CN203939302U - A kind of improved lock core mechanism - Google Patents

Abstract

The utility model relates to an improved lock core mechanism, which comprises a connecting rod, left and right lock core bodies, left and right lock core shafts and an unlocking dial. One side of the connecting rod has a downward extension and forms a fixed block, which is fixed The block is arranged between the left lock core shaft and the unlocking dial, and the unlocking dial and the left and right lock core shafts are respectively connected and driven by the left and right transmission blocks. A balance pin is arranged in the block, and a sliding lock pin is arranged axially eccentrically in the unlocking dial. One end of the slide lock pin is offset against the top pin, and the other end is matched with the balance pin. Two annular grooves are symmetrically arranged on the peripheral surface of the slide lock pin. Two locking grooves are provided up and down in the radial direction in the unblanking dial, and locking springs and locking pins are assembled in the locking grooves, and the locking pins cooperate with the annular grooves. Through the above design, when one side of the lock cylinder body is violently damaged, the rotation and opening of the unlocking dial can be actively restricted, which has the advantages of compact structure, strong anti-theft performance, wide application range and high reliability.

Description

An Improved Lock Cylinder Mechanism

technical field

The utility model relates to an improved lock cylinder mechanism.

Background technique

Existing common door lock, under the situation that one side lock core body is destroyed violently, the thief can open the door lock by stirring the unlocking dial, therefore, its anti-theft performance is not very perfect from a certain point of view.

Contents of the invention

In order to overcome the problem that the anti-theft performance of ordinary door locks in the prior art is not perfect when they are violently damaged, the utility model provides an improved lock cylinder mechanism. When encountering a certain degree of violent damage, it can actively restrict the rotation and opening of the unlocking dial, which enhances the anti-theft performance and high reliability.

The technical scheme adopted by the utility model to solve its technical problems is: comprising a left lock core body and a right lock core body connected by a connecting rod, the left lock core body and the right lock core body are inserted into the relative left lock core shaft and right lock core body respectively. The lock core shaft, the unlocking dial is arranged between the left lock core body and the right lock core body, one side of the connecting rod has a downward extension and forms a fixed block, and the fixed block is arranged between the left lock core shaft and the unlocking dial, The unlocking dial and the left lock spindle are connected and driven by the left transmission block passing through the fixed block, and the unlocking dial and the right lock spindle are connected and driven by the right transmission block. The right lock spindle is equipped with a compression spring and a top A balance pin is set in the fixed block, and a sliding lock pin is set axially eccentrically in the unlocking dial. One end of the slide lock pin is offset against the top pin, and the other end is matched with the balance pin. Annular groove, two locking grooves are provided up and down in the radial direction in the unlocking finger wheel, and locking spring and locking pin are assembled in the locking groove, and the locking pin cooperates with the annular groove.

Limiting projections are arranged on both side walls of the fixing block.

One side of the left transmission block and the right transmission block form a convex connection of the dial, and the other side forms a convex connection of the lock cylinder. The convex connection side of the lock cylinder can be axially slidably inserted into the lock core shaft and driven to rotate by the lock core shaft. The protruding side of the dial is axially slidably inserted into the dial for driving the unlocking dial to rotate.

Through the specific design of the above utility model, when the lock core body on one side is violently destroyed, the sliding locking pin will push the balance pin and enter the fixed block, and lock the unlocking dial and the fixing block, so that the unlocking dial cannot rotate, so as to prevent The purpose of violent destruction and opening has the advantages of simple and compact structure design, strong anti-theft performance, wide application range and high reliability.

Description of drawings

Below in conjunction with accompanying drawing and embodiment illustrate the detailed content of the present utility model.

Fig. 1 is a schematic diagram of an exploded structure of the utility model.

Fig. 2 is a schematic diagram of the assembly structure of the utility model.

Fig. 3 is a schematic view of the state of the lock pin when one side of the lock cylinder is violently destroyed in the present invention.

Fig. 4 is a cross-sectional view along line A-A of Fig. 2 .

Fig. 5 is a B-B sectional view of Fig. 2 .

Fig. 6 is a C-C sectional view of Fig. 3 .

Detailed ways

As shown in the figure, the utility model includes a left lock core body 1 and a right lock core body 2 connected by a connecting rod 3, and the left lock core body 1 and the right lock core body 2 are respectively inserted into the opposite left lock core shaft 4, The right lock core shaft 5, the unlocking dial 6 is arranged between the left lock core body 1 and the right lock core body 2, and one side of the connecting rod 3 has a downward extension and forms a fixed block 7, which can be arranged on the left lock Between the mandrel 4 and the unlocking dial 6, it can also be arranged between the right lock mandrel 5 and the unlocking dial 6, determined according to specific needs, or left or right is only the choice of direction, not limiting the scope of protection, the unlocking dial 6 and the left lock core shaft 4 are connected and driven by the left transmission block 8 passing through the fixed block 7, and the unlocking dial 6 and the right lock core shaft 5 are connected and driven by the right transmission block 9. The specific structure of the above-mentioned connection transmission can be On one side of the left transmission block 8 and the right transmission block 9, a key wheel convex connection 19 is formed, and a lock cylinder convex connection 20 is formed on the other side. The rotation is driven by the lock core shaft, and the side of the dial convex 19 can be axially slidably inserted into the unlock dial 6 to drive the unlock dial 6 to rotate. The right lock core shaft 5 is provided with a compression spring 10 and a push pin 11, A balance pin 12 is set in the fixed block 7, and a slide lock pin 13 is arranged eccentrically in the unlocking dial 6. One end of the slide lock pin 13 is offset against the top pin 11, and the other end is matched with the balance pin 12. The circumference of the slide lock pin 13 Two annular grooves 14 are symmetrically arranged on the surface, and two locking grooves 15 are set up and down in the radial direction in the unlocking dial 6, and a locking spring 16 and a locking pin 17 are assembled in the locking groove 15, and are encapsulated by a sealing plate 21, The locking pin 17 cooperates with the annular groove 14 . The locking pin 17 cooperates with the annular groove 14. When the lock body and balance pin 12 on one side are taken away or dropped due to violent damage, the sliding locking pin 13 is locked by the locking pin 17 through the annular groove 14. Therefore, the thief cannot attempt to turn the unlock dial 6 by taking out the sliding locking pin 13 . Limiting projections 18 are set on both side walls of the fixed block 7, and the design purpose of the limiting projections 18 is that when the lock core is integrally installed on the lock body, it will not be pushed into the lock body due to violent damage. As shown in Figure 3, when the left lock core body 1 is violently destroyed, the compression spring 10 on the right loses its support, and the sliding locking pin 13 is pushed to move to the left by the ejector pin 11, and one end of the sliding locking pin 13 pushes off the balance pin 12 and enters. In the fixed block 7, the unlocking dial 6 and the fixed block 7 are locked, so that the unlocking dial 6 cannot rotate, so as to achieve the purpose of anti-violence opening. When the sliding locking pin 13 moves into place, under the action of the locking spring 16, the locking pin 17 enters the annular groove 14 of the sliding locking pin 13 on the upper and lower sides of the sliding locking pin 13, so that the sliding locking pin 13 can no longer move. In this state, the thief cannot attempt to turn the unlocking dial 6 by taking out the sliding locking pin 13, which further enhances the anti-theft performance. The embodiment described above is only a description of a preferred embodiment of an improved lock cylinder mechanism of the utility model, and is not intended to limit the concept and scope of the utility model. Various appearance modifications and improvements made by personnel to the technical solution of the utility model should fall into the protection scope of an improved lock cylinder mechanism of the utility model.

Claims (3)

1. An improved lock core mechanism, comprising a left lock core body and a right lock core body connected by a connecting rod, and the left lock core body and the right lock core body are respectively inserted into the relative left lock core shaft 4 and the right lock core shaft , between the left lock core body and the right lock core body, an unlocking dial is set, and the feature is that one side of the connecting rod (3) has a downward extension and forms a fixed block (7), and the fixed block (7) is set on the left lock Between the mandrel (4) and the unlocking dial (6), between the unlocking dial (6) and the left lock mandrel (4) is connected by the left transmission block (8) passing through the fixed block (7). The dial wheel (6) and the right lock core shaft (5) are connected and driven by the right transmission block (9), and the right lock core shaft (5) is provided with a compression spring (10) and a top pin (11), and the fixed block ( Set the balance pin (12) in 7), set the sliding locking pin (13) axially eccentrically in the unlocking dial (6), one end of the sliding locking pin (13) is offset against the top pin (11), and the other end is against the balancing pin ( 12) Matching, two annular grooves (14) are arranged symmetrically on the peripheral surface of the sliding locking pin (13), and two locking grooves (15) are set up and down in the radial direction in the unlocking dial (6), and the locking groove ( 15) Assemble the locking spring (16) and locking pin (17), and the locking pin (17) matches the annular groove (14). 2. An improved lock cylinder mechanism according to claim 1, characterized in that limit projections (18) are set on both side walls of the fixed block (7). 3. An improved lock cylinder mechanism according to claim 1 or 2, characterized in that one side of the left transmission block (8) and the right transmission block (9) form a dial cam (19), and the other side A lock cylinder projection (20) is formed, the side of the lock cylinder projection (20) can be axially slidably inserted into the lock cylinder shaft and driven to rotate by the lock cylinder shaft, and the dial wheel projection (19) side can axially slide The plug sleeve is in the unlocking thumbwheel (6) to drive the unlocking thumbwheel (6) to rotate.