CN2176400Y - Safety door lock with a link - Google Patents

Abstract

The utility model relates to a connecting rod type anti-prizing door lock which is composed of a cattle head lock (1), a quadrate hollow door bolt (2), a bolt box (3), a connecting rod (4), a connecting rod handle (5), screw caps (6), installing holes (7), a handle (8), a pad (9), a handle shaft (10), a handle hole jack (12), an inside door handle (12), a fixing bolt bottom board (14), a lock tongue hole (15) and a positioning board (16). The components of the utility model are tightly fixed by the screw caps (6). The inside door handle (12) is fixedly welded on a convex board, and then the cattle head lock (1) is fixedly arranged by corresponding the lock tongue of the cattle head lock (1) to the lock tongue quadrate hole. The utility model which has the advantages of anti-prizing performance, anti-theft performance, easy installation, etc. can be used on doors of families, factories, schools and offices.

Description

Safety door lock with a link

The utility model relates to a kind of single unit system of door lock.

Before the utility model, people are prized the generation of stolen incident in order to prevent door lock, design a kind of novel built-in lock bolt, though can play the purpose of pick-proof and anti-theft, it has some not quite convenient in the use, and is lever.

The utility model purpose just is the device of shape around the telescopic pick-proof door lock of a kind of connecting rod.

Invention main points of the present utility model are: (1) utilization lever principle, end device connecting rod at lever stretches lever under the motion of connecting rod, reach the purpose of bolting the door, (2) built-in lock (cattle head lock) is installed again on this device part, and the purpose that reaches out, locks.

The utility model is by cattle head lock (1), the hollow keeper of square (2), bolt box (3), connecting rod (4), connecting rod handle (5), nut (6), installing hole (7), handle (8), pad (9), Handle axis (10), handle borehole jack (11), inside door handle (12), rivet (13), dead bolt base plate (14), dead bolt hole (15), location-plate accessory devices such as (16) forms.

Advantage of the present utility model: 1, this lock substitutes dead bolt with bar and bolts the door, thereby improves the pick-proof purpose, 2, make simple, easy to use, 3, have pick-proof, an antitheft function.

Concrete structure of the present utility model by under do accompanying drawing and embodiment provides.

Fig. 1 looks schematic diagram for the utility model master

Fig. 2 is the utility model schematic diagram in top down perspective

1 is cattle head lock among the figure, for pinning the flexible usefulness of the hollow keeper of square (2); 2 is the hollow bolt of square among the figure, for the usefulness of tacking an open and close; 3 is the bolt box, and for taking out the fixing usefulness of square Buddhism bolt (2) of dress, and it is corresponding with dead bolt hole (15) on the hollow keeper of square (2) to have a square hole; 4 is connecting rod, and for connecting the usefulness of square hollow core flush door bolt (2) with connecting rod handle (5), 5 is the connecting rod handle, for connecting the usefulness of connecting rod (4) with handle (8); 6 are the solid Handle axis (10) of nut confession dress; 7 is installing hole, and for the solid usefulness on door of the utility model peace, 8 is handle, flexible for the hollow keeper of connecting rod (4) transmission square (2), makes door reach lock, the usefulness of opening; 9 is pad, and for being lined with the usefulness of closing parts, 10 is Handle axis, for connecting rod handle (5) kinematic link, makes the hollow keeper of square (2) flexible, and 11 is the handle borehole jack, for the usefulness that Handle axis (10) is installed; 12 is inside door handle, and function handle (8) is the same, 13 usefulness for riveting tightly relevant parts, 14 is the bolt base plate, for pacifying solid bolt box (3) and connecting rod (4), connecting rod handle (5), handle is in the usefulness on same plane, and 15 is square hole of lock tongue, for the flexible usefulness of the hollow keeper of dead bolt pinning square of cattle head lock (1); 16 is location-plate, for the usefulness of the utility model at the door upper limit is installed

The purpose of this utility model is achieved in that the first step makees a bolt box (3) of laying the usefulness of the hollow keeper of square (2) on bolt base plate (14), and has square hole dead bolt hole (15) correspondence of the hollow keeper of square (2) with it.This integral body is divided into two partly, and is a part of for the usefulness on the doorframe in the middle of being installed in, and another one is for the usefulness that is installed in same straight line doorframe, for corresponding with dead bolt hole (15), on a square hole is arranged.Second goes on foot, and opens a square hole of lock tongue (15) on the certain position of the hollow keeper of square (2), the hollow keeper of square (2) is installed in to have bolt box (3) in the bolt base plate of upward adorning (14) then.The 3rd step, one end of the hollow keeper of the square that installs (2) is connected with rivet with an end of connecting rod (4), the other end of connecting rod (4) is connected with rivet equally with connecting rod handle (5), after the other end of connecting rod handle (5) and handle borehole jack (11) match, and be attached thereto by Handle axis (10), tighten up with nut (6), location-plate (16) is that peace consolidates the usefulness that utility model is located on door, and inside door handle (2) solid welding is on connecting rod handle (5).The 4th step was the corresponding dead bolt hole of dead bolt (15) of cattle head lock (1) to be pacified solid cattle head lock (1) then can.

Claims (1)

1, connecting rod type anti-prying door lock, cattle head lock (1), the hollow keeper of square (2), bolt box (3), connecting rod (4), connecting rod handle (5), nut (6), installing hole (7), handle (8), pad (9), Handle axis (10), handle borehole jack (12), dead bolt base plate (14), dead bolt hole (15), location-plate (16) accessory device forms, it is characterized in that keeper box (3) solid welding on dead bolt base plate (14), and have the dead bolt hole (5) on the hollow keeper of a square hole and square (2) corresponding; The hollow keeper of square (2) and has a dead bolt hole (15) in bolt box (3); Hollow keeper (2) one ends of square and connecting rod (4) are used the rivet load; The other end of connecting rod (4) is with rivet and connecting rod handle (5) load, after the other end of connecting rod handle (5) and handle borehole jack (11) match, be attached thereto and tighten up by Handle axis (10) with nut (6), inside door handle (12) solid welding is so pacified solid cattle head lock (1) with the corresponding square hole of lock tongue of dead bolt (15) of cattle head lock (1) and then can on the connecting rod handle.

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