CN201395989Y

CN201395989Y - Back locking mechanism of door lock

Info

Publication number: CN201395989Y
Application number: CN2009201187452U
Authority: CN
Inventors: 徐钜祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-26
Filing date: 2009-04-26
Publication date: 2010-02-03
Anticipated expiration: 2019-04-26

Abstract

The utility model relates to a back locking mechanism of door lock, comprising a lock core axle sleeve and a lock core axle movably sheathed in the lock core axle sleeve; wherein the inner end of thelock core axle is geared with a driver plate via a slider, a sliding core pole is sheathed in the lock core axle along axis line, a blind hole is provided in the sliding core pole, a spring and a backlocking pin are assembled in the blind hole, the back locking pin is fit with a back locking pinhole on the lock pin axle, a compression spring and a top pillar are provided in the lock core axle sleeve, the top pillar is fit with the back locking pin entered into the back locking pinhole under back locking state, a limiting groove is provided on the sliding core pole and is fit with a positioning pin fixed on the lock core axle, and a return spring is provided at the inner end of the sliding core pole. The back locking mechanism of door lock overcomes the defects of common door lock back locking mechanism of prior art, such as complex structure design, bad hand feel in operation and high accident rate. The utility model simplifies the structure of back locking mechanism of the door lock,with simple operation and usage. The back locking mechanism has the advantages of compact structure, good hand feel in operation, low accident rate and high reliability.

Description

Door lock lock mechanism

Technical field

The utility model relates to a kind of mechanism of locking of door lock.

Background technology

Lock exactly in the room on the door lock so that even people outdoors has the key that matches to open door, conventional door lock lock mechanism, its structure design more complicated, and in use, the feel of operation is not good, and comparatively speaking, fault rate is also higher.

Summary of the invention

Lock the complex structural designs of mechanism in order to overcome common door lock in the prior art, operating handle is not good, yet problem of higher of fault rate, the utility model provides a kind of mechanism of locking of door lock, and this door lock is locked low, the good reliability of structure design compactness, fault rate of mechanism.

The technical scheme that its technical problem that solves the utility model adopts is: comprise lock core shaft's overcoat and be actively socketed on the interior lock core shaft of lock core shaft's overcoat, lock core shaft's medial extremity is by slide block interlock dial, in lock core shaft along axis socket sliding core pole, be provided with blind hole in the sliding core pole, assembling spring and reverse lockpin in the blind hole, reverse lockpin matches with the pin-and-hole of locking in the lock core shaft, stage clip and fore-set are set in lock core shaft's overcoat, fore-set with lock state under enter the reverse lockpin of locking pin-and-hole and match, on sliding core pole, be provided with stopper slot, stopper slot matches with alignment pin on being fixed on lock core shaft, and the medial extremity of sliding core pole is provided with back-moving spring.

The outboard end of lock core shaft interts in lock core shaft and unlatching knob along the axis activity with unlatching knob Joint, sliding core pole.

On the periphery wall of lock core shaft, be provided with annular groove, lock pin-and-hole and be in the annular groove.

The utility model is by above-mentioned specific design, simplified the structure that door lock is locked mechanism, manipulates very conveniently, has compact conformation, operating handle is good, fault rate is low, reliable high advantage.

Description of drawings

Below in conjunction with drawings and Examples detailed content of the present utility model is described.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 the utility model is locked the structural representation of state;

Fig. 4 is the B-B sectional view of Fig. 3;

Fig. 5 the utility model is removed the structural representation when locking;

Fig. 6 is the C-C sectional view of Fig. 5;

Fig. 7 the utility model is removed the structural representation after locking;

Fig. 8 is the D-D sectional view of Fig. 7.

The specific embodiment

As shown in the figure, the utility model comprises lock core shaft's overcoat 1 and the lock core shaft 2 that is actively socketed in lock core shaft's overcoat 1, lock core shaft's 2 medial extremitys are by slide block 3 interlock dials 4, in lock core shaft 2 along axis socket sliding core pole 5, be provided with blind hole 16 in the sliding core pole 5, assembling spring 6 and reverse lockpin 7 in the blind hole 16, reverse lockpin 7 matches with the pin-and-hole 8 of locking in the lock core shaft 2, on the periphery wall of lock core shaft 2, be provided with annular groove 15, lock pin-and-hole 8 and be in the annular groove 15, the hole wall of locking pin-and-hole 8 has certain inclined-plane.Stage clip 9 and fore-set 10 are set in lock core shaft's overcoat 1, fore-set 10 with lock state under enter the reverse lockpin 7 of locking pin-and-hole 8 and match.Be provided with stopper slot 13 on sliding core pole 5, stopper slot 13 matches with alignment pin 14 on being fixed on lock core shaft 2.The medial extremity of sliding core pole 5 is provided with back-moving spring 11.The outboard end of lock core shaft 2 interts in lock core shaft 2 and unlatching knob 12 along the axis activity with unlatching knob 12 Joints, sliding core pole 5.In the said structure design, the elastic force contrast of each spring should be back-moving spring 11＞stage clip 9＞spring 6.As Fig. 1, shown in 2, under normal condition, key is that linkage dial 4 is unblanked after inserting and putting in place, in the time of need locking, as Fig. 3, shown in 4, compress into the protuberance of sliding core pole 5, sliding core pole 5 advances slide block 3 and compression reseting spring 11 when moving ahead, simultaneously, reverse lockpin 7 one ends on the sliding core pole 5 in the blind hole 16 are headed into by spring 6 and lock pin-and-hole 8 in the lock core shaft 2, at this moment, sliding core pole 5 is locked, and the change in location of slide block 3 makes key not insert and put in place that door lock can not be opened, under above-mentioned state, the axis of fore-set 10 is on the same working face with the axis of reverse lockpin 7 in lock core shaft's overcoat 1; When releasing is locked, rotate and open knob 12, open spring 6, the reverse lockpin 7 that knob 12 drives in lock core shaft 2, sliding core pole 5 and the sliding core poles 5 and rotates simultaneously, shown in Fig. 5,6,7,8, when the axis joint of fore-set 10 in the axis of reverse lockpin 7 and the lock core shaft's overcoat 1, fore-set 10 presses down, reverse lockpin 7 pushed away lock pin-and-hole 8, sliding core pole 5 is disengaged locking, and sliding core pole 5 moves in the other direction at back-moving spring 11 effect lower edge axis, at this moment, key can promote slide block 3 and inserts and put in place; Before next locks operation, first rotation lock mandrel 2, by the inclined-plane of locking pin-and-hole 8 hole walls in the lock core shaft 2 fore-set 10 is pushed away and lock pin-and-hole 8.In the above-mentioned course of work, stopper slot 13 matches with alignment pin 14 on being fixed on lock core shaft 2, plays control sliding core pole 5 displacements and rotation interlock.Above-described embodiment is described preferred implementation of the present utility model; be not that design and scope to utility model limits; under the prerequisite that does not break away from the utility model scheme; various external form modification and improvement that those skilled in the art make the technical solution of the utility model all should fall into the protection domain of locking mechanism of the utility model door lock.

Claims

1, a kind of door lock lock mechanism, comprise lock core shaft's overcoat and be actively socketed on the interior lock core shaft of lock core shaft's overcoat, lock core shaft's medial extremity is by slide block interlock dial, it is characterized in that in lock core shaft (2) along axis socket sliding core pole (5), be provided with blind hole (16) in the sliding core pole (5), assembling spring (6) and reverse lockpin (7) in the blind hole (16), reverse lockpin (7) matches with the pin-and-hole (8) of locking in the lock core shaft (2), stage clip (9) and fore-set (10) are set in lock core shaft's overcoat (1), fore-set (10) with lock state under enter the reverse lockpin (7) of locking pin-and-hole (8) and match, on sliding core pole (5), be provided with stopper slot (13), stopper slot (13) matches with alignment pin (14) on being fixed on lock core shaft (2), and the medial extremity of sliding core pole (5) is provided with back-moving spring (11).

2, door lock according to claim 1 lock mechanism, the outboard end that it is characterized in that lock core shaft (2) with open knob (12) Joint, sliding core pole (5) interts in lock core shaft (2) and unlatching knob (12) along the axis activity.

3, door lock according to claim 1 and 2 lock mechanism, it is characterized in that on the periphery wall of lock core shaft (2), being provided with annular groove (15), lock pin-and-hole (8) and be in the annular groove (15).