CN2113319U - Big corner small gap concealed hinge device for theft-proof door - Google Patents

Abstract

The utility model relates to a built-in hidden hinge device for enterprises who produce various anti-theft safety doors and safes. The built-in hidden hinge device which is suitable for various doorframes is provided with a large turning angle and a small gap. The utility model comprises a hinge seat (1), a hinge plate (2), a hinge sleeve (3), and a hinge shaft (4). Therefore, the structure is very simple. The built-in hidden hinge device has the advantages of strong anti-theft performance, beautiful appearance, reliable performance, firm and durable structure, and flexible opening and closing. The coincidence of the shaft axis of the hinge shaft is easy to be ensured. The door can be adjusted for sinking. An oil hole is provided for noise. The ideal built-in hidden hinge device for security doors also has the advantages of low cost and convenient installation.

Description

Big corner small gap concealed hinge device for theft-proof door

The utility model relates to a kind of annex of all kinds of anti-theft safety doors, and particularly destroying door lock, not become to destroy a kind of preventing destructing performance of hinge strong, simple in structure again, the dark platform page or leaf of the little gap of the big corner security door device of dependable performance.

The anti-money safety door of present various performances occurs in succession, and the normal employing at present of the main accessories door hinge on the door is to expose string axle rivet welding formula, as recent Chinese patent application number " 90210133.1 " anti-theft hinge, be characterized in having the pivoted arm of pin shaft hole by two ends, the last lower bearing pin that bearing is housed is respectively in two ends put in pin-and-hole, the other end of pivoted arm is contained on the liner plate of door, by pivoted arm door and doorframe is fused.The linear welding of the former door leaf and doorframe thin plate difficulty is bigger, hinge axial line after the assembling is difficult to guarantee to overlap, and the hinge knocking is easily destroyed by the burglar outside, and the latter has two rotary freedoms, increased wear surface, the required precision height, stiffness is poor, and structure is complicated, hinge frame and door leaf gap are big, corner Xiao Yi does the case condition for thief provides sled, cuts, mill etc., for the common way that addresses this problem is to reinforce the stiffness at hinge place, improves the anti-performance of destroying.Though above method can effectively prevent and prolong the time of destroying the hinge place, thing must have the manufacturing cost that improves hinge, can not be effectively plays the effect of protecting the not stolen molecule of door leaf to destroy easily with hinge is hidden.

The purpose of this utility model is exactly to provide little clearance angle steel door frame of a kind of big corner and all general built-in type steel casement door hinge of section bar doorframe for the enterprise that produces various anti-theft safety doors and various safety cabinets, this device possesses solid and reliable, simple in structure, easy for installation, use flexibly, with various general tools destructions be difficult to herein a kind of novel anti-theft steel casement door blind hinge device of being.

The purpose of this utility model is achieved in that

Two small square holes and an oblong aperture are opened in the front of shape doorframe and side, the small square hole interlude presses semi arch recessed, the long limit of the assembly hinge plate of hinge is penetrated the oblong aperture of hinge frame side, its hinge cover band oil filler point plane falls in two small square holes in hinge frame front, the hinge axis of interlude just in time surely closes with circular arc indentation place of two small square hole interludes, the external part on the long limit of hinge plate is threaded with the place, hinge seat open slot plane that has welded on door leaf external door panel medial surface plane, has just established the rotation relationship of door leaf and the relative motion of hinge side door frame this moment.

The utility model compared with prior art, because the method that adopts only needs respectively to open a slotted hole and two square holes at door leaf and hinge side door frame, two small square holes are put on the hinge cover oil filler point plane of hinge assembly to be fixedly welded on the hinge side door frame, the long limit of hinge plate is threaded with the hinge seat that is fixed on the door leaf, just formed the little gap of big corner blind hinge device, so structure is simple especially, maximum characteristics of the present utility model are: under the situation that hinge does not expose, door can reach 130 degree with the relative hard-over of hinge side door frame, gap when it is closed is 1 millimeter, the open gap is 5 millimeters, door leaf sinks can adjust upward, produce noise oiling regularly, because this device has certain uniqueness, the theftproof performance and the time to rupture of Hinge have been improved greatly, and reached specious, svelteness, door leaf rotates effective Breadth Maximum that any angle does not influence doorframe, the axial line of hinge is easy to reach coincidence during assembling, so this Hinge is opened freely, inspiration is strong, fully guaranteed the service property (quality) of this device, realized solid and reliable, cost is low to be a kind of safe and reliable, preventing destructing performance is strong, is applicable to the built-in type hinge of the novel anti-theft door that various antitheft steel casement doors are equipped.

More than will be described in further detail example of the present utility model in conjunction with the accompanying drawings.

Fig. 1 is the front view of the utility model integral part

Fig. 2 is the B-B sectional view of the utility model Fig. 1

Fig. 3 is the A-A sectional view of the utility model Fig. 1

Fig. 4 is the C-C sectional view of the utility model Fig. 1

Describe details and working condition in detail below in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4 according to the concrete device that the utility model proposes.

This device is the hinge seat ［ 1 ］ by a spill, L-shaped hinge plate ［ 2 ］, and hinge cover ［ 3 ］, hinge axis ［ 4 ］ is formed.

At first the minor face end face of L-shaped hinge plate ［ 2 ］ and the interlude of hinge axis ［ 4 ］ are aligned welding, place, 8 li holes of hinge cover ［ 3 ］ ∮ is inserted in respectively closes and on two spindle noses of axle ［ 4 ］, it is relative with the medial surface in hinge frame ［ 5 ］ front that this cover has the plane of oil filler point, the long limit of hinge plate ［ 2 ］ penetrates from the side of hinge frame ［ 5 ］, making the hinge cover be with the plane of oil filler point to fall in the two positive small square holes of hinge frame ［ 5 ］ is weldingly fixed on the hinge side door frame, the long limit end face of the hinge plate ［ 2 ］ that hinge frame ［ 5 ］ is leant out passes from the oblong aperture of external door panel ［ 6 ］, with direction snap on the hinge seat open slot plane that is weldingly fixed on external door panel ［ 6 ］ inner side plane, hexagon socket head cap screw ［ 7 ］ string spring pad ［ 8 ］ penetrates from two elongated holes on the hinge plate ［ 2 ］, and be connected fasteningly with M8 screwed hole on the hinge seat ［ 1 ］, effectively formed the little gap of big corner blind hinge device.

Claims (3)

1, a kind of annex of security door, particularly to destroying the little gap of a kind of big corner security door blind hinge device that door lock does not become to destroy hinge again, this device is by hinge seat [1], hinge plate [2], hinge cover [3], hinge axis [4] is formed, it is characterized in that: it is two elongated holes of 5 millimeters that the long limit of a, L-shaped hinge plate [2] is drilled with inclined to one side square, and be close to the upper end on hinge seat [1] open slot plane and be connected, its minor face end face is outer tiltedly miter angle, and the intersecting lens at hypotenuse angle overlaps welding with the horizontal cross hairs of end face of hinge axis [4].

The location welding in the small square hole of the positive opposite planar of hinge side door frame [6] of packing into of the plane of hinge cover [3] that b, hinge axis [4] two ends seal in band small stair.

2, security door blind hinge device as claimed in claim 1 is characterized in that the gap between hinge frame ［ 5 ］ and the external door panel ［ 6 ］ is 1 millimeter.

3, security door blind hinge device as claimed in claim 1 is characterized in that the relative hinge interplanting fixed point of hinge plate ［ 2 ］ on the hinge axis ［ 4 ］ rotatablely moves, and hard-over is 130 degree.

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