A hinge for a flanged center door of a two-door product
Patent Information
- Application Number
- CN202522285808.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-10-29
AI Technical Summary
卡扣式连接虽装配速度快,但长期使用过程中,门板频繁开合产生的振动会导致卡扣磨损,进而出现连接松动,门板易出现晃动或位移;而简易螺栓连接若未设置防松结构,在温差变化导致部件热胀冷缩的影响下,螺栓易发生松动,同样会降低连接稳定性
[0009]This utility model, through the coordinated design of flange, threaded connecting shaft, and limiting hole, increases the flange and adds iron to important positions, which greatly improves the strength of the middle door hinge. The yield strength value increases from 600 N to 2000 N, giving the middle door hinge a reinforced connection structure with stability.
Smart Images

Figure CN224770031U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refrigerator accessories technology, and in particular to a hinged hinge for a two-door product. Background Technology
[0002] Traditional hinges for refrigerator doors often use a single snap-fit or simple bolt connection. While snap-fit connections offer quick assembly, frequent opening and closing of the door during long-term use can cause wear on the snaps, leading to loosening and potential door wobbling or displacement. Simple bolt connections, without anti-loosening mechanisms, are prone to loosening due to thermal expansion and contraction caused by temperature changes, similarly reducing connection stability. Furthermore, some hinge-to-door connections lack reinforcement. Traditional single-flanged hinges repeatedly exhibited severe deformation in standard inclined plane impact packaging tests, with deformation exceeding 3mm in the center cover and over 6mm in individual pieces, resulting in severe door misalignment and complete functional failure, significantly impacting product usability. Therefore, to address these issues, this invention proposes a flanged hinge. This structure, through the coordinated design of flanged limiting, threaded connecting shaft, and limiting hole installation, effectively overcomes the technical deficiencies of traditional hinges, improving the refrigerator's stability and durability. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a hinged middle door for a two-door product, which can effectively make up for the technical defects of traditional door hinges and improve the stability and durability of the refrigerator.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:
[0005] A hinged door for a two-door product, characterized in that: it includes a hinge base; the hinge base includes a fixed plate, a support plate, and a connecting shaft; the fixed plate has a first flange and a second flange at both ends; the support plate has bearing holes; the connecting shaft is matched with the refrigerator door panel through a threaded structure, and the connecting shaft is connected to the refrigerator door panel through the threaded structure.
[0006] The first and second flanges of the fixing plate are parallel, and the flanges are used to abut against the refrigerator door panel; the fixing plate is provided with a first limiting hole and a second limiting hole, and the limiting holes are installed on the refrigerator body by screws; the second flange of the fixing plate is connected to the support plate at a slope at the vertical position of the second limiting hole.
[0007] The support plate has a protrusion, which is used to abut against the refrigerator door panel or the door suction device.
[0008] The above technical solution has the following beneficial effects:
[0009] This utility model, through the coordinated design of flange, threaded connecting shaft, and limiting hole, increases the flange and adds iron to important positions, which greatly improves the strength of the middle door hinge. The yield strength value increases from 600 N to 2000 N, giving the middle door hinge a reinforced connection structure with stability. Attached Figure Description
[0010] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0011] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] In the figure: fixed plate 1, first flange 11, first limiting hole 14, second limiting hole 12, second flange 13, support plate 2, connecting shaft 21, protrusion 22. Detailed Implementation
[0014] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0015] See Figure 1 As shown, this utility model discloses a hinged middle door for a two-door product, including a hinge base; the hinge base includes a fixing plate 1, a support plate 2, and a connecting shaft 21; the fixing plate 1 has a first flange 11 and a second flange 13 at both ends; the support plate 2 has bearing holes; the connecting shaft 21 is matched with the refrigerator door panel through a threaded structure.
[0016] The first flange 11 and the second flange 13 of the fixing plate are parallel, and the flange is used to abut against the refrigerator door panel; the fixing plate 1 is provided with a first limiting hole 14 and a second limiting hole 12, and the limiting hole is installed on the refrigerator body by screws; the second flange 13 of the fixing plate 1 is connected to the support plate 2 at a slope position at the vertical position of the second limiting hole 12.
[0017] The support plate 2 is provided with a protrusion 22, which is used to abut against the refrigerator door panel or the door suction device.
[0018] The principle of this invention: The "flanged edge" above the hinge in the double-flanged design is a key structure for initial positioning and protection of the refrigerator door panel during use. When the door panel and hinge are initially joined, the flange directly abuts against a specific part of the refrigerator door panel, limiting horizontal displacement and ensuring precise alignment of the door panel with the subsequent hinge connection structure, avoiding assembly difficulties due to misalignment. Furthermore, during daily use, the frequent opening and closing of the door panel causes slight shaking or displacement. The flange continuously abuts against the door panel, preventing excessive shaking or lateral movement, reducing collisions and wear between the door panel and other door components, and maintaining stability during opening and closing, preventing door panel misalignment from affecting sealing performance. First, the flange abuts against the door panel to achieve initial positioning, ensuring precise alignment of the connecting shaft and limiting holes between the door panel and hinge. Then, the threaded structure of the connecting shaft secures the door panel and hinge together. Finally, the limiting holes and screws are used to stably install the hinge onto the refrigerator door. The flange continues to play a limiting and protective role, while the connecting shaft and the limiting hole jointly undertake the functions of load transfer and structural fixation, ultimately realizing the flexible and stable opening and closing of the refrigerator door panel, while ensuring the durability and reliability of the connection structure.
[0019] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.
Claims
1. A hinge for a flipper center door of a two-door product, characterized by: Including hinge base; The hinge base includes a fixed plate (1), a support plate (2), and a connecting shaft (21); The fixing plate (1) has a first flange (11) and a second flange (13) at both ends. The support plate (2) is provided with bearing holes; The connecting shaft (21) is matched with the connecting shaft (21) by a threaded structure, and the connecting shaft (21) is connected to the refrigerator door panel by a threaded structure.
2. The hinged center door of a two-door product according to claim 1, characterized in that: The first flange (11) and the second flange (13) of the fixing plate are parallel, and the flange is used to abut against the refrigerator door panel; The fixing plate (1) is provided with a first limiting hole (14) and a second limiting hole (12), and the limiting holes are installed on the refrigerator body by screws; The second flange (13) of the fixing plate (1) is connected to the support plate (2) at a slope in the vertical position of the second limiting hole (12).
3. The hinge according to claim 1, wherein: The support plate (2) is provided with a protrusion (22), which is used to abut against the refrigerator door panel or the door suction device.