Marine fireproof door hinge device

Abstract

The utility model provides a marine fireproof door hinge device which comprises a plurality of hinges vertically distributed along a fireproof door, an upper hinge and a lower hinge of each hinge are detachably connected with a door body and a door frame of the fireproof door respectively, and a connecting rod is arranged between every two adjacent hinges. A connecting shaft of the upper hinge extends downwards out of the lower hinge to form a first connecting portion, a connecting shaft of the lower hinge extends upwards out of the upper hinge to form a second connecting portion, the upper end of the connecting rod is connected with the first connecting portion through a distance adjusting assembly, and the lower end of the connecting rod is movably connected with the second connecting portion. The position of the hinge can be adjusted, installation is convenient, meanwhile, the strength of the whole hinge is improved, and the fireproof door is effectively prevented from sinking.

Description

Technical Field

[0001] The utility model relates to the technical field of marine fireproof doors, in particular to a hinge device for marine fireproof doors. Background Art

[0002] To ensure fire safety on board, according to ship design specifications, the entire passenger area needs to be divided into multiple fire zones; at the same time, in order to meet the normal passage and emergency escape of passengers, fire doors need to be installed on the dividing boundary surfaces of each fire zone. When a fire occurs, the fire doors will automatically release and close.

[0003] However, the above-mentioned fire door is a normally open fire door. Under the influence of the deadweight of the fire door and the inertial force generated by the ship's turbulence, the hinge position of the fire door is easily deformed, causing the fire door to sink, affecting the normal use of the fire door. At the same time, since the fire door is installed with fixed hinges, the hinge position of the hinge is not adjustable. Therefore, the installation position accuracy of the hinge on the door body and door frame is relatively high. Once the door body moves downward due to gravity during installation and exceeds the tolerance, the installation difficulty is increased. In serious cases, the door body needs to be reworked or replaced. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies of the prior art, the utility model provides a hinge device for a marine fire door, which can adjust the hinge position for easy installation, while improving the strength of the entire hinge and effectively preventing the fire door from sinking.

[0005] The technical solution of the utility model is: a hinge device for a marine fire door, comprising a plurality of hinges vertically distributed along the fire door, the upper hinge and the lower hinge of each hinge being detachably connected to the door body and the door frame of the fire door, a connecting rod is arranged between two adjacent hinges, the lower hinge is extended downward from the connecting axis of the upper hinge to form a first connecting part, the upper hinge is extended upward from the connecting axis of the lower hinge to form a second connecting part, the upper end of the connecting rod is connected to the first connecting part through a distance adjustment component, and the lower end of the connecting rod is movably connected to the second connecting part. The hinges are connected together by the connecting rod, the tension of the door body under the sinking trend on the upper hinge can be transmitted to the connecting rod, and the tension is dispersed by the connecting rod and the lower hinge, compared with the prior art, the strength of the entire hinge device is effectively increased, thereby preventing the fire door from sinking; the distance adjustment component at the upper end of the connecting rod adjusts the vertical displacement of the connecting axis relative to the connecting rod, thereby realizing the adjustment of the hinge position on the connecting axis, and the installation difficulty is reduced through the above-mentioned adaptive adjustment.

[0006] The distance adjustment assembly includes an internal and external thread conversion joint and a double internal thread joint, the external thread end of the internal and external thread conversion joint is threadedly connected to one end of the double internal thread joint, and the first connection part and the upper end of the connecting rod are respectively threadedly connected to the internal thread end of the internal and external thread conversion joint and the other end of the double internal thread joint. By setting the internal and external thread conversion joint and the double internal thread joint, a double nut structure is formed on the first connection part of the connecting shaft, and the internal and external thread conversion joint and the double internal thread joint are separated, so that the length of the first connection part on the internal and external thread conversion joint can be adjusted, thereby realizing the upward movement distance of the connecting shaft relative to the connecting rod, and the internal and external thread conversion joint and the double internal thread joint are connected in coordination, so that the position of the first connection part can be locked to ensure the stability of the connection between the connecting shaft and the connecting rod.

[0007] The outer peripheral walls of the internal and external thread conversion joint and the double internal thread joint are in the shape of a polygonal column.

[0008] A connecting nut is fixed to the lower end of the connecting rod, and the second connecting portion is threadedly connected to the connecting nut.

[0009] There are three hinges, and the vertical distance between the hinge at the middle position and the hinge at the upper position is smaller than the vertical distance between the hinge at the middle position and the hinge at the lower position. The short distance between the hinge at the middle position and the hinge at the upper position can improve the load-bearing strength of the upper part of the entire hinge device for the fire door, thereby further preventing the fire door from sinking.

[0010] The middle part of the connecting shaft of the hinge is sleeved with a plane bearing, and the end faces of the plane bearing are respectively abutted on the two hinges of the hinge. The plane bearing can reduce the friction between the two hinges of the same hinge, thereby improving the smoothness of the opening and closing of the hinge device.

[0011] The beneficial effects of the utility model are as follows: the hinge device forms each hinge into a whole through the connecting rod, thereby effectively increasing the strength of the entire hinge device, and the tension of the door body under the sinking tendency on the upper hinge can be transmitted to the connecting rod, and the connecting rod and the lower hinge disperse the tension, thereby preventing the fire door from sinking; secondly, the distance adjustment component at the upper end of the connecting rod adjusts the vertical displacement of the connecting shaft relative to the connecting rod, thereby realizing the adjustment of the hinge position on the connecting shaft and reducing the difficulty of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure of the utility model installed on a fire door;

[0014] Figure 3 It is a partial cross-sectional view of the hinge located in the middle position of the utility model.

[0015] Figure numerals: 1. door body; 2. door frame; 3. hinge; 301. upper hinge; 302. lower hinge; 303. connecting shaft; 3031. second connecting part; 3032. first connecting part; 304. plane bearing; 4. connecting rod; 5. distance adjustment assembly; 501. internal and external thread conversion joint; 502. double internal thread joint; 6. connecting nut. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the technical solution in the utility model, the technical solution in the utility model is 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 all fall within the protection scope of the utility model.

[0017] like Figure 1-Figure 2 As shown, the utility model provides a marine fire door hinge 3 device, including a plurality of hinges 3 distributed vertically along the fire door, the hinge 3 including an upper hinge 301, a lower hinge 302 and a connecting shaft 303 rotatably connected to the upper hinge 301 and the lower hinge 302, the upper hinge 301 and the lower hinge 301 of each hinge 3 are detachably connected to the door body 1 and the door frame 2 of the fire door, specifically, each hinge is provided with a plurality of through holes, and self-tapping screws pass through the through holes and are fixedly connected to the door body 1 and the door frame 2 of the fire door, in order to reduce the friction between the two hinges on the same hinge 3, a plane bearing 304 is sleeved in the middle of the connecting shaft 303 of the hinge 3, and the end faces of the plane bearing 304 abut against the two hinges of the hinge 3 Page; a connecting rod 4 is provided between two adjacent hinges 3, and the connecting shaft 303 of the upper hinge 3 extends downward from the lower hinge 302 to form a first connecting portion 3032, and the connecting shaft 303 of the lower hinge 3 extends upward from the upper hinge 301 to form a second connecting portion 3031, and the upper and lower ends of the connecting rod 4 are movably connected to the first connecting portion 3032 and the second connecting portion 3031 respectively, and each hinge 3 is formed into a whole through the connecting rod 4. Compared with the independent setting of each hinge 3 in the prior art, the strength of the entire hinge 3 device is effectively increased, and the pulling force from the door body 1 with a sinking tendency on the upper hinge 3 is transmitted to the connecting rod 4, and the pulling force is dispersed by the connecting rod 4 and the lower hinge 3, thereby preventing the fire door from sinking.

[0018] In this embodiment, there are three hinges 3. In order to further improve the load-bearing strength of the upper part of the entire hinge 3 device on the fire door, the vertical distance between the hinge 3 in the middle position and the hinge 3 in the upper position is smaller than the vertical distance between the hinge 3 in the middle position and the hinge 3 in the lower position.

[0019] A distance adjusting component 5 is provided at the upper end of the connecting rod 4, and the two ends of the distance adjusting component 5 are respectively connected to the first connecting portion 3032 and the upper end of the connecting rod 4. The distance adjusting component 5 is used to adjust the vertical displacement of the connecting shaft 303 relative to the connecting rod 4, thereby adjusting the position of the hinge 301 on the connecting shaft 303. The above-mentioned adaptive adjustment can reduce the difficulty of installation.

[0020] Further preferably, Figure 3 The distance adjustment component 5 shown includes an internal and external thread conversion joint 501 and a double internal thread joint 502, the external thread end of the internal and external thread conversion joint 501 is threadedly connected to one end of the double internal thread joint 502, and the first connection part 3032 and the upper end of the connecting rod 4 are respectively threadedly connected to the internal thread end of the internal and external thread conversion joint 501 and the other end of the double internal thread joint 502. By setting the internal and external thread conversion joint 501 and the double internal thread joint 502, a double nut structure is formed on the first connection part 3032 of the connecting shaft 303, and the internal and external thread conversion joint 501 and the double internal thread joint 502 are separated, so that the length of the first connection part 3032 on the internal and external thread conversion joint 501 can be adjusted, thereby realizing the upward movement distance of the connecting shaft 303 relative to the connecting rod 4, and the internal and external thread conversion joint 501 and the double internal thread joint 502 are connected in coordination, so that the position of the first connection part 3032 can be locked to ensure the stability of the connection between the connecting shaft 303 and the connecting rod 4.

[0021] A connecting nut 6 is fixed to the lower end of the connecting rod 4 , and the second connecting portion 3031 is threadedly connected to the connecting nut 6 .

[0022] In order to facilitate the adjustment of the positions of the internal and external thread conversion joint 501 and the double internal thread joint 502, the outer peripheral walls of the internal and external thread conversion joint 501 and the double internal thread joint 502 are polygonal prism-shaped; further preferably, the double internal thread joint 502 is a reducing double internal thread joint 502, the large diameter end of the reducing double internal thread joint 502 is connected to the internal and external thread conversion joint 501, and the small diameter end of the reducing double internal thread joint 502 is connected to the connecting rod 4, and the thread length of the upper end of the connecting rod 4 is not less than the length of the reducing double internal thread joint 502.

[0023] When implementing this technical solution, the personnel assemble the three hinges 3 through the connecting rod 4 and the distance adjustment component 5 in sequence, the lower hinge 302 of each hinge 3 is fixed to the door frame 2 through self-tapping screws, the fire door is lifted to the preset position, and the upper hinge 301 is fixed to the door body 1 through self-tapping screws. At this time, if the door body 1 moves downward and exceeds the installation tolerance, the double internal thread joint 502 of the distance adjustment component 5 is unscrewed and separated from the internal and external thread conversion joint 501, and then the plane bearing 304 on the connecting shaft 303 is pressed to prevent the connecting shaft 303 from rotating relatively, according to the tolerance to be adjusted. The difference is obtained by rotating and moving the internal and external thread conversion joint 501 downward on the connecting shaft 303, and the double internal thread joint 502 is matched with the internal and external thread conversion joint 501 and connected and locked, thereby completing the upward movement of the connecting shaft 303, and driving the upper hinge 301 upward by the plane bearing 304, so as to adjust the door body 1 to within the installation tolerance range; the hinge 3 device provides a better connection strength between the door body 1 and the door frame 2 of the fire door, and the pulling force generated by the sinking of the door body 1 is dispersed on the connecting rod 4 and each hinge 3, thereby effectively preventing the fire door from sinking.

Claims

1. A hinge device for a marine fire door, comprising a plurality of hinges vertically distributed along the fire door, wherein the upper hinge and the lower hinge of each hinge are detachably connected to the door body and the door frame of the fire door, respectively, and characterized in that: A connecting rod is provided between two adjacent hinges, and a lower hinge is extended downward from the connecting axis of the upper hinge to form a first connecting part, and an upper hinge is extended upward from the connecting axis of the lower hinge to form a second connecting part. The upper end of the connecting rod is connected to the first connecting part via a distance adjustment component, and the lower end of the connecting rod is movably connected to the second connecting part.

2. The hinge device for a marine fire door according to claim 1, characterized in that: The distance adjustment assembly includes an internal and external thread conversion joint and a double internal thread joint. The external thread end of the internal and external thread conversion joint is threadedly connected to one end of the double internal thread joint, and the first connecting part and the upper end of the connecting rod are respectively threadedly connected to the internal thread end of the internal and external thread conversion joint and the other end of the double internal thread joint.

3. The hinge device for a marine fire door according to claim 2, characterized in that: The outer peripheral walls of the internal and external thread conversion joint and the double internal thread joint are in the shape of a polygonal column.

4. The marine fire door hinge device according to any one of claims 1 to 3, characterized in that: A connecting nut is fixed to the lower end of the connecting rod, and the second connecting portion is threadedly connected to the connecting nut.

5. The marine fire door hinge device according to any one of claims 1 to 3, characterized in that: The number of the hinges is three, and the vertical distance between the hinge at the middle position and the hinge at the upper position is smaller than the vertical distance between the hinge at the middle position and the hinge at the lower position.

6. The marine fire door hinge device according to any one of claims 1 to 3, characterized in that: A plane bearing is sleeved on the middle part of the connecting shaft of the hinge, and the end faces of the plane bearing are respectively abutted against the two hinges of the hinge.

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