Oven door opening and closing device and microwave oven

Abstract

The utility model provides an oven door opening and closing device and a microwave oven, the device comprises a key, a lock rod and a spring, one end of the key is arranged on the outer side of an oven door of the microwave oven in a sliding and penetrating mode, and the other end of the key abuts against or is separated from the bottom end of the lock rod; the spring is arranged on the outer side of the locking rod; the top end of the locking rod abuts against or is separated from a panel on the top of the microwave oven; according to the oven door opening and closing device and the microwave oven, the structure of the oven door opening and closing device can be simplified, the cost of the device is reduced, the device can be mechanically unlocked, the influence of power failure on the oven door opening and closing is avoided, and the use convenience of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of microwave ovens, in particular to a kind of oven door opening and closing device and microwave oven. BACKGROUND

[0002] For the operation panel in microwave oven whole machine top, side door microwave oven model, existing technology is through top electromagnetic valve downward lock door, electromagnetic valve lock door hook mode realizes two-step door opening scheme.Currently, using this scheme, on the one hand, it is easy to make the cost of microwave oven higher, on the other hand, when electrical component power failure cannot be automatically reset, while operating oven door switch, it needs to design separate button, realizes oven door switch by electric control program control, and this setting mode can also cause the problem of poor reliability of oven door switch.Therefore, it is of great significance to study how to improve the convenience of oven door switch while reducing the cost of oven door switch.

[0003] In patent CN219196985U, a kind of microwave oven door safety lock device is mentioned, including: the button lock of being arranged in the front of control panel, the button lock includes button panel, a pair of clamping jaw being arranged in the back of button panel, button lock control component includes limiting post, handle and handle reset spring being sleeved on limiting post, wherein the limiting post one end is provided with handle mounting head, the other end is provided with the clamping head matched with the side limiting hole of clamping jaw, the button lock control component is configured to be able to convert between the initial position of preventing button lock work and the second position of not hindering button lock work, but since the button lock control component still needs to cooperate with button lock, to realize the opening and closing of microwave oven door, in the case of power failure, button lock electric control device cannot be used, so that the problem of reducing the reliability of oven door switch occurs. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model aims at presenting a kind of oven door switch device and microwave oven to solve the problems that the existing oven door switch mode in prior art adopts electromagnetic valve and electric control program cooperation setting, is easy to cause the cost of oven door switch higher, and in the case of power failure, since electrical component cannot be automatically reset, need to set up separate button to switch, and then make the safety of oven door switch worse;To this end, the structure of oven door switch device is simplified, the cost of device is reduced, the mechanical unlocking of device is guaranteed, the influence of power failure on oven door switch is avoided, and the use convenience of device is improved.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] The utility model relates to a kind of stove door opening and closing device and microwave oven, a kind of stove door opening and closing device, including button, lock and spring, button one end with the way of being able to slide is set in the outside of the door of microwave oven, the other end of button and lock bottom end abut or separate;Spring is set in the outside of lock, the top end of lock and the panel of the top of microwave oven abut or separate.

[0007] Further, the button includes a pressing portion, a limiting portion, and a transmission rod. The pressing portion is connected to the transmission rod through the limiting portion. The pressing portion and the limiting portion are movably arranged outside the door of the microwave oven. An end of the transmission rod away from the limiting portion is arranged to penetrate the door of the microwave oven in a slidable manner. The end of the transmission rod away from the limiting portion abuts or separates from the bottom of the lock.

[0008] Further, the end of the transmission rod close to the limiting portion is a column, and the end of the transmission rod away from the limiting portion is provided with a matching surface and a connecting curved surface. The outer edge of the matching surface is connected to the outer edge of the connecting curved surface.

[0009] Further, the angle between the matching surface and the straight line where the outer side wall of the transmission rod is located is α, and 90° < α < 180°.

[0010] Further, the lock includes a first lock, a second lock, a third lock, and a fourth lock. One end of the first lock is connected to one end of the second lock, the third lock, and the fourth lock in sequence. The other end of the first lock movably abuts or separates from the panel of the top of the microwave oven. The other end of the fourth lock abuts the transmission rod.

[0011] Further, the end of the first lock close to the panel is conical, and the end of the first lock close to the second lock, the second lock, and the third lock are columnar.

[0012] Further, the fourth lock includes a first side plate, a second side plate, a third side plate, a fourth side plate, and a wedge-shaped block. The first side plate, the second side plate, the third side plate, and the fourth side plate are connected in a closed frame. The top of the first side plate is connected to the bottom of the third lock.

[0013] Further, the fourth lock further includes a wedge-shaped block, which is arranged on the top of the third side plate. The wedge-shaped block is connected to the second side plate and the fourth side plate.

[0014] Further, the wedge-shaped block includes an inclined surface. The matching surface of the transmission rod is slidably attached to the inclined surface of the wedge-shaped block.

[0015] A microwave oven includes the stove door opening and closing device. The opening and closing device is arranged on the top of the door.

[0016] Compared with the prior art, the stove door opening and closing device and the microwave oven have the following beneficial effects:

[0017] Through the setting of the switch device, the structure of the oven door switch device can be simplified, the cost of the device is reduced, the device can be mechanically unlocked, the influence of power failure on the oven door switch is avoided, and the use convenience of the device is improved. In addition, the cooperation of the device with the microwave oven can improve the appearance of the microwave oven, and enhance the convenience and safety of the microwave oven. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which form a part of the present application, are incorporated herein to provide further understanding of the application and are incorporated herein to provide further understanding of the application and are incorporated herein for illustrative purposes and are not intended to limit the application. In the drawings:

[0019] Figure 1 It is a schematic diagram of the external structure of the microwave oven;

[0020] Figure 2 It is a schematic diagram of the overall structure of the microwave oven and the switch device;

[0021] Figure 3 It is an exploded view schematic diagram of the oven door, the control panel and the switch device of the microwave oven;

[0022] Figure 4 It is a schematic diagram of the overall structure of the microwave oven and the switch device;

[0023] Figure 5 It is a schematic diagram of the overall structure of the key;

[0024] Figure 6 It is a schematic diagram of the overall structure of the lock rod.

[0025] Reference signs: 1, key; 11, pressing part; 12, limiting part; 13, transmission rod; 131, matching surface; 132, connecting curved surface; 2, lock rod; 21, first side plate; 22, second side plate; 23, third side plate; 24, fourth side plate; 245, wedge-shaped block; 3, spring. DETAILED DESCRIPTION

[0026] The utility model concepts of the present disclosure will hereinafter be described using terms generally used by those skilled in the art to convey the substance of their work to other skilled artisans in the art. However, these utility model concepts can be embodied in many different forms, and therefore should not be considered limited to the embodiments described herein.

[0027] In the description of the utility model, it is understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0028] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0029] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0030] The embodiment is aimed at the microwave oven, and the same as the conventional microwave oven is that the overall structure is composed of a door, a shell and a wire.

[0031] In the prior art, the top electromagnetic valve locks the door downward, and the electromagnetic valve locks the door hook; and the door can be opened only after the electromagnetic valve is unlocked; the mechanical door hook in the prior art can pull the door only after being pressed by the mechanical structure.

[0032] In order to solve the problems in the prior art that the existing door opening and closing mode adopts electromagnetic valve and electric control program cooperation setting, which is easy to cause high cost of the door opening and closing, and in the case of power failure, the electrical components cannot be automatically reset, a separate button needs to be set for opening and closing, thereby making the safety of the door opening and closing poor, the embodiment provides a door opening and closing device and a microwave oven, the door opening and closing device comprises a button 1, a lock rod 2 and a spring 3, one end of the button 1 is slidably arranged outside the door of the microwave oven, the other end of the button 1 abuts or separates from the bottom end of the lock rod 2. The spring 3 is arranged outside the lock rod 2, and the top end of the lock rod 2 abuts or separates from the panel at the top of the microwave oven.

[0033] Through the setting of the switch device, on the one hand, the structure of the door opening and closing device can be simplified, on the other hand, two-step door opening and one-step door closing can be realized by mechanical means. In addition, the cost of the device can be reduced, the device can be mechanically unlocked, the influence of power failure on the door opening and closing can be avoided, and the use convenience of the device can be improved.

[0034] The key 1 comprises a pressing part 11, a limiting part 12 and a transmission rod 13. The pressing part 11 is connected with the transmission rod 13 through the limiting part 12. The pressing part 11 and the limiting part 12 are movably arranged outside the door of the microwave oven, and the end of the transmission rod 13 away from the limiting part 12 is slidably arranged through the door of the microwave oven. The end of the transmission rod 13 away from the limiting part 12 abuts against or separates from the bottom of the lock rod 2. The pressing part 11, the limiting part 12 and the transmission rod 13 are integrally formed. The pressing part 11 and the limiting part 12 are both cylindrical. The end of the transmission rod 13 close to the limiting part 12 is cylindrical, and the end of the transmission rod 13 away from the limiting part 12 is provided with a matching surface 131 and a connecting curved surface 132. The outer edge of the matching surface 131 is connected with the outer edge of the connecting curved surface 132, and the matching surface 131 is used for matching with the bottom of the lock rod 2 to generate a downward traction force on the lock rod 2 when the key 1 is pressed, so as to drive the lock rod 2 to move downward and realize unlocking. In addition, the angle between the matching surface 131 and the straight line where the outer side wall of the transmission rod 13 is located is α, and 90°<α<180°. The maximum cross-sectional dimension of the pressing part 11 is L1 mm, the maximum cross-sectional dimension of the limiting part 12 is L2 mm, and the maximum cross-sectional dimension of the transmission rod 13 is L3 mm, and L3<L1≤L2. L1, L2 and L3 are positive numbers, and the values of L1, L2 and L3 are set according to the requirements. In this embodiment, the straight line where the outer side wall of the transmission rod 13 is located is parallel to the straight line where the axial direction of the transmission rod 13 is located.

[0035] Through the matching arrangement of the components in the key 1, the structure of the key 1 can be simplified, and the matching surface 131 and the bottom of the lock rod 2 can be matched to improve the tightness of the connection between the key 1 and the lock rod 2, thereby improving the structural stability and reliability of the switch device.

[0036] The lock rod 2 comprises a first lock rod 21, a second lock rod 22, a third lock rod 23 and a fourth lock rod 24. The first lock rod 21, the second lock rod 22, the third lock rod 23 and the fourth lock rod 24 are integrally formed. One end of the first lock rod 21 is connected with the other end of the second lock rod 22, the third lock rod 23 and the fourth lock rod 24 in sequence. The other end of the first lock rod 21 abuts against or separates from the panel at the top of the microwave oven in a movable manner, and the inner side of the other end of the fourth lock rod 24 abuts against the transmission rod 13.

[0037] The one end of the lock pole 2 close to the panel is conical, the one end of the lock pole 2 close to the lock pole 2, the lock pole 2 and the lock pole 3 are columnar. The lock pole 4 comprises a first side plate 241, a second side plate 242, a third side plate 243 and a fourth side plate 244. The first side plate 241, the second side plate 242, the third side plate 243 and the fourth side plate 244 are connected in series to form a closed frame. The top of the first side plate 241 is connected with the bottom of the lock pole 3. The lock pole 4 further comprises a wedge block 245, which is arranged on the top of the third side plate 243. The wedge block 245 is connected with the second side plate 242 and the fourth side plate 244 respectively.

[0038] Specifically, the wedge block 245 comprises an inclined surface. The angle between the inclined surface and the third side plate 243 is α. The inclined surface of the wedge block 245 is arranged in a matching manner with the matching surface 131 of the transmission rod 13, and the inclined surface of the wedge block 245 abuts against the matching surface 131 of the transmission rod 13. The matching surface 131 of the transmission rod 13 is in a sliding manner with the inclined surface of the wedge block 245.

[0039] Through the cooperation of the components in the lock pole 2, the functionality of the lock pole 2 can be improved, and the lock pole 2 can be stably moved downward under the driving of the button 1, and the lock pole 2 can be automatically reset under the action of the door and the spring 3 during the closing process. Different from the setting of the existing electrically controlled door opening and closing device, the mechanical structure of the opening and closing device in the application has the characteristics of simple and reliable structure and convenient operation. In addition, through the setting of the opening and closing device in the application, mechanical unlocking can be realized, one-step automatic door closing can be realized, and the structure of the lock pole 2 can be simplified and the cost of the opening and closing device can be reduced.

[0040] A microwave oven comprises the door opening and closing device, and the opening and closing device is arranged on the top of the door. The button slot is arranged above the handle of the door. The one end of the button 1 close to the lock pole 2 is arranged in the button slot in a sliding manner. The side of the button slot close to the lock pole 2 is provided with a through hole, and the one end of the transmission rod 13 away from the limiting part 12 penetrates through the through hole and abuts against the bottom of the lock pole 2.

[0041] Through the cooperation of the device and the microwave oven, the appearance of the microwave oven can be improved, and the convenience and safety of the microwave oven can be enhanced.

[0042] The furnace door further comprises a first limiting slot and a second limiting slot, one end of the first limiting slot and the second limiting slot is connected with the furnace door, the other end of the first limiting slot and the second limiting slot is respectively abutted or separated from the second locking rod 22 and the fourth locking rod 24, for limiting the activity range of the locking rod 2, guaranteeing the safety of the locking rod 2 before and after opening and closing the door, and preventing the locking rod 2 from falling off or displacement. The spring 3 is arranged between the first limiting slot and the second limiting slot, the spring 3 is arranged outside the third locking rod 23, and the two ends of the spring 3 are respectively abutted or separated from the second limiting slot and the bottom of the second locking rod 22.

[0043] Through the arrangement of the limiting slot, the up-down movement of the locking rod 2 can be protected, the stability and safety of the whole installation of the opening and closing device can be improved, the reliability of the installation of the opening and closing device on the microwave oven can be guaranteed, and the convenience of disassembly and assembly of the opening and closing device is improved.

[0044] Working principle:

[0045] By arranging the opening and closing device structure of the present application on the microwave oven door assembly, the locking rod 2 normally protrudes, is pressed to shrink, is shrunk under the positive downward pressure, is automatically bounced back after being closed under the positive force, is buckled on the hole of the panel to realize door locking, cannot be shrunk downward and cannot be unlocked to open the door when the button 1 on the door is not pressed, and the door can be opened after being unlocked by pressing the button 1. Specifically, the locking rod 2 is directly bounced up and buckled on the top panel when the door is closed, the button 1 is pressed, the locking rod 2 goes downward, and then the door is pulled to realize two-step door opening; one-step door closing can be realized when the door is closed; and the spring 3 realizes the reset function of the locking rod 2.

[0046] In the utility model, for any microwave oven, can include the furnace door opening and closing device structure described in the embodiment, and on the basis of the related structure and assembly relationship of the locking rod 2 and the button 1 provided in the embodiment, the microwave oven further comprises conventional components such as the furnace door, the furnace shell and the wire, and the like, and in view of the fact that they are all prior art, no further description is made here.

[0047] The above only describes preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A furnace door opening and closing device characterized by comprising: The key (1) includes a pressing part (11), a limiting part (12) and a transmission rod (13); the pressing part (11) is connected with the transmission rod (13) through the limiting part (12); the pressing part (11) and the limiting part (12) are movably arranged on the outside of the door of the microwave oven, and one end of the transmission rod (13) away from the limiting part (12) is slidably arranged through the door of the microwave oven; the other end of the transmission rod (13) away from the limiting part (12) is in abutment or separation with the bottom of the lock rod (2).

2. A door operator according to claim 1, wherein The key (1) includes a pressing part (11), a limiting part (12) and a transmission rod (13); the pressing part (11) is connected with the transmission rod (13) through the limiting part (12); the pressing part (11) and the limiting part (12) are movably arranged on the outside of the door of the microwave oven, and one end of the transmission rod (13) away from the limiting part (12) is slidably arranged through the door of the microwave oven; the other end of the transmission rod (13) away from the limiting part (12) is in abutment or separation with the bottom of the lock rod (2).

3. A door operator according to claim 2, wherein The end of the transmission rod (13) close to the limiting part (12) is a column, and the end of the transmission rod (13) away from the limiting part (12) is provided with a matching surface (131) and a connecting arc surface (132), and the outer edge of the matching surface (131) is connected with the outer edge of the connecting arc surface (132).

4. A door operator according to claim 3, wherein The angle between the matching surface (131) and the straight line where the outer side wall of the transmission rod (13) is located is α, and 90°<α<180°.

5. A door operator according to claim 3, wherein The lock rod (2) includes a first lock rod (21), a second lock rod (22), a third lock rod (23) and a fourth lock rod (24), one end of the first lock rod (21) is sequentially connected with one end of the second lock rod (22), the third lock rod (23) and the fourth lock rod (24), the other end of the first lock rod (21) is in abutment or separation with the panel of the top of the microwave oven in an up-down movable manner, and the other end of the fourth lock rod (24) is in abutment with the transmission rod (13) on the inner side.

6. A door operator according to claim 5, wherein The end of the first lock rod (21) close to the panel is conical, and the end of the first lock rod (21) close to the second lock rod (22), the second lock rod (22) and the third lock rod (23) are columnar.

7. A door operator according to claim 6, wherein The fourth lock rod (24) includes a first side plate (241), a second side plate (242), a third side plate (243), a fourth side plate (244) and a wedge block (245), the first side plate (241), the second side plate (242), the third side plate (243) and the fourth side plate (244) are connected in series to form a closed frame, and the top of the first side plate (241) is connected with the bottom of the third lock rod (23).

8. A door operator according to claim 7, wherein The fourth lock rod (24) further includes a wedge block (245), and the wedge block (245) is arranged on the top of the third side plate (243); the wedge block (245) is connected with the second side plate (242) and the fourth side plate (244) respectively.

9. A door operator according to claim 8, wherein The wedge block (245) includes an inclined surface, and the matching surface (131) of the transmission rod (13) is slidably attached to the inclined surface of the wedge block (245).

10. A microwave oven characterized by comprising: The door opening and closing device includes the device according to any one of claims 1-9, and the device is arranged on the top of the door.

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