Invisible anti-falling chain of oversized fireproof door

Abstract

The utility model discloses a super-large fireproof door invisible anti-falling chain which comprises a plastic-wrapped soft steel wire, fixing caps are fixed to the two ends of the plastic-wrapped soft steel wire respectively, a conical counterweight device and a bolt are fixed to the outer walls of the fixing caps respectively, a fireproof door vertical frame is fixed to the outer wall of the conical counterweight device, and a built-in lining plate is fixed to the outer wall of the bolt through threads. A fireproof door leaf is fixed to the outer wall of the built-in lining plate, a fifth screw hole is formed in the inner wall of the bolt, and a third screw hole and a fourth screw hole are formed in the inner wall of the conical balance weight device. A hidden structure is formed by utilizing a gap between a special frame type of the oversized fireproof door and the door leaf, the door leaf and the door frame are stably connected through the anti-falling chain, damage caused by accidental derailing and falling of the oversized door leaf is effectively prevented, meanwhile, due to the fact that the anti-falling chain is an invisible anti-falling device, the decoration effect of a door leaf veneer and the whole door body cannot be affected, and the safety of the oversized fireproof door is guaranteed. And under the condition that the structure safety is guaranteed, the original design style is presented by 100%.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-fall chains, in particular to an invisible anti-fall chain for an extra-large fireproof door. Background Art

[0002] Fire doors are usually large in size and heavy in weight. Therefore, during the long-term opening and closing process of fire doors, it is easy for the door leaf and the door frame to loosen, which may cause the door leaf to fall. Or some door leaves are installed at a high height. Once they fall, the safety hazards caused are great and the losses are extremely serious. Therefore, it is necessary to install an anti-fall chain between the door leaf and the door panel to improve the safety of fire doors when in use.

[0003] At present, most of the existing anti-fall chains are "explicitly installed", with the wall as the fixing point and connected to the door leaf through an exposed chain. The anti-fall chains installed in this way are usually exposed outside the door, thus affecting the overall aesthetics of the interior of the building. Therefore, an invisible anti-fall chain is needed to ensure the safety of the fire door while improving the overall aesthetics of the door body. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an invisible anti-fall chain for an extra-large fire door.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The invisible anti-fall chain for extra-large fire doors includes a plastic-coated soft steel wire, with fixing caps fixed at both ends respectively, a conical counterweight and a bolt fixed to the outer wall of the fixing cap, the fire door frame fixed to the outer wall of the conical counterweight, a built-in lining fixed to the outer wall of the bolt through threads, and the fire door leaf fixed to the outer wall of the built-in lining.

[0007] As a further solution of the present invention: a fifth screw hole is opened on the inner wall of the bolt.

[0008] As a further solution of the present invention: a third screw hole and a fourth screw hole are opened on the inner wall of the conical counterweight.

[0009] As a further solution of the present invention: a second screw hole is opened on the outer wall of one side of the built-in lining plate, and the bolt is connected to the inner wall of the second screw hole through a thread.

[0010] As a further solution of the present invention: a first screw hole is opened on the outer wall of one side of the fire door frame.

[0011] As a further solution of the present invention: a mounting hole is provided on an outer wall of one side of the fireproof door leaf.

[0012] The beneficial effects of the utility model are:

[0013] 1. This utility model utilizes the unique frame of the extra-large fire door and the gap between the door leaf to form a concealed structure, and firmly connects the door leaf and the door frame through an anti-fall chain, effectively preventing the extra-large door leaf from accidentally derailing and falling over, causing injuries. At the same time, because it is an invisible anti-fall device, it will not affect the door leaf finish and the decorative effect of the entire door body. While ensuring the safety of the structure, the original design style is 100% presented.

[0014] 2. The built-in lining plate fixed to the outer wall of the bolt is fixed as a whole to the inner wall of the fire door leaf. There is a large contact surface between the built-in lining plate as a whole and the inner wall of the fire door leaf, which can improve the pulling and limiting effect of the bolt on the fire door leaf as a whole through the built-in lining plate, so that the plastic-coated soft steel wire can more stably pull and limit the fallen fire door leaf. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the top cross-sectional structure of the invisible anti-fall chain for super-large fire doors proposed in the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the fire door frame with invisible anti-fall chain for the super-large fire door proposed in the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of a fire door leaf with an invisible anti-fall chain for an extra-large fire door proposed in the present invention;

[0018] Figure 4 This is a side view of the structure of the fire door leaf with invisible anti-fall chain for the super-large fire door proposed in the utility model;

[0019] Figure 5 This is a schematic diagram of the built-in lining structure of the invisible anti-fall chain for the super-large fire door proposed in this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the conical counterweight of the invisible anti-fall chain for the super-large fire door proposed in this utility model;

[0021] Figure 7 This is a schematic diagram of the bolt structure of the invisible anti-fall chain for the super-large fire door proposed in this utility model.

[0022] In the figure: 1-fire door leaf, 2-fire door frame, 3-fixing cap, 4-conical counterweight, 5-plastic-coated soft steel wire, 6-first screw hole, 7-built-in lining plate, 8-bolt, 9-second screw hole, 10-third screw hole, 11-fourth screw hole, 12-fifth screw hole, 13-mounting hole. DETAILED DESCRIPTION

[0023] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0024] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this patent.

[0026] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0027] Example 1

[0028] Invisible anti-fall chain for super large fire doors, such as Figure 1-7 As shown, it includes a plastic-coated soft steel wire 5, with fixing caps 3 fixed at both ends of the plastic-coated soft steel wire 5, a conical counterweight 4 and a bolt 8 fixed to the outer wall of the fixing cap 3, a fire door frame 2 fixed to the outer wall of the conical counterweight 4, an internal lining plate 7 fixed to the outer wall of the bolt 8 by threads, and a fire door leaf 1 fixed to the outer wall of the internal lining plate 7;

[0029] The inner wall of the bolt 8 is provided with a fifth screw hole 12;

[0030] The inner wall of the conical counterweight 4 is provided with a third screw hole 10 and a fourth screw hole 11;

[0031] A second screw hole 9 is formed on the outer wall of one side of the built-in lining plate 7, and a bolt 8 is connected to the inner wall of the second screw hole 9 through a thread;

[0032] A first screw hole 6 is provided on one side outer wall of the fire door frame 2;

[0033] A mounting hole 13 is formed on one side outer wall of the fire door leaf 1 .

[0034] The utility model utilizes the unique frame of the oversized fire door and the gap between the door leaf to form a concealed structure, and firmly connects the door leaf and the door frame through an anti-fall chain, effectively preventing the oversized door leaf from accidentally derailing and falling over, causing injury. At the same time, because it is an invisible anti-fall device, it will not affect the door leaf finish and the decorative effect of the entire door body. While ensuring the safety of the structure, the original design style is 100% presented.

[0035] The plastic-coated soft steel wire 5 is fixedly connected between the fire door frame 2 and the fire door leaf 1 through the conical counterweight 4 and the bolt 8, so that one end of the plastic-coated soft steel wire 5 is fixed as a whole inside the fire door frame 2 through the conical counterweight 4 and the fixing cap 3, and then the other end of the plastic-coated soft steel wire 5 is passed through the fifth screw hole 12 on the outer wall of the bolt 8, and then the other end of the plastic-coated soft steel wire 5 is fixed to the bolt 8 through the fixing cap 3 at the other end of the plastic-coated soft steel wire 5, and then the bolt 8 can be fixed as a whole through the thread. On the fire door leaf 1 and the built-in lining plate 7 arranged inside the fire door leaf 1, one end of the plastic-coated soft steel wire 5 is fixed to the fire door leaf 1 by a bolt 8. At the same time, the plastic-coated soft steel wire 5 is hidden as a whole inside the fire door frame 2 and at the connection between the fire door leaf 1 and the fire door frame 2, so that the plastic-coated soft steel wire 5 as a whole will not be exposed to the outside of the fire door leaf 1 and affect the overall beauty and flatness of the interior of the building. At the same time, the fire door leaf 1 can be fixed by the bolt 8 to avoid the risk of the fire door leaf 1 falling off.

[0036] The built-in lining plate 7 fixed on the outer wall of the bolt 8 is fixed as a whole on the inner wall of the fire door leaf 1. There is a large contact surface between the built-in lining plate 7 as a whole and the inner wall of the fire door leaf 1, which can improve the pulling and limiting effect of the bolt 8 on the fire door leaf 1 as a whole through the built-in lining plate 7, so that the plastic-coated soft steel wire 5 can more stably pull and limit the fire door leaf 1 after it falls.

[0037] Working principle: The plastic-coated soft steel wire 5 is fixedly connected between the fire door frame 2 and the fire door leaf 1 through the conical counterweight 4 and the bolt 8, so that one end of the plastic-coated soft steel wire 5 is fixed as a whole to the inside of the fire door frame 2 through the conical counterweight 4 and the fixing cap 3, and then the other end of the plastic-coated soft steel wire 5 is passed through the fifth screw hole 12 on the outer wall of the bolt 8, and then the other end of the plastic-coated soft steel wire 5 is fixed to the bolt 8 through the fixing cap 3 at the other end of the plastic-coated soft steel wire 5. Then, the bolt 8 can be fixed as a whole to the fire door leaf 1 and the built-in lining plate 7 set inside the fire door leaf 1 through threads, and one end of the plastic-coated soft steel wire 5 is fixed to the fire door leaf 1 through the bolt 8. At the same time, the plastic-coated soft steel wire 5 is hidden as a whole inside the fire door frame 2 and at the connection between the fire door leaf 1 and the fire door frame 2, so that the plastic-coated soft steel wire 5 as a whole will not be exposed to the outside of the fire door leaf 1, affecting the overall beauty and flatness of the interior of the building, and at the same time, the fire door leaf 1 can be fixed by the bolt 8.

[0038] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An invisible anti-fall chain for an extra-large fire door, comprising a plastic-coated soft steel wire (5), characterized in that: The two ends of the plastic-coated soft steel wire (5) are respectively fixed with fixing caps (3), the outer walls of the fixing caps (3) are respectively fixed with conical counterweights (4) and bolts (8), the outer wall of the conical counterweight (4) is fixed with a fire door frame (2), the outer wall of the bolt (8) is fixed with a built-in lining plate (7) through a thread, and the outer wall of the built-in lining plate (7) is fixed with a fire door leaf (1).

2. The invisible anti-fall chain for super-large fire doors according to claim 1 is characterized in that: A fifth screw hole (12) is formed on the inner wall of the bolt (8).

3. The invisible anti-fall chain for super-large fire doors according to claim 1 is characterized in that: The inner wall of the conical counterweight (4) is provided with a third screw hole (10) and a fourth screw hole (11).

4. The invisible anti-fall chain for super-large fire doors according to claim 1 is characterized in that: A second screw hole (9) is formed on the outer wall of one side of the built-in lining plate (7), and a bolt (8) is connected to the inner wall of the second screw hole (9) through a thread.

5. The invisible anti-fall chain for super-large fire doors according to claim 1 is characterized in that: A first screw hole (6) is provided on one side outer wall of the fire door upright frame (2).

6. The invisible anti-fall chain for super-large fire doors according to claim 1 is characterized in that: A mounting hole (13) is provided on one side outer wall of the fireproof door leaf (1).

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