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Hinge structure of steel security door

A hinge structure and steel technology, applied in the field of security doors, can solve problems such as increasing costs, affecting paint life, and overall quality decline

Inactive Publication Date: 2015-04-08
浙江赛银将军门业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such a solution, each hinge needs to add two gaskets, which increases the cost; and the welding operation on the door frame and door leaf will affect the life of the paint and cause a decline in the overall quality

Method used

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  • Hinge structure of steel security door
  • Hinge structure of steel security door
  • Hinge structure of steel security door

Examples

Experimental program
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Embodiment Construction

[0012] See attached picture. Such as figure 1 In the prior art of the present embodiment described above, the steel door is composed of a door frame 2 and a door leaf 3 , the door frame 2 is fixed on the wall, the door leaf 3 can rotate relative to the door frame, and the two are connected by a hinge 6 . The hinge 6 has a pivot and two hinge pieces 62, and the two hinge pieces 62 are respectively fixed to the door frame 2 and the door leaf 3; It is not a plane, but has a protruding step surface; correspondingly, the door frame 2 forms an inwardly retracting step surface in order to cooperate with it, and the hinge piece 12 has a curved ruler-shaped folding surface. At the place where the hinge piece is installed, it is necessary to dig out a part of the surface steel plate of the door frame 2 or the door leaf 3, so that after the hinge piece 12 is installed, it just fills up the part of the digging, thereby still forming a completely fitted plane. The inside of the door fram...

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Abstract

The invention discloses a hinge structure of a steel security door. The hinge structure comprises a door frame, a door leaf and a hinge. The hinged part of the door leaf with the door frame is provided with an anti-prizing projection, a protruding step surface is formed, and the door frame correspondingly forms a recess step surface. The hinge is provided with a pivot and two hinge pieces, the hinge pieces are fixed with the door frame and the door leaf respectively, the combined parts of the surfaces of the door frame and the door leaf with the hinge are provided with an elongated through hole respectively, the hinge pieces penetrate the elongated through holes respectively and extend into the door frame and the door leaf. The hinge pieces are substantially planar and provided with screw holes, and fastening bolts penetrate the surfaces of the door frame and the door leaf respectively and are connected with the hinge pieces in a threaded manner. The hinge pieces are provided with screw holes, and the hinge pieces are used as bases of the bolts. Thus, gaskets in the prior art and welding are omitted, and material quality and thickness of the hinge pieces are generally excellent than other parts, so that the hinge pieces as the bases of the bolts can guarantee firmness of mounting better.

Description

technical field [0001] The invention belongs to the technical field of safety doors, in particular to a hinge structure of a steel door. Background technique [0002] The steel door is composed of a door frame and a door leaf, the surface material of which is stainless steel, the door frame is fixed on the wall, the door leaf can rotate relative to the door frame, and the two are connected by hinges. The hinge has a pivot and two hinge pieces, and the two hinge pieces are respectively fixed with the door frame and the door leaf. In view of the high requirements for safety and firmness of steel doors, the hinge structure is also special. Specifically, the door leaf has an anti-pry protrusion at the hinge joint with the door frame, that is, the door leaf is not a plane here, but has an outwardly convex step surface; correspondingly, in order to cooperate with it, the door frame forms an inwardly retracted step surface. Therefore, the used hinge piece is not a commonly used ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05D3/02E05D5/02
Inventor 陈少林
Owner 浙江赛银将军门业有限公司
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