Door lock device and cooking equipment

Abstract

The utility model relates to a door lock device and cooking equipment, door lock device is used for cooking equipment, include: locking structure is used for being located the outside of inner bag, locking structure includes drive assembly and lock tongue spare, drive assembly can drive lock tongue spare and slide close to the open mouth along the preset direction, and lock tongue spare can independently reciprocate and slide along the preset direction relative to drive assembly, the structure of inserting a slot is used for being located the outer edge of door body, the structure of inserting a slot is equipped with the slot of opening direction locking structure, lock tongue spare can be inserted with the slot and is matched, at least one of the side surface of lock tongue spare towards the inner bag and the inner side wall of the slot close to the inner bag is equipped with first inclined plane, to when lock tongue spare and the structure of inserting a slot are through first inclined plane and abut, the door body is pressed to the inner bag, lock tongue spare presses the door body to the inner bag to locking state can improve the leakproofness, reduce the risk of gas leakage, the door lock device can be convenient for user to open and close the door body, and the cost is lower, improves user experience.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a door lock device and cooking equipment. Background Technology

[0002] Some cooking appliances, such as steam ovens, use handle-less doors. Existing handle-less doors typically use push rod motors to open the door automatically and automatic hinges to close it automatically.

[0003] However, push rod motors and automatic hinges are expensive. The push rod motor's travel time is long, resulting in a longer door opening time. Automatic hinges also produce a loud clattering sound when closing, negatively impacting the user experience. Furthermore, automatic hinges typically lack a locking function, creating a risk of air leakage between the door and the inner liner. Utility Model Content

[0004] Therefore, it is necessary to provide a door lock device and cooking equipment to address the above problems, so as to improve the user's experience when opening and closing the door, and at the same time improve the door's sealing performance.

[0005] This utility model provides a door lock device for a cooking appliance, the cooking appliance including an inner pot and a door body, the inner pot having an opening, the door body being openable and closable over the opening, the door lock device including: a locking structure for being disposed on the outer side of the inner pot, the locking structure including a drive assembly and a latch, the drive assembly being capable of driving the latch to slide towards the opening in a preset direction, and the latch being capable of independently reciprocating relative to the drive assembly in the preset direction; and a slot structure for being disposed on the outer edge of the door body, the slot structure having a slot with an opening facing the locking structure, the latch being capable of being inserted into the slot; wherein, at least one of the side of the latch facing the inner pot and the inner wall of the slot near the inner pot has a first inclined surface, so that when the latch and the slot structure abut against each other through the first inclined surface, the door body is pressed against the inner pot.

[0006] In the aforementioned door lock device, during the process of the user pushing the door to close, the latch can be controlled to slide independently relative to the drive assembly along a preset direction away from the opening. When the door moves to the closed state, the latch aligns with the slot, and the latch can be controlled to slide independently relative to the drive assembly along a preset direction towards the opening, allowing the latch to insert into the slot. The latch can restrict the door from opening. The drive assembly can drive the latch to slide along the preset direction towards the opening, so that the latch and the slot structure abut against each other through the first inclined surface. The latch presses the door into the inner liner to a locked state, thereby improving the sealing between the door and the inner liner and reducing the risk of air leakage. When the user opens the door, the latch can be controlled to slide along the preset direction away from the opening, separating the latch from the slot structure to prevent the latch from affecting the normal opening of the door. This door lock device facilitates the user's opening and closing of the door, and the cost of the door lock device is low, with low noise during the opening and closing process, thereby improving the user's experience when opening and closing the door.

[0007] In one embodiment, the driving component includes a driving member and an output member. The driving member can drive the output member to slide back and forth along the preset direction. The output member is provided with a first groove extending along the preset direction. The locking tongue is provided with a slider that slides with the first groove. The size of the first groove along the preset direction is smaller than the maximum size of the locking tongue sliding along the preset direction.

[0008] With this configuration, the slider slides within the first groove, allowing the locking tongue to slide independently relative to the drive assembly in a preset direction; the cooperation structure between the drive assembly and the locking tongue is simple.

[0009] In one embodiment, the locking structure further includes a frame and an elastic component disposed between the latch and the frame. When the latch slides along the preset direction, the elastic component deforms and can apply a force to the latch to make it slide toward or away from the opening.

[0010] With this configuration, the locking tongue can slide and reset in a preset direction under the action of the elastic component when no force is applied to it by the output component, making it more convenient for users to operate.

[0011] In one embodiment, the resilient component includes a first resilient element that is compressed and capable of applying a force to the latch to slide toward the opening when the latch slides away from the opening; and / or, the resilient component includes a second resilient element that is compressed and capable of applying a force to the latch to slide away from the opening when the latch slides toward the opening.

[0012] In one embodiment, the drive element includes a drive motor and a gear connected to the output shaft of the drive motor, and the output element is a rack meshing with the gear.

[0013] This configuration simplifies the structure of the drive and output components, reduces costs, and allows for a smaller drive component along a preset direction, saving space.

[0014] In one embodiment, at least one of the side of the locking tongue facing away from the inner liner and the outer side wall of the slot near the inner liner is provided with a second slope.

[0015] With this configuration, when the user pushes the door to close, the latch and the slot structure abut against each other through the second inclined surface, so as to push the latch to slide independently relative to the drive assembly away from the opening in a preset direction, preventing the latch and the slot structure from interfering with each other and causing the door to jam during the closing process, thus making the operation more convenient for the user.

[0016] In one embodiment, the door lock device further includes a micro switch for the inner liner, wherein the contacts of the micro switch are triggered by the latch when the latch slides toward and / or away from the opening in the preset direction.

[0017] This design allows for the detection of the door's closed state via a microswitch, improving the safety of the cooking appliance.

[0018] In one embodiment, the latch protrudes with a first trigger portion and a second trigger portion arranged at intervals along the preset direction. When the latch slides closer to the opening along the preset direction, the contact of the micro switch is triggered by the first trigger portion; when the latch moves away from and closer to the opening along the preset direction, the contact of the micro switch is triggered by the second trigger portion.

[0019] In one embodiment, the slot structure is made of plastic.

[0020] This design makes the plastic parts easier to manufacture and process, allowing users to design different slot structures based on the locking mechanism and the specific structure of the door, thus reducing costs.

[0021] This utility model also provides a cooking device, including an inner pot, a door and a door lock device as described above, wherein the inner pot has an opening and the door is closable over the opening. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of a cooking device according to one embodiment of the present invention.

[0024] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 for Figure 1 A cross-sectional view of a cooking appliance, with the door in the process of closing;

[0026] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0027] Figure 5 for Figure 4 A schematic diagram of the middle door in the locked state;

[0028] Figure 6 for Figure 1 A cross-sectional view of a cooking appliance, with the door in the process of opening;

[0029] Figure 7 for Figure 1 A three-dimensional structural diagram of the central locking structure;

[0030] Figure 8 for Figure 7 Exploded view of the locking structure;

[0031] Figure 9 for Figure 7 A partial structural diagram of the locking structure, in which the door is in the open state;

[0032] Figure 10 for Figure 7 A partial structural diagram of the locking mechanism, showing the door in the closing process;

[0033] Figure 11 for Figure 7 A partial structural diagram of the locking structure, in which the door is in a locked state;

[0034] Figure 12 for Figure 7 A partial structural diagram of the locking structure, in which the door is in the process of opening.

[0035] Reference numerals: 100, door lock device; 10, locking structure; 11, drive assembly; 111, drive component; 1111, drive motor; 1112, gear; 112, output component; 1121, first slide groove; 12, latch; 121, slider; 122, first trigger; 123, second trigger; 124, clearance groove; 125, latch; 126, second slide groove; 13, frame; 14, elastic component; 141, first elastic component; 142, second elastic component; 15, first cover; 16, second cover; 20, slot structure; 21, slot; 30, micro switch; 31, contact; 101, first inclined surface; 102, second inclined surface; 200, inner liner; 201, opening; 300, door body; 400, box body. Detailed Implementation

[0036] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0037] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0041] Some steam ovens and other cooking appliances use handle-less doors. Existing handle-less doors typically use a push-rod motor to open automatically and automatic hinges to close automatically. However, push-rod motors and automatic hinges are expensive, and the push-rod motor's travel time is long, resulting in a longer door opening time. The automatic hinges also produce a loud banging sound when closing, affecting the user experience. Furthermore, automatic hinges usually lack a locking function, leading to a risk of air leakage between the door and the inner liner.

[0042] To solve the above problems, such as Figures 1 to 12 As shown, this utility model provides a door lock device and cooking equipment to improve the user's experience when opening and closing the door, while also improving the door's sealing performance.

[0043] like Figures 3 to 6As shown, specifically, the door lock device 100 is used in a cooking appliance, which includes an inner pot 200 and a door 300. The inner pot 200 has an opening 201, and the door 300 is closable over the opening 201. The door lock device 100 includes a locking structure 10 and a slot structure 20. The locking structure 10 is located on the outside of the inner pot 200 and includes a drive assembly 11 and a latch 12. The drive assembly 11 can drive the latch 12 to slide close to the opening 201 in a preset direction, and the latch 12 can independently... The ground slides back and forth relative to the drive assembly 11 in a preset direction; the slot structure 20 is provided on the outer edge of the door body 300, the slot structure 20 is provided with a slot 21 with an opening facing the locking structure 10, and the locking tongue 12 can be inserted and engaged with the slot 21; wherein, at least one of the side of the locking tongue 12 facing the inner liner 200 and the inner side wall of the slot 21 near the inner liner 200 is provided with a first inclined surface 101, so that when the locking tongue 12 and the slot structure 20 abut against each other through the first inclined surface 101, the door body 300 is pressed against the inner liner 200.

[0044] The door 300 has three states: open, closed, and locked. In the open state, the door 300 is fully open. In the closed state, the door 300 is in the position where the opening 201 is closed, and the latch 12 is inserted into the slot 21, but the latch 12 does not abut against the slot structure 20 via the first inclined surface 101, and the latch 12 does not exert force on the door 300. In the locked state, the door 300 is in the position where the opening 201 is closed, and the latch 12 is inserted into the slot 21, and the latch 12 abuts against the slot structure 20 via the first inclined surface 101, pressing the door 300 against the inner liner 200. Figure 3 As shown, when the door 300 moves from the open state to the closed state, the door 300 is in the closing process; as Figure 6 As shown, when the door 300 moves from the closed state to the open state, the door 300 is in the opening process.

[0045] In the door lock device 100 provided in this embodiment of the present invention, during the process of the user pushing the door 300 to close, the latch 12 can be controlled to slide independently relative to the drive assembly 11 in a preset direction away from the opening 201. When the door 300 moves to the closed state, the latch 12 is aligned with the slot 21, and the latch 12 can be controlled to slide independently relative to the drive assembly 11 in a preset direction towards the opening 201, so that the latch 12 is inserted into the slot 21, and the latch 12 can restrict the door 300 from opening; then, the drive assembly 11 can drive the latch 12 to slide in a preset direction towards the opening 201, so that the latch... The latch 12 abuts against the slot structure 20 via the first inclined surface 101. The latch 12 presses the door 300 against the inner liner 200 to a locked state, thereby improving the sealing between the door 300 and the inner liner 200 and reducing the risk of air leakage. When the user opens the door 300, the latch 12 can be controlled to slide away from the opening 201 along a preset direction, separating the latch 12 from the slot structure 20 to prevent the latch 12 from affecting the normal opening of the door 300. When the door 300 is in the open state, the latch 12 can be controlled to slide again along the preset direction towards the opening 201 to facilitate the next closing of the door 300. Thus, the door lock device 100 facilitates the user's opening and closing of the door 300, and the door lock device 100 has a low cost and low noise during the opening and closing of the door 300, thereby improving the user's experience when opening and closing the door 300.

[0046] Specifically, when the locking tongue 12 has a first inclined surface 101 on one side facing the inner liner 200, the first inclined surface 101 slopes towards the side closer to the inner liner 200 from the end near the slot structure 20 to the end away from the slot structure 20. When the slot 21 has a first inclined surface 101 near the inner wall of the inner liner 200, the first inclined surface 101 slopes towards the side closer to the inner liner 200 from the end away from the opening of the slot 21 to the end near the opening of the slot 21.

[0047] In the illustrated embodiment, the bottom of the door 300 is rotatably connected to the bottom of the inner liner 200. When the locking tongue 12 separates from the slot structure 20, the door 300 can automatically open under its own gravity for user operation. The locking structure 10 is preferably located above the inner liner 200, and the slot structure 20 is located at the top edge of the door 300. In this case, the preset direction is the height direction of the cooking equipment, i.e., the X-axis direction shown in the figure. Alternatively, the locking structure 10 can also be located on both sides of the inner liner 200 as needed, and the slot structure 20 can be located on both sides of the door 300.

[0048] Of course, in other embodiments, the top of the door 300 can also be rotatably connected to the top of the inner liner 200. In this case, the locking structure 10 can be located below or on both sides of the inner liner 200, and the slot structure 20 can be located on the bottom or both sides of the door 300. Alternatively, one side of the door 300 can be rotatably connected to the side of the inner liner 200. In this case, the locking structure 10 can be located on the other side, above or below the inner liner 200, and the slot structure 20 can be located on the other side, top or bottom of the door 300.

[0049] like Figures 9 to 12 As shown, the drive assembly 11 includes a drive member 111 and an output member 112. The drive member 111 can drive the output member 112 to slide back and forth along a preset direction. The output member 112 is provided with a first groove 1121 extending along the preset direction. The locking tongue member 12 includes a locking tongue portion 125 and a slider 121 protruding from the locking tongue portion 125 and capable of slidingly engaging with the first groove 1121. The dimension of the first groove 1121 along the preset direction is smaller than the maximum dimension of the locking tongue member 12 sliding along the preset direction. The slider 121 slides within the first groove 1121, allowing the locking tongue member 12 to slide back and forth independently relative to the drive assembly 11 along the preset direction. Thus, the engagement structure of the drive assembly 11 and the locking tongue member 12 is simple. When the end face of the slider 121 facing the +X direction abuts against the inner wall of the first groove 1121 facing the -X direction, the drive member 111 can drive the output member 112 to slide along the -X direction, and the output member 112 can push the locking tongue member 12 to slide along the -X direction. When the end face of slider 121 facing the -X direction abuts against the inner wall of the first groove 1121 facing the +X direction, the drive member 111 can drive the output member 112 to slide along the +X direction, and the output member 112 can push the latch member 12 to slide along the +X direction. When the user opens the door 300, the drive assembly 11 can drive the latch member 12 to slide away from the opening 201 along the +X direction, so that the latch member 12 separates from the slot structure 20.

[0050] like Figures 7 to 9 As shown, in one embodiment, the driving component 111 includes a drive motor 1111 and a gear 1112 connected to the output shaft of the drive motor 1111. The output component 112 is a rack meshing with the gear 1112. The output shaft of the drive motor 1111 can drive the gear 1112 to rotate in both directions. The gear 1112 meshes with the rack to drive the rack to slide back and forth in a preset direction. When the end face of the slider 121 abuts against the inner wall of the first groove 1121, the rack can drive the locking tongue 12 to slide back and forth in the preset direction. Thus, the structure of the driving component 111 and the output component 112 is simple, the cost is low, and the size of the driving component 111 along the preset direction can be reduced, saving space.

[0051] Of course, in other embodiments, the driving component 111 may also be an electric guide rail, electric push rod, cylinder, hydraulic cylinder or other driving element that can drive the output component 112 to slide back and forth in a preset direction. This utility model embodiment does not impose specific limitations here.

[0052] like Figures 8 to 9 As shown, the locking structure 10 also includes a first cover 15 and a second cover 16 that enclose an installation space. The gear 1112, rack, and locking tongue 12 are all located within the installation space. Part of the locking tongue 12 can extend out of the installation space and engage with the slot 21. A drive unit 111 is located on the outer wall of the first cover 15, and the output shaft of the drive unit 111 passes through the first cover 15 and connects to the gear 1112. The first cover 15 and the second cover 16 protect the components within the installation space, and they are detachably connected to facilitate user assembly and maintenance of the components within the installation space.

[0053] Furthermore, the first cover 15 is also provided with a third slide groove extending in a preset direction, and the output component 112 is provided with a guide block slidably disposed in the third slide groove. Through the cooperation of the third slide groove and the guide block, the output component 112 is ensured to always slide in the preset direction.

[0054] like Figures 9 to 12 As shown, the locking structure 10 also includes a frame 13 disposed on the first cover 15 and an elastic component 14 disposed between the latch 12 and the frame 13. When the latch 12 slides along a preset direction, the elastic component 14 deforms and can apply a force to the latch 12 to make it slide towards or away from the opening 201. When the latch 12 slides along the preset direction towards the side closer to the opening 201, the elastic component 14 deforms and can apply a force to the latch 12 to make it slide away from the opening 201, so that when the output member 112 does not apply a force to the latch 12, the latch 12 can slide along the preset direction towards the side away from the opening 201 under the action of the elastic component 14. Similarly, when the latch 12 slides in a preset direction toward the side away from the opening 201, the elastic component 14 deforms and applies a force to the latch 12, causing it to slide toward the opening 201. This allows the latch 12 to slide in a preset direction toward the side closer to the opening 201 under the action of the elastic component 14, even when the output component 112 does not apply any force. Furthermore, when the door 300 moves to the closed state, the latch 12 aligns with the slot 21, and the latch 12 automatically slides in a preset direction toward the opening 201 under the action of the elastic component 14, allowing the latch 12 to insert into the slot 21, thus making user operation more convenient.

[0055] In one embodiment, the elastic component 14 includes a first elastic element 141 and a second elastic element 142. When the latch 12 slides away from the opening 201, the first elastic element 141 is compressed and can apply a force to the latch 12 to make it slide towards the opening 201. When the latch 12 slides towards the opening 201, the second elastic element 142 is compressed and can apply a force to the latch 12 to make it slide away from the opening 201. The first elastic element 141 and the second elastic element 142 can both be elastic elements such as compression springs or silicone rubber components.

[0056] Specifically, the latch 125 is further provided with a second slide groove 126 extending in a preset direction. The frame 13 is slidably disposed within the second slide groove 126 to ensure that the latch 125 always slides in the preset direction. The first elastic member 141 and the second elastic member 142 are both disposed within the second slide groove 126 to limit the deformation direction of the first elastic member 141 and the second elastic member 142. The two ends of the first elastic member 141 can respectively abut against the end face of the frame 13 facing the +X direction and the inner wall of the second slide groove 126 facing the -X direction. The two ends of the second elastic member 142 can respectively abut against the end face of the frame 13 facing the -X direction and the inner wall of the second slide groove 126 facing the +X direction.

[0057] Of course, in other embodiments, the elastic component 14 may also include only one elastic element, with its two ends connected to the latch 125 and the frame 13, respectively. When the latch 12 slides away from the opening 201, the elastic element is compressed and can apply a force to the latch 12 to make it slide towards the opening 201; when the latch 12 slides towards the opening 201, the elastic element is stretched and can apply a force to the latch 12 to make it slide away from the opening 201. Alternatively, when the latch 12 slides away from the opening 201, the elastic element is stretched and can apply a force to the latch 12 to make it slide towards the opening 201; when the latch 12 slides towards the opening 201, the elastic element is compressed and can apply a force to the latch 12 to make it slide away from the opening 201.

[0058] like Figure 2 and Figure 4As shown, at least one of the side of the latch 12 facing away from the inner liner 200 and the slot 21 near the outer wall of the inner liner 200 is provided with a second inclined surface 102. During the user's push to close the door 300, the latch 12 abuts against the slot structure 20 via the second inclined surface 102, pushing the latch 12 to slide independently relative to the drive assembly 11 in a preset direction away from the opening 201. This prevents interference between the latch 12 and the slot structure 20, which could cause the door 300 to jam during closing, thus making user operation more convenient. Specifically, when the side of the latch 12 facing away from the inner liner 200 is provided with the second inclined surface 102, from the end near the slot structure 20 to the end away from the slot structure 20, the second inclined surface 102 tilts towards the side away from the inner liner 200. When the slot 21 is provided with a second inclined surface 102 near the outer side wall of the inner liner 200, the second inclined surface 102 is inclined toward the side away from the opening of the slot 21 from the end away from the opening of the slot 21 to the end near the opening of the slot 21.

[0059] like Figures 8 to 9 As shown, the door lock device 100 also includes a micro switch 30 for the inner liner 200. When the latch 12 slides towards and away from the opening 201 in a preset direction, the contact 31 of the micro switch 30 is triggered by the latch 12. Alternatively, the contact 31 of the micro switch 30 may only be triggered when the latch 12 slides towards or away from the opening 201 in a preset direction. Thus, during the closing process and in the closed state of the door 300, when the latch 12 slides towards the +X direction, the contact 31 of the micro switch 30 is triggered by the latch 12; or, when the door 300 is in the locked state, when the latch 12 slides towards the -X direction, the contact 31 of the micro switch 30 is triggered by the latch 12. This allows the micro switch 30 to detect the closed state of the door 300, improving the safety of using the cooking device.

[0060] like Figures 9 to 12As shown, specifically, the latch 12 is provided with a first trigger part 122 and a second trigger part 123 arranged at intervals along a preset direction. When the latch 12 slides close to the opening 201 along the preset direction, the contact 31 of the micro switch 30 is triggered by the first trigger part 122; when the latch 12 moves away from the opening 201 along the preset direction, the contact 31 of the micro switch 30 is triggered by the second trigger part 123. A clearance groove 124 is formed between the first trigger part 122 and the second trigger part 123. When the door 300 is in the open state, the contact 31 of the micro switch 30 is located in the clearance groove 124, and the micro switch 30 is not triggered. During the closing process and in the closed state, the latch 12 slides towards the +X direction, and the second trigger part 123 pushes against the contact 31 of the micro switch 30, causing the micro switch 30 to be triggered. When the door 300 is in the locked state, the latch 12 slides towards the +X direction, and the first trigger part 122 pushes against the contact 31 of the micro switch 30, causing the micro switch 30 to be triggered. The end face of the first trigger part 122 facing the -X direction and the two end faces of the second trigger part 123 facing the ±X directions are all provided with bevels to prevent interference between the contact 31 of the micro switch 30 and the first trigger part 122 and the second trigger part 123, which could cause the latch 12 to jam during sliding.

[0061] In the illustrated implementation, such as Figure 9 As shown, when the door 300 is in the open state, both the first elastic element 141 and the second elastic element 142 are in an unforced state, and the slider 121 is located in the first slide groove 1121 near the -X direction. At this time, the contact 31 of the micro switch 30 is located in the clearance groove 124, and the micro switch 30 is not triggered.

[0062] like Figure 3 , Figure 4 and Figure 10 As shown, during the process of the user pushing the door 300 to close, the latch 12 and the slot structure 20 abut against each other through the second inclined surface 102, so as to push the latch 12 to slide independently relative to the drive assembly 11 in the +X direction. The slider 121 slides in the first groove 1121 in the +X direction. The first elastic member 141 is compressed and can apply a force to the latch 12 to make it slide in the -X direction. At this time, the second trigger part 123 pushes against the contact 31 of the micro switch 30, so that the micro switch 30 is triggered.

[0063] When the door 300 moves to the closed state, the latch 12 aligns with the slot 21. Under the action of the first elastic member 141, the latch 12 slides independently relative to the drive assembly 11 in the -X direction, so that the latch 12 is inserted into the slot 21. At this time, the latch 12 slides a small distance in the +X direction compared to the door 300 in the open state. The second trigger part 123 still pushes against the contact 31 of the micro switch 30, so that the micro switch 30 is triggered.

[0064] like Figure 5 and Figure 11 As shown, the drive member 111 drives the output member 112 to slide in the -X direction. The output member 112 pushes against the locking tongue member 12 to slide in the -X direction. The locking tongue member 12 and the slot structure 20 abut against each other through the first inclined surface 101 to press the door body 300 into the inner liner 200 to a locked state. The second elastic member 142 is compressed and can apply a force to the locking tongue member 12 to make it slide in the +X direction. At this time, the first trigger part 122 pushes against the contact 31 of the micro switch 30, so that the micro switch 30 is triggered.

[0065] like Figure 6 and Figure 12 As shown, when the door 300 needs to be opened, the drive member 111 drives the output member 112 to slide in the +X direction. The latch member 12 slides in the +X direction under the combined action of the second elastic member 142 and the output member 112, so that the latch member 12 separates from the slot structure 20. The door 300 can automatically move to the open state under its own gravity. The first elastic member 141 is compressed and can apply a force to the latch member 12 to make it slide in the -X direction. At this time, the contact 31 of the micro switch 30 is located below the second trigger part 123, and the micro switch 30 is not triggered.

[0066] Finally, the drive member 111 drives the output member 112 to slide along the -X direction again, and the locking tongue member 12 slides along the -X direction under the combined action of the first elastic member 141 and the output member 112. Figure 9 The state shown is so that the door 300 can close next time.

[0067] like Figure 2 and Figure 4 As shown, in one embodiment, the slot structure 20 is made of plastic. Plastic parts are easy to manufacture and process, allowing users to design different slot structures 20 according to the specific structure of the locking structure 10 and the door 300, thus reducing costs. Of course, in other embodiments, to improve the strength of the slot structure 20, it can also be made of metal or other materials; this embodiment of the present invention does not impose specific limitations.

[0068] like Figure 1 and Figure 3As shown, this embodiment of the present invention also provides a cooking device, including an inner pot 200, a door 300, and the aforementioned door lock device 100. The inner pot 200 has an opening 201, and the door 300 is closable and covers the opening 201. The door lock device 100 facilitates the user's opening and closing of the door 300, and also improves the sealing between the door 300 and the inner pot 200 when locked. The cooking device also includes a cabinet 400, with the inner pot 200 disposed inside the cabinet 400. The locking structure 10 can be disposed in the cabinet 400, such that the locking structure 10 is located on the outside of the inner pot 200; or, the locking structure 10 can be directly disposed on the outer wall of the inner pot 200. The cooking device can be a steam oven, microwave oven, or other similar equipment; or, the door lock device 100 can also be used in other household appliances such as a dishwasher.

[0069] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A door lock device for a cooking appliance, the cooking appliance comprising an inner pot (200) and a door (300), the inner pot (200) having an opening (201), the door (300) being closably disposed over the opening (201), characterized in that, The door lock device includes: A locking structure (10) is provided on the outside of the inner liner (200). The locking structure (10) includes a drive assembly (11) and a locking tongue (12). The drive assembly (11) can drive the locking tongue (12) to slide close to the opening (201) in a preset direction, and the locking tongue (12) can independently reciprocate relative to the drive assembly (11) in the preset direction; and, A slot structure (20) is provided on the outer edge of the door body (300). The slot structure (20) is provided with a slot (21) with an opening facing the locking structure (10). The locking tongue (12) can be inserted into the slot (21). The locking tongue (12) has a first inclined surface (101) on one side facing the inner liner (200) and the slot (21) near the inner wall of the inner liner (200) to press the door body (300) against the inner liner (200) when the locking tongue (12) and the slot structure (20) abut against each other through the first inclined surface (101).

2. The door latch arrangement of claim 1, wherein The driving component (11) includes a driving element (111) and an output element (112). The driving element (111) can drive the output element (112) to slide back and forth along the preset direction. The output component (112) is provided with a first groove (1121) extending along the preset direction, and the locking tongue component (12) is provided with a slider (121) that slides and engages with the first groove (1121). The size of the first groove (1121) along the preset direction is smaller than the maximum size of the locking tongue component (12) sliding along the preset direction.

3. The door latch arrangement of claim 2, wherein The locking structure (10) further includes a frame (13) and an elastic component (14) disposed between the latch (12) and the frame (13). When the latch (12) slides along the preset direction, the elastic component (14) deforms and can apply a force to the latch (12) to make it slide toward or away from the opening (201).

4. The door latch arrangement of claim 3, wherein The elastic component (14) includes a first elastic element (141) that is compressed and capable of applying a force to the latch (12) toward the opening (201) when the latch (12) slides away from the opening (201); and / or, The elastic component (14) includes a second elastic element (142) that is compressed and capable of applying a force to the latch (12) to slide away from the opening (201) when the latch (12) slides close to the opening (201).

5. The door latch arrangement of claim 2, wherein The drive unit (111) includes a drive motor (1111) and a gear (1112) connected to the output shaft of the drive motor (1111). The output unit (112) is a rack that meshes with the gear (1112).

6. The door latch arrangement of claim 1, wherein The locking tongue (12) has a second inclined surface (102) on at least one of the side facing away from the inner liner (200) and the slot (21) near the outer side wall of the inner liner (200).

7. The door latch arrangement of claim 1, wherein The door lock device also includes a micro switch (30) for the inner liner (200). When the latch (12) slides toward and / or away from the opening (201) in the preset direction, the contact (31) of the micro switch (30) is triggered by the latch (12).

8. The door latch arrangement of claim 7, wherein The locking tongue (12) is provided with a first trigger part (122) and a second trigger part (123) arranged at intervals along the preset direction. When the locking tongue (12) slides close to the opening (201) along the preset direction, the contact (31) of the micro switch (30) is triggered by the first trigger part (122). When the locking tongue (12) moves away from and closer to the opening (201) along the preset direction, the contact (31) of the micro switch (30) is triggered by the second triggering part (123).

9. The door latch arrangement of claim 1, wherein The slot structure (20) is made of plastic.

10. A cooking apparatus, characterized by, The device includes an inner liner (200), a door body (300), and a door lock device as described in any one of claims 1-9, wherein the inner liner (200) has an opening (201), and the door body (300) is closably covered by the opening (201).

Images