Oven door structure

By introducing a door hook, tension spring, and roller fulcrum structure into the oven door structure, the problem of automatic door descent is solved, allowing the door to remain stationary at any angle, thus improving operational convenience and user experience.

CN224149356UActive Publication Date: 2026-04-21LINKCO ELECTRICAL LNDUSTRIES LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LINKCO ELECTRICAL LNDUSTRIES LTD
Filing Date
2025-05-15
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing electric ovens with top and bottom opening doors automatically descend due to gravity when opened, causing noise and door damage, inconvenience in operation, and a poor user experience.

Method used

Design an oven door structure that combines a door hook and a tension spring with a fulcrum structure. The fulcrum structure consists of a roller or a V-shaped roller, which restricts the rotation of the door hook. Through the tension of the tension spring and the restriction of the fulcrum, the oven door remains stationary after being opened, preventing it from falling automatically.

Benefits of technology

The door does not automatically rise or fall after being opened; users only need to apply a little force to adjust the angle, making it easy to operate, reducing noise, and improving the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an oven door structure which comprises an oven door, the bottom of the oven door is hinged to the bottom end of an oven opening in one end of an oven, a door hook is hinged to the lower portion of the inner end face of the oven door and comprises a connecting rod part and a hook head part, and the bottom end of the hook head part is provided with an extension spring connected with the end, away from the oven opening, in the oven. A fulcrum structure which can abut against the bottom face of the hook head portion is arranged on the inner wall of one side of the oven. The utility model relates to an oven door structure, which belongs to the technical field of oven equipment, solves the problem that an oven door is crashed due to automatic descending in the prior art, is convenient to operate, and brings good use experience to a user.
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Description

Technical Field

[0001] This utility model belongs to the field of oven equipment technology, and more specifically, it relates to an oven door structure. Background Technology

[0002] An electric oven is a kitchen appliance that uses radiant heat from an electric heating element to bake food. The oven door is typically hinged to the oven using either a left-right or up-down hinge, allowing it to open and close horizontally or vertically. When the door opens vertically, gravity causes it to automatically descend, leaving it fully open. This can cause the door to collide with the support below, producing significant noise and potentially damaging the door. To avoid this, users must pull the handle until the door is fully open, a cumbersome and inefficient operation that results in a poor user experience. Utility Model Content

[0003] To address the above shortcomings, the purpose of this utility model is to provide an oven door structure that solves the problem of oven doors that open and close automatically flipping downwards under the action of gravity when opened.

[0004] To achieve the above objectives, this utility model provides an oven door structure, including an oven door, the bottom of which is hinged to the bottom of the oven opening at one end. A door hook is hinged to the lower part of the inner end face of the oven door. The door hook includes a connecting rod and a hook head. The bottom end of the hook head is provided with a tension spring that connects to the inner wall of the other end of the oven. A fulcrum structure that can abut against the bottom surface of the hook head is provided on the inner wall of one side of the oven.

[0005] As a preferred embodiment of this utility model, the fulcrum structure is a roller structure.

[0006] As a preferred technical solution of this utility model, a mounting base is provided on the inner wall of one side of the oven, and the fulcrum structure is installed on the mounting base by bolts.

[0007] As a preferred technical solution of this utility model, the mounting base is a profile structure, the two ends of the profile structure are provided with connecting parts that connect to the inner wall of the oven, the middle part of the profile structure is provided with an arched part, the arched part is provided with a transverse sliding groove, and the fulcrum structure is installed at the transverse sliding groove by a bolt structure.

[0008] As a preferred embodiment of this utility model, the two ends of the tension spring are connected to the pull ring on the inner wall of the oven at the hook head via pull hooks. The bottom of the hook head is provided with multiple positioning pins, and the pull hook at the end of the tension spring is hung on the positioning pins.

[0009] As a preferred technical solution of this utility model, the top surface of the connection between the top of the hook head and the connecting rod is provided with an arc-shaped transition concave surface, the top surface of the connecting rod is an arc-shaped arched surface, and the fulcrum structure can abut against the arc-shaped transition concave surface and the arc-shaped arched surface.

[0010] As a preferred embodiment of this utility model, the fulcrum structure is a V-shaped roller structure.

[0011] Compared with existing technologies, this utility model has the following beneficial effects:

[0012] The oven door structure of this utility model ensures that after the door is opened to a certain angle, the combined force on the door under the action of gravity and the pulling action of the tension spring and door hook is zero. Therefore, the door will not automatically descend or rise and will remain stationary. Users only need to apply a little force by hand to change the opening angle of the door, which can meet the user's needs. This solves the problem of the door being damaged when it automatically descends in the prior art. It is easy to operate and brings users a good user experience. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0014] Figure 1 This is a schematic diagram of the oven door structure in the closed state according to Example 1;

[0015] Figure 2 This is a schematic diagram of the oven door structure in Example 1 when the door opening angle is 20°;

[0016] Figure 3 This is a schematic diagram of the oven door structure in Example 1 when the door opening angle is 85°;

[0017] Figure 4 This is a schematic diagram of the oven door structure in Example 2;

[0018] Figure 5 This is an enlarged sectional view of the combination of the mounting base and the fulcrum structure in Embodiment 2.

[0019] Explanation of key figure labels:

[0020] 1. Cabinet door; 2. Oven; 3. Door hook; 31. Connecting rod; 32. Hook head; 33. Positioning pin; 34. Arc-shaped transition concave surface; 4. Tension spring; 5. Pivot structure; 6. Mounting base; 61. Connecting part; 62. Arched part; 63. Transverse slide groove. Detailed Implementation

[0021] 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. The embodiments of the present utility model will be described below according to its overall structure.

[0022] The specific implementation method of this utility model is as follows:

[0023] Example 1

[0024] See attached document Figures 1-3 As shown, an oven door structure includes an oven door 1. The bottom of the oven door 1 is rotatably connected to the bottom end of the oven opening at one end of the oven 2 via a hinge. A door hook 3 is hinged to the lower part of the inner end of the oven door 1. The door hook 3 is connected to the oven door 1. The door hook 3 includes a connecting rod part 31 and a hook head 32. The bottom end of the hook head 32 is provided with a tension spring 4 connected to the end of the oven 2 away from its opening. A fulcrum structure 5 is provided on the inner wall of one side of the oven 2, which can abut against the bottom surface of the hook head 32.

[0025] In the oven door structure of this utility model, the oven door 1 of the oven 2 can be pulled open from the top, and the door 1 is pulled open by the door hook 3 and the tension spring 4 inside the oven 2; see reference Figure 1 When the oven door 1 is closed, it is in a vertical position. Under the tension of the tension spring 4, the door hook 3 is restricted from rotating upward due to the fulcrum structure 5. The door hook 3 provides a pulling force towards the oven door 2, making it difficult for the oven door 1 to rotate downward and open. This ensures that the oven 2 can be reliably sealed, preventing heat loss from the oven 2. When the oven door 1 is opened to a small angle, such as less than 20°, the oven door 1 is in a tilted position. Although the oven door 1 is subjected to gravity, which creates an outward force at the hinge between the door hook 3 and the oven door 1, the pulling force of the door hook 3 on the oven door 1 is relatively large due to the tension of the tension spring 4. Therefore, as long as the user does not apply any force to the oven door 1, the oven door 1 will automatically close inward.

[0026] Reference Figure 2When the door 1 is opened and positioned at a 20° angle to the vertical, the door 1 is tilted. Under the influence of gravity and the pulling force exerted by the tension spring 4 and the door hook 3, the resultant force at the hinge point between the door hook 3 and the door 1 is zero. Therefore, the door 1 will not rotate downwards under gravity, but will remain open. Similarly, if the user continues to rotate the door 1 downwards to any angle, the door 1 will remain stationary under the influence of gravity and the pulling force, provided that no other external forces are applied. (Refer to...) Figure 3 The oven door 1 opens at an angle of 85° to the vertical, at which point the door is stationary. Therefore, after opening to a certain angle, the oven door 1 will not automatically descend or rise, remaining stationary. Users can easily change the opening angle of the door by gently applying force, meeting their needs and solving the problem of the door 1 being damaged when it automatically descends in existing technology. This design is convenient and provides users with a good user experience.

[0027] In this embodiment, the fulcrum structure 5 is a roller structure. The fulcrum structure 5 abuts against the top surface of the connecting rod 1 of the door hook 3. During the opening of the cabinet door 1, the door hook 3 will move, and the fulcrum structure 5 and the top surface of the connecting rod 1 will slide relative to each other. Therefore, using a roller structure as the fulcrum structure 5 can reduce friction and avoid the situation where the cabinet door is stuck due to excessive friction between the connecting rod 1 and the fulcrum structure 5. The roller of the roller structure is connected to the top surface of the connecting rod 1 in a rolling manner, which is a smooth contact. When moving relative to each other, no loud noise will be generated, reducing the generation of noise and helping to create a good home environment.

[0028] In this embodiment, the top surface of the hook head 32 at the connection point with the connecting rod 31 is provided with an arc-shaped transition concave surface 34, and the top surface of the connecting rod 31 is an arc-shaped arched surface. The fulcrum structure 5 can abut against the arc-shaped transition concave surface 34 and the arc-shaped arched surface. The arc-shaped transition concave surface 34 and the arc-shaped arched surface have a smooth transition, which facilitates the smooth relative sliding of the fulcrum structure 5 on the arc-shaped transition concave surface 34 and the arc-shaped arched surface.

[0029] In this embodiment, a mounting base 6 is provided on the inner wall of one side of the oven 2, and the fulcrum structure 5 is mounted on the mounting base 6 by bolts. The front side of the mounting base 6 is a flat structure and will not interfere with the door hook 3. The fulcrum structure 5 can be quickly fixed to the front side of the mounting base 6 by bolts.

[0030] Example 2

[0031] The technical solution of this embodiment is largely the same as that of embodiment 1, except that, referring to... Figures 4-5The mounting base 6 is a one-piece molded profile structure. Both ends of the profile structure have connecting portions 61 that connect to the inner wall of the oven 2. The middle of the profile structure has an arched portion 62, and the arched portion 62 has a transverse sliding groove 63. The fulcrum structure 5 is installed at the transverse sliding groove 63 by bolts. The fulcrum structure 5 is a roller structure. The fulcrum structure 5 is adjustablely mounted on the transverse sliding groove 63, allowing adjustment of its transverse position, thereby adjusting the position where it abuts against the door hook 3. This is because the tension spring 4 will fatigue after a period of use. Under the same tension length, the pulling force will decrease. The fulcrum structure 5 is used to limit the dynamic rotation angle of the door hook 3. Therefore, by adjusting the position of the fulcrum structure 5, the rotation angle of the door hook 3 when pulling the door 1 can be changed, thereby changing the direction of the force exerted by the tension spring 4 on the door 1 when pulling it through the door hook 3. With the tension length of the tension spring 4 remaining constant, the change in the direction of the force will also change the magnitude of the force exerted on the door 1. Therefore, by adjusting the position of the fulcrum structure 5, the elastic force of the tension spring 4 can be reduced.

[0032] In this embodiment, the two ends of the tension spring 4 are connected to the pull ring on the inner wall of the oven 2 via hooks. The bottom of the hook head 32 is provided with multiple positioning pins 33, and the hooks at the ends of the tension spring 4 are hooked onto these positioning pins 33. By connecting the tension spring 4 to different positioning pins 33, the direction of the pulling force applied by the tension spring 4 to the door hook 3 can be adjusted. By adjusting the position of the tension spring 4 connected to the hook head 32, the range of opening angles at which the oven door 1 can remain stationary can be adjusted, thus meeting the usage requirements.

[0033] In this embodiment, multiple positioning pins 33 are evenly arranged from the bottom end of the hook head 32 toward the connection between the hook head 32 and the connecting rod 31. The hook head 32 and the connecting rod 31 form a bent rod structure. The tension spring 4 is connected to different positioning pins 33, which can adjust the distance between the force application point of the tension spring 4 on the hook head 32 and the fulcrum structure 5, as well as adjust the direction of the force applied by the tension spring 4 on the hook head 32.

[0034] Reference Figure 5 The fulcrum structure 5 is a V-shaped roller structure. The V-shaped groove on the roller of the V-shaped roller structure can limit the longitudinal direction of the connecting rod 31 to prevent the connecting rod 31 from deflecting and ensure that the door hook 3 can rotate stably up and down.

[0035] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the present invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An oven door structure, characterized in that, Includes a door (1), the bottom of which is hinged to the bottom of the oven (2) opening. A door hook (3) is hinged to the lower part of the inner end face of the door (1). The door hook (3) includes a connecting rod (31) and a hook head (32). The bottom of the hook head (32) is provided with a tension spring (4) that is connected to the inner wall of the other end of the oven (2). A fulcrum structure (5) is provided on the inner wall of one side of the oven (2) that can abut against the bottom surface of the hook head (32).

2. The oven door structure according to claim 1, characterized in that, The fulcrum structure (5) is a roller structure.

3. The oven door structure according to claim 1 or 2, characterized in that An mounting base (6) is provided on the inner wall of one side of the oven (2), and the fulcrum structure (5) is mounted on the mounting base (6) by bolts.

4. The oven door structure according to claim 3, characterized in that, The mounting base (6) is a profile structure. Both ends of the profile structure are provided with connecting parts (61) that connect to the inner wall of the oven (2). The middle part of the profile structure is provided with an arched part (62). The arched part (62) is provided with a transverse sliding groove (63). The fulcrum structure (5) is installed at the transverse sliding groove (63) by bolts.

5. The oven door structure according to claim 4, characterized in that, The two ends of the tension spring (4) are connected to the pull ring on the inner wall of the oven (2) via the hook head (32). The bottom of the hook head (32) is provided with multiple positioning pins (33), and the hook at the end of the tension spring (4) is hung on the positioning pins (33).

6. The oven door structure according to claim 4, characterized in that, The top surface of the hook head (32) at the connection point with the connecting rod (31) is provided with an arc-shaped transition concave surface (34), and the top surface of the connecting rod (31) is an arc-shaped arched surface. The fulcrum structure (5) can abut against the arc-shaped transition concave surface (34) and the arc-shaped arched surface.

7. The oven door structure according to claim 4, characterized in that, The fulcrum structure (5) is a V-shaped roller structure.