Self-correcting formal refrigerator door locking mechanism

Abstract

The application relates to the technical field of door body connection, and provides a self-straightening refrigerator door body locking mechanism, which comprises a hinge seat and a locking piece which are rotationally connected with each other; the locking piece is provided with a clamping arm; a space formed between the clamping arm and the locking piece body is provided with a straightening block; when the clamping arm is extruded and deformed, the straightening block supports the clamping arm. Therefore, the clamping arm is supported by the straightening block, the elastic deformation amount of the clamping arm is reduced, and plastic deformation is avoided. The application has the advantages of simple structure, the function of straightening and recovering the deformed clamping arm, the plastic deformation of the clamping arm of the locking piece can be effectively prevented, and the locking effect is ensured.

Description

Technical Field

[0001] This invention belongs to the field of door connection technology, and particularly relates to a self-aligning formal refrigerator door locking mechanism. Background Technology

[0002] See Figure 1 In the existing refrigerator door 3, during the closing process, the head of the locking arm 21 of the locking member 2 contacts the locking connector 11 of the hinge seat 1. Then, as the door 3 rotates, the locking arm 21 is squeezed by the locking connector 11 and undergoes elastic deformation. Combined with... Figure 2 When the door 3 is completely closed, the locking arm 21 loses its constraint and elastically recovers, forming an overlap area of ​​a certain width with the locking connector 11, thereby achieving locking and preventing the door 3 from opening automatically.

[0003] However, in actual use, due to injection molding deformation or repeated opening and closing of the door 3 a certain number of times, the locking arm 21 undergoes irreversible deformation. The location and direction of the deformation are as follows: Figure 1 As shown in the diagram, during the closing process of door 3, the contact area between the head of the latching arm 21 and the latching connector 11 increases, making it more difficult to close the door. In severe cases, due to excessive force, the latching arm 21 may break and fail, losing its locking function. After door 3 is closed, a gap may appear, increasing the risk of the door opening on its own.

[0004] In addition, locking components are usually made of plastic, which is greatly affected by the injection molding process and ambient temperature. After molding, they may shrink and deform, and this deformation is difficult to detect. However, it can lead to abnormal noises when opening and closing the door or breakage of the locking components.

[0005] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the Invention

[0006] The technical problem solved by this invention is that locking components deform and fail after repeated door closing operations, resulting in abnormal closing noises or even breakage due to deformation. By using a corrective block to support the locking arm, the elastic deformation is reduced, preventing plastic deformation. This corrective effect on deformed locking components allows them to maintain their designed shape and avoids abnormal closing noises.

[0007] To address the aforementioned problems, this invention provides a self-aligning refrigerator door locking mechanism, comprising a hinge seat and a locking member rotatably connected to each other; the locking member is provided with a snap-fit ​​arm; a straightening block is provided in the space formed between the snap-fit ​​arm and the locking member body, and the straightening block provides support for the snap-fit ​​arm when the snap-fit ​​arm is compressed and deformed.

[0008] According to the self-correcting refrigerator door locking mechanism of the present invention, the corrective block and the locking arm are in surface contact.

[0009] According to the self-aligning refrigerator door locking mechanism of the present invention, the straightening block includes a first support surface and a second support surface; the first support surface is in contact with the inner side of the snap-fit ​​arm, and the second support surface is in contact with the transition surface between the snap-fit ​​arm and the locking body.

[0010] According to the self-aligning refrigerator door locking mechanism of the present invention, the transition surface between the snap-fit ​​arm and the locking body is arc-shaped.

[0011] According to the self-aligning refrigerator door locking mechanism of the present invention, the latch of the hinge seat is provided with a recessed guide structure.

[0012] According to the self-aligning refrigerator door locking mechanism of the present invention, the cross-sectional shape of the end of the snap-fit ​​arm is arc-shaped, and the cross-sectional shape of the guide structure is also arc-shaped.

[0013] In summary, this invention uses a corrective block to support the locking arm, reducing its elastic deformation and preventing plastic deformation. The invention has a simple structure and provides corrective and restorative effects on the deformed locking arm, effectively preventing plastic deformation of the locking arm and ensuring a secure locking effect. Attached Figure Description

[0014] Figure 1 This is a structural diagram of existing technology;

[0015] Figure 2 yes Figure 1 A schematic diagram of the working status;

[0016] Figure 3 This is a schematic diagram of the structure of the present invention;

[0017] Figure 4 yes Figure 3 Schematic diagram of the middle hinge seat;

[0018] Figure 5 yes Figure 3 Schematic diagram of the central locking component;

[0019] Figure 6 yes Figure 3 Schematic diagram of the structure of the orthopedic block;

[0020] Figure 7 This is a schematic diagram of the working state of the present invention;

[0021] In the figure: 1-hinge seat, 11-clamping connector, 111-guide structure; 2-locking component, 21-clamping arm; 3-door body, 4-correcting block, 41-first support surface, 42-second support surface. Detailed Implementation

[0022] See Figure 3This invention provides a self-aligning refrigerator door locking mechanism, comprising a hinge seat 1 and a locking member 2 rotatably connected to each other; the locking member 2 is provided with a snap-fit ​​arm 21; combined with Figure 5 A straightening block 4 is provided within the space formed between the locking arm 21 and the locking body. When the locking arm 21 is deformed by compression, the straightening block 4 fits against the locking arm 21 to form a support. After the external force is removed, it helps the locking arm 21 to restore its shape and prevents it from undergoing irreversible plastic deformation. It also supports the locking arm 21 that has undergone plastic deformation to restore it to its original shape and prevent it from failing.

[0023] Even better, the transition surface between the snap-fit ​​arm 21 and the locking body is arc-shaped to avoid stress concentration during deformation.

[0024] See Figure 6 The orthopedic block 4 includes a first support surface 41 and a second support surface 42; the first support surface 41 is in contact with the inner side of the snap-fit ​​arm 21, and the second support surface 42 is in contact with the transition surface between the snap-fit ​​arm 21 and the locking body; the orthopedic block 4 and the snap-fit ​​arm 21 are in surface contact, with a large bearing area, uniform force distribution, and easier return to the original shape.

[0025] The orthopedic block 4 of the present invention reduces the elastic deformation of the locking arm 21, making the closing of the door 3 smoother; at the same time, it avoids large plastic deformation of the locking arm 21 and maintains the locking effect.

[0026] As one example, see Figure 4 The hinge seat 1 has a recessed guide structure 111 on its snap-fit ​​connector 11; combined with Figure 7 During the closing process of the door 3, the end of the snap-fit ​​arm 21 first contacts the guide structure 111 of the snap-fit ​​connector 11, which reduces the squeezing deformation and lowers the probability of plastic deformation.

[0027] Furthermore, the cross-sectional shape of the end of the snap-fit ​​arm 21 is arc-shaped, and the guide structure 111 is also arc-shaped.

[0028] The locking component and the snap-fit ​​arm of the present invention are integrally formed. Preferably, the locking component 2 of the present invention is injection molded.

[0029] If the locking part 2 undergoes slight deformation during molding or use, the orthopedic block 4 has a corrective function, enabling it to maintain its designed shape and preventing abnormal noises when closing the door.

[0030] In summary, this invention provides a self-correcting locking mechanism for a refrigerator door. By supporting the locking arm with a corrective block, it reduces the elastic deformation of the locking arm and prevents plastic deformation. This invention has a simple structure and provides corrective restoration for the deformed locking arm, effectively preventing plastic deformation of the locking arm and ensuring a secure locking effect.

[0031] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A self-aligning formal refrigerator door locking mechanism, characterized in that, It includes a hinge seat and a locking member that are rotatably connected to each other; the locking member is provided with a snap-fit ​​arm; a straightening block is provided in the space formed between the snap-fit ​​arm and the locking member body, and the straightening block provides support for the snap-fit ​​arm when the snap-fit ​​arm is squeezed and deformed. The orthopedic block and the snap-fit ​​arm are in surface contact. The orthopedic block includes a first support surface and a second support surface; the first support surface is in contact with the inner side of the snap-fit ​​arm, and the second support surface is in contact with the transition surface between the snap-fit ​​arm and the locking body.

2. The self-aligning refrigerator door locking mechanism as described in claim 1, characterized in that, The transition surface between the snap-fit ​​arm and the locking body is arc-shaped.

3. The self-aligning formal refrigerator door locking mechanism as described in claim 1 or 2, characterized in that, The hinge seat has a recessed guide structure on the snap joint.

4. The self-aligning refrigerator door locking mechanism as described in claim 3, characterized in that, The cross-sectional shape of the end of the snap-fit ​​arm is arc-shaped, and the cross-sectional shape of the guide structure is also arc-shaped.

Images