CN2525179Y

CN2525179Y - Open and close device for lock

Info

Publication number: CN2525179Y
Application number: CN 02205727
Authority: CN
Inventors: 李善德
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-03-05
Filing date: 2002-03-05
Publication date: 2002-12-11
Anticipated expiration: 2012-03-05

Abstract

The utility model discloses an open and close device for lock , which comprises a shell, a lock core, marbles which is arranged between the matching surfaces of the shell and the lock core and is used for preventing mutual rotation between the shell and the lock core, arch gleithretters, two bond blocks, etc. The lock core consists of an inner cylindrate lock core, an outer cylindrate lock core and a cylindrate bush to form a three-in-one structure; the bond blocks on the adjacent head faces between the bond blocks and the arch gleithretters take the shape of semi-cylindrical; the bond blocks on the adjacent head faces between the bond blocks and the marbles are of rectangular. When unlocking and locking, the outer cylindrate lock core is used as an unlocking body and the inner lock core can freely rotate after the key is drawn out, thereby, the lock can not be opened by prizing up, dialing the inner lock core and other technical unlocking techniques and the safe operational performance of the lock is greatly increased; in addition, the contact areas between the bond blocks and the marbles and each surface of a groove and a slide groove is larger, thereby achieving smooth and stable moving, occurring misoperation uneasily and improving the life-span and work reliability of the door lock.

Description

The opening and closing device of lock

Technical field

The utility model relates to a kind of lockset, particularly relates to a kind of opening and closing device of lock.

Background technology

The prior art relevant with the utility model is structure anti-theft lock end as shown in Figure 1, 2, 3, and it comprises housing 1, is arranged at the cylindrical internal cylinder 2 in the housing and be sleeved on the outer cylindrical shape outer lock core 3 of internal cylinder 2 etc. rotationally.Between the fitting face of housing and lock core, also be provided be used to stop housing and lock core to rotate mutually some to pellet shot from a slingshot 9, two bar shaped card keys 8 and some to arc slide 5 etc., wherein: the external surface of described internal cylinder 2 is provided with one group of ring-shaped groove 4 perpendicular to axis direction, in each ring-shaped groove, be symmetrical arranged a pair of arc slide 5 and a slide stage clip 6, the two ends of this slide stage clip 6 are against respectively on this adjacent face to arc slide 5, leave certain interval between two other end face of slide 5, one keyway 7 is set respectively in the outer rim symmetric position of every pair of arc slide; Two bar shaped card keys 8 are parallel with axis and be placed in the chute 10 of outer lock core 3 both sides, in the relevant position of inner walls and chute 10 card key groove 11 are set, and described pellet shot from a slingshot 9 places card key groove 11 places in the housing 1, and its movable end is crimped on the card key 8.As shown in Figure 1: when this anti-theft lock end was in blocking, card key 8 made inside and outside lock core all can't rotate between the fitting face of outer lock core 3 and housing 1; Figure 3 shows that the longitudinal cross-section structural representation of this anti-theft lock end when blocking, it has provided the relative space position of one group of arc slide 5 and described two bar shaped card keys 8.As shown in Figure 2: after inserting key 12, the symmetrical side tooth on these key both sides will promote the front end of described arc slide 5, make slide 5 move along ring-shaped groove 4, compression slide stage clip 6 makes keyway 7 on slide 5 outer rims move to chute 10 places of outer lock core 3, then under the effect of pellet shot from a slingshot 9, described card key 8 shifts out card key groove 11, enter in keyway 7 and the chute 10, at this moment, lock core is exactly rotary.

In the opening and closing device of the lock of prior art, form a kind of two-in-one structure by interior outer lock core, the main body of unblanking wherein is cylindrical internal cylinder 2, the internal cylinder 2 of this tapered end be easy to by use certain technical unlocking means-for example with instruments such as jackhammer pull out, turn round, brill etc. pries open it or stir, and then open door lock, so its anti-theft feature is perfect inadequately, still there is certain potential safety hazard.And in the above-mentioned anti-theft lock end, owing to described card key 8 is a cylinder form, it is easy to generate in described chute 10 and card key groove 11 and slides or roll, and causes getting stuck or slide fastener of tapered end, thereby has also influenced the stability of unblanking with lock operation.

The utility model content

The purpose of this utility model is to provide a kind of opening and closing device that can overcome the lock of the defective that exists in the prior art, the three-in-one form of structure that outer lock core combined with the cylindrical shape lining in it adopted, after key is extracted out, internal cylinder can arbitrarily be carried out 360 ° of rotations and be locked and can not be unlocked, and feasible all picking lock means at internal cylinder all are difficult to carry out.

Further purpose of the present utility model is to adopt the key piece of given shape to replace columniform card key, makes the groove of special this key piece of placement in its profile and size and the lock mate more, makes the opening and closing operations of this lock more reliable and more stable.

The purpose of this utility model is achieved in that the opening and closing device of this lock comprises housing, is arranged at lock core in this housing, pellet shot from a slingshot, two key pieces etc. rotationally, wherein: described lock core comprises cylindrical internal cylinder, cylindrical shape outer lock core and cylindrical shape lining, described cylindrical internal cylinder is nested in the inside of this cylindrical shape outer lock core, the upper end of this outer lock core is with an end shutoff of described internal cylinder and reach the outside of the opening and closing device of described lock, and described cylindrical shape lining places between this cylindrical internal cylinder and the cylindrical shape outer lock core; The external surface of described internal cylinder is provided with one group of ring-shaped groove perpendicular to axis direction, in each ring-shaped groove, be symmetrical arranged a pair of arc slide and a slide stage clip, the two ends of this slide stage clip are against respectively on this adjacent face to the arc slide, leave certain interval between two other end face of slide, outer rim symmetric position at every pair of arc slide is provided with a keyway respectively, described two key pieces are parallel with axis and be symmetrically placed in the chute that is opened in described outer lock core and lining both sides, opposite position at inner walls and described chute is provided with card key groove, described pellet shot from a slingshot places the card key groove in the housing, and its movable end is crimped on the bottom surface of this key piece.

In addition, described key piece is semi-cylindrical surfaces at the end face adjacent with described arc slide, itself and the rectangular surface of described pellet shot from a slingshot bottom surface adjacent.

Adopt the opening and closing device of lock of the present utility model, the three-in-one structure that described lock core is made of jointly cylindrical internal cylinder, cylindrical shape outer lock core and cylindrical shape lining, replace original internal cylinder as unblanking main body by described cylindrical shape outer lock core, internal cylinder still can arbitrarily be rotated after key is extracted out, thereby can't lock be opened by prying open or stir skilled unlocking skills such as internal cylinder, increase the safe handling characteristic of this lock greatly; In addition, described two key pieces are designed to and the spatial form of the card key groove of the chute of described outer lock core both sides and described inner walls and the profile that size is complementary, when unblanking with locking, this key piece and described pellet shot from a slingshot and groove, chute have bigger contact area between each surface, realized level and smooth and stable moving, be not easy to take place maloperation, thereby improved the application life and the functional reliability of door lock.

Description of drawings

Fig. 1 is the blocking cross sectional representation of prior art anti-theft lock end;

Fig. 2 is the unlocking condition cross sectional representation of anti-theft lock end shown in Figure 1;

Fig. 3 is an A-A cut-away view among Fig. 1;

Fig. 4 is the blocking cross sectional representation of a kind of embodiment of the utility model;

Fig. 5 is the unlocking condition cross sectional representation of a kind of embodiment of the utility model

Fig. 6 is an A-A cut-away view among Fig. 5;

Fig. 7 is the front view of key piece;

Fig. 8 is the vertical view of key piece;

Fig. 9 is the front view of cylindrical internal cylinder;

Figure 10 is the vertical view of cylindrical internal cylinder.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described.

See also accompanying

drawing

4,5, in the present embodiment, the opening and closing device of described lock comprises housing 1, internal cylinder 2, outer lock core 3, cylindrical shape lining 15, pellet shot from a slingshot 9 and two key pieces 80 etc., as shown in Figure 6: described internal cylinder 2 is cylindric, be nested in the inside of described cylindrical shape outer lock core 3, the upper end of this outer lock core 3 is with the top shutoff of described internal cylinder 2 and reach the outside of the opening and closing device of described lock, and described cylindrical shape lining 15 places between this cylindrical internal cylinder 2 and the cylindrical shape outer lock core 3; The lock core of being made up of above-mentioned three assemblies is nested in the described shell 1 and can be rotated.

The external surface of described internal cylinder 2 is provided with one group of ring-shaped groove 4 perpendicular to axis direction, in each ring-shaped groove, be symmetrical arranged a pair of arc slide 5 and a slide stage clip 6, the two ends of this slide stage clip 6 are against respectively on this adjacent face to arc slide 5, leave certain interval between two other end face of slide 5, the inner edge and the outer rim of described arc slide 5 are arc, outer rim symmetric position at every pair of arc slide 5 is provided with a keyway 7 respectively, the shape of this keyway such as Fig. 4,5 are depicted as trapezoidal groove, and the angle of two side is 30 °～120 °.Fig. 9,10 is the structural representation of cylindrical internal cylinder 2, and wherein the opening among Fig. 6 18 should be complementary with the shape of key for key inserts mouth.

See also Fig. 6, offer a belt groove 16 in described cylindrical internal cylinder 2 near on the sidewall on top, be installed with pin 17 with the corresponding height of groove that should go in ring and stretch in this belt groove 16 at the outer wall of described cylindrical shape outer lock core 3, make this cylindrical internal cylinder 2 all can not outwards extract in any case like this, thereby further increased the safe antitheft performance of the opening and closing device of this lock.

As Fig. 7, shown in 8, described key piece 80 and described pellet shot from a slingshot 9 adjacent ends are the cuboid that cross section is a rectangle, at an end adjacent with described arc slide 5 is semicylinder, from Fig. 4, in 5 as can be seen, because the spatial form and the size of the chute 10 of described two key pieces 80 and described outer lock core both sides and the card key groove 11 of described inner walls are complementary, when unblanking with locking, the movable end of this key piece 80 and described pellet shot from a slingshot 9, and has bigger contact area between each inner surface of described groove 11 and chute 10, thereby can realize level and smooth and stable moving, be not easy to take place maloperation.

As shown in Figure 6, described two key pieces 80 are parallel with axis and be symmetrically placed in the chute 10 that is opened in described outer lock core 3 and lining 15 both sides, also be provided with card key groove 11 in the relevant position of inner walls and chute 10, when this lock is in as shown in Figure 4 closure state, the spring of described pellet shot from a slingshot 9 is in compressive state, key piece 80 is held out against, be located between the card key groove 11 of chute 10 on outer lock core 3 and the cylindrical shape lining 15 and housing 1, the side of this key piece 80 will stop the relative displacement between outer lock core and the shell 1, make outer lock core rotate, and this moment, because internal cylinder 2 is not subjected to any stopping, can arbitrarily carry out 360 ° rotation, can not be opened but the difference of it and prior art is the lockset of this moment.As shown in Figure 5: after inserting key 12, the symmetrical side tooth on these key both sides will promote the front end of described arc slide 5, make this slide 5 move along ring-shaped groove 4, compression slide stage clip 6, then make keyway 7 on slide 5 outer rims move to outer lock core 3 and lining 15 on chute 10 relative parts, under the spring action of pellet shot from a slingshot 9, key piece 80 shifts out card key groove 11, whole key piece 80 enters in keyway 7 and the chute 10 fully, at this moment, internal cylinder 2, without any object blocks, outer lock core just can rotate under the drive of internal cylinder, thereby will lock unlatching between lining 15 and outer lock core 3 and the shell 1.

In the opening and closing device of described lock, cylindrical shape lining 15 is set between inside and outside lock core to be separated inside and outside lock core fully, its objective is when internal cylinder 2 when arbitrarily rotation and outer lock core 3 keep static, can ensure that assemblies such as the slide 5 that is installed in internal cylinder 2 ring-shaped grooves 4 and stage clip 6 always are enclosed in this lining 15, maloperation such as slippage can not occur, get stuck, simultaneously, because the existence of this lining 15, when in a single day internal cylinder 2 is pried open, can also increase the difficulty of stirring key piece 80 and pellet shot from a slingshot 9, make that this lockset is difficult to be opened with improper means.

In the present embodiment, the quantity of described pellet shot from a slingshot 9 is two pairs, places card key groove 11 places in the housing 1 respectively, and its fixed end is linked within the outer wall of described shell 1, and its movable end is pressed on the bottom surface of described key piece 80.

For the ease of described arc slide 5 is accurately located when the blocking, on the bottom surface of described ring-shaped groove 4, can also be provided with a pair of restriction protrusion 13, the limited step 14 that the inner edge setting of every pair of arc slide 5 cooperates with restriction protrusion.

Described arc slide 5 can be made circular arc away from each seamed edge of an end of slide stage clip 6, so that the discrepancy of key.

Claims

1, a kind of opening and closing device of lock, comprise housing (1), be arranged at the lock core in this housing (1) rotationally, pellet shot from a slingshot (9), two key pieces (80) etc., it is characterized in that: described lock core comprises cylindrical internal cylinder (2), cylindrical shape outer lock core (3) and cylindrical shape lining (15), described cylindrical internal cylinder (2) is nested in the inside of this cylindrical shape outer lock core (3), the upper end of this outer lock core (3) is with an end shutoff of described internal cylinder (2) and reach the outside of the opening and closing device of described lock, and described cylindrical shape lining (15) places between this cylindrical internal cylinder (2) and the cylindrical shape outer lock core (3); The external surface of described internal cylinder (2) is provided with one group of ring-shaped groove perpendicular to axis direction (4), in each ring-shaped groove, be symmetrical arranged an a pair of arc slide (5) and a slide stage clip (6), the two ends of this slide stage clip (6) are against respectively on this adjacent face to arc slide (5), leave certain interval between two other end face of slide (5), outer rim symmetric position at every pair of arc slide (5) is provided with a keyway (7) respectively, described two key pieces (80) are parallel with axis and be symmetrically placed in the chute (10) that is opened in described outer lock core (3) and lining (15) both sides, opposite position at inner walls and described chute (10) is provided with card key groove (11), described pellet shot from a slingshot (9) places the card key groove (11) in the housing (1) to locate, and its movable end is crimped on the bottom surface of this key piece (80).

2, the opening and closing device of lock according to claim 1 is characterized in that: described key piece (80) is semi-cylindrical surfaces at the end face adjacent with described arc slide (5), itself and the rectangular surface of described pellet shot from a slingshot (9) bottom surface adjacent.

3, the opening and closing device of lock according to claim 1 and 2 is characterized in that: the end that described key piece (80) is adjacent with described pellet shot from a slingshot (9) is the cuboid that cross section is a rectangle, is semicylinder at an end adjacent with described arc slide (5).

4, the opening and closing device of lock according to claim 1 and 2, it is characterized in that: in described cylindrical internal cylinder (2) near offering a belt groove (16) on the sidewall on top, the outer wall of described cylindrical shape outer lock core (3) with should the belt corresponding height of groove be installed with pin (17) and stretch in this belt groove (16).

5, the opening and closing device of lock according to claim 1 and 2, it is characterized in that: the inner edge and the outer rim of described arc slide (5) are arc, the keyway of offering in the suitable location of described outer rim (7) is a trapezoidal groove, and the angle of two side is 30 °～120 °.

6, the opening and closing device of lock according to claim 1 and 2, it is characterized in that: the bottom surface of described ring-shaped groove (4) is provided with a pair of restriction protrusion (13), and the inner edge of every pair of arc slide (5) is provided with the limited step (14) that matches with this restriction protrusion (13).

7, the opening and closing device of lock according to claim 1 and 2 is characterized in that: described arc slide (5) is circular arc away from each seamed edge of an end of slide stage clip (6).

8, the opening and closing device of lock according to claim 1 and 2 is characterized in that: the quantity of described pellet shot from a slingshot (9) is two pairs.