CN2828233Y - Cylinder door lock - Google Patents

Abstract

The utility model discloses a cylinder door lock which is characterized in that a lock body and a lock transverse head are respectively arranged at the plane portion of the inlet and the outlet of a latch bolt and extend from the door frame direction to the external edge of a wooden door frame. The top end which extends from the lock transverse head folds to the direction of the lock body vertically so that the folding portion blocks the gap between the original lock body and the lock transverse head, and a flake can not be inserted into the gap to push the latch bolt to pry the door. In this way, on one hand, the cylinder door lock realizes by accident that the existing cylinder door lock needs to be added with a safety to implement the pick-proof function on purpose; on the other hand, the extending position of the lock body and the lock transverse head near the outer end is respectively provided with a grub screw to enhance the mounting fastness. The cylinder door lock avoids that kicking a door makes the lock body fall or makes the wood cracked so that the lock and the transverse head fall together so that the anti-kicking effect is reinforced.

Description

Pin tumbler lock

Affiliated technical field

The utility model relates to a kind of mechanical device of dual fail-safe pin tumbler lock, especially utilizes lock body, dead bolt to block the pin tumbler lock that inserted sheet is forced open the door and prevented to kick door.

Background technology

At present, the external structure of known dual fail-safe pin tumbler lock mainly is made up of lock body, dead bolt, lock cross-peen, handle, stop button, key etc.By the acting in conjunction of inner each associated components of lock body, can be in outdoor locking (clockwise rotate a circle with key then extract) and indoor insurance (stop button clockwise rotates 90 and spends).Usually key operated at outdoor use, indoor rotation handle is opened.But existing pin tumbler lock has two remarkable weakness: its inclined-plane starting point dropped between the slit of lock cross-peen and lock body after one, dead bolt ejected.When the user does not add when insurance because of carelessness or general idea, burglar's common blades, hard plastic sheet etc. promote dead bolt door are pried open from inserting outdoors.Two, three pieces of wood screws of installation lock body are vertical with the shop front, and wood screw has loosening slightly, and chance is kicked door and is drawn out easily; Though it is parallel with doorframe that two pieces of wood screws of lock cross-peen are installed, because of with the doorframe edge only one centimeter thick, meet and kick a wood and easily break and come off together with locking cross-peen.These two weakness have determined existing pin tumbler lock easily to be pried open and kick out, so that lead to the stolen and personal safety accident of property.

Summary of the invention

In order to overcome two weakness of easily being kicked out after existing pin tumbler lock is easily pried open and installed by inserted sheet when not adding insurance, the utility model has been made corresponding improvement to the shape and the size of lock body and lock cross-peen.

The technical scheme that its technical problem that solves the utility model adopts is: lock body, lock cross-peen extend to the doorframe direction in the dead bolt exit respectively, after extending, the lock cross-peen turns back to lock body again, make it block former lock body and the slit of lock between cross-peen, and increase or change out wood screw seat hole at the outer end in extension of lock body, lock cross-peen respectively.

The beneficial effects of the utility model are, the partial function that can replace " dual fail-safe ", effectively the blocking-up inserted sheet is forced open the door, reduction is because of general idea or neglect the potential safety hazard that leads to, its structure is simple equally, it is equally convenient to use, and has strengthened the door lock that is mounted and the firm degree of doorframe, reaches the anti-effect of kicking of pick-proof.

Description of drawings

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

Fig. 1 is the vertical view (part) of existing pin tumbler lock (back is installed).

Fig. 2 is the anti-vertical view (part) of kicking pin tumbler lock (back is installed) of the utility model pick-proof.

Fig. 3 is anti-pin tumbler lock (back is installed) the lock cross-peen left view of kicking of the utility model pick-proof.

Fig. 4 is anti-pin tumbler lock (back is installed) the lock body left view of kicking of the utility model pick-proof.

1. lock cross-peens among each figure, 2. dead bolt (dotted portion, At time of eject position), 3. lock body, 4. stop button, 5. handle, 6. vertical wood screw seat hole, 7. parallel wood screw seat hole with the shop front with the shop front.

The specific embodiment

Lock body in Fig. 2 (3) extends 40mm (wide 65mm in left end dead bolt exit to the timber direction, thick 3mm), each 10mm place of outer end, lock body among Fig. 4 (3) extension opens two wood screw seat holes (7), lock cross-peen (1) among Fig. 2 and extend 46mm (wide 65mm to the timber direction in right-hand member dead bolt exit, thick 3mm), spend 10mm (the wide 65mm that turns back to the right 90 again, thick 5mm), lock cross-peen (1) extension among Fig. 3 and open two wood screw seat holes (7), [two wood screw seat holes (7) cancellation among Fig. 1] by each 10mm of upper and lower both sides, the 16mm place, edge that keeps right.

Claims (2)

1. pin tumbler lock, spring connects dead bolt, handle, lock cross-peen, key are all independently controlled dead bolt and are stretched, stop button, key can be respectively at the inside and outside fixedly dead bolts of door, it is characterized in that: lock body, lock cross-peen extend to the doorframe outward flange in the dead bolt exit to the doorframe direction that is mounted respectively, vertically turn back to lock body one side after the lock cross-peen extends, the part of turning back is blocked the slit between former lock body and lock cross-peen again.

2. according to right 1 described pin tumbler lock, it is characterized in that: lock body, lock cross-peen extend to the doorframe direction that is mounted, and the outer end in extension is increased or changed out wood screw seat hole.

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