Door opening structure and cooking equipment

Abstract

The utility model provides a door opening structure and cooking equipment, the door opening structure comprises a door hook arranged on a door body; the switch bracket is arranged in the box body and matched with the door hook in a clamping manner; the door opening assembly is arranged on the control panel box, the door opening assembly comprises a door opening key, and by pressing the door opening key, the constraint state on the door hook can be relieved, so that the door body is opened; the door opening assembly further comprises a first stop block, and the first stop block is assembled on the control panel box in a limited mode and can slide along the outer side wall of the door opening key so as to relieve constraint on the door opening key, so that the door opening key can be pressed and act. The cooking equipment can be opened only after two different simple operations of a user, so that a child is effectively prevented from opening the door by mistake, and the safety and reliability of the cooking equipment are improved; opening and closing of the door body are not affected by electrification or not, heated food can be taken out even in a temporary power-off state, and user experience is good.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and more specifically, to a door opening structure and cooking equipment. Background Technology

[0002] As people's pursuit of delicious food continues to improve, cooking equipment has become an important home appliance product for enhancing quality of life, showcasing personal taste, and pursuing a healthy lifestyle. Existing cooking equipment includes a cabinet and a door assembly that is hinged to the cabinet. On the other side of the door assembly, a door hook engages with a limiting part of the cabinet to restrict the opening or closing of the door assembly relative to the cabinet.

[0003] The door will make a loud noise and affect the user experience due to the combined force and inertia of the door hook when opening and closing; in addition, if the door is opened by children or others, there is a risk of being burned by the heated food inside the cabinet.

[0004] To address this, Chinese Patent Application No. 202321016091.9 discloses a door lock structure and a cooking device. The door lock structure includes: a door hook mounted on a door assembly; a switch bracket located inside the housing and engaging with the door hook; an opening assembly mounted on a control panel box, including an opening button and a rotating plate. The opening button drives the rotating plate to rotate upwards, disengaging the door hook from the switch bracket; and an electromagnetic switch mounted on the switch bracket, featuring a telescopic rod. When extended, the telescopic rod enters the rotation path of the rotating plate, preventing it from rotating upwards and correspondingly keeping the door hook engaged. However, this electromagnetic switch requires additional wiring and prevents the door assembly from opening when power is off, resulting in a poor user experience.

[0005] In view of the above, this utility model is hereby proposed. Utility Model Content

[0006] The problem solved by this invention is that the existing cooking equipment with secondary door opening function has a complex structure, and the door component cannot be opened in the power-off state by setting an electromagnetic switch, resulting in a poor user experience.

[0007] To solve the above problems, this utility model provides a door opening structure, including: a door hook disposed on the door body; a switch bracket disposed inside the housing and engaging with the door hook; and a door opening assembly disposed on the control panel box, the door opening assembly including a door opening button, which releases the constraint on the door hook by pressing the door opening button, thereby opening the door body; the door opening assembly also includes a first stop block, which is limited and assembled on the control panel box and can slide along the outer side wall of the door opening button to release the constraint on the door opening button so that it can be pressed and activated.

[0008] This application requires two simple, differentiated steps from the user to open, effectively preventing children from accidentally opening the door and improving the safety and reliability of the cooking equipment. The opening and closing of the door is unaffected by whether the power is on or off, allowing heated food to be retrieved even in a temporary power outage, providing a superior user experience. When the first stop block is in the first position, it restricts the activation of the door opening button, preventing accidental opening due to accidental touches or other unintended operations.

[0009] Preferably, the door opening assembly further includes a second reset member. The door opening button has an assembly hole on the side near the first stop block. The second reset member is located in the assembly hole. When the first stop block is in the second position, the second reset member deforms to generate a restoring force.

[0010] This setting enables the second reset component to continuously apply restoring force, ensuring that the first stop block automatically returns to the first position after completing the unlocking action. This prevents the first stop block from being stuck in the second position due to user misoperation or mechanical jamming, thereby maintaining the reliability of the door locking function. When subjected to vibration or external impact, the restoring force can offset the influence of interference factors on the position of the first stop block, preventing its accidental displacement from causing false triggering or locking failure.

[0011] Preferably, a locking pin is provided on the side of the first stop block, and the extension direction of the locking pin is perpendicular to the movement direction of the door opening button. A limiting groove is provided on the control panel box at the position corresponding to the locking pin. When the first stop block is in the first position, the locking pin is inserted into the limiting groove.

[0012] This design achieves rigid constraint through a mortise and tenon joint-like structure formed by the vertical insertion of the locking pin and the limiting groove, ensuring high reliability. At the same time, it can effectively limit the translation and rotation of the first stop block, preventing the first stop block from accidentally disengaging from the first position.

[0013] Preferably, the outer wall surface of the first stop block is provided with vertically arranged push plates. This arrangement allows for a larger contact area when the user applies force, avoiding finger pain or slippage during operation, resulting in a better user experience.

[0014] Preferably, the door opening assembly further includes a second stop block and a third reset member. The first stop block and the second stop block are symmetrically arranged on both sides of the door opening button. The third reset member is located between the first stop block and the door opening button and is used to move the second stop block, which is in the second position, back to the first position.

[0015] This design allows the user's thumb and forefinger to simultaneously apply force to the first and second stops, bringing them closer together to unlock; it conforms to human ergonomics and provides a better user experience; in addition, it can effectively prevent accidental touches that could cause the lock to fail.

[0016] Preferably, the switch bracket is disposed inside the housing and adjacent to the door opening assembly, and the switch bracket includes a hanging plate for engaging with the door hook and restricting the door hook from moving outward.

[0017] This design shortens the movement path between the door hook and the bracket, reducing unnecessary space occupation. Meanwhile, the mounting plate, as a key component of the bracket, directly engages with the door hook, eliminating the need for additional complex transmission structures. This makes the overall structure more compact and provides greater flexibility for the layout of other components inside the enclosure.

[0018] Preferably, the door opening assembly further includes a rotating plate, and the door opening button can drive the rotating plate to rotate upward to press against the door hook, thereby disengaging it from the switch bracket.

[0019] This setup creates an interactive structure consisting of "first stop block - door opening button - rotating plate - door hook - hanging plate," resulting in a more compact overall structure. It also improves the operational reliability of the door lock structure and optimizes the internal space layout of the cooking equipment.

[0020] Preferably, the door opening button has a push rod on the side near the rotating plate. There are two push rods, which are respectively located near the first stop block and the second stop block. A first reset member is sleeved on the push rod. The push rod part passes through the control panel box and contacts the rotating plate to push the rotating plate to rotate upward.

[0021] This design reduces intermediate transmission links, lowers energy loss and response delay, making door opening operations faster and more sensitive. Users can complete the door opening action without having to wait for a long time, improving the user experience. Users only need to press a button to push the lever to rotate the turntable to open the door, which is consistent with the common button operation logic and is easy for users to learn and operate quickly.

[0022] Preferably, the door opening structure further includes a micro switch mounted on the switch bracket. When the rotating plate rotates and the door hook disengages from the switch bracket, the micro switch is activated to provide real-time feedback on the door's locking / unlocking status. In this configuration, the micro switch exhibits high sensitivity; the moment the rotating plate rotates and the door hook disengages from the switch bracket, the micro switch is activated rapidly, allowing for immediate detection of changes in the door's locking / unlocking status.

[0023] This utility model also provides a cooking device, including the aforementioned door opening structure. The cooking device has the same beneficial effects as the door opening structure, and will not be described in detail here.

[0024] Compared with the prior art, the door opening structure and cooking device described in this utility model embodiment have the following beneficial effects: 1) This application can only be opened after two simple operations by the user, which effectively prevents children from accidentally opening the door and improves the safety and reliability of the cooking device; 2) The opening and closing of the door is not affected by whether the power is on or off, and the heated food can be taken out even in the event of a temporary power outage, resulting in a better user experience; 3) By setting a second reset component, it can be ensured that the first stop block can automatically return to the first position after completing the unlocking action, avoiding the first stop block from being stuck in the second position due to user misoperation or mechanical jamming, thereby maintaining the reliability of the door locking function. Attached Figure Description

[0025] Figure 1 A schematic diagram of the existing cooking equipment;

[0026] Figure 2 This is a schematic diagram of the overall cooking equipment described in an embodiment of the present utility model;

[0027] Figure 3 for Figure 2 A schematic diagram of a partial cross-section along the BB side of the middle section;

[0028] Figure 4 This is an exploded view of the door opening structure described in an embodiment of the present utility model;

[0029] Figure 5 This is a cross-sectional schematic diagram of the door opening structure after assembly according to an embodiment of the present utility model;

[0030] Figure 6 This is a schematic diagram of the structure of the first stop block in an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the door opening button according to an embodiment of the present utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100-Door body; 200-Box body; 300-Control panel box; 301-Receiving part; 302-Limiting groove; 1-Door hook; 2-Switch bracket; 21-Hanging plate; 3-Door opening assembly; 31-Door opening button; 311-Push rod; 312-First buckle; 313-Limiting hole; 314-Assembly hole; 32-Rotating plate; 321-Rotating shaft; 322-Top pressing block; 33-First stop block; 331-Push plate; 332-Locking pin; 333-Limiting buckle; 34-Second stop block; 35-First reset component; 36-Second reset component; 37-Third reset component; 4-Micro switch. Detailed Implementation

[0034] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Without conflict, the technical features of the embodiments of this utility model can be combined with each other.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] Existing cooking equipment typically uses a push-button door opening mechanism, such as... Figure 1 As shown, specifically, an opening button 31 is provided at the lower part of the control panel box 300. When the user presses the opening button 31, the push rod 311 of the opening button 31 will push the rotating plate 32 to rotate, thereby opening the door hook 1 fixedly mounted on the door body 100. The door assembly 1 can rotate relative to one side of the cooking cavity to open. However, the above-mentioned opening structure can easily open the door body 100 with only one opening action. If a child opens the door body 100 at will without adult supervision, there may be accidental burns or other uncontrollable safety hazards. Therefore, the applicant proposes the following technical solution:

[0038] like Figure 1-7 As shown, a door opening structure includes:

[0039] Door hook 1 is installed on door body 100;

[0040] The switch bracket 2 is installed inside the housing 200 and engages with the door hook 1.

[0041] The door opening component 3 is disposed on the control panel box 300. The door opening component 3 includes a door opening button 31. By pressing the door opening button 31, the constraint state on the door hook 1 can be released, thereby opening the door 100.

[0042] The door opening assembly 3 further includes a first stop block 33, which is fitted into the control panel box 300 and can slide along the outer side wall of the door opening button 31 to release the constraint on the operation of the door opening button 31.

[0043] This application requires two simple, different steps from the user to open, effectively preventing children from accidentally opening the door and improving the safety and reliability of the cooking equipment. The opening and closing of the door 100 is unaffected by whether the power is on or off, allowing heated food to be retrieved even in a temporary power outage, providing a superior user experience. Specifically, when the first stop block 33 is in the first position, it can restrict the operation of the door opening button 31, preventing accidental opening of the door due to accidental touch or other unintended operations.

[0044] Specifically, when a user opens the cooking device, they need to first apply force to the first stop block 33, causing it to slide in the left-right or up-down direction to release the constraint on the door opening button 31; then press the door opening button 31 to release the constraint on the door hook 1, and the door 100 is opened; that is to say, the user needs to perform two simple operations to open the door 100, thereby effectively preventing children from accidentally opening the door.

[0045] Preferably, in the cooking device, both the door 100 and the control panel box 300 are fixed to the outside of the housing 200. The housing 200 has a cavity 400 corresponding to the door 100 inside. The door 100 and the housing 200 are rotatably connected to open or close the cooking cavity. Taking a microwave oven as an example, when the door 100 is in the closed state, the cooking cavity is closed, and the microwave oven can microwave heat the food placed in the cooking cavity.

[0046] As an example of this utility model, the switch bracket 2 is disposed inside the housing 200 and adjacent to the door opening assembly 3. The switch bracket 2 includes a hanging plate 21, which is used to engage with the door hook 1 and restrict the door hook 1 from moving outward.

[0047] Preferably, the door opening assembly 3 further includes a rotating plate 32, and the door opening button 31 can drive the rotating plate 32 to rotate upward to press the door hook 1, thereby disengaging it from the switch bracket 2. Specifically, after the door opening button 31 is pressed, it is displaced, causing the rotating plate 32 to rotate upward to press the door hook 1. The pressed door hook 1 moves upward and is released from the restriction of the switch bracket 2, and the door 100 is opened.

[0048] This configuration creates an interactive structure consisting of "first stop block 33 - door opening button 31 - rotating plate 32 - door hook 1 - hanging plate 21", resulting in a more compact overall structure. This improves the operational reliability of the door lock structure and optimizes the internal space layout of the cooking equipment's housing 200. Preferably, the rotating plate 32 is rotatably connected to the control panel box 300 and, under normal conditions (i.e., when the door opening button 31 is not subjected to external force), is in a stationary position on its rotation path.

[0049] When the door 100 is closed, the door hook 1 will be tightly engaged with the hanging plate 21 until the door hook 1 is pushed upward by the rotating plate 32. Only then will the door hook 1 disengage from the hanging plate 21 and move outward to open the door 100. Corresponding to the stationary position, at the moment of unlocking, the rotating plate 32 will be in the unlocked position on its rotation path. Afterward, when the external force at the door opening button 31 disappears, the rotating plate 32 will automatically return to the stationary position along the rotation path.

[0050] As an example of this utility model, the door opening button 31 is provided with a push rod 311 on the side near the rotating plate 32. A first reset member 35 is sleeved on the push rod 311. The push rod 311 partially passes through the control panel box 300 and contacts the rotating plate 32 to push the rotating plate 32 to rotate upward.

[0051] This design reduces intermediate transmission links, lowers energy loss and response delay, making door opening faster and more sensitive. Users can open the door without long waiting times, improving the user experience. Users simply press a button, and the push rod 311 rotates the rotating plate 32 through contact with it, opening the door. This is consistent with common button operation logic, making it easy for users to quickly learn and operate. Specifically, the push rod 311 passes through the control panel box 300 and directly contacts the rotating plate 32. When the door opening button 31 is pressed, the push rod 311 immediately transmits the pressing force to the rotating plate 32, pushing it upwards to open the door.

[0052] As an example of this utility model, a first latch 312 is provided around the door opening button 31, and a protrusion is provided on the control panel box 300 at a position corresponding to the first latch 312, with the first latch 312 engaging with the protrusion. This arrangement does not interfere with the operation of the door opening button 31, and also prevents the door opening button 31 from falling out of the receiving part 301, ensuring a stable and reliable connection.

[0053] As an example of this utility model, the rotating plate 32 includes a rotating shaft 321, which is rotatably inserted into the back of the control panel box 300. One end of the rotating plate 32 is used to abut against the push rod 311, and the other end is provided with a top pressing block 322 for abutting against the door hook 1.

[0054] As an example of this utility model, the first stop block 33 is located on the side of the door opening button 31 away from the switch bracket 2. The first stop block 33 has a first position that restricts the door opening button 31 from operating and a second position that does not interfere with the operation of the door opening button 31.

[0055] Preferably, the door opening assembly 3 further includes a second reset member 36. The door opening button 31 has an assembly hole 314 on the side near the first stop block 33. The second reset member 36 is located in the assembly hole 314. When the first stop block 33 is in the second position, the second reset member 36 undergoes elastic deformation to generate a restoring force.

[0056] This setting enables the second reset member 36 to continuously apply restoring force, ensuring that the first stop block 33 can automatically return to the first position after completing the unlocking action, avoiding the first stop block 33 from being stuck in the second position due to user misoperation or mechanical jamming, thereby maintaining the reliability of the door 100 locking function; when subjected to vibration or external impact, the restoring force can offset the influence of interference factors on the position of the first stop block 33, preventing its accidental displacement from causing false triggering or locking failure.

[0057] As an example of this utility model, a locking pin 332 is provided on the side of the first stop block 33. The extension direction of the locking pin 332 is perpendicular to the movement direction of the door opening button 31. A limiting groove 302 is provided in the control panel box 300 at the position corresponding to the locking pin 332. When the first stop block 33 is in the first position, the locking pin 332 is inserted into the limiting groove 302.

[0058] This design achieves rigid constraint through a mortise and tenon joint-like structure formed by the vertical insertion of the locking pin 332 and the limiting groove 302, ensuring high reliability. Simultaneously, it effectively restricts the translation and rotation of the first stop block 33, preventing it from accidentally disengaging from its first position. It should be noted that the control panel box 300 is provided with a receiving portion 301 for assembling the door opening button 31; the limiting groove 302 is provided on the inner side wall of the receiving portion 301.

[0059] As an example of this utility model, a push plate 331 is provided on the outer wall surface of the first stop block 33 to facilitate the user's application of force. This design allows for a larger contact area when the user applies force, avoiding finger pain or slippage during operation, resulting in a better user experience.

[0060] Limit buckles 333 are provided on both sides of the first stop block 33. The door opening button 31 is provided with a limiting hole 313 at the corresponding position of the limit buckle 333. The limit buckle 333 is limited and assembled into the limiting hole 313 and can slide between the third position and the fourth position.

[0061] This setting enables the limiting buckles 333 on both sides to form a "double clamping" effect with the mating surfaces of the control panel box 300, restricting the translation of the first stop block 33 in the direction perpendicular to the sliding direction and its rotation around the Z-axis, ensuring that its movement trajectory between the first position and the second position is strictly controlled; at the same time, it effectively prevents the first stop block 33 from coming off the control panel box 300 during sliding, ensuring stable and reliable operation.

[0062] Preferably, the door opening assembly 3 further includes a second stop block 34 and a third reset member 37. The first stop block 33 and the second stop block 34 are symmetrically arranged on both sides of the door opening button 31. The third reset member 37 is located between the first stop block 33 and the door opening button 31 and is used to move the second stop block 34, which is in the second position, back to the first position.

[0063] This design allows the user's thumb and forefinger to simultaneously apply force to the first stop block 33 and the second stop block 34, bringing them closer together to unlock; it conforms to human ergonomics and provides a better user experience; in addition, it can effectively prevent accidental touches that could cause the lock to fail.

[0064] As an example of this utility model, the door opening structure also includes a micro switch 4 disposed on the switch bracket 2. When the rotating plate 32 rotates and the door hook 1 is released from the constraint of the switch bracket 2, it can press the micro switch 4 to provide real-time feedback on the locking status of the door 100. The assembly structure of the micro switch 4 is prior art and will not be described in detail here.

[0065] This utility model also provides a cooking device, including the aforementioned door opening structure. The cooking device has the same beneficial effects as the door opening structure, and will not be described in detail here.

[0066] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A door opening structure, comprising: A door hook (1) is disposed on the door body (100); a switch bracket (2) is disposed inside the housing (200) and engages with the door hook (1); an opening assembly (3) is disposed on the control panel box (300), the opening assembly (3) includes an opening button (31), pressing the opening button (31) can release the constraint on the door hook (1) and thus open the door body (100); the opening assembly (3) is characterized in that the opening assembly (3) further includes a first stop block (33), the first stop block (33) is limited and assembled on the control panel box (300) and can slide along the outer side wall of the opening button (31) to release the constraint on the opening button (31) so that it can be pressed and activated.

2. The door opening structure according to claim 1, characterized in that, The door opening assembly (3) further includes a second reset member (36). The door opening button (31) has an assembly hole (314) on the side near the first stop block (33). The second reset member (36) is located in the assembly hole (314). When the first stop block (33) is in the second position, the second reset member (36) deforms to generate a restoring force.

3. The door opening structure according to claim 1 or 2, characterized in that, A locking pin (332) is provided on the side of the first stop block (33). The extension direction of the locking pin (332) is perpendicular to the movement direction of the door opening button (31). A limiting groove (302) is provided on the control panel box (300) at the position corresponding to the locking pin (332). When the first stop block (33) is in the first position, the locking pin (332) is inserted into the limiting groove (302).

4. The door opening structure according to claim 3, characterized in that, The outer wall surface of the first stop block (33) is provided with push plates (331) arranged vertically.

5. The door opening structure according to claim 1, characterized in that, The door opening assembly (3) further includes a second stop block (34) and a third reset member (37). The first stop block (33) and the second stop block (34) are symmetrically arranged on both sides of the door opening button (31). The third reset member (37) is located between the first stop block (33) and the door opening button (31) and is used to move the second stop block (34) in the second position to the first position for reset.

6. The door opening structure according to claim 1, characterized in that, The switch bracket (2) is disposed inside the housing (200) and adjacent to the door opening assembly (3). The switch bracket (2) includes a hanging plate (21) for engaging with the door hook (1) and restricting the door hook (1) from moving outward.

7. The door opening structure according to claim 6, characterized in that, The door opening assembly (3) also includes a rotating plate (32), and the door opening button (31) can drive the rotating plate (32) to rotate upward to press the door hook (1), thereby disengaging it from the switch bracket (2).

8. The door opening structure according to claim 7, characterized in that, The door opening button (31) has a push rod (311) on one side near the rotating plate (32). There are two push rods (311) and they are respectively located near the first stop block (33) and the second stop block (34). A first reset member (35) is sleeved on the push rod (311). Part of the push rod (311) passes through the control panel box (300) and contacts the rotating plate (32) to push the rotating plate (32) to rotate upward.

9. The door opening structure according to claim 7, characterized in that, The door opening structure also includes a micro switch (4) disposed on the switch bracket (2). When the rotating plate (32) rotates and the door hook (1) is released from the constraint of the switch bracket (2), it can press the micro switch (4) to provide real-time feedback on the locking status of the door body (100).

10. A cooking device, characterized in that, Includes the door opening structure as described in any one of claims 1-9.

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