Door opening and closing structure and cooking device

Abstract

The utility model discloses a door body opening and closing structure and cooking equipment, including door body, be provided with first locking portion on the door body, locking mechanism, locking mechanism includes installation support, driving part, locking piece and unlocking piece, and installation support is provided with the locking position for the first locking portion to stretch in, driving part, locking piece and locking piece all install in installation support, and driving part is used for driving unlocking piece to move close to or away from locking piece to drive locking piece to move close to or away from locking position. Cooking equipment, including the door body opening and closing structure and cooking body, and installation support installs in the cooking body, and the door body is used for closing or opening the cooking opening of cooking body. The utility model can drive unlocking piece to move through the driving part of locking mechanism to link up locking piece and the locking portion of door body to unlock or lock, and through driving part control, convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of door opening and closing technology, and in particular to a door opening and closing structure and a cooking device. Background Technology

[0002] Currently, cooking appliances typically heat the interior of the cooking chamber through an internal heating structure. During the heating process, the door on the cooking appliance must be fully closed before the internal heating structure can be opened; otherwise, burns or heat loss may occur.

[0003] The door of the cooking appliance is locked to the cooking appliance body through an opening and closing mechanism. In some related technologies, the opening and closing mechanism of the door is mainly achieved by locking or disengaging the door hook with the cooking appliance body. This usually relies on manual opening and closing. Because it is manual, it cannot be linked with the heating structure of the cooking appliance body, which can easily lead to burns during operation. Utility Model Content

[0004] In order to overcome at least one of the defects mentioned above in the prior art, the present invention provides a door opening and closing structure and a cooking device, which can drive the unlocking part to move through the driving component of the locking mechanism, so as to unlock or lock the locking part of the door in conjunction with the locking component. The operation is convenient because it is controlled by the driving component.

[0005] The technical solution adopted by this utility model to solve its problem is: The door opening and closing structure includes, The door body is provided with a first locking part; A locking mechanism includes a mounting bracket, a driving component, a locking component, and an unlocking component. The mounting bracket is provided with a locking position into which the first locking part extends. The driving component, the locking component, and the locking component are all mounted on the mounting bracket. The driving component is used to drive the unlocking component to move closer to or away from the locking component, and the locking component can move closer to or away from the locking position.

[0006] As an optional implementation, the driving component includes a drive motor and a transmission component. The shaft of the drive motor is connected to the transmission component and is used to drive the transmission component to rotate. The unlocking component is connected to the transmission component. The transmission component is used to drive the unlocking component to move closer to or further away from the locking component in a straight line when rotating.

[0007] As an optional implementation, the transmission component includes a transmission rod, one end of which is connected to the shaft of the drive motor, and the other end of which is hinged to one end of the unlocking component. The bottom end of the unlocking component is connected to the mounting bracket and can slide along the straight direction. The bottom end of the unlocking component is provided with a sliding part, and the mounting bracket is provided with a sliding groove. The sliding part is slidably mounted in the sliding groove.

[0008] As an optional implementation, the end of the unlocking member is provided with a pressing block, and the locking member is provided with a pressure-receiving slope; the pressing block is used to press against the pressure-receiving slope when it approaches the locking member.

[0009] As an optional implementation, one end of the locking member is rotatably connected to the mounting bracket, and the other end of the locking member is provided with a second locking part. The unlocking member is used to press against the locking member after moving close to the locking member, so as to drive the second locking part away from the locking position.

[0010] As an optional implementation, the locking mechanism further includes an elastic member, one end of which is connected to the mounting bracket, and the other end of which abuts against the locking member and provides elastic stress to drive the locking member toward the locking position.

[0011] As an optional implementation, the mounting bracket is provided with a guide groove, the locking member is provided with a guide post, the guide groove extends along the rotation direction of the locking member, and the guide post is slidably connected to the guide groove.

[0012] As an optional implementation, two locking elements are provided, and the two locking elements are spaced apart.

[0013] As an optional implementation, the locking mechanism further includes a detection switch for abutting against the unlocking element and sending a detection signal.

[0014] A cooking device, including the aforementioned door opening and closing structure and a cooking body, wherein the mounting bracket is installed on the cooking body; the door is used to close or open the cooking opening of the cooking body.

[0015] In summary, this utility model has the following technical effects: When opening the door, it is necessary to unlock the locking element and the first locking part. At this time, the drive unit is activated. Driven by the drive unit, the unlocking element moves closer to the locking element and can also press against the locking element, driving the locking element away from the locked position. In this way, the locking element can disengage from the first locking part under the action of the unlocking element, thus unlocking the door. The door can then be opened, completing the automatic unlocking. Compared with directly relying on pulling the door to force the first locking part and the locking element to disengage, using the drive unit to drive the unlocking element to unlock is less likely to cause damage to the locking structure due to hard force. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the closed state of the door opening and closing structure of this utility model; Figure 2 This is a schematic diagram of the door opening and closing structure of this utility model in the closed state from another perspective; Figure 3 This is a schematic diagram of the locking mechanism of the door in the closed state according to this utility model; Figure 4 This is a schematic diagram of the locking mechanism of the door in the closed state according to this utility model; Figure 5 This is a schematic diagram of the locking mechanism of the door in the closed state from another perspective. Figure 6 This is a partial structural diagram of the locking mechanism of the door in the closed state according to this utility model; Figure 7 This is a schematic diagram of the open state of the door opening and closing structure of this utility model; Figure 8 This is a cross-sectional view of the door opening and closing structure of this utility model in the open state; Figure 9 This is a schematic diagram of the locking mechanism of the door in the open state according to this utility model; Figure 10 This is a partial structural diagram of the locking mechanism of the door in the open state according to this utility model.

[0018] The reference numerals in the attached drawings have the following meanings: 10, door body; 11, first locking part; 20, locking mechanism; 21, mounting bracket; 211, slide groove; 212, locking position; 213, guide groove; 22, driving component; 221, transmission rod; 222, drive motor; 23, unlocking component; 231, sliding part; 232, top pressure block; 24, locking component; 241, elastic component; 242, second locking part; 243, guide post; 244, pressure inclined surface; 25, detection switch; 30, cooking machine body. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0021] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0022] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0023] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0024] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0025] Example 1, See Figures 1-10 This utility model discloses a door opening and closing structure, including a door body 10 and a locking mechanism 20, wherein a first locking part 11 is provided on the door body 10. The locking mechanism 20 includes a mounting bracket 21, a driving member 22, a locking member 24, and an unlocking member 23. The mounting bracket 21 is provided with a locking position 212, and the first locking part 11 of the door body 10 can extend into the locking position 212 of the mounting bracket 21.

[0026] The aforementioned driving member 22, locking member 24, and locking member 24 are all mounted on the mounting bracket 21. The driving member 22 can drive the unlocking member 23 to move closer to or away from the locking member 24, and the locking member 24 can move closer to or away from the locking position 212. After the unlocking member 23 moves closer to the locking member 24, it can press against the locking member 24, driving the locking member 24 away from the locking position 212. After the locking member 24 moves away from the locking position 212, it can disengage from the first locking part 11 of the locking position 212. After the unlocking member 23 moves away from the locking member 24, the locking member 24 can move closer to the locking position 212, and after moving closer to the locking position 212, it can remain locked with the first locking part 11 located at the locking position 212.

[0027] Based on the above structure, when using the door opening and closing structure of this utility model, the door opening and closing structure can be used in cooking equipment, such as microwave ovens, ovens, microwave-steam-grill combination ovens, etc. The mounting bracket 21 of the locking mechanism 20 is installed on the cooking body 30, and the door 10 can be installed on the cooking body 30 for closing or opening the cooking opening of the cooking body 30.

[0028] When the cooking appliance 30 is cooking, the door 10 can be closed to the cooking opening of the cooking appliance 30. When the door is closed, the first locking part 11 on the door can extend into the locking position 212 on the mounting bracket 21 of the cooking appliance 30. The locking member 24 can move close to the locking position 212, and the locking member 24 can maintain the locking state with the first locking part 11 of the locking position 212. In this way, the door 10 can be kept closed under the locking action of the locking member 24 and the first locking part 11.

[0029] When the door 10 is opened, the locking member 24 and the first locking part 11 need to be unlocked. At this time, the driving member 22 is activated. Under the drive of the driving member 22, the unlocking member 23 moves closer to the locking member 24. The unlocking member 23 can also press against the locking member 24, driving the locking member 24 away from the locking position 212. In this way, the locking member 24 can be disengaged from the first locking part 11 under the action of the unlocking member 23, thus unlocking. The door 10 can then be opened, completing the automatic unlocking. Compared with directly relying on pulling the door 10 to force the first locking part 11 and the locking member 24 to disengage and unlock, the unlocking is achieved by the driving member 22 driving the unlocking member 23 to move, which is less likely to cause damage to the locking structure due to hard force.

[0030] Of course, after the door 10 is opened, the locking member 24 and the first locking part 11 are unlocked. The driving member 22 can drive the unlocking member 23 away from the locking member 24, and the locking member 24 can move closer to the locking position 212 and return to the locking position 212, so that when the door 10 is closed next time, the first locking part 11 can extend into the locking position 212 to lock.

[0031] As an optional implementation, the driving component 22 includes a driving motor 222 and a transmission component, with the rotating shaft of the driving motor 222 connected to the transmission component, and the rotating shaft of the driving motor 222 capable of driving the transmission component to rotate. The unlocking component 23 is connected to the transmission component; when the transmission component rotates, it drives the unlocking component 23 to move closer to or further away from the locking component 24 in a straight line.

[0032] Based on this structure, when unlocking, the drive motor 222 is started. The shaft of the drive motor 222 drives the transmission component to rotate. The rotation of the transmission component can guide the unlocking component 23 to approach the locking component 24 in a straight line, thereby pressing the locking component 24 and driving the locking component 24 to disengage from the first locking part 11.

[0033] In this way, the rotational motion of the transmission component guides the unlocking component 23 to move in a straight line. The rotational transmission may slip or elastically deform under overload, forming a natural buffer and preventing damage to the locking mechanism 20. Furthermore, the transmission component includes a transmission rod 221, one end of which is connected to the shaft of the drive motor 222, and the other end of which is hinged to one end of the unlocking component 23. The bottom end of the unlocking component 23 is connected to the mounting bracket 21 and can slide in a straight line. The bottom end of the unlocking component 23 is provided with a sliding part 231, and the mounting bracket 21 is provided with a sliding groove 211. The sliding part 231 is slidably mounted in the sliding groove 211.

[0034] During the unlocking action, the transmission rod 221 can rotate under the drive of the shaft of the drive motor 222. Since the transmission rod 221 is hinged to the end of the unlocking member 23, there is a tendency for the transmission rod 221 to rotate relative to the transmission rod 221 during the rotation process. The unlocking member 23 slides with the slide groove 211 through the sliding part 231. Therefore, the rotation of the transmission rod 221 can guide the sliding part 231 of the unlocking member 23 to slide in the slide groove 211, thereby enabling the unlocking member 23 to move closer to or further away from the locking member 24 in a straight line.

[0035] In some implementations, the sliding part 231 may include a slide rail or a slider, which slides within the slide groove 211 to guide the unlocking member 23 to move in a straight line.

[0036] Of course, the driving component 22 may also include a drive motor 222 and a cam structure. In this way, the drive motor 222 drives the cam structure to rotate, and the cam's protruding structure can press against the unlocking component 23, driving the unlocking component 23 to approach the locking component 24 to complete the unlocking action. In other embodiments, the driving component 22 may also include a crank-connecting rod structure. The rotating shaft of the drive motor 222 drives the crank to rotate, and the crank-connecting rod links the unlocking component 23 to move in a linear direction.

[0037] As an optional implementation, a pressing block 232 can also be provided at the end of the unlocking member 23. The outer diameter of the pressing block 232 can be larger than the outer diameter of the unlocking member 23. In this way, after the unlocking member 23 moves close to the locking member 24, the pressing block 232 has a larger contact area. Under the pressing action of the pressing block 232, the locking member 24 is more likely to be disengaged from the first locking part 11, and the unlocking action is faster.

[0038] Specifically, a pressure-receiving inclined surface 244 can be provided on the locking member 24. The pressing block 232 is used to press the pressure-receiving inclined surface 244 after approaching the locking member 24. The pressure-receiving inclined surface 244 can decompose the longitudinal force into the transverse force, making it easier to drive the locking member 24 to disengage from the first locking part 11.

[0039] As an optional implementation, one end of the locking member 24 is rotatably connected to the mounting bracket 21, and the other end of the locking member 24 is provided with a second locking part 242. The unlocking member 23 can press against the locking member 24 after moving close to the locking member 24, so as to drive the second locking part 242 away from the locking position 212.

[0040] During unlocking, the unlocking member 23 presses against the locking member 24, causing the locking member 24 to rotate away from the locking position 212. When it moves away from the locking position 212, the second locking part 242 can disengage from the first locking part 11 at the locking position 212, completing the unlocking process. Since the disengagement of the second locking part 242 from the first locking part 11 is achieved by rotation, that is, disengagement along an arc-shaped trajectory, it can gradually push the first locking part 11 along the tangent of the arc trajectory during rotation, achieving rapid disengagement and making the unlocking action smoother.

[0041] As an optional implementation, the locking mechanism 20 further includes an elastic member 241. One end of the elastic member 241 is connected to the mounting bracket 21, and the other end of the elastic member 241 abuts against the locking member 24 and provides elastic stress to drive the locking member 24 to move closer to the locking position 212. Thus, under the action of the elastic member 241, the second locking part 242 of the locking member 24 can be kept in a state close to the locking position 212. When the door 10 is closed, the door 10 is closed in the cooking machine body 30 under the action of external force. Under the action of external force, the first locking part 11 extends into the locking position 212. The first locking part 11 can first push against the second locking part 242. At this time, the elastic member 241 is compressed. After the first locking part 11 is in place, the elastic member 241 resets and drives the second locking part 242 to remain close to the locking position 212 and lock to the first locking part 11, maintaining the locked state. The locked state is stable.

[0042] As an optional implementation, a guide groove 213 can be provided on the mounting bracket 21, and a guide post 243 can be provided on the locking member 24. The guide groove 213 extends along the rotation direction of the locking member 24, and the guide post 243 is slidably connected to the guide groove 213. In this way, when the locking member 24 rotates, the guide post 243 slides in the guide groove 213. The locking and unlocking process of the locking member 24 is stable and not easy to deviate, so the unlocking and locking can be completed accurately.

[0043] As an optional implementation, two locking members 24 are provided, with the two locking members 24 spaced apart. The position between the two locking members 24 can be the locking position 212. When locking, the two locking members 24 can be locked on both sides of the first locking part 11, so that the locking state is more stable.

[0044] When there are two locking members 24, the unlocking member 23 can move between the two locking members 24. When the unlocking member 23 unlocks, the pressing block 232 of the unlocking member 23 can simultaneously press the pressure slope 244 of the two locking members 24, thus completing the unlocking action of the two locking members 24 at the same time.

[0045] It should be noted that in some implementation structures, the first locking part 11 can be a locking plate, and the second locking part 242 can be a locking hook. Locking openings are provided on both sides of the locking plate, the locking plate extends into the locking position 212, and the locking hook can approach the locking plate and lock in the locking opening.

[0046] As an optional implementation, the locking mechanism 20 also includes a detection switch 25, which can abut against the unlocking member 23 and send a detection signal. Specifically, when the door 10 closes the cooking opening of the cooking unit 30, the drive member 22 returns to its original position, and the locking member 24 approaches the locking position 212 and locks itself onto the first locking part 11 extending into the locking position 212 on the door 10. In this state, the door 10 is locked in place. At this time, the unlocking member 23 returns to its original position and touches the detection switch 25, sending a detection signal to indicate that the door 10 is closed in place. The heating structure of the cooking unit 30 can also start heating based on the detection signal indicating that the door 10 is closed in place, thus preventing cooking due to the door 10 not being fully closed, making it safer to use.

[0047] Example 2, The cooking device includes the door opening and closing structure of Embodiment 1 and the cooking body 30, with the mounting bracket 21 installed on the cooking body 30; the door 10 is used to close or open the cooking opening of the cooking body 30.

[0048] This door opening and closing structure is used in cooking equipment, such as microwave ovens, ovens, and microwave-steam-grill combos. The mounting bracket 21 of the locking mechanism 20 is mounted on the cooking body 30, and the door 10 is mounted on the cooking body 30 to close or open the cooking opening. In some related embodiments, the door 10 is rotatably mounted on the cooking body 30, closing or opening the cooking opening during rotation.

[0049] When the cooking appliance 30 is cooking, the door 10 can be closed to the cooking opening of the cooking appliance 30. When the door is closed, the first locking part 11 on the door can extend into the locking position 212 on the mounting bracket 21 of the cooking appliance 30. The locking member 24 can move close to the locking position 212, and the locking member 24 can maintain the locking state with the first locking part 11 of the locking position 212. In this way, the door 10 can be kept closed under the locking action of the locking member 24 and the first locking part 11.

[0050] When the door 10 is opened, the locking member 24 and the first locking part 11 need to be unlocked. At this time, the driving member 22 is activated. Under the drive of the driving member 22, the unlocking member 23 moves closer to the locking member 24. The unlocking member 23 can also press against the locking member 24, driving the locking member 24 away from the locking position 212. In this way, the locking member 24 can be disengaged from the first locking part 11 under the action of the unlocking member 23, thus unlocking. The door 10 can then be opened, completing the automatic unlocking. Compared with directly relying on pulling the door 10 to force the first locking part 11 and the locking member 24 to disengage and unlock, the unlocking is achieved by the driving member 22 driving the unlocking member 23 to move, which is less likely to cause damage to the locking structure due to hard force.

[0051] Of course, after the door 10 is opened, the locking member 24 and the first locking part 11 are unlocked. The driving member 22 can drive the unlocking member 23 away from the locking member 24, and the locking member 24 can move closer to the locking position 212 and return to the locking position 212, so that when the door 10 is closed next time, the first locking part 11 can extend into the locking position 212 to lock.

[0052] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A door opening and closing structure, characterized in that, include, The door body is provided with a first locking part; A locking mechanism includes a mounting bracket, a driving component, a locking component, and an unlocking component. The mounting bracket is provided with a locking position into which the first locking part extends. The driving component, the locking component, and the locking component are all mounted on the mounting bracket. The driving component is used to drive the unlocking component to move closer to or away from the locking component, and the locking component can move closer to or away from the locking position.

2. The door opening and closing structure according to claim 1, characterized in that, The driving component includes a drive motor and a transmission component. The shaft of the drive motor is connected to the transmission component and is used to drive the transmission component to rotate. The unlocking component is connected to the transmission component. The transmission component is used to drive the unlocking component to move closer to or further away from the locking component in a straight line when rotating.

3. The door opening and closing structure according to claim 2, characterized in that, The transmission component includes a transmission rod, one end of which is connected to the shaft of the drive motor, and the other end of which is hinged to one end of the unlocking component. The bottom end of the unlocking component is connected to the mounting bracket and can slide along the straight line. The bottom end of the unlocking component is provided with a sliding part, and the mounting bracket is provided with a sliding groove. The sliding part is slidably installed in the sliding groove.

4. The door opening and closing structure according to claim 1, characterized in that, The unlocking member has a pressing block at its end, and the locking member has a pressure-receiving slope; the pressing block is used to press against the pressure-receiving slope when it approaches the locking member.

5. The door opening and closing structure according to any one of claims 1-4, characterized in that, One end of the locking member is rotatably connected to the mounting bracket, and the other end of the locking member is provided with a second locking part. The unlocking member is used to press against the locking member after moving close to the locking member, so as to drive the second locking part away from the locking position.

6. The door opening and closing structure according to claim 5, characterized in that, The locking mechanism further includes an elastic component, one end of which is connected to the mounting bracket, and the other end of which abuts against the locking member and provides elastic stress to drive the locking member toward the locking position.

7. The door opening and closing structure according to claim 5, characterized in that, The mounting bracket is provided with a guide groove, and the locking member is provided with a guide post. The guide groove extends along the rotation direction of the locking member, and the guide post is slidably connected to the guide groove.

8. The door opening and closing structure according to claim 5, characterized in that, There are two locking components, which are spaced apart.

9. The door opening and closing structure according to any one of claims 1-4, characterized in that, The locking mechanism further includes a detection switch, which is used to abut against the unlocking element and send a detection signal.

10. A cooking appliance, characterized in that, The invention includes a door opening and closing structure according to any one of claims 1-9 and a cooking body, wherein the mounting bracket is installed on the cooking body; the door is used to close or open the cooking opening of the cooking body.

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