Magnetic attraction idling structure lock cylinder capable of preventing shifting wheel from rotating after violent breaking

Abstract

The magnetic attraction idling structure lock cylinder capable of preventing the shifting wheel from rotating after violent breaking comprises a lock cylinder body, and lock liners are arranged on the two sides of the lock cylinder body respectively. A transmission piece is fixedly arranged at the front end of the lock cylinder, and a notch is formed in the front end of the transmission piece. A dial wheel assembly is arranged in the middle of the lock cylinder body and comprises a dial wheel, and grooves are formed in the upper side and the lower side of the inner wall of the dial wheel respectively. A first dial wheel inner rotor and a second dial wheel inner rotor are arranged on the two sides of the dial wheel respectively, and transverse grooves and vertical grooves are formed in the first dial wheel inner rotor and the second dial wheel inner rotor; the upper ends and the lower ends of the notches in the front ends of the transmission pieces on the two sides extend into the first shifting wheel inner rotor and the second shifting wheel inner rotor correspondingly and are located in the vertical grooves. A strong magnetic block is arranged in the transverse groove; the upper end and the lower end of the notch are respectively provided with an inner rotor check block, and the upper end of the inner rotor check block is located in the groove of the shifting wheel. The lock cylinder can be prevented from being forcibly unlocked by breaking off the lock cylinder, and has the advantage of being good in safety.

Description

Technical Field

[0001] This invention relates to the field of lock cylinder technology, and in particular to a magnetically attracted lock cylinder structure that prevents the dial from rotating after being violently broken. Background Technology

[0002] Existing single-keyhole lock cylinders generally consist of two cylinders, with two corresponding keyholes on the lock housing. The cylinder on the outside has a keyhole for unlocking from the outside, while the cylinder on the inside has a handle connected to it. If the cylinder on the outside is forcibly removed, the unlocking fork of the lock cylinder will typically be exposed, allowing criminals to use it to unlock the door. Furthermore, if a person inside cannot open the door after the lock cylinder is broken, they could be trapped inside. Summary of the Invention

[0003] The purpose of this invention is to provide a magnetically attracted, free-spinning lock cylinder that prevents the dial from rotating after being forcibly broken. This invention allows the rotor inside the dial to be attracted by a strong magnet after the outer lock cylinder is damaged, thus creating a free-spinning effect. This prevents attempts to forcibly unlock the lock by breaking the lock cylinder. Furthermore, damage to the outer lock cylinder does not affect the inner lock cylinder, avoiding the possibility of the door being unable to be opened from the inside, thus offering superior security.

[0004] The technical solution of the present invention: A magnetically attracted lock cylinder with a free-spinning structure that prevents the dial from rotating after violent breakage, comprising a lock cylinder body, with lock cylinders on both sides of the lock cylinder body; a transmission plate fixedly provided at the front end of the lock cylinder, the transmission plate having a notch at its front end; a dial assembly provided in the middle of the lock cylinder body, the dial assembly including a dial wheel, the upper and lower sides of the inner wall of the dial wheel each having a groove; a first dial wheel inner rotor and a second dial wheel inner rotor respectively provided on both sides of the dial wheel, the first dial wheel inner rotor and the second dial wheel inner rotor each having a horizontal groove and a vertical groove; the upper end and the lower end of the vertical groove are respectively connected to the corresponding groove; the upper and lower ends of the notches at the front ends of the transmission plates on both sides extend into the corresponding first dial wheel inner rotor and the second dial wheel inner rotor respectively and are located in the vertical groove; a strong magnetic block is provided in the horizontal groove, and the strong magnetic block is located between the upper and lower ends of the notch; an inner rotor stop block is provided at the upper end and the lower end of the notch respectively, the upper end of the inner rotor stop block being located in the groove of the dial wheel.

[0005] The aforementioned magnetic lock cylinder with a free-spinning structure that prevents the dial from rotating after violent breakage has a fixing plate at the front end of the lock cylinder; the lock cylinder and the transmission plate are assembled and fixed by the fixing plate and screws.

[0006] The aforementioned magnetic lock cylinder that prevents the dial from rotating after violent breakage has a recessed platform on the end face of the rotor inside the first dial and a flange embedded in the recessed platform on the end face of the rotor inside the second dial.

[0007] The aforementioned magnetic lock cylinder with a free-spinning structure that prevents the dial wheel from rotating after violent breakage has an inner rotor stop block that is stepped. The lower end of the step of the inner rotor stop block contacts the surface of the transmission plate, and the upper end of the step of the inner rotor stop block is located in the groove of the dial wheel.

[0008] The aforementioned magnetic lock cylinder with a free-spinning structure that prevents the dial from rotating after violent breakage has lock cylinder body connecting blocks located on both sides of the dial. The dial assembly is connected to the lock cylinder via the lock cylinder body connecting blocks. The lock cylinder body connecting blocks and the lock cylinder body are also provided with retaining rings.

[0009] The aforementioned magnetic lock cylinder with a free-spinning structure that prevents the dial from rotating after being violently broken has a positioning mechanism formed by a positioning spring and a steel ball on the connecting block of the lock cylinder body. The front end of the steel ball is embedded in the end face groove of the dial.

[0010] The aforementioned magnetic lock cylinder structure, which prevents the dial from rotating freely after being violently broken, has the lock cylinder body connected to the lock cylinder body connecting block via multiple pins; the lock cylinder body connecting block is connected to the dial via a snap-fit ​​mechanism.

[0011] The aforementioned magnetic lock cylinder with a free-spinning structure that prevents the dial from rotating after being violently broken has a V-shaped opening at the upper end of the lock cylinder body, and a V-shaped end on the connecting block of the lock cylinder body that matches the V-shaped opening.

[0012] The aforementioned magnetic lock cylinder, which prevents the dial from rotating freely after being violently broken, has a spring sleeved on the transmission plate.

[0013] Compared to existing technologies, this invention, when the lock cylinder is intact, separates the inner rotor stop and the strong magnetic block on both sides by the transmission plate. Turning the key rotates the transmission plate, which in turn rotates the inner rotors of the first and second dial wheels. The rotation of the first and second dial wheel inner rotors, through the upper and lower inner rotor stops, further rotates the dial wheel, thus opening and closing the lock. However, when the lock cylinder is forcibly broken, the broken cylinder will pull out the cylinder and transmission plate on the same side. Once the transmission plate is pulled out, the inner rotor stops on the corresponding end of the dial wheel, without the obstruction of the transmission plate, will be instantly attracted by the strong magnetic block, causing the upper and lower inner rotor stops to detach from the grooves on the inner wall of the dial wheel, thus losing their function of driving the dial wheel. At this point, the corresponding inner rotor of the dial wheel will only be able to spin freely, thus limiting the attempt to break the outer lock cylinder to rotate the dial wheel and unlock the door. Simultaneously, because the cylinder of the inner lock cylinder is undamaged, the inner lock cylinder can still function normally even after the outer lock cylinder is broken. Therefore, this invention can prevent forced unlocking by breaking the lock cylinder. Furthermore, damage to the outer lock cylinder will not affect the inner lock cylinder, avoiding the consequence of the door being unable to be opened from the inside, thus offering excellent security. In addition, the first and second inner rotors of this invention are designed with concave-convex mating structures to ensure that either side remains coaxial with the other during rotation. Furthermore, the inner rotor stop is designed as a stepped structure. The stepped design allows the inner rotor stop to be attracted downwards by a strong magnet when the outer lock cylinder is broken and the transmission plate is pulled out. Simultaneously, it is attracted inwards by a strong magnet on the other end of the first or second inner rotor, causing the larger end of the stepped inner rotor stop to be sucked into the groove of the concave-convex mating end of the first and second inner rotors and locked in place. This prevents attempts to pry the inner rotor stop upwards with a sharp object after the outer lock cylinder is broken and the transmission plate is pulled out. Furthermore, this invention adds multiple positioning mechanisms composed of steel balls and springs between the lock cylinder connecting block and the intermediate dial wheel. These positioning mechanisms prevent the dial wheel from rotating under gravity after the first or second inner rotor is pushed in when the outdoor lock cylinder is broken, thus preventing the indoor portion of the first or second inner rotor from being pushed into the dial wheel and causing the indoor lock to be unable to unlock. Furthermore, this invention adds a V-shaped connection at the upper end of the lock cylinder connecting block and the lock cylinder. This prevents the transmission plate from rotating the broken lock cylinder before the first or second inner rotor is fully pulled out, allowing the lock to be unlocked. With the addition of the V-shaped connection, the broken outdoor lock cylinder only experiences an outward pulling effect, preventing rotation before the transmission plate is fully pulled out of the first or second inner rotor. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the integrated structure of the lock cylinder and the transmission plate;

[0016] Figure 3 This is a schematic diagram of the lock cylinder structure;

[0017] Figure 4 This is a schematic diagram of another embodiment of the present invention;

[0018] Figure 5 This is a schematic diagram of the interaction between the rotor and the transmission plate inside the first gear wheel;

[0019] Figure 6 These are schematic diagrams of the rotor inside the first and second gear wheels.

[0020] Figure 7 This is a schematic diagram showing the engagement of the rotor inside the first gear wheel and the rotor inside the second gear wheel;

[0021] Figure 8 This is a schematic diagram of the structure of the lock cylinder connecting block, the lock cylinder body, and the dial wheel.

[0022] Figure Labels

[0023] 1. Lock cylinder connecting block; 2. First gear inner rotor; 3. Inner rotor stop block; 4. Gear; 5. Second gear inner rotor; 6. Lock cylinder; 7. Lock cylinder body; 8. Transmission plate; 9. Steel ball; 10. Positioning spring; 11. Snap ring; 12. Notch; 13. Fixing plate; 14. Screw; 15. Pin; 16. Spring; 17. Groove; 18. Strong magnet; 19. Vertical groove; 20. Flange; 21. V-shaped opening; 22. V-shaped end; 23. Recessed platform; 24. Horizontal groove. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0025] Example: A magnetic lock cylinder with a free-spinning structure that prevents the dial 4 from rotating after being violently broken, such as... Figure 1-3 As shown, the lock includes a lock cylinder body 7, with lock cylinders 6 on both sides of the lock cylinder body 7; a transmission plate 8 is fixedly provided at the front end of the lock cylinder 6, the front end of the transmission plate 8 has a notch 12, and a spring 16 is sleeved on the transmission plate 8; a dial assembly is provided in the middle of the lock cylinder body 7, such as... Figure 3-6As shown, the dial assembly includes a dial 4, with grooves 17 on both the upper and lower sides of its inner wall; a first inner rotor 2 and a second inner rotor 5 are respectively provided on both sides of the dial 4, and both the first inner rotor 2 and the second inner rotor 5 are provided with horizontal grooves 24 and vertical grooves 19; the upper and lower ends of the vertical grooves 19 are respectively connected to the corresponding grooves 17; the upper and lower ends of the front end recesses 12 of the transmission plates 8 on both sides extend into the corresponding first inner rotor 2 and second inner rotor 5 and are located in the vertical grooves 19; a strong magnetic block 18 is provided in the horizontal groove 24, and the strong magnetic block 18 is located between the upper and lower ends of the recess 12; an inner rotor stop block 3 is provided at the upper and lower ends of the recess 12, and the upper end of the inner rotor stop block 3 is located in the groove 17 of the dial 4. In this invention, with the lock cylinder 7 intact, the inner rotor stop 3 and the strong magnetic block 18 are separated on both sides by the transmission plate 8. At this time, the rotation of the key will drive the transmission plate 8 to rotate, and the rotation of the transmission plate 8 will drive the inner rotor 2 of the first dial wheel and the inner rotor 5 of the second dial wheel to rotate. The rotation of the inner rotor 2 of the first dial wheel and the inner rotor 5 of the second dial wheel will drive the dial wheel 4 to rotate through the upper and lower inner rotor stop 3, thereby realizing the opening and closing of the door lock. However, when the lock cylinder 7 is forcibly broken, the broken lock cylinder 7 will pull out the lock cylinder 6 and the transmission plate 8 on the same side. After the transmission plate 8 is pulled out, the inner rotor blocks 3 above and below the first inner rotor 2 or the second inner rotor 5 of the corresponding end will be instantly attracted by the strong magnetic block 18 without the obstruction of the transmission plate 8. This will cause the upper and lower inner rotor blocks 3 to disengage from the groove 17 on the inner wall of the dial 4, thus losing their function of driving the dial 4 to rotate. At this time, the inner rotor of the corresponding dial 4 will become a state where it can only rotate freely, thereby restricting the attempt to break the outdoor lock cylinder 7 to achieve the purpose of rotating the dial 4 to unlock. At the same time, since the lock cylinder 6 of the indoor lock cylinder 7 is not damaged, it is ensured that the indoor lock cylinder can still work normally after the outdoor lock cylinder is broken.

[0026] Preferred, such as Figure 1 As shown, a fixing plate 13 is provided at the front end of the lock cylinder 6; the lock cylinder 6 and the transmission plate 8 are assembled and fixed by the fixing plate 13 and screws 14. In this invention, the lock cylinder 6 and the transmission plate 8 are assembled into an integral component by the fixing plate 13 and screws 14. The function of this integral component is that when one end of the lock cylinder 7 is forcibly broken, the integral component is pulled out along with the broken part of the lock cylinder 7, thereby achieving the effect of free rotation of the internal components of the dial rotor.

[0027] Preferred, such as Figure 6 As shown, the end face of the first inner rotor 2 is provided with a recess 23, and the end face of the second inner rotor 5 is provided with a flange 20 embedded in the recess 23. The recess and flange of the first inner rotor 2 and the second inner rotor are fitted together to ensure that either side remains coaxial with the other side when rotating.

[0028] Preferred, such as Figure 7 As shown, the inner rotor stop 3 is stepped, with the lower end of the step of the inner rotor stop 3 contacting the surface of the transmission plate 8, and the upper end of the step of the inner rotor stop 3 located in the groove 17 of the dial wheel 4. The present invention designs the inner rotor stop 3 as stepped. The step design serves to ensure that when the external lock cylinder is broken and the transmission plate 8 is pulled out, the inner rotor stop 3 is attracted downwards by the strong magnet 18, and simultaneously attracted inwards by the strong magnet 18 on the inner rotor 2 of the first dial wheel or the inner rotor 5 of the second dial wheel. This causes the larger end of the step of the inner rotor stop 3 to be sucked into the groove of the mating end of the inner rotor 2 of the first dial wheel and the inner rotor 5 of the second dial wheel, thus locking it in place. This prevents the attempt to pry the inner rotor stop 3 upwards with a sharp object after the external lock cylinder is broken and the transmission plate 8 is pulled out.

[0029] Preferred, such as Figure 1 As shown, the lock cylinder body 7 is provided with lock cylinder body connecting blocks 1 located on both sides of the dial wheel 4. The dial wheel assembly and the lock cylinder 6 are connected via the lock cylinder body connecting blocks 1. The lock cylinder body connecting blocks 1 and the lock cylinder body 7 are also provided with retaining rings 11. The lock cylinder body connecting blocks 1 are used to connect the dial wheel assembly, the lock cylinder body 7, the lock cylinder 6, and the transmission plate 8. At the same time, they also play a role in preventing drilling and prying after the lock cylinder body 7 is broken, thus protecting the safety of the dial wheel assembly.

[0030] Preferred, such as Figure 1 As shown, the lock cylinder connecting block 1 is provided with a positioning mechanism formed by a positioning spring 10 and a steel ball 9, with the front end of the steel ball 9 embedded in the end face groove of the dial wheel 4. The present invention adds multiple sets of positioning mechanisms composed of steel balls 9 and positioning springs 10 between the lock cylinder connecting block 1 and the intermediate dial wheel 4. This positioning mechanism can prevent the dial wheel 4 from rotating under gravity after the first or second inner rotor of the dial wheel is pushed forward when the outdoor lock cylinder is broken, thus preventing the first or second inner rotor of the indoor part from being pushed into the dial wheel 4 when the indoor lock needs to be unlocked, resulting in the indoor lock being unable to be unlocked.

[0031] Preferred, such as Figure 1 As shown, the lock cylinder body 7 is connected to the lock cylinder body connecting block 1 by six high-strength pins 15; the lock cylinder body connecting block 1 is connected to the dial wheel 4 by a snap-fit ​​method, so that the dial wheel assembly, the left and right lock cylinder body connecting blocks 1 and the lock cylinder body 7 are assembled into one unit.

[0032] Preferred, such as Figure 4 and Figure 8As shown, the upper end of the lock cylinder body 7 is provided with a V-shaped opening 21, and the lock cylinder body connecting block 1 is provided with a V-shaped end 22 that cooperates with the V-shaped opening 21. This invention adds a V-shaped connection to the upper end connection between the lock cylinder body connecting block 1 and the lock cylinder body 7. The purpose is to prevent the internal transmission plate 8 from rotating the broken lock cylinder before it is fully pulled out of the first or second inner rotor, thus enabling unlocking. With the addition of the V-shaped connection, the broken external lock cylinder can only be pulled outwards, preventing it from being rotated before the transmission plate 8 is fully pulled out of the first or second inner rotor.

[0033] In summary, this invention can prevent forced unlocking by breaking the lock cylinder, and the damage to the outer lock cylinder will not affect the inner lock cylinder, thus avoiding the consequence of the door being unable to be opened from the inside. It has the advantage of good security.

Claims

1. A magnetic lock cylinder with a free-spinning structure that prevents the dial from rotating after violent breakage, comprising a lock cylinder body (7), wherein lock cylinder shells (6) are respectively provided on both sides of the lock cylinder body (7); characterized in that: The front end of the lock cylinder (6) is fixedly provided with a transmission plate (8), and the front end of the transmission plate (8) has a notch (12); the middle part of the lock cylinder body (7) is provided with a dial assembly, the dial assembly includes a dial (4), and the inner wall of the dial (4) is provided with grooves (17) on the upper and lower sides; the two sides of the dial (5) are respectively provided with a first dial inner rotor (2) and a second dial inner rotor (5), and both the first dial inner rotor (2) and the second dial inner rotor (5) are provided with a horizontal groove (24) and a vertical groove (19); the upper end and the lower end of the vertical groove (19) are provided with a horizontal groove (24) and a vertical groove (19) respectively. Each is connected to the corresponding groove (17); the upper and lower ends of the front end notch (12) of the transmission plates (8) on both sides extend into the corresponding first inner rotor (2) and second inner rotor (5) of the gear wheel and are located in the vertical groove (19); a strong magnetic block (18) is provided in the horizontal groove (24) and the strong magnetic block (18) is located between the upper and lower ends of the notch (12); the upper end and the lower end of the notch (12) are respectively provided with inner rotor stop blocks (3), and the upper end of the inner rotor stop block (3) is located in the groove (17) of the gear wheel (4).

2. The magnetic locking cylinder with a free-spinning structure that prevents the dial from rotating after violent breakage, as described in claim 1, is characterized in that: The front end of the lock cylinder (6) is provided with a fixing plate (13); the lock cylinder (6) and the transmission plate (8) are assembled and fixed by the fixing plate (13) and screws (14).

3. The magnetic locking cylinder with a free-spinning structure that prevents the dial from rotating after violent breakage, as described in claim 1, is characterized in that: The end face of the rotor (2) inside the first dial wheel is provided with a recess (23), and the end face of the rotor (5) inside the second dial wheel is provided with a flange (20) embedded in the recess (23).

4. The magnetically attracted lock cylinder with a free-spinning structure that prevents the dial from rotating after violent breakage, as described in claim 3, is characterized in that: The inner rotor stop (3) is stepped, with the lower end of the step of the inner rotor stop (3) in contact with the surface of the transmission plate (8), and the upper end of the step of the inner rotor stop (3) located in the groove (17) of the dial wheel (4).

5. The magnetic lock cylinder with a free-spinning structure that prevents the dial from rotating after violent breakage, as described in claim 1, is characterized in that: The lock cylinder body (7) is provided with lock cylinder body connecting blocks (1) located on both sides of the dial wheel (4), and the dial wheel assembly is connected to the lock cylinder (6) via the lock cylinder body connecting blocks (1); the lock cylinder body connecting blocks (1) and the lock cylinder body (7) are also provided with retaining rings (11).

6. The magnetic locking cylinder with a free-spinning structure that prevents the dial from rotating after violent breakage, as described in claim 5, is characterized in that: The lock cylinder connecting block (1) is provided with a positioning mechanism formed by a positioning spring (10) and a steel ball (9), with the front end of the steel ball (9) embedded in the end face groove of the dial wheel (4).

7. The magnetic locking cylinder with a free-spinning structure that prevents the dial from rotating after violent breakage, as described in claim 5, is characterized in that: The lock cylinder (7) is connected to the lock cylinder connecting block (1) via multiple pins (15); the lock cylinder connecting block (1) is connected to the dial (4) via a snap-fit ​​mechanism.

8. The magnetic lock cylinder with a free-spinning structure that prevents the dial from rotating after violent breakage, as described in claim 7, is characterized in that: The upper end of the lock cylinder (7) is provided with a V-shaped opening (21), and the lock cylinder connecting block (1) is provided with a V-shaped end (22) that cooperates with the V-shaped opening.

9. The magnetic lock cylinder with a free-spinning structure that prevents the dial from rotating after violent breakage, as described in claim 1, is characterized in that: A spring (16) is fitted onto the transmission plate (8).

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