CN2047692U - Anti-theft door lock - Google Patents

Abstract

The utility model relates to an anti-theft door lock used on a door, mainly comprising a lock tongue shell composed of a lock tongue, an anti-socket reinforcement plate and a tongue protecting plate; a lock composed of a lock tongue covering plate. The utility model has the advantages of simple structure, low cost and convenient operation and has the functions of anti-inserting and anti-kicking for effectively preventing criminals from stealing.

Description

Anti-theft door lock

The utility model is that a kind of door that relates to is gone up use " anti-theft billiards door lock ".

Usually, pin tumbler lock all is equipped with in room, gate or office that people live, and in order to anti-stealing safety, but stolen phenomenon is still had no lack of precedents.According to the analysis of public security department to larceny case: most of larceny case is because the criminal uses some soft thin Sheet material is inserted on the dead bolt inclined-plane, makes dead bolt retraction and inserts and open enter the room crime of pin tumbler lock; The criminal who also has utilizes the fixed head of common pin tumbler lock tongue shell narrow, only is fixed on the door frame edge, and the power of exerting violence slightly, the timber on the door frame limit promptly splits, and dead bolt shell this weakness that then thereupon comes off is kicked open pin tumbler lock and the crime of entering the room with violence.Load onto the dual fail-safe pin tumbler lock, no doubt can take precautions against the bad person and use soft sheeting to insert to open the pin tumbler lock crime of entering the room, but still not anti-playing, in use there are many inconvenience still more, show: 1. close and to use key turns " insurance " more behind the door, otherwise just do not play " insurance " effect, still easily inserted and open by soft sheeting.2. close and to use key turns " insurance " more behind the door, certainly will increase loaded down with trivial details in the formality.3. close and use key turns " insurance " behind the door again, once forming the habit, the normal pass that occurs is rotated " insurance " behind the door unintentionally and an interior relatives can't be gone out.

The purpose of this utility model, exactly in order to overcome above-mentioned drawback, for people provide a kind of simple and practical, can anti-plug, can resist again and play, can play effective preventive effect to bad person's crime of entering the room, and " anti-theft billiards door lock " easy to use.

The utility model is transformed respectively and is formed by dead bolt shell, dead bolt, lock body shell to general pin tumbler lock.Promptly remove the fixed head of general pin tumbler lock tongue shell, bottom on the tongue orifice plate plane that dead bolt hole is arranged, " the anti-plug gusset plate " of continued access one rectangular elbow, with a face along the anti-plug gusset plate of continued access, tongue orifice plate to the equal hyoplastron that protects of another face that thickens both sides, tongue hole constitutes the dead bolt housing assy.The transformation of dead bolt then is the root that suitably increases the dead bolt cuboid.And make it suitably to expose to lock body tongue hole.The transformation of lock body case head is the dead bolt covering plate that continued access one is cuboid on the lock body case head.The formation of lock body assembly, except that the dead bolt covering plate of dead bolt and continued access on the lock body case head, all the other structures are all identical with general pin tumbler lock body.The combination of dead bolt housing assy and lock body assembly promptly constitutes the utility model.

Below in conjunction with accompanying drawing the utility model is specified: (figure one) is dead bolt housing assy front view, (figure two) are dead bolt housing assy vertical view, (figure three) are lock body head front view, (figure four) are lock body head vertical view, and (figure five) are the assembling schematic diagram of the utility model on door.Among the figure:

1---dead bolt shell 2---dead bolt hole

2 one protect hyoplastron to 3---anti-plug gusset plates 4---

5---3 one fixing hole E---dead bolt housing assy

6---lock body shell 7---dead bolt

8---dead bolt covering plate F---lock body assembly

9---door frame 10---doorframe

Now be described with reference to the accompanying drawings structure of the present utility model and action principle.The utility model is combined by dead bolt assembly E and lock body assembly F.The architectural feature of dead bolt housing assy E is: the bottom, tongue orifice plate plane of dead bolt hole 2 is arranged, the anti-plug gusset plate 3 of continued access one rectangular elbow on the dead bolt shell 1; Along a face of the anti-plug gusset plate 3 of continued access, the tongue orifice plate that thickens 2 both sides, tongue hole is equal for protecting hyoplastron 4 to another face; Dead bolt shell 1, anti-plug gusset plate 3 and protect hyoplastron 4, the three is in aggregates with pig iron founding founding, constitutes dead bolt housing assy E.Be drilled with fixing hole 5 on the anti-plug gusset plate 3, the plane that is drilled with fixing hole 5 is wealthyer than common pin tumbler lock tongue shell fixed head plane, and it is trapezoidal to be accumbency, in order to fixing dead bolt housing assy E, has strengthened the anti-ability of playing.The architectural feature of lock body assembly F is: the cuboid root of dead bolt 7 suitably exposes to lock body tongue hole.Dead bolt 7 machines with the metal of the same race of general pin tumbler lock tongue.The head continued access one of lock body shell 6 is the dead bolt covering plate 8 of cuboid, and both are integral with pig iron founding founding.The structure of lock body assembly F except above-mentioned points, all the other are all identical with general pin tumbler lock body.Owing to a right angle elbow is arranged on the anti-plug gusset plate 3 of the present utility model, and with protect hyoplastron 4, dead bolt 7 matches, so soft sheeting can't be inserted on the inclined-plane of dead bolt 7 and make its retraction, thereby play and take precautions against the slotting effect of opening pin tumbler lock of soft sheeting effectively.Another function of protecting hyoplastron 4 on the dead bolt housing assy E be with lock body assembly F on dead bolt covering plate 8 match, be used for: after hiding dead bolt housing assy E and lock body assembly F combination, dead bolt 7 exposes the part root outside the lock body tongue hole, unlikelyly causes apparent sticky feeling.Therefore the lock because the utility model is shut the door after you promptly, and anti-plug, anti-playing use than " dual fail-safe pin tumbler lock " and will make things convenient for manyly.

Obviously: the utility model is simple in structure, and is with low cost, easy to use, and not only anti-plug but also anti-playing can be played effective preventive effect for criminal's crime of entering the room, and a kind of anti-stealing safety usefulness with Social benefit and economic benefit is locked really.

Claims (4)

1, a kind of door that relates to is gone up " the anti-theft billiards door lock " that uses.It is by dead bolt shell 1, dead bolt hole 2, and anti-plug gusset plate 3 protects hyoplastron 4 dead bolt housing assy E that is formed and the lock body assembly that dead bolt covering plate 8 is arranged and constitutes.Its technical characterictic is: the anti-plug gusset plate 3 of bottom continued access one rectangular elbow that the tongue orifice plate plane of dead bolt hole 2 is arranged on the dead bolt shell 1; Along a face of the anti-plug gusset plate 3 of continued access, the tongue orifice plate that thickens 2 both sides, tongue hole is equal for protecting hyoplastron 4 to another face; Dead bolt shell 1, anti-plug gusset plate 3 and protect hyoplastron 4, the three is in aggregates with pig iron founding founding.

2, according to claim one described " anti-theft billiards door lock ".Its technical characterictic is: among the lock body assembly F, the cuboid root of dead bolt 7 suitably exposes.

3, according to claim one described " anti-theft billiards door lock ".Its technical characterictic is: the head of the shell 6 of lock body assembly F, continued access have a tongue that is cuboid to lock covering plate 8, and both are in aggregates with pig iron founding founding.

4, according to claim one described " anti-theft billiards door lock ".Its technical characterictic is: be drilled with fixing hole 5 on the anti-plug gusset plate 3, it is trapezoidal that the plane system that is drilled with fixing hole 5 is accumbency.

Images