CN1995669B - Lock head of built-in mortise door lock - Google Patents

Abstract

The invention discloses a lock head of a built-in mortise door lock, which comprises a lock body, wherein lock cylinders are arranged at two ends in the lock body, one lock cylinder is a conventional lock cylinder, the other lock cylinder is an idle lock cylinder and consists of a lock cylinder and a rotating sleeve, the lock cylinder is sleeved in the rotating sleeve, the end parts of the rotating sleeve on the conventional lock cylinder and the idle lock cylinder are provided with notches, a shifting block is arranged between the end parts of the two lock cylinders, a clutch device is arranged in the shifting block, and a reset spring is arranged between the clutch device and the idle lock cylinder. The utility model discloses the tapered end is compared with current tapered end, owing to adopted the clutch who takes reset spring, makes the rotation cover on the lock core of idling be in all the time with the shifting block interlock state, has solved the lock core of idling because the lock core can idle run be difficult to with clutch complex problem. After the idle lock cylinder is used, the performance of preventing technical unlocking and destructive lock picking is further improved.

Description

Lock head of a built-in mortise door lock

technical field

The invention belongs to mechanical locks, and relates to a lock head of a built-in mortise door lock. the

Background technique

The lock head of the existing built-in mortise door lock has a double lock core structure, which can switch the lock with a key from two different directions. The two lock cylinders all adopt the same structure, and a toggle is arranged between the ends of the two lock cylinders, and their linkage with the dead bolt is realized by the toggle with a clutch device. The clutch device is composed of two clutch plates with protrusions. The clutch plates can rotate relative to each other. They are located in the dial. There is an inward rib on the inner wall of the dial. There is a gap, and the end of the lock cylinder also has a gap corresponding to the protrusion of the clutch plate. The two clutch plates are respectively located in the gaps at the ends of the two lock cylinders, and each clutch plate can move in the gaps at the ends of the corresponding lock cores and the notch of the ribs of the dial, and the movement distance is the thickness of the ribs of the dial. When the lock is unlocked from one direction, the head of the key can move the clutch device forward by a distance of the thickness of the rib of the toggle. Simultaneously, the contact surface between the clutch piece and the other clutch piece is just positioned at the side of the convex rib of the toggle head, and part of it is still located in the gap at the end of the lock cylinder. When the key is turned, the key drives the clutch plate, and the clutch plate acts on the convex ribs to drive the dial to rotate, and the dial moves the dead bolt to realize the switch of the lock. When the key is inserted into the lock cylinder from the opposite direction to unlock, the clutch piece on this side also enters into the notch in the convex rib of the actuating head and engages with the actuating head, while the clutch plate on the other side exits the notch in the convex rib of the actuating head and engages with the actuating head. separate. the

Although the lock head of the existing built-in mortise door lock can control the switch of the lock from two directions, the disadvantage is that the lock core adopted is not high in safety, and it cannot effectively prevent technical unlocking and destructive picking. the

In terms of preventing technical unlocking and destructive lockpicking performance, some ideal lock cylinders have appeared at present, such as ZL99115581. A lock cylinder that controls the opening and closing of the lock cylinder, and another lock cylinder (idle rotation lock cylinder) that can make the lock cylinder idle by being provided with a rotating sleeve between the lock cylinder and the lock body. The characteristic of the idling lock cylinder is that it can be unlocked when the matching key is used to unlock the lock, but when the non-matching key is used to unlock the lock, the lock cylinder can only be idling relative to the rotating sleeve. This kind of lock cylinder can prevent external forces from acting on the lock body and the lock ruler, thereby The difficult problems of strong unlocking and destructive unlocking are better solved. But this type of lock core can not be applied to the lock end of the built-in mortise door lock, because the problem that the idling lock core has not been solved has been difficult to cooperate with the clutch device because the lock core can be idling. There are also idle lock cylinders of other structures, and their common point is that they all have identical rotating sleeves of effect. the

Contents of the invention

The object of the present invention is to provide a lock head of a built-in mortice door lock including an idle lock cylinder in view of the above situation. the

The object of the present invention is achieved in this way: the lock head of the built-in mortise door lock includes a lock body, two ends of the lock body are provided with a lock core, and a toggle head with a built-in clutch device is provided between the ends of the two lock cores, one of which is The core is a conventional lock core (the lock core cannot be idle), and the other lock core is an idle lock core, which is composed of an inner lock core and a rotating sleeve. The inner lock core is set in the rotating sleeve, and the idle lock core is matched with the clutch device through the rotating sleeve , A return spring is provided between the end of the idle lock cylinder and the clutch device. the

working principle:

When the lock is not open, under the action of the return spring, the clutch device is in a position close to the side of the conventional lock cylinder, and the clutch piece matched with the rotating sleeve on the idling lock cylinder in the lock head extends into the convex rib of the dial. It is in a normally closed state when it is engaged with the dial, while the clutch plate that cooperates with the conventional lock cylinder is located outside the convex rib of the dial and is in a state of separation from the dial. Although the rotary sleeve on the idling lock cylinder is engaged with the toggle head, the inner lock core can only be idling relative to the rotary sleeve when using a non-matching key to unlock the lock, and the lock cannot be opened or closed; The lock cannot be opened or closed. When unlocking, when the key is inserted into the conventional lock cylinder, the head of the key pushes the clutch device toward the idling lock cylinder, so that the clutch piece matched with the conventional lock cylinder enters the convex rib of the actuating head and engages with the actuating head, and the key is turned The lock can be opened and closed. When the key is withdrawn, the clutch device is reset under the action of the return spring; the idling lock cylinder uses a matching key, which can make the rotating sleeve and the inner lock cylinder rotate together, and drive the dial to turn to realize the lock opening and closing. the

The conventional lock core can adopt the lock core disclosed in the ZL99115581.5 patent document, which includes a pin and a pin return spring. The inner side of the groove communicates with the side of the pinhole and is roughly perpendicular to the pinhole. The outer side of the side column groove can correspond to the square groove inside the round hole of the lock body. There is a circle of V-shaped grooves on each pinhole. There is a locking side column, the inner side of the locking side column is ∧-shaped, which can be matched with the V-shaped groove on the marble, and there is a step on the locking side column, and a pressure plate is fixed on the outer side of the side column groove corresponding to the step. A locking side post return spring is provided between the pressing plate and the step of the locking side post, and the lock hole on the lock core is semi-closed at the edge of the lock core, and the tooth surface of the hole is perpendicular to the tumbler group. the

The idling lock core can adopt the lock core disclosed in the ZL200520054908.7 patent document, which is composed of an inner lock core and a rotating sleeve sleeved on it. The inner lock core is provided with a locking side post mechanism, and the inner lock core is also fastened There is a sheath, and a groove-shaped hole is opened on the sheath corresponding to the locking side column. A rotating sleeve is provided between the inner lock cylinder and the lock body. A through pin hole is opened on the wall of the rotating sleeve, and a movable The middle bead, the length of the middle bead is greater than the thickness of the wall of the rotating sleeve, and a positioning hole is opened on the inner wall of the lock corresponding to the pin hole of the rotating sleeve, and a flat bead and a spring are placed in the positioning hole, and the end of the rotating sleeve is opened. There is a gap that can be matched with the toggle head of the built-in clutch device. The inner lock cylinder and the rotating sleeve are connected as a whole by an axial limit part to prevent the lock cylinder from falling out of the rotating sleeve; the locking side column on the inner lock cylinder The length is determined in this way. When the lock is closed (the supporting key is pulled out from the inner lock cylinder, and the locking side column is pushed out by the V-shaped groove pin), the outer surface of the locking side column is flush with the outer surface of the lock inner core. ; The length of the middle bead is determined in this way. When the lock is opened (after the supporting key is inserted into the inner lock cylinder, the locking side column is fully matched with the V-shaped groove pin and shrinks inwardly to the inner lock cylinder), the length of the locking side column plus The length of middle bead just makes the outer end surface of middle bead flush with the outer surface of rotating sleeve. the

Compared with the existing lock head, the lock head of the built-in mortise door lock of the utility model adopts a clutch device with a return spring, so that the rotating sleeve on the idling lock core is always in the state of interlocking with the dial head, which solves the problem of The existing idling lock cylinder can rotate arbitrarily because the rotating sleeve can rotate freely, so it is difficult to insert the protrusion on the clutch plate into the gap of the convex rib in the driving head and engage with the driving head. After the utility model uses the idling lock core, the performance of preventing technical unlocking and destructive lockpicking is further improved. the

The technical solution of the present invention will be further described below in conjunction with the accompanying drawings. the

Description of drawings

Fig. 1 is a sectional view of the present invention. the

Fig. 2 is a sectional view of A-A in Fig. 1 . the

Fig. 3 is a B-B sectional view in Fig. 1 . the

Detailed ways

The lock head of the built-in mortise door lock of the present invention is shown in Fig. 1, Fig. 2 and Fig. 3. There is a lock body 1, and two ends in the lock body 1 are provided with lock cores, one of which is a conventional lock core 20, and the other lock The core is an idle lock cylinder, which is composed of an inner lock core 9 and a rotating sleeve 13. The inner lock core 9 is enclosed within the rotating sleeve 13, and the ends of the conventional lock core 20 and the idle rotating lock core have a gap 11 at the ends of the rotating sleeve 13. A toggle 2 is arranged between the ends of the two lock cores, and a clutch device is installed in the toggle 2. The clutch is composed of two clutch plates 3, 17 with protrusions 14, 16, and the clutch plates 3, 17 can be Relatively rotate, there is an inward convex rib 15 on the inner wall of the shifting head 2, and there are gaps corresponding to the protrusions 14, 16 of the clutch plate on the convex rib 15, and the two clutch plates 3, 17 are respectively located on the inner lock cylinder 9. Rotate the sleeve In the gap 11 of the end and the conventional lock core 20 ends, each clutch plate can move in the gap 11 of the corresponding conventional lock core 20 ends or the ends of the rotating sleeve 13 and in the gap 15 of the head rib 15, and the movement distance is The thickness of the dial rib 15 is provided with a back-moving spring 4 between the end of the idling lock cylinder rotating sleeve 13 and the clutch, and the lock body 1 is provided with a square hole 25 to adapt to the rotation of the dial 2. the

There are marble 19 and pin return spring 21 on the conventional lock core 20. The inside of the round hole of the lock body at one end of the conventional lock core 20 has a square groove 22, and the lock core 20 has a side post groove and a pin hole. The sides of the pinholes communicate with each other and are roughly perpendicular to the pinholes. The outside of the side column groove can correspond to the square groove 22 inside the round hole of the lock body. Each pin 19 has a V-shaped groove in a circle, and the side column groove is provided with a V-shaped groove. Locking side post 23 is arranged, and the inboard of locking side post 23 is ∧ shape, can cooperate with the V-shaped groove on the marble 19, is provided with step on the locking side post 23, is fixed on the side post groove outside corresponding with step. The pressing plate is provided with the locking side post 23 return spring between the pressing plate and the step of the locking side post 23, the lock hole on the lock core 20 is located at the edge of the lock core 20 and is semi-closed, and the tooth surface of the hole is perpendicular to the 19 groups of marbles . Among Fig. 1, key 18 is inserted in the lockhole, and the clutch device has not been pushed forward, so the lock cannot be unlocked.

The inner lock core 9 of the idle lock cylinder is provided with a pin 10 with a V-shaped groove and a spring 24, and a locking side post 8 that cooperates with the pin 10. The V-shaped groove pin 10 and the locking side post 8 form a locking side post mechanism. On the lock core 9, a sheath 12 is also fastened, and the position corresponding to the locking side column 8 on the sheath 12 is provided with a through groove-shaped hole, and a rotating sleeve 13 is arranged between the inner lock core 9 and the lock body 1, and the rotating sleeve 13 sets of walls are provided with through pin holes, and movable middle beads 7 are placed in the pin holes. The length of the middle beads 7 is greater than the thickness of the 13 sets of walls of the rotating sleeve, and the pin hole corresponding to the rotating sleeve 13 is on the inner wall of the lock body 1. There is a positioning hole in the position, and a flat ball 6 and a spring 5 are placed in the positioning hole. The inner lock core 9 and the rotating sleeve 13 are connected together by an axial limiting component card, and the limiting component card passes through the rotating sleeve 13 and the inner lock core. Lock core 9 cooperates, and other forms such as pin also can be adopted for position-limiting parts; The length that is positioned at the locking side post 8 on interior lock core 9 is determined in this way, under the lock closed state (supporting key is extracted out from interior lock core 9) , the locking side column 8 is ejected outward by the V-shaped groove marble 10), the outer surface of the locking side column 8 is flush with the outer surface of the inner lock core 9; the length of the middle bead 7 is determined in this way, when the lock is opened (After the supporting key is inserted into the inner lock core 9, the locking side column 8 is fully matched with the V-shaped groove marble 10 and retracted toward the inner lock core 9), the length of the locking side column 8 plus the length of the middle bead 7 just makes the middle bead 7 The outer end face of the outer end is flush with the outer surface of the rotating sleeve 13. In Fig. 3, the inner lock cylinder 9 is not inserted with a mating key, and is in a state where it can be idling. the

Claims (3)

1. the tapered end of a built-in type mortise door lock, comprise lock body, two in the lock body is provided with lock core, the shifting block of dress arrangement of clutch between two lock core ends, being provided with, it is characterized in that: one of them lock core is conventional lock core, another lock core is an idle-run lock pin, form by internal cylinder and turning set, internal cylinder is enclosed within the turning set, and idle-run lock pin matches with arrangement of clutch by turning set, is provided with back-moving spring between the end of idle-run lock pin and arrangement of clutch.

2. tapered end according to claim 1, it is characterized in that: described conventional lock core comprises pellet shot from a slingshot, the pellet shot from a slingshot return spring, the lock body circular-hole internal-wall has square groove, have the side column groove on the conventional lock core, the pellet shot from a slingshot hole, the side column groove is inboard to communicate with the side in pellet shot from a slingshot hole, and with pellet shot from a slingshot hole approximate vertical, the side column groove outside can be corresponding with the square groove of lock body circular-hole internal-wall, one circle v-depression is all arranged on each pellet shot from a slingshot, be provided with locking side column in the side column groove, the inboard of locking side column is a ∧ shape, can match with the v-depression on the pellet shot from a slingshot, and locking side column is provided with step, with be fixed with pressing plate on the corresponding side column groove of the step outside, be provided with the locking side column return spring between the step of pressing plate and locking side column, the outer wall position that lockhole is positioned at conventional lock core is semiclosed shape, and the lockhole flank of tooth is vertical with the pellet shot from a slingshot group.

3. tapered end according to claim 1 and 2, it is characterized in that: be provided with locking side column mechanism in the described internal cylinder, also be fastened with sheath on the internal cylinder, the position corresponding with locking side column has the perforation slotted hole on the sheath, between internal cylinder and lock body, be provided with a turning set, have the perforation pin-and-hole on the turning set jacket wall, be placed with pearl in the activity in the pin-and-hole, the length of middle pearl is greater than the thickness of turning set jacket wall, on the lock body inwall, have locating hole with the corresponding position of the pin-and-hole of turning set, be placed with flat pearl and spring in the locating hole, the end of turning set has breach and can cooperate with the shifting block of interior dress arrangement of clutch, adopt the axial limiting parts to link into an integrated entity between internal cylinder and the turning set, from turning set, deviate to prevent internal cylinder; The length that is positioned at the locking side column on the internal cylinder is to determine like this, and under the lock closed condition, the lateral surface of locking side column is concordant with the external surface of internal cylinder; The length of middle pearl is to determine like this, and under the lock opening, the length of pearl just made the outer face of middle pearl concordant with the external surface of turning set during the length of locking side column added.

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