A double-door structure

Abstract

This invention belongs to the field of ovens, specifically relating to a double-door structure. It addresses the problem that existing electronically controlled program-based speed adjustments cannot achieve linear control, precise matching, and flexibility, resulting in a poor user experience when opening the door. A double-door structure is provided, including a limiting door opening component, a damping component, and a driving component. One end of the limiting door opening component is located inside the oven body, and the other end is hinged to the side of the oven body. One end of the damping component is located in the oven body, and the other end is located on the limiting door opening component. One end of the adjusting component is connected to the limiting door opening component, and the other end is connected to the damping component. By rotating the cylinder in both directions, the adjusting component can be activated to apply pressure to the damping component, increasing or decreasing the damping force. This process conveniently switches between two adjustment modes and allows for linear adjustment according to the user's actual needs, ensuring that both the door opening angle and the damping force increase or decrease with the rotation of the rotating cylinder.

Description

Technical Field

[0001] This invention belongs to the field of ovens, specifically relating to a double-door structure. Background Technology

[0002] In the field of oven technology, the design of the door opening mechanism has a significant impact on user experience and cooking results. To save space, the door opening mechanism of existing ovens is usually located inside the oven body, which is formed by the oven body and partitions. For convenient adjustment of the door opening mechanism, multiple electrical components and control programs are typically integrated within the mechanism for easy adjustment.

[0003] Current ovens typically use electronic controls to adjust the door opening mechanism based on pre-set settings. However, this adjustment is a segmented, abrupt change, which has limitations in practical use and is difficult to adapt to diverse user needs and cooking scenarios. For example, in terms of door opening resistance and angle, the segmented adjustment cannot provide linear control. When the user's desired door opening resistance and angle fall within a specific segment, the segmented adjustment cannot precisely match the desired angle, lacking flexibility and resulting in a poor user experience.

[0004] Therefore, there is an urgent need for a double-door structure that can both conveniently achieve precise control of the door opening structure and allow for linear adjustment based on the actual needs of users. Summary of the Invention

[0005] To address the aforementioned problems in the prior art, this invention provides a double-door structure.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A double-door structure includes a limiting door opening component, a damping component, and a driving component. One end of the limiting door opening component is disposed inside the housing, and the other end is hinged to the side of the housing. One end of the damping component is disposed inside the housing, and the other end is disposed on the limiting door opening component. One end of the adjusting component is connected to the limiting door opening component, and the other end is connected to the damping component.

[0008] The housing is equipped with the driving component, which can switch between engaging with the limiting door opening component. When the driving component is engaged with the limiting door opening component, the driving component can adjust the opening angle of the limiting door opening component. When the driving component is disengaged from the limiting door opening component, the driving component is connected to the damping component to adjust the damping force of the damping component.

[0009] Preferably, the limiting door opening component includes an opening assembly, a limiting assembly, and a pulling assembly. The limiting assembly is disposed on the partition. One end of the opening assembly is hinged to the box body, and the other end is hinged to the limiting assembly, thus functioning as an opening door. One end of the pulling assembly is slidably connected to the opening assembly, and the other end is fixed to the partition. The pulling assembly automatically resets the two ends of the opening assembly when they are open or closed. The limiting assembly provides damping and limiting for the opening and closing of the opening assembly.

[0010] Preferably, the door opening assembly includes an opening and closing plate, a pull rod, a limiting platform, and a moving plate. The opening and closing plate is hinged to the housing, the limiting platform is fixed to the partition, the moving plate slides on the limiting platform, one end of the pull rod is hinged to the opening and closing plate, and the other end is hinged to the moving plate. The opening and closing angle of the opening and closing plate is proportional to the travel distance of the moving plate on the limiting platform.

[0011] Preferably, the limiting assembly includes a rotating screw, a limiting plate, and a chuck; one end of the rotating screw rotates on the limiting platform, and the other end passes through the housing; the chuck is located at the other end of the rotating screw; the limiting plate is located in the groove of the limiting platform and is threadedly connected to the rotating screw; the displacement of the limiting plate is achieved by rotating the rotating screw.

[0012] Preferably, the tension assembly includes a rocker arm and a tension spring. One end of the rocker arm is hinged to a protruding post of the partition, and the other end is slidably connected to the movable plate. The protruding post is parallel to the center line of the limiting platform, and the positions of the two ends of the stroke of the protruding post and the movable plate form a triangle. One end of the tension spring is disposed on the partition, and the other end is sleeved with the rocker arm. The tension of the tension spring causes the rocker arm to push the movable plate to move, and the movable plate can automatically reset when the angle of the tension spring changes and affects the tension value.

[0013] Preferably, the damping assembly includes an arc-shaped plate, a mounting base, a telescopic rod, a movable wheel, a compression plate, a compression spring, and an adjusting component; the arc-shaped plate is fixed to the partition plate, the mounting base is fixed to the movable plate, one end of the telescopic rod is slidably connected to the mounting base, the movable wheel is rotatably connected to the other end of the telescopic rod, the compression plate slides within the mounting base, and a compression spring is provided between the mounting base and the compression plate. The tension of the compression spring pushes the telescopic rod and the movable wheel to apply a damping force to the arc-shaped plate.

[0014] Preferably, the adjusting component includes an octagonal nut and an adjusting screw; an octagonal nut is fixedly connected to one side of the mounting base, the middle part of the adjusting screw is threadedly connected to the octagonal nut, and one end is movably connected to the extrusion plate. The adjusting screw is displaced by the threaded engagement between the adjusting screw and the octagonal nut, which pushes the extrusion plate to adjust the extrusion pressure.

[0015] Preferably, the driving component includes a torsion member and a gear set. The torsion member includes a rotating cylinder and a return spring. The return spring is sleeved on the rotating screw. The rotating cylinder is slidably connected to the rotating screw and engages with the chuck in the initial tension state of the return spring. One end of the gear set is located in the housing, and the other end is connected to the damping member.

[0016] Preferably, the gear set includes a transmission rod, a transmission gear, a fixed gear ring, a first bevel gear, and a second bevel gear. The transmission rod is rotatably mounted on the housing. One end of the transmission rod is provided with a transmission gear. The fixed gear ring is fixed on one side of the rotating cylinder and meshes with the transmission gear. The first bevel gear is provided at the other end of the transmission rod, and the second bevel gear slides on the adjusting screw. The first bevel gear and the second bevel gear mesh.

[0017] The beneficial effects of this invention are as follows: When the rotating cylinder is engaged with the chuck, the opening angle of the door in the limiting door opening component can be adjusted by twisting the rotating cylinder in both directions, so that the opening angle of the door is adjustable between 70 and 110 degrees; when the rotating cylinder is disengaged from the chuck, the gear set is connected to the damping component to realize the adjustment of the damping force of the damping component. By twisting the rotating cylinder in both directions, the adjustment component can be activated to apply pressure to the damping component to increase or decrease the damping force. In this process, the switching between the two adjustments is completed and the entire process is linearly adjusted according to the actual needs of the user, so that the opening angle and the opening damping force are increased or decreased by the forward and reverse rotation of the rotating cylinder. Attached Figure Description

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a side view of the housing of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the first type of door opening structure of the present invention;

[0021] Figure 3 This is a schematic diagram of a second three-dimensional structure of the door opening structure of the present invention;

[0022] Figure 4 This is a partial three-dimensional structural diagram of the door opening structure of the present invention;

[0023] Figure 5 This is a three-dimensional structural schematic diagram of the damping component of the present invention;

[0024] Figure 6 This is a side view of the housing of the present invention;

[0025] Figure 7 This is a partial three-dimensional structural diagram of the present invention;

[0026] Legend: 01. Box body; 1. Partition; 2. Opening and closing plate; 3. Pull rod; 4. Limiting platform; 5. Moving plate; 6. Swing rod; 7. Tension spring; 8. Arc plate; 9. Mounting base; 10. Telescopic rod; 11. Movable wheel; 12. Octagonal nut; 13. Adjusting screw; 14. Pressing plate; 15. Pressing spring; 16. Rotating screw; 17. Limiting plate; 18. Chuck; 19. Rotating cylinder; 20. Return spring; 21. Transmission rod; 22. Transmission gear; 23. Fixed gear ring; 24. First bevel gear; 25. Second bevel gear. Detailed Implementation

[0027] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0028] Example 1:

[0029] refer to Figures 1-7 Current ovens typically use electronic controls to adjust the door opening mechanism based on pre-set settings. However, this adjustment is a segmented, jump-like process, which has limitations in practical use and is difficult to adapt to diverse user needs and cooking scenarios. For example, in terms of door opening resistance and angle, the segmented adjustment cannot achieve linear control. When the user's desired door opening resistance and angle are within a specific segment range, the segmented adjustment cannot precisely match the desired values, lacking flexibility.

[0030] To address this, the present invention proposes a double-door structure, wherein an upper partition 1 is fixed inside the oven body 01, forming a cavity between the inner side of the oven body 01 and the partition 1. The double-door structure includes a limiting door component, a damping component, and a driving component. One end of the limiting door component is located inside the oven body 01, and the other end is hinged to the side of the oven body 01, forming a double door with the oven body 01, and the opening angle can be limited and adjusted. One end of the damping component is located on the inner side of the top of the oven body 01, and the other end is located on the limiting door component. The damping component provides a damping effect on the limiting door component, realizing the adjustment of the opening damping force. 1. A drive component is provided, with one end connected to the limiting opening and closing component and the other end connected to the damping component. The drive component can switch between the engaging state with the limiting opening component. The purpose of this design is to allow for convenient manual switching between adjusting the opening angle and the opening damping force through the engaging state. When the drive component is engaged with the limiting opening component, the opening angle of the limiting opening component can be adjusted. When the drive component is disengaged from the limiting opening component, the drive component is connected to the damping component to adjust the damping force. This allows for both convenient and precise control of the opening structure and linear adjustment according to the user's actual needs, creating a double-door structure.

[0031] Specifically, the limiting door opening component includes an opening assembly, a limiting assembly, and a tension assembly. The limiting assembly is located on the partition 1. One end of the opening assembly is hinged to the housing 01, and the other end is hinged to the limiting assembly, thus functioning as an opening door. One end of the tension assembly is slidably connected to the opening assembly, and the other end is fixed to the partition 1. The tension assembly automatically resets the opening and closing ends of the opening assembly. The limiting assembly provides damping and limiting for the opening and closing of the opening assembly.

[0032] More specifically, the door opening assembly includes an opening and closing plate 2, a pull rod 3, a limiting platform 4, and a moving plate 5. There are two opening and closing plates 2, with their ends, which are far apart from each other, hinged to the two sides of the box 01 respectively. The limiting platform 4 is fixed to the partition 1 and has two protruding guide rails. The moving plate 5 slides on the guide rails of the limiting platform 4. There are two pull rods 3, with one end of each pull rod 3 hinged to the opening and closing plate 2 and the other end hinged to the two protruding rods of the moving plate 5 respectively. The opening and closing angle of the opening and closing plate 2 is proportional to the travel of the moving plate 5 on the limiting platform 4. That is, the travel of the moving plate 5 on the limiting platform 4 is related to the opening and closing angle of the two doors. The maximum angle of the opening and closing doors is set to 110 degrees.

[0033] The limiting assembly includes a rotating screw 16, a limiting plate 17, and a chuck 18. One end of the rotating screw 16 rotates on the limiting platform 4, and the other end passes through the box 01 and is located on the rear wall of the box 01, i.e., the rear wall of the oven. The chuck 18 is fixed to the other end of the rotating screw 16, i.e., the end protruding from the rear wall of the oven. The limiting plate 17 slides in the groove of the limiting platform 4 and is threadedly connected to the rotating screw 16. Under the guidance of the groove of the limiting platform 4 and the limiting plate 17, the limiting plate 17 is displaced by rotating the rotating screw 16. The limiting plate 17 limits the stroke of the moving plate 5, shortening the stroke value of the moving plate 5. By changing the stroke value of the moving plate 5, the maximum range of the opening and closing door can be adjusted between 70 and 110 degrees, thereby meeting the user's need to change the opening and closing angle of the door in actual use.

[0034] The tension assembly includes a rocker arm 6 and a tension spring 7. One end of the rocker arm 6 is hinged to a protruding post of the partition plate 1, and the other end has a slot that slides with one of the protruding posts of the moving plate 5. The protruding post is parallel to the center line of the limiting platform 4. The two ends of the stroke value of the protruding post and the moving plate 5 form a triangle. One end of the tension spring 7 is located on the partition plate 1, and the other end is sleeved with the rocker arm 6. The tension of the tension spring 7 causes the rocker arm 6 to push the moving plate 5 to move. When the angle of the tension spring 7 changes and affects the tension value, the moving plate 5 can be automatically reset.

[0035] The damping assembly includes an arc-shaped plate 8, a mounting base 9, a telescopic rod 10, a movable wheel 11, a compression plate 14, a compression spring 15, and an adjusting component. The arc-shaped plate 8 is fixed to the partition plate 1. The middle part of the arc-shaped plate 8 is parallel to the two ends with grooves, and there is an arc transition between the middle part and the two end grooves. The mounting base 9 is fixed to the movable plate 5. One end of the telescopic rod 10 is slidably connected to the mounting base 9. The movable wheel 11 is rotatably connected to the other end of the telescopic rod 10. The movable wheel 11 fits into the groove of the arc-shaped plate 8. The compression plate 14 slides in the mounting base 9. A compression spring 15 is provided between the mounting base 9 and the compression plate 14. The initial tension of the compression spring 15 causes the telescopic rod 10 and the movable wheel 11 to apply a certain damping force to the arc-shaped plate 8. The damping force can make the door have a certain resistance during the actual opening and closing process and prevent it from swinging freely.

[0036] The adjusting component includes an octagonal nut 12 and an adjusting screw 13. An octagonal nut 12 is fixedly connected to the side of the mounting base 9 away from the arc plate 8. The middle part of the adjusting screw 13 is threadedly connected to the octagonal nut 12, and one end is movably connected to the extrusion plate 14. The adjusting screw 13 is displaced by the threaded engagement between the adjusting screw 13 and the octagonal nut 12, thereby pushing the extrusion plate 14 toward the arc plate 8 to push the extrusion spring 15, and thus adjusting the extrusion force of the extrusion plate 14.

[0037] The driving component includes a torsion knob and a gear set. The torsion knob includes a rotating cylinder 19 and a return spring 20. The return spring 20 is sleeved on the rotating screw 16. The rotating cylinder 19 is slidably connected to the rotating screw 16 and is engaged with the chuck 18 in the initial tension state of the return spring 20. The return spring 20 plays a reset role for the rotating cylinder 19. At this time, the limit component can be adjusted to change the opening and closing angle of the door. One end of the gear set is located in the housing 01, and the other end is connected to the damping component.

[0038] The gear set includes a transmission rod 21, a transmission gear 22, a fixed gear ring 23, a first bevel gear 24, and a second bevel gear 25. The transmission rod 21 is rotatably mounted on the rear wall of the housing 01. The transmission gear 22 is located at one end of the transmission rod 21 near the housing 01. The fixed gear ring 23 is fixed on one side of the rotating cylinder 19 located inside the housing 01. The rotating cylinder 19 drives the fixed gear ring 23 to move within the rotating screw 16. When the rotating cylinder 19 is pressed and disengaged from the chuck 18, the fixed gear ring 23 meshes with the transmission gear 22. The first bevel gear 24 is located at the other end of the transmission rod 21 (i.e., the end near the limiting platform 4). The second bevel gear 25 slides on the adjusting screw 13. The first bevel gear 24 and the second bevel gear 25 mesh.

[0039] The working principle of this embodiment is as follows: When adjusting the opening and closing of the oven door, the return spring 20 first causes the rotating cylinder 19 to engage with the chuck 18, that is, the drive component is initially connected to the door limiting assembly. The user can rotate the rotating cylinder 19 forward and backward on the rear wall of the oven, thereby changing the position of the limiting plate 17 by rotating the screw 16, thereby adjusting the stroke of the moving plate 5 and the opening and closing angle of the door; so that the opening and closing angle of the door is between 70-110 degrees; when it is necessary to change the resistance value of the opening and closing door, the user only needs to push the rotating cylinder 19 inward, and the rotating cylinder 19 moves a certain distance towards the inside of the cabinet 01. The rotating cylinder 19 facilitates the meshing of the gear set. Similarly, rotating it forward and backward can activate the adjustment component to apply pressure to the damping component to increase or decrease the damping force. This process is linearly adjusted according to the user's actual needs, so that the opening and closing angle and the opening and closing damping force are increased or decreased by the forward and reverse rotation of the rotating cylinder 19.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A double-door structure, characterized in that: A partition is fixed to the upper part of the box, and a cavity is formed between the inner side of the box and the partition. The cavity is equipped with a double door structure, which includes a limiting door opening component, a damping component, and a driving component. One end of the limiting door opening component is located inside the box, and the other end is hinged to the side of the box. One end of the damping component is located in the box, and the other end is located in the limiting door opening component. The driving component is located on the box, with one end connected to the limiting door opening component and the other end connected to the damping component. The driving component can switch between engaging with the limiting door opening component. When the driving component is engaged with the limiting door opening component, the driving component can adjust the opening angle of the limiting door opening component. When the driving component is disengaged from the limiting door opening component, the driving component connects to the damping component to adjust the damping force of the damping component. The limiting door opening component includes an opening assembly, a limiting assembly, and a pulling assembly. The limiting assembly is disposed on the partition. One end of the opening assembly is hinged to the box body, and the other end is hinged to the limiting assembly, thus functioning as an opening door. One end of the pulling assembly is slidably connected to the opening assembly, and the other end is fixed to the partition. The pulling assembly automatically resets the opening and closing ends of the opening assembly. The limiting assembly provides damping and limiting for the opening and closing of the opening assembly. The door opening assembly includes an opening and closing plate, a pull rod, a limiting platform, and a moving plate. The opening and closing plate is hinged to the box body, the limiting platform is fixed to the partition, and the moving plate slides on the limiting platform. One end of the pull rod is hinged to the opening and closing plate, and the other end is hinged to the moving plate. The opening and closing angle of the opening and closing plate is proportional to the travel distance of the moving plate on the limiting platform. The damping component includes an arc-shaped plate, a mounting base, a telescopic rod, a movable wheel, a compression plate, a compression spring, and an adjusting component. The arc-shaped plate is fixed to the partition plate, the mounting base is fixed to the movable plate, one end of the telescopic rod is slidably connected to the mounting base, the movable wheel is rotatably connected to the other end of the telescopic rod, the compression plate slides within the mounting base, and a compression spring is provided between the mounting base and the compression plate. The tension of the compression spring pushes the telescopic rod and the movable wheel to apply a damping force to the arc-shaped plate. The adjusting component includes an octagonal nut and an adjusting screw; an octagonal nut is fixedly connected to one side of the mounting base, the middle part of the adjusting screw is threadedly connected to the octagonal nut, and one end is movably connected to the extrusion plate. The adjusting screw is displaced by the threaded engagement between the adjusting screw and the octagonal nut, which pushes the extrusion plate to adjust the extrusion pressure.

2. The double-door structure according to claim 1, characterized in that: The limiting assembly includes a rotating screw, a limiting plate, and a chuck; one end of the rotating screw is rotatably connected to the limiting platform, and the other end passes through the housing; the chuck is located at the other end of the rotating screw; the limiting plate is located in the groove of the limiting platform and is threadedly connected to the rotating screw; the displacement of the limiting plate is achieved by rotating the rotating screw.

3. The double-door structure according to claim 1, characterized in that: The tension assembly includes a rocker arm and a tension spring. One end of the rocker arm is hinged to a protruding post of the partition, and the other end is slidably connected to the movable plate. The protruding post is parallel to the center line of the limiting platform, and the positions of the two ends of the stroke of the protruding post and the movable plate form a triangle. One end of the tension spring is located on the partition, and the other end is sleeved with the rocker arm. The tension of the tension spring causes the rocker arm to push the movable plate to move, thereby achieving the automatic reset of the movable plate.

4. A double-door structure according to claim 2, characterized in that: The driving component includes a torsion member and a gear set. The torsion member includes a rotating cylinder and a return spring. The return spring is sleeved on the rotating screw. The rotating cylinder is slidably connected to the rotating screw and is engaged with the chuck in the initial tension state of the return spring. One end of the gear set is located in the housing, and the other end is connected to the damping member.

5. A double-door structure according to claim 4, characterized in that: The gear set includes a transmission rod, a transmission gear, a fixed gear ring, a first bevel gear, and a second bevel gear. The transmission rod is rotatably mounted on the housing. One end of the transmission rod is provided with a transmission gear. The fixed gear ring is fixed on one side of the rotating cylinder and meshes with the transmission gear. The first bevel gear is located at the other end of the transmission rod, and the second bevel gear slides on the adjusting screw. The first bevel gear and the second bevel gear mesh.

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