CN2380644Y - Anti-pick door lock capable of locking by internal and outernal handle - Google Patents

Abstract

The utility model relates to an anti-prizing door lock capable of locking by an inner and an outer handles, which comprises a lock casing, an anti-prizing apparatus, a big lock tongue, a lock core, a four-corner tongue and the inner and the outer handles, wherein, the rear part of the big lock tongue is connected with a big lock tongue connecting support and the big lock tongue is connected with the big lock tongue connecting support; the rear part of the big lock tongue connecting support is connected with two sliding plates and a rotary block is provided with square holes which are connected with each other by the handles. The utility model is characterized in that the rear part of the lock core is provided with a lock head switch with one convex end and a switch block for the four-corner tongue is provided with round pins which are matched with an inclined slot at the lower end of the four-corner tongue; a plurality of connecting rods drive the round pins on the switch block of the four-corner tongue to slide and lock the four-corner tongue. The utility model has the advantages of simple structure and easy operation and the lock tongue can be locked without a key.

Description

The pick-proof door lock that a kind of available inside and outside handle is locked

The utility model relates to a kind of door lock, the Door lock guarding against prizing that particularly a kind of available inside and outside handle is locked.

At present general pick-proof door lock is cumbersome in use, needs with key rotation lock core with the locking dead bolt.

The purpose of this utility model provides pick-proof door lock easy to use simple in structure.

The technical solution of the utility model is the pick-proof door lock that a kind of available inside and outside handle of design is locked, comprise lock housing, anti-picking device, big dead bolt, lock core, four jiaos of tongues, inside and outside handle, connect a big dead bolt frame linking behind the big dead bolt, big dead bolt is connected with big dead bolt frame linking, connect two slide plates behind the big dead bolt frame linking, two slide plates are cooperated by two turn-off pieces of correspondence, the turn-off piece has a controll block to match, there is square hole to connect on the turn-off piece by handle, it is characterized in that: the tapered end switch that the back of lock core has an end to protrude, with the groove fit on one or four jiaos of tongue switch blocks, there is a round pin upper end of four jiaos of tongue switch blocks, round pin cooperates with the skewed slot of four jiaos of hypogloeeis ends, on four jiaos of tongue switch blocks a flange is arranged, rotating shaft is arranged on the flange, be with a connecting rod in the rotating shaft, the other end of connecting rod connects another connecting rod by rotating shaft, this connecting rod cooperates with slide plate, the tapered end switch of the protrusion of lock core and one connects piece and cooperates, there is concave groove the upper end that connects piece, concave groove cooperates with the nose of a rotation sheet, there is a shaft hole to cooperate on the rotation sheet with rotating shaft on the housing, the other end of rotation sheet cooperates with the round pin of four jiaos of hypogloeeis ends, be with another group tongue connecting rod in the rotating shaft on the housing, an end of dialling the tongue connecting rod cooperates with big dead bolt frame linking, and the other end of group tongue connecting rod cooperates with the company piece.

The utility model has the advantages that simple in structure easy to usely, can lock dead bolt without key.

Below in conjunction with accompanying drawing the utility model is elaborated,

Accompanying drawing 1 is the structural representation that lock of the present utility model is opened,

Accompanying drawing 2 is that lock of the present utility model closes the structural representation of finishing,

Accompanying drawing 3 is the structural representation of four jiaos of tongues of the utility model figure,

Accompanying drawing 4 is the structural representation of four jiaos of tongue switch blocks of the utility model figure,

Accompanying drawing 5 is the structural representation of company's piece of the utility model figure

Comprise lock housing 1 among the figure, anti-picking device 29, big dead bolt 2, lock core 3, four jiaos of tongues 4, inside and outside handle square hole 5, big dead bolt 2 backs connect a big dead bolt frame linking 6, big dead bolt 2 is connected with big dead bolt frame linking 6, big dead bolt frame linking 6 backs connect two slide plates 7, two slide plates 7 are cooperated by two turn-off pieces 8 of correspondence, turn-off piece 8 has a controll block 9 to match, there is square hole 5 to connect on the turn-off piece 8 by handle, it is characterized in that: the tapered end switch 10 that the back of lock core 3 has an end to protrude, tapered end switch 10 cooperates with groove 12 on one or four jiaos of tongue switch blocks 11, the lower end of four jiaos of tongue switch blocks 11 has a leaf spring 19 to cooperate, there is a round pin 14 upper end of four jiaos of tongue switch blocks 11, round pin 14 cooperates with the skewed slot 15 of four jiaos of tongue 4 lower ends, one flange 16 is arranged on four jiaos of tongue switch blocks 11, rotating shaft 17 is arranged on the flange 16, be with a connecting rod 18 in the rotating shaft 17, connecting rod 18 other ends connect another connecting rod 22 by rotating shaft 21, this connecting rod 22 cooperates with turn-off piece 8 and slide plate 7, the tapered end switch 10 of the protrusion of lock core 3 and one connects piece 23 and cooperates, there is concave groove 24 upper end that connects piece 23, concave groove 24 cooperates with the nose of a rotation sheet 25, there is a shaft hole 27 to cooperate on the rotation sheet 25 with rotating shaft 28 on the housing 1, the other end of rotation sheet 25 cooperates with the round pin 13 of four jiaos of tongue 4 lower ends, be with another group tongue connecting rod 26 in the rotating shaft 28 on the housing 1, an end of dialling tongue connecting rod 26 cooperates with big dead bolt frame linking 6, and the other end of group tongue connecting rod 26 cooperates with company piece 23.If rotational lock core 3 not, but lift rotation on the handle, handle square hole 5 is rotated back turn-off piece 8 by handle and rotates counterclockwise, top connecting rod 22 on the turn-off piece 8, connecting rod 22 drives the flange 16 of four jiaos of tongue switch blocks 11 by rotating shaft 17 by rotating shaft 21 drivening rods 18, four jiaos of tongue switch blocks 11 are rotated, and the round pin 14 on it from top to bottom slides along skewed slot 15, also can make four jiaos of tongues stretch out lock housing 1.

When door is opened, big dead bolt 2 stretches out, contract in four jiaos of tongues 4, leaf spring 19 is with four jiaos of tongue switch blocks, 11 location, because the top round pin 14 of four jiaos of tongue switch blocks 11 is in the skewed slot 15 of four jiaos of tongue 4 lower ends, make four jiaos of tongues 4 location shape that contracts in being in, when lock core 3 tapered end switches 10 rotate counterclockwise, even piece 23 up moves, and drives to dial tongue connecting rod 26 28 rotations around the shaft, moves in the big dead bolt frame linking 6 of an end band of group tongue connecting rod 26, when lock core 3 tapered end switches 10 clockwise rotate, drive four jiaos of grooves 12 on the tongue switch block 11 and rotate, the round pin 14 of four jiaos of tongue switch block 11 upper ends toward lower slider, makes four jiaos of tongues 4 stretch out lock housing 1 along four jiaos of tongues, 4 skewed slots 15 simultaneously.

When door is closed, big dead bolt 2 stretches out, four jiaos of tongues 4 stretch out, the turning cell Internal handle rotates turn-off piece 8 by square hole 5, turn-off piece 8 drives slide plate 7 and moves down, slide plate 7 is with big dead bolt frame linking 6 to glide together, connecting rod 22 is by 7 times tops of slide plate, the connecting rod 18 that is connected by rotating shaft 21 is pulled, connecting rod 18 drives flanges 16 by rotating shaft 17 and drives four jiaos of tongue switch blocks 11, is pulled to the upper end of skewed slot 15 by round pin 14 along skewed slot 15, contracts in four jiaos of tongues 4, leaf spring 19 is with four jiaos of tongue switch blocks, 11 location, also can be without swing handle, but rotating switch 10 rotates counterclockwise, switch 10 drives four jiaos of tongue switch blocks 11 and rotates, also round pin 14 is pulled to the upper end of skewed slot 15 along skewed slot 15, makes in four jiaos of tongues 4 and contract.

Claims (1)

1. The Door lock guarding against prizing that a kind of available inside and outside handle is locked, comprise lock housing, anti-picking device, big dead bolt, lock core, four jiaos of tongues, inside and outside handle, connect a big dead bolt frame linking behind the big dead bolt, big dead bolt is connected with big dead bolt frame linking, connect two slide plates behind the big dead bolt frame linking, two slide plates are cooperated by two turn-off pieces of correspondence, the turn-off piece has a controll block to match, there is square hole to connect on the turn-off piece by handle, it is characterized in that: the tapered end switch that the back of lock core has an end to protrude, groove fit on tapered end switch and one or the four jiaos of tongue switch blocks, the lower end of four jiaos of tongue switch blocks has a leaf spring to cooperate, the upper end of four jiaos of tongue switch blocks is a round pin, round pin cooperates with the skewed slot of four jiaos of hypogloeeis ends, on four jiaos of tongue switch blocks a flange is arranged, rotating shaft is arranged on the flange, be with a connecting rod in the rotating shaft, the other end of connecting rod connects another connecting rod by rotating shaft, this connecting rod cooperates with slide plate, the tapered end switch of the protrusion of lock core and one connects piece and cooperates, there is concave groove the upper end that connects piece, concave groove cooperates with the nose of a rotation sheet, there is a shaft hole to cooperate on the rotation sheet with rotating shaft on the housing, the other end of rotation sheet cooperates with the round pin of four jiaos of hypogloeeis ends, be with another group tongue connecting rod in the rotating shaft on the housing, an end of dialling the tongue connecting rod cooperates with big dead bolt frame linking, and the other end of group tongue connecting rod cooperates with the company piece.

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