CN2557646Y - Multiple theft-proof lock - Google Patents

Abstract

The utility model relates to a multiple theft-proof lock which comprises a lock shell(1), a knob(2), a shifting fork assembly(3), a lock tongue(4) and a lock body plate(7), and in addition a lock catch(9) and a lock head(10), wherein the shifting fork assembly(3) and the lock tongue(4) are arranged on the lock body plate(7) whose one end is arranged to be a U-shaped slot(71); the knob(2) is stuck on the shifting fork assembly(3); the lock shell is buckled above the lock body plate(7); a safety board(8)which is connected with a torsion spring(11) fixed on the lock body is arranged between the shifting fork assembly(3) and the lock body plate(7); a position control device is arranged at the fitting joint of the lock tongue(4) and the shifting fork assembly(3); the back end of the lock body is provided with a safety button(12) which can be pushed in and drawn out. When the safety button (12) is pushed in, the end of the safety button(12) props against the back end of the shifting fork. The lock catch(9) consists of seamless pressed parts A,B, wherein B is sheathed into B to form an integral piece. The utility model, made of stainless steel, is compact in structure, solid, firm, durable and is nice-looking in appearance.

Description

A kind of multiple lock

Technical field

The utility model relates to a kind of lockset, especially a kind of lockset with multiple anti-theft protection function.

Background technology

Along with the demand in market, various lockset products emerge in an endless stream, and the general principle that adopts oblique tongue and safety tongue to cooperatively interact of its structure in order to strengthen anti-theft feature, adopts the safety tongue multisection type to advance or increase the quantity of dead bolt more, makes trouble and the cost height.And for this type of lockset, at outdoor need tapered end is prized, stretching in the keyhole with the instrument of similar sword iron, the rotation shifting fork device can be pried open lock easily.Thereby in the normal life of mouth, can not satisfy real theft-proof requirement, and because tiltedly tongue can be flexible because of clashing into, usually the fortuitous event that owner is locked out can take place simultaneously, bring a lot of inconveniences to life.

The invention scheme

The purpose of this utility model is to provide a kind of pick-proof, prevents that unloading functions is good, has indoor insurance and can prevent the lockset that accident is locked a door.

The utility model is to realize like this, it comprises lock housing, knob, shifting fork assembly, dead bolt and locking body board, also comprise snap close and tapered end, shifting fork assembly and dead bolt are installed on the locking body board, locking body board one end bends to U-lag, U-lag is provided with and the snap close corresponding opening, the dead bolt end is stretched in the U-lag, the knob holding is on shifting fork assembly, lock housing is buckled in locking body board top with shifting fork assembly and dead bolt cover within it, be provided with a safeguard between shifting fork assembly and locking body board, this safeguard is connected with torque spring on being fixed on lock body.

For making the utility model possess indoor insurance function, the lock body rear end is provided with and can advances the stop button of pulling out.

For further strengthening anti-theft feature and preventing to be locked out, dead bolt and shift fork cooperation place are provided with control position device.

For making sturdy and durable, the good looking appearance of product, the utility model adopts all steel manufacturing.

The utility model is provided with safeguard between shifting fork assembly and locking body board, this safeguard is positioned at the position that the shift fork hole is connected with tapered end, sword iron, safeguard is connected with torque spring on being fixed on lock body, must provoke safeguard with special tool at the indoor lock body of taking apart when tapered end is installed, could inject tapered end, when tapered end is transferred in dismounting, safeguard seals the shift fork hole rapidly under the effect of spring, play preventing outdoor dismounting tapered end, with the effect of tamper tool door lock.The lock body rear end is provided with and can advances the stop button of pulling out, when stop button inwardly being advanced stop button pin lockable shift fork, the open and close of control dead bolt.Dead bolt and shift fork cooperation place are provided with a control position device, are all can't unlock deadbolt with screwdriver or bump, the fortuitous event that has strengthened anti-theft feature and can prevent to be locked out.

The drawing explanation

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

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

Fig. 2 is the schematic diagram of the utility model inside;

Fig. 3 is the schematic diagram of the control position device of the utility model dead bolt and shift fork;

Fig. 4 is the exploded view of the utility model snap close;

Fig. 5 is the constitutional diagram of the utility model snap close;

Fig. 6 installs the preceding schematic diagram of tapered end for the utility model;

Fig. 7 installs schematic diagram behind the tapered end for the utility model.

Preferred forms

As Fig. 1, Fig. 5, shown in Figure 6, the utility model comprises lock housing 1, knob 2, shifting fork assembly 3, dead bolt 4 and locking body board 7, also comprise the snap close 9 that is installed on the doorframe and be installed in tapered end 10 on the door, shifting fork assembly 3 and dead bolt 4 are installed on the locking body board 7, locking body board 7 one ends bend to U-lag 71, U-lag 71 is provided with and snap close 9 corresponding opening 72, dead bolt 4 ends are stretched in the U-lag 71, knob 2 holdings are on shifting fork assembly 3, lock housing 1 is buckled in locking body board 7 tops shifting fork assembly 3 and dead bolt 4 is covered within it, between shifting fork assembly 3 and locking body board 7, be provided with a safeguard 8, it is positioned at shift fork hole 33 and tapered end 10, the position that sword iron 101 connects, this safeguard 8 is connected with torque spring 11 on being fixed on lock body, can move up and down under the control of torque spring 11.Must provoke safeguard 8 with special tool at the indoor lock body of taking apart when tapered end 10 is installed, when removing the state in its sealing shift fork hole 33, could insert tapered end 10.Otherwise, when when tapered end 10 is transferred in outdoor dismounting, safeguard 8 seals shift fork hole 33 rapidly under the effect of spring 11, makes outdoor picklock can't stretch into shift fork hole 33 inward turnings transfer fork 31 and opens door lock, play preventing outdoor dismounting tapered end 10, with the effect of tamper tool door lock.

The lock body rear end is provided with and can advances the stop button 12 of pulling out, when being in advanced state, stop button 12 ends are against the recess on projection 312 sides of shift fork rear end, play the effect of locking shifting fork assembly 3,4 open and close of control dead bolt, under this state, all can't stir dead bolt 4 with key and knob 2, play the door lock safety effect.

Dead bolt 4 adopts the stainless steel precision casting to form, and organically cooperates with locking body board, under the effect of shifting fork assembly 3, move up and down, and the purpose that reaches locking or open, snap close 9 is made up of two of unjointed stamping parts A, B, and A is placed in the B and forms a whole.When being in the lock state, dead bolt 4 crosses two holes of snap close 9, respectively be provided with one 90 degree turning 41 on dead bolt 4 and both sides, shift fork 31 cooperation place, shift fork 31 is provided with projection 311, projection 311 makes that shift fork 31 can only be movable between the turning 41 on both sides, thereby the moving range of control dead bolt 4, be all can't unlock deadbolt 4 with screwdriver or bump, only knob 2 dextrorotations are turn 90 degrees or be rotated counterclockwise 90 degree in the outdoor use key could unlock deadbolt 4 indoor, dead bolt 4 and snap close 9 are separated, reached the purpose of unblanking.This design has strengthened the anti-theft feature of lockset on the one hand, has prevented the fortuitous event that quilt is locked out on the other hand, uses more convenient.The lock body bottom is provided with cover plate 13, and it cooperates with lock housing 1 each parts is contained within it, from forming a smooth smooth integral body in appearance.

The utility model adopts stainless steel manufacturing, compact conformation, sturdy and durable, elegant in appearance.

Claims (6)

1, a kind of multiple lock, comprise lock housing (1), knob (2), shifting fork assembly (3), dead bolt (4) and locking body board (7), also comprise snap close (9) and tapered end (10), shifting fork assembly (3) and dead bolt (4) are installed on the locking body board (7), locking body board (7) one ends bend to U-lag (71), U-lag (71) is provided with and snap close (9) corresponding opening (72), dead bolt (4) end is stretched in the U-lag (71), knob (2) holding is on shifting fork assembly (3), lock housing (1) is buckled in locking body board (7) top shifting fork assembly (3) and dead bolt (4) is covered within it, it is characterized in that: be provided with safeguard (8) between shifting fork assembly (3) and locking body board (7), this safeguard (8) is connected with torque spring (11) on being fixed on lock body.

2, a kind of multiple lock according to claim 1, it is characterized in that: dead bolt (4) and shift fork (31) cooperation place are provided with a control position device, and this control device comprises laterally zygomorphic turning (41) that dead bolt (4) is set and the projection (311) on the shift fork (31).

3, a kind of multiple lock according to claim 1 is characterized in that: the lock body rear end is provided with and can advances the stop button (12) of pulling out, and when being in advanced state, stop button (12) end is against the other recess of projection (312) of shift fork rear end.

4, a kind of multiple lock according to claim 1, it is characterized in that: snap close (9) is made up of two of unjointed stamping parts A, B, and A is placed in the B and forms a whole.

5, a kind of multiple lock according to claim 2 is characterized in that: described turning (41) are 90 degree.

6, a kind of multiple lock according to claim 1 is characterized in that: the lock body bottom is provided with cover plate (13).

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