Refrigerator self-locking structure and refrigerator thereof

By combining a rotating stop unit and a self-locking column on the refrigerator door, the problem that the existing refrigerator self-locking structure is only effective when the door is fully closed is solved, and the self-locking effect is improved at any angle.

CN224215667UActive Publication Date: 2026-05-08NINGBO FOTILE KITCHEN WARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO FOTILE KITCHEN WARE CO LTD
Filing Date
2025-04-17
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The existing refrigerator self-locking structure can only effectively lock when the refrigerator door is almost completely closed, resulting in poor self-locking performance.

Method used

A refrigerator self-locking structure including a self-locking column and a stop unit was designed. The stop unit can rotate during the opening or closing of the refrigerator door. As the door rotates, it abuts against the self-locking column and returns to its original position without external force, thus achieving self-locking.

Benefits of technology

It achieves effective locking when the refrigerator door is closed at any angle, improving the self-locking effect, and the design of the elastic element ensures that the self-locking pin moves and locks smoothly.

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Abstract

The utility model relates to the technical field of refrigerators, in particular to a refrigerator self-locking structure and a refrigerator thereof. The refrigerator self-locking structure comprises a self-locking column and a locking assembly, the self-locking column is connected to a refrigerator door body, the locking assembly is connected to a refrigerator body, the locking assembly comprises a stopping unit, the stopping unit can move between a first position and a second position through rotation, and along with opening or closing of the refrigerator door body, the self-locking column forms a moving path; the second position is located in the moving path, and the stop unit is configured to move from the second position to the first position in response to abutting of the self-locking column and move back to the second position without external force. The refrigerator door locking device has the advantages that the stop unit can flexibly rotate and switch between the first position and the second position in response to the pushing force of the self-locking column, avoids the refrigerator door body in the closing process of the refrigerator door body, and is clamped with the self-locking column after the refrigerator door body is closed, so that the locking of the refrigerator door body is completed.
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Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, and in particular to a refrigerator self-locking structure and the refrigerator thereof. Background Technology

[0002] Existing refrigerator self-locking mechanisms typically involve a latching structure on the refrigerator door and another latching structure on the refrigerator body. When the refrigerator door is closed, the two latching structures engage with each other to achieve locking.

[0003] However, in practical applications, the self-locking structure designed according to the above structure can only lock together and function when the refrigerator door is closed at a very small angle and is almost completely closed, so the self-locking effect is not good. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a refrigerator self-locking structure.

[0005] A refrigerator self-locking structure includes: a self-locking post connected to the refrigerator door; and a locking assembly connected to the refrigerator body. The locking assembly includes a stop unit that can rotate between a first position and a second position. As the refrigerator door opens or closes, the self-locking post forms a movement path, the second position is located within the movement path, and the stop unit is configured to move from the second position to the first position in response to the abutment of the self-locking post, and to move back to the second position without external force.

[0006] With this configuration, as the refrigerator door closes, the self-locking pin moves along its path toward the refrigerator body as the door rotates and comes into contact with the stop unit. The stop unit is in the second position in its natural state. After contacting the self-locking pin, it moves from the second position to the first position in response to the driving force of the self-locking pin. When the stop unit is in the first position, it leaves the path and does not interfere with the movement of the self-locking pin. As the refrigerator door wall moves, the self-locking pin moves into place, and the stop unit returns to the second position and stops and limits the self-locking pin, thereby locking the refrigerator door from opening.

[0007] In one embodiment, the locking assembly further includes a mounting base, and the stop unit includes a stop member and an elastic member, one end of the elastic member being connected to the mounting base and the other end being connected to the stop member, thereby driving the stop member to rotate from the first position to the second position.

[0008] In one embodiment, the mounting base has a protruding abutment block and a protruding post, the elastic element is a torsion spring, the elastic element is wound around the protruding post, one end is connected to the abutment block, and the other end is connected to the stop element.

[0009] In one embodiment, the stop includes a first abutting surface facing away from the refrigerator body and extending obliquely in a direction close to the refrigerator body.

[0010] In one embodiment, the stop includes a second abutment surface facing the refrigerator body and extending obliquely in a direction close to the refrigerator body.

[0011] In one embodiment, the mounting base has a mounting groove, a portion of the stop unit is disposed in the mounting groove, and an opening is provided on the groove wall of the mounting groove. When the stop unit is in the second position, a portion of the stop unit extends out of the mounting groove through the opening.

[0012] In one embodiment, the mounting base includes a base body and a cover body. The base body has the mounting groove, and the cover body covers the opening of the mounting groove. The groove wall of the mounting groove has a plurality of buckles protruding, and the buckles engage with the cover body.

[0013] In one embodiment, the stop includes a main body, a rotating part, and an abutting part. The main body is connected to the rotating part, the rotating part is rotatably connected to the mounting base, and the abutting part is connected to the end of the main body away from the rotating part, and the abutting part is used to abut against the self-locking pin.

[0014] In one embodiment, the upper and lower sides of the main body are provided with ribs along the vertical direction. The ribs surround the outer edge of the main body and extend along the vertical direction.

[0015] This utility model also provides a refrigerator, including the refrigerator self-locking structure as described above, as well as a refrigerator door and a refrigerator body, wherein the refrigerator door and the refrigerator body are rotatably connected.

[0016] Compared to existing technologies, this invention features a rotatable stop unit and a self-locking pin connected to the refrigerator door. As the refrigerator door rotates, the self-locking pin rotates with the refrigerator door and abuts against the stop unit. The stop unit can flexibly rotate and switch between a first position and a second position in response to the pushing force of the self-locking pin. During the closing process of the refrigerator door, it avoids the refrigerator door and engages with the self-locking pin after the refrigerator door is closed, thus locking the refrigerator door. Attached Figure Description

[0017] Figure 1 A top view of one embodiment of the refrigerator provided by this utility model in the closed state;

[0018] Figure 2 for Figure 1 A partial enlarged view of point A in the image shows the stop unit located at the second position.

[0019] Figure 3 A perspective view of one embodiment of the refrigerator provided by this utility model in the open state;

[0020] Figure 4 for Figure 3 A partial enlarged view of point B in the image shows that the stop unit is located in the second position.

[0021] Figure 5 This is a schematic diagram of one embodiment of the refrigerator self-locking structure provided by this utility model.

[0022] The symbols in the diagram represent the following meanings:

[0023] 100. Refrigerator self-locking structure; 10. Locking component; 11. Stop unit; 111. Stop part; 1111. First abutting surface; 1112. Second abutting surface; 1113. Main body; 1114. Rotating part; 1115. Abutting part; 1116. Rib; 112. Elastic element; 12. Mounting base; 121. Abutting block; 122. Protruding post; 123. Mounting groove; 1231. Opening; 124. Base; 125. Cover; 126. Buckle; 20. Self-locking post; 200. Refrigerator; 201. Refrigerator door; 202. Refrigerator cabinet. Detailed Implementation

[0024] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0025] It should be noted that when a mechanism is referred to as being "fixed to" or "set on" another mechanism, it can be directly on the other mechanism or there may be an intervening mechanism. When a mechanism is considered to be "connected to" another mechanism, it can be directly connected to the other mechanism or there may be an intervening mechanism. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0029] Please see Figures 1-5 This utility model provides a refrigerator self-locking structure 100, which uses a stop unit 11 to stop and limit the self-locking post 20 installed on the refrigerator door 201 to achieve the self-locking effect, and also has the function of automatic door closing.

[0030] The refrigerator self-locking structure 100 includes a self-locking pin 20 and a locking component 10. The self-locking pin 20 is connected to the refrigerator door 201, and the locking component 10 is connected to the refrigerator body 202. The locking component 10 includes a stop unit 11, which can be moved between a first position and a second position by rotation. As the refrigerator door 201 is opened or closed, the self-locking pin 20 forms a movement path, the second position is located in the movement path, and the stop unit 11 is configured to move from the second position to the first position in response to the abutment of the self-locking pin 20, and move back to the second position without the action of external force. Thus, as the refrigerator door 201 closes, the self-locking pin 20 moves along its movement path toward the refrigerator body 202 as the refrigerator door 201 rotates, and comes into contact with the stop unit 11. The stop unit 11 is in the second position in its natural state. After coming into contact with the self-locking pin 20, it moves from the second position to the first position in response to the driving force of the self-locking pin 20. When the stop unit 11 is in the first position, it leaves the movement path and does not interfere with the movement of the self-locking pin 20. As the refrigerator door 201 moves against the wall, the self-locking pin 20 moves into place, and the stop unit 11 returns to the second position and stops and limits the self-locking pin 20, thereby locking the refrigerator door 201 from opening.

[0031] Specifically, the locking assembly 10 also includes a mounting base 12, and the stop unit 11 includes a stop member 111 and an elastic member 112. One end of the elastic member 112 is connected to the mounting base 12, and the other end is connected to the stop member 111, driving the stop member 111 to rotate from a first position to a second position. Thus, the mounting base 12 accommodates the stop unit 11, facilitating its installation. Since the stop member 111 is connected to the mounting base 12 and remains in a fixed position, the end of the elastic member 112 connected to the stop member 111 remains stationary. As the stop unit 11 returns to the first position, the elastic member 112 is compressed and accumulates elastic potential energy. When the self-locking pin 20 moves into place, the elastic member 112 releases its elastic potential energy, thereby pushing the stop unit 11 from the first position back to the second position, thus completing the locking of the self-locking pin 20.

[0032] Understandably, the locking component 10 can also be directly installed on the refrigerator body 202, and the elastic element 112 can also be directly connected to the fixed structure formed on the refrigerator body 202, and is not limited to the embodiment with mounting base 12 described above.

[0033] Furthermore, the mounting base 12 is provided with an abutment block 121 and a protrusion 122. The elastic element 112 is a torsion spring, which is wound around the protrusion 122, with one end connected to the abutment block 121 and the other end connected to the stop element 111. In this way, the torsion spring can push the stop unit 11 to rotate, and its elastic path is more compatible with the rotation path of the stop unit 11. The protrusion 122 facilitates the limiting and fixing of the torsion spring and allows the torsion spring to rotate.

[0034] Specifically, in this embodiment, the cross-section of the protrusion 122 is set as a cross-shaped structure, so the contact between the protrusion 122 and the torsion spring is a line contact. In this way, the structural strength of the protrusion 122 is improved, the material cost is reduced, and the parts are made lighter.

[0035] The stop member 111 includes a first abutting surface 1111, which faces away from the refrigerator body 202 and extends obliquely in a direction close to the refrigerator body 202. Thus, when the self-locking pin 20 abuts against the first abutting surface 1111, it will move towards the refrigerator body 202 along the guiding direction of the first abutting surface 1111. Simultaneously, the obliquely arranged first abutting surface 1111 makes it easier for the stop member 111 to avoid obstacles, thereby making the avoidance rotation of the stop member 111 from the second position to the first position smoother.

[0036] The stop member 111 includes a second abutment surface 1112, which faces the refrigerator body 202 and extends obliquely in a direction close to the refrigerator body 202. Thus, when the self-locking pin 20 is positioned close to the refrigerator body 202 along with the wall of the refrigerator door, the second abutment surface 1112 provides a more stable self-locking effect on the self-locking pin 20. Furthermore, if the user does not close the door forcefully enough, and the refrigerator door is not closed completely (closed to the position against the refrigerator body 202), but only exceeds the connection point (limit point) of the first abutment surface 1111 and the second abutment surface 1112 of the stop member 111, the force of the stop member 111 being pushed back to the second position by the elastic member 112 allows the second abutment surface 1112 to push the self-locking pin 20 towards the refrigerator body 202 to close the door. If the locking pin does not cross the limit point, the first contact surface 1111 can push the self-locking pin 20 to open the refrigerator 200 door, thereby prompting the user that the refrigerator 200 has not been closed.

[0037] The mounting base 12 has a mounting groove 123, and a portion of the stop unit 11 is disposed in the mounting groove 123. An opening 1231 is provided on the groove wall of the mounting groove 123. When the stop unit 11 is in the second position, a portion of the stop unit 11 extends out of the mounting groove 123 through the opening 1231. Each component is installed in the mounting groove 123, and the groove wall of the mounting groove 123 can protect each component from the influence of the external environment, thereby extending the service life of the refrigerator self-locking structure 100.

[0038] The mounting base 12 includes a base body 124 and a cover 125. The base body 124 has a mounting groove 123, and the cover 125 covers the opening of the mounting groove 123. Multiple latches 126 protrude from the groove wall of the mounting groove 123, engaging with the cover 125. In this way, the cover 125 further seals the space within the mounting groove 123, reducing the impact of the external environment. The latches 126 facilitate the assembly and disassembly of the cover 125, thereby facilitating maintenance and repair of internal components.

[0039] Furthermore, the stop 111 includes a main body 1113, a rotating part 1114, and an abutting part 1115. The main body 1113 is connected to the rotating part 1114, the rotating part 1114 is rotatably connected to the mounting base 12, and the abutting part 1115 is connected to the end of the main body 1113 away from the rotating part 1114, and the abutting part 1115 is used to abut against the self-locking pin 20. The rotating part 1114 has a rotating hole, and a rotating shaft protrudes from the bottom wall of the mounting groove 123, extending into the rotating hole, thereby rotatably connecting with the rotating part 1114. The main body 1113 is used to bear most of the stress load, improving the structural strength of the stop 111, while the abutting part 1115 is used to abut against and push against the self-locking pin 20.

[0040] Specifically, the side of the abutment portion 1115 away from the refrigerator body 202 is designated as the first abutment surface 1111, and the side facing the refrigerator body 202 is designated as the second abutment surface 1112. The first abutment surface 1111 and the second abutment surface 1112 intersect at the end away from the mounting base 12, which is the aforementioned limit point. The abutment portion 1115 is designed to approximate a triangular shape. Preferably, in this embodiment, the first abutment surface 1111 is a plane, and the second abutment surface 1112 is an arc surface. The arc-shaped second abutment surface 1112 provides a better locking effect.

[0041] Along the vertical direction, both the upper and lower sides of the main body 1113 are provided with raised ribs 1116. The raised ribs 1116 surround the outer edge of the main body 1113 and extend along the vertical direction. In this way, the structural strength of the main body 1113 is higher, the raised ribs 1116 enhance the bending and torsional resistance of the main body 1113, and there is no need to thicken the main body 1113, thus achieving lightweighting of the parts.

[0042] This utility model also provides a refrigerator 200, including the refrigerator self-locking structure 100 as described above, as well as a refrigerator door 201 and a refrigerator body 202, which are rotatably connected.

[0043] Compared to existing technologies, this utility model features a rotatable stop unit 11 and a self-locking pin 20 connected to the refrigerator door 201. As the refrigerator door 201 rotates, the self-locking pin 20 rotates with the refrigerator door 201 and abuts against the stop unit 11. The stop unit 11 can flexibly rotate and switch between a first position and a second position in response to the pushing force of the self-locking pin 20. During the closing process of the refrigerator door 201, it avoids the refrigerator door 201. After the refrigerator door 201 is closed, it engages the self-locking pin 20 to lock the refrigerator door 201.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A refrigerator self-locking structure, characterized in that, include: Self-locking pin (20) is connected to the refrigerator door (201); A locking assembly (10) is connected to the refrigerator body (202). The locking assembly (10) includes a stop unit (11) that can be rotated between a first position and a second position. As the refrigerator door (201) is opened or closed, the self-locking pin (20) forms a movement path, the second position being located in the movement path, and the stop unit (11) is configured to move from the second position to the first position in response to the abutment of the self-locking pin (20), and move back to the second position when no external force is applied.

2. The refrigerator self-locking structure according to claim 1, characterized in that, The locking assembly (10) further includes a mounting base (12), and the stop unit (11) includes a stop member (111) and an elastic member (112). One end of the elastic member (112) is connected to the mounting base (12), and the other end is connected to the stop member (111), driving the stop member (111) to rotate from the first position to the second position.

3. The refrigerator self-locking structure according to claim 2, characterized in that, The mounting base (12) is provided with an abutment block (121) and a protrusion (122). The elastic element (112) is configured as a torsion spring. The elastic element (112) is wrapped around the protrusion (122), and one end is connected to the abutment block (121), and the other end is connected to the stop (111).

4. The refrigerator self-locking structure according to claim 2, characterized in that, The stop member (111) includes a first abutting surface (1111), which faces away from the refrigerator body (202) and extends obliquely in a direction close to the refrigerator body (202).

5. The refrigerator self-locking structure according to claim 2, characterized in that, The stop member (111) includes a second abutment surface (1112) facing the refrigerator body (202) and extending obliquely in a direction close to the refrigerator body (202).

6. The refrigerator self-locking structure according to claim 2, characterized in that, The mounting base (12) has a mounting groove (123), and a portion of the stop unit (11) is disposed in the mounting groove (123). An opening (1231) is provided on the groove wall of the mounting groove (123). When the stop unit (11) is in the second position, a portion of the stop unit (11) extends out of the mounting groove (123) through the opening (1231).

7. The refrigerator self-locking structure according to claim 6, characterized in that, The mounting base (12) includes a base body (124) and a cover body (125). The base body (124) has a mounting groove (123). The cover body (125) covers the opening of the mounting groove (123). The mounting groove (123) has multiple buckles (126) protruding from its groove wall. The buckles (126) engage with the cover body (125).

8. The refrigerator self-locking structure according to any one of claims 2-7, characterized in that, The stop member (111) includes a main body (1113), a rotating part (1114), and an abutting part (1115). The main body (1113) is connected to the rotating part (1114), the rotating part (1114) is rotatably connected to the mounting base (12), and the abutting part (1115) is connected to the end of the main body (1113) away from the rotating part (1114), and the abutting part (1115) is used to abut against the self-locking pin (20).

9. The refrigerator self-locking structure according to claim 8, characterized in that, Along the vertical direction, both the upper and lower sides of the main body (1113) are provided with ribs (1116), which surround the outer edge of the main body (1113) and extend along the vertical direction.

10. A refrigerator (200), characterized in that, Includes a refrigerator self-locking structure as described in any one of claims 1-9, and a refrigerator door (201) and a refrigerator body (202), wherein the refrigerator door (201) and the refrigerator body (202) are rotatably connected.