lid 1 is withdrawn. Due to the reset spring being provided at the hinge of the inner lid and the pot body, under the biasing force of the reset spring of the pot lid 10, it rotates upward as a whole. Under the first biasing force of the first biasing member 51, it drives the lid 1 to slide leftward to reset to the initial position of the closed state. The second blocking member 12 abuts against the right outer wall of the mounting seat 52 again. The mating end 14 abuts against the left end of the step surface 541 to complete the opening process, as shown in Figure 14b The opened state shown.

[0104] Closing process: Starting from Figure 14b The opened state shown, first rotate the pot lid 10 downward as a whole, so that the first inclined surface 3111 of the first locking end 311 of the movable locking buckle abuts against the second inclined surface 3211 of the second locking end 321 of the closing lid buckle 32. The first inclined surface 3111 of the movable buckle 31 slides downward along the second inclined surface 3211 of the closing lid buckle 32, as shown in Figure 13a . The second inclined surface 3211 exerts a thrust on the first inclined surface 3111 in the direction opposite to the second biasing force. Under this thrust, the movable buckle 31 rotates counterclockwise in Figure 13a until after the first inclined surface 3111 of the movable buckle 31 crosses the bottom critical position of the second inclined surface 3211, the closing lid buckle 32 withdraws the thrust on the movable buckle 31. Under the second biasing force of the reset member 4, the movable buckle 31 rotates clockwise. The first locking end 311 of the movable buckle 31 abuts against the second locking end 321, reaching the state as shown in Figure 13bThe closed-lid state is shown. Throughout the closed-lid state, the lid 1 does not slide on the inner lid 2, and the first biasing member 51 always maintains the first biasing force on the lid 1 towards the left, so that the lid 1 is kept at the initial position in the closed-lid state to complete the closed-lid process.

[0105] Embodiment 2

[0106] This embodiment provides an electric rice cooker, as Figure 1 and Figure 2 shown, which includes

[0107] a pot lid mechanism, which is the pot lid mechanism of any one of Embodiment 1.

[0108] a pot body 20, which has an opening; the closing lid buckle is arranged in the opening of the pot body 20.

[0109] For the electric rice cooker of this embodiment, since the pot lid mechanism in Embodiment 1 is adopted, no opening button is provided on the outer wall surface of the pot lid 10 of the electric rice cooker and on the outer wall surface of the pot body 20, so that it does not occupy the display area on the outer wall surface of the electric rice cooker and does not damage the integrity of the outer surface of the electric rice cooker.

[0110] As Figure 13a shown, preferably, the electric rice cooker further includes a support ring 201 arranged on the opening, and the closing lid buckle is arranged on the support ring 201, which is convenient for the installation and assembly of the closing lid buckle 32. Most preferably, the closing lid buckle 32 is formed on the support ring 201, which is convenient for the preparation of the closing lid buckle 32. When disassembly is required, the entire support ring 201 can be disassembled, simplifying the structure of the electric rice cooker.

[0111] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A pot lid mechanism, characterized in that, including a pot lid (10) having a top lid (1) and an inner lid (2), the top lid (1) being slidably disposed on the inner lid (2); a movable buckle (31) rotatably disposed on the top lid (1); a holding mechanism disposed on the inner lid (2) to apply a first biasing force to the top lid (1); the pot lid (10) being switchable between a closed lid state and an open lid state; in the closed lid state, the movable buckle (31) tends to be locked with a closing lid buckle (32) on an opening of a pot body (20) under a second biasing force applied by a reset member (4); the top lid (1) tends to remain in the closed lid state under the first biasing force; the top lid (1) is driven by a driving force to slide relative to the inner lid (2), driving the movable buckle (31) to disengage from the closing lid buckle (32) and be in the open lid state, the holding mechanism includes a first biasing member (51), two ends of the first biasing member (51) being respectively disposed on the inner lid (2) and the top lid (1), the holding mechanism further includes a mounting seat (52) disposed on the inner lid (2) and a first blocking member (11) disposed on the top lid (1); two ends of the first biasing member (51) are respectively disposed on the mounting seat (52) and the first blocking member (11), and the first biasing member (51) acts on the top lid (1) by applying the first biasing force to the first blocking member (11), the holding mechanism further includes a second blocking member (12) disposed on the top lid (1), the mounting seat (52) being located between the first blocking member (11) and the second blocking member (12); the second blocking member (12) tends to abut against an outer side wall of the mounting seat (52) under the action of the first biasing force, the holding mechanism further includes a third blocking member (54) disposed on the inner lid (2); during the sliding opening of the top lid (1), the third blocking member (54) can apply a blocking force in the same direction as the first biasing force to the top lid (1) to limit the sliding of the top lid (1).

2. The lid mechanism according to claim 1, wherein a first mounting groove (521) with a notch facing the first blocking member (11) is provided on the mounting seat (52); one end of the first biasing member (51) is embedded in the first mounting groove (521), and the other end extends out of the notch of the first mounting groove (521) and is disposed on the first blocking member (11).

3. The lid mechanism according to claim 2, characterized in that, the holding mechanism further includes a transition sleeve (53) slidably disposed on the first mounting groove (521); one end of the first biasing member (51) is embedded in the first mounting groove (521), and the other end extends out of the notch of the first mounting groove (521) and is installed in the transition sleeve (53); the transition sleeve (53) is in abutting contact with the first blocking member (11).

4. The lid mechanism according to claim 3, characterized in that, The transition sleeve (53) includes a mounting portion (531) and an abutting portion (532) fixed to one end of the mounting portion (531). A first step is formed between the abutting portion (532) and the mounting portion (531). The mounting portion (531) is embedded in the first mounting groove (521) and is blocked within the first mounting groove (521) by the notch of the first mounting groove (521). The abutting portion (532) passes through the notch of the first mounting groove (521) to extend outside the first mounting groove (521).

5. The lid mechanism according to claim 1, characterized in that, A second mounting groove (13) is formed between the first blocking member (11), the second blocking member (12) and the face cover (1). The second mounting groove (13) is sleeved on the mounting base (52), and the bottom of the second mounting groove (13) abuts against the surface of the mounting base (52).

6. The lid mechanism according to claim 1, characterized in that The movable buckle (31) is rotatably arranged inside the face cover (1). A first relief hole (141) for the first locking end (311) of the movable buckle (31) to extend out is provided on the face cover (1) to form a mating end (14) of the face cover (1). During the process of the face cover (1) sliding open, the third blocking member (54) can apply the blocking force to the mating end (14).

7. The lid mechanism according to claim 6, characterized in that, The third blocking member (54) is a second step provided on the outer peripheral end surface of the inner cover (2). The second step has a step surface (541) and a blocking surface (542) perpendicular to the step surface (541). The mating end (14) abuts against the step surface (541) and can slide on the step surface (541) along with the face cover (1). The blocking surface (542) can apply the blocking force to the mating end (14).

8. The lid mechanism according to any one of claims 1-4, characterized in that, An inclined surface is provided on the outer side wall of one of the first locking end (311) of the movable buckle (31) and the second locking end (321) of the closing buckle (32). During the process of the face cover (1) closing, the outer side wall of the first locking end (311) slides along the outer side wall of the second locking end (321), and a thrust opposite to the second biasing force is applied to the movable buckle (31) through the inclined surface, forcing the movable buckle (31) to rotate. In the closed state, the outer side wall of the first locking end (311) is separated from the outer side wall of the second locking end (321).

9. The lid mechanism according to claim 8, characterized in that, An inclined surface is respectively provided on the outer side wall of the first locking end (311) and the outer side wall of the second locking end (321). The two inclined surfaces are respectively a first inclined surface (3111) and a second inclined surface (3211). During the sliding of the outer side wall of the first locking end (311) on the outer side wall of the second locking end (321), the first inclined surface (3111) gradually protrudes towards the outer side wall of the second locking end (321), and the second inclined surface (3211) gradually protrudes towards the outer side wall of the first locking end (311) to push the movable buckle (31) to rotate.

10. The lid mechanism according to any one of claims 1-4, characterized in that One of the face cover (1) and the inner cover (2) is provided with a guide member (61) extending along the sliding direction of the face cover (1), and the other is provided with a fitting member (62) slidably fitted on the guide member (61).

11. The lid mechanism according to claim 10, characterized in that, One of the guide member (61) and the fitting member (62) is a chute, and the other is a slide rail adapted to be embedded in the chute.

12. An electric rice cooker, characterized in that, Comprising A pot cover mechanism, which is the pot cover mechanism according to any one of claims 1-11; A pot body (20) having an opening; the lid is snap-fitted in the opening of the pot body (20).

13. The rice cooker according to claim 12, wherein, It further includes a support ring (201) provided on the opening, and the lid is snap-fitted on the support ring (201).

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