CN205000743U - Modified lock core mechanism - Google Patents

Abstract

The utility model relates to an improved lock core mechanism, which comprises a left lock core body and a right lock core body connected by a connecting rod, an unlocking dial is arranged between the left lock core body and the right lock core body, and the unlocking dial and the left lock The handles are connected and driven by the left transmission block passing through the unlocking dial. The front end of the left transmission block forms an interlocking chuck, the right lock core shaft interlocks the right transmission block, and the front end of the right transmission block forms an interlocking card slot. The card slot is matched with the interlocking chuck, and the sliding locking pin is arranged radially up and down in the unlocking dial. One end of the sliding locking pin is connected with the pressure spring, and the other end is matched with the right transmission block. The peripheral surface of the sliding locking pin is set 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. 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

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 solution adopted by the utility model to solve the technical problem 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 unlocking handle and right lock respectively. The mandrel, the unlocking dial is arranged between the left lock core body and the right lock core body, and one side of the connecting rod has a downward extension and forms a fixed block. The fixed block is arranged between the right lock core shaft and the unlocking dial, and the unlocking The dial and the left unlocking handle are connected and driven by the left transmission block passing through the unlocking dial. The front end of the left transmission block forms a linkage chuck. The card slot, the interlocking card slot matches the interlocking card head, the sliding locking pin is arranged radially up and down in the unlocking dial, one end of the sliding locking pin is connected with the pressure spring, and the other end is matched with the right transmission block, and the sliding locking pin Annular grooves are set on the peripheral surface of the unlocking thumb wheel, and two locking grooves are set up and down in the radial direction in the unlocking finger wheel. Locking springs and locking pins are assembled in the locking grooves, and the locking pins cooperate with the annular grooves.

A protective sleeve is sleeved on the end of the right transmission block, and the protective sleeve is matched with the sliding locking pin.

One side of the left transmission block forms a convex connection of the handle, and the convex connection of the handle can be axially slidably inserted into the left unlocking handle and is driven to rotate by the left unlocking handle. One side of the right transmission block forms a convex connection of the lock cylinder, and the convex connection of the lock cylinder Axially slidably inserted and sleeved in the right lock core shaft and driven to rotate by the right lock core shaft.

The utility model adopts the above-mentioned specific design, when the left lock core is violently destroyed, the sliding locking pin will be pushed away from the right transmission block, and the locking pin enters the annular groove so that the sliding locking pin cannot slide in the opposite direction, and the unlocking dial will also It cannot be rotated to achieve the purpose of anti-violent damage opening. It 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 diagram of the assembly structure of the utility model after the key is inserted.

Fig. 4 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. 5 is a cross-sectional view along line A-A of Fig. 2 .

Fig. 6 is a B-B sectional view of Fig. 2 .

Fig. 7 is a C-C sectional view of Fig. 2 .

Fig. 8 is a D-D sectional view of Fig. 2 .

detailed description

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 inserted into the corresponding left unlocking handle 4 and right lock core body respectively. The 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 is arranged on the right lock core shaft 5 and the unlocking dial 6, between the unlocking dial 6 and the left unlocking handle 4 is connected and driven by the left transmission block 8 passing through the unlocking dial 6, the front end of the left transmission block 8 forms a linkage chuck 8a, and the right lock The mandrel 5 links the right transmission block 9, and the front end of the right transmission block 9 forms an interlocking card slot 9a, and the interlocking card slot 9a cooperates with the interlocking card head 8a, and the radially upward and downward sliding locking pins 10 are arranged in the unlocking dial 6 One end of the sliding locking pin 10 is connected with the clip spring 11, and the other end is matched with the right transmission block 9. An annular groove 12 is arranged on the peripheral surface of the sliding locking pin 10, and two locks are set up and down radially in the unlocking dial 6. The locking groove 13, the locking spring 14 and the locking pin 15 are assembled in the locking groove 13, the locking pin 15 matches with the annular groove 12, and is encapsulated by the sealing plate 19. The function of the locking pin 15 and the annular groove 12 is to lock the sliding locking pin 10 by the locking pin 15 through the annular groove 12 when the left lock cylinder is taken away or dropped due to violent damage, so that the sliding locking pin Can not slide in reverse, and the thumb wheel 6 for unlocking cannot rotate. A protective cover 16 is socketed at the end of the right transmission block 9, and the protective cover 16 cooperates with the sliding locking pin 10. The main function of the protective cover 16 is to ensure the stability of the movement of the right transmission block 9, and at the same time ensure that the key end is destroyed by violence. The right transmission block 9 can not be inclined by external force, and can not reveal the gap that allows special tool to enter the operation of the unlocking dial 6 . One side of the left transmission block 8 forms a handle convex joint 17, which can be axially slidably inserted into the left unlock handle 4 and driven to rotate by the left unlock handle 4, between the handle convex joint 17 and the left unlock handle 4 A spring 20 is provided, and one side of the right transmission block 9 forms a lock core projection 18 , which can be axially slidably inserted into the right lock core shaft 5 and driven to rotate by the right lock core shaft 5 . During normal use, the left unlocking handle 4 can drive the unlocking dial 6 to rotate and unlock. When the key is inserted into the right lock core shaft 5 to push the right transmission block 9 to move toward the left transmission block 8, when the interlocking chuck 8a at the front end of the left transmission block 8 engages with the card slot 9a provided on the right transmission block 9, the key can be The unlocking finger wheel 6 is driven to rotate by the right transmission block 9 and the left transmission block 8 to achieve the purpose of unlocking. When the key was pulled out, the right transmission block 9 got back to the initial position under the action of the stage clip 11 and the sliding lock pin 10, and all parts returned to the initial state. As shown in Figure 4, when the right lock core body 2 at the key end encounters violent damage, the balance between the various components inside the lock body is broken, and the compression spring 11 pushes the right transmission block 9 through the sliding lock pin 10 to continue to move towards the damaged end , when moving to a certain position, the locking pin 15 pops out into the annular groove 12 on the sliding locking pin 10, thereby locking the sliding locking pin 10 so that it cannot return to its position again, while the left transmission block 8 and the right transmission block 9 remain separated , to protect the unlocking dial 6 from being forcibly turned, so as to achieve the effect of anti-violent opening, but the handle end still retains the unlocking function because it is not affected, so that the lock cylinder can be opened from the room to avoid damage afterwards The lock body or the door can also open the door. The above-mentioned embodiment is only a description of the preferred implementation of the 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 the technical scheme of the utility model should fall within the scope of protection of the improved lock cylinder mechanism of the utility model.

Claims (3)

1. the lock core mechanism improved, comprise the left lock core body and right lock core body that are connected by connecting rod, left lock core body, the left unlocking handle that in right lock core body, grafting is relative respectively and right lock core shaft, between left lock core body and right lock core body, thumb wheel of unblanking is set, it is characterized in that the side of connecting rod (3) has downward extension and forms fixed block (7), fixed block (7) is arranged between right lock core shaft (5) and thumb wheel of unblanking (6), unblank between thumb wheel (6) and left unlocking handle (4) by Left Drive block (8) connection for transmission through thumb wheel of unblanking (6), the front end of Left Drive block (8) forms interlock dop (8a), the right drive block of right lock core shaft (5) interlock (9), the front end of right drive block (9) forms interlock draw-in groove (9a), interlock draw-in groove (9a) matches with interlock dop (8a), thumb wheel (6) central diameter of unblanking arranges slide lock rationed marketing (10) up and down, one end of slide lock rationed marketing (10) connects with stage clip (11), the other end matches with right drive block (9), the side face of slide lock rationed marketing (10) is arranged cannelure (12), unblank radially to offer two lock grooves (13) up and down in thumb wheel (6), assembling locking spring (14) and lock pin (15) in lock groove (13), lock pin (15) matches with cannelure (12).

2. the lock core mechanism of a kind of improvement according to claim 1, is characterized in that protective sleeve (16) matches with slide lock rationed marketing (10) in the end of right drive block (9) socket protective sleeve (16).

3. the lock core mechanism of a kind of improvement according to claim 1 and 2, it is characterized in that the side of Left Drive block (8) forms that handle is convex connects (17), handle is convex to be connect (17) and can drive in left unlocking handle (4) and by left unlocking handle (4) and rotate by sleeve axially slidably, the side of right drive block (9) forms that lock core is convex to be connect (18), and lock core is convex to be connect (18) and can drive in right lock core shaft (5) and by right lock core shaft (5) and rotate by sleeve axially slidably.