A magnetic door lock

Abstract

This utility model belongs to the field of door lock technology, specifically a magnetic door lock, including a lock body assembled on the door and a lock box assembled on the door frame. A bolt magnetically engages with the lock box and pivots within the lock body. An inner handle and an outer handle, respectively connected to the inner and outer door handles, are rotatably mounted within the lock body, with inner and outer linkage components respectively positioned on them. A lever is rotatably mounted within the lock body, with a hook at one end engaging with the driving part of the bolt. The inner and outer handles can drive the lever to pivot by driving the corresponding linkage components, pulling the bolt back into the lock body to unlock. The lock body has a slidable transmission switching mechanism, including a moving block, a linkage pin in an arc-shaped sliding hole on the moving block, and a protrusion on the inner handle. A driving block is provided on the support arm of the inner linkage component. This utility model simplifies the structure through the above structural design, making the deadbolt operation convenient, highly adaptable, and improving usability and aesthetics.

Description

Technical Field

[0001] This utility model belongs to the field of door lock technology, specifically a magnetic door lock. Background Technology

[0002] Door locks are common tools for ensuring space security and are widely used in homes, offices and other scenarios. Their core function is to control access permissions. They meet the needs of security and convenience through different opening methods, balancing protection and ease of passage. They are a basic device for ensuring safety in daily life and work.

[0003] Current door locks have the following drawbacks: the deadbolt function often relies on additional deadbolt knobs, independent lock cylinder components, or linkage rods, resulting in a cumbersome internal structure. Furthermore, to achieve the deadbolt operation, exposed operating parts are often required on the door lock surface, which compromises the simplicity of the door lock's appearance and makes it less compatible with different door decoration styles. Therefore, a magnetic door lock is proposed to address these issues. Utility Model Content

[0004] To address the shortcomings of existing door locks, a magnetic door lock is proposed.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A magnetic door lock of this utility model includes a lock body assembled on the door body and a lock box assembled on the door frame. The lock body is pivotally provided with a lock tongue that magnetically cooperates with the lock box. The lock body is rotatably provided with an inner handle and an outer handle that are respectively connected to an inner door handle and an outer door handle. An inner linkage component is fitted at the upper limit of the inner handle, and an outer linkage component is fitted at the upper limit of the outer handle. A lever is rotatably provided in the lock body. The lock body is provided with a transmission switching mechanism that can slide up and down. The transmission switching mechanism includes a linkage pin that links the inner linkage component and the outer linkage component with the lever. When the transmission switching mechanism is in the unlocked position, the inner linkage component and the outer linkage component can drive the lever to rotate. When the transmission switching mechanism is in the deadbolt position, the outer linkage component cannot drive the lever to rotate. The upper limit of the inner handle is provided with a protrusion for pushing a moving block from the unlocked position to the deadbolt position. The inner linkage component is provided with a driving block for driving the moving block to reset and release the deadbolt state.

[0006] Preferably, the transmission switching mechanism further includes a moving block, on which an arc-shaped sliding hole is provided and the linkage pin is slidably disposed.

[0007] Preferably, the internal linkage is provided with a support arm a and a support arm b, and a return spring a is connected between the support arm b and the inner wall of the lock body. The support arm a drives the lever to swing by pushing the linkage pin.

[0008] Preferably, the external linkage component is provided with a support arm c and a support arm d. A return spring b is connected between the support arm d and the inner wall of the lock body. The support arm c drives the lever to swing by pushing the linkage pin. When the moving block moves down, the linkage pin is disengaged from the support arm c, and the support arm c cannot drive the lever to swing, thereby realizing the door lock is deadbolted.

[0009] Preferably, the support arm a is longer than the support arm c, and the length of the support arm a covers the range of movement of the linkage pin.

[0010] Preferably, the movable block is provided with a positioning ball through a groove and a spring, and the lock body is provided with an unlocking hole and a deadbolt hole that cooperate with the positioning ball to limit the position of the movable block. When the positioning ball moves into the unlocking hole, the support arm c can push the linkage pin to unlock. When the positioning ball moves into the deadbolt hole, the support arm c cannot push the linkage pin to lock.

[0011] Preferably, the movable block is provided with a guide block, and the lock body is provided with a guide hole that cooperates with the guide block. A reset spring c for driving the movable block to reset is connected between the guide hole and the guide block.

[0012] Preferably, one end of the lever is provided with a hook part, and the locking tongue is provided with a driving part that cooperates with the hook part.

[0013] Preferably, the inner wall of the lock body is provided with a limiting block to limit the retraction of the bolt into the lock body, and a tension spring is connected between one side of the bolt and the inner wall of the lock body to retract the bolt into the lock body.

[0014] Preferably, the lever has an arc-shaped groove that cooperates with the linkage pin. When the moving block moves to the anti-lock position, the linkage pin slides into the arc-shaped groove.

[0015] The beneficial effects of this utility model are:

[0016] This utility model provides a magnetic door lock. The coordinated design of the moving block, linkage pin, and protrusion in the transmission switching mechanism allows for deadbolt locking simply by rotating the inner handle in the opposite direction. This eliminates the need for the independent and complex structure and exposed knob required by traditional door locks to achieve the deadbolt function, simplifying the internal structure of the lock body. At the same time, no additional operating parts are needed on the door lock surface, resulting in a simpler and smoother appearance. This not only avoids the risk of accidental activation but also better adapts to different door decoration styles, enhancing both ease of use and aesthetics. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is an internal structural diagram of the lock body of this utility model when it is locked;

[0019] Figure 2 This is an internal structural diagram of the lock body of this utility model when it is in the unlocked position;

[0020] Figure 3 This is a structural diagram of the lock body of this utility model;

[0021] Figure 4 This is a structural diagram of the lock body of this utility model after it is locked and reverse-locked;

[0022] Figure 5 This is a structural diagram showing the positional relationship between the external linkage component and the linkage pin after the lock body of this utility model is locked and reversed.

[0023] Legend:

[0024] 1. Lock body; 2. Lock box; 3. Lock tongue; 301. Drive unit; 4. Inner handle; 5. Outer handle; 6. Inner linkage component; 601. Support arm a; 602. Support arm b; 603. Return spring a; 7. Outer linkage component; 701. Support arm c; 702. Support arm d; 703. Return spring b; 8. Lever; 801. Hook and pull part; 9. Transmission switching mechanism; 901. Moving block; 902. Arc-shaped sliding hole; 903. Linkage pin; 905. Positioning ball; 906. Unlocking hole; 907. Deadbolt hole; 10. Drive block; 11. Guide block; 12. Guide hole; 13. Return spring c; 14. Limit block; 15. Tension spring; 16. Protrusion; 17. Arc-shaped groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Specific implementation examples are given below.

[0027] Please see Figures 1-5The present invention discloses a magnetic door lock, comprising a lock body 1 mounted on a door and a lock box 2 mounted on a door frame. A latch 3, which magnetically engages with the lock box 2, is pivotally mounted within the lock body 1. An inner handle 4 and an outer handle 5, respectively connected to an inner door handle and an outer door handle, are rotatably mounted within the lock body 1. An inner linkage 6 is fitted onto the upper limit of the inner handle 4, and an outer linkage 7 is fitted onto the upper limit of the outer handle 5. A lever 8 is rotatably mounted within the lock body 1, with a hook portion 801 at one end. A drive mechanism that engages with the hook portion 801 is provided on the latch 3. Part 301, the inner wall of the lock body 1 is provided with a limiting block 14 to limit the retraction of the bolt 3 into the lock body 1. A tension spring 15 is connected between one side of the bolt 3 and the inner wall of the lock body 1 to retract the bolt 3 into the lock body 1. The inner handle 4 and the outer handle 5 can drive the lever 8 to pivot by driving the inner linkage 6 and the outer linkage 7 to pull the bolt 3 back into the lock body 1, thus opening the door. The lock body 1 is provided with a sliding transmission switching mechanism 9 through a guide structure. When the inner handle 4 drives the inner linkage 6 to rotate in the opposite direction, the outer linkage 7 no longer drives the lever 8 and the outer handle 5 to rotate freely and cannot open the door.

[0028] The transmission switching mechanism 9 includes a movable block 901, on which a linkage pin 903 is slidably disposed via an arc-shaped sliding hole 902. It also includes a protrusion 16, which is limited and sleeved on the inner handle 4 to push the movable block 901 to move and achieve locking. The inner linkage member 6 is provided with a support arm a601 and a support arm b602. A return spring a603 is connected between the support arm b602 and the inner wall of the lock body 1. The support arm a601 drives the lever by pushing the linkage pin 903. 8. The external linkage 7 is provided with support arm c701 and support arm d702. A return spring b703 is connected between support arm d702 and the inner wall of lock body 1. Support arm c701 drives lever 8 to swing by pushing linkage pin 903. When the moving block 901 moves downward, linkage pin 903 disengages from support arm c701, preventing support arm c701 from driving lever 8 to swing, thus achieving door lock. Support arm a601 is longer than support arm c701, and support arm a... The length of 601 covers the range of movement of the linkage pin 903. During operation, when unlocking, rotating the inner handle 4 or the outer handle 5 causes the inner linkage 6 or outer linkage 7 to rotate synchronously. The support arm a601 of the inner linkage 6 or the support arm c701 of the outer linkage 7 contacts and pushes the linkage pin 903. The linkage pin 903 slides along the arc-shaped sliding hole 902 of the moving block 901. Simultaneously, the linkage pin 903 drives the lever 8 to swing around the rotation axis, and the lever 8's linkage... Part 801 hooks the drive part 301 of the latch 3, pulling the latch 3 to overcome the magnetic force of the lock box 2. At the same time, the tension spring 15 assists the latch 3 to retract into the lock body 1 until it is blocked by the limit block 14. The latch 3 is fully retracted, and the door can be unlocked and opened. When the inner handle 4 or the outer handle 5 is released, the inner linkage 6 is reset in the opposite direction under the action of the return spring a603 and the outer linkage 7 is reset in the action of the return spring b703. The lever 8 is released from the pull on the latch 3 and the torsion spring set on it resets it.

[0029] When deadbolt operation is required, the inner handle 4 is rotated in the opposite direction (opposite to the unlocking direction). The inner handle 4 drives the protrusion 16 to rotate synchronously. The protrusion 16 pushes the moving block 901 to slide downward along the guide structure. When the moving block 901 moves downward, it drives the linkage pin 903 to move away from the outer linkage 7. Since the support arm a601 is longer than the support arm c701, the support arm a601 can still contact the linkage pin 903, so the deadbolt operation will not affect the inner handle from opening the door, while the support arm c701 is completely disengaged from the linkage pin 903. When the outer handle 5 is turned, the support arm c701 of the outer linkage 7 cannot push the linkage pin 903, the lever 8 does not move, the lock tongue 3 remains extended, and the outer door handle drives the outer handle 5 to rotate freely and cannot open the door, thus achieving deadbolt. Through the design and cooperation of the above structure, the deadbolt logic of this utility model is simple. The deadbolt can be triggered by simply rotating the inner handle 4 in the opposite direction. There is no need to set up an independent and complicated structure in the lock body 1, and there is no need to set up an additional exposed and complicated knob on its surface. The operation is convenient and conforms to the user's usage habits.

[0030] Furthermore, the support arm a601 is provided with a drive block 10 for driving the moving block 901 to reset and release the deadbolt state. A positioning ball 905 is provided on the moving block 901 via a groove and a spring. The lock body 1 has an unlocking hole 906 and a deadbolt hole 907 that cooperate with the positioning ball 905, used to limit the position of the moving block 901. When the positioning ball 905 moves into the unlocking hole 906, the support arm c701 can push the linkage pin 903 to unlock. When the positioning ball 905 moves into the deadbolt hole 907, the support arm c701 cannot push the linkage pin 903 to deadbolt. The moving block 901 is provided with a guide block 11, and the lock body 1 has a guide hole 12 that cooperates with the guide block 11. The guide hole 12 is located between the guide block 11 and the guide block 11. A return spring c13 is connected to the drive moving block 901 for resetting. During operation, when the deadbolt is released, the inner handle 4 is rotated in the forward direction (i.e., the unlocking direction). The support arm a601 of the inner linkage 6 drives the drive block 10 to rotate synchronously. The drive block 10 pushes the moving block 901 to slide upward. When the moving block 901 moves upward, the positioning ball 905 is compressed by the inner wall of the lock body 1, compressing the spring and disengaging from the deadbolt hole 907. It moves upward with the moving block 901 to the unlocking hole 906. The positioning ball 905 is locked into the unlocking hole 906 under the action of the spring, and the position of the moving block 901 is locked. At the same time, the moving block 901 drives the linkage pin 903 to move closer to the outer linkage 7. The support arm c701 is realigned with the linkage pin 903, the outer handle 5 regains its ability to drive the lever 8, and the deadbolt state is released.

[0031] When the drive block 10 pushes the moving block 901 upward to release the deadbolt, the return spring c13 will continuously push the guide block 11 upward along the guide hole 12, assisting the moving block 901 to return to the unlocked position. Conversely, when the deadbolt is in the deadbolt state, the moving block 901 moves downward, and the positioning ball 905 will engage with the deadbolt hole 907, locking the moving block 901 to ensure reliable deadbolt. Through the cooperation of the above structure, the drive block 10 can push the moving block 901 to return to the deadbolt while the door is opened, and with the assistance of the return spring c13, releasing the deadbolt is effortless and efficient. The position of the moving block 901 is locked through physical engagement, avoiding accidental switching between deadbolt and unlocked states and improving structural stability.

[0032] Furthermore, the lever 8 is provided with an arc-shaped groove 17 that cooperates with the linkage pin 903. When the moving block 901 moves to the deadbolt position, the linkage pin 903 slides into the arc-shaped groove 17. During operation, when the moving block 901 moves down to the deadbolt state, the moving block 901 drives the linkage pin 903 to move down. When the positioning ball 905 is engaged in the deadbolt hole 907, the linkage pin 903 will slide into the arc-shaped groove 17, further limiting the position of the moving block 901.

[0033] The components of the lock body 1 of this utility model are arranged in a staggered manner, so that there will be no movement interference between the components during normal use. This is common knowledge to those skilled in the art.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A magnetic door lock, comprising a lock body (1) mounted on a door and a lock box (2) mounted on a door frame, wherein a latch (3) is pivotally disposed within the lock body (1) and magnetically engages with the lock box (2), characterized in that: The lock body (1) is rotatably equipped with an inner handle (4) and an outer handle (5) respectively connected to the inner door handle and the outer door handle. An inner linkage component (6) is fitted onto the upper limit of the inner handle (4), and an outer linkage component (7) is fitted onto the upper limit of the outer handle (5). A lever (8) is rotatably equipped within the lock body (1). The lock body (1) is also equipped with a vertically sliding transmission switching mechanism (9), which includes a linkage pin that links the inner linkage component (6) and the outer linkage component (7) with the lever (8). 903), when the transmission switching mechanism (9) is in the unlocked position, the inner linkage (6) and the outer linkage (7) can drive the lever (8) to rotate. When the transmission switching mechanism (9) is in the deadlock position, the outer linkage (7) cannot drive the lever (8) to rotate. The upper limit of the inner handle (4) is provided with a protrusion (16) for pushing the moving block (901) from the unlocked position to the deadlock position. The inner linkage (6) is provided with a drive block (10) for driving the moving block (901) to reset and release the deadlock state.

2. The magnetic door lock of claim 1, wherein: The transmission switching mechanism (9) also includes a moving block (901), on which an arc-shaped sliding hole (902) is provided, and the linkage pin (903) is slidably disposed therein.

3. The magnetic door lock of claim 1, wherein: The inner linkage (6) is provided with a support arm a (601) and a support arm b (602). The support arm b (602) is connected to the inner wall of the lock body (1) with a return spring a (603). The support arm a (601) drives the lever (8) to swing by pushing the linkage pin (903).

4. A magnetic door lock according to claim 1, characterized in that: The external linkage component (7) is provided with a support arm c (701) and a support arm d (702). The support arm d (702) is connected to the inner wall of the lock body (1) with a return spring b (703). The support arm c (701) drives the lever (8) to swing by pushing the linkage pin (903). When the moving block (901) moves down, the linkage pin (903) is disengaged from the support arm c (701). The support arm c (701) cannot drive the lever (8) to swing, thereby realizing the door lock reverse locking.

5. The magnetic door lock of claim 3, wherein: The support arm a (601) is longer than the support arm c (701), and the length of the support arm a (601) covers the range of movement of the linkage pin (903).

6. The magnetic door lock of claim 2, wherein: The movable block (901) has a positioning ball (905) provided by a groove and spring. The lock body (1) has an unlocking hole (906) and a deadbolt hole (907) that cooperate with the positioning ball (905) to limit the position of the movable block (901). When the positioning ball (905) moves into the unlocking hole (906), the support arm c (701) can push the linkage pin (903) to unlock. When the positioning ball (905) moves into the deadbolt hole (907), the support arm c (701) cannot push the linkage pin (903) to lock.

7. The magnetic door lock of claim 2, wherein: The movable block (901) is provided with a guide block (11), and the lock body (1) is provided with a guide hole (12) that cooperates with the guide block (11). A reset spring c (13) for driving the movable block (901) to reset is connected between the guide hole (12) and the guide block (11).

8. The magnetic door lock of claim 1, wherein: One end of the lever (8) is provided with a hook part (801), and the latch (3) is provided with a drive part (301) that cooperates with the hook part (801).

9. The magnetic door lock of claim 1, wherein: The inner wall of the lock body (1) is provided with a limiting block (14) to limit the retraction of the latch (3) into the lock body (1), and a tension spring (15) is connected between one side of the latch (3) and the inner wall of the lock body (1) to retract the latch (3) into the lock body (1).

10. The magnetic door lock of claim 1, wherein: The lever (8) has an arc-shaped groove (17) that cooperates with the linkage pin (903). When the moving block (901) moves to the anti-lock position, the linkage pin (903) slides into the arc-shaped groove (17).

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