Door panel hinge structure suitable for wall-hung cabinet

Abstract

This utility model relates to a door panel hinge structure suitable for wall-mounted cabinets. It includes a fixed seat on the cabinet side panel and a movable seat on the side of the door panel. The fixed seat has a connecting arm. The hinge structure also includes a rotating assembly, which comprises a first rotating module and a second rotating module, each having a reference end and a movable end. The first and second rotating modules are rotatably connected to the connecting arm from the reference end and rotatably connected to the movable seat from the movable end, respectively. Based on the connection layout of the first and second rotating modules with the fixed and movable seats, this utility model ensures that the side of the door panel remains inside the outer wall of the cabinet side panel during opening and closing, effectively preventing the door panel from colliding with the wall surface against which the cabinet side panel is attached, thus meeting the opening and closing requirements of wall-mounted cabinet doors.

Description

Technical Field

[0001] This utility model belongs to the field of hinges, specifically relating to a door panel hinge structure suitable for wall-mounted cabinets. Background Technology

[0002] A hinge is a mechanical device used to connect two solids and allow them to rotate relative to each other.

[0003] Currently, there are various types of hinges on the market, widely used in furniture and electrical appliances. A typical hinge generally includes a base mounted on the side panel of the cabinet, a connecting arm mounted on the door panel and rotatably connected to the base, and a built-in spring (or damper) for achieving soft closing.

[0004] However, in actual use, when the door panel rotates around the existing hinge to open or close relative to the side panel, the edge of the door panel and the hinge connection end tends to extend beyond the outer wall of the side panel due to the arc-shaped movement trajectory of the door panel. As a result, when the cabinet is placed against the wall from the side panel, it is easy for the door panel to collide with the wall. Therefore, it is urgent to design a door panel hinge structure suitable for cabinets placed against the wall. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an improved door panel hinge structure suitable for wall-mounted cabinets.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A door panel hinge structure suitable for wall-mounted cabinets includes a fixed seat on the side panel of the cabinet and a movable seat on the side of the door panel. The fixed seat is provided with a connecting arm. The hinge structure also includes a rotating assembly, which includes a first rotating module and a second rotating module, each having a reference end and a movable end. The first rotating module and the second rotating module are rotatably connected to the connecting arm from the reference end and rotatably connected to the movable seat from the movable end, respectively. As the movable seat opens relative to the fixed seat, the first rotating module and the second rotating module rotate synchronously around the center line of their respective reference ends, and drive the door panel to flip from the movable end and synchronously shift towards the inward direction of the side panel to keep the side of the door panel located inside the outer wall of the side panel.

[0008] According to a specific embodiment and preferred aspect of this utility model, as the movable seat opens or closes relative to the fixed seat, the first rotating module and the second rotating module rotate in opposite directions around the center line of their corresponding reference ends. Here, based on the bidirectional rotation of the first and second rotating modules driving the movable seat to open or close relative to the fixed seat, the small radius of rotation formed by the two modules facilitates the miniaturization of the hinge structure.

[0009] Preferably, the fixed seat and the movable seat are respectively embedded in the inner walls of the side panel and the door panel, and the connecting arm is located on the inner side of the side panel and has a connecting part extending from the fixed seat to the movable seat. Here, a concealed hinge structure design is achieved, improving the aesthetics of the appearance.

[0010] According to another specific embodiment and preferred aspect of this utility model, the movable seat is recessed from the inner wall outward to form a connecting groove communicating with the side of the door panel. A portion of the connecting part extends into the connecting groove. The first rotating module and the second rotating module are sequentially and staggeredly rotatably connected to the inner wall of the connecting groove from the movable end outwards. Furthermore, the first rotating module and the second rotating module are rotatably connected from the reference end to the portion of the connecting part located outside the connecting groove and the portion located inside the connecting groove, respectively. This results in a simple and compact structure.

[0011] Preferably, the first rotating module is V-shaped, with the opening of the V facing outwards from the side plate. This prevents self-locking during rotation and improves the reliability of the hinge structure.

[0012] Specifically, when the door panel is closed, one side of the V-shape is parallel to the part of the connecting part that extends into the connecting groove; when the door panel is open, the other side of the V-shape is parallel to the part of the connecting part that extends into the connecting groove.

[0013] Preferably, a protrusion is formed on the movable end of the second rotating module, and a torsion spring is also provided on the fixed base. One end of the torsion spring is fixed to the fixed base, and the other end abuts against the protrusion and drives the second rotating module to have a tendency to rotate around the center line of the reference end to assist the door panel in closing. Here, when closing, the elastic force formed by the torsion spring assists the door panel in closing.

[0014] Specifically, there are at least two protrusions that are spaced apart along the centerline of the active end.

[0015] According to another specific embodiment and preferred aspect of this utility model, a buffer is further provided in the connecting groove, wherein the contact end of the buffer forms an inclined surface, and the end of the connecting part forms an arc-shaped guide surface. As the movable seat closes relative to the fixed seat, the buffer moves from the contact end around the arc-shaped guide surface and gradually contacts the connecting part, forming a buffer damping. This prevents excessive force from causing the door panel to hit the side panel, while also improving the door panel closing feel.

[0016] Furthermore, as the movable seat opens relative to the fixed seat, the outer wall of the door panel is located inside the outer wall of the side panel. Here, when the door panel is fully opened, it can be separated from the wall, further preventing the door panel from colliding with the wall.

[0017] Due to the implementation of the above technical solution, this utility model has the following advantages compared with the prior art:

[0018] In existing technologies, when a door panel rotates around a conventional hinge to open or close relative to a side panel, the edge of the door panel connecting to the hinge tends to extend beyond the outer wall of the side panel due to the curved trajectory of the door panel. This can easily cause the door panel to collide with the wall when the cabinet is placed against the wall from the side panel. This application addresses the shortcomings and defects of existing technologies by designing a hinge structure for door panels suitable for wall-mounted cabinets. With this hinge structure, the connecting arm, which is rotatably connected to the fixed seat from the reference end by the first and second rotating modules, and rotatably connected to the movable seat from the movable end, allows the first and second rotating modules to rotate synchronously around the corresponding reference end centerline as the movable seat opens or closes relative to the fixed seat when the door panel opens or closes relative to the cabinet side panel. The combined motion of the two movable ends keeps the side of the door panel inside the outer wall of the side panel, preventing the side of the door panel from colliding with the wall surface against which the side panel is attached during the opening and closing motion. Therefore, compared with the prior art, the present invention, based on the connection layout of the first and second rotating modules with the fixed seat and the movable seat, enables the door panel to keep its side inside the outer wall of the cabinet side panel during the opening and closing movement, effectively preventing the door panel from colliding with the wall surface against which the cabinet side panel is attached, thereby meeting the opening and closing requirements of the cabinet door panel against the wall. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram (closed state) of the door panel hinge structure applicable to wall-mounted cabinets according to this utility model;

[0020] Figure 2 This is a front view schematic diagram (closed state) of the door panel hinge structure applicable to wall-mounted cabinets according to this utility model;

[0021] Figure 3 This is a front view schematic diagram (open state) of the door panel hinge structure applicable to wall-mounted cabinets according to this utility model;

[0022] Figure 4 for Figure 1 A magnified, exploded view of the hinge structure in the diagram.

[0023] Figure 5 for Figure 2 A half-section diagram;

[0024] Figure 6 for Figure 3 A half-section diagram;

[0025] Wherein: B1, side panel; B2, door panel;

[0026] 1. Fixed seat; 10. Connecting arm; b. Connecting part; 2. Movable seat; c. Connecting groove; q. Buffer; h. Torsion spring; 3. Rotating assembly; 31. First rotating module; 32. Second rotating module; 320. Protrusion; d1. Reference end; d2. Movable end. Detailed Implementation

[0027] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to provide a full understanding of the present utility model. However, the present utility model 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 the present utility model. Therefore, the present utility model is not limited to the specific embodiments disclosed below.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this utility model, unless otherwise explicitly 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 is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply 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 that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] like Figures 1 to 6 As shown, the door panel hinge structure applicable to wall-mounted cabinets in this embodiment includes a fixed seat 1 set on the side panel B1 of the cabinet, a movable seat 2 set on the side of the door panel B2, and a rotating assembly 3.

[0034] Specifically, the fixed seat 1 and the movable seat 2 are respectively embedded in the inner walls of the side panel B1 and the door panel B2 from the inside out. The fixed seat 1 is provided with a connecting arm 10, which is located on the inner side of the side panel B1 and has a connecting part b extending from the fixed seat 1 to the movable seat 2. Here, a hidden hinge structure design is achieved, improving the aesthetics of the appearance.

[0035] In this example, the rotating assembly 3 includes a first rotating module 31 and a second rotating module 32, which are respectively located at a reference end d1 and a movable end d2. The first rotating module 31 and the second rotating module 32 are pivotally connected to the connecting arm 10 from the reference end d1 and pivotally connected to the movable seat 2 from the movable end d2. As the movable seat 2 opens relative to the fixed seat 1, the first rotating module 31 and the second rotating module 32 rotate synchronously around the center line of the corresponding reference end, and drive the door panel B2 to flip from the movable end d2 and synchronously shift towards the outer inner side of the side panel B1 so that the side of the door panel B2 remains inside the outer wall of the side panel B1.

[0036] For ease of implementation, as the movable seat 2 opens or closes relative to the fixed seat 1, the first rotating module 31 and the second rotating module 32 rotate in opposite directions around the center line of their corresponding reference ends d1. Here, based on the bidirectional rotation of the first and second rotating modules driving the movable seat to open or close relative to the fixed seat, the small rotation radius formed by the two modules is beneficial for miniaturizing the hinge structure.

[0037] In some specific embodiments, the movable seat 1 is recessed from the inner wall outward to form a connecting groove c communicating with the side of the door panel. A portion of the connecting part b extends into the connecting groove c. The first rotating module 31 and the second rotating module 32 are sequentially and staggeredly rotatably connected to the inner wall of the connecting groove c from the movable end d2 outward. Furthermore, the first rotating module 31 and the second rotating module 32 are rotatably connected from the reference end d1 to the portion of the connecting part b located outside and inside the connecting groove c, respectively. That is, in this embodiment, as the door panel opens, the first rotating module 31 rotates counterclockwise around the reference end d1, and the second rotating module 32 rotates clockwise around the reference end d1. The combined motion of the two drives the door panel to flip while simultaneously shifting inward towards the side panel to avoid the wall. This design is simple and compact.

[0038] The first rotating module 31 is V-shaped, with the opening of the V facing outwards from the side panel B1. This prevents self-locking during rotation and improves the reliability of the hinge structure. When the door panel B2 is closed, one side of the V-shape is parallel to the portion of the connecting part b that extends into the connecting groove c; when the door panel B2 is open, the other side of the V-shape is parallel to the portion of the connecting part b that extends into the connecting groove c.

[0039] A protrusion 320 is formed on the movable end d2 of the second rotating module 32. A torsion spring h is also provided on the fixed base 1. One end of the torsion spring h is fixed to the fixed base 1, and the other end abuts against the protrusion 320 and drives the second rotating module 32 to have a tendency to rotate around the center line of the reference end d1 to assist the door panel B2 in closing. Here, when closing, the elastic force formed by the torsion spring assists the door panel in closing.

[0040] There are at least two protrusions 320, which are spaced apart along the center line of the active end d2.

[0041] To further facilitate implementation, a buffer q is also provided in the connecting groove c. The contact end of the buffer q forms an inclined surface, and the end of the connecting part b forms an arc-shaped guide surface. As the movable seat 2 closes relative to the fixed seat 1, the buffer q moves from the contact end around the arc-shaped guide surface and gradually contacts the connecting part b, forming a buffer damping effect. This prevents excessive force from causing the door panel to hit the side panel, while also improving the door panel closing feel.

[0042] Furthermore, as the movable seat 2 opens relative to the fixed seat 1, the outer wall of the door panel B2 is located inside the outer wall of the side panel B1. Here, when the door panel is fully opened, it can be separated from the wall, further preventing the door panel from colliding with the wall.

[0043] In summary, with this hinge structure, the connecting arm, which is rotatably connected to the fixed seat from the reference end by the first and second rotating modules, and rotatably connected to the movable seat from the movable end, when the door panel opens or closes relative to the cabinet side panel, as the movable seat opens or closes relative to the fixed seat, the first and second rotating modules rotate synchronously around the center line of the corresponding reference end. The combined motion formed by the two movable ends drives the side of the door panel to remain inside the outer wall of the side panel, so as to prevent the side of the door panel from colliding with the wall surface that the outer wall of the side panel is in contact with during the opening and closing motion. Therefore, compared with the prior art, this utility model, based on the connection layout of the first and second rotating modules with the fixed seat and the movable seat, enables the door panel to keep its side inside the outer wall of the cabinet side panel during opening and closing, effectively preventing the door panel from colliding with the wall surface against which the cabinet side panel is attached, thereby meeting the opening and closing requirements of the cabinet door panel against the wall; thirdly, based on the bidirectional rotation of the first and second rotating modules driving the movable seat to open or close relative to the fixed seat, the small rotation radius formed by the two is conducive to the miniaturization of the hinge structure; fourthly, the concealed design of the hinge structure is achieved, improving the aesthetics of the appearance; fifthly, when the door panel is fully opened, it can be separated from the wall surface, further preventing the door panel from colliding with the wall.

[0044] The present utility model has been described in detail above, with the aim of enabling those skilled in the art to understand its contents and implement it. However, this description should not be construed as limiting the scope of protection of the present utility model. All equivalent changes or modifications made in accordance with the spirit and essence of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A door panel hinge structure suitable for a wall-mounted cabinet, comprising a fixed seat disposed on a side panel of the cabinet and a movable seat disposed on the side of the door panel, wherein the fixed seat is provided with a connecting arm, characterized in that, The hinge structure also includes a rotating assembly, which includes a first rotating module and a second rotating module, each having a reference end and a movable end. The first rotating module and the second rotating module are rotatably connected to the connecting arm from the reference end and rotatably connected to the movable seat from the movable end, respectively. As the movable seat opens relative to the fixed seat, the first rotating module and the second rotating module rotate synchronously around the center line of their respective reference ends, and drive the door panel to flip from the movable end and synchronously shift towards the inside of the side panel to keep the side of the door panel located inside the outer wall of the side panel.

2. The door panel hinge structure suitable for wall-mounted cabinets according to claim 1, characterized in that, As the movable seat opens or closes relative to the fixed seat, the first rotating module and the second rotating module rotate in opposite directions around the center line of their corresponding reference ends.

3. The door panel hinge structure suitable for wall-mounted cabinets according to claim 2, characterized in that, The fixed seat and the movable seat are respectively embedded in the inner wall of the side panel and the door panel, and the connecting arm is located on the inner side of the side panel and has a connecting part extending from the fixed seat to the movable seat.

4. The door panel hinge structure suitable for wall-mounted cabinets according to claim 3, characterized in that, The movable seat is recessed from the inner wall outward to form a connecting groove that communicates with the side of the door panel. A portion of the connecting part extends into the connecting groove. The first rotating module and the second rotating module are respectively rotatably connected to the inner wall of the connecting groove from the inside to the outside of the movable end and are staggered. The first rotating module and the second rotating module are respectively rotatably connected to the portion of the connecting part located outside the connecting groove and the portion located inside the connecting groove from the reference end.

5. The door panel hinge structure suitable for wall-mounted cabinets according to claim 4, characterized in that, The first rotating module is V-shaped, and the opening of the V-shape faces outward from the side plate.

6. The door panel hinge structure suitable for wall-mounted cabinets according to claim 5, characterized in that, When the door panel is closed, one side of the V-shape is parallel to the portion of the connecting part that extends into the connecting groove; when the door panel is open, the other side of the V-shape is parallel to the portion of the connecting part that extends into the connecting groove.

7. The door panel hinge structure suitable for wall-mounted cabinets according to claim 4, characterized in that, The second rotating module has a protrusion on its movable end, and the fixed base is also provided with a torsion spring. One end of the torsion spring is fixed to the fixed base, and the other end abuts against the protrusion and drives the second rotating module to have a tendency to rotate around the center line of the reference end to assist the door panel in closing.

8. The door panel hinge structure suitable for wall-mounted cabinets according to claim 7, characterized in that, The protrusions are at least two in number and are spaced apart along the center line of the movable end.

9. The door panel hinge structure suitable for wall-mounted cabinets according to claim 4, characterized in that, The connecting groove is also provided with a buffer, wherein the contact end of the buffer forms an inclined surface and the end of the connecting part forms an arc-shaped guide surface. As the movable seat moves in a closing motion relative to the fixed seat, the buffer moves from the contact end around the arc-shaped guide surface and gradually contacts the connecting part to form a buffer damping.

10. The door panel hinge structure for a wall-mounted cabinet according to any one of claims 1-9, characterized in that, As the movable seat opens relative to the fixed seat, the outer wall of the door panel is located inside the outer wall of the side panel.

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