Magnetic self-locking cabinet

Abstract

This invention discloses a magnetic self-locking cabinet, including a base disposed on the back of the door panel, a flip frame hinged to the base, the flip frame being a ferromagnetic component, or having a magnetic component on the flip frame; a guide structure for vertical movement of a locking rod is provided on the back of the door panel, the locking rod being drivenly connected to the flip frame, and a lock hole on the cabinet body cooperating with the locking rod, allowing the locking rod to extend into the lock hole to form a lock; it also includes a magnetic handle that can be placed on the front of the door panel corresponding to the flip frame, the magnetic handle having an external magnet; when the magnetic handle is in the corresponding position, the external magnet magnetically engages with the flip frame or the magnetic component on the flip frame to drive the flip frame to flip and disengage the locking rod from the lock hole to unlock; when the magnetic handle is removed, the locking rod extends into the lock hole to achieve self-locking. This invention uses an external magnetic handle to drive the locking mechanism inside the door through the door, and has the advantages of simple structure, concealed opening, convenient operation, and good automatic locking effect.

Description

Technical Field

[0001] This invention relates to the field of cabinet locking structure technology, specifically to a magnetic self-locking cabinet. Background Technology

[0002] Existing cabinets, especially display cabinets, storage cabinets, furniture cabinets, and equipment cabinets, typically use mechanical handles in conjunction with latches, locking bars, or lock cylinders to open and close the cabinet doors. This type of structure usually requires exposed handles or locks on the front of the door panel, which not only affects the overall aesthetics and simplicity of the cabinet door, but is also inconvenient to use in some application scenarios that require concealed opening.

[0003] Furthermore, while some existing cabinet door structures can assist in opening via magnetic attraction, most only serve the purpose of adsorption and positioning or assisting in pulling open, making it difficult to simultaneously meet requirements such as reliable locking, convenient unlocking, and automatic reset locking. Especially in applications that aim to eliminate conventional exposed handles, improve the integrity of the cabinet door surface, and ensure security, existing technologies still suffer from shortcomings such as complex structures, inconvenient opening, unreliable locking, or inability to automatically reset locking.

[0004] Therefore, it is necessary to provide a magnetic self-locking cabinet that is simple in structure, easy to operate, has concealed unlocking, and can automatically lock, in order to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a magnetic self-locking cabinet to solve the problems of exposed handles affecting appearance, insufficiently concealed unlocking methods, unreliable locking and unlocking linkage, and difficulty in achieving automatic locking in existing cabinet opening structures.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a magnetic self-locking cabinet, comprising a base disposed on the back of a door panel, a flip frame hingedly mounted on the base, the flip frame being a ferromagnetic component, or a magnetic component disposed on the flip frame; a guide structure for vertical movement of a locking rod is disposed on the back of the door panel, the locking rod being convexly connected to the flip frame, and a lock hole cooperating with the locking rod being disposed on the cabinet body, the locking rod being able to extend into the lock hole to form a lock; It also includes a magnetic handle that can be placed on the front of the door panel corresponding to the flip frame. The magnetic handle is provided with an external magnet. When the magnetic handle is placed in the corresponding position, the external magnet magnetically engages with the flip frame or the magnetic component on the flip frame to drive the flip frame to flip and drive the locking rod to disengage from the lock hole to unlock. When the magnetic handle is removed, the locking rod extends into the lock hole under the action of gravity and / or restoring force to achieve self-locking.

[0007] Furthermore, the locking rod is directly hinged to the tilting frame.

[0008] Furthermore, an internal magnet is embedded in the flipping frame.

[0009] Furthermore, the flipping frame is provided with a first connecting arm, which is hinged to the base via a first hinge pin.

[0010] Furthermore, the tilting frame is provided with a second connecting arm, which is hinged to one end of the pull rod via a second hinge shaft, and the other end of the pull rod is hinged to the locking rod via a third hinge shaft, so as to convert the tilting motion of the tilting frame into the vertical motion of the locking rod.

[0011] Furthermore, the base is provided with a guide hole, and the locking rod slides vertically within the guide hole.

[0012] Furthermore, a guide seat is provided on the back of the door panel, and the locking rod is slidably fitted inside the guide seat. A lock hole is provided on the cabinet body at the position corresponding to the guide seat.

[0013] Furthermore, the first connecting arm is located at the bottom of the tilting frame.

[0014] Furthermore, the second connecting arm is located at the rear of the tilting frame.

[0015] Furthermore, the magnetic handle is a detachable external handle that is independent of the door panel.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This invention improves the overall appearance and concealment of cabinet doors by setting a flip frame, locking rod and its guide structure on the back of the door panel and driving the door through a magnetic handle on the front of the door panel, without the need for a traditional exposed mechanical lock cylinder.

[0017] 2. This invention utilizes the magnetic attraction between the external magnet on the magnetic handle and the magnetic component on the flip frame to achieve non-contact driving of the locking mechanism inside the cabinet door, making the opening method simple and providing a good user experience.

[0018] 3. In this invention, the locking rod can automatically return to the locked position under the action of gravity and / or restoring force, and can automatically enter the lock hole after the cabinet door is closed, thus having a self-locking function and a reliable structure. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the magnetic self-locking cabinet of the present invention; Figure 2 This is a cross-sectional view of the present invention in the locked state; Figure 3 This is a cross-sectional view of the present invention in the unlocked state; Figure 4 This is a three-dimensional structural diagram of the door panel back locking mechanism of the present invention; Figure 5 This is an exploded structural diagram of the locking mechanism on the back of the door panel of the present invention.

[0021] Explanation of reference numerals in the attached drawings: 1. Base; 11. Guide hole; 2. Flip frame; 21. First connecting arm; 22. First hinge pin; 23. Second connecting arm; 24. Second hinge pin; 25. Pull rod; 26. Third hinge pin; 3. Locking rod; 4. Magnetic handle; 5. Outer magnet; 6. Lock hole; 7. Door panel; 71. Guide seat; 8. Cabinet; 9. Inner magnet. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. Example

[0023] like Figures 1 to 5 As shown, a magnetic self-locking cabinet includes a cabinet body 8 and a door panel 7 hinged to the cabinet body 8. A base 1 is provided on the back of the door panel 7, and the base 1 can be installed on the back of the door panel 7 by screws, rivets, welding, adhesive or other conventional fixing methods.

[0024] A flip frame 2 is hinged to the base 1. Preferably, the flip frame 2 can be made of ferromagnetic material so that it can be attracted by the external magnet 5 on the magnetic handle 4; in other embodiments, the body of the flip frame 2 may not be entirely made of ferromagnetic material, but only magnetic components are provided on the flip frame 2, such as an internal magnet 9 embedded in the flip frame 2, to improve the magnetic attraction response and the sensitivity of the action.

[0025] In this embodiment, the tilting frame 2 is provided with a first connecting arm 21, which is located at the bottom of the tilting frame 2. The first connecting arm 21 is hinged to the base 1 via a first hinge pin 22, enabling the tilting frame 2 to tilt relative to the base 1. The tilting frame 2 is also provided with a second connecting arm 23, which is located at the rear of the tilting frame 2. The second connecting arm 23 is hinged to one end of the pull rod 25 via a second hinge pin 24, and the other end of the pull rod 25 is hinged to the locking rod 3 via a third hinge pin 26.

[0026] The back of the door panel 7 is provided with a guide structure for the vertical movement of the locking rod 3. The guide structure may include a guide hole 11 on the base 1, within which the locking rod 3 slides vertically; it may also include a guide seat 71 on the back of the door panel 7, within which the lower part of the locking rod 3 slides further. By guiding the locking rod 3 at both the top and bottom through the guide hole 11 and the guide seat 71, the locking rod 3 can move smoothly up and down in a substantially vertical direction, reducing sway and improving the stability of locking and unlocking.

[0027] A lock hole 6 is provided on the cabinet body 8 at the position corresponding to the guide seat 71. When the door panel 7 is closed, the lower end of the locking rod 3 can be aligned with and inserted into the lock hole 6 on the cabinet body 8, thereby forming a locking connection between the door panel 7 and the cabinet body 8.

[0028] In this embodiment, a magnetic handle 4 is also provided. The magnetic handle 4 is a detachable external handle that is independent of the door panel 7, and an external magnet 5 is provided on the magnetic handle 4. In use, the magnetic handle 4 can be held by the user alone and selectively placed near the front of the door panel 7 at the position corresponding to the flip frame 2. When the magnetic handle 4 is not placed at the corresponding position, the flip frame 2 is not driven by the external magnet 5, and the locking rod 3 remains in the locked position or tends to be locked under the action of gravity and / or reset force; when the magnetic handle 4 is placed at the corresponding position on the front of the door panel 7, the external magnet 5 exerts a magnetic attraction on the flip frame 2 or the internal magnet 9 through the door panel 7, thereby driving the flip frame 2 to flip.

[0029] Working principle The working process of this invention can be divided into a locking state, an unlocking action state, and a reset self-locking state, as detailed below: 1. Locked state Under normal conditions, the magnetic handle 4 is not located on the front of the door panel 7 corresponding to the flip frame 2, and the flip frame 2 is not driven by external magnetic force. At this time, the locking rod 3 moves downward under its own weight, or, if a reset element is provided, moves in the locking direction under the restoring force of the reset element. Since the locking rod 3 is limited and guided by the guide hole 11 on the base 1 and the guide seat 71, its movement trajectory is mainly vertical up and down movement. Therefore, the lower end of the locking rod 3 can stably extend into the lock hole 6 on the cabinet 8, thereby locking the door panel 7 in the closed position.

[0030] In this embodiment, since the flipping frame 2 is connected to the locking rod 3 via the second connecting arm 23 and the pull rod 25, the flipping frame 2 maintains its initial position when not subjected to magnetic force, the pull rod 25 also maintains its initial posture, and the locking rod 3 is in the locked position after being lowered. At this time, the cabinet door cannot be directly opened, thus achieving concealed locking.

[0031] 2. Unlock action state When the user needs to open the cabinet door, bring the magnetic handle 4 close to and place it on the front of the door panel 7, corresponding to the position of the flip frame 2. Since the magnetic handle 4 is equipped with an outer magnet 5, and the flip frame 2 is a ferromagnetic component, or the flip frame 2 is equipped with an inner magnet 9, the outer magnet 5 will attract the flip frame 2 or the inner magnet 9.

[0032] Under the influence of magnetic force, the flip frame 2 flips around the first hinge axis 22. Since the second connecting arm 23 is located at the rear of the flip frame 2, when the flip frame 2 flips, the second connecting arm 23 swings accordingly, and pulls the pull rod 25 through the second hinge axis 24. The other end of the pull rod 25 is connected to the locking rod 3 through the third hinge axis 26, so the swing of the pull rod 25 is further converted into the vertical displacement of the locking rod 3. Specifically, after the flip frame 2 flips, the pull rod 25 pulls the locking rod 3 upward, causing the locking rod 3 to slide upward along the guide hole 11 and the guide seat 71, thereby disengaging the lower end of the locking rod 3 from the lock hole 6 on the cabinet 8.

[0033] When the locking rod 3 is fully or sufficiently disengaged from the lock hole 6, the locking relationship between the door panel 7 and the cabinet body 8 is released, and the door panel 7 can be pulled open, thereby unlocking and opening the cabinet door.

[0034] 3. Reset self-locking state When the user removes the magnetic handle 4, the magnetic attraction of the outer magnet 5 to the flip frame 2 or the inner magnet 9 disappears, and the flip frame 2 loses its external driving force. At this time, the locking rod 3 falls downward under its own weight, or moves downward under the action of the restoring force, causing the pull rod 25 to swing in the opposite direction, and further prompting the flip frame 2 to return to its original position.

[0035] During the cabinet door reclosing process, once the door panel 7 approaches the cabinet body 8 and reaches the closed position, the locking rod 3, under the action of gravity and / or restoring force, realigns and extends into the lock hole 6, thereby restoring the locked state. Since this locking action is automatically completed after the magnetic handle 4 is removed, this invention has a self-locking function, eliminating the need for additional manual locking operations.

[0036] In summary, this invention utilizes the external magnet 5 on the magnetic handle 4 to pass through the door panel 7 and drive the flip frame 2 on the back of the door panel 7 in a non-contact manner. The flip frame 2 then drives the locking rod 3 to move vertically through direct or indirect transmission, completing a cycle of "locking—unlocking—resetting—relocking". Throughout the process, the user does not need to install a traditional mechanical lock on the front of the door panel 7, nor does he / she need to insert a key from the edge of the door panel or move a conventional lock tongue, thus achieving concealed opening and automatic locking of the cabinet door. Example 2

[0037] The difference between this embodiment and Embodiment 1 is that the locking rod 3 and the flipping frame 2 are connected by a direct hinge, instead of being indirectly transmitted through the pull rod 25.

[0038] Specifically, the upper part of the locking rod 3 can be directly hinged to the flip frame 2, while the rest of the locking rod 3 is still vertically guided by the guide structure on the back of the door panel 7. With this configuration, when the magnetic handle 4 approaches the corresponding position on the front of the door panel 7, the outer magnet 5 attracts the flip frame 2, which flips around the first hinge axis 22 and directly drives the locking rod 3 upward through the direct hinge relationship with it, causing the locking rod 3 to disengage from the lock hole 6, thereby unlocking the door.

[0039] After the magnetic handle 4 is removed, the flipping frame 2 loses its magnetic driving force, and the locking rod 3 descends under the action of gravity and / or reset force, and re-extends into the lock hole 6 to achieve automatic locking.

[0040] Compared to the structure that achieves indirect transmission via tie rod 25, the structure with direct hinge has fewer structural components and is easier to assemble; while the structure that achieves indirect transmission via tie rod 25 is more conducive to adjusting the transmission relationship according to the installation space. Both fall within the protection scope of this invention.

[0041] It should be noted that: 1. The “magnetic component” can be an inner magnet 9 or other components that can form a magnetic attraction with the outer magnet 5.

[0042] 2. The "reset force" can be provided by a reset spring, elastic sheet, elastic element or other conventional return structure; when no special reset structure is provided, reset and self-locking can also be achieved mainly by the gravity of the locking rod 3 itself.

[0043] 3. The magnetic handle 4 is preferably a detachable external handle, which can be separated from the door panel 7 when not in use, so as to further improve the integrity and concealment of the cabinet door surface.

[0044] 4. The guide structure may include only the guide hole 11 on the base 1, or it may include both the guide hole 11 and the guide seat 71, to adapt to the usage requirements of different cabinet door sizes and lock rod lengths.

[0045] 5. This invention is not limited to the specific shape, proportion, and installation position shown in the figure. Any invention that adopts the technical concept of this invention should fall within the protection scope of this invention.

Claims

1. A magnetic self-locking cabinet, characterized in that: Includes a base (1) set on the back of the door panel (7), on which a flip frame (2) is hinged, the flip frame (2) being a ferromagnetic component or having a magnetic component; the back of the door panel (7) is provided with a guide structure for the vertical movement of the locking rod (3), the locking rod (3) being connected to the flip frame (2) in a transmission manner, and the cabinet (8) being provided with a lock hole (6) that cooperates with the locking rod (3), the locking rod (3) being able to extend into the lock hole (6) to form a lock; It also includes a magnetic handle (4) that can be placed on the front of the door panel (7) in a position corresponding to the flip frame (2). The magnetic handle (4) is provided with an external magnet (5). When the magnetic handle (4) is placed in the corresponding position, the external magnet (5) magnetically engages with the flip frame (2) or the magnetic component on the flip frame (2) to drive the flip frame (2) to flip and drive the locking rod (3) to disengage from the lock hole (6) to unlock. When the magnetic handle (4) is removed, the locking rod (3) extends into the lock hole (6) under the action of gravity and / or reset force to achieve self-locking.

2. The magnetic self-locking cabinet according to claim 1, characterized in that: The locking rod (3) is directly hinged to the flipping frame (2).

3. The magnetic self-locking cabinet according to claim 1, characterized in that: An internal magnet (9) is embedded in the flipping frame (2).

4. The magnetic self-locking cabinet according to claim 1, characterized in that: The flipping frame (2) is provided with a first connecting arm (21), which is hinged to the base (1) via a first hinge shaft (22).

5. The magnetic self-locking cabinet according to claim 1, characterized in that: The flipping frame (2) is provided with a second connecting arm (23), which is hinged to one end of the pull rod (25) via a second hinge shaft (24). The other end of the pull rod (25) is hinged to the locking rod (3) via a third hinge shaft (26) to convert the flipping motion of the flipping frame (2) into the vertical motion of the locking rod (3).

6. The magnetic self-locking cabinet according to claim 1, characterized in that: The base (1) is provided with a guide hole (11), and the locking rod (3) slides vertically within the guide hole (11).

7. The magnetic self-locking cabinet according to claim 6, characterized in that: The back of the door panel (7) is also provided with a guide seat (71), and the lock rod (3) is also slidably fitted in the guide seat (71). The cabinet (8) is provided with a lock hole (6) corresponding to the position of the guide seat (71).

8. The magnetic self-locking cabinet according to claim 4, characterized in that: The first connecting arm (21) is located at the bottom of the flipping frame (2).

9. The magnetic self-locking cabinet according to claim 5, characterized in that: The second connecting arm (23) is located at the rear of the flipping frame (2).

10. The magnetic self-locking cabinet according to claim 1, characterized in that: The magnetic handle (4) is a detachable external handle that is set independently of the door panel (7).

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