CN2450315Y - Built-in bolt for improving theftproof power of door lock - Google Patents

Abstract

The utility model relates to a built-in bolt for improving theft-proof power of a door lock. The utility model is proposed in order to provide a lock part which has the advantages of good theft-proof performance and safety. The built-in bolt for improving theft-proof power of a door lock comprises a move guide sheet, an auxiliary lock bolt, a pivoting element, a spring butting element and a rotary button. The move guide sheet is provided with a sleeving foot, an inserting foot and a guide notch. The auxiliary lock bolt is bound to a door body through the head part of a T-shaped sheet and the tail part of the T-shaped sheet is provided with a circular arc hole which is in a shape like the Chinese character 'tu'. The pivoting element is a cylinder which is provided with a pivoting section with a smaller diameter and a square hole. The one sides on the upper section of the cylinders are extended to be provided with sleeving columns and the bottom faces on the ends are provided with positioning column. Both ends of the spring butting element which is bended into a V-shaped are provided with a ring-shaped sleeving part. The handle part of the rotary button is extended to be provided with a square column.

Description

Strengthen the dark bolt of door lock theftproof

The utility model belongs to lock assembly, particularly a kind of dark bolt of strengthening the door lock theftproof.

As shown in Figure 1, known door lock system by lock housing body 10a, locking closure 20a, be arranged at core 30a, the screening group 40a between lock housing body 10a and the locking closure 20a, main lock bolt 50a and dead bolt actuation mechanism 60a combines.Core 30a system is arranged in lock housing body 10a and the corresponding lock core hole 11a of locking closure 20a, the 21a fixed, the stage casing is pivoted with and drives piece 31a, drive piece 31a and can be subjected to knob or key driven rotary, screening group 40a system is arranged at core 30a side, and it can be subjected to core 30a to drive the drive of piece 31a and control main lock bolt 50a and shrink back and unblank or two-part projection locking.Be combined with movable straight-line displacement on its surface in addition and make moving plate 41a.Dead bolt actuation mechanism 60a comprises dead bolt group 61a, revolves dialing part 62a and sliding piece 63a.Wherein dead bolt group 61a is subjected to flexible member butted, and perseverance has the elastic force that stretches out lock housing body 10a; Revolve dialing part 62a and sliding piece 63a system and be hubbed at dead bolt group 61a back segment side, revolving dialing part 62a can be subjected to door knob pivot interlock and drive the dead bolt group 61a formation unlocking condition of shrinking back, in addition sliding piece 63a can up be dialled to the making moving plate 41a of screening group 40a by the drive piece 31a of core 30a and interlock rotates, and then drives the dead bolt group 61a formation unlocking condition of shrinking back.

As mentioned above, though known door lock can provide locking antitheft usefulness by main lock bolt 50a, its still easy stolen person utilizes special unlocking tool, cooperate skillfully to unblank skill and open, thereby anti-theft feature still dislikes not enough, and then influences home safety.

The purpose of this utility model provides the dark bolt of good, the safe and reliable reinforcement door lock theftproof of a kind of antitheft usefulness.

The utility model comprises leads moving plate, secondary lock bolt, pivoting member, butted element and knob; Lead moving plate and be the L shape of bending, its riser portion upper end is provided with the noose pin, and the lower end is provided with inserts the slotting knot pin of tying in lock housing body base plate spliced eye, and its transverse sheet portion stage casing is provided with the guiding breach; Secondary lock bolt system is sleeved on breechblock in the lock housing body side plate door bolt hole by T shape sheet head is fixed with front end, and the T shape reel end section that is placed in the guiding breach is provided with circular arc convex shape hole; Pivoting member is that upper and lower end is provided with respectively than the path pivot and ties in lock housing body and locking closure pivot hole the cylinder that articulates section and be provided with square opening, its epimere one lateral margin extends pole, the place is provided with the noose post in the nearly cylinder of pole end face, and the pole end face is provided with is inserted in reference column in the secondary lock bolt circular arc convex shape hole; Butted element is bending (く) shape, and its two ends are respectively equipped with and are placed in pivoting member noose post and lead round casing-joining part on the noose pin of moving plate riser portion upper end; Knob has shank, extends the square column of and slotting knot corresponding with the pivoting member square opening in the shank inner face.

Wherein:

Circular arc convex shape hole upside forms the pushing and pressing part on the secondary lock bolt, and each forms the downside two ends to recess.

Butted element stage casing is provided with the several bullet circles that preferable elasticity are provided and avoid elastic fatigue.

Because comprising, the utility model leads moving plate, secondary lock bolt, pivoting member, butted element and knob; Leading moving plate is provided with the noose pin, inserts knot pin and guiding breach; Secondary lock bolt is the fixed breechblock of T shape sheet head that is provided with circular arc convex shape hole by rear; Pivoting member articulates section and is provided with the cylinder of square opening for being provided with than path, and its epimere one lateral margin extends that end face is provided with the noose post and end face is provided with reference column; Be the butted element of bending (く) shape two ends and be provided with the round casing-joining part; The knob shank extends square column.When desiring the dark bolt of locking, by within doors with the shank of hand manipulation knob, make the square column of knob drive the pivoting member rotation, the reference column of pivoting member is taken advantage of a situation break away from the recess that supports of circular arc convex shape hole downside one end on the secondary lock bolt, and enter in the pushing portion of circular arc convex shape hole upside, secondary lock bolt is passed toward the lock housing body outside, and this moment, butted element system was twisting states; Lock a door when pair and to pass to the precalculated position, the reference column of pivoting member promptly snaps in supporting in the recess of the secondary lock bolt circular arc convex shape hole downside other end by the elastic force of butted element, makes secondary lock bolt have suitable positioning action, and finishes block action.When desire was opened dark bolt, the backward rotation knob made secondary lock bolt and pivoting member homing, can finish breakdown action; Promptly by the one group of dark bolt of plain type that is arranged in the door lock, and can be by the knob of the dark bolt of manual mode operation within doors, make secondary lock bolt stretch and form blocking toward lateral process, to strengthen the antitheft usefulness of door lock, and then lifting safety at home, be that antitheft usefulness is good, safe and reliable, thereby reach the purpose of this utility model.

Fig. 1, be known door lock internal construction schematic isometric.

Fig. 2, establish door lock decomposition texture schematic isometric of the present utility model for group.

Fig. 3, establish door latch structure schematic isometric of the present utility model for group.

Fig. 4, establish door latch structure diagrammatic side view of the present utility model for group.

Fig. 5, be the utility model action schematic diagram.

Fig. 6, be the utility model structural representation lateral view (blocking).

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

As shown in Figure 2, the utility model 70 is to be mounted on to comprise lock housing body 10, locking closure 20, be arranged on the door lock of core 30, screening group 40, main lock bolt 50 and dead bolt actuation mechanism 60 of 20 of lock housing body 10 and locking closures.

Default knot hole 12 and the pivot-juction hole 14 inserted on lock housing body 10 base plates, the default door bolt of its side plate hole 13.

Locking closure 20 is preset lock core holes 21 and is bored a hole 22.

Core 30 is to be arranged in the corresponding lock core hole 11,21 of lock housing body 10 and locking closure 20 fixedly, and its stage casing is pivoted with the drive piece 31 that can be subjected to knob or key driven rotary; Screening group 40 is arranged at core 30 sides, and it can be driven by the drive piece 31 of core 30 and control main lock bolt 50 and shrink back and unblank or two-part projection locking, and what be combined with movable straight-line displacement on screening group 40 surfaces makes moving plate 41.

Dead bolt actuation mechanism 60 comprises dead bolt group 61, revolves dialing part 62 and sliding piece 63.Dead bolt group 61 is subjected to flexible member butted, and perseverance has the elastic force that stretches out lock housing body 10; Revolve dialing part 62 and sliding piece 63 and be hubbed at dead bolt group 61 back segment sides, revolve dialing part 62 and can be subjected to door knob pivot interlock, to drive the dead bolt group 61 formation unlocking condition of shrinking back.Sliding piece 63 can up be dialled to the making moving plate 41 of screening group 40 by the drive piece 31 of core 30 and interlock rotates, and then drives the dead bolt group 61 formation unlocking condition of shrinking back.

The utility model 70 comprises leads moving plate 71, secondary lock bolt 72, pivoting member 73, butted element 74 and knob 75.Lead moving plate 71 and be the L shape of bending, its riser portion upper end is provided with noose pin 711, and the lower end is provided with inserts knot pin 712, and its transverse sheet portion stage casing is provided with guiding breach 713.Secondary lock bolt 72 is by the fixed breechblock 722 of T shape sheet 721 heads, and T shape sheet 721 rears are provided with circular arc convex shape hole 723, and each forms and supports recess to form pushing and pressing part and two ends respectively in circular arc convex shape hole 723 upper and lower sides.Pivoting member 73 articulates section 732 and is provided with the cylinder 731 of square opening 733 for upper and lower end is provided with respectively than path, its epimere one lateral margin extends pole 734,731 places are provided with noose post 735 in the nearly cylinder of pole 734 end faces, and pole 734 end face are provided with reference column 736.Butted element 74 is bending (く) shape, and its stage casing is provided with several bullet circles 741, preferable elasticity is provided and avoids elastic fatigue by number bullet circle 741, and butted element 74 two ends are respectively equipped with round casing-joining part 742.Knob 75 has shank 751, extends square column 752 in shank 751 inner faces.

As shown in Figure 3, Figure 4, combination is during the utility model 70, holds and inserts knot pin 712 and will lead moving plate 71 and insert to tie in the slotting knot hole 12 default on lock housing body 10 base plates and fix to lead moving plate 71 riser subordinates; Be sleeved in the default door bolt hole 13 of lock housing body 10 side plates with secondary lock bolt 72 breechblocks 722 front ends, in the guiding breach 713 that makes secondary lock bolt 72T shape sheet 721 1 lateral margins be placed on leading moving plate 71 to form supporting role; Be placed on pivot knot in the lock housing body 10 base plates default pivot-juction hole 14 with pivoting member 73 lower ending pivots knot section 732, make the reference column 736 of pivoting member 73 be inserted in the circular arc convex shape hole 723 of secondary lock bolt 72; With the round casing-joining part 742 at butted element 74 two ends respectively noose make the reference column 736 of pivoting member 73 fasten the recess that supports by the elastic force of butted element 74 in the noose post 735 of pivoting member 73 and lead on the noose pin 711 of moving plate 71 riser portions upper end in the circular arc convex shape hole of secondary lock bolt 72 723 downsides, one end; Cover locking closure 20 on the lock housing body 10 and the lock knot; Pass the perforation 22 that locking closure 20 is preset with the square column 752 of knob 75, insert and tie in the square opening 733 of pivoting member 73, promptly finish the combination of dark bolt 70.

As shown in Figure 5, when desiring the dark bolt of locking the utility model 70, by within doors with the shank 751 of hand manipulation knob 75, make the square column 752 of knob 75 drive pivoting member 73 rotations, the reference column 736 of pivoting member 73 is taken advantage of a situation break away from the recess that supports of circular arc convex shape hole 723 downsides, one end on the secondary lock bolt 72, and enter in the pushing portion of circular arc convex shape hole 723 upsides, secondary lock bolt 72 is passed toward lock housing body 10 outsides, this moment, butted element 74 was to be twisting states, when pair is locked a door 72 passing to the precalculated position, as shown in Figure 6, the reference column 736 of pivoting member 73 promptly snaps in supporting in the recess of the secondary lock bolt 72 circular arc convex shape holes 723 downside other ends by the elastic force of butted element 74, make secondary lock bolt 72 have suitable positioning action, and finish block action.

When desire was opened the utility model 70, backward rotation knob 75 made secondary lock bolt 72 and pivoting member 73 homings, can finish breakdown action.

As mentioned above, by the one group of plain type that is arranged in the door lock the utility model 70 that is dark bolt, and can be, make secondary lock bolt 72 stretch and form blocking toward lateral process by the knob 75 of manual mode operation the utility model 70 within doors, with the antitheft usefulness of reinforcement door lock, and then promote safety at home.

Claims (3)

1, a kind of dark bolt of strengthening the door lock theftproof is characterized in that it comprises to lead moving plate, secondary lock bolt, pivoting member, butted element and knob; Lead moving plate and be the L shape of bending, its riser portion upper end is provided with the noose pin, and the lower end is provided with inserts the slotting knot pin of tying in lock housing body base plate spliced eye, and its transverse sheet portion stage casing is provided with the guiding breach; Secondary lock bolt system is sleeved on breechblock in the lock housing body side plate door bolt hole by T shape sheet head is fixed with front end, and the T shape reel end section that is placed in the guiding breach is provided with circular arc convex shape hole; Pivoting member is that upper and lower end is provided with respectively than the path pivot and ties in lock housing body and locking closure pivot hole the cylinder that articulates section and be provided with square opening, its epimere one lateral margin extends pole, the place is provided with the noose post in the nearly cylinder of pole end face, and the pole end face is provided with is inserted in reference column in the secondary lock bolt circular arc convex shape hole; Butted element is bending (く) shape, and its two ends are respectively equipped with and are placed in pivoting member noose post and lead round casing-joining part on the noose pin of moving plate riser portion upper end; Knob has shank, extends the square column of and slotting knot corresponding with the pivoting member square opening in the shank inner face.

2, the dark bolt of reinforcement door lock theftproof according to claim 1 is characterized in that circular arc convex shape hole upside forms the pushing and pressing part on the described secondary lock bolt, and each forms the downside two ends to recess.

3, the dark bolt of reinforcement door lock theftproof according to claim 1 is characterized in that several bullet circles that described butted element stage casing is provided with to be provided preferable elasticity and avoid elastic fatigue.

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