A magnetic lock that uses a tilting linkage to achieve both locking and protection.

Abstract

This invention belongs to the field of door lock technology and relates to a magnetic lock that achieves deadbolt locking and safety through an inclined linkage. It includes a bolt, a handle plate, and a bolt drive that links with the handle plate and drives the bolt to retract. The key feature is that the lock housing also includes a deadbolt mechanism, which comprises a lock cylinder rotating plate, a left-right sliding lock cylinder slider, a right-up sliding deadbolt plate, and a linkage connecting the lock cylinder slider and the deadbolt plate. The upper end of the linkage is rotatably connected to the left end of the lock cylinder slider, and the lower end of the linkage is rotatably connected to the lower end of the deadbolt plate. The linkage is tilted, with the left side higher than the right. The lock cylinder rotating plate rotates counterclockwise, causing the lock cylinder slider to move to the left and the upper end of the linkage to move to the left, while the lower end of the linkage moves upward, causing the deadbolt plate to move upward. This device has the advantages of simple structure, stable performance, and small footprint.

Description

Technical Field

[0001] This invention belongs to the field of door lock technology and relates to a magnetic lock that uses an inclined linkage to achieve deadbolt and safety. Technical Background

[0002] A magnetic lock is a type of door lock where a magnetic latch box is installed on the door frame and the door is fitted with a magnetic lock. The latch is made of a material that can be attracted by a magnet. When the door is closed, the latch on the door is attracted by the magnet in the latch box on the door frame, thus closing the door. Then, the latch is pulled back by the handle to open the door.

[0003] To achieve the functions of deadbolting and securing when the door is closed, existing magnetic locks require many internal linkages, resulting in a complex structure and numerous parts. Too many parts inevitably lead to structural instability and excessive space occupation, thus making the lock box too large. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a magnetic lock that uses an inclined linkage to achieve both locking and safety. This device has the advantages of simple structure, stable performance, and small footprint.

[0005] The objective of this invention is achieved as follows:

[0006] A magnetic lock that achieves deadbolt locking and safety via an inclined linkage includes a bolt, a handle plate, and a bolt drive that retracts the bolt by linking with the handle plate. The lock housing also contains a deadbolt mechanism, which includes a lock cylinder rotating plate, a left-right sliding lock cylinder slide plate, a right-up sliding deadbolt plate, and a linkage connecting the lock cylinder slide plate and the deadbolt plate. The upper end of the linkage is rotatably connected to the left end of the lock cylinder slide plate, and the lower end of the linkage is rotatably connected to the lower end of the deadbolt plate. The linkage is tilted, with the left side higher than the right. Due to the limitations of the left-right sliding of the lock cylinder slide plate, the up-down sliding of the deadbolt plate, and the tilting of the linkage, the lock cylinder rotating plate rotates counterclockwise, causing the lock cylinder slide plate to move to the left and the upper end of the linkage to move to the left, making the linkage more parallel. The lower end of the linkage moves upward, causing the deadbolt plate to move upward.

[0007] The middle part of the deadbolt plate extends to the left to form a deadbolt end, and the right end of the bolt is formed with an abutting end, and a deadbolt end mounting groove is formed below the abutting end; when deadbolt is locked, the deadbolt plate moves up and the deadbolt end abuts against the abutting end of the bolt; when unlocking, the deadbolt plate moves down and the bolt retracts, and the deadbolt end is set in the mounting groove.

[0008] A safety element is rotatably mounted between the handle plate and the deadbolt plate. The handle plate has a safety suppression end, and the safety element has a reset element. The reset element always tends to make the safety end of the safety element rotate clockwise and move away from the rotation range of the safety suppression end. The upper end of the deadbolt plate is the safety drive end. When deadbolt is engaged, after the deadbolt plate moves up, the safety drive end of the deadbolt plate drives the safety end of the safety element to rotate counterclockwise and abut against the lower part of the safety suppression end of the handle plate.

[0009] The right end of the lock cylinder slide plate is formed with a first rotating groove, and the lower end of the anti-lock plate is provided with a second rotating groove. The second rotating groove is located to the lower right of the first rotating groove. Both ends of the linkage are formed with rotating shafts, and the two rotating shafts are respectively rotatably arranged in the first rotating groove and the second rotating groove.

[0010] The locking plate is formed with a clearance groove for accommodating the linkage component.

[0011] The reset element is a torsion spring.

[0012] The latch drive is rotatably mounted inside the lock box. The upper end of the latch drive has a handle plate linkage end, and the handle plate has a handle plate drive end facing the latch drive. The handle plate linkage end abuts against the upper end of the handle plate drive end. The lower end of the latch drive has a latch drive end, and a sliding groove is formed on the latch. The latch drive end is slidably mounted in the sliding groove. After the latch extends, the latch drive end abuts against the right end of the sliding groove. When the handle plate rotates clockwise, it drives the latch drive to rotate counterclockwise, and the latch drive end of the latch drive causes the latch to retract.

[0013] The latch is also formed with a guide groove, and a guide post is provided in the guide groove. The guide post is fixed on the lock box, and buffer pads are provided at both ends of the guide groove.

[0014] The latch is also provided with a spring groove, and a spring is provided in the spring groove. A pre-tightening block is provided at the left end of the spring groove. The pre-tightening block is fixed on the lock box and always provides a pre-tightening force to the latch to retract into the lock box.

[0015] The lock cylinder slide plate is provided with a positioning bead, and the lock box is formed with two positioning holes that match the positioning bead.

[0016] The lock cylinder slide plate has a vertical groove corresponding to the position of the positioning bead, and a positioning spring is installed in the vertical groove. The positioning spring always provides force to keep the positioning bead stuck in the positioning hole.

[0017] A handle plate torsion spring is fitted on the handle plate.

[0018] The outstanding and beneficial technical effects of this invention compared to the prior art are as follows: This invention achieves the deadbolt function through the lock cylinder slide plate, deadbolt plate, and linkage component, and achieves the safety function through the lock cylinder slide plate, deadbolt plate, linkage component, and safety component. The simultaneous realization of both functions requires only four components. The reduction in components leads to structural stability and a smaller space occupation. Furthermore, the linkage method of the lock cylinder slide plate, deadbolt plate, and linkage component is a rotating connection (hinged connection), which makes it less likely for the components to fall off or loosen, thus making the structure more stable. 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 description of the embodiments or the prior art 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 structure of the present invention.

[0021] Figure 2 This is a diagram of the internal structure of the latch when it retracts.

[0022] Figure 3 This is a diagram of the internal structure when the device is locked.

[0023] Figure 4 This is a structural diagram of the back of the present invention.

[0024] Figure 5 Exploded view of the lock cylinder rotating plate, lock cylinder sliding plate and deadbolt plate when the linkage is retracted into the clearance groove.

[0025] Figure 6 This is a structural diagram of the handle plate, safety device, and latch drive.

[0026] 1-Lock tongue; 11-Abutting end; 12-Reverse locking end mounting groove; 13-Slide groove; 14-Guide groove; 15-Guide post; 16-Buffer pad; 17-Spring groove; 18-Spring; 19-Preload block;

[0027] 2-Handle plate; 21-Safety suppression end; 22-Handle plate drive end;

[0028] 3-Lock bolt drive component; 31-Handle plate linkage end; 32-Lock bolt drive end;

[0029] 4- Lock box; 41- Positioning hole;

[0030] 5-Lock cylinder rotating plate; 51-Protrusion;

[0031] 6-Lock cylinder slide plate; 61-First rotating groove; 62-Positioning bead; 63-Vertical groove; 64-Positioning spring; 65-First slider;

[0032] 7-Dock plate; 71-Second rotating groove; 72-Dock end; 73-Safety drive end; 74-Leaning groove; 75-Second slider

[0033] 8-Linkage component; 81-Rotating shaft;

[0034] 9-Safety element; 91-Safety end; 92-Torsion spring; 93-Notch. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0036] The up, down, left, and right directions mentioned in this patent application are... Figure 2 The direction it represents.

[0037] A magnetic lock with anti-locking and safety achieved by a tilting linkage includes a bolt 1, a handle plate 2, and a bolt drive 3 that retracts the bolt in conjunction with the handle plate. The lock housing 4 also includes an anti-locking mechanism, which comprises a lock cylinder rotating plate 5, a left-right sliding lock cylinder slide plate 6, a right-up sliding anti-lock plate 7, and a linkage 8 connecting the lock cylinder slide plate and the anti-lock plate. The upper end of the linkage 8 is rotatably connected to the left end of the lock cylinder slide plate 6, and the lower end of the linkage 8 is rotatably connected to the lower end of the anti-lock plate 7. The right end of the lock cylinder slide plate 6 has a first rotating groove 61, and the lower end of the anti-lock plate 7 has a... The second rotating groove 71 is located to the lower right of the first rotating groove 61. Both ends of the linkage 8 are formed with rotating shafts 81. The two rotating shafts 81 are respectively rotatably set in the first rotating groove 61 and the second rotating groove 71. The linkage 8 is tilted with the left side higher than the right side. Due to the limitation of the left and right sliding of the lock cylinder slide plate 6, the limitation of the up and down sliding of the anti-lock plate 7, and the limitation of the tilt setting of the linkage 8, the lock cylinder rotating plate 5 rotates counterclockwise, which drives the lock cylinder slide plate 6 to move to the left and drives the upper end of the linkage 8 to move to the left. The linkage 8 tends to be parallel, and the lower end of the linkage 8 moves upward, which drives the anti-lock plate 7 to move upward.

[0038] The lock cylinder slide plate 6 has a first slider 65 formed on it, and the lock box has a horizontal groove formed on it. The first slider 65 slides in the horizontal groove to restrict the left and right movement of the lock cylinder slide plate. The deadbolt plate 7 has a second slider 75 formed on it, and the lock box has a vertical groove formed on it. The second slider moves in the vertical groove to restrict the up and down movement of the deadbolt plate.

[0039] The middle part of the deadbolt plate 7 extends to the left to form a deadbolt end 72. The right end of the latch 1 is formed with an abutment end 11, and a deadbolt end mounting groove 12 is formed below the abutment end 11. When deadbolt is locked, the deadbolt plate 7 moves up and the deadbolt end 72 abuts against the abutment end 11 of the latch 1. When unlocking, the deadbolt plate 7 moves down and the latch 1 retracts, and the deadbolt end 72 is set in the mounting groove 12.

[0040] A safety element 9 is rotatably disposed between the handle plate 2 and the deadbolt plate 7. The handle plate 2 is provided with a safety suppression end 21, and the safety element 9 is provided with a torsion spring 92. The torsion spring 92 always gives the safety end 91 of the safety element a tendency to rotate clockwise and move away from the rotation range of the safety suppression end 21. The upper end of the deadbolt plate 7 is the safety drive end 73. When deadbolt is locked, after the deadbolt plate 7 moves up, the safety drive end 73 of the deadbolt plate drives the safety end 91 of the safety element to rotate counterclockwise and abut against the lower part of the safety suppression end 21 of the handle plate 2.

[0041] The safety element 9 has a notch 93 formed on it. The notch 93 matches the safety suppression end 21 and allows the safety suppression end 21 to pass through. The notch 93 is located on the left side of the safety end 91. When the safety end 91 leaves the rotation range of the safety suppression end 21, the handle plate 2 is rotated, and the safety suppression end 21 can rotate through the notch 93.

[0042] The function of the safety component 9 is to protect the bolt drive component 3. Without the safety component 9, after locking, the bolt 1 would be blocked by the deadbolt end 72 of the deadbolt plate and would not be able to unlock. Forcing the handle would damage the bolt drive component 3. Now, the safety component 9 is used to suppress the rotation of the handle plate 2, thereby protecting the bolt drive component 3.

[0043] The locking plate 7 has a relief groove 74 formed on it to accommodate the linkage component. Through the design of the relief groove 74, when the locking plate 7 moves down, the linkage component 8 can be partially retracted into the relief groove 74, thereby making the space occupancy rate smaller.

[0044] The latch drive 3 is rotatably mounted inside the lock housing 4. The upper end of the latch drive 3 has a handle plate linkage end 31. The handle plate 2 has a handle plate drive end 22 facing the latch drive 3, and the handle plate linkage end 31 abuts against the upper end of the handle plate drive end 22. The lower end of the latch drive 3 has a latch drive end 32. A sliding groove 13 is formed on the latch 1, and the latch drive end 32 is slidably mounted within the sliding groove 13. After the latch 1 extends, the latch drive end 32... When the handle plate 2 is pressed against the right end of the slide groove 13, it rotates clockwise, driving the latch drive 3 to rotate counterclockwise. The latch drive end 32 of the latch drive 3 drives the latch 1 to retract. After the latch retracts, the handle is released, and the handle plate 2 automatically resets under the action of the torsion spring, causing the handle plate 2 to rotate counterclockwise, driving the latch drive 3 to rotate clockwise. The latch drive end 32 slides from the right end of the slide groove 13 to the left end of the slide groove 13, so that the latch 1 can be smoothly sucked out when the door is closed next time.

[0045] The latch 1 is also formed with a guide groove 14, and a guide post 15 is provided in the guide groove 14. The guide post 15 is fixed on the lock box 4. Buffer pads 16 are provided at both ends of the guide groove 14. The guide groove 14 and the guide post 15 play a guiding and limiting role, so that the movement of the latch is smooth and the range of movement of the latch is limited. The buffer pads 16 can achieve the effect of buffering and noise reduction.

[0046] The latch 1 is also provided with a spring groove 17, and a spring 18 is provided in the spring groove 17. A pre-tightening block 19 is provided at the left end of the spring groove 17. The pre-tightening block 19 is fixed on the lock box 4. The pre-tightening block 19 always provides a pre-tightening force to the latch 1 to retract into the lock box 4. The pre-tightening force is less than the attraction force of the external magnet. Its main function is to ensure that the latch 1 is retracted into the lock box 4 when the door is open, so as to prevent the latch 1 from being partially extended out of the lock box 4 due to accidental vibration or other situations. If the door is closed in this state, the latch 1 will be damaged.

[0047] The lock cylinder slide plate 6 is provided with a positioning bead 62, and the lock box 4 is formed with two positioning holes 41 that match the positioning bead.

[0048] The lock cylinder slide plate 6 has a longitudinal groove 63 at the position corresponding to the positioning bead 62. A positioning spring 64 is installed in the longitudinal groove 63. The positioning spring 64 always provides a force to keep the positioning bead 62 locked in the positioning hole 41.

[0049] Working principle:

[0050] 1. When the door is open, the latch 1 is located inside the lock box 4, the deadbolt end 72 of the deadbolt plate 7 is located in the mounting groove 12 of the latch 1, the tilting linkage 8 is partially retracted into the clearance groove 74, and the safety end 91 of the safety component 9 leaves the rotation range of the safety suppression end 21.

[0051] 2. When locking the door, after the door and door frame are aligned, the latch 1 is attracted out by the magnet in the latch box on the door frame;

[0052] 3. When deadbolted (and simultaneously engaged), deadbolting is achieved using the key. The key rotates the lock cylinder plate 5 counterclockwise. The protrusion 51 of the lock cylinder plate moves the lock cylinder slide plate 6 to the left and moves the upper end of the linkage 8 to the left. The linkage 8 tends to be parallel, and the lower end of the linkage 8 moves upward, causing the deadbolt plate 7 to move upward. After the deadbolt plate 7 moves upward, the deadbolt end 72 abuts against the locking end 11 of the bolt, thus achieving deadbolting. After the deadbolt plate 7 moves upward, the safety drive end 73 of the deadbolt plate 7 drives the safety end 91 of the safety element to rotate counterclockwise and abut against the safety suppression end 21 of the handle plate 2.

[0053] 4. When unlocking (and simultaneously disengaging the safety), the key is used to unlock the lock cylinder plate 5. The key rotates the lock cylinder plate 5 clockwise, and the protrusion 51 of the lock cylinder plate moves the lock cylinder slide plate 6 to the right and moves the upper end of the linkage 8 to the right. The lower end of the linkage 8 moves down, which moves the deadbolt plate 7 down. The deadbolt end 72 no longer abuts against the locking tongue contact end 11, thus unlocking the lock. After the deadbolt plate 7 moves down, the safety drive end 73 of the deadbolt plate moves down, and the safety element 9 rotates clockwise through the torsion spring 92. The safety end 91 rotates clockwise and moves away from the range of the safety suppression end 21.

[0054] 5. After unlocking, the door can be opened by turning the handle. Turning the handle causes the handle plate 2 to rotate clockwise, which in turn drives the bolt drive 3 to rotate counterclockwise. The bolt drive end 32 of the bolt drive 3 drives the bolt 1 to retract. After the bolt retracts, the door can be opened.

[0055] This invention features a simple structure, stable performance, and small footprint.

[0056] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A magnet lock for anti-locking and securing by a tilt linkage, comprising a lock case, a bolt, a handle plate, and a bolt driving member linked with the handle plate and driving the bolt to retract, characterized in that, The lock box is further provided with a reverse locking mechanism, which comprises a lock cylinder rotating plate, left and right sliding lock cylinder sliding plates, up and down sliding reverse locking plates and a linkage connecting the lock cylinder sliding plates and the reverse locking plates, the upper end of the linkage is rotationally connected with the left end of the lock cylinder sliding plate, the lower end of the linkage is rotationally connected with the lower end of the reverse locking plate, and the linkage is obliquely arranged with the left end being higher than the right end; the lock cylinder rotating plate rotates counterclockwise, drives the lock cylinder sliding plate to move leftward, drives the upper end of the linkage to move leftward, drives the lower end of the linkage to move upward, and drives the reverse locking plate to move upward. The middle part of the reverse locking plate extends leftward to form a reverse locking end, the right end of the lock tongue is formed with an abutting end, and a reverse locking end accommodating groove is formed below the abutting end; when reverse locking, the reverse locking end of the reverse locking plate abuts against the abutting end of the lock tongue after the reverse locking plate moves upward; when unlocking, the lock tongue is retracted, and the reverse locking end is arranged in the accommodating groove after the reverse locking plate moves downward. A safety member is further rotationally arranged between the handle plate and the reverse locking plate, the handle plate is provided with a safety inhibiting end, the safety member is provided with a reset member, the reset member always gives the safety end of the safety member a tendency to rotate clockwise and move away from the rotating range of the safety inhibiting end; the upper end of the reverse locking plate is a safety driving end, the safety driving end of the reverse locking plate drives the safety end of the safety member to rotate counterclockwise and abut against the safety inhibiting end below the handle plate after the reverse locking plate moves upward during reverse locking. The right end of the lock cylinder sliding plate is formed with a first rotating groove, the lower end of the reverse locking plate is provided with a second rotating groove, the second rotating groove is located below and right of the first rotating groove, and both ends of the linkage are formed with rotating shafts, and the two rotating shafts are rotationally arranged in the first rotating groove and the second rotating groove respectively. The handle plate is sleeved with a handle plate torsional spring.

2. The magnet lock with anti-locking and safety function realized by the tilt linkage according to claim 1, characterized in that: The reverse locking plate is formed with a giving-up groove for accommodating the linkage.

3. The magnet lock of claim 2, wherein: The reset member is a torsional spring.

4. The magnet lock with anti-locking and safety function realized by the inclined linkage according to claim 1, characterized in that: The lock tongue driving member is rotationally arranged in the lock box, the upper end of the lock tongue driving member is formed with a handle plate linkage end, the handle plate is provided with a handle plate driving end facing the lock tongue driving member, and the handle plate linkage end abuts against the upper end of the handle plate driving end; the lower end of the lock tongue driving member is formed with a lock tongue driving end, the lock tongue is formed with a sliding groove, and the lock tongue driving end is slidingly arranged in the sliding groove; after the lock tongue is extended, the lock tongue driving end abuts against the right end of the sliding groove, the handle plate rotates clockwise, drives the lock tongue driving member to rotate counterclockwise, and the lock tongue driving end of the lock tongue driving member drives the lock tongue to retract.

5. The magnet lock with anti-locking and safety function realized by the tilt linkage according to claim 1, characterized in that: The lock tongue is further formed with a guide groove, a guide column is arranged in the guide groove, the guide column is fixed on the lock box, and both ends of the guide groove are provided with buffer pads respectively.

6. The magnet lock with anti-locking and safety function realized by the tilt linkage according to claim 1, characterized in that: The lock tongue is further provided with a spring groove, a spring is arranged in the spring groove, the left end of the spring groove is provided with a pre-tightening block, the pre-tightening block is fixed on the lock box, and the pre-tightening block always gives the lock tongue a pre-tightening force to retract into the lock box.

7. The magnet lock with anti-locking and safety function realized by the tilt linkage according to claim 6, characterized in that: The lock cylinder sliding plate is provided with a positioning bead, and the lock box is formed with two positioning holes matched with the positioning bead.

8. The magnet lock with anti-locking and safety function realized by the tilt linkage according to claim 7, characterized in that: The lock cylinder sliding plate is provided with a vertical groove at a position corresponding to the positioning bead, a positioning spring is arranged in the vertical groove, and the positioning spring always gives the positioning bead a force to be clamped in the positioning hole.

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