Anti-deformation refrigerator hinge bearing structure

Abstract

The utility model discloses an anti-deformation refrigerator hinge bearing structure which comprises a hinge base, a hinge core, a positioning structure and an assembly fixing structure. A profiling reinforcing rib is arranged in the head area of the hinge base, so that the bearing strength of the hinge shaft part is enhanced; and the door body moving area is provided with a bent clearance part, so that friction interference with the refrigerator door body is avoided. The hinge core penetrates through the mandrel of the hinge seat and is fixedly connected with the hinge seat; and a pin shaft is arranged at the end part of the hinge core and is used for riveting and fixing the hinge core and the hinge seat. A positioning structure adopts a square positioning hole, so that the assembly precision is improved; the assembly fixing structure is provided with the hinge cover through cooperation of the stamping notch and the buckling piece. Through the profiling reinforcing ribs which are integrally punched and formed and the optimized structural design, the deformation resistance and the bearing strength of the hinge are remarkably improved, meanwhile, the friction loss is reduced, the assembly process is simplified, the production efficiency is improved, and the hinge is suitable for connecting multiple groups of refrigerator door bodies.

Description

Technical Field

[0001] This utility model relates to the technical field of refrigerator hinges, and in particular to a load-bearing structure for a deformation-resistant refrigerator hinge. Background Technology

[0002] As a key component connecting the refrigerator door and the refrigerator body, the refrigerator hinge's load-bearing strength, deformation resistance, and assembly precision directly affect the refrigerator's lifespan and user experience. Currently, refrigerator hinges on the market mainly suffer from the following problems:

[0003] Insufficient load-bearing strength: Traditional hinges usually adopt a flat structure or a simple flanged and bent design, which are prone to deformation during long-term load-bearing or transportation. In particular, the force is concentrated at the hinge axis, which can easily lead to hinge twisting or breakage, affecting the smoothness of the refrigerator door opening and closing.

[0004] Low assembly precision: Existing hinges mostly use circular positioning holes or ordinary screws for fixing, which can easily cause deviations during assembly, resulting in a loose fit between the refrigerator door and the refrigerator body, affecting sealing and aesthetics.

[0005] Friction interference problem: Some hinges come into contact with the refrigerator door during the opening and closing process, which can easily cause abnormal noise or wear after long-term use, reducing the service life of the hinges.

[0006] Complex manufacturing process: Some reinforcing structures are designed with welding or split parts, which not only increases production costs, but may also make it difficult to control dimensional accuracy and affect assembly efficiency.

[0007] While existing technologies offer some improvements to address the aforementioned issues, such as adding local reinforcing ribs or optimizing the hinge shape, they still suffer from limitations in structural strength enhancement, high processing costs, and insufficient assembly precision. Therefore, a novel load-bearing structure for refrigerator hinges is urgently needed to ensure high strength while optimizing the assembly process, improving production efficiency, and reducing frictional losses. Utility Model Content

[0008] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0009] Therefore, to solve the above-mentioned technical problems, this utility model provides the following technical solution: a load-bearing structure for a deformation-resistant refrigerator hinge, comprising...

[0010] The hinge base has a contoured reinforcing rib in its head area to enhance the load-bearing strength of the hinge shaft; the hinge base has a bending clearance in the door movement area to avoid interference and friction with the refrigerator door.

[0011] A hinge core, a spindle that passes through the hinge seat and is fixedly connected to the hinge seat; a pin is arranged at the end of the hinge core for riveting and fixing the hinge core to the hinge seat.

[0012] The positioning structure includes positioning holes arranged on the hinge seat, including square holes and screw fixing holes, for mounting the hinge seat;

[0013] The assembly is fixed, and the hinge seat has a stamped notch for arranging the hinge cover.

[0014] As a preferred embodiment of the anti-deformation refrigerator hinge load-bearing structure of this utility model, the conforming reinforcing ribs are distributed in an L-shape along the head area and the bending clearance of the hinge seat, and the conforming reinforcing ribs are arranged in a protruding shape on the hinge seat to form an integral reinforced support with the surface of the hinge seat.

[0015] As a preferred embodiment of the anti-deformation refrigerator hinge load-bearing structure of this utility model, the cross-section of the contour-following reinforcing rib is U-shaped and integrally stamped with the outline of the hinge seat to enhance the anti-deformation ability of the hinge shaft.

[0016] As a preferred embodiment of the anti-deformation refrigerator hinge load-bearing structure of this utility model, the positioning hole is located at the mounting end of the hinge seat, the square hole is tightly fitted with the positioning protrusion on the refrigerator body to achieve high-precision assembly positioning, and the screw fixing hole is used to cooperate with the screw to realize the installation and fastening of the hinge seat.

[0017] As a preferred embodiment of the anti-deformation refrigerator hinge load-bearing structure of this utility model, the bending clearance part is an arc-shaped bending structure, with its top end smoothly transitioning to the head area of ​​the hinge seat and its bottom end connecting to the tail area of ​​the hinge seat, so that the hinge seat and the refrigerator door do not contact each other or rub when the refrigerator door is opened and closed.

[0018] As a preferred embodiment of the anti-deformation refrigerator hinge load-bearing structure of this utility model, the stamping notch is located on the edge of the hinge seat, and the hinge cover is raised and covers the stamping notch.

[0019] As a preferred embodiment of the anti-deformation refrigerator hinge load-bearing structure of this utility model, the outer circumferential wall of the hinge core is provided with a wear-resistant coating to reduce frictional loss when the hinge core rotates.

[0020] As a preferred embodiment of the anti-deformation refrigerator hinge load-bearing structure of this utility model, the hinge seat is integrally stamped from cold-rolled steel plate, and the hinge core is made of cold-drawn round steel Q235A, ensuring the high strength and wear resistance of the overall structure.

[0021] The beneficial effects of this utility model are:

[0022] 1. This utility model adopts a contour-following reinforcing rib design. The head area of ​​the hinge seat adopts an integrally stamped U-shaped contour-following reinforcing rib, which is distributed in an L-shape along the hinge axis and the bending clearance part to form a three-dimensional support structure, which greatly enhances the bending resistance of the axis area and avoids deformation problems caused by transportation or long-term use.

[0023] 2. This utility model uses a square hole that fits tightly with the positioning protrusion on the refrigerator body. Compared with the traditional round hole, it can effectively prevent assembly misalignment, ensure accurate alignment of the door and the refrigerator body, reduce adjustment time, and improve assembly efficiency.

[0024] 3. The hinge seat of this utility model is formed by stamping, and the contoured reinforcing rib is integrally formed with the hinge body, which reduces welding or splicing processes, reduces processing difficulty, improves dimensional consistency, and facilitates mass production.

[0025] 4. The hinge seat of this utility model adopts an arc-shaped bending structure in the movable area of ​​the door, so that the refrigerator door does not come into contact with the hinge seat when it is opened and closed, avoiding abnormal noise and wear, and extending the service life of the hinge.

[0026] 5. The hinge seat of this utility model has a stamped notch on its edge, which facilitates the assembly and fixing of the hinge cover, reduces additional fasteners, and lowers manufacturing costs. Attached Figure Description

[0027] 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. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0029] Figure 2 This is a schematic diagram of the structure of this utility model from a bottom view.

[0030] Figure 3 This is a side view of the structure of this utility model.

[0031] In the diagram: 100, hinge seat; 101, contoured reinforcing rib; 102, bent clearance section;

[0032] 200. Hinge core; 201. Pin;

[0033] 300. Positioning structure; 301. Square hole; 302. Screw fixing hole;

[0034] 400. Assembly and fixing structure; 401. Stamping notch; 402. Hinge cover. Detailed Implementation

[0035] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0036] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0038] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0039] Example 1

[0040] Reference Figures 1-3 The first embodiment of this utility model provides a load-bearing structure for a deformation-resistant refrigerator hinge, including a hinge base 100, a hinge core 200, a positioning structure 300, and an assembly and fixing structure 400.

[0041] Hinge base 100:

[0042] It is made of cold-rolled steel sheet by one-piece stamping and has an overall long strip structure.

[0043] The head area is provided with a contoured reinforcing rib 101, which is a rib structure that protrudes along the surface of the hinge seat to enhance the load-bearing strength of the hinge shaft.

[0044] The door's moving area is provided with a bending clearance part 102, which is an arc-shaped structure that bends inward to avoid interference and friction with the refrigerator door.

[0045] Hinge core 200:

[0046] It is made of cold-drawn round steel Q235A and has a spindle that passes through the hinge seat 100.

[0047] It is fixedly connected to the hinge seat 100 by an interference fit.

[0048] The hinge core 200 has a pin 201 at its end for riveting and fixing the hinge core 200 to the hinge seat 100.

[0049] Positioning structure 300:

[0050] This includes a positioning hole located at the mounting end of the hinge seat 100.

[0051] The positioning holes include a square hole 301 and a screw fixing hole 302.

[0052] The square hole 301 is used to cooperate with the positioning protrusion on the refrigerator body to achieve precise positioning.

[0053] Screw fixing hole 302 is used to install fastening screws.

[0054] Assembly and fixing structure 400:

[0055] The hinge seat 100 has a stamped notch 401 on its edge.

[0056] The hinge cover 402 is an injection molded part, which protrudes and covers the stamping notch 401, and is fixed by a snap-fit ​​method.

[0057] Work process:

[0058] During assembly, first align the hinge seat 100 with the positioning protrusion of the housing through the square hole 301, and then fix it with screws through the screw fixing hole 302. The hinge core 200 is inserted into the door connection hole. When the door opens and closes, the bent clearance part 102 ensures that it does not contact the door, and the contoured reinforcing rib 101 provides support to prevent deformation.

[0059] Example 2

[0060] Reference Figures 1-3 This is the second embodiment of the present invention, which differs from the first embodiment in that: based on embodiment 1, this embodiment optimizes the conformal reinforcing rib 101.

[0061] The contoured reinforcing ribs 101 are distributed in an L-shape along the head region and the bending clearance portion 102 of the hinge seat 100. The cross-section of the contoured reinforcing ribs 101 is U-shaped and is integrally stamped with the surface of the hinge seat 100 to form a continuous reinforced structure.

[0062] Enhancement mechanism:

[0063] The L-shaped distribution simultaneously strengthens both axial and radial stress areas;

[0064] The U-shaped cross section provides multi-directional bending resistance.

[0065] One-piece molding ensures structural integrity.

[0066] Example 3

[0067] Reference Figures 2-3 This is the third embodiment of the present invention. The difference between this embodiment and the first embodiment is that, based on the above embodiments, a wear-resistant coating (which can be a polytetrafluoroethylene wear-resistant coating) is sprayed on the outer wall of the hinge core 200, and the coating thickness is preferably 0.05-0.1mm.

[0068] Example 4

[0069] Reference Figures 1-2 This is the fourth embodiment of the present invention. The difference between this embodiment and the first embodiment is that the assembly and fixing structure 400 is improved based on the above embodiments.

[0070] The stamping notch 401 is a rectangular notch, and the hinge cover 402 is fixed to the notch by a snap-fit ​​method, which eliminates the need for additional fasteners, simplifies the assembly steps, and shortens the hinge assembly time.

[0071] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0072] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A load-bearing structure for a deformation-resistant refrigerator hinge, characterized in that: include The hinge base (100) has a contoured reinforcing rib (101) in its head area to enhance the load-bearing strength of the hinge shaft; the hinge base (100) has a bending clearance part (102) in the door moving area to avoid interference and friction with the refrigerator door. A hinge core (200) passes through the hinge seat (100) and is fixedly connected to the hinge seat (100); a pin (201) is arranged at the end of the hinge core (200) for riveting and fixing the hinge core (200) to the hinge seat (100). The positioning structure (300) includes positioning holes arranged on the hinge seat (100), including a square hole (301) and a screw fixing hole (302) for mounting the hinge seat (100); The assembly fixing structure (400) has a stamped notch (401) on the hinge seat (100) for arranging the hinge cover (402).

2. The anti-deformation refrigerator hinge load-bearing structure as described in claim 1, characterized in that: The contoured reinforcing ribs (101) are distributed in an L-shape along the head region and the bent clearance portion (102) of the hinge seat (100). The contoured reinforcing ribs (101) are arranged in a protruding shape on the hinge seat (100) to form an integral reinforced support with the surface of the hinge seat (100).

3. The anti-deformation refrigerator hinge load-bearing structure as described in claim 1, characterized in that: The cross-section of the contoured reinforcing rib (101) is U-shaped and is integrally stamped with the contour of the hinge seat (100) to enhance the deformation resistance of the hinge shaft.

4. The anti-deformation refrigerator hinge load-bearing structure as described in claim 1, characterized in that: The positioning hole is located at the mounting end of the hinge seat (100). The square hole (301) fits tightly with the positioning protrusion on the refrigerator body to achieve high-precision assembly positioning. The screw fixing hole (302) is used to cooperate with the screw to realize the installation and fastening of the hinge seat (100).

5. The anti-deformation refrigerator hinge load-bearing structure as described in claim 1, characterized in that: The bending clearance part (102) is an arc-shaped bending structure. Its top end smoothly transitions to the head area of ​​the hinge seat (100), and its bottom end connects to the tail area of ​​the hinge seat (100), so that the hinge seat (100) and the refrigerator door do not come into contact or rub against each other when the refrigerator door is opened and closed.

6. The anti-deformation refrigerator hinge load-bearing structure as described in claim 1, characterized in that: The stamping notch (401) is located on the edge of the hinge seat (100), and the hinge cover (402) is raised and covers the stamping notch (401).

7. The anti-deformation refrigerator hinge load-bearing structure as described in claim 1, characterized in that: The outer circumferential wall of the hinge core (200) is provided with a wear-resistant coating to reduce frictional loss when the hinge core (200) rotates.

8. The anti-deformation refrigerator hinge load-bearing structure as described in claim 1, characterized in that: The hinge seat (100) is integrally stamped from cold-rolled steel plate, and the hinge core (200) is made of cold-drawn round steel Q235A.

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