Double door structure of an oven

The oven's double doors are opened and closed in a coordinated manner by means of a transmission rod, a semi-circular gear, and a linkage mechanism. This solves the problem of requiring two hands to operate in existing technologies, improves operational convenience and stability, and enhances the door's assist effect.

CN224300691UActive Publication Date: 2026-05-29LINKCO ELECTRICAL LNDUSTRIES LTD
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Patent Information

Application Number
CN202521258826.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-19
Publication Date
2026-05-29
Estimated Expiration
2035-06-19

AI Technical Summary

Technical Problem

The existing double-door structure of ovens cannot achieve simultaneous opening and closing of the doors, requiring users to operate them with both hands separately, which reduces the convenience of operation.

Method used

It adopts a transmission rod, a semi-circular gear, a sliding rack and a linkage mechanism. The transmission rod drives the semi-circular gear, and the sliding rack cooperates with the limit guide rail to realize the linkage opening and closing of the two sets of door panels, and the spring provides assistance.

Benefits of technology

It enables the synchronous opening and closing of two sets of door panels, reduces the operating space requirement, improves operational convenience and stability, and enhances the assist effect of door opening and closing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of double-door structures of oven, it is related to oven technical field, including two groups of door leaf main body rotationally installed on cabinet and fixedly installed installation bottom plate in cabinet, two groups of door leaf main body rotationally installed at the opening of cabinet, two groups of limit guide rail are fixedly installed on the installation bottom plate, sliding rack is slidably connected on the limit guide rail, two groups of gear shaft are fixedly provided on the installation bottom plate, half round gear is rotationally installed on the gear shaft, and sliding rack is engaged transmission connection, transmission rod is rotationally connected on the half round gear, the end of transmission rod away from half round gear slidably penetrates connection through slot rotationally connected on door leaf main body, and two groups of sliding rack are connected by linkage mechanism;The utility model realizes the linkage opening and closing of two groups of door leaf main body by linkage mechanism, and user only needs to operate one side door leaf to open or close two side door leaf simultaneously, greatly improve the convenience of operation.
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Description

Technical Field

[0001] This utility model relates to the field of oven technology, and in particular to a double-door structure for an oven. Background Technology

[0002] In the field of modern home appliances, ovens are indispensable equipment in kitchens and living spaces, and their user-friendly design and functionality directly affect the user's daily experience. However, in existing oven designs, the oven structure consists of a door and a cabinet. The cabinet has an opening, which is closed by the door. When in use, opening the door allows items to be stored inside the oven, while the door provides relative isolation between the stored items and the outside environment.

[0003] To minimize the space occupied by the doors when opening and closing, cabinets used in space-constrained areas typically employ a double-door design, consisting of two opposing doors, the first and second doors. However, current double-door cabinet structures require separate control for the opening and closing of the first and second doors, making it impossible to coordinate their operation. Users must operate both doors simultaneously with both hands, resulting in relatively low ease of use. Utility Model Content

[0004] This invention provides a double-door structure for an oven, which can solve the problem that the doors cannot be opened and closed in conjunction with each other in the prior art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A double-door structure for an oven includes two sets of door panels rotatably mounted on a cabinet body and a mounting base plate fixedly mounted inside the cabinet body. A front door frame is fixedly mounted on the side of the mounting base plate near the door, and connecting slots are provided on both sides of the front door frame. The two sets of door panels are rotatably mounted at the opening of the cabinet body. Two sets of limiting guide rails are fixedly mounted on the mounting base plate, and sliding racks are slidably connected to the limiting guide rails. Two sets of gear shafts are fixedly mounted on the mounting base plate, and semi-circular gears that mesh and drive with the sliding racks are rotatably mounted on the gear shafts. A transmission rod is rotatably connected to the semi-circular gears, and the end of the transmission rod away from the semi-circular gear slides through the connecting slot and is rotatably connected to the door panel. The two sets of sliding racks are connected by a linkage mechanism.

[0007] Preferably, the upper end of the door leaf body is provided with a door leaf shaft that is rotatably connected to the housing, the lower end of the door leaf body is rotatably mounted with a door leaf wheel, the door leaf wheel is rotatably mounted on the housing, and the lower part of the door leaf body is fixedly provided with a door leaf support plate that is rotatably connected to the transmission rod.

[0008] Preferably, the transmission rod has a Z-shaped structure, with its lower end slidably mounted on the mounting base plate and rotatably connected to the door body, and its upper end rotatably connected to a semi-circular gear.

[0009] Preferably, the semi-circular gear is provided with a gear through groove to reduce the overall weight of the semi-circular gear.

[0010] Preferably, the linkage mechanism includes a connecting support fixedly disposed between two sets of limiting guide rails, a driving link rotatably connected to the connecting support, and driven links rotatably connected to both ends of the driving link, with the two sets of driven links respectively rotatably connected to a sliding rack on the same side.

[0011] Preferably, both sides of the long side of the drive linkage are provided with limiting grooves for limiting the closing of the door body, and the limiting grooves abut against the sliding rack when the door body is closed.

[0012] Preferably, a guide rail baffle for limiting the sliding movement of the sliding rack is fixedly provided on the side of the limiting guide rail away from the connecting support.

[0013] Preferably, a pin is fixedly provided on the upper end of the mounting base plate away from the door body, and a spring is rotatably connected to the pin, which is rotatably connected to one end of the drive linkage.

[0014] Preferably, a second pin is fixedly installed on the upper end of the mounting base plate near the door body, and a second spring is rotatably connected to the second pin. The second spring is rotatably connected to the side of the transmission rod connected to the semi-circular gear.

[0015] Preferably, a first pin is fixedly installed on the upper end of the mounting base plate away from the door body, and a first spring is rotatably connected to the first pin. The first spring is rotatably connected to one end of the drive linkage. A second pin is fixedly installed on the upper end of the mounting base plate near the door body, and a second spring is rotatably connected to the second pin. The second spring is rotatably connected to one side of the semi-circular gear connected to the transmission rod.

[0016] The beneficial effects of this utility model are:

[0017] The two sets of door panels open and close in tandem via a linkage mechanism, allowing users to open or close both doors simultaneously by operating only one side, greatly improving ease of use. The double-door design also minimizes the space occupied by the doors during opening and closing, making it suitable for space-constrained environments.

[0018] Through the coordination of the transmission rod, semi-circular gear, sliding rack, and linkage mechanism, smooth door opening and closing is achieved, resulting in a stable and reliable structure. The inclusion of springs one and two provides assistance in opening and closing the door, making operation easier and less strenuous. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the closed state of a double-door structure oven according to this utility model;

[0021] Figure 2 This is a schematic diagram of the double-door structure of an oven according to this utility model, showing the open state.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Mounting base plate; 2. Front door frame; 21. Connecting slot; 3. Door leaf body; 31. Door leaf shaft; 32. Door leaf support plate; 33. Door leaf turntable; 4. Transmission rod; 5. Semi-circular gear; 51. Gear slot; 6. Gear shaft; 7. Limiting guide rail; 71. Guide rail baffle; 8. Sliding rack; 9. Drive linkage; 91. Limiting groove; 10. Connecting support; 11. Driven linkage; 12. Pin one; 13. Spring one; 14. Pin two; 15. Spring two. Detailed Implementation

[0024] 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.

[0025] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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 a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between 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.

[0027] Please see Figures 1-2 As shown, this utility model is a double-door structure for an oven, including two sets of door leaf bodies 3 rotatably mounted on the oven body and a mounting base plate 1 fixedly mounted inside the oven body. A front door frame 2 is fixedly installed on the side of the mounting base plate 1 near the oven door, and connecting slots 21 are provided on both sides of the front door frame 2. The two sets of door leaf bodies 3 are rotatably mounted at the opening of the oven body. Two sets of limiting guide rails 7 are fixedly installed on the mounting base plate 1. A sliding rack 8 is slidably connected to the limiting guide rails 7. Two sets of gear shafts 6 are fixedly installed on the mounting base plate 1. A semi-circular gear 5 that meshes and drives with the sliding rack 8 is rotatably mounted on the gear shaft 6. A transmission rod 4 is rotatably connected to the semi-circular gear 5. The end of the transmission rod 4 away from the semi-circular gear 5 slides through the connecting slot 21 and is rotatably connected to the door leaf body 3. The two sets of sliding racks 8 are connected by a linkage mechanism.

[0028] In an optional embodiment, the upper end of the door leaf body 3 is provided with a door leaf shaft 31 that is rotatably connected to the housing, the lower end of the door leaf body 3 is rotatably mounted with a door leaf wheel 33, the door leaf wheel 33 is rotatably mounted on the housing, and the lower part of the door leaf body 3 is fixedly provided with a door leaf support plate 32 that is rotatably connected to the transmission rod 4.

[0029] It should be noted that the door leaf roller 33 and door leaf support plate 32 further enhance the stability of the door leaf body 3 and reduce friction and wear during rotation.

[0030] In an optional embodiment, the transmission rod 4 has a Z-shaped structure, with its lower end slidably mounted on the mounting base plate 1 and rotatably connected to the door body 3, and its upper end rotatably connected to the semi-circular gear 5.

[0031] It should be noted that the Z-shaped structure design makes the transmission rod more efficient and stable in transmitting power, while ensuring smooth opening and closing of the door.

[0032] In an optional embodiment, the semi-circular gear 5 is provided with a gear through groove 51 for reducing the overall weight of the semi-circular gear 5.

[0033] It should be noted that the semi-circular gear 5 and the gear through groove 51 reduce the weight of the gear, improve the transmission efficiency, and reduce the manufacturing cost.

[0034] In an optional embodiment, the linkage mechanism includes a connecting support 10 fixedly disposed between two sets of limiting guide rails 7, a driving link 9 rotatably connected to the connecting support 10, and driven links 11 rotatably connected to both ends of the driving link 9, with the two sets of driven links 11 respectively rotatably connected to the sliding rack 8 on the same side.

[0035] It should be noted that the linkage mechanism enables the synchronous opening and closing of the two sets of door panels 3, improving the convenience and efficiency of operation.

[0036] In an optional embodiment, both sides of the long side of the drive linkage 9 are provided with limiting grooves 91 for limiting the closing of the door body 3. The limiting grooves 91 abut against the sliding rack 8 when the door body 3 is closed.

[0037] It should be noted that the limiting groove 91 ensures the accurate position of the door when closed, preventing the door from being over-closed or over-opened, thus improving safety and stability during use.

[0038] In an optional embodiment, a guide rail baffle 71 for sliding limit of the sliding rack 8 is fixedly provided on the side of the limiting guide rail 7 away from the connecting support 10.

[0039] It should be noted that the guide rail baffle 71 prevents the sliding rack 8 from derailing or sliding excessively during the sliding process, ensuring the smoothness and accuracy of the door opening and closing.

[0040] In an optional embodiment, a pin 12 is fixedly provided on the upper end of the mounting base plate 1 away from the door body 3, and a spring 13 is rotatably connected to the pin 12. The spring 13 is rotatably connected to one end of the drive linkage 9.

[0041] It should be noted that the spring-13 design makes the door easier and less strenuous to open and close, improving the user experience.

[0042] In an optional embodiment, a second pin 14 is fixedly installed on the upper end of the mounting base plate 1 near the door body 3. A second spring 15 is rotatably connected to the second pin 14. The second spring 15 is rotatably connected to the side of the transmission rod 4 connected to the semi-circular gear 5.

[0043] It should be noted that the setting of spring 2 15 makes the door easier and less strenuous to open and close, and the different installation position of spring 1 13 provides a different tensile force for opening and closing the door, which can meet the needs of users with different requirements.

[0044] In an optional embodiment, a pin 12 is fixedly installed on the upper end of the mounting base plate 1 away from the door body 3. A spring 13 is rotatably connected to the pin 12. The spring 13 is rotatably connected to one end of the drive linkage 9. A second pin 14 is fixedly installed on the upper end of the mounting base plate 1 near the door body 3. A second spring 15 is rotatably connected to the pin 14. The spring 15 is rotatably connected to one side of the semi-circular gear 5 connected to the transmission rod 4.

[0045] It should be noted that the combined operation of the two sets of springs not only enhances the door's opening and closing assistance but also makes the door smoother during operation, adapting to different door opening and closing needs and improving product adaptability and user satisfaction.

[0046] The working principle of this utility model is as follows: two sets of door leaf bodies 3 are rotatably installed at the opening of the box. The upper end of the door leaf body 3 is rotatably connected to the box through the door leaf shaft 31, and the lower end is connected to the box through the door leaf wheel 33, so as to ensure that the door leaf can rotate smoothly.

[0047] The transmission rod 4 has a Z-shaped structure. One end is rotatably connected to the door leaf support plate 32 at the bottom of the door leaf body 3, and the other end is rotatably connected to the semi-circular gear 5 and slides through the connecting groove 21 on the front door frame 2.

[0048] Two sets of limiting guide rails 7 are fixedly installed on the mounting base plate 1, and the sliding rack 8 slides on the limiting guide rails 7. The semi-circular gear 5 is rotatably mounted on the gear shaft 6 and meshes with the sliding rack 8 for transmission.

[0049] The drive link 9 is rotatably connected to the connecting support 10, and both ends are rotatably connected to the driven link 11. The driven link 11 is then rotatably connected to the sliding rack 8 on the same side, realizing the linkage of the two sets of sliding racks 8.

[0050] The mounting base plate 1 is equipped with pin 12 and pin 14, which are respectively connected to spring 13 and spring 15 to provide assistance for opening and closing the door. Limiting grooves 91 are provided on both sides of the long side of the drive linkage 9 to limit the closing of the door body 3. A guide rail baffle 71 is fixedly installed on the side of the limiting guide rail 7 away from the connecting support 10 to limit the sliding of the sliding rack 8.

[0051] When a set of door leaf bodies 3 is pushed, the transmission rod 4 drives the semi-circular gear 5 to rotate, which in turn drives the sliding rack 8 to slide on the limit guide rail 7. The sliding of the sliding rack 8 drives the drive link 9 to rotate through the driven link 11, which in turn drives the sliding rack 8 on the other side to slide, realizing the linkage opening and closing of the two sets of door leaf bodies 3.

[0052] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A double-door structure for an oven, characterized in that, The enclosure includes two sets of door leaf bodies (3) rotatably mounted on the enclosure and a mounting base plate (1) fixedly mounted inside the enclosure. A front door frame (2) is fixedly installed on the side of the mounting base plate (1) near the door. A connecting slot (21) is provided on both sides of the front door frame (2). The two sets of door leaf bodies (3) are rotatably mounted at the opening of the enclosure. Two sets of limiting guide rails (7) are fixedly mounted on the mounting base plate (1). A sliding rack (8) is slidably connected to the limiting guide rails (7). Two sets of gear shafts (6) are fixedly mounted on the mounting base plate (1). A semi-circular gear (5) is rotatably mounted on the gear shaft (6) and meshes with the sliding rack (8). A transmission rod (4) is rotatably connected to the semi-circular gear (5). The end of the transmission rod (4) away from the semi-circular gear (5) slides through the connecting slot (21) and is rotatably connected to the door leaf body (3). The two sets of sliding racks (8) are connected by a linkage mechanism.

2. The double-door structure of an oven according to claim 1, characterized in that, The upper end of the door body (3) is provided with a door shaft (31) that is rotatably connected to the box body. The lower end of the door body (3) is rotatably installed with a door wheel (33). The door wheel (33) is rotatably installed on the box body. The lower part of the door body (3) is fixedly provided with a door support plate (32) that is rotatably connected to the transmission rod (4).

3. The double-door structure of an oven according to claim 1, characterized in that, The transmission rod (4) has a Z-shaped structure. Its lower end is slidably mounted on the mounting base plate (1) and rotatably connected to the door body (3). Its upper end is rotatably connected to the semi-circular gear (5).

4. The double-door structure of an oven according to claim 1, characterized in that, The semi-circular gear (5) is provided with a gear through groove (51) for reducing the overall weight of the semi-circular gear (5).

5. The double-door structure of an oven according to claim 1, characterized in that, The linkage mechanism includes a connecting support (10) fixedly disposed between two sets of limiting guide rails (7). A driving link (9) is rotatably connected to the connecting support (10). Both ends of the driving link (9) are rotatably connected to driven links (11). The two sets of driven links (11) are rotatably connected to the sliding rack (8) on the same side.

6. The double-door structure of an oven according to claim 5, characterized in that, The drive link (9) has a limiting groove (91) on both sides of its long side for limiting the closing of the door body (3). The limiting groove (91) abuts against the sliding rack (8) when the door body (3) is closed.

7. The double-door structure of an oven according to claim 1, characterized in that, The limiting guide rail (7) is fixedly provided with a guide rail baffle (71) for sliding limiting the sliding rack (8) on the side away from the connecting support (10).

8. The double-door structure of an oven according to claim 1, characterized in that, A pin (12) is fixedly installed on the upper end of the mounting base plate (1) away from the door body (3). A spring (13) is rotatably connected to the pin (12). The spring (13) is rotatably connected to one end of the drive linkage (9).

9. The double-door structure of an oven according to claim 1, characterized in that, A pin (14) is fixedly installed on the upper end of the mounting base plate (1) near the door body (3). A spring (15) is rotatably connected to the pin (14). The spring (15) is rotatably connected to the transmission rod (4) on the side of the semi-circular gear (5).

10. The double-door structure of an oven according to claim 1, characterized in that, A pin (12) is fixedly installed on the upper end of the mounting base plate (1) away from the door body (3). A spring (13) is rotatably connected to the pin (12). The spring (13) is rotatably connected to one end of the drive linkage (9). A pin (14) is fixedly installed on the upper end of the mounting base plate (1) near the door body (3). A spring (15) is rotatably connected to the pin (14). The spring (15) is rotatably connected to one side of the semi-circular gear (5) connected to the transmission rod (4).