CN2174531Y - Protector of lock pawl body for double-pawl vertical door lock - Google Patents

Abstract

The utility model discloses a protector of a lock pawl body of a double-pawl vertical door lock, comprising a protection plate, a protection plate hole, and a protection sheet. The utility model is characterized in that the shape of the utility model is anastomosed with a lock pawl body, and the condition that the lock pawl body is destroyed by strong force, and ruptures is prevented. The utility model is suitable for a theftproof door lock in the shape of the lock pawl vertically inserting into a kick crank.

Description

Protector of lock pawl body for double-pawl vertical door lock

The utility model relates to the lock pawl body guard member of the rectilinear door lock of two pawls in the fixing construction technique field, comprises backplate, fender eye, bluff piece.

Chinese patent 87204127 discloses a kind of " the rectilinear door lock of two pawls ".When opening the door, in the lock pawl retraction corpus unguis, at closing time, eject and vertical the insertion in the snap close behind the lock pawl collision snap close, lock pawl body generally is an aluminum alloy materials, and it directly plays the effect that door is fastened.The global design of this lock is successful, now extensively promotes the use of.The user finds that lock pawl body is the fragile position of easily being damaged.Have example to show, the metal anti-theft door of this class door lock has been installed, when outwards prizing from crack between a door and its frame usefulness is powerful with things such as drill rods, lock pawl body is stressed to rupture.Existing many security door producers that produces; when adopting this lock; installed the lock pawl body guard member in addition additional, comprised backplate, bluff piece, opening square hole on the backplate; two squares that produced during with punching press side's opening square hole; wherein on one side throw off backplate, another side still connects together with backplate, and is converted into and the backplate state that meets at right angles; promptly become bluff piece, bluff piece nestles up the effect that lock pawl body plays reinforcement.Because the bluff piece area is limited, only can hold the part of lock pawl body side, when being subjected to strong destruction, still unavoidable lock pawl body fracture.

The purpose of this utility model provides the lock pawl body guard member that a kind of protective capability is better than prior art.

Technical solution of the present utility model is: the lock pawl body guard member, backplate, fender eye, bluff piece are arranged, and it is characterized in that bluff piece is crossed over and is welded on the fender eye both sides and forms the arch bridge shape, described arch bridge shape is surrounded lock pawl body and is matched with lock pawl body.

The utility model is held lock pawl body because bluff piece forms the arch bridge shape and lock pawl body coincide from all directions, and intensity increases one times than prior art at least, and the phenomenon of bluff piece or lock pawl body fracture may take place hardly.

Further specify embodiment of the present utility model below in conjunction with accompanying drawing

The A-A view of Fig. 1 Fig. 2

Fig. 2 lock pawl body guard member front view

This embodiment includes the lock pawl body guard member (5) that backplate (1), fender eye (2), bluff piece (3) and installing hole (4) are formed; have square fender eye (2) on the backplate (1); two curve the both sides that arch-shaped bluff piece (3) is welded on fender eye (2) at interval, this embodiment and maple leaf board F5-4 safe-guard door lock (patent No. 87204127) adapted.Pass installing hole (4) with screw and be fixed on and lock, lock pawl body packs in the fender eye (2), and bluff piece (3) is just in time around living the corresponding part of lock pawl body, and has reserved lock pawl activity space.Because bluff piece (3) is arch and has held lock pawl body from all directions, make its intensity multiplication, all with reference to the design decision of door lock, the utility model selects materials conveniently, makes simple, practical reliable for the number of bluff piece (3) and installation dimension.Be widely used in above-mentioned patent door lock and akin door lock thereof.

Claims (1)

1, the lock pawl body guard member of the rectilinear door lock of two pawls has backplate, fender eye, bluff piece, it is characterized in that, bluff piece (3) is crossed over and is welded on fender eye (2) both sides and forms the arch bridge shape, and described arch bridge shape is surrounded lock pawl body and matched with lock pawl body.

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