CN2421378Y - Anti-theft door lock - Google Patents

Abstract

The utility model discloses an anti-theft door lock used on an anti-theft door, comprising a lock body, a lock head, a lock head shifting fork, a lock core, a master lock tongue, a master gear, an upper gear rack, a lower gear rack and an auxiliary lock device. The master lock tongue is provided with a flat gear rack engaged with the master gear, a shifting block plate is movably installed on the master lock tongue, the master lock tongue is provided with a concave surface corresponding to the shifting block plate, one end of the elastomer of the shifting block plate is connected with the shifting block plate, the other end of the shifting block plate is connected with the master lock tongue, and an arc-shaped groove port is provided with a gear shaft. The anti-theft door lock has the characteristics that locking and unlocking are completed at one time, opening is convenient, locking is omni-directional, the anti-breaking performance is favorable, the conversion of left opening and right opening of the anti-theft door is easily realized, etc.

Description

A kind of safe-guard door lock

The utility model relates to a kind of safety lockset, particularly a kind of safe-guard door lock that is used on the security door.

In present prior art, safe-guard door lock has varied, and using commonplace is the security door automatic locking, but security door lockset ubiquity in the past main dead bolt and want screw key two to enclose or three enclose and could dead bolt be locked fully or open, and it is comparatively loaded down with trivial details to unblank; In dead bolt opposite side horizontal direction latch hook is not set, can't realize comprehensive locking simultaneously, at the security door of the different modes of opening the door, L.H.flapped door, R.H.flapped door safe-guard door lock can not be general, can not realize disadvantages such as L.H.flapped door, the exchange of R.H.flapped door safe-guard door lock easily.

In order to overcome the problem of above-mentioned existence, the purpose of this utility model just provide a kind of simple in structure, open convenient, theftproof performance is good and can realize L.H.flapped door easily and a kind of safe-guard door lock that the R.H.flapped door safe-guard door lock exchanges.

For achieving the above object, a kind of safe-guard door lock of the present utility model comprises lock body, tapered end, the tapered end fork, lock core, main dead bolt, master gear, upper rack, following tooth bar and pair locking device, master gear is movably arranged on the gear shaft, upper rack and following tooth bar are meshed with master gear and stretch out lock body, pay dead bolt and have guide groove, stretch out the lock body position and have an inclined-plane, described main dead bolt is provided with the flat tooth bar that is meshed with master gear, the pulling block plate is movably arranged on the main dead bolt, the concave surface corresponding with the pulling block plate arranged on the main dead bolt, the join other end and main dead bolt of pulling block plate elastic body one end and pulling block plate joins, and a gear shaft is arranged on the arc-shaped slot of pulling block plate.

Be connected with horizontal latch hook on the described main dead bolt and stretch out lock body.

Described pair of locking device comprises pays dead bolt, pay the tongue driver blade, pay the tongue connecting rod, pay the tongue back-moving spring, the direction regulating spring, paying tongue pulls out sheet and pays the lock turn-knob, pay dead bolt and have guide groove, stretch out the lock body position and have an inclined-plane, paying the tongue driver blade is movably arranged on the main dead bolt, paying the lock turn-knob is movably arranged on the lock body, paying tongue pulls out sheet and is contained in and pays on the lock turn-knob, paying dead bolt joins with a pair tongue connecting rod, pay the interior pair tongue back-moving spring that also is equipped with respectively of locating hole that the tongue connecting rod is installed in the connecting rod locating piece, direction regulating spring and back-up ring, a pair tongue pulls out sheet B and is arranged between connecting rod locating piece and the back-up ring.

Described safety lock comprise safety lock turn-knob, safety tongue, safety tongue in flakes, safety tongue driver blade, fixed block, safety tongue pull out sheet, bumper bar and relief spring, the safety tongue that safety tongue is housed is contained on the safety tongue alignment pin in flakes, the safety tongue alignment pin is fixed on the lock body, the activity of safety lock turn-knob is contained on the lock body, safety tongue pulls out sheet and is contained on the safety lock turn-knob, safety tongue pulls out sheet and flexibly connects in flakes by safety tongue driver blade and insurance, bumper bar one end and safety tongue that relief spring is housed pull out the sheet flexible connection, and the other end and fixed block flexibly connect.

The utility model is owing to be fixed with the flat tooth bar that is meshed with master gear on the main dead bolt and be movably arranged on pulling block plate on the main dead bolt, one gear shaft is arranged on the arc-shaped slot of pulling block plate, main dead bolt is locked or open one-time-reach-place, simple in structure, unlatching convenience, can lock the upper and lower, left and right four direction simultaneously, antitheft, pick-proof, tamper-proof better effects if, and can change by the fore-and-aft direction of paying dead bolt and be easy to realize that L.H.flapped door and R.H.flapped door safe-guard door lock exchange.

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

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

Fig. 2 is the structural representation of Fig. 1 pulling block board position.

Fig. 3 is the structural representation at Fig. 1 master gear transmission position.

Fig. 1, Fig. 2, shown in Figure 3, a kind of safe-guard door lock of the present utility model comprises lock body 1, tapered end 2, tapered end fork 7, lock core 3, main dead bolt 4, master gear 25, upper rack 35, following tooth bar 19 and pair locking device, main dead bolt 4 position upper-lower position relations are followed successively by elastic body cover plate 28, pulling block plate 10, main dead bolt 4, flat tooth bar 12 and upper rack 35 and following tooth bar 19, tapered end 2 is fixed on the lock body 1 by long fixed screw 38 and tapered end reinforcing prop 37, master gear 25 is movably arranged on the gear shaft 26, upper rack 35 and following tooth bar 19 are meshed with master gear 25 and stretch out lock body 1, for preventing upper rack 35 and following tooth bar 19 move left and right and bob, on lock body 1, be provided with locator card 14 and cover plate steady pin 18; Paying dead bolt 5 has guide groove, stretches out lock body 1 position and have an inclined-plane, main dead bolt 4 is provided with the flat tooth bar 12 that is meshed with master gear 25, pulling block plate 10 is movably arranged on the main dead bolt 4, the concave surface corresponding with pulling block plate 10 arranged on the main dead bolt 4, the join other end and main dead bolt 4 of pulling block plate elastic body 9 one ends and pulling block plate 10 joins, be added with pulling block elastic body cover plate 28 thereon for preventing that pulling block plate elastic body 9 from dropping out, a gear shaft 26 is arranged on the arc-shaped slot 41 of pulling block plate 10.

Be connected with horizontal latch hook 27 on the main dead bolt 4 and stretch out lock body 1, on security door, can install the antitheft pin of horizontal direction as required additional.

Pay locking device and comprise a pair dead bolt 5, pay tongue driver blade 8, pay tongue connecting rod 17, pay tongue back-moving spring 16, direction regulating spring 22, paying tongue pulls out sheet 13 and pays lock turn-knob 24, pay dead bolt 5 and have guide groove, stretch out the lock body position and have an inclined-plane, paying tongue driver blade 8 is movably arranged on the main dead bolt 4 by paying tongue driver blade location lock 11, paying lock turn-knob 24 is movably arranged on the lock body 1, paying tongue pulls out sheet 13 and is contained in and pays on the lock turn-knob 24, paying dead bolt 5 joins with a pair tongue connecting rod 17, pay the interior pair tongue back-moving spring 16 that also is equipped with respectively of locating hole that tongue connecting rod 17 is installed in connecting rod locating piece 23, direction regulating spring 22 and back-up ring 20, a pair tongue pulls out sheet 13B and is arranged between connecting rod locating piece 23 and the back-up ring 20.

Safety lock comprises safety lock turn-knob 33, safety tongue 6, safety tongue in flakes 36, safety tongue driver blade 39, fixed block 32, safety tongue pulls out sheet 34, bumper bar 31 and relief spring 30, the safety tongue that safety tongue 6 is housed 36 is contained on the safety tongue alignment pin 29 in flakes, safety tongue alignment pin 29 is fixed on the lock body 1,33 activities of safety lock turn-knob are contained on the lock body 1, safety tongue pulls out sheet 34 and is contained on the safety lock turn-knob 33, safety tongue pulls out sheet 34 and 36 flexibly connects in flakes by safety tongue driver blade 39 and insurance, bumper bar 31 1 ends and safety tongue that relief spring 30 is housed pull out sheet 34 flexible connections, and the other end and fixed block 32 flexibly connect.

Handle fixing hole 15 fixedly handle plays simultaneously to upper and lower tooth bar location and guide effect, and cover plate steady pin 18 plays upper and lower tooth bar location and guide effect, and safe-guard door lock is installed by installing hole 40.

During use, with key turns tapered end 2 lock cores 3, drive 7 rotations of tapered end fork, the tapered end fork was gone up fork and following fork in 7 minutes, drive this moment and go up fork, tapered end fork 7 promotes the notch that pulling block plate 10 moved and inserted main dead bolt 4, gear shaft 26 leaves the arc-shaped slot 41 bayonet socket places of pulling block plate 10, make the insurance of main dead bolt 4 separating tooth wheel shafts 26, tapered end fork 7 is stirred main dead bolt 4, making the flat tooth bar 12 that is fixed on the main dead bolt 4 drive the master gear 25 that is movably arranged on the gear shaft 26 rotates, master gear 25 rotates and drives upper rack 35, on the following tooth bar 19, following motion and latch hook 27 horizontal movements, when pulling block plate 10 follows main dead bolt 4 to move, also move round the camber line of gear shaft 26 along arc-shaped slot 41; After the main dead bolt 4 of tapered end fork 7 promotions moves into place, tapered end fork 7 breaks away from the notch of main dead bolt 4, because the effect of pulling out sheet elastic body 9, pulling block plate 10 sets back, this moment, the position of gear shaft 26 just was in another bayonet socket place of the arc-shaped slot 41 of pulling block plate 10, and locked main dead bolt 4; Thereby drive the comprehensive lock point in upper and lower, left and right interlock simultaneously.After lock core 3 rotates to an angle again, the last fork of tapered end fork 7 resets and drives fork rotation down, tapered end fork 7 promotes to pay tongue driver blade 8, pay tongue driver blade 8 and promotes to pay a tongue again and pull out sheet 13A, and drive and pay a tongue and pull out sheet 13B and promote back-up ring 20, back-up ring 20 drives to be paid tongue connecting rods 17 and opens a pair dead bolt 5, unclamp lock core 3, under the effect of paying tongue back-moving spring 16, pay dead bolt 5 self-returns, thereby finish the whole process of unblanking.Otherwise, can realize the function of locking equally.

In the time will opening safety lock, rotate safety lock turn-knob 33 drive safety tongues and pull out sheet 34, safety tongue pull out sheet 34 by safety tongue driver blade 39 pulling safety tongues in flakes 36 and safety tongue 6 move horizontally along safety tongue alignment pin 29 and open safety lock, bumper bar 31 plays a role in promoting under the effect of relief spring 30 owing to departing from the center, bumper bar 31 plays safety effect when putting in place under the effect of relief spring 30, vice versa.

During direction that unblank in a left side when changing, unblank in the right side, insert adjustment means and promote to pay tongue connecting rod 17 from the direction adjustment hole 21 of lock body 1, compaction direction regulating spring 22, make pair dead bolt 5 integral body stretch out lock body 1, rotate 360 ° of transposings then and pay dead bolt 5 directions, unclamp adjustment means, under the effect of direction regulating spring 22, pay dead bolt 5 self-returns, thereby realize that unblank in a left side and the right conversion of unblanking.

Claims (5)

1, a kind of safe-guard door lock, comprise lock body, tapered end, the tapered end fork, lock core, main dead bolt, master gear, upper rack, following tooth bar and pair locking device, master gear is movably arranged on the gear shaft, upper rack and following tooth bar are meshed with master gear and stretch out lock body, it is characterized in that: described main dead bolt (4) is provided with the flat tooth bar (12) that is meshed with master gear (25), pulling block plate (10) is movably arranged on the main dead bolt (4), have on the main dead bolt (4) and the corresponding concave surface of pulling block plate (10), the join other end and main dead bolt (4) of pulling block plate elastic body (9) one ends and pulling block plate (10) joins, and on the arc-shaped slot (41) of pulling block plate (10) gear shaft (26) arranged.

2, a kind of safe-guard door lock according to claim 1 is characterized in that: be connected with horizontal latch hook (27) on the described main dead bolt (4) and stretch out lock body (1).

3, a kind of safe-guard door lock according to claim 1, it is characterized in that: described pair of locking device comprises pays dead bolt (5), pay tongue driver blade (8), pay tongue connecting rod (17), pay tongue back-moving spring (16), direction regulating spring (22), paying tongue pulls out sheet (13) and pays lock turn-knob (24), pay dead bolt (5) and have guide groove, stretch out the lock body position and have an inclined-plane, paying tongue driver blade (8) is movably arranged on the main dead bolt (4), paying lock turn-knob (24) is movably arranged on the lock body (1), paying tongue pulls out sheet (13) and is contained in and pays on the lock turn-knob (24), paying dead bolt (5) joins with a pair tongue connecting rod (17), pay the interior pair tongue back-moving spring (16) that also is equipped with respectively of locating hole that tongue connecting rod (17) is installed in connecting rod locating piece (23), direction regulating spring (22) and back-up ring (20), a pair tongue pulls out sheet (13) B and is arranged between connecting rod locating piece (23) and the back-up ring (20).

4, according to claim 1 or 3 each described a kind of safe-guard door locks, it is characterized in that: it also is equipped with safety lock.

5, a kind of safe-guard door lock according to claim 4, it is characterized in that: described safety lock comprises safety lock turn-knob (33), safety tongue (6), safety tongue is (36) in flakes, safety tongue driver blade (39), fixed block (32), safety tongue pulls out sheet (34), bumper bar (31) and relief spring (30), the safety tongue that safety tongue (6) is housed (36) in flakes is contained on the safety tongue alignment pin (29), safety tongue alignment pin (29) is fixed on the lock body (1), safety lock turn-knob (33) activity is contained on the lock body (1), safety tongue pulls out sheet (34) and is contained on the safety lock turn-knob (33), safety tongue pulls out sheet (34) by safety tongue driver blade (39) and insurance (36) flexible connection in flakes, bumper bar (31) one ends and safety tongue that relief spring (30) is housed pull out sheet (34) flexible connection, and the other end and fixed block (32) flexibly connect.

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