CN111236774A - Cooking appliance and locking mechanism thereof - Google Patents
Cooking appliance and locking mechanism thereof Download PDFInfo
- Publication number
- CN111236774A CN111236774A CN202010097636.8A CN202010097636A CN111236774A CN 111236774 A CN111236774 A CN 111236774A CN 202010097636 A CN202010097636 A CN 202010097636A CN 111236774 A CN111236774 A CN 111236774A
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- CN
- China
- Prior art keywords
- limiting
- locking
- door panel
- moving
- piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/0623—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
- A47J37/0629—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity with electric heating elements
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/0623—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
- A47J37/0664—Accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/02—Doors specially adapted for stoves or ranges
- F24C15/022—Latches
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
- E05Y2900/308—Application of doors, windows, wings or fittings thereof for domestic appliances for ovens
Abstract
The invention discloses a cooking appliance and a locking mechanism thereof. The limiting assembly comprises a first moving part and a first elastic reset part for enabling the first moving part to reset, and the first moving part is provided with a first limiting part; the locking assembly comprises a second moving piece and a second elastic resetting piece for enabling the second moving piece to reset, and the second moving piece is provided with a second limiting part for limiting and matching with the first limiting part and a first locking part for locking and matching with the limiting part in the box body; the first moving piece can move to enable the first limiting part and the second limiting part to be separated under the action of the switch assembly; the first moving piece can move to enable the first limiting part to be in limiting fit with the second limiting part under the action of the first elastic resetting piece; the second moving piece can move under the action of the second elastic resetting piece, so that the first locking part is in locking fit with the limiting piece. Locking mechanism can avoid the scald problem that the mistake opened a door and arouses.
Description
Technical Field
The invention relates to the technical field of cooking appliances, in particular to a cooking appliance and a locking mechanism thereof.
Background
Cooking appliances such as microwave ovens and ovens are used as common heating devices in daily life. Because the temperature of the cooking appliance in the heating process is higher, the door plate can not be opened at will due to extra attention in the use process. Because traditional locking mechanism of cooking device is comparatively simple, only need the pulling handle can realize opening the door, when the user has carried out the operation of opening the door unintentionally, especially when children open the door by mistake, safety problems such as scald easily take place.
Disclosure of Invention
Based on the above, the cooking appliance and the locking mechanism thereof are provided, the locking mechanism can avoid the problem of scalding caused by mistaken opening of the door, and the normal opening and closing operation of the door plate can not be influenced; thus, the safety factor of the cooking appliance comprising the locking mechanism is high.
The technical scheme is as follows:
in one aspect, a locking mechanism of a cooking appliance is provided, including: a switch assembly; the limiting assembly comprises a first moving piece and a first elastic resetting piece for enabling the first moving piece to reset, and the first moving piece is provided with a first limiting part; the locking assembly comprises a second moving piece and a second elastic reset piece for enabling the second moving piece to reset, and the second moving piece is provided with a second limiting part for limiting and matching with the first limiting part and a first locking part for locking and matching with the limiting part in the box body; the first moving part can move to enable the first limiting part and the second limiting part to be separated under the action of the switch assembly; the first moving part can move to enable the first limiting part to be in limiting fit with the second limiting part under the action of the first elastic resetting part; the second moving piece can move under the action of the second elastic reset piece, so that the first locking part is in locking fit with the limiting piece.
On the other hand, the utility model provides a cooking device, including door plant, box, locating part and locking mechanism, the door plant with the box rotates to be connected, the locating part set up in the box, just the locating part be equipped with be used for with first locking part locking complex second locking part.
According to the cooking appliance and the locking mechanism thereof, in the use process, the door plate can be further pulled to separate the first locking part from the second locking part only by utilizing the action of the switch assembly to release the locking cooperation of the first limiting part and the second limiting part, so that the door plate can be rotated and opened relative to the box body, the scalding problem caused by mistaken opening of the door can be avoided, and the safety coefficient is high; simultaneously, only need promote the door plant to making first locking part be close to second locking part, utilize second elasticity piece and the first piece that resets, can make first locking part and the cooperation of second locking part locking, the cooperation of first spacing portion and the spacing locking of second to can realize the locking of door plant and box, can not influence the normal operation of closing the door.
Drawings
Fig. 1 is a schematic structural diagram of a cooking appliance according to an embodiment;
FIG. 2 is a schematic structural diagram of a door panel of the cooking appliance of FIG. 1;
fig. 3 is a schematic structural view of a door panel and a stopper of the cooking appliance of fig. 1;
FIG. 4 is a schematic structural diagram of a locking mechanism of the cooking appliance of FIG. 1;
fig. 5, 7, 9, 11, 13, 15 and 17 are cross-sectional views of the cooking appliance of fig. 1 illustrating different engagement states of the switch assembly, the limit assembly and the locking assembly;
fig. 6, 8, 10, 12, 14, 16 and 18 are respectively H of the cooking appliance1、H2、H3、H4、H5、H6、H7A partially enlarged view of (a).
Description of reference numerals:
10. cooking appliance, 100, switch component, 110, pressing plate, 120, force application column, 130, first spring, 200, limiting component, 210, first moving part, 220, first elastic reset part, 230, first limiting part, 231, limiting protrusion, 240, first inclined body, 300, locking component, 310, second moving part, 311, first connecting body, 312, second connecting body, 320, second elastic reset part, 330, second limiting part, 331, limiting strip, 340, first locking part, 341, locking hook, surface, 1200, mounting groove, 2000, box body, 3000, limiting part, 3100, second locking part, 3110, second inclined body, 3111, first guiding inclined surface, 3112, upper end, 4000, pulling part, 5000, front plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "disposed on," "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured" to, or "fixedly coupled" to another element, it can be removably secured or non-removably secured to the other element. When an element is referred to as being "connected," "pivotally connected," to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms "first," "second," "third," and the like in the description herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.
It will also be understood that when interpreting elements, although not explicitly described, the elements are to be interpreted as including a range of errors which are within the acceptable range of deviation of the particular values as determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, without limitation.
As shown in fig. 1 to 4, in one embodiment, a locking mechanism of a cooking appliance 10 is provided, which includes a switch assembly 100, a limit assembly 200 and a locking assembly 300. A switch assembly 100 is utilized. The limiting assembly 200 and the locking assembly 300 can open (as shown in the direction a of fig. 1) and close (as shown in the direction B of fig. 1) the door panel 1000 relative to the box 2000. The position-limiting assembly 200 includes a first moving part 210 and a first elastic reset part 220 for resetting the first moving part 210, and the first moving part 210 is provided with a first position-limiting part 230; the locking assembly 300 comprises a second moving part 310 and a second elastic reset part 320 for enabling the second moving part 310 to reset, wherein the second moving part 310 is provided with a second limiting part 330 for limiting and matching with the first limiting part 230 and a first locking part 340 for locking and matching with a limiting part 3000 in the box body 2000; the first moving part 210 can move to separate the first position-limiting part 230 from the second position-limiting part 330 under the action of the switch assembly 100; the first moving part 210 can move to the position where the first position-limiting part 230 is matched with the second position-limiting part 330 under the action of the first elastic resetting part 220; the second moving member 310 can move under the action of the second elastic resetting member 320, so that the first locking portion 340 is locked and matched with the limiting member 3000.
When the door panel 1000 needs to be opened relative to the box 2000, the locking mechanism of the cooking appliance 10 of the above embodiment firstly needs to apply a corresponding acting force by using the switch assembly 100 to enable the first moving member 210 to overcome the elastic force of the first elastic reset member 220 and move relative to the door panel 1000 (as shown in the direction E of fig. 4), so as to enable the first limiting portion 230 and the second limiting portion 330 to be separated; then, a pulling force is applied to the door panel 1000, so that the second moving member 310 moves relative to the door panel 1000 (as shown in the direction F of fig. 4), and the first locking portion 340 is unlocked from the second locking portion 3100 of the stopper 3000 in the box 2000, so that the door panel 1000 can smoothly rotate relative to the box 2000 to open the door. When the door panel 1000 and the box body 2000 need to be locked, the door panel 1000 is only required to be pushed to enable the first locking portion 340 to be close to the second locking portion 3100 of the limiting member 3000, and the second moving member 310 is reset under the action of the second elastic resetting member 320 to enable the first locking portion 340 to be in locking fit with the second locking portion 3100; meanwhile, the first moving member 210 is reset under the action of the first elastic reset member 220, so that the first limit portion 230 and the second limit portion 330 are in limit fit, and the second moving member 310 cannot move relative to the door panel 1000, so that the door panel 1000 can be stably and reliably locked with the box body 2000 into a whole. In the use process of the locking mechanism of the cooking appliance 10, only by releasing the locking cooperation between the first limiting part 230 and the second limiting part 330 by the action of the switch assembly 100, the door panel 1000 can be further pulled to separate the first locking part 340 from the second locking part 3100, and the door panel 1000 can be rotated and opened relative to the box 2000, so that the problem of scalding caused by mistaken door opening can be avoided; meanwhile, the door plate 1000 is only required to be pushed to enable the first locking portion 340 to be close to the second locking portion 3100, the second elastic reset piece 320 and the first reset piece are utilized, the first locking portion 340 can be in locking fit with the second locking portion 3100, and the first limiting portion 230 and the second limiting portion 330 can be in locking fit, so that the door plate 1000 and the box body 2000 can be locked, and normal door closing operation cannot be influenced.
It should be noted that, the limiting cooperation of the first limiting portion 230 and the second limiting portion 330 can be realized by abutting cooperation or clamping cooperation, and it is only necessary to satisfy the cooperation of the first limiting portion 230 and the second limiting portion 330 that the second moving member 310 cannot move relative to the door panel 1000. The first moving part 210 and the second moving part 310 may be provided in the form of a moving block, a moving bar, etc.; the first and second elastic restoring members 220 and 320 may be provided as a spring, a reed, or the like having an elastic restoring function.
As shown in fig. 4 and 6, in one embodiment, the length direction of the first elastic restoring member 220 is arranged along the door opening direction (as shown in the direction a of fig. 1) of the door panel 1000, one end of the first elastic restoring member 220 abuts against one side of the first moving member 210, and the other end of the first elastic restoring member 220 abuts against the door panel 1000. Thus, when the switch assembly 100 applies a corresponding acting force to the first moving member 210, the first moving member 210 overcomes the elastic force of the first elastic restoring member 220 and moves toward the door opening direction relative to the door panel 1000, so as to drive the first position-limiting portion 230 to move toward the door opening direction relative to the second position-limiting portion 330, and further separate the first position-limiting portion 230 from the second position-limiting portion 330. Meanwhile, the arrangement direction of the first elastic reset piece 220 is consistent with the door opening direction of the door panel 1000, so that the first elastic reset piece 220 and the first moving piece 210 can be arranged in the door panel 1000 more compactly, the space is saved, and the door panel 1000 with a thinner thickness is suitable.
It should be noted that, the abutting of the first elastic resetting piece 220, the door panel 1000 and the first moving piece 210 may be a contact abutting, or may be an abutting realized after being connected through a mounting seat, and it is only necessary to satisfy that the first elastic resetting piece 220 can apply a corresponding acting force to the first moving piece 210.
Further, when first elasticity resets 220 and is the spring, in order to guarantee that can be accurate along opening the door the direction and stretch, can set up guide elements such as corresponding guide post on door plant 1000, establish the spring housing again on guide elements such as guide post, guarantee that the spring stretches the in-process and can not take place the skew, the effort that the spring was applied to first moving member 210 is steady all the time, guarantee the accuracy that first moving member 210 removed, and then guarantee that first spacing portion 230 can be accurate realize spacing cooperation or separation with spacing portion 330 of second.
Furthermore, in order to ensure that the first moving part 210 does not shift during the moving process, the door panel 1000 may further be provided with a guide rail, a guide sleeve and other guide structures to achieve guiding engagement with the first moving part 210, so that the moving track of the first moving part 210 is more accurate, and the first limiting part 230 is further ensured to be able to accurately achieve limiting engagement or separation with the second limiting part 330.
As shown in fig. 4, to ensure that the switch assembly 100 applies a corresponding forceWhen the first moving part 210 is moved, the first moving part 210 can move the first position-limiting part 230 to separate from the second position-limiting part 330. As shown in fig. 6, 8, 10 and 12, in one embodiment, one end of the first moving member 210 is provided with a first tilting body 240 which is tilted relative to the door opening direction. As shown in fig. 4, 6, 8, 10, 12, 14, 16, and 18, the first stopper 230 is provided as a stopper protrusion 231 provided at the other end of the first moving member 210. When the switch assembly 100 applies a force (the direction of the force can be shown in fig. 8, 10 and D of fig. 12)1As shown in the direction shown) to the first tilting body 240, the component force along the door opening direction makes the first tilting body 240 move towards the door opening direction, so as to drive the first moving member 210 towards the door opening direction (as shown in fig. 8 and E of fig. 10)1In the direction shown) to move the position-limiting protrusion 231 relative to the second position-limiting portion 330 in the door-opening direction (see E in fig. 8 and 10)1Direction shown) to separate the limiting protrusion 231 from the second limiting portion 330, so that the second moving member 310 can move relative to the door panel 1000 when being acted by an external force to separate the first locking portion 340 from the second locking portion 3100, thereby opening the door. The first inclined body 240 may be a sheet or a block.
As shown in fig. 5 and 6, in particular, the first moving member 210 is configured as a sliding block which is in sliding fit with the inner wall of the door panel 1000, the first tilting body 240 is disposed at the upper end of the sliding block, the limiting protrusion 231 is disposed at the lower end of the sliding block, and the first elastic resetting member 220 is disposed at the left side of the sliding block. When the switch assembly 100 applies a force to the first tilting body 240 from above, the slider is translated toward the left side against the elastic force of the first elastic restoring member 220, so that the restricting protrusion 231 is translated toward the left side to be separated from the second restricting portion 330. It should be noted that the upper end, the lower end, the left side and the right side of the present disclosure are only one embodiment for explaining the corresponding moving principle, and should not be construed as limiting the present application.
In one embodiment, when the first position-limiting portion 230 and the second position-limiting portion 330 are in position-limiting engagement, the first moving member 210 is disposed in the door panel 1000, so that the structural arrangement in the door panel 1000 can be more compact. And the other side of the first moving member 210 is in abutting engagement with the front plate 5000 (as shown in fig. 5). Thus, when the door is closed, the first moving member 210 is abutted by the front plate 5000 disposed at the edge of the opening of the box 2000, so that the first elastic restoring member 220 is in a compressed state, and the first limiting portion 230 can accurately and reliably realize limiting matching with the second limiting portion 330. When the switch assembly 100 is separated from the first moving part 210, so that the acting force applied to the first moving part 210 by the switch assembly 100 disappears, and under the action of the first elastic reset part 220, the first moving part 210 moves towards the door closing direction, and the other side of the first moving part 210 can protrude out of the door panel 1000 (as shown in fig. 13 to 16), wherein a through hole or a groove for extending the first moving part 210 can be arranged on the corresponding side of the door panel 1000; when the door needs to be closed, the door panel 1000 is pushed to enable the first locking portion 340 to be close to the second locking portion 3100 of the limiting member 3000, the front plate 5000 props against the other side of the first moving member 210 to enable the first moving member 210 to move towards the door opening direction, until the first locking portion 340 is in locking fit with the second locking portion 3100, the first moving member 210 retracts into the door panel 1000, the first limiting portion 230 can be in limiting fit with the second limiting portion 330 again, it is guaranteed that the second moving member 310 cannot think about the movement of the door panel 1000, and the door panel 1000 can be reliably and stably locked with the box body 2000 into a whole. The stopper 3000 may be provided at a side of the front plate 5000.
The limit engagement and disengagement of the first limit part 230 and the second limit part 330 and the lock engagement and disengagement of the first lock part 340 and the second lock part 3100 may be achieved by linear translation or by swing or rotation.
In one embodiment, the length direction of the second elastic restoring member 320 is disposed at an angle to the door opening direction of the door panel 1000. Thus, the second elastic reset piece 320 can apply an acting force to the second moving piece 310, so that the second moving piece 310 can reset, and then the first locking portion 340 can be in locking fit with the second locking portion 3100 in the door closing process. As shown in fig. 6, 8, 10, 12, 14, 16 and 18, the second moving part 310 includes a first connecting body 311 and a second connecting body arranged at an angleThe body 312, one end of the first connecting body 311 is connected to the second elastic reset element 320, and the second position-limiting portion 330 is configured as a position-limiting strip 331 disposed at the other end of the first connecting body 311. One end of the second connecting body 312 is connected to the other end of the first connecting body, and the other end of the second connecting body 312 protrudes out of the door panel 1000 and is provided with a first locking portion 340, wherein a through hole or a strip-shaped groove for extending out of the other end of the second connecting body 312 can be correspondingly arranged on the door panel 1000. And the first connecting body 311 is guided to cooperate with the door panel 1000, so that the first connecting body 311 can approach (see fig. 10, 14 and F of fig. 16)1Direction shown) or away (as shown by F in fig. 18)2Shown in direction) the first moving member 210 is reciprocally moved in direction. So, when spacing bar 331 and spacing protruding 231 wait the spacing cooperation of first spacing portion 230, can conflict spacing to first connector 311, thereby can restrict the relative door plant 1000 of first connector 311 and remove, also restrict the relative door plant 1000 of second connector 312 and remove, and then make first locking portion 340 and second locking portion 3100 stable, reliable locking cooperation, even exert external force pulling door plant 1000 and also can't relieve the locking cooperation between first locking portion 340 and the second locking portion 3100, thereby can't realize the operation of opening the door, avoid the problem that the scald appears after the door plant 1000 is opened in the maloperation.
The first and second connection bodies 311 and 312 may be provided in the shape of a bar, a plate, or a block. The guiding cooperation of the first connecting body 311 and the door panel 1000 can be achieved by arranging guide plates on both sides of the first connecting body 311, wherein the two guide plates arranged at an opposite interval form a guide groove, and the first connecting body 311 can be movably arranged in the guide groove.
Specifically, the first connecting body 311 is disposed along a vertical direction, and the second elastic reset piece 320 is disposed below the first connecting body 311 and connected to a bottom end of the first connecting body 311 (as shown in fig. 6, 8, 10, 12, 14, 16 and 18, preferably, the second elastic reset piece 320 is disposed along a vertical or approximately vertical direction, so that the acting force of the second elastic reset piece 320 is exerted on the first connecting body 311 as much as possible to ensure that the first locking portion 340 can be reliably reset to achieve locking engagement with the second locking portion 3100), as shown in fig. 4, 5, 7, 9, 11 and 13)As shown in fig. 15 and 17, the upper end of the first connecting body 311 is provided with a stopper 331, the second connecting body 312 is inclined toward the upper right, one end of the second connecting body 312 is connected to the other end of the first connecting body 311, and the other end of the second connecting body 312 is provided with a first locking portion 340. As shown in fig. 6, when the limiting protrusion 231 arranged above the limiting strip 331 is in limiting fit with the limiting strip 331, the first connecting body 311 can be abutted and limited, so that the first connecting body 311 can be limited to move upwards relative to the door panel 1000, the second connecting body 312 can be limited to move upwards relative to the door panel 1000, and further the first locking portion 340 cannot be separated from the second locking portion 3100, even if external force is applied to pull the door panel 1000, the locking fit between the first locking portion 340 and the second locking portion 3100 cannot be released, so that the door opening operation cannot be realized, and the problem of scalding after the door panel 1000 is opened by misoperation is avoided. When the switch assembly 100 disposed above the first tilting body 240 applies a force to the first tilting body 240 from above, the slider is translated towards the left side against the elastic force of the first elastic resetting member 220, so that the limiting protrusion 231 is translated towards the left side to be separated from the limiting strip 331 (as shown in fig. 8, 10 and 12); when the door panel 1000 is pulled in the door opening direction (as shown in the direction a of fig. 12), the second connection body 312 is allowed to be vertically upward (as shown in fig. 8, 10 and F of fig. 12) with respect to the door panel 10001Shown) move (simultaneously, as shown by F in fig. 8, 10 and 121As shown, the first connecting body 311 also moves vertically upward relative to the door panel 1000, and then pulls the second elastic reset piece 320 below), so that the first locking portion 340 is separated from the second locking portion 3100, and the door panel 1000 can be smoothly opened relative to the box 2000. When the door panel 1000 needs to be locked with the box body 2000, the door panel 1000 is pushed toward a direction (as shown in a direction B of fig. 14, 16 and 18) close to the box body 2000, so that the first locking portion 340 is close to the second locking portion 3100 of the stopper 3000, and the first connecting body 311 and the second connecting body 312 are vertically downward relative to the door panel 1000 under the action of the resetting force of the second elastic resetting piece 320 (as shown in a direction F of fig. 18)2Direction shown), wherein the second connecting body 312 is vertically downward with respect to the door panel 1000 only after the first locking portion 340 passes over the upper end of the second locking portion 3100, thereby making the second connecting body 312 move vertically downward with respect to the door panel 1000The first locking part 340 is locked and matched with the second locking part 3100; and, first moving member 210 resets and makes spacing protruding 231 and the spacing cooperation of spacing strip 331 under the effect of first elasticity piece 220 that resets to contradict first connector 311 once more, make first connector 311 and second connector 312 unable door plant 1000 removal relatively, make door plant 1000 can be stable, reliable and box 2000 locking as an organic whole.
In another embodiment, the second moving member 310 is rotatably connected to the door panel 1000 via a first rotating shaft (not shown), and the second elastic restoring member 320 is sleeved on the first rotating shaft and is in interference fit with the second moving member 310. In this way, the acting force of the second elastic reset piece 320 can act on the second moving piece 310, so that the second moving piece 310 can reset after rotating around the central axis of the first rotating shaft; the second elastic reset piece 320 may be a torsion spring sleeved on the first rotating shaft; the torsion spring is sleeved on the first rotating shaft, a mounting hole for the first rotating shaft to be inserted is formed in the corresponding position of the second moving member 310, and two support sections of the torsion spring are respectively abutted against the door panel 1000 and the second moving member 310. When the second moving member 310 rotates around the central axis of the first rotating shaft to the first position relative to the door panel 1000, the first locking portion 340 is separated from the limiting member 3000, and the second limiting portion 330 is separated from the first limiting portion 230. Thus, when the door needs to be opened, the switch assembly 100 applies an acting force to the first moving member 210 to enable the first limiting portion 230 to move relative to the second limiting portion 330, namely, after the first limiting portion 230 is contacted with the limiting matching of the second limiting portion 330, the door panel 1000 is pulled, so that the first locking portion 340 and the second locking portion 3100 of the limiting member 3000 are separated, the second moving member 310 rotates around the central axis of the first rotating shaft, the second limiting portion 330 is enabled to be displaced and further separated relative to the first limiting portion 230, and after the first locking portion 340 and the second locking portion 3100 are completely separated, the door panel 1000 can be smoothly opened relative to the box body 2000. When the second moving member 310 rotates around the central axis of the first rotating shaft to the second position relative to the door panel 1000, the second limiting portion 330 is in limiting fit with the first limiting portion 230, and the first locking portion 340 is in locking fit with the limiting member 3000. Thus, when the door needs to be closed, the door panel 1000 is pushed to move towards the direction close to the box body 2000, so that the first locking portion 340 and the second locking portion 3100 are close to each other, under the action of the elastic reset force of the second elastic reset piece 320, the first locking portion 340 and the second locking portion 3100 are in locking fit, the second limiting portion 330 and the first limiting portion 230 move to be in limiting fit, so that the door panel 1000 and the box body 2000 can be locked into a whole, at the moment, the second rotating piece cannot rotate around the central axis of the first rotating shaft due to the limiting effect of the first limiting portion 230 and the second limiting portion 330, even if the door panel 1000 is pulled, the first locking portion 340 and the second locking portion 3100 cannot be separated, and the door panel 1000 cannot be opened relative to the box body 2000. The limit matching between the first limit part 230 and the second limit part 330 can be realized by the clamping matching between the clamping hook and the clamping hook, and the second moving part 310 can not rotate around the central axis of the first rotating shaft only when the limit matching between the first limit part 230 and the second limit part 330 is satisfied.
The application of force to the first moving member 210 by the switch assembly 100 can be achieved by pressing or pulling, or by rotating or toggling.
On the basis of any of the above embodiments, the switch assembly 100 includes a force-receiving member and a third elastic restoring member for restoring the force-receiving member, and the force-receiving member is provided with a force-applying portion for applying a force to the first moving member 210. Thus, after the external acting force is applied to the stressed member, the force is transmitted to the first moving member 210 through the force applying portion, so that the first moving member 210 moves, and the first position-limiting portion 230 is separated from the second position-limiting portion 330. Meanwhile, after the application of force is completed, under the action of the third elastic reset piece, the stressed piece is reset, so that the stressed piece is convenient to use next time, and the first moving piece 210 can be reset smoothly, so that the first limiting portion 230 and the second limiting portion 330 are in limited fit again. The third elastic reset piece can be an element with an elastic reset function, such as a spring, a reed and the like, and only the requirement that the stressed piece can be reset is met.
As shown in fig. 4, 8, 10 and 12, the force receiving member is a pressing plate 110, the third elastic restoring member is a first spring 130, the force applying portion is a force applying column 120, the first spring 130 is sleeved on the force applying column 120, one end of the first spring 130 abuts against the pressing plate 110, and the other end of the first spring 130 abuts against the door panel 1000. Thus, the pressing surface of the pressing plate 110 is pressed, so that the pressing plate 110 overcomes the elastic force of the first spring 130 and moves downward, thereby driving the force application column 120 to move downward, the force application column 120 applies a downward force to the first tilting body 240, so that the slider overcomes the elastic force of the first elastic restoring piece 220 and translates toward the left side, and the limiting protrusion 231 translates toward the left side and separates from the limiting strip 331. After the acting force applied to the pressing plate 110 disappears, the pressing plate 110 is restored under the elastic restoring force of the first spring 130, so that the next use is facilitated.
As shown in fig. 2, 8, 10 and 12, in order to facilitate the installation of the pressing plate 110 and the first spring 130, an installation groove 1200 for installing the pressing plate 110 may be formed at a corresponding portion of the door panel 1000, a through hole (not labeled) for passing the force application column 120 may be further formed in a bottom wall of the installation groove 1200, one end of the first spring 130 abuts against the pressing plate 110, and the other end of the first spring 130 abuts against the bottom wall of the installation groove 1200. In this way, when the pressing plate 110 is pressed, the urging rod 120 can pass through the through hole and act on the first inclined body 240, and when the pressing force disappears, the pressing plate 110 can be moved upward (see D in fig. 14)2Direction shown) to reset. Meanwhile, in order to avoid the damage of the excessive pressing force to the first spring 130, a corresponding limit structure may be further disposed on the pressing plate 110 to limit the stroke of the pressing plate 110. The limit structure can be a limit column or a limit block arranged at the side of the pressing plate 110, and the stroke of the pressing plate 110 is limited by the limit cooperation of the limit column or the limit block and the bottom wall of the mounting groove 1200.
As shown in fig. 13 to 18, further, when the pressing plate 110 is returned, the pressing surface of the pressing plate 110 can be flush with the surface 1100 of the door panel 1000. Thus, the surface 1100 of the door panel 1000 (which may be the upper surface of the door panel 1000) can be kept flat, and the appearance quality of the door panel 1000 is good after the door is opened, and the door panel 1000 is not easily interfered with the closing of the door.
As shown in fig. 1 to 4, in an embodiment, there is further provided a cooking appliance 10, which includes a door panel 1000, a box 2000, a limiting member 3000 and the locking mechanism of any of the above embodiments, wherein the door panel 1000 is rotatably connected to the box 2000, the limiting member 3000 is disposed in the box 2000, and the limiting member 3000 is provided with a second locking portion 3100 for locking and cooperating with the first locking portion 340.
In the use process of the cooking appliance 10 of the above embodiment, only by releasing the locking cooperation between the first limiting portion 230 and the second limiting portion 330 by the action of the switch assembly 100, the door panel 1000 can be further pulled to separate the first locking portion 340 from the second locking portion 3100, and the door panel 1000 can be rotated and opened relative to the box 2000, so that the problem of scalding caused by mistaken door opening can be avoided, and the safety coefficient is high; meanwhile, the door plate 1000 is only required to be pushed to enable the first locking portion 340 to be close to the second locking portion 3100, the second elastic reset piece 320 and the first reset piece are utilized, the first locking portion 340 can be in locking fit with the second locking portion 3100, and the first limiting portion 230 and the second limiting portion 330 can be in locking fit, so that the door plate 1000 and the box body 2000 can be locked, and normal door closing operation cannot be influenced.
It should be noted that the cooking appliance 10 may be a microwave oven, an oven, or the like. The door panel 1000 is rotatably connected to the case 2000 by a hinge or a hinge. The limiting member 3000 may be a limiting block or a limiting strip 331 disposed on the inner wall of the case 2000. The locking cooperation of the first locking portion 340 and the second locking portion 3100 can be realized by the form of the locking hook cooperating with the locking tongue. In order to ensure that the door panel 1000 can be reliably locked with the box 2000, at least two locking mechanisms may be disposed along the height direction of the door panel 1000.
As shown in fig. 1 to 3 and 5 to 18, in one embodiment, the cooking appliance 10 further includes a pulling member 4000 connected to the door panel 1000. Therefore, the door panel 1000 can be conveniently and quickly pushed and pulled by the pulling piece 4000, so that the door panel 1000 can be conveniently opened and closed, and the operation is convenient; the pulling member 4000 may be a handle or a buckle, and is fixed to a corresponding position of the door panel 1000 by riveting or bolting. As shown in fig. 8, 10 and 12, an installation groove 1200 for installing the switch assembly 100 is formed on the upper side surface of the door panel 1000, and the pulling member 4000 is disposed corresponding to the installation groove 1200. Thus, the door panel 1000 can be conveniently opened by one hand; for example, the door panel 1000 can be opened by only grasping the pulling member 4000 with the four fingers of the right hand and pressing the pressing plate 110 with the thumb to apply a force to the first tilting body 240 by the force applying column 120 so as to separate the limiting protrusion 231 from the limiting bar 331, and then pulling the pulling member 4000 to separate the first locking portion 340 from the second locking portion 3100. When the door is closed, the thumb releases the pressing plate 110 to push the pulling piece 4000, so that the first locking part 340 is locked and matched with the second locking part 3100 again, the limiting protrusion 231 is matched with the limiting strip 331 again in a limiting way, the door panel 1000 and the box body 2000 can be reliably and stably locked into a whole, and even if the pulling piece 4000 is pulled, the door cannot be opened.
It should be noted that, the corresponding arrangement of the pulling member 4000 and the mounting groove 1200 may be the vertical arrangement of the pulling member 4000, or the horizontal arrangement of the pulling member 4000, and only a finger of a single hand needs to be able to grip the pulling member 4000 at the same time, i.e., apply an acting force to the switch assembly 100.
The locking cooperation of first locking portion 340 and second locking portion 3100 can be realized through latch hook and spring bolt complex form, also can realize through pothook and buckle joint complex mode, only need satisfy can realize stable locking and atress can be smooth and easy the separation can.
As shown in fig. 6, 8, 10, 12, 14, 16, and 18, in one embodiment, the second lock portion 3100 is provided as a second inclined body 3110 inclined with respect to the door closing direction, and the first lock portion 340 is provided as a lock hook 341 capable of locking engagement with the second inclined body 3110. Thus, when the door panel 1000 is pushed to move the latch hook 341 in the tilting direction of the second tilting body 3110 (as shown in the direction G of fig. 14), the latch hook moves downward by the second elastic restoring member 320 after passing over the upper end 3112 of the second tilting body 3110 (as shown in F of fig. 18)2Direction shown) so that the hook lock can be brought into locking engagement with the second sloping body 3110 and thus closing of the door is achieved. When the door panel 1000 is pulled after the first position-limiting portion 230 is separated from the second position-limiting portion 330The pulling force makes the hook latch move upward against the acting force of the second elastic restoring member 320, and then makes the hook latch separate from the second inclined body 3110, thereby enabling the door to be opened. The second inclined body 3110 may be sheet-shaped or block-shaped.
As shown in fig. 10, 12, 14 and 16, the second inclined body 3110 is further provided with a first guide inclined surface 3111, and as shown in fig. 4, the latch hook 341 is provided with a second guide inclined surface 3411 for guiding engagement with the first guide inclined surface 3111. Thus, when door panel 1000 is pushed to move latch hook 341 toward the direction close to second tilting body 3110, by using the guiding fit between second guiding inclined surface 3411 and first guiding inclined surface 3111, not only can the friction between latch hook 341 and second tilting body 3110 be reduced, so that the door can be closed more easily and smoothly, but also latch hook 341 can be guided to pass over the upper end of second tilting body 3110 and then to be locked with second tilting body 3110, thereby ensuring that door panel 1000 can be reliably and accurately locked with box 2000 as a whole.
As shown in fig. 4, further, the latch hook 341 is provided with a third guide inclined surface 3412 for guide-fitting with the upper end 3112 of the second inclined body 3110. In this way, when the door panel 1000 is pulled after the first stopper 230 and the second stopper 330 are separated, the third guide inclined surface 3412 is guided and engaged with the upper end 3112 of the second inclined body 3110, so that the hook lock can smoothly pass over the upper end 3112 of the second inclined body 3110, and the hook latch 341 can smoothly separate from the second inclined body 3110 to release the locking engagement between the hook latch 341 and the second inclined body 3110, thereby smoothly opening the door. The third guide slope 3412 and the first guide slope 3111 may be disposed at both sides of the latch hook 341.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (14)
1. A locking mechanism of a cooking appliance, comprising:
a switch assembly;
the limiting assembly comprises a first moving piece and a first elastic resetting piece for enabling the first moving piece to reset, and the first moving piece is provided with a first limiting part; and
the locking assembly comprises a second moving piece and a second elastic reset piece for enabling the second moving piece to reset, and the second moving piece is provided with a second limiting part for limiting and matching with the first limiting part and a first locking part for locking and matching with the limiting part in the box body;
the first moving part can move to enable the first limiting part and the second limiting part to be separated under the action of the switch assembly; the first moving part can move to enable the first limiting part to be in limiting fit with the second limiting part under the action of the first elastic resetting part; the second moving piece can move under the action of the second elastic reset piece, so that the first locking part is in locking fit with the limiting piece.
2. The locking mechanism of the cooking appliance according to claim 1, wherein the first elastic reset member is disposed along a door opening direction of the door panel, one end of the first elastic reset member abuts against one side of the first moving member, and the other end of the first elastic reset member abuts against the door panel.
3. The locking mechanism of a cooking appliance as claimed in claim 2, wherein one end of the first moving member is provided with a first tilting body which is tilted with respect to the door opening direction, the first position-limiting portion is provided as a position-limiting protrusion which is provided at the other end of the first moving member, and when the switch assembly applies a force to the first tilting body, the first moving member moves toward the door opening direction, so that the position-limiting protrusion is separated from the second position-limiting portion.
4. The locking mechanism of the cooking appliance according to claim 2, wherein when the first position-limiting portion is in position-limiting engagement with the second position-limiting portion, the first moving member is disposed in the door panel, and the other side of the first moving member is in abutting engagement with the front plate; when the switch assembly is separated from the first moving member, the other side of the first moving member can protrude out of the door panel.
5. The locking mechanism of the cooking appliance according to any one of claims 1 to 4, wherein the length direction of the second elastic reset member is arranged at an angle with the door opening direction of the door panel, the second moving member comprises a first connecting body and a second connecting body arranged at an angle, one end of the first connecting body is connected with the second elastic reset member, the second limiting portion is arranged as a limiting strip arranged at the other end of the first connecting body, one end of the second connecting body is connected with the other end of the first connecting body, the other end of the second connecting body protrudes out of the door panel and is provided with the first locking portion, and the first connecting body and the door panel are in guiding fit, so that the first connecting body can move back and forth in a direction close to or far away from the first moving member.
6. The locking mechanism of the cooking appliance as claimed in any one of claims 1 to 4, wherein the second moving member is rotatably connected to the door panel via a first rotating shaft, and the second elastic resetting member is sleeved on the first rotating shaft and is in interference fit with the second moving member; when the second moving member rotates to a first position around the central axis of the first rotating shaft relative to the door panel, the first locking part is separated from the limiting member, and the second limiting part is separated from the first limiting part; when the second moving member rotates to a second position around the central axis of the first rotating shaft relative to the door panel, the second limiting portion is in limiting fit with the first limiting portion, and the first locking portion is in locking fit with the limiting piece.
7. The locking mechanism of cooking appliance according to any one of claims 1 to 4, wherein the switch assembly comprises a force receiving member and a third elastic reset member for resetting the force receiving member, and the force receiving member is provided with a force application portion for applying force to the first moving member.
8. The locking mechanism of the cooking appliance as claimed in claim 7, wherein the force receiving member is a pressing plate, the third elastic restoring member is a first spring, the force applying portion is a force applying column, the first spring is sleeved on the force applying column, one end of the first spring abuts against the pressing plate, and the other end of the first spring abuts against the door panel.
9. The locking mechanism of the cooking appliance according to claim 8, wherein the pressing surface of the pressing plate can be flush with the surface of the door panel when the pressing plate is reset.
10. An electric cooking appliance, characterized in that, including a door panel, a box body, a limiting member and the locking mechanism of any one of claims 1 to 9, the door panel is rotatably connected with the box body, the limiting member is disposed in the box body, and the limiting member is provided with a second locking portion for locking and cooperating with the first locking portion.
11. The cooking appliance according to claim 10, further comprising a pulling member connected to the door panel, wherein an installation groove for installing the switch assembly is formed on an upper side of the door panel, and the pulling member is disposed corresponding to the installation groove.
12. The cooking appliance according to claim 10 or 11, wherein the second locking portion is provided as a second tilting body which is tilted with respect to the door closing direction, and the first locking portion is provided as a locking hook which can be locked and engaged with the second tilting body.
13. The cooking appliance according to claim 12, wherein the second tilting body is provided with a first guiding bevel and the locking hook is provided with a second guiding bevel for guiding engagement with the first guiding bevel.
14. The cooking appliance according to claim 12, wherein the latch hook is provided with a third guiding bevel for guiding engagement with an upper end of the second tilting body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010097636.8A CN111236774B (en) | 2020-02-17 | 2020-02-17 | Cooking appliance and locking mechanism thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010097636.8A CN111236774B (en) | 2020-02-17 | 2020-02-17 | Cooking appliance and locking mechanism thereof |
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| CN111236774A true CN111236774A (en) | 2020-06-05 |
| CN111236774B CN111236774B (en) | 2021-08-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023087479A1 (en) * | 2021-11-17 | 2023-05-25 | 广东美的厨房电器制造有限公司 | Lock structure and cooking appliance |
| WO2023178731A1 (en) * | 2022-03-22 | 2023-09-28 | 广东美的厨房电器制造有限公司 | Door lock device and electric cooking appliance |
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| WO2023087479A1 (en) * | 2021-11-17 | 2023-05-25 | 广东美的厨房电器制造有限公司 | Lock structure and cooking appliance |
| WO2023178731A1 (en) * | 2022-03-22 | 2023-09-28 | 广东美的厨房电器制造有限公司 | Door lock device and electric cooking appliance |
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|---|---|
| CN111236774B (en) | 2021-08-31 |
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