CN2361777Y

CN2361777Y - Three-way automatic locking anti-theft door lock

Info

Publication number: CN2361777Y
Application number: CN 99207912
Authority: CN
Inventors: 罗保德
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-15
Filing date: 1999-04-15
Publication date: 2000-02-02
Anticipated expiration: 2009-04-15

Abstract

The utility model relates to an anti-theft door lock, particularly a three-way anti-theft door lock with an automatic locking function. The utility model comprises a lock case, a handle, a lock head, a main lock bolt, an upper slide bolt and a lower slide bolt. The utility model is characterized in that the main lock bolt and the upper and the lower slid bolts are made into a rack bar shape; a center gear 23 which is connected with the handle and the lock head is connected with the main lock bolt and the rack bar parts of the upper and the lower slide bolts to form a transmission mechanism; a clamping claw 29 and the gear 23 form an axial safety mechanism; a lock head fixing plate 12, a lock tongue spring 30, a top pin column tongue 32 and a clamping plate 10 form an automatic locking mechanism. The lock has the functions of high safety, drilling prevention, technical unlocking preventiom and dialing prevention in an axial direction. When a door is closed, the main lock bolt and the upper and the lower slide bolts can automatically popup to a locking position without a key.

Description

Three-dimensional automatic locking safe-guard door lock

The utility model relates to a kind of safe-guard door lock, particularly has the three-dimensional safe-guard door lock of automatic locking function.

Existing three-dimensional automatic locking theft-proof door lock structure complexity, its main deficiency are that main dead bolt and slide down bolt can not bear axial static pressure when automatic locking, if make this lockset that insurance function be arranged, must use key back locking, thereby lose the meaning of automatic locking.

The purpose of this utility model is to make three-dimensional automatic locking safe-guard door lock in automatic locking, can also bear the above axial static pressure of 3000 newton, makes it have insurance function.

The main technical schemes that realizes above-mentioned purpose is:

A kind of three-dimensional automatic locking safe-guard door lock, comprise lock box, handle, tapered end, master latch and upper and lower sliding bolt, it is characterized in that: master latch, upper and lower sliding bolt are made spline-simulating, the central gear 23 that links to each other with handle, tapered end links to each other with the section of rack of master latch, upper and lower sliding bolt and constitutes transmission mechanism, constitute axial relief mechanism by claw 29 and gear 23, constitute automatic locking mechanism by tapered end fixed head 12, latch bolt spring 30, ejector pin cylinder tongue 32, clamp 10.The structure of transmission mechanism is: the section of rack of upper and lower sliding

bolt

6,2 lays respectively at the left and right sides of central gear 23, and cylinder hyoplastron 33 is Contraband shape, and spline-simulating is made in its upper end, is positioned at the top of gear 23; Be provided with handle cam 21 between central gear 23 and the handle power transmission shaft, be provided with tapered end cam 24 between the lock core 4 of central gear 23 and tapered end 3; The upward projection 16 of central gear 23 and the projection 27 on the tapered end cam 24 are on same radius, and its lower convexity 40 is positioned at the groove 44 of handle cam 21.The structure of insurance institution is: the wheel at gear 23 has one section safety groove 41 on week, claw 29 is a big little bending, stub end is enclosed within on the column 17, little head end is equipped with

projection

39,38 up and down, upper end projection 39 is circular, lower end projection 38 is pointed, and claw is provided with torsion spring 25, and the position of safety groove 41 is corresponding with the position of claw lower end projection 38 when master latch stretches out.The structure of automatic locking mechanism is: a rectangular latch bolt spring 30 that links to each other with cylinder hyoplastron 33 that is inserted in is stretched out in tapered end fixed head 12 left sides that are arranged on the lock box, upper end cylinder tongue is an ejector pin cylinder tongue 32, the bearing pin 42 of cylinder hyoplastron is provided with a clamp 10, clamp and cylinder tongue 32 touching positions are bent into a swash plate 18 perpendicular to clamp, the clamp other end has a hook groove 43, when master latch was regained, the hook groove just in time was hooked on the clamp pillar 22, and extension spring 8 is arranged on the clamp.

Adopt the safe-guard door lock of technique scheme to have following advantage:

1, tapered end adopts the cross key Anti-drilling lock, has strong security, anti-drilling, anti-technical opening function;

2, lock body is a kind of auto-locking suspension Three-bearing safe-guard door lock, and without key, master latch, slide down bolt can be ejected into latched position automatically, play anti-collision, pick-proof effect simultaneously when door was closed;

3, master latch, when the slide down bolt is ejected into latched position automatically, distinctive safeties can voluntary insurance (without any need for operation) in the lock, makes master latch, slide down bolt can bear the axial compression greater than 3000N, plays the axially anti-usefulness of allocating for.

Below in conjunction with accompanying drawing the utility model is further described.

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

Fig. 2 is the structural representation that removes among Fig. 1 behind cover plate 34, tapered end 3, the tapered end fixed head 12;

Fig. 3 is the A-A sectional view of Fig. 1;

Fig. 4 is the part drawing of claw 29;

Fig. 5 is the part drawing of tapered end cam 24;

Fig. 6 is the part drawing of gear 23;

Fig. 7 is the vertical view of Fig. 6;

Fig. 8 is the upward view of Fig. 6;

Fig. 9 is the part drawing of upper and lower sliding bolt 6;

Figure 10 is the part drawing of handle cam 21.

Mark is among the figure:

1, handle; 2, downslide bolt; 3, tapered end; 4, lock core; 5, key; 6, upper sliding valve; 7, extension spring post; 8, extension spring; 9, lock box; 10, clamp; 11, column; 12, tapered end fixed head; 13, safety plate; 14, pressing plate; 15, screw; 16, projection; 17, column; 18, swash plate; 19, handle power transmission shaft; 20, central gear axis; 21, handle cam; 22, clamp pillar; 23, gear; 24, tapered end cam; 25, torsion spring; 26, reference column; 27, projection; 28, cylinder tongue; 29, claw; 30, latch bolt spring; 31, spring eye cylinder tongue; 32, top lock cylinder tongue; 33, cylinder hyoplastron; 34, cover plate; 35, ejector pin spring; 36, ejector pin; 37, push rod; 38, claw projection; 39, claw projection; 40, projection; 41, safety groove; 42, bearing pin; 43, hook groove; 44, groove.

As shown in the figure, lock body has lock box 9 and cover plate 34, be provided with tapered end fixed head 12 in the inboard of being close to cover plate 34, this fixed head 12 is installed on three columns 11,17,22 that link to each other with the lock box base plate by screw, a rectangular latch bolt spring 30 that links to each other with cylinder hyoplastron 33 that is inserted in is stretched out in fixed head left side, in the central authorities of fixed head cross key tapered end 3 (also can adopt a word key lock certainly) is installed; Be with tapered end cam 24 on the lock core 4 of tapered end 3, it below the tapered end cam gear 23, it below the gear 23 handle cam 21, the handle cam connects handle power transmission shaft 19, the central axis 20 at gear two ends inserts in the axle sleeve of handle power transmission shaft 19 ends respectively and in the axle sleeve of tapered end lock core, makes that gear 23 can be with respect to handle, lock core rotation.The position relation of aforementioned each component can be found out by Fig. 3.

As shown in Figure 4, claw 29 is a big little bending, and stub end is enclosed within on the column 17, can be around column 17 rotations, little head end is provided with

projection

39,38 up and down, upper end projection 39 is circular, and lower end projection 38 is pointed, and the main effect of claw is that its lower end projection 38 can snap in the safety groove 41 of gear, make gear locking and can not rotate, thereby make cylinder tongue, sliding bolt under external force, axially can not bounce back, reach insurance purpose.As shown in Figure 2, on claw, also be provided with torsion spring 25.As shown in Figure 5, a projection 27 is arranged on tapered end cam 24, the projection 16 on this projection and the gear 23 is on same radius, thereby projection 27 can drive 23 rotations of projection 16 driven gears.

The structure of gear such as Fig. 6, Fig. 7, shown in Figure 8, it is by two gears 23 ', 23 up and down " overlapping forming; also can be an overall gear; being designed to two-layer gear is in order to simplify manufacture craft; the upper and lower end at gear is provided with projection 16,40, and the central axis 20 of gear stretches out up and down with lock core and links to each other with the handle power transmission shaft.Have one section safety groove 41 on the circumference of gear, claw 29 snaps in the safety groove 41 under the effect of torsion spring when stretching out state so that master latch is in.

Upper and lower

sliding bolt

6,2 is made spline-simulating, and as shown in Figure 9, the slide down stud structure is identical.

As shown in Figure 2, the section of rack of upper and lower sliding

bolt

6,2 lay respectively at gear 23 about two; Cylinder hyoplastron 33 is Contraband shape, and spline-simulating is made in its upper end, is positioned at gear 20 tops, and the master latch of four cylinder tongue compositions is fixed on the cylinder hyoplastron, and the quantity of cylinder tongue should be not limited to four here, is decided by actual needs; Cylinder hyoplastron 33 is counted from the bottom up by upper and lower two pilot pins 26 location, and the 1st, the 2nd cylinder tongue 28 is the solid cylinder tongue, empty in the 3rd cylinder tongue 31, inserting 30, the 4 cylinder tongues of latch bolt spring in it is ejector pin cylinder tongue 32, is with ejector pin 36, ejector pin spring 35, push rod 37 in it.The bearing pin 42 of cylinder hyoplastron is provided with a clamp 10, clamp 10 is bent into a swash plate 18 perpendicular to clamp 10 with push rod 37 touching positions, clamp 10 other ends have a hook groove 43, this hook groove is hooked in and can makes master latch be locked in retracted state on the clamp pillar 22, also is provided with extension spring 8 on clamp.

The pin box of upper sliding valve 6 lower end positions is provided with a locking mechanism, and as shown in Figure 1, this locking mechanism is made up of safety plate 13, pressing plate 14, screw 15 etc., but its move left and right, the sliding bolt 6 of locking, thus lock gear can not be rotated.

Operating principle of the present utility model is as follows:

Outdoor key 5 is inserted in lock core 4 holes, lock core 4 turns clockwise, drive 24 rotations of tapered end cam, rotate by tapered end cam 24, claw 29 is ejected in gear 23 safety grooves 41, tapered end cam 24 is rotated further, handsetting gear 23 rotations, at profile of tooth effect underdrive tooth bar 6, be retracted to the enable possition, the while is transmission cylinder hyoplastron 33 also, drive cylinder tongue 28 grades and be retracted to the enable possition, at this moment clamp 10 hook groove 43 under the active force of extension spring 8 snaps in the clamp reference column 22, and cylinder tongue 28 grades can not be ejected, and reaches purpose of opening.

Indoor handle 1 is rotated counterclockwise, driving handle power transmission shaft 19 rotates, because the riveted joint of handle cam 21 and handle power transmission shaft 19, handle cam 21 also rotates thereupon, claw 29 is ejected in gear 23 safety grooves 41, handle cam 21 is rotated further, the lower convexity 40 of handsetting gear 23 makes it rotation, under the profile of tooth effect, driving rack 6 is retracted to the enable possition, and also transmission cylinder hyoplastron 33 drives cylinder tongue 20 and is retracted to the enable possition simultaneously, at this moment clamp 10 is under the active force of extension spring 8, snap in the clamp reference column 22, cylinder tongue 29 can not be ejected, reach purpose of opening.

When door is closed, ejector pin 36 is under the active force of doorframe, in lock, bounce back, push rod 37 tops that link to each other with ejector pin 36 make clamp 10 hook grooves 43 break away from clamp pillar 22 to clamp 10, and at this moment cylinder tongue 28 ejects in frame hole under the active force of spring 30 and makes the door locking, claw 29 is under the active force of torsion spring 25 simultaneously, snap in gear 23 safety grooves, gear 23 can not be rotated, reach the purpose that automatically locks sliding bolt 6, cylinder hyoplastron 33, cylinder tongue 28.

Claims

1, a kind of three-dimensional automatic locking safe-guard door lock, comprise lock box, handle, tapered end, master latch and upper and lower sliding bolt, it is characterized in that: master latch, upper and lower sliding bolt are made spline-simulating, the central gear 23 that links to each other with handle, tapered end links to each other with the section of rack of master latch, upper and lower sliding bolt and constitutes transmission mechanism, constitute axial relief mechanism by claw 29 and gear 23, constitute automatic locking mechanism by tapered end fixed head 12, latch bolt spring 30, ejector pin cylinder tongue 32, clamp 10.

2, three-dimensional automatic locking safe-guard door lock according to claim 1, it is characterized in that: the structure of transmission mechanism is: the section of rack of upper and lower sliding bolt 6,2 lays respectively at the left and right sides of central gear 23, cylinder hyoplastron 33 Cheng Xi shapes, spline-simulating is made in its upper end, is positioned at the top of gear 23; Be provided with handle cam 21 between central gear 23 and the handle power transmission shaft, be provided with tapered end cam 24 between the lock core 4 of central gear 23 and tapered end 3; The upward projection 16 of central gear 23 and the projection 27 on the tapered end cam 24 are on same radius, and its lower convexity 40 is positioned at the groove 44 of handle cam 21.

3, three-dimensional automatic locking safe-guard door lock according to claim 1, it is characterized in that: the structure of insurance institution is: the wheel at gear 23 has one section safety groove 41 on week, claw 29 is a big little bending, stub end is enclosed within on the column 17, little head end is equipped with projection 39,38 up and down, and upper end projection 39 is circular, and lower end projection 38 is pointed, claw is provided with torsion spring 25, and it is corresponding with the position of claw lower end projection 38 when master latch stretches out protecting the position of removing groove 41.

4, three-dimensional automatic locking safe-guard door lock according to claim 1, it is characterized in that: the structure of automatic locking mechanism is: a rectangular latch bolt spring 30 that links to each other with cylinder hyoplastron 33 that is inserted in is stretched out in tapered end fixed head 12 left sides that are arranged on the lock box, upper end cylinder tongue is an ejector pin cylinder tongue 32, the bearing pin 42 of cylinder hyoplastron is provided with a clamp 10, clamp and cylinder tongue 32 touching positions are bent into the swash plate 18 of a vertical clamp, the clamp other end has a hook groove 43, when master latch is regained, the hook groove just in time is hooked on the clamp pillar 22, and extension spring 8 is arranged on the clamp.

5, according to claim 1,2,3,4 described three-dimensional automatic locking safe-guard door locks, it is characterized in that: master latch is made up of four cylinder tongues, count from the bottom up, 1st, the 2nd cylinder tongue 28 is the solid cylinder tongue, empty in the 3rd cylinder tongue 31, inserting 30, the 4 cylinder tongues of latch bolt spring in it is ejector pin cylinder tongue 32, is with ejector pin 36, ejector pin spring 35, push rod 37 in it; Master latch links to each other with cylinder hyoplastron 33.

6, according to claim 1,2,3,4 described three-dimensional automatic locking safe-guard door locks, it is characterized in that: the lock box of upper sliding valve 6 lower end positions is provided with a locking mechanism, this locking mechanism is made up of safety plate 13, pressing plate 14, screw 15, but thereby its move left and right locks sliding bolt 6 lock gear 23 can not rotate.

7, according to claim 1,2,3,4 described three-dimensional automatic locking safe-guard door locks, it is characterized in that: tapered end 3 adopts the cross key Anti-drilling lock.

8, according to claim 1,2,3,4 described three-dimensional automatic locking safe-guard door locks, it is characterized in that: central gear 23 is by two gears 23 ', 23 up and down " be formed by stacking.