CN219012332U

CN219012332U - Marine fireproof door frame structure

Info

Publication number: CN219012332U
Application number: CN202222832998.4U
Authority: CN
Inventors: 缪亚军; 承叶; 陈建明
Original assignee: Jiangsu Hailu Technology Inc Corp
Current assignee: Jiangsu Hailu Technology Inc Corp
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-05-12
Anticipated expiration: 2032-10-26

Abstract

The utility model discloses a marine fireproof door frame structure, which comprises a quadrilateral cavity, a first extension part and a second extension part, wherein the first extension part extends outwards along a first short side of the quadrilateral cavity and is overlapped with a first long side of an adjacent side, the second extension part extends outwards along a second short side of the quadrilateral cavity and is overlapped with a second long side of the adjacent side, and the first long side of the quadrilateral cavity is provided with a connecting part formed by buckling two separated end parts; the beneficial effects are that: 1. the purpose of reducing polishing quantity after stainless steel welding is achieved due to the integral formation of bending; as the visible surface of the door frame has no welding spots, the surface does not need deep grinding and polishing, the appearance quality of the surface is improved, and the rust resistance of the surface of the door frame is improved; 2. the sealed cavity structure is formed by bending and integral forming, and the structure has higher strength; 3. welding and automatic bending forming are not needed, welding deformation is reduced, and flatness and straightness of the door frame are improved.

Description

Marine fireproof door frame structure

Technical Field

The utility model relates to the technical field of door frames, in particular to a marine fireproof door frame structure.

Background

At present, the stainless steel door frame structure in ship cabin is mainly unanimous with the door frame structure of ordinary steel sheet structure, the solder joint is all on the visible face, as shown in fig. 1, cause door frame surface unevenness, if carry out burnishing and polishing to the solder joint, the burnishing and polishing quantity is great, damage surface after the stainless steel surface burnishing and polishing, easily produce corrosion, moreover, the boats and ships need carry out rust-resistant treatment to it because its special service environment, in the in-process of daily use, thereby guarantee the life of equipment, this has increased burden and economic cost to follow-up maintenance and maintenance, thereby influence the normal use of boats and ships, can not satisfy the abominable service environment of current boats and ships.

Disclosure of Invention

The utility model aims to solve the technical problems, and provides a marine fireproof door frame structure, which is formed by bending steel plates, is buckled by rolling, does not need welding, avoids corrosion caused by welding in a humid environment, has good flatness and good supporting strength.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a marine fire prevention door frame structure, includes the quadrangle cavity to and follow the first extension that the outside extension of first minor face in quadrangle cavity and overlap with the first long limit of adjacent one side and form with the second extension that the outside extension of second minor face in quadrangle cavity and overlap with the second long limit of adjacent one side formed, the first long limit in quadrangle cavity has the connecting portion that forms by the tip lock of two separation.

In order to form a stable connecting part and facilitate processing and forming, a further preferable technical scheme is that the first end part of the connecting part is U-shaped, the second end part of the connecting part is reverse S-shaped, and the front and back sides of the inner side of the quadrangular cavity are buckled into a closed structure in a crossing way.

In order to form the integrated sealing structure, the sealing strip mounting chamber is formed after assembling, and further preferable technical scheme is that the end part of the second extension part is also provided with a bending part extending towards the second long side direction.

In order to have good strength, a further preferable technical scheme is that an acute angle formed by the quadrilateral short side and the quadrilateral long side is 89 degrees.

In order to provide the long side with a relatively flat and complete supporting surface, a further preferred solution is that the connecting portion is located on the side of the first long side close to the second short side.

Compared with the prior art, the utility model has the beneficial effects that: 1. the purpose of reducing polishing quantity after stainless steel welding is achieved due to the integral formation of bending; as the visible surface of the door frame has no welding spots, the surface does not need deep grinding and polishing, the appearance quality of the surface is improved, and the rust resistance of the surface of the door frame is improved; 2. the sealed cavity structure is formed by bending and integral forming, and the structure has higher strength; 3. welding and automatic bending forming are not needed, welding deformation is reduced, and flatness and straightness of the door frame are improved.

Drawings

FIG. 1 is a cross-sectional view of an original door frame of the present utility model;

figure 2 is a cross-sectional view of a door frame according to the present utility model.

In the figure: 10. a quadrangular cavity; 11. a first short side; 12. a first extension; 13. a first long side; 14. a second long side; 15. a connection part; 16. a first end; 17. a second end; 18. a second short side; 19. a second extension; 20. and a bending part.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Examples

As shown in fig. 2, the marine fireproof door frame structure comprises a quadrangular cavity 10, a first extension part 12 extending outwards along a first short side 11 of the quadrangular cavity 10 and overlapped with a first long side 13 on the adjacent side, and a second extension part 19 extending outwards along a second short side 18 of the quadrangular cavity and overlapped with a second long side 14 on the adjacent side, wherein a connecting part 15 formed by buckling two separated end parts is arranged on the inner side of the first long side 13 of the quadrangular cavity 10;

in order to form a stable connecting portion 15 and facilitate processing and forming, further, a first end 16 of the connecting portion 15 is in a U shape, a second end 17 is in an inverted S shape, and the front and back sides inside the quadrangular cavity 10 are crossed and buckled into a closed structure;

in order to form an integrated sealing structure, a sealing strip mounting chamber is formed after assembling, and further, the end part of the second extension part 19 is also provided with a bending part 20 extending towards the direction of the second long side 14;

in order to have good strength, further, the acute angle formed by the quadrilateral short sides (11, 18) and the quadrilateral long sides (13, 14) is 89 degrees;

in order that the first long side 13 has a supporting surface with a relatively flat and complete end, further, the connecting portion 15 is located at one side of the first long side 13 and close to the second short side 18;

the manufacturing process of the door frame comprises the following steps: bending one side of the steel plate upwards by 89 degrees to form a first bending part through a group of continuous forming roller dies, simultaneously bending the other side of the steel plate downwards by 89 degrees to form a second bending part, and forming a first side long edge at the middle part; 180 degrees of the first bending part is downwards bent through a group of continuous forming roller dies, 180 degrees of the second bending part is upwards bent, 89 degrees of the first bending part are bent towards the second bending part through a group of continuous forming roller dies to be parallel to the first side long edge and form a first side short edge, 89 degrees of the second bending part are bent towards the first bending part to be parallel to the first side long edge and form a second side short edge, then the first bending part and the second bending part are crossed and buckled through a group of continuous forming roller dies to form a second side long edge, meanwhile, 180 degrees of the bending part of the first bending part is bent towards the first side long edge to form a protruding bending part, after continuous rolling, as shown in fig. 2, the section of the formed steel plate comprises a quadrilateral cavity, a first protruding part and a second protruding part, wherein the first protruding part extends outwards along one short side of the quadrilateral cavity and is formed by superposing two layers of steel plates, the second protruding part extends outwards along the other short side of the quadrilateral cavity and is formed by superposing two layers of steel plates, the end part of the second protruding part is also provided with a bending part extending towards the long side direction, one end part of the through length of the steel plate is bent to be U-shaped, the other end part of the steel plate is bent to the U-shaped cavity along the outer side of the U-shaped, and the front and back cross buckling of one long side of the quadrilateral cavity is pressed into a closed structure.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a marine fire prevention door frame structure, its characterized in that includes the quadrangle cavity, and along the first minor face of quadrangle cavity outwards extend and with the first extension that the first long limit stack of adjacent one side formed and along the second extension that the second minor face of quadrangle cavity outwards extends and with the second long limit stack of adjacent one side formed, the first long limit of quadrangle cavity has the connecting portion that forms by the tip lock of two separation.

2. A marine fire door frame structure as claimed in claim 1, wherein the first end of the connecting portion is U-shaped and the second end is inverted S-shaped, and the inner sides of the quadrilateral cavities are fastened in a positive and negative crossing manner to form a closed structure.

3. A marine fire door frame structure as claimed in claim 1 or claim 2 wherein the end of the second extension portion further comprises a bend extending in the direction of the second long side.

4. A marine fire door frame structure as claimed in claim 1 or claim 2 wherein the acute angle formed by the shorter sides of the quadrilateral cavity and the longer sides of the quadrilateral cavity is 89 degrees.

5. A marine fire door frame structure as claimed in claim 1 or claim 2 wherein the connection is located on a side of the first long side and adjacent the second short side.