Mounting structure for cabin wall door frame of passenger roll cabin

Abstract

The utility model relates to the technical field of ship manufacturing, in particular to a passenger roll cabin wall door frame installation structure which comprises a rectangular door hole formed in a cabin wall, a reinforcing frame is welded and fixed to the inner side of the rectangular door hole, the two sides of the reinforcing frame protrude out of the cabin wall, and a door frame is contained in the reinforcing frame. According to the bulkhead reinforcing structure, it is guaranteed that the bulkhead has anti-deformation strength through the reinforcing frame, meanwhile, the web can bear welding stress generated by welding of the door frame, and therefore deformation of the door frame is avoided, and it is guaranteed that the sealing performance requirement between the door body and the door frame after installation is met.

Description

Technical Field

[0001] The utility model relates to the technical field of shipbuilding, in particular to a ro-ro passenger ship bulkhead door frame installation structure. Background Art

[0002] Due to the numerous functional areas of a ro-ro passenger ship, a large number of door openings need to be opened in the bulkhead of the ship. To meet the requirements of weight reduction, the outer plate of the upper construction area is usually designed to be about 6mm thick. Such thin-walled plates are very prone to stress deformation after the door openings are opened, especially during the segmented lifting process. To avoid the above situation, the bulkhead in the door hole area is usually thickened and a corresponding back reinforcement structure is adopted to strengthen the door hole bulkhead.

[0003] However, although the above-mentioned structural reinforcement method can avoid deformation of the bulkhead in the door hole area, when welding the door frame and the bulkhead structure, the stress generated by welding will be transferred to the door frame because it cannot be released on the bulkhead, thereby causing deformation of the door frame. In severe cases, the corresponding sealing surface between the door frame and the door will fail to meet the sealing requirements. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies of the prior art, the present invention provides a ro-ro passenger ship bulkhead door frame installation structure, which ensures that the bulkhead has sufficient structural strength while preventing welding deformation at the door frame.

[0005] The technical solution of the present utility model is a door frame mounting structure for a passenger / ro-ro ship bulkhead, comprising a rectangular door opening provided in the bulkhead, a reinforcement frame welded and fixed to the inner side of the rectangular door opening, with both sides of the reinforcement frame protruding from the bulkhead. The door frame is housed within the reinforcement frame, and the outer wall of the door frame is welded and fixed to the inner wall of the reinforcement frame via a web. By replacing the back reinforcement structure of the prior art with the reinforcement frame, direct butt welding of the door frame to the bulkhead is avoided while ensuring the bulkhead's deformation resistance. The outer side of the door frame is welded to the reinforcement frame via a web, allowing welding stress generated at the door frame weld to be transferred to the web, thereby preventing door frame deformation and ensuring a good seal between the door body and the door frame after installation.

[0006] The distance between the two sides of the reinforcement frame protruding from the bulkhead is not less than the thickness of the door frame. The large spacing between the two sides of the reinforcement frame can accommodate the door frame in the space surrounded by the reinforcement frame, thereby playing a protective role for the door frame.

[0007] The web is provided with a plurality of brackets spaced apart along the circumference of the door frame. The inner sides of the brackets are welded to the web, and the ends of the brackets are welded to the inner sides of the reinforcement frame. The brackets ensure the structural strength of the web welded between the reinforcement frame and the door frame.

[0008] A toggle plate is arranged at the width center and the height center of the door frame, and at least one toggle plate is arranged at each corner of the door frame.

[0009] The bottom of the rectangular door hole is flush with the cabin floor of the ro-ro passenger ship, and the cross-section of the reinforcement frame is in an inverted U shape.

[0010] The reinforcement frame is formed by integrally bending a metal plate, and the two corners of the reinforcement frame are rounded. The integrally bent reinforcement frame can effectively solve the stress deformation at the corners of the door hole, preventing the door hole from cracking at the corners, thereby further improving the strength of the bulkhead.

[0011] The rounded corners R at the two corners of the reinforcement frame are not less than 100 mm.

[0012] The beneficial effects of the present invention are as follows: the present device replaces the back reinforcement structure in the prior art with a reinforcement frame, thereby ensuring that the bulkhead has anti-deformation strength and avoiding direct welding between the door frame and the bulkhead. The welded web on the outside of the door frame is connected to the reinforcement frame, so that the welding stress generated at the welding point of the door frame can be transferred to the web, thereby avoiding deformation of the door frame and ensuring good sealing between the door body and the door frame after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is the main view of the utility model;

[0015] Figure 3 It is along Figure 2 Cross-sectional view in the AA direction.

[0016] Reference numerals: 1. bulkhead; 2. door frame; 3. door body; 4. reinforcement frame; 5. web plate; 6. bracket. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention are clearly and completely described below in conjunction with the accompanying drawings. Other embodiments obtained by those skilled in the art without making any creative work should fall within the scope of protection of the present invention.

[0018] like Figure 1-Figure 3As shown, the utility model provides a passenger and vehicle ship bulkhead door frame installation structure, including a rectangular door hole provided on the bulkhead 1, and a reinforcement frame 4 is welded and fixed to the inner side of the rectangular door hole. In this embodiment, the bottom of the rectangular door hole is flush with the cabin floor of the passenger and vehicle ship, and the cross-section of the reinforcement frame 4 is an inverted U-shape; in other embodiments, if the bottom of the rectangular door hole is higher than the cabin floor, the reinforcement frame 4 is processed into a rectangular frame body with the same cross-sectional shape as the opening shape of the rectangular door hole; the two sides of the reinforcement frame 4 protrude from the bulkhead 1, and the reinforcement frame 4 accommodates the door frame 2. The reinforcement frame 4 replaces the back reinforcement structure in the prior art, while ensuring that the bulkhead 1 has anti-deformation strength, the direct butt welding of the door frame 2 and the bulkhead 1 is avoided; the outer wall of the door frame 2 is welded and fixed to the inner wall of the reinforcement frame 4 through the web 5, so that the welding stress generated at the welding point of the door frame 2 can be transferred to the web 5, thereby avoiding stress deformation of the door frame 2, thereby ensuring good sealing between the installed door and the door frame 2.

[0019] Furthermore, in order to allow the door frame 2 to be completely accommodated in the space enclosed by the reinforcement frame 4, so as to provide certain protection for the door frame 2, the distance between the two side surfaces of the reinforcement frame 4 protruding from the bulkhead 1 is not less than the thickness of the door frame 2. Preferably, the side width of the reinforcement frame 4 protruding from the bulkhead 1 is 50 mm.

[0020] Further preferably, in order to ensure the structural strength of the web 5 welded between the reinforcement frame 4 and the door frame 2, a number of elbow plates 6 are arranged on the web 5 at intervals along the circumference of the door frame 2, the inner side of the elbow plate 6 is welded to the web 5, and the end of the elbow plate 6 is welded to the inner side of the reinforcement frame 4. Preferably, an elbow plate 6 is arranged at the width center and height center of the door frame 2, at least one elbow plate 6 is arranged at each corner of the door frame 2, and the remaining elbow plates 6 are added at intervals of 500 mm.

[0021] In this embodiment, the reinforcement frame 4 is integrally bent from a metal plate, with two rounded corners. This integrally bent reinforcement frame 4 effectively mitigates stress deformation at the door opening corners, preventing cracking at these corners and further enhancing the strength of the bulkhead 1. Preferably, the rounded corners of the reinforcement frame 4 are no less than 100 mm, and the two top corners of the web 5 are rounded to match the corners of the reinforcement frame 4.

[0022] In this embodiment, the door frame 2 has a size of 2100mm*1000m*100mm, the reinforcement frame 4 is formed by bending a steel plate with a thickness of 8mm and a width of 110mm, and the two rounded corners formed by the bending are R=100mm. The web 5 is made of a U-shaped cut steel plate with a thickness of 8mm and a width of 100mm, and the bracket 6 is made of a steel plate with a thickness of 8mm, a length of 90mm and a width of 45mm. In the initial stage of construction, the reinforcement frame 4 is welded to the inner side of the rectangular door hole of the bulkhead 1 to ensure the strength of the door hole area during hoisting. When installing the door frame 2, the web 5 is spot-welded to the outer side of the door frame 2 in advance, and the door frame 2 with the web 5 is placed in the reinforcement frame 4. The web 5 and the inner wall of the reinforcement frame 4, and the web 5 and the outer wall of the door frame 2 are fully welded respectively. Figure 3 As shown, the door frame 2 is arranged with 5 elbow plates 6 in the length direction and 3 elbow plates 6 in the width direction. The end face and inner side face of the rib plate are fully welded to the inner wall of the reinforcement frame 4 and the outer surface of the web 5 respectively. There is no welding deformation of the door frame 2 after installation, and the sealing requirements are met between the door body 3 and the door frame 2. In addition, the construction difficulty is low and the promotion is good.

Claims

1. A ro-ro passenger ship bulkhead door frame mounting structure, comprising a rectangular door hole provided on the bulkhead, characterized in that: A reinforcement frame is welded and fixed to the inner side of the rectangular door hole, and both sides of the reinforcement frame are protruding from the bulkhead. The door frame is accommodated in the reinforcement frame, and the outer wall of the door frame is welded and fixed to the inner wall of the reinforcement frame through the web. A plurality of elbow plates are arranged on the web at intervals along the circumference of the door frame, the inner side of the elbow plate is welded to the web, and the end of the elbow plate is welded to the inner side of the reinforcement frame, wherein an elbow plate is arranged at the width center and height center of the door frame respectively, and at least one elbow plate is arranged at each corner of the door frame.

2. The ro-ro passenger ship bulkhead door frame mounting structure according to claim 1, characterized in that: The distance between the two side surfaces of the reinforcement frame protruding from the bulkhead is not less than the thickness of the door frame.

3. The ro-ro passenger ship bulkhead door frame mounting structure according to claim 1 or 2, characterized in that: The bottom of the rectangular door hole is flush with the cabin floor of the ro-ro passenger ship, and the cross-section of the reinforcement frame is in an inverted U shape.

4. The ro-ro passenger ship bulkhead door frame mounting structure according to claim 3, characterized in that: The reinforcement frame is formed by integrally bending a metal plate, and two corners of the reinforcement frame are rounded.

5. The ro-ro passenger ship bulkhead door frame installation structure according to claim 4, characterized in that: The rounded corners R at the two corners of the reinforcement frame are not less than 100 mm.

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