CN2051663U - Theft-proof door with triple safety guard - Google Patents

Abstract

The utility model relates to a theft-proof door with a triple safety guard, comprising a metal door frame and a grid; a small door lock assembly which can protect an outer door lock hole and a theft-proof built-in lock box are arranged in the middle part of the theft-proof door. The theft-proof door can be arranged on the outer side of the exterior door of a room; the theft-proof purpose can be achieved. The utility model has the advantages of good theft-proof performance, convenient installation and low cost; in particular the theft-proof performance is superior to the present various theft-proof doors.

Description

Theft-proof door with triple safety guard

The utility model relates to a kind of three safety anti-theft doors, belongs to building unit.

According to preliminary search, before the utility model is made, there is not to find identical therewith security door.Take precautions against the door of theft usefulness in the prior art, its structure is actually the combination of a kind of general steel casement door and general door lock, and the dead bolt of this security door and doorframe overlap only 6mm, very easily dropout, so anti-theft effect is unsatisfactory.

The purpose of this utility model provides a kind of security door of three insurances, and it can overcome the deficiencies in the prior art.

Main points of the present utility model are that the inventor has designed an anti-theft built-in lock box and the little door lock assembly that protects the external door lockhole with chain safeties on steel casement door.

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

Fig. 1 is a structural representation of the present utility model.

Fig. 2-4 be respectively the anti-theft built-in lock box the master, bow, left view.

The utility model is made up of doorframe ［ 1 ］, grizzly bar ［ 2 ］, the little door lock assembly ［ 3 ］ that protects the external door lockhole and anti-theft built-in lock box ［ 4 ］.Doorframe ［ 1 ］ is welded with section bar (steel window section, angle steel), grizzly bar ［ 2 ］ is welded in the doorframe ［ 1 ］ with band steel, round steel, protect the middle part that external door lockhole assembly ［ 3 ］ and security door built-in lock ［ 4 ］ are located at doorframe ［ 1 ］, the position of corresponding house external door lockhole is protected external door lockhole assembly ［ 3 ］ and is comprised cover plate, little lock, 3 parts of hinge.Little locking fixes on the cover plate, uses hinge to combine with the steel plate at doorframe ［ 1 ］ middle part again, and locking little lock back shroud can cover house external door lockhole and anti-theft built-in lock box ［ 4 ］.

The structure of anti-theft built-in lock box is shown in Fig. 2-4, and ［ 5 ］ are the magazine shell among the figure, and ［ 6 ］ are lock shaft, ［ 7 ］, ［ 14 ］ and ［ 15 ］ be the lock shaft seat, ［ 8 ］ are the dead axle sheet, ［ 9 ］, ［ 11 ］ they are torsion spring, ［ 10 ］ be interstage sleeve, ［ 12 ］ are locking plate, and ［ 13 ］ are lock shaft, ［ 16 ］ be the lock shaft handle, ［ 17 ］ are the lock shaft button, and ［ 18 ］ are the locking plate button, ［ 19 ］ be the dead axle button, ［ 20 ］, ［ 22 ］ be spring, ［ 21 ］ are the cage knob pin, ［ 23 ］ are that lock shaft is button.Lock shaft ［ 5 ］ is the cylinder of two-section different-diameter (during enforcement can on same round iron rod turning form), which is provided with two is opening the door and a groove that fastens dead axle sheet ［ 8 ］ and locking plate ［ 12 ］ at closing time and an installation lock shaft handle hole of ［ 16 ］ (being positioned at the side of lock shaft seat ［ 15 ］ near lock shaft ［ 6 ］ center) respectively, lock shaft is lock shaft being housed button ［ 23 ］ on ［ 16 ］, lock shaft ［ 6 ］ is installed in lock shaft seat ［ 7 ］, ［ 14 ］, ［ 15 ］ and in the circular hole of built-in lock shell ［ 5 ］ (slightly larger in diameter is in the diameter of lock shaft ［ 6 ］), lock shaft seat ［ 7 ］, ［ 14 ］, ［ 15 ］ be fixed on the built-in lock shell ［ 5 ］, the less end of lock shaft ［ 6 ］ diameter is with spring ［ 20 ］, dead axle sheet ［ 8 ］, the lower end of locking plate ［ 12 ］ is by shelves cover ［ 10 ］, bearing pin ［ 13 ］ is fixed on lock shaft seat ［ 7 ］, ［ 14 ］ inboard, interstage sleeve is with torsion spring ［ 9 on ［ 10 ］, 11 ］, torsion spring ［ 9,11 ］ be stuck in the base plate and the dead axle sheet ［ 8 ］ of shell ［ 5 ］, on the locking plate ［ 12 ］, dead axle button ［ 19 ］ is equipped with in dead axle sheet ［ 8 ］ upper end, cage knob pin ［ 21 ］ is equipped with in locking plate ［ 12 ］ upper end, spring ［ 22 ］ and locking plate button ［ 18 ］, lock shaft button ［ 17 ］ is installed on the house external door doorframe.

The action of the chain safeties in the utility model in the anti-theft built-in lock box ［ 4 ］ is as follows:

Open the door: open the little door lock on the security door, open house external door door lock, locking plate button ［ 18 ］ resets, the twisting lock shaft is ［ 16 ］, compression spring ［ 20 ］, make lock shaft ［ 6 ］ withdraw from lock shaft button ［ 17 ］, when lock shaft ［ 6 ］ retreats to certain position, lock sheet ［ 8 ］ is blocked from the nearer groove of lock shaft ［ 6 ］ head on the lock shaft.

Close the door: shut the house external door earlier, shut security door again, this moment, the house external door withstood locking plate button ［ 19 ］, twisting dead axle button ［ 18 ］, lock shaft ［ 6 ］ promptly inserts lock shaft button ［ 17 ］ automatically, and locking plate ［ 12 ］ is snapped in the groove at lock shaft ［ 6 ］ middle part owing to the effect of torsion spring ［ 11 ］.

After the outer outer side of door in house is installed the utility model, can reach antitheft effect.

The utlity model has good, easy for installation, the with low cost characteristics of theftproof performance, can be applicable to the engineerings such as residential construction and warehouse, office.

Claims (2)

1, a kind of three safety anti-theft doors, it is characterized in that it comprises by doorframe [1], grizzly bar [2], protect the little door lock assembly [3] of external door lockhole and have the anti-theft built-in lock box [4] of chain safeties, there is one in the built-in lock [4] and is provided with two grooves, one the cylinder lock shaft [6] that lock shaft is equipped with the hole of [16] and an end on spring [20] is installed, bearing pin [6] is by 3 lock shaft seats [7,14,15] be installed on the built-in lock shell, lock shaft seat [7,14] there is dead axle sheet [8] inboard, locking plate [12], both lower ends are by shelves cover [10], bearing pin [13] is fixing, the upper end is equipped with dead axle button [19] and cage knob pin [21] respectively, spring [22], locking plate button [18].

2, security door according to claim 1 is characterized in that being located at by the little door lock assembly ［ 3 ］ that protects the external door lockhole that cover plate, little lock, 3 parts of hinge are formed the position of corresponding house, the middle part external door lockhole of security door.

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