A lock cylinder structure

Abstract

The utility model discloses a lock cylinder structure, specifically relates to the technical field of lock cylinder structure, including the bottom plate, be provided with linkage protection subassembly on the bottom plate, the linkage protection subassembly includes the cover plate of setting at the bottom plate top, be provided with the square tongue on the bottom plate, the square tongue is set with brake torsional spring, and the top one side of square tongue is provided with the push piece. The utility model discloses through setting linkage protection subassembly and square core, bevel tongue subassembly and form multilevel mechanical linkage mechanism: need simultaneously drive square core when unlocking and drive the lever control bevel tongue subassembly to retract, and through square core torsional spring body, transmission piece, brake piece etc. a series of linkage components drive square tongue to retract, form the double locking cooperation of bevel tongue and square tongue.

Description

Technical Field

[0001] This utility model relates to the field of lock cylinder structure technology, and more specifically, to a lock cylinder structure. Background Technology

[0002] The lock cylinder structure is an important component of a door lock, including the lock body. Inside the lock body, there is a key slot, a pin tumbler assembly, and an unlocking dial. When the key is inserted into the key slot, the teeth on the key engage with the pin tumbler assembly, and turning the key drives the unlocking dial to move, thereby achieving the purpose of unlocking.

[0003] Currently, in existing technologies, the front locking pin of the lock cylinder is engaged with the key's teeth through a pin-type component or a flap-type component. When the correct key is inserted, the key's teeth match the pin-type component or flap-type component to unlock the lock. This method results in a low security level for the lock cylinder, making it easy for criminals to open it technically. Therefore, a lock cylinder structure with better security performance is needed. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a lock cylinder structure, which aims to solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a lock cylinder structure, including a base plate, wherein a linkage protection component is provided on the base plate;

[0006] The linkage protection component includes a cover plate set on the top of the base plate, a square tongue set on the base plate, a brake torsion spring sleeved on the square tongue, a push plate set on one side of the top of the square tongue, a brake plate set on the top of the push plate, and a transmission plate set on the top of the brake plate.

[0007] A square core is provided at one end of the square tongue.

[0008] Optionally, in one possible implementation, a toggle lever is provided on the square core, a square core torsion spring is provided at the top of the square core, one end of the square core torsion spring abuts against the end of the transmission plate, one end of the brake torsion spring abuts against the push plate, a slanted tongue assembly is provided on one side of the square core, the slanted tongue assembly is embedded in the base plate, and one end of the slanted tongue assembly abuts against the end of the toggle lever, a panel assembly is provided between the base plate and the cover plate, and the base plate and the cover plate are detachably connected to the panel assembly by bolts, the transmission plate and the brake plate are stacked, and the transmission plate and the brake plate are rotatably connected;

[0009] The technical effects and advantages of this utility model are as follows:

[0010] By setting up a multi-level mechanical linkage mechanism with the linkage protection component, the square core, and the oblique tongue component: when unlocking, the square core needs to be driven to drive the lever to control the oblique tongue component to retract, and the square tongue is driven to retract through a series of linkage components such as the square core torsion spring, transmission plate, and brake plate, forming a double locking cooperation between the oblique tongue and the square tongue.

[0011] Furthermore, the overlapping rotation of the transmission plate and the brake plate, and the contact reset of the brake torsion spring and the push plate, mean that the forced operation of a single component cannot complete the unlocking, which greatly increases the complexity of technical cracking and structurally improves the lock cylinder's anti-cracking capability.

[0012] One end of the brake torsion spring abuts against the push plate, and the other end of the square core torsion spring abuts against the transmission plate. The elastic potential energy of the torsion spring ensures that each component can be accurately reset after unlocking, avoiding lock cylinder jamming or malfunction due to reset failure. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] The attached diagram is labeled as follows: 1. Base plate; 2. Cover plate; 3. Square tongue; 4. Brake torsion spring; 5. Push plate; 6. Brake plate; 7. Transmission plate; 8. Actuating rod; 9. Square core; 10. Square core torsion spring body; 11. Slanted tongue assembly; 12. Panel assembly. Detailed Implementation

[0016] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] This embodiment aims to provide a specific lock cylinder structure implementation method, which solves the problems of existing lock cylinders being easily opened by technology and having a low security factor through the coordinated cooperation of the linkage protection components and various parts.

[0018] The base plate 1 is provided with sliding grooves and positioning holes for installing various components; the cover plate 2 is adapted to the size of the base plate 1, and a panel assembly 12 is provided between the two.

[0019] Square tongue 3: It has a rectangular structure with a square locking end at one end and a keyway at the other end. It can slide back and forth along the horizontal groove on the base plate 1 by cooperating with one end of the square core 9 through the flat key, so as to realize the locking and unlocking action.

[0020] Braking torsion spring 4: It is sleeved on the shaft part of the square tongue 3 near the keyway. One end of it is fixed to the protrusion of the square tongue 3 by a hook, and the other end abuts against the side of the push plate 5 for pushing the plate 5 to reset.

[0021] Push plate 5: Hinged on the top side of the square tongue 3, it can rotate around the pin, and its top edge contacts the bottom of the brake plate 6.

[0022] Brake pad 6: It is a rectangular plate structure that is rotatably connected to push plate 5 via a rotating shaft. Its top is in contact with the bottom of transmission plate 7, and its edge is provided with an arc-shaped limiting groove to limit the rotation angle of transmission plate 7.

[0023] Transmission plate 7: It is stacked with brake plate 6 and is rotatably connected through the same shaft. Its end extends to square core torsion spring body 10 and can drive brake plate 6 to rotate under the force of square core torsion spring body 10.

[0024] Square core 9: One end of it is connected to square tongue 3, and the other end is used to cooperate with key drive mechanism. A toggle lever 8 is welded in the middle.

[0025] Toggle lever 8: Rotatably connected to square core 9, it can push the oblique tongue assembly 11 when it rotates with square core 9.

[0026] Square core torsion spring body 10: It is sleeved on the top of the square core 9. One end of it is fixed to the square core 9 through a slot, and the other end abuts against the end of the transmission plate 7. When the square core 9 rotates, the torsion spring is twisted to generate a reset elastic force, which drives the transmission plate 7 to reset.

[0027] The latch assembly 11 includes a latch body, a return spring, and a guide slider: the guide slider is embedded in the slide rail of the base plate 1 and can slide along the slide rail; one end of the return spring is connected to the guide slider, and the other end is fixed to a protrusion on the base plate 1, for automatic reset of the latch body. The rear end of the latch body abuts against the end of the actuating lever 8 and can retract under the push of the actuating lever 8;

[0028] The specific working principle is as follows: when the matching key is inserted and turned, the key drives the square core 9 to rotate clockwise:

[0029] The square core 9 drives the toggle lever 8 to rotate synchronously. The end of the toggle lever 8 pushes the guide slider of the tongue assembly 11, causing the tongue body to overcome the elastic force of the return spring and retract along the slide, disengaging from the lock hole of the door frame.

[0030] At the same time, when the square core 9 rotates, it twists the square core torsion spring 10, and the square core torsion spring 10 generates elastic potential energy, which abuts against the end of the transmission plate 7, driving the transmission plate 7 to rotate around the rotating shaft.

[0031] The transmission plate 7 drives the brake plate 6 to rotate, and the brake plate 6 pushes the pusher plate 5 to rotate around the pin. The pusher plate 5 overcomes the elastic force of the brake torsion spring 4 and drives the square tongue 3 to slide inward along the slide groove of the base plate 1. The locking end of the square tongue 3 retracts and disengages from the locking groove of the door frame, thus completing the unlocking.

[0032] When the key is turned in the reverse direction or released:

[0033] The square core torsion spring 10 releases its elastic potential energy, causing the square core 9 to reset counterclockwise. The toggle lever 8 disengages from pushing the latch assembly 11, and the latch assembly 11 extends under the action of the reset spring, re-engaging with the door frame.

[0034] The brake torsion spring 4 pushes the pusher plate 5 to rotate in the opposite direction, causing the brake plate 6 and transmission plate 7 to reset. At the same time, the square tongue 3 slides outward along the slide groove under the action of the pusher plate 5, and its locking end extends out and is embedded in the locking groove of the door frame to complete the locking.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A lock cylinder structure, comprising a base plate (1), characterized in that: The base plate (1) is equipped with a linkage protection component; The linkage protection assembly includes a cover plate (2) set on the top of the base plate (1), a square tongue (3) set on the base plate (1), a brake torsion spring (4) sleeved on the square tongue (3), a push plate (5) set on one side of the top of the square tongue (3), a brake plate (6) set on the top of the push plate (5), and a transmission plate (7) set on the top of the brake plate (6). A square core (9) is provided at one end of the square tongue (3).

2. The lock cylinder structure according to claim 1, characterized in that: A toggle lever (8) is provided on the square core (9), and a square core torsion spring (10) is provided at the top of the square core (9).

3. A lock cylinder structure according to claim 2, characterized in that: One end of the square core torsion spring (10) abuts against the end of the transmission plate (7), and one end of the brake torsion spring (4) abuts against the push plate (5).

4. A lock cylinder structure according to claim 1, characterized in that: A tongue assembly (11) is provided on one side of the square core (9). The tongue assembly (11) is embedded in the base plate (1), and one end of the tongue assembly (11) abuts against the end of the lever (8).

5. A lock cylinder structure according to claim 1, characterized in that: A panel assembly (12) is provided between the base plate (1) and the cover plate (2), and both the base plate (1) and the cover plate (2) are detachably connected to the panel assembly (12) by bolts.

6. A lock cylinder structure according to claim 1, characterized in that: The transmission plate (7) and the brake plate (6) are stacked and are rotatably connected.

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