Magnetic door lock

Abstract

The application discloses a magnetic door lock, which comprises a lock shell, a lock tongue arranged in the lock shell, an inner handle connecting plate and an inner unlocking plate rotatably arranged on one side of the lock shell, an outer handle connecting plate and an outer unlocking plate rotatably arranged on the other side of the lock shell, a clutch assembly arranged on the lower end of the outer unlocking plate and matched with the outer handle connecting plate, and the upper end of the outer unlocking plate matched with the lock tongue, wherein the upper end of the inner handle connecting plate is provided with a linkage, one end of the linkage is matched with the upper end of the inner unlocking plate, and the other end of the linkage is matched with the clutch assembly; when the inner handle is pulled, the linkage pushes the clutch assembly to slide downwards, so that the outer handle connecting plate is separated from the outer unlocking plate; when the inner handle is pressed, the linkage pushes the clutch assembly to slide upwards through the inner unlocking plate, so that the clutch assembly makes the outer handle connecting plate and the outer unlocking plate re-linkage, and the door lock is in an unlocking state; and the door lock is simplified in reverse locking and unlocking operations and internal structure.

Description

Technical Field

[0001] This invention relates to the field of door lock technology, and more specifically, to a magnetic door lock. Background Technology

[0002] Door locks are an important barrier to protect property and privacy. A door lock generally consists of a lock body and an inner and outer handle that move the bolt inside the lock body. When the door is locked, people outside cannot use the outer handle to retract the bolt into the lock body. They can only unlock the door by first opening the lock cylinder with a key, and then they can unlock it by turning the outer handle. This is how the door locks protect privacy and property.

[0003] Existing door locks typically require rotating a knob inside the door to lock and unlock them. After unlocking, the inner door handle must be rotated to unlock them again, which is cumbersome and structurally complex. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a magnetic door lock.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A magnetic door lock includes a lock housing, wherein a lock tongue is provided inside the lock housing; an inner handle connecting plate and an inner unlocking plate are rotatably provided on one side of the lock housing, and an outer handle connecting plate and an outer unlocking plate are rotatably provided on the other side.

[0007] The lower end of the outer unlocking plate engages with the outer handle connecting plate via a clutch assembly slidably mounted on the lock housing, and its upper end engages with the lock tongue.

[0008] A linkage component is installed at the upper end of the inner handle connecting plate. One end of the linkage component engages with the upper end of the inner unlocking plate, and the other end engages with the clutch assembly.

[0009] The inner handle connecting plate drives the linkage to rotate toward the clutch assembly side, and the linkage pushes the clutch assembly downward to slide, so that the outer handle connecting plate separates from the outer unlocking plate; the inner handle connecting plate drives the linkage to rotate toward the other side, and the linkage pushes the inner unlocking plate to rotate, and the lower end of the inner unlocking plate pushes the clutch assembly upward to slide, so that the outer handle connecting plate engages with the outer unlocking plate; at the same time, the upper end of the inner unlocking plate pushes the lock tongue to retract into the lock case.

[0010] The present invention further comprises: the clutch assembly including a clutch slider and a clutch pin slidably disposed on the lock housing, the clutch pin being slidably disposed within the groove of the clutch slider;

[0011] When the door lock is in the unlocked state, the two sides of one end of the clutch column abut against the inner handle connecting plate and the inner unlocking plate respectively, and the two sides of the other end abut against the outer handle connecting plate and the outer unlocking plate respectively.

[0012] Rotating the outer handle connecting plate will cause the outer unlocking plate to rotate via the clutch pin, causing the upper end of the outer unlocking plate to push the lock tongue back into the lock case.

[0013] The present invention further includes: a positioning spring and a positioning ball installed on the clutch slider; and an anti-locking positioning hole and an unlocking positioning hole spaced apart on the lock housing.

[0014] The positioning spring places a portion of the positioning ball into the anti-locking or unlocking positioning hole, locking the clutch slider in the anti-locking or unlocking position.

[0015] The present invention further provides that: the upper end of the clutch slider is provided with a stop arm that cooperates with the linkage component, and the lower end of the clutch slider is provided with a clutch return spring, which drives the clutch slider to slide from the locked position to the unlocked position.

[0016] The present invention further comprises: an unlocking claw at the upper end of the inner unlocking plate and an unlocking claw at the lower end; one side of the unlocking claw cooperates with the linkage component, and the other side cooperates with the lock tongue.

[0017] The unlocking claw is located below the clutch assembly. When the inner handle connecting plate pushes the inner unlocking plate to rotate, the unlocking claw will push the clutch assembly to slide upward.

[0018] The inner unlocking plate is provided with a reset claw on its outer side. The reset claw cooperates with the unlocking plate reset torsion spring on the lock shell. After unlocking, the unlocking plate reset torsion spring will drive the inner unlocking plate to rotate in the opposite direction through the reset claw to achieve reset.

[0019] The present invention further provides that: the upper end of the inner handle connecting plate is provided with a mounting lug, and the linkage component is detachably mounted on the mounting lug.

[0020] The present invention further provides that: both the inner handle connecting plate and the outer handle connecting plate are provided with limiting protrusions protruding outwards, and the lock shell is provided with limiting grooves that are adapted to the limiting protrusions. When the inner handle connecting plate or the outer handle connecting plate is rotated, the limiting protrusions slide between the two ends of the limiting grooves.

[0021] The present invention further provides that: the outer handle connecting plate and the inner handle connecting plate have the same structure, and the outer unlocking plate and the inner unlocking plate have the same structure.

[0022] The present invention further provides that: the rear end of the lock tongue is provided with a stop portion that cooperates with the unlocking claws of the outer unlocking plate and the inner unlocking plate, and the front end of the lock tongue is provided with a lock tongue return spring that drives the lock tongue to retract into the lock shell.

[0023] The present invention further includes: a lock cylinder connecting plate rotatably disposed inside the lock housing, the lock cylinder connecting plate being connected to the lock cylinder; the lock cylinder connecting plate having a push arm at one end facing the clutch slider, the push arm being inserted into the mating groove of the clutch slider; rotating the lock cylinder connecting plate causes the push arm to drive the clutch slider to slide upward or downward.

[0024] The beneficial effects of this invention are as follows: One side of the lock housing is rotatably equipped with an inner handle connecting plate and an inner unlocking plate, while the other side is rotatably equipped with an outer handle connecting plate and an outer unlocking plate. The inner and outer handle connecting plates are respectively connected to the inner and outer handles. When a person inside the door lifts the inner handle upwards, the linkage on the inner handle connecting plate moves towards the clutch assembly and presses down on the clutch assembly. This clutch assembly separates from the outer handle connecting plate and the outer unlocking plate, placing them in a disengaged state. When a person outside the door presses down on the outer handle, the outer handle connecting plate can only rotate freely and cannot drive the outer unlocking plate to push the bolt back into the lock housing, thus locking the door in the reverse position. In this state, when a person inside the door presses down the inner handle, the linkage on the inner handle connecting plate moves towards the inner unlocking plate and pushes the inner unlocking plate to rotate. The lower end of the inner unlocking plate moves towards the clutch assembly and pushes the clutch assembly to slide upward. The clutch assembly causes the outer handle connecting plate and the outer unlocking plate to re-link, putting the door lock in the unlocked state. At the same time, the upper end of the inner unlocking plate pushes the bolt back into the lock case, enabling the door lock to unlock and unlock simultaneously. When a person inside the door locks the door from the inside, they only need to lift the inner handle backwards; when they unlock or unlock the door, they only need to press down the inner handle, simplifying the operation of the door lock and also simplifying the internal structure of the door lock. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the deadbolt state of a magnetic door lock according to the present invention. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the unlocking state of a magnetic door lock according to the present invention. Figure 1 ;

[0027] Figure 3 This is a schematic diagram of the deadbolt state of a magnetic door lock according to the present invention. Figure 2 ;

[0028] Figure 4 This is a schematic diagram of the unlocking state of a magnetic door lock according to the present invention. Figure 2 ;

[0029] Figure 5This is a diagram showing the fit between the outer handle connecting plate and the clutch assembly of a magnetic door lock according to the present invention.

[0030] Figure 6 This is a diagram showing the engagement of the inner unlocking plate and clutch assembly of a magnetic door lock according to the present invention.

[0031] Figure 7 This is a diagram showing the fit between the lock cylinder connecting plate and the clutch assembly of a magnetic door lock according to the present invention;

[0032] Figure 8 This is a schematic diagram of the clutch assembly of a magnetic door lock according to the present invention;

[0033] Figure 9 This is a schematic diagram of the lock housing of a magnetic door lock according to the present invention;

[0034] Figure 10 This is a schematic diagram of the structure of the inner handle connecting plate of a magnetic door lock according to the present invention;

[0035] Figure 11 This is a schematic diagram of the latch structure of a magnetic door lock according to the present invention;

[0036] Explanation of reference numerals in the attached drawings: 1. Lock housing; 11. Lock tongue; 111. Abutment part; 112. Lock tongue return spring; 12. Anti-lock positioning hole; 13. Unlock positioning hole; 14. Limiting groove; 2. Inner handle connecting plate; 21. Limiting protrusion; 22. Mounting lug; 3. Inner unlocking plate; 31. Unlocking claw; 32. Unlocking claw; 33. Return claw; 331. Unlocking plate return torsion spring; 4. Clutch assembly; 41. Clutch slider; 411. Slide groove; 412. Positioning spring; 413. Positioning ball; 414. Abutment arm; 415. Mating groove; 42. Clutch pin; 43. Clutch return spring; 6. Outer handle connecting plate; 7. Outer unlocking plate; 8. Linkage component; 9. Lock cylinder connecting plate; 91. Push arm. Detailed Implementation

[0037] See attached document Figures 1 to 11 The present invention provides a more detailed description of a magnetic door lock.

[0038] A magnetic door lock includes a lock housing 1, within which a latch 11 is provided. The latch 11 contains a built-in magnetic block, and a similar magnetic block is provided in the door lock latch box. When the door is closed, the latch 11 automatically extends out of the lock housing 1 and is placed inside the latch box under the attraction of the latch box. An inner handle connecting plate 2 and an inner unlocking plate 3 are rotatably mounted on one side of the lock housing 1, and an outer handle connecting plate 6 and an outer unlocking plate 7 are rotatably mounted on the other side. The inner handle connecting plate 2 and the outer handle connecting plate 6 are respectively connected to the inner handle and the outer handle. The lower end of the outer unlocking plate 7 engages with the outer handle connecting plate 6 via a clutch assembly 4 slidably mounted on the lock housing 1, and its upper end engages with the latch 11. A linkage 8 is installed on the upper end of the inner handle connecting plate 2; one end of the linkage 8 engages with the upper end of the inner unlocking plate 3, and the other end engages with the clutch assembly 4.

[0039] When a person inside the door pulls the inner handle upwards, the linkage 8 on the inner handle connecting plate 2 moves toward the clutch assembly 4 and presses down on the clutch assembly 4. This clutch assembly 4 separates from the outer handle connecting plate 6 and the outer unlocking plate 7, putting them in a disengaged state. When a person outside the door presses down on the outer handle, the outer handle connecting plate 6 can only rotate freely and cannot drive the outer unlocking plate 7 to push the bolt 11 back into the lock housing 1, thus locking the door. When a person inside the door presses down on the inner handle again, the linkage 8 on the inner handle connecting plate 2 moves toward the inner unlocking plate 3 and pushes down on the bolt 11. When the inner unlocking plate 3 rotates, its lower end moves toward the clutch assembly 4 and pushes the clutch assembly 4 upward. The clutch assembly 4 then re-engages the outer handle connecting plate 6 and the outer unlocking plate 7, putting the door lock in the unlocked state. Simultaneously, the upper end of the inner unlocking plate 3 pushes the bolt 11 back into the lock case 1, allowing the door to open. This enables the door lock to unlock and unlock simultaneously. When people inside the door need to deadbolt the lock, they only need to lift the inner handle backward. When they need to unlock or unlock the lock, they only need to press down the inner handle, simplifying the operation of the door lock and also simplifying the internal structure of the lock.

[0040] The clutch assembly 4 includes a clutch slider 41 and a clutch pin 42 slidably disposed on the lock housing 1. The clutch pin 42 is slidably disposed in the groove 411 of the clutch slider 41, wherein the groove 411 is arc-shaped. When the door lock is in the unlocked state, the two sides of one end of the clutch pin 42 abut against the inner handle connecting plate 2 and the inner unlocking plate 3 respectively, and the two sides of the other end abut against the outer handle connecting plate 6 and the outer unlocking plate 7 respectively. The outer handle connecting plate 6 and the inner handle connecting plate 2 are provided with abutment grooves adapted to the clutch pin 42. One side of the clutch pin 42 is placed in the abutment groove to prevent the clutch pin 42 from moving relative to the outer handle connecting plate 6 and the inner handle connecting plate 2 when the door lock is in the unlocked state.

[0041] Rotating the outer handle connecting plate 6 will cause the outer handle connecting plate 6 to push the outer unlocking plate 7 to rotate via the clutch pin 42. That is, the clutch pin 42 slides in the slide groove 411 under the push of the outer handle connecting plate 6, and pushes the outer unlocking plate 7 to rotate, so that the upper end of the outer unlocking plate 7 pushes the lock tongue 11 to retract into the lock case 1; thus unlocking the door lock.

[0042] To ensure that the clutch slider 41 can be stably positioned in the locked and unlocked positions, a positioning spring 412 and a positioning ball 413 are installed on the clutch slider 41. The lock housing 1 is provided with a locking hole 12 and an unlocking positioning hole 13 at intervals. The positioning spring 412 causes a portion of the positioning ball 413 to be placed in the locking hole 12 or the unlocking positioning hole 13, locking the clutch slider 41 in the locked or unlocked position. This prevents the clutch slider 41 from sliding on its own on the lock housing 1 and improves the structural stability of the door lock.

[0043] The upper end of the clutch slider 41 is provided with a stop arm 414 that cooperates with the linkage 8. The linkage 8 pushes the stop arm 414 downward under the action of the outer handle connecting plate 6, so that the clutch slider 41 slides downward. The lower end of the clutch slider 41 is fitted with a clutch return spring. The clutch return spring drives the clutch slider 41 to slide from the locked position to the unlocked position. When unlocking is required, the clutch slider 41 is driven to slide upward. When the lower end of the inner unlocking plate 3 pushes the clutch slider 41, so that the positioning ball 413 disengages from the anti-locking hole 12, the clutch slider 41 slides from the locked position to the unlocked position under the action of the clutch return spring, making the unlocking operation more effortless.

[0044] The inner unlocking plate 3 has an unlocking claw 32 at its upper end and an unlocking claw 31 at its lower end. One side of the unlocking claw 32 engages with the linkage 8, and the other side engages with the locking tongue 11. The unlocking claw 31 is positioned below the clutch assembly 4. When the inner handle connecting plate 2 pushes the inner unlocking plate 3 to rotate, the unlocking claw 31 will push the clutch assembly 4 to slide upward. That is, when the inner handle drives the inner handle connecting plate 2 to rotate, the inner handle connecting plate 2 drives the inner unlocking plate 3 to rotate, and the inner unlocking plate 3... The upper unlocking claw 32 drives the bolt 11 to retract into the lock case 1. At the same time, the unlocking claw 31 at the lower end of the inner unlocking plate 3 drives the clutch slider 41 to slide upward, so that the outer handle connecting plate 6 and the outer unlocking plate 7 are linked again through the clutch column 42 to unlock the door lock. When the door is closed, the bolt 11 is attracted out by the magnet in the latch box. People outside the door can turn the outer handle to make the outer handle connecting plate 6 drive the outer unlocking plate 7 to drive the bolt 11 to retract into the lock case 1 for unlocking operation.

[0045] The inner unlocking plate 3 is provided with a reset claw 33 on its outer side. The reset claw 33 cooperates with the unlocking plate reset torsion spring 331 on the lock shell 1. During the unlocking process, the reset claw 33 of the inner unlocking plate 3 will compress the unlocking plate reset torsion spring 331. After unlocking, the unlocking plate reset torsion spring 331 will drive the inner unlocking plate 3 to rotate in the opposite direction through the reset claw 33 to achieve reset.

[0046] To enable the door lock to be used with both left-opening and right-opening doors, the outer handle connecting plate 6 has the same structure as the inner handle connecting plate 2, and the outer unlocking plate 7 has the same structure as the inner unlocking plate 3. The upper end of the inner handle connecting plate 2 is provided with a mounting lug 22, and the linkage 8 is detachably mounted on the mounting lug 22. The mounting lug 22 has a screw hole, and the linkage 8 can be a linkage screw that matches the screw hole. One end of the linkage screw passes through the screw hole and engages with the clutch slider 41, while the screw head at the other end of the screw hole engages with the unlocking claw 32 of the inner unlocking plate 3. When the installation direction of the door lock needs to be changed, simply replace the linkage 8 originally mounted on the inner handle connecting plate 2 with the original outer handle connecting plate 6, so that the linkage 8 engages with the original outer unlocking plate 7, thus improving the door lock's applicability.

[0047] The reset claw on the outer unlocking plate 7 also abuts against the unlocking plate reset torsion spring 331. When the door lock is in the unlocked state, when the outer handle is turned to unlock, the reset claw on the outer unlocking plate 7 will compress the unlocking plate reset torsion spring 331. After unlocking is completed and the outer handle is released, the outer unlocking plate 7 will rotate in the opposite direction under the elastic force of the unlocking plate reset torsion spring 331 to achieve reset.

[0048] Both the inner handle connecting plate 2 and the outer handle connecting plate 6 have outwardly protruding limiting protrusions 21. The lock housing 1 has a limiting groove 14 that matches the limiting protrusions 21. When the inner handle connecting plate 2 or the outer handle connecting plate 6 is rotated, the limiting protrusions 21 slide between the two ends of the limiting groove 14. The limiting groove 14 is arc-shaped with an angle of 90 degrees, which limits the downward and upward rotation angles of the inner and outer handles to within 45 degrees. That is, the door lock can be unlocked and locked by pressing down or lifting the handle by 45 degrees.

[0049] The rear end of the latch 11 is provided with a stop part 111 that cooperates with the unlocking claw 32 of the outer unlocking plate 7 and the inner unlocking plate 3. That is, when unlocking, pressing down the inner handle or the outer handle causes the unlocking claw 32 on the inner handle connecting plate 2 or the outer handle connecting plate 6 to push the stop part 111, causing the latch 11 to retract into the lock case 1, thus unlocking. The front end is provided with a latch return spring 112 that drives the latch 11 to retract into the lock case 1. One end of the latch return spring 112 abuts against the lock case 1, and the other end abuts against the latch 11. When the latch 11 is sucked out by the snap box, it will compress the latch return spring 112. When the unlocking claw 32 pushes the stop part 111 to overcome the attraction of the magnet in the snap box, the latch return spring 112 will drive the latch 11 to slide towards the lock case 1, making it easier and more convenient for people to unlock.

[0050] The lock housing 1 contains a lock cylinder connecting plate 9, which is connected to the lock cylinder. The lock cylinder connecting plate 9 has a push arm 91 at one end facing the clutch slider 41, which is inserted into the mating groove 415 of the clutch slider 41. When the lock cylinder connecting plate 9 is rotated, the push arm 91 will drive the clutch slider 41 to slide up or down. That is, a person outside the door can drive the lock cylinder to rotate with a key to realize the door lock locking and unlocking operations from the outside.

[0051] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A magnetic door lock, comprising a lock housing, wherein a lock tongue is provided within the lock housing; characterized in that: The lock housing has an inner handle connecting plate and an inner unlocking plate rotatably mounted on one side, and an outer handle connecting plate and an outer unlocking plate rotatably mounted on the other side. The lower end of the outer unlocking plate engages with the outer handle connecting plate via a clutch assembly slidably mounted on the lock housing, and its upper end engages with the lock tongue. A linkage component is installed at the upper end of the inner handle connecting plate. One end of the linkage component engages with the upper end of the inner unlocking plate, and the other end engages with the clutch assembly. The inner handle connecting plate drives the linkage to rotate toward the clutch assembly, and the linkage pushes the clutch assembly downward to separate the outer handle connecting plate from the outer unlocking plate; the inner handle connecting plate drives the linkage to rotate toward the other side, and the linkage pushes the inner unlocking plate to rotate, and the lower end of the inner unlocking plate pushes the clutch assembly upward to re-engage the outer handle connecting plate with the outer unlocking plate; at the same time, the upper end of the inner unlocking plate pushes the bolt back into the lock case.

2. A magnetic door lock according to claim 1, characterized in that: The clutch assembly includes a clutch slider and a clutch pin slidably disposed on the lock housing, wherein the clutch pin is slidably disposed within the groove of the clutch slider; When the door lock is in the unlocked state, the two sides of one end of the clutch column abut against the inner handle connecting plate and the inner unlocking plate respectively, and the two sides of the other end abut against the outer handle connecting plate and the outer unlocking plate respectively. Rotating the outer handle connecting plate will cause the outer unlocking plate to rotate via the clutch pin, causing the upper end of the outer unlocking plate to push the lock tongue back into the lock case.

3. A magnetic door lock according to claim 2, characterized in that: The clutch slider is equipped with a positioning spring and a positioning ball, and the lock housing is provided with anti-locking positioning holes and unlocking positioning holes at intervals. The positioning spring places a portion of the positioning ball into the anti-locking or unlocking positioning hole, locking the clutch slider in the anti-locking or unlocking position.

4. A magnetic door lock according to claim 3, characterized in that: The upper end of the clutch slider is provided with a stop arm that cooperates with the linkage component, and the lower end is fitted with a clutch return spring. The clutch return spring drives the clutch slider to slide from the locked position to the unlocked position.

5. A magnetic door lock according to claim 1, 2, 3, or 4, characterized in that: The upper end of the inner unlocking plate is provided with an unlocking claw, and the lower end is provided with an unlocking claw. One side of the unlocking claw cooperates with the linkage component, and the other side cooperates with the lock tongue. The unlocking claw is located below the clutch assembly. When the inner handle connecting plate pushes the inner unlocking plate to rotate, the unlocking claw will push the clutch assembly to slide upward. The inner unlocking plate is provided with a reset claw on its outer side. The reset claw cooperates with the unlocking plate reset torsion spring on the lock shell. After unlocking, the unlocking plate reset torsion spring will drive the inner unlocking plate to rotate in the opposite direction through the reset claw to achieve reset.

6. A magnetic door lock according to claim 5, characterized in that: The upper end of the inner handle connecting plate is provided with a mounting lug, and the linkage can be detachably installed on the mounting lug.

7. A magnetic door lock according to claim 6, characterized in that: Both the inner handle connecting plate and the outer handle connecting plate have outward protrusions with limiting protrusions. The lock housing has a limiting groove that matches the limiting protrusions. When the inner handle connecting plate or the outer handle connecting plate is rotated, the limiting protrusions slide between the two ends of the limiting groove.

8. A magnetic door lock according to claim 7, characterized in that: The outer handle connecting plate and the inner handle connecting plate have the same structure, and the outer unlocking plate and the inner unlocking plate have the same structure.

9. A magnetic door lock according to claim 5, characterized in that: The rear end of the latch is provided with a stop part that cooperates with the unlocking claws of the outer unlocking plate and the inner unlocking plate, and the front end is provided with a latch return spring that drives the latch to retract into the lock case.

10. A magnetic door lock according to claim 2, 3, or 4, characterized in that: A lock cylinder connecting plate is rotatably disposed inside the lock housing, and the lock cylinder connecting plate is connected to the lock cylinder; the lock cylinder connecting plate has a push arm at one end facing the clutch slider, and the push arm is inserted into the mating groove of the clutch slider; rotating the lock cylinder connecting plate will cause the push arm to drive the clutch slider to slide up or down.

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