CN2422406Y

CN2422406Y - Automatic pickproof door lock

Info

Publication number: CN2422406Y
Application number: CN 00227780
Authority: CN
Inventors: 张良辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-04-06
Filing date: 2000-04-06
Publication date: 2001-03-07
Anticipated expiration: 2010-04-06

Abstract

The utility model relates to an automatic shift-proof and pick-proof door lock. The utility model is characterized in that the lock comprises a lock casing, a shifting rod, a fixing rod, a main tongue plate, a braking plate, a touching tongue, a main tongue plate spring, a touching tongue spring, a bump and a braking plate spring, wherein, the shifting rod is fixed on a panel of the lock casing and the fixing rod is fixed to the inner side of the panel of the lock casing; the main tongue plate can move back and forth in a guide groove around the fixing rod; the fixing rod passes through a hole of the braking plate; the touching tongue is inserted into a block-clamped hole in a clamped block on the main tongue plate; the main tongue plate spring and the touching tongue spring are respectively sheathed into the tail ends of the main tongue plate and the touching tongue plate; the bump on the braking plate and the braking plate spring at the side of the lock casing are inserted into the fixing rod and clamped respectively by both ends of the fixing rod. The utility model has the advantages of simple structure, easy fabrication, low cost, etc.

Description

The convenient anti-automatically pick-proof door lock that pulls out

The utility model relates to a kind of door lock.

In background technology, China Patent No. is 99236377.2 " a kind of door locks " announced and 99236376.4 " a kind of Door lock made of metal " announced, these two patents are because the restriction of its structure, cause its complex structure, be difficult to produce, defectives such as cost height for overcoming these defectives, are improved it.

The purpose of this utility model is to provide a kind of convenience the automatically anti-pick-proof door lock that pulls out, and it can make effectively, and it is simple in structure, be easy to produce, reduce cost.

The purpose of this utility model is achieved in that

It comprises lock housing, is fixed in the dead man on the lock housing panel;

It also comprises the fixed bar that is fixed in lock housing panel inboard, can in its gathering sill, come and go the main hyoplastron that moves around fixed bar, this main hyoplastron is provided with gathering sill, block, the blocking point, fixture block, nose bar, the recessed safety groove in band insurance location, big tongue, allow fixed bar pass the keep plate in its hole, this keep plate is provided with the hole, support piece, locating piece, the insurance screens, projection, and the insurance screens on the keep plate is located to come and go in the recessed safety groove in the band insurance and is moved, insert on the main hyoplastron in the fixture block limited block that is provided with in the fixture block hole, uvula bump tongue, cover is become owner of hyoplastron tail end and the main hyoplastron spring that bumps the tongue tail end respectively, bump the tongue spring, be inserted on the fixed bar and the keep plate spring of keep plate upper protruding block and lock housing side is blocked at two ends respectively.

It also comprises is fixed in the safeguard that being provided with on the lock housing panel colluded piece.

Described fixed bar is provided with and allows base plate in the lock housing be fixed in internal thread hole on the lock housing.

The utility model is compared the good effect that is produced with background technology:

1, since the utility model only adopted lock housing, dead man, fixed bar, main hyoplastron, keep plate, bumped tongue, main hyoplastron spring, bumped tongue spring, keep plate spring, safeguard, so simple in structure, be easy to production, reduce cost.

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

Fig. 1 is a structure chart of the present utility model.

Fig. 2 is the structure chart of main hyoplastron 5 among Fig. 1.

Fig. 3 is the structure chart of keep plate 14 among Fig. 1.

Fig. 4 is for bumping the structure chart of tongue 22 among Fig. 1.

Fig. 5 is the structure chart of safeguard 27 among Fig. 1.

Referring to accompanying drawing, fixed bar 3 is fixed in lock housing 1 panel inboard, and pass the hole 13 on the keep plate 14, main hyoplastron 5 can come and go in main hyoplastron 5 gathering sills 4 around fixed bar 3 and move, insurance screens 17 on the keep plate 14 comes and goes in main hyoplastron 5 is insured groove 11 and moves, bump tongue 22 and insert on the main hyoplastron 5 in the fixture block 8 in the fixture block hole 19, in the lock housing 1 base plate by screw on the internal thread hole 28 of fixed bar 3.

When opening the door lock, the dead man 2 on lock housing 1 panel is fixed in rotation, this dead man 2 backs down nose bar 9 motions that head on behind the projection 18 on the keep plate 14 on the main hyoplastron 5, at this moment, main hyoplastron spring 23 is compressed, keep plate 14 leaves insurance on the main hyoplastron 5 and locatees recessed 10 and move in its safety groove 11, gathering sill 4 on the main hyoplastron 5 also moves around fixed bar 3 with the motion of main hyoplastron 5, block 6 on the main hyoplastron 5 also heads on the limited block 20 that bumps on the tongue 22 with the motion of main hyoplastron 5 and drives and bump tongue 22 motions, after motion puts in place, the piece 15 that supports on the keep plate 14 props up the limited block 20 that bumps on the tongue 22, locating piece 16 on the keep plate 14 blocks the blocking point 7 on the main hyoplastron 5, at this moment, big tongue on the main hyoplastron 5 12 and bumping in uvula 21 lock housings of indentation simultaneously 1 on the tongue 22, door lock is unlocked.If promote safeguard 27 this moment, collude the inboard that fixture block 8 on the main hyoplastron 5 is withstood in the rear end of piece 26 on the safeguard 27, door lock is opened situation and is being kept always, can not latch because of closing the door.

When latching, with safeguard 27 to promoting with above-mentioned opposite direction, the door-lock-release safety position, as long as door is pushed away the pass, bump the minimum part uvula 21 that stretches out on the tongue 22 and be subjected to the effect of power, tongue spring 24 is bumped in compression, bumping the piece 15 that supports that tongue 22 upper limit position blocks 20 head on the keep plate 14 makes locating piece 16 on the keep plate 14 leave blocking point 7 on the main hyoplastron 5, main hyoplastron spring 23 discharges, force insurance screens 17 on the keep plate 14 on main hyoplastron 5 safety groove 11 and gathering sill 4 in do and above-mentioned rightabout motion, under the effect of keep plate spring 25, insurance in safety groove 11 locatees recessed 10, big tongue 12 on the main hyoplastron 5 and the uvula 21 that bumps on the tongue 22 stretch out outside the lock housing 1, and door is latched.If promote safeguard 27 this moment, the outside that makes the front end that colludes piece 26 on the safeguard 27 withstand fixture block 8 on the main hyoplastron 5, door is in the state of latching always, even outdoors also can't be with door-lock opening with key.

Claims

1, the anti-automatically pick-proof door lock that pulls out of a kind of convenience, it comprises lock housing (1), be fixed in the dead man (2) on lock housing (1) panel, it is characterized in that it also comprises the fixed bar (3) that is fixed in lock housing (1) panel inboard, can in its gathering sill (4), come and go the main hyoplastron (5) that moves around fixed bar (3), this main hyoplastron (5) is provided with gathering sill (4), block (6), blocking point (7), fixture block (8), nose bar (9), the safety groove (11) of band insurance location recessed (10), big tongue (12), allow fixed bar (3) pass the keep plate (14) of its hole (13), this keep plate (14) is provided with hole (13), support piece (15), locating piece (16), insurance screens (17), projection (18), and the insurance screens (17) on the keep plate (14) comes and goes in the safety groove (11) of band insurance location recessed (10) and moves, inserting main hyoplastron (5) goes up in the fixture block (8) and to be provided with limited block (20) in the fixture block hole (19), uvula (21) bump tongue (22), cover is become owner of hyoplastron (5) tail end and the main hyoplastron spring (23) that bumps tongue (22) tail end respectively, bump tongue spring (24), be inserted in that fixed bar (3) is gone up and the keep plate spring (25) of keep plate (14) upper protruding block (18) and lock housing (1) side is blocked at two ends respectively.

2, convenience according to claim 1 is automatically anti-pulls out the pick-proof door lock, it is characterized in that it also comprises to be fixed in the safeguard (27) that being provided with on lock housing (1) panel colluded piece (26).

3, convenience according to claim 1 is automatically anti-pulls out the pick-proof door lock, it is characterized in that described fixed bar (3) is provided with to allow base plate in the lock housing (1) be fixed in internal thread hole (28) on the lock housing (1).