Magnetic door lock

Abstract

The utility model belongs to the technical field of magnetic door locks, and particularly relates to a magnetic door lock which comprises a lock body and a magnetic lock catch box, a magnetic lock tongue, a counter lock mechanism, a handle operating handle and a key operating handle are arranged in the lock body, the lock body is of a split structure, a lock body panel is inserted into a shell through a U-shaped fixing lug and is hidden in the shell in cooperation with a screw hole fixing screw, and the lock catch box is arranged in the lock body. A lock box part of the magnetic lock catch box and a lock box panel are assembled through a buckle, no connecting piece is exposed, damping mechanisms are arranged on the two sides of a magnetic lock tongue, linear increasing damping force is generated, the maximum buffer is provided at the tail end of the stroke to control the movement speed of the lock tongue, hard collision with the lock box part is avoided, and door opening and closing noise is greatly reduced. The appearance attractiveness is improved through the hidden assembly structure, the problems that in the prior art, noise is large, and parts are rapidly abraded are solved through the design of the damping mechanism and the sound absorption cotton, the service life of the door lock is remarkably prolonged, user experience is remarkably improved, and safety and practicability are both achieved.

Description

Technical Field

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

[0002] Magnetic door locks are a modern door lock device with a simple, stylish and beautiful appearance. They can be adapted to various door types and are easy to install without complicated installation procedures, providing reliable security for homes and commercial spaces.

[0003] Existing magnetic door locks mainly consist of the following parts: permanent magnet, latch, lock body shell, and spring. The permanent magnet is the core component, providing continuous attraction force. When the door is closed, the strong magnetic force generated by the permanent magnet firmly attracts the bolt to the latch, keeping the door closed. When the door needs to be opened, external force is applied manually to overcome the magnetic force of the permanent magnet, causing the bolt to disengage from the latch, thereby opening the door.

[0004] Current magnetic door locks suffer from the following drawbacks: Traditional magnetic door locks often use exposed screws to fix the lock body panel and housing, or the assembly structure of the magnetic strike box results in noticeable connecting parts on the exterior, which not only detracts from the overall aesthetics of the lock but also makes it difficult to match the minimalist decor of modern homes or commercial spaces, resulting in visual inconsistencies. Furthermore, during the extension or retraction of the magnetic latch in existing magnetic door locks, the latch is prone to high-speed movement due to magnetic force or the return spring, causing a hard collision with the strike box. This not only generates significant noise but also accelerates the wear of components such as the latch and strike box, reducing the lock's lifespan and impacting the user experience. Therefore, a new magnetic door lock is proposed to address these issues. Utility Model Content

[0005] To address the shortcomings of existing magnetic door locks, a new type of magnetic door lock is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The magnetic door lock of this utility model includes a lock body and a magnetic latch box respectively installed on the door body and the door frame. The lock body is provided with a magnetic latch and a deadbolt mechanism, as well as a handle operating handle that cooperates with the deadbolt mechanism to open the door, and a key operating handle that cooperates with the lock cylinder to lock and unlock the deadbolt mechanism. After the door is closed, the magnetic latch can be magnetically attracted into the magnetic latch box to lock the door. The lock body includes a lock body panel and two opposing assembled shells. A U-shaped fixing ear is provided on the mating surface of the lock body panel and the shell. The U-shaped fixing ear can be inserted into the shell. Both the U-shaped fixing ear and the shell are provided with screw holes for fixing. The magnetic latch box includes a lock box part that cooperates with the magnetic latch. A lock box panel is attached to one side of the lock box part by a snap fastener.

[0007] Preferably, the magnetic latch is provided with a damping mechanism, which includes two damping blocks located on the inner wall of the housing and distributed on both sides of the magnetic latch. The magnetic latch has mounting grooves on both sides corresponding to the damping blocks. A sliding mounting block is connected to the mounting groove through a spring end. A ball is mounted on one side of the sliding mounting block. A slanted groove is provided on the side of the damping block near the magnetic latch. The ball abuts against the slanted groove. A semi-circular groove that cooperates with the ball is provided on the slanted groove near the outlet of the magnetic latch. An arc-shaped bevel is provided at the edge of the semi-circular groove.

[0008] Preferably, the inclination of the groove gradually increases from the exit end of the magnetic latch.

[0009] Preferably, sound-absorbing cotton is provided on the contact surface between the inside of the lock box and the magnetic lock tongue.

[0010] Preferably, a locking pin is fixedly provided at one end of the magnetic latch, a connecting rod is provided at one end of the locking pin, a baffle is fixed at one end of the connecting rod by screws, a guide sleeve is positioned inside the housing, the connecting rod slides through the guide sleeve, a return spring is connected between the guide sleeve and the baffle to reset the magnetic latch into the housing, and the return spring is sleeved on the connecting rod.

[0011] Preferably, a linkage handle for assisting the magnetic locking tongue to retract into the housing is rotatably provided inside the housing between the anti-locking mechanism and the guide sleeve.

[0012] Preferably, the locking mechanism is provided with a linkage groove that cooperates with the key operating handle.

[0013] Preferably, the locking mechanism is provided with an abutment portion that cooperates with the handle operating lever.

[0014] Preferably, the anti-locking mechanism is provided with a locking part that cooperates with the locking pin to lock the magnetic latch.

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

[0016] 1. Simple and beautiful appearance design: The lock body panel and the shell adopt a U-shaped fixed ear hidden assembly, and the screws are fixed inside, with a smooth and flat outer surface; the lock box part of the magnetic lock box is connected to the lock box panel by a buckle, with no exposed connecting parts. This design makes the exterior of the door lock free of screws, buckles and other structural damage. The overall shape is simple and elegant, which can perfectly match various decoration styles, satisfying practical functional needs while significantly improving the aesthetics and decoration of the product.

[0017] 2. The damping mechanism of the magnetic latch uses the cooperation of the inclined groove and the spring to achieve dynamic adjustment of the damping force. When the magnetic latch extends or retracts, the ball rolls along the inclined groove, causing the spring compression to change with the stroke, generating a linearly increasing damping force. It provides maximum buffering at the end of the stroke, accurately controls the movement speed of the latch, and effectively avoids hard collisions with the lock box. Combined with the sound-absorbing cotton inside the lock box, it greatly reduces the noise of opening and closing the door, reduces component wear, and significantly improves the service life of the door lock and the user experience. Attached Figure Description

[0018] 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:

[0019] Figure 1 This is a structural diagram of the lock body and magnetic lock box of this utility model;

[0020] Figure 2 yes Figure 1 Enlarged view of the structure at point A in the middle;

[0021] Legend:

[0022] 1. Lock body; 101. Lock body panel; 102. Housing; 2. Magnetic lock box; 201. Lock box section; 2011. Sound-absorbing cotton; 202. Lock box panel; 3. Magnetic lock tongue; 4. Deadbolt mechanism; 401. Linkage groove; 402. Abutment part; 403. Locking part; 5. Handle operating handle; 6. Key operating handle; 7. U-shaped fixing ear; 8. Damping mechanism; 801. Damping block; 802. Assembly groove; 803. Spring; 804. Sliding mounting block; 805. Ball bearing; 806. Inclined groove; 807. Semi-circular groove; 9. Locking pin; 10. Connecting rod; 11. Baffle; 12. Guide sleeve; 13. Return spring; 14. Linkage handle. Detailed Implementation

[0023] 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.

[0024] Specific implementation examples are given below.

[0025] Please see Figures 1-2The present invention discloses a magnetic door lock, comprising a lock body 1 and a magnetic latch box 2 respectively installed on the door body and the door frame. The lock body 1 contains a magnetic latch 3 and a deadbolt mechanism 4, a handle 5 that cooperates with the deadbolt mechanism 4 to open the door, and a key handle 6 that cooperates with the lock cylinder to lock and unlock the deadbolt mechanism 4. After the door is closed, the magnetic latch 3 can magnetically attach to the magnetic latch box 2 to lock the door. The lock body 1 includes a lock body panel 101 and two opposing assembled housings 10. 2. The lock body panel 101 has a through hole for the magnetic latch 3 to pass through. A U-shaped fixing ear 7 is provided on one side of the lock body panel 101 and the assembly surface of the housing 102. The U-shaped fixing ear 7 can be inserted into the housing 102. Both the U-shaped fixing ear 7 and the housing 102 have screw holes for fixing. The magnetic latch box 2 includes a lock box part 201 that cooperates with the magnetic latch 3. The lock box part 201 has a lock box panel 202 attached to one side by a snap fastener.

[0026] One end of the magnetic latch 3 is fixedly provided with a locking pin 9, and one end of the locking pin 9 is provided with a connecting rod 10. One end of the connecting rod 10 is fixed with a baffle 11 by screws. A guide sleeve 12 is positioned inside the housing 102. The connecting rod 10 slides through the guide sleeve 12. A return spring 13 is connected between the guide sleeve 12 and the baffle 11 to reset the magnetic latch 3 into the housing 102. The return spring 13 is sleeved on the connecting rod 10. A linkage handle 14 is rotatably provided inside the housing 102 between the anti-locking mechanism 4 and the guide sleeve 12 to assist the magnetic latch 3 in retracting into the housing 102. The anti-locking mechanism 4 is provided with a linkage groove 401 that cooperates with the key operating handle 6. The anti-locking mechanism 4 is provided with an abutment part 402 that cooperates with the handle operating handle 5. The anti-locking mechanism 4 is provided with a locking part 403 that cooperates with the locking pin 9 to lock the magnetic latch 3. During operation... In everyday use, when the door is closed, the magnetic latch 3 moves toward the magnetic lock box 2 under its own magnetism. As the magnetic latch 3 gradually approaches the lock box 201, the magnetic attraction between the two gradually increases until the magnetic latch 3 is completely embedded in the lock box 201. Relying on the strong magnetic attraction, the door is tightly attracted, completing the locking process. When the door needs to be opened, the user manually turns the handle 5. This operation transmits the rotational force to the abutment part 402 on the anti-locking mechanism 4 through the mechanical transmission structure. The anti-locking mechanism 4 slides and is linked with the linkage handle 14. The linkage handle 14 rotates its other end and pushes the baffle 11 to move. The baffle 11 drives the magnetic latch 3 to move into the housing 102, overcoming the magnetic attraction between the magnetic latch 3 and the magnetic lock box 2. The magnetic latch 3 then retracts into the housing 102 along the guide trajectory of the guide sleeve 12, thereby releasing the door from its locked state and allowing the door to be opened smoothly.

[0027] When it is necessary to lock the lock body 1, the user can insert the key into the lock cylinder and turn the key operating handle 6. The rotation of the key operating handle 6 cooperates with the linkage groove 401 on the locking mechanism 4, causing the locking mechanism 4 to move and move the locking part 403 to engage with the lock cylinder 9, thus entering the locking state. At the same time, due to the movement of the locking mechanism 4, the abutment part 402 on it moves away from the handle operating handle 5. At this time, the rotation of the handle operating handle 5 will not contact the abutment part 402, meaning that the user will not be able to open the door through the door handle, thus improving the anti-theft performance of the door lock. When it is necessary to unlock, turn the key operating handle 6 again, and the locking mechanism 4 will reset, returning to the state where the door can be opened normally through the handle operating handle 5.

[0028] Regarding the installation of the door lock, the lock body 1 adopts a split design. The U-shaped fixing lugs 7 of the lock body panel 101 can be inserted into the two opposing assembled housings 102. A fixed connection is achieved by screwing screws into the corresponding screw holes of the U-shaped fixing lugs 7 and housings 102. This structure not only ensures the stability of the lock body structure but also facilitates assembly during manufacturing. The lock box part 201 of the magnetic latch box 2 is assembled with the lock box panel 202 via a snap-fit ​​mechanism. This assembly method is simple to operate; during installation, simply align the lock box panel 202 with the snap-fit ​​position of the lock box part 201 and press to complete the installation. No tools are needed for disassembly; the latches can be easily pried open, greatly improving the efficiency of installation and maintenance. In addition, the lock body panel 101 and the housing 102 are fixed by U-shaped fixing ears 7, with the screws hidden inside, making the surface of the lock body panel 101 flat and smooth, without exposed screws that would spoil the overall aesthetics. The latch assembly method between the lock box part 201 of the magnetic latch box 2 and the lock box panel 202 also ensures the simple and beautiful appearance of the lock box panel 202. This design not only enhances the visual quality of the door lock but also makes it better suited to various decoration styles, enhancing the product's attractiveness and competitiveness in the market.

[0029] Furthermore, the magnetic latch 3 is provided with a damping mechanism 8. The damping mechanism 8 includes two damping blocks 801 located on the inner wall of the housing 102 and distributed on both sides of the magnetic latch 3. Assembly slots 802 are provided on both sides of the magnetic latch 3 corresponding to the damping blocks 801. A sliding mounting block 804 is connected to the mounting slot 802 via a spring 803. A ball bearing 805 is mounted on one side of the sliding mounting block 804. The damping blocks 801 are positioned against... A sloping groove 806 is provided on one side near the magnetic latch 3. The inclination of the sloping groove 806 gradually increases from the exit end of the magnetic latch 3. The ball 805 abuts against the sloping groove 806. A semi-circular groove 807 that cooperates with the ball 805 is provided on the sloping groove 806 near the exit of the magnetic latch 3. The edge of the semi-circular groove 807 is provided with an arc-shaped bevel. Sound-absorbing cotton 2011 is provided on the contact surface between the inside of the lock box 201 and the magnetic latch 3.During operation, when the magnetic latch 3 is in the closed state within the housing 102, the ball bearing 805 is located at a position with a greater depth in the inclined groove 806. At this time, the spring 803 is less compressed, and the damping force generated on the magnetic latch 3 is also smaller, which does not hinder the normal extension of the magnetic latch 3 under the action of magnetic force. As the magnetic force generated by the permanent magnet inside the lock box 201 begins to extend the magnetic latch 3, the ball bearing 805 rolls outward along the inclined groove 806. Since the depth of the inclined groove 806 near the exit end of the magnetic latch 3 is small, the sliding mounting block 804 will be continuously squeezed during the rolling process, and the compression of the spring 803 will gradually increase, and the resulting reverse elastic force will also increase accordingly. This causes the magnetic latch 3 to be subjected to [unclear text - possibly referring to a specific force or effect] during the extension process. The damping force gradually increases linearly in a region. When the magnetic latch 3 moves to the end of its stroke before entering the lock box 201, the ball 805 is at the shallowest point of the groove 806. At this point, the movement speed of the magnetic latch 3 is effectively slowed down, preventing it from having a rapid and hard collision with the lock box 201. When the magnetic latch 3 is fully inserted into the lock box 201, the ball 805 also rolls into the semi-circular groove 807 for limiting, while releasing the elastic potential energy of the spring 803. This prevents the spring from being in a fatigued compressed state when closing the door, greatly improving the service life of the spring 803. Furthermore, the arc-shaped bevel at the edge of the semi-circular groove 807 does not affect the ball 805 leaving the semi-circular groove 806 when opening the door. 7. The sound-absorbing cotton 2011 inside the lock box 201 also absorbs the vibration energy generated by the collision between the magnetic latch 3 and the lock box 201, further reducing noise. Similarly, during the retraction process of the magnetic latch 3, the ball 805 rolls inward along the inclined groove 806, and the spring 803 gradually recovers its deformation from its compressed state, generating a gradually changing damping force to control the retraction speed of the magnetic latch 3. This invention's damping mechanism, through the clever coordination of the depth change of the inclined groove 806 and the degree of compression of the spring 803, achieves control over the damping force during the movement of the magnetic latch 3. Throughout the entire process of the magnetic latch 3 extending and retracting, the damping force can be adaptively adjusted according to the motion state, providing maximum damping force at the end of the stroke. The high damping effectively avoids hard collisions between components, greatly reducing wear on components such as the magnetic latch 3 and damping block 801, significantly extending the service life of key door lock components. It can better adapt to different usage scenarios and frequencies, reducing component wear caused by frequent door opening and closing, and improving the overall stability and reliability of the door lock. The sound-absorbing cotton 2011 works in conjunction with the damping mechanism 8 to reduce the speed of hard collisions, effectively absorbing the noise generated by the collision between the magnetic latch 3 and the lock box 201, making the door opening and closing process quieter and more comfortable. This meets users' needs for high-quality door locks, creating a quieter and more comfortable user environment, and greatly enhancing the product's user experience and market competitiveness.

[0030] 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.

[0031] 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) and a magnetic latch box (2) respectively installed on a door body and a door frame, wherein the lock body (1) comprises a lock body panel (101) and two opposing assembled housings (102), the lock body (1) is provided with a magnetic latch (3) and a deadbolt mechanism (4), a handle operating handle (5) that cooperates with the deadbolt mechanism (4) to open the door, and a key operating handle (6) that cooperates with the lock cylinder to lock and unlock the deadbolt mechanism (4), wherein after the door is closed, the magnetic latch (3) can be magnetically attracted into the magnetic latch box (2) to lock the door, characterized in that: A U-shaped fixing ear (7) is provided on one side of the lock body panel (101) and the assembly surface of the housing (102). The U-shaped fixing ear (7) can be inserted into the housing (102), and both the U-shaped fixing ear (7) and the housing (102) are provided with screw holes for fixing. The magnetic lock box (2) includes a lock box part (201) that cooperates with the magnetic lock tongue (3). A lock box panel (202) is attached to one side of the lock box part (201) by a snap fastener.

2. A magnetic door lock according to claim 1, characterized in that: The magnetic latch (3) is provided with a damping mechanism (8). The damping mechanism (8) includes two damping blocks (801) located on the inner wall of the housing (102) and distributed on both sides of the magnetic latch (3). The magnetic latch (3) is provided with mounting grooves (802) on both sides corresponding to the damping blocks (801). A sliding mounting block (804) is connected to the mounting groove (802) through a spring (803). A ball (805) is mounted on one side of the sliding mounting block (804). A slanted groove (806) is provided on the side of the damping block (801) near the magnetic latch (3). The ball (805) abuts against the slanted groove (806). A semi-circular groove (807) that cooperates with the ball (805) is provided on the slanted groove (806) near the outlet of the magnetic latch (3). An arc-shaped bevel is provided on the edge of the semi-circular groove (807).

3. A magnetic door lock according to claim 2, characterized in that: The inclination of the sloping groove (806) gradually increases from the exit end of the magnetic latch (3).

4. A magnetic door lock according to claim 1, characterized in that: Sound-absorbing cotton (2011) is provided on the contact surface between the inside of the lock box (201) and the magnetic latch (3).

5. A magnetic door lock according to claim 1, characterized in that: One end of the magnetic latch (3) is fixedly provided with a locking pin (9), and one end of the locking pin (9) is provided with a connecting rod (10). One end of the connecting rod (10) is fixed with a baffle (11) by screws. A guide sleeve (12) is positioned inside the housing (102). The connecting rod (10) slides through the guide sleeve (12). A reset spring (13) is connected between the guide sleeve (12) and the baffle (11) for resetting the magnetic latch (3) into the housing (102). The reset spring (13) is sleeved on the connecting rod (10).

6. A magnetic door lock according to claim 1, characterized in that: The housing (102) is rotatably provided with an auxiliary magnetic locking tongue (3) that retracts into the housing (102) between the anti-locking mechanism (4) and the guide sleeve (12).

7. A magnetic door lock according to claim 1, characterized in that: The locking mechanism (4) is provided with a linkage groove (401) that cooperates with the key operating handle (6).

8. A magnetic door lock according to claim 1, characterized in that: The locking mechanism (4) is provided with an abutment part (402) that cooperates with the handle (5).

9. A magnetic door lock according to claim 1, characterized in that: The anti-locking mechanism (4) is provided with a locking part (403) that cooperates with the locking pin (9) to lock the magnetic latch (3).

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