Door lock device and cooking electric appliance

Abstract

The utility model provides a kind of door lock device and cooking electric appliance, the device includes switch, button, reset spring and bracing piece;Switch, button, reset spring are all set in the mounting groove on the panel of cooking electric appliance in the way of being movable, and one end of bracing piece is set in the side of mounting groove towards the inside of electric appliance in the way of being movable;The other end of bracing piece is in abutment with door hook;Switch is connected with button and reset spring respectively, and button is connected with reset spring, bracing piece and mounting groove respectively;By the door lock device and cooking electric appliance of the utility model, the structure of device can be effectively simplified, the cost of device is reduced, the dismounting efficiency of device is improved, the automatic reset of device is realized, the safety of device is improved, the use experience of user is guaranteed, and the use satisfaction of user is improved.

Description

Technical Field

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

[0002] Traditional appliances, such as microwave ovens and ovens, typically use pull-type or button-type doors. Opening the door requires only one step: pulling the handle or pressing the button. However, these appliances pose a safety hazard, as children may accidentally open them, potentially injuring themselves with hot gases or food inside.

[0003] Currently, over 95% of two-door microwave ovens on the market use electrically controlled electromagnets. Due to the size limitations of microwave ovens and the power requirements of the control board, the electromagnets must be extremely small and have very low power. The manufacturing process for electromagnets is complex and demanding, prone to malfunctions. Current surges during operation can damage the control board, rendering the product unusable. Two-door microwave ovens have changed the traditional user experience, and many customers require improved user experience. Therefore, researching how to simplify the two-door structure and reduce its cost while ensuring a positive user experience is of great significance.

[0004] Patent CN211714824U discloses a microwave oven door safety lock, including a control panel, a button block on the control panel, and a door opening and closing mechanism linked to the button block. The button block has a knob with gears and a latch with a rack that matches the gears on the knob. The control panel has a latch slot that matches the latch. First, rotating the knob engages the gears on the knob and the rack on the latch, causing the latch to move longitudinally to unlock. Then, pressing the button block activates the door opening and closing mechanism, preventing the microwave oven door from automatically opening when a child touches the button block. However, this structure requires a knob on the door opening and closing button block and a latch that engages with the gears on the knob, making the manufacturing process of the safety lock complex and increasing its cost. Utility Model Content

[0005] In view of this, the present invention aims to propose a door lock device and a cooking appliance to solve the safety hazards of one-step button door locks that pose a risk to children, and the complex manufacturing process and ineffective operation during power outages of traditional two-step button door locks that use electronic control. Even with a knob structure, the manufacturing process remains complex and the cost is high. The present invention aims to effectively simplify the device's structure, reduce its cost, improve its assembly and disassembly efficiency, enable automatic reset, enhance its safety, ensure a better user experience, and increase user satisfaction.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] This utility model relates to a door lock device and a cooking appliance. The door lock device includes a switch, a button, a return spring, and a support rod. The switch, button, and return spring are all movably mounted in a mounting groove on the panel of the cooking appliance. One end of the support rod is movably mounted on the side of the mounting groove facing the inside of the appliance. The other end of the support rod abuts against a door hook. The switch is connected to the button and the return spring, and the button is connected to the return spring, the support rod, and the mounting groove.

[0008] Furthermore, the reset spring includes a first reset spring and a second reset spring; the first reset spring is disposed between the switch and the button; the second reset spring is disposed between the button and the mounting slot.

[0009] Furthermore, at least one reset spring should be provided.

[0010] Furthermore, the switch includes a toggle element, a sliding plate, and a locking pin; the toggle element is connected to the locking pin via the sliding plate, the rear side of the sliding plate is in contact with the front side of the button, and the end of the locking pin away from the locking pin passes through the button and abuts against the bottom of the mounting groove, or the end of the locking pin away from the locking pin passes through the button and the mounting groove in sequence.

[0011] Furthermore, the switch also includes a limiting block; the limiting block is located on the side of the sliding plate facing the button, the limiting block is parallel to the locking pin, and there is a certain gap between the limiting block and the locking pin; the limiting block is located on the front side of the button in a manner that allows it to slide left and right.

[0012] Furthermore, the button includes a body, a torsion post, and a limiting arm; the front side of the body is connected to the rear side of the switch, one end of the torsion post is located on the rear side of the body, the other end of the torsion post abuts against the support rod in a way that allows it to move back and forth, and the outer wall of the other end of the torsion post fits into the mounting groove; the limiting arm is located at both ends of the rear side of the body.

[0013] Furthermore, the main body includes a first plate and a second plate. One end of the first plate is respectively disposed at the left and right ends of the second plate, and the other end of the first plate is bent and connected to the corresponding limiting support arm; the rear side of the second plate abuts against the end of the return spring away from the mounting groove.

[0014] Furthermore, the second plate includes a first groove, a second groove, and a lock hole; both the first groove and the second groove are located on the front side of the second plate; the first groove is located on the right side of the second groove, and the lock hole is located at the bottom of the second groove.

[0015] Furthermore, the limiting block is positioned in the first groove in a manner that allows it to move left and right; the end of the locking pin away from the sliding plate passes through the locking hole and is positioned in the mounting groove.

[0016] A cooking appliance, the appliance including the aforementioned door lock device, the device being disposed on the appliance.

[0017] Compared with the prior art, the door lock device and cooking appliance described in this utility model have the following advantages:

[0018] By setting up the aforementioned device, the device structure can be effectively simplified, the device cost can be reduced, the device assembly and disassembly efficiency can be improved, the device can be automatically reset, the device safety can be enhanced, the user experience can be guaranteed, and the user satisfaction can be increased. Attached Figure Description

[0019] The accompanying drawings, which constitute a part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments and descriptions of the utility model are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0020] Figure 1 A first-person view structural diagram of the door lock device in the locked state;

[0021] Figure 2 A first-person view structural diagram of the door lock device in the open state;

[0022] Figure 3 A first-view structural diagram of the door lock device when the button is pressed after it is opened;

[0023] Figure 4 A second-view structural diagram of the door lock device in the locked state;

[0024] Figure 5 A second-view structural diagram of the door lock device in the open state;

[0025] Figure 6 A second-view structural diagram of the door lock device when the button is pressed after it is opened;

[0026] Figure 7a A third-person view structural diagram of the door lock device in the locked state;

[0027] Figure 7b A third-person view diagram of the door lock device in the open state or after it has been opened, when the button is pressed.

[0028] Figure 8a A fourth-view structural diagram of the door lock device in the locked state;

[0029] Figure 8b A fourth-view structural diagram of the door lock device in the open state;

[0030] Figure 8c A fourth-view structural diagram of the door lock device when the button is pressed after it is opened;

[0031] Figure 9a A first-person view structural diagram of the electrical appliance when the door lock device is locked.

[0032] Figure 9b A schematic diagram of the electrical structure when the door lock device is open;

[0033] Figure 10a A schematic diagram of the electrical appliance from a second-view perspective when the door lock device is locked.

[0034] Figure 10b This is a second-view structural diagram of the electrical appliance when the button is pressed while the door lock device is in the open state.

[0035] Explanation of reference numerals in the attached drawings: 1. Switch; 11. Toggle element; 12. Sliding plate; 121. Main board; 122. Support leg; 13. Locking post; 14. Limiting block; 2. Button; 21. Main body; 211. First plate; 212. Second plate; 2121. First groove; 2122. Second groove; 2123. Lock hole; 22. Torsion post; 23. Limiting arm; 231. First arm; 232. Second arm; 3. Return spring; 31. First return spring; 32. Second return spring; 4. Support rod; 5. Bracket; 10. Door hook; 6. Panel; 61. Mounting groove; 611. First through hole; 612. Second through hole; 613. Third through hole; 614. Limiting step. Detailed Implementation

[0036] The inventive concepts of this disclosure will be described below using terminology commonly used by those skilled in the art to convey the essence of their work to others skilled in the art. However, these inventive concepts may be embodied in many different forms and should not be construed as limited to the embodiments described herein.

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0038] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] This embodiment is for household appliances. Similar to conventional household appliances, the overall structure consists of a door hook and a panel.

[0041] To address the safety hazards posed by one-step push-button door locks to children, and the complex manufacturing process and ineffective operation during power outages of traditional two-step push-button door locks using electronic control, this embodiment proposes a door lock device and a cooking appliance. The door lock device includes a switch 1, a button 2, a return spring 3, and a support rod 4. The switch 1, button 2, and return spring 3 are all movably mounted in mounting slots 61 on the control panel 6 of the cooking appliance. One end of the support rod 4 is movably mounted on the side of the mounting slot 61 facing inwards from the appliance; the other end of the support rod 4 abuts against a door hook 10. The switch 1 is connected to the button 2 and the return spring 3, and the button 2 is connected to the return spring 3, the support rod 4, and the mounting slot 61.

[0042] By setting up the aforementioned device, the device structure can be effectively simplified, the device cost can be reduced, the device assembly and disassembly efficiency can be improved, the device can be automatically reset, the device safety can be enhanced, the user experience can be guaranteed, and the user satisfaction can be increased.

[0043] The reset spring 3 includes a first reset spring 31 and a second reset spring 32. The first reset spring 31 is located between the switch 1 and the button 2, enabling the switch 1 to automatically slide back to its original position along the front side of the button 2 when the door is closed. The second reset spring 32 is located between the button 2 and the mounting groove 61, enabling the button 2 to move backward and forward under the action of external force from the user. At least one second reset spring 32 is provided.

[0044] By incorporating two types of return springs 3, the stability and automation of the door lock device structure can be improved. Through a mechanical design, the door lock device can automatically lock when the door is closed, effectively protecting user safety and stability, while also enhancing user convenience and overall user experience, thus improving user satisfaction.

[0045] The switch 1 includes an actuating element 11, a sliding plate 12, and a locking pin 13. The actuating element 11, sliding plate 12, and locking pin 13 are integrally formed. The actuating element 11 is connected to the locking pin 13 via the sliding plate 12. The rear side of the sliding plate 12 is in contact with the front side of the button 2. One end of the locking pin 13, away from the locking pin 13, passes through the button 2 and abuts against the bottom of the mounting groove 61, or the other end of the locking pin 13, away from the locking pin 13, passes through the button 2 and the mounting groove 61 sequentially. The two ends of a reset spring 31 are respectively in contact with the outer wall of the locking pin 13 and the button 2. The actuating element 11 is either protruding or recessed to increase the coefficient of friction between the user's hand and the position where the actuating element 11 is located, thereby operating the switch 1 to move the sliding plate 12.

[0046] By setting up the toggle 11, the sliding plate 12 and the locking pin 13, the switch 1 can slide left and right along the button 2, and the switch 1 can also abut against the mounting groove 61 to automatically lock after the door is closed, thus preventing the door from opening during the operation of the appliance due to accidental touch of the button 2.

[0047] The switch 1 also includes a limiting block 14. The limiting block 14 is disposed on the side of the sliding plate 12 facing the button 2, and is parallel to the locking pin 13, with a certain gap between them. The limiting block 14 is disposed on the front side of the button 2 in a manner that allows it to slide left and right. The sliding plate 12 includes a main plate 121 and supporting feet 122. The supporting feet 122 are disposed at both ends of the main plate 121 facing the button 2. The side of the supporting feet 122 away from the main plate 121 abuts against the button 2 in a manner that allows it to slide left and right. There is a certain gap between the main plate 121 and the button 2. The toggle member 11 is disposed on the front side of the main plate 121, and the locking pin 13 and the limiting block 14 are both disposed on the rear bottom end of the main plate 121. The thickness of the supporting feet 122 is less than the thickness of the limiting block 14. In this embodiment, thickness refers to the dimension in the front-to-back direction.

[0048] The limiting block 14 greatly enhances the safety of the door lock device, ensures the stability of the movement between switch 1 and button 2, and prevents the switch 1 from slipping out during left and right sliding. This significantly improves the safety of the door lock device.

[0049] Button 2 includes a main body 21, a torsion post 22, and a limiting arm 23. The main body 21, torsion post 22, and limiting arm 23 are integrally formed. The front side of the main body 21 is connected to the rear side of switch 1. One end of the torsion post 22 is located on the rear side of the main body 21, and the other end of the torsion post 22 abuts against the support rod 4 in a way that allows it to move back and forth. The outer wall of the other end of the torsion post 22 fits into the mounting groove 61. The limiting arm 23 is located at both ends of the rear side of the main body 21; a reset spring 32 is provided on the outer side of the torsion post 22. At least one torsion post 22 is provided; preferably, two torsion posts 22 and two reset springs 32 are provided. The two torsion posts 22 are arranged parallel to each other on the rear side of the main body 21. A locking post 13 is located between the two torsion posts 22. The inner sides of the two reset springs 32 are respectively located on the outer sides of their corresponding torsion posts 22.

[0050] The coordinated arrangement of the main body 21, torsion column 22, and limiting arm 23 enables the limiting and support of switch 1, while also ensuring a fixed connection between the door lock device, panel 6, and support rod 4. This improves the structural stability and operational reliability of the device.

[0051] The main body 21 includes a first plate 211 and a second plate 212. One end of the first plate 211 is respectively located at the left and right ends of the second plate 212, and the other end of the first plate 211 is bent and connected to the corresponding limiting support arm 23. The rear side of the second plate 212 abuts against the end of the reset spring 32 in the reset spring 3 away from the mounting groove 61. When one of the two legs 122 of the sliding plate 12 in the switch 1 abuts or separates from the front side of the first plate 211 located on the right side of the second plate 212, it also separates or abuts against the right front end of the second plate 212. Simultaneously, when the other leg 122 of the sliding plate 12 in the switch 1 separates or abuts against the front side of the first plate 211 located on the left side of the second plate 212, it also abuts or separates against the left front end of the second plate 212. The thickness of the first plate 211 is less than the thickness of the second plate 212.

[0052] The coordinated arrangement of the first plate 211 and the second plate 212 provides installation space for the two return springs 3. Furthermore, by positioning the two return springs 3 at different locations, they can be used to reset the button 2 and switch 1 in different directions. This facilitates the automatic reset function of the door lock device in the locked state, providing continuous protection for household appliances. Moreover, the mechanical automatic reset device helps reduce the cost of the device.

[0053] The second plate 212 includes a first groove 2121, a second groove 2122, and a locking hole 2123. Both the first groove 2121 and the second groove 2122 are located on the front side of the second plate 212. The first groove 2121 is located on the right side of the second groove 2122, and the locking hole 2123 is located at the bottom of the second groove 2122. The first groove 2121 accommodates the limiting block 14 and limits its sliding distance. The second groove 2122 provides space for the reset spring 31, and the locking hole 2123 allows the locking pin 13 of the switch 1 to pass through. The limiting block 14 is positioned in the first groove 2121 in a manner that allows it to move left and right. The end of the locking pin 13 away from the sliding plate 12 passes through the locking hole 2123 and is positioned within the mounting groove 61. A cavity is formed between the inner wall of the second groove 2122, the sliding plate 12, and the locking pin 13. The reset spring 31 is positioned within this cavity.

[0054] The arrangement of the first groove 2121, the second groove 2122, and the lock hole 2123 helps to improve the tightness of the connection between the button 2 and the switch 1, and also helps to ensure the safety and reliability of the switch 1 during left and right movement.

[0055] The limiting arm 23 includes a first arm 231 and a second arm 232. The first arm 231 is connected to the side of the first plate 211 within the main body 21 away from the second plate 212 via the second arm 232. The first arm 231 and the second arm 232 are bent, and the front side of the first arm 231 abuts against or separates from the mounting groove 61. The first arm 231 is wedge-shaped. The width of the end of the second arm 232 near the main body 21 gradually decreases from front to back. In this embodiment, the width refers to the dimension along the left-right direction.

[0056] The coordinated arrangement of the first support arm 231 and the second support arm 232 helps ensure the stability of the connection between the button 2 and the mounting groove 61, and also improves the efficiency of disassembly and assembly between the button 2 and the mounting groove 61. It also helps to enhance the structural strength of the button 2 and extend its service life.

[0057] A cooking appliance includes the aforementioned door lock device, which is disposed on the cooking appliance. The mounting groove 61 includes a first through hole 611, a second through hole 612, and a third through hole 613. The first through hole 611, the second through hole 612, and the third through hole 613 are all located at the bottom of the mounting groove 61. The first through hole 611, the second through hole 612, and the third through hole 613 all have a certain gap. In the unlocked state, the limiting arm 23, the torsion pin 22, and the locking pin 13 are respectively disposed within the first through hole 611, the second through hole 612, and the third through hole 613 in a manner that allows them to move back and forth. In the locked state, the limiting arm 23 and the torsion pin 22 are respectively disposed within the first through hole 611 and the second through hole 612. The end of the locking pin 13 away from the sliding plate 12 abuts against the bottom of the mounting groove 61, thus locking the appliance's door. The mounting groove 61 has a limiting step 614 between its left and right side walls and the first through hole 611. The end of the limiting arm 23 away from the main body 21 is engaged with or separated from the limiting step 614. In addition, the appliance also includes a bracket 5, which is installed inside the appliance. The door hook 10 is connected to or separated from the bracket 5.

[0058] The through holes within the mounting slot 61 facilitate easy installation of the door lock device and improve its stability, thereby greatly enhancing the convenience of opening and closing the appliance. Furthermore, the ergonomically designed mounting slot 61, positioned at the bottom of the appliance, significantly improves user satisfaction and enhances the user experience. In addition, the modular design of the components within the door lock device improves installation and maintenance efficiency. Moreover, the door lock device allows for two-step opening, thus greatly protecting children's safety.

[0059] Working principle:

[0060] A door lock device is installed at button 2 on the electrical door opening panel 6. When opening the door, pushing switch 1 on the door lock device unlocks the door. Releasing the switch triggers a spring 31, which pushes the door lock device back to its locked state. Specifically...

[0061] In locked state:

[0062] like Figure 4 When the electrical door is closed, the door lock is locked, and button 2 cannot move to push the support rod 4 to open the electrical door;

[0063] Unlocked status:

[0064] like Figure 6Push the switch 1 of the door lock device. At this time, the limit between the door lock device switch 1 and the mounting groove 61 of the panel 6 is in the open state. Press the button 2 with force. At this time, the button 2 moves and pushes the support rod 4. The support rod 4 pushes the door hook 10 in the door module to move and open the furnace door.

[0065] In this utility model, any household appliance may include the door lock device structure described in this embodiment. In addition to the relevant structure and assembly relationship of the support rod 4 and bracket 5 provided in this embodiment, the household appliance also includes conventional components such as door hook 10 and panel 6. Since these are all prior art, they will not be described in detail here.

[0066] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A door lock device, characterized in that, It includes a switch (1), a button (2), a return spring (3), and a support rod (4); the switch (1), the button (2), and the return spring (3) are all movably installed in the mounting groove (61) on the panel (6) of the cooking appliance, and one end of the support rod (4) is movably installed on the side of the mounting groove (61) facing the inside of the appliance; the other end of the support rod (4) abuts against the door hook (10); the switch (1) is connected to the button (2) and the return spring (3) respectively, and the button (2) is connected to the return spring (3), the support rod (4), and the mounting groove (61) respectively.

2. A door lock device according to claim 1, characterized in that, The reset spring (3) includes a reset spring (31) and a reset spring (32); the reset spring (31) is disposed between the switch (1) and the button (2); the reset spring (32) is disposed between the button (2) and the mounting groove (61).

3. A door lock device according to claim 2, characterized in that, At least one of the reset springs (32) is provided.

4. A door lock device according to claim 1, characterized in that, The switch (1) includes a toggle (11), a sliding plate (12), and a locking pin (13); the toggle (11) is connected to the locking pin (13) through the sliding plate (12), the rear side of the sliding plate (12) is in contact with the front side of the button (2), and the end of the locking pin (13) away from the locking pin (13) passes through the button (2) and abuts against the bottom of the mounting groove (61), or the end of the locking pin (13) away from the locking pin (13) passes through the button (2) and the mounting groove (61) in sequence.

5. A door lock device according to claim 4, characterized in that, The switch (1) also includes a limiting block (14); the limiting block (14) is disposed on the side of the sliding plate (12) facing the button (2), the limiting block (14) is disposed parallel to the locking pin (13), and there is a certain gap between the limiting block (14) and the locking pin (13); the limiting block (14) is disposed on the front side of the button (2) in a manner that allows it to slide left and right.

6. A door lock device according to claim 5, characterized in that, The button (2) includes a main body (21), a torsion post (22), and a limiting arm (23); the front side of the main body (21) is connected to the rear side of the switch (1), one end of the torsion post (22) is located on the rear side of the main body (21), the other end of the torsion post (22) abuts against the support rod (4) in a way that allows it to move back and forth, and the outer side wall of the other end of the torsion post (22) fits against the mounting groove (61); the limiting arm (23) is located at both ends of the rear side of the main body (21).

7. A door lock device according to claim 6, characterized in that, The main body (21) includes a first plate (211) and a second plate (212); one end of the first plate (211) is respectively disposed at the left and right ends of the second plate (212), and the other end of the first plate (211) is bent and connected to the corresponding limiting arm (23); the rear side of the second plate (212) abuts against the end of the reset spring (3) away from the mounting groove (61).

8. A door lock device according to claim 7, characterized in that, The second plate (212) includes a first groove (2121), a second groove (2122), and a lock hole (2123); the first groove (2121) and the second groove (2122) are both located on the front side of the second plate (212); the first groove (2121) is located on the right side of the second groove (2122), and the lock hole (2123) is located at the bottom of the second groove (2122).

9. A door lock device according to claim 8, characterized in that, The limiting block (14) is set in the first groove (2121) in a manner that allows it to move left and right; the end of the locking pin (13) away from the sliding plate (12) passes through the locking hole (2123) and is set in the mounting groove (61).

10. A cooking appliance, characterized in that, The electrical appliance includes a door lock device according to any one of claims 1-9, the device being disposed on the electrical appliance.

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