A reinforced fire shutter door

Abstract

The utility model discloses a reinforced fire shutter door, including a door frame, a door body and a reinforcement structure. The door frame is formed by enclosing two transverse frames and two longitudinal frames; the door body is movably connected to the door frame; the reinforcement structure is arranged on the inner side of the door frame, and the reinforcement structure includes a first reinforcement member and a second reinforcement member, wherein the first reinforcement member is a T-shaped member, which is arranged at the connection between the transverse frame and the longitudinal frame, and the longitudinal section of the first reinforcement member is fixedly connected to the longitudinal frame, and the transverse section is fixedly connected to the transverse frame, and the second reinforcement member is in a "mouth"-shaped structure, and the second reinforcement member includes mutually connected transverse bars and vertical bars, the transverse bars are fixedly connected to the transverse frame, the vertical bars are fixedly connected to the longitudinal frame, and the second reinforcement member covers the first reinforcement member; the fastening bolts penetrate the longitudinal frame and the end of the transverse frame and are threadedly connected. The reinforcement structure can increase the stability of the door frame while providing support for the door frame, thereby effectively preventing the door frame from bending or folding.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling shutter doors, in particular to a reinforced fire-fighting rolling shutter door. Background Art

[0002] Fire shutter doors typically consist of a door frame, door body, and retracting mechanism. Made entirely of metal, they offer fire and theft protection. When a fire breaks out inside a building or a strong wind blows outside, the door body is directly impacted by the flames or wind, and the door frame is susceptible to bending or deformation under the influence of the door body. However, current technology only secures the horizontal and vertical frames of the door frame with welding or bolts, which provides limited stability. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a reinforced fire shutter door. The reinforced structure can increase the stability of the door frame while also providing support for the door frame, thereby effectively preventing the door frame from bending or folding.

[0004] The technical solution of the utility model is as follows:

[0005] A reinforced fire shutter door comprises a door frame, a door body and a reinforcement structure. The door frame is formed by enclosing two transverse frames and two longitudinal frames; the door body is movably connected to the door frame; the reinforcement structure is arranged on the inner side of the door frame, and the reinforcement structure comprises a first reinforcement member and a second reinforcement member, wherein the first reinforcement member is a T-shaped member, which is arranged at the connection between the transverse frame and the longitudinal frame, and the longitudinal section of the first reinforcement member is fixedly connected to the longitudinal frame, and the transverse section is fixedly connected to the transverse frame, the second reinforcement member is in a "mouth"-shaped structure, the second reinforcement member comprises interconnected transverse bars and vertical bars, the transverse bars are fixedly connected to the transverse frame, the vertical bars are fixedly connected to the longitudinal frame, and the second reinforcement member covers the first reinforcement member; the fastening bolt passes through the longitudinal frame and is threadedly connected to the end of the transverse frame.

[0006] Preferably, convex strips are provided at the inner edges of the transverse frame and the longitudinal frame, and grooves are formed between adjacent convex strips, and the second reinforcement member is located in the grooves.

[0007] Furthermore, the height of the convex strips is greater than or equal to the thickness of the horizontal strips and the vertical strips.

[0008] Preferably, a T-shaped slot is provided at the connection between the transverse frame and the longitudinal frame, and the T-shaped slot is located between adjacent convex strips, and the first reinforcement piece is embedded in the T-shaped slot.

[0009] Preferably, the width of the horizontal strip is 8-10 mm smaller than the width of the horizontal frame, and the width of the vertical strip is 8-10 mm smaller than the width of the vertical frame.

[0010] Preferably, the lengths of the transverse section and the longitudinal section of the first reinforcement are both set between 4-8 cm.

[0011] Specifically, the first reinforcement member and the second reinforcement member are fixedly connected to the transverse frame and the longitudinal frame by screws.

[0012] Preferably, the transverse section and the longitudinal section of the first reinforcement member are an integrated structure.

[0013] Preferably, the transverse frame and the longitudinal frame are both made of aluminum alloy profiles, and a plurality of reinforcing ribs are arranged in the cavity thereof.

[0014] The beneficial effects of the present invention are:

[0015] A first T-shaped reinforcement is fixed at the connection between the transverse frame and the longitudinal frame of the door frame, thereby increasing the stability of the transverse frame and the longitudinal frame. In addition, a second U-shaped reinforcement is fixed on the inner side of the door frame. The horizontal bars and vertical bars of the second reinforcement are respectively fixedly connected to the transverse frame and the longitudinal frame of the door frame. While increasing the stability of the door frame, it can also provide better support for the door frame, thereby effectively preventing the door frame from bending or folding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By reading the detailed description of the preferred embodiment below, the solutions and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not to be considered as limiting the present invention.

[0017] In the attached figure:

[0018] Figure 1 This is a schematic diagram of the structure of the reinforced fire shutter door of the utility model;

[0019] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0020] Figure 3 This is a schematic structural diagram of the first reinforcement member in the reinforced fire shutter door of the present invention;

[0021] Figure 4 This is a schematic structural diagram of the second reinforcement member in the reinforced fire shutter door of the present invention.

[0022] The components represented by the reference numerals are:

[0023] 1. First reinforcement member, 2. Door body, 3. Horizontal bar, 4. Vertical bar, 5. Horizontal frame, 6. Vertical frame, 7. Ridge, 8. Fastening bolt. Detailed implementation mode

[0024] See Figures 1 to 3 , the utility model provides a reinforced fire rolling shutter door, including a door frame, a door body 2 and a reinforcement structure.

[0025] The door frame is formed by enclosing two horizontal frames 5 and two vertical frames 6. Specifically, both the horizontal frame 5 and the vertical frame 6 are made of aluminum alloy profiles, and multiple reinforcing ribs are arranged in their cavities, so as to improve the structural strength of the door frame and increase the anti-deformation ability.

[0026] The door body 2 is movably connected to the door frame, and a winding mechanism connected to the door body 2 is fixed above the door frame. The winding mechanism can drive the door body 2 to fold or unfold in the door frame. In addition, it should be noted that the winding mechanism is powered by an external power supply or a storage battery, and of course, both can also be used at the same time. Specifically, the winding mechanism is usually powered by an external power supply. When the external power supply is not powered, the storage battery is connected, and it continues to power the winding mechanism to prevent theft.

[0027] The reinforcement structure is arranged on the inner side of the door frame. The reinforcement structure includes a first reinforcement member 1 and a second reinforcement member. The first reinforcement member 1 is a T-shaped member. The first reinforcement member 1 includes a longitudinal section and a transverse section. The transverse section and the longitudinal section of the first reinforcement member 1 are of an integral structure, so as to reduce the forming difficulty and improve the stability. The first reinforcement member 1 is arranged at the connection of the horizontal frame 5 and the vertical frame 6, and the longitudinal section of the first reinforcement member 1 is fixedly connected to the vertical frame 6, and the transverse section is fixedly connected to the horizontal frame 5. The first reinforcement member 1 can improve the connection stability of the horizontal frame 5 and the vertical frame 6.

[0028] The second reinforcement member is in a "mouth" - shaped structure. The second reinforcement member includes a horizontal bar 3 and a vertical bar 4 connected to each other. Specifically, the horizontal bar 3 and the vertical bar 4 can be fixedly connected by welding. The horizontal bar 3 is fixedly connected to the horizontal frame 5, and the vertical bar 4 is fixedly connected to the vertical frame 6. And the second reinforcement member covers the first reinforcement member 1. The second reinforcement member is beneficial to increasing the connection stability of the horizontal frame 5 and the vertical frame 6, and at the same time, it can also provide support for the horizontal frame 5 and the vertical frame 6 to improve the anti-deformation ability and structural strength of the door frame. In addition, the fastening bolt 8 passes through the end of the vertical frame 6 and is threadedly connected to the horizontal frame 5 to make the horizontal frame 5 and the vertical frame 6 firmly connected.

[0029] Optionally, in order to enable the horizontal bars 3 and vertical bars 4 to provide sufficient supporting force for the door frame and prevent it from deformation, the width of the horizontal bars 3 and vertical bars 4 can be slightly smaller than the width of the horizontal frame 5 and the longitudinal frame 6. For example, the width of the horizontal bar 3 is 8-10 mm smaller than the width of the horizontal frame 5, and the width of the vertical bar 4 is 8-10 mm smaller than the width of the longitudinal frame 6.

[0030] Optionally, ridges 7 are provided at the inner edges of the transverse and longitudinal frames 5 and 6, with grooves formed between adjacent ridges 7. The second reinforcement member is positioned within the grooves. The grooves enable coupling between the second reinforcement member and the door frame, thereby limiting the second reinforcement member, facilitating fixed connection between the second reinforcement member and the door frame, and also improving the aesthetics. Specifically, the width of the second reinforcement member's horizontal and vertical ridges 3 and 4 is approximately equal to the spacing between the ridges 7.

[0031] In one embodiment, the height of the ridge 7 is greater than or equal to the thickness of the horizontal bar 3 and the vertical bar 4, so that the second reinforcement member can be completely embedded in the groove, thereby facilitating the connection between the first reinforcement member 1 and the door frame.

[0032] Optionally, a T-shaped slot is provided at the connection between the horizontal frame 5 and the longitudinal frame 6, and the T-shaped slot is located between adjacent ridges 7. The first reinforcement 1 is embedded in the T-shaped slot. The T-shaped slot can limit the first reinforcement 1, thereby facilitating the fixing of the first reinforcement 1 at the connection between the horizontal frame 5 and the longitudinal frame 6.

[0033] It can be understood that the lengths of the transverse and longitudinal sections of the first reinforcement 1 should not be too long, as long as they can connect the transverse frame 5 and the longitudinal frame 6 of the door frame. Optionally, the lengths of the transverse and longitudinal sections of the first reinforcement 1 are both set between 4-8 cm. For example, the length of the transverse section is 7 cm and the length of the longitudinal section is 5 cm.

[0034] Optionally, the first and second reinforcing members 1 and 6 are fixedly connected to the transverse frame 5 and the longitudinal frame 6 by screws, so as to facilitate the connection of the first and second reinforcing members to the transverse frame 5 and the longitudinal frame 6. Specifically, the first and second reinforcing members are each provided with a plurality of through holes, and corresponding through holes are also provided on the inner sides of the transverse frame 5 and the longitudinal frame 6.

[0035] The above are only preferred implementation methods of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A reinforced fire shutter door, characterized in that: The rolling door comprises: A door frame, the door frame being formed by enclosing two transverse frames (5) and two longitudinal frames (6); A door body (2), wherein the door body (2) is movably connected to the door frame; A reinforcement structure, arranged on the inner side of the door frame, the reinforcement structure comprising a first reinforcement member (1) and a second reinforcement member, wherein the first reinforcement member (1) is a T-shaped member, which is arranged at the connection between the transverse frame (5) and the longitudinal frame (6), and the longitudinal section of the first reinforcement member (1) is fixedly connected to the longitudinal frame (6), and the transverse section is fixedly connected to the transverse frame (5), and the second reinforcement member is in a "mouth"-shaped structure, the second reinforcement member comprises a transverse bar (3) and a vertical bar (4) connected to each other, the transverse bar (3) is fixedly connected to the transverse frame (5), the vertical bar (4) is fixedly connected to the longitudinal frame (6), and the second reinforcement member covers the first reinforcement member (1); A fastening bolt (8), wherein the fastening bolt (8) passes through the longitudinal frame (6) and is threadedly connected to the end of the transverse frame (5).

2. The reinforced fire shutter door according to claim 1, characterized in that: The inner edges of the transverse frame (5) and the longitudinal frame (6) are provided with convex strips (7), and grooves are formed between adjacent convex strips (7), and the second reinforcement member is located in the grooves.

3. The reinforced fire shutter door according to claim 2, characterized in that: The height of the convex strip (7) is greater than or equal to the thickness of the horizontal strip (3) and the vertical strip (4).

4. The reinforced fire shutter door according to claim 2, characterized in that: A T-shaped slot is provided at the connection between the transverse frame (5) and the longitudinal frame (6), and the T-shaped slot is located between adjacent convex strips (7), and the first reinforcement member (1) is embedded in the T-shaped slot.

5. The reinforced fire shutter door according to claim 1, characterized in that: The width of the horizontal strip (3) is 8-10 mm smaller than the width of the horizontal frame (5), and the width of the vertical strip (4) is 8-10 mm smaller than the width of the vertical frame (6).

6. The reinforced fire shutter door according to claim 1, characterized in that: The lengths of the transverse section and the longitudinal section of the first reinforcement member (1) are both set between 4 and 8 cm.

7. The reinforced fire shutter door according to claim 1, characterized in that: The first reinforcement member (1) and the second reinforcement member are fixedly connected to the transverse frame (5) and the longitudinal frame (6) by means of screws.

8. The reinforced fire shutter door according to claim 1, characterized in that: The transverse section and the longitudinal section of the first reinforcement member (1) are an integrated structure.

9. The reinforced fire shutter door according to claim 1, characterized in that: The transverse frame (5) and the longitudinal frame (6) are both made of aluminum alloy profiles, and a plurality of reinforcing ribs are arranged in the cavity thereof.

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