Fire exit door

Abstract

The utility model relates to the field of fire exit doors, in particular to a fire exit door which comprises a fire exit door body and a turnover plate, the fire exit door body and the turnover plate are both rotationally matched with a wall, the turnover plate is movably mounted on the fire exit door body through a linkage part, and when the fire exit door body is rotationally opened, the turnover plate is driven by the linkage part to rotate. And the linkage piece drives the overturning plate piece to rotate to form a receding space. The fire exit door has the effect of reducing the building space occupied by the fire exit door.

Description

Technical Field

[0001] The present application relates to the field of fire doors, and in particular to a fire door. Background Art

[0002] Fire doors are safety facilities used to enclose fire-fighting facilities, such as fire evacuation passages and fire hydrants. There are corresponding standards for the opening angle of fire doors, which are usually required to be greater than 160° to ensure that there is enough space for equipment to pass through or for personnel to evacuate after the fire door is opened.

[0003] In the existing related technologies, in order to ensure that the opening angle of the fire door meets various standard requirements, two common structures are generally used to allow the fire door to have enough clearance space to rotate when it is opened. One is to use a parallel connecting rod mechanism to allow the fire door to have a large displacement relative to the wall. The other is to set a rotating connecting rod with a longer length so that the fire door is connected to the wall through one end and fixed to the rotating connecting rod of the fire door at the other end, so that the fire door can rotate at a large angle. For example, the specification of the utility model with announcement number CN 215255817 U and the name of a fire door installation structure is attached. Figure 1 shown.

[0004] With regard to the above-mentioned related technologies, the method of realizing a large opening angle of the fire door still forms an empty space when the fire door is closed, which occupies a large space. For places with space utilization requirements or aesthetic requirements, such as shopping centers and sales centers and other consumer places, fire doors that occupy a large space cannot well meet the use requirements and fire safety requirements of the building at the same time. Summary of the invention

[0005] In order to reduce the building space occupied by fire doors, the present application provides a fire door.

[0006] The fire door provided in this application adopts the following technical solution:

[0007] A fire door comprises a fire door body and a flip plate, wherein the fire door body and the flip plate are both rotatably matched with a wall, and the flip plate is movably installed on the fire door body through a linkage member. When the fire door body is rotated to open, the linkage member drives the flip plate to rotate to form a clearance space.

[0008] By adopting the above technical solution, when the fire door body rotates, the flip plate rotates accordingly to avoid the fire door body and form a clearance space, so that the fire door body can pass through the clearance space and exceed the maximum angle that the fire door body can rotate when the flip plate is not rotated, thereby reducing the need to set parallel connecting rods or longer rotating connecting rods to always form a clearance space, thereby reducing the building space occupied by the fire door.

[0009] Optionally, the linkage member is flexible, and two ends of the linkage member are respectively mounted on the fire door body and the flip plate.

[0010] By adopting the above technical solution, the flip plate is rotated along with the fire door body through the flexible linkage member, and the structure is simple and easy to maintain and replace.

[0011] Optionally, the fire door further includes a friction reducing member, which includes a rotary wheel mounting seat and a friction reducing rotary wheel. The rotary wheel mounting seat is mounted on the fire door body or a wall, the friction reducing rotary wheel rotatably cooperates with the rotary wheel mounting seat, and the linkage member is arranged around the friction reducing rotary wheel.

[0012] By adopting the above technical solution, the friction-reducing wheel rotates along with the movement of the linkage part, so that the linkage part is not easily worn.

[0013] Optionally, the linkage member is a metal rope.

[0014] By adopting the above technical solution, the metal rope has good durability and is not easy to age due to the fire door being closed for a long time and not being activated.

[0015] Optionally, a torsion elastic member is provided between the flip plate and the wall, and two ends of the torsion elastic member are respectively installed on the flip plate and the wall.

[0016] By adopting the above technical solution, it is ensured that when the fire door body is closed, the flip plate will make way for the space to be closed, thereby ensuring the aesthetics of the wall.

[0017] Optionally, the torsion elastic member is a torsion spring.

[0018] By adopting the above technical solution, the torsion elastic member has a simple structure and is easy to maintain.

[0019] Optionally, the flip panel is rotatably engaged with the wall through a hinge.

[0020] By adopting the above technical solution, the hinge structure is simple and occupies little space, which is conducive to reducing the space occupied by the fire door.

[0021] Optionally, the fire door body is installed with a door body finishing layer, and the flip panel is installed with a panel finishing layer.

[0022] By adopting the above technical solution, the door body finishing layer and the panel finishing layer are used to decorate the fire door body and the flip panel, which is beneficial to ensure the aesthetics of the fire door.

[0023] Optionally, the flip plate includes a plurality of assembly plates, and the plurality of assembly plates are detachably mounted.

[0024] By adopting the above technical solution, on the one hand, it is convenient to divide the flip panel into several assembly panels for assembly or transportation, thereby reducing the difficulty of assembly and transportation of the flip panel. On the other hand, it is convenient to ensure that several assembly panels rotate at the same time, reducing the situation where individual assembly panels fail to rotate and cause the fire door body to get stuck.

[0025] Optionally, the assembly plate is installed with a connecting block, and a plurality of the connecting blocks are connected by bolts.

[0026] By adopting the above technical solution, the connection between the several assembly plates is simple and reliable.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. When the fire door body rotates, the flip plate rotates accordingly to avoid the fire door body to form a clearance space, so that the fire door body can pass through the clearance space and exceed the maximum angle that the fire door body can rotate when the flip plate is not rotated, thereby reducing the need to set parallel connecting rods or longer rotating connecting rods to always form a clearance space, thereby reducing the building space occupied by the fire door;

[0029] 2. The flip plate rotates with the fire door body through a flexible linkage, which has a simple structure and is easy to maintain and replace;

[0030] 3. It is convenient to divide the flip panel into several assembly panels for assembly or transportation, thereby reducing the difficulty of assembling and transporting the flip panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is the first installation diagram of the fire door and the wall in Example 1 of the present application.

[0032] Figure 2 It is an exploded schematic diagram of the door body finishing layer and the panel finishing layer of Example 1 of the present application.

[0033] Figure 3 This is the second installation diagram of the fire door and the wall in Example 1 of the present application.

[0034] Figure 4 This is a schematic diagram of the partial installation of the security door and the wall in Example 1 of the present application.

[0035] Figure 5 It is a cross-sectional schematic diagram of the fire door of Example 1 of the present application.

[0036] Figure 6 yes Figure 5 An enlarged schematic diagram of part A.

[0037] Figure 7 It is an overall schematic diagram of the flip plate of Example 2 of the present application.

[0038] Figure 8 yes Figure 7 An enlarged schematic diagram of part B.

[0039] Explanation of the reference numerals: 1. fire door body; 11. door body finishing layer; 12. door body rope ring; 2. flip plate; 21. plate finishing layer; 22. hinge; 23. torsional elastic member; 24. plate rope ring; 3. linkage member; 4. anti-friction wheel; 5. assembly plate; 51. connecting block. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-8 This application is described in further detail.

[0041] Embodiment 1:

[0042] Embodiment 1 of the present application discloses a fire door. Figure 1 and Figure 2 The fire door is installed on the wall, and a wall decoration layer is installed on the surface of the wall to ensure the aesthetics of the wall. The fire door includes a fire door body 1 and a flip plate 2. The fire door body 1 is fixedly installed with three door body finishing layers 11 distributed in the vertical direction, and the flip plate 2 is fixedly installed with three plate finishing layers 21 distributed in the vertical direction. Specifically in Example 1 of the present application, the wall decoration layer, the door body finishing layer 11 and the plate finishing layer 21 are all ceramic tiles, and the surfaces of the wall decoration layer, the door body finishing layer 11 and the plate finishing layer 21 are arranged flush.

[0043] Reference Figure 3 and Figure 4 , the fire door body 1 rotates and fits with the wall, and the axis around which the fire door body 1 rotates is arranged in the vertical direction. The flip panel 2 is arranged close to the axis around which the fire door body 1 rotates, and the flip panel 2 rotates and fits with the wall through six hinges 22 distributed in the vertical direction, and the axis around which the flip panel 2 rotates is also arranged in the vertical direction. In addition, it should be pointed out that a gap for the fire door body 1 and / or the flip panel 2 to rotate needs to be provided between the wall decoration layer, the door body finishing layer 11, the panel finishing layer 21, the fire door body 1 and the flip panel 2 according to the actual thickness dimensions of each component. Preferably, the width dimension of the gap for the fire door body 1 and / or the flip panel 2 and other components to rotate is 1-2 mm.

[0044] Reference Figure 3 and Figure 4Six torsion elastic members 23 are arranged between the flip plate 2 and the wall, and the six torsion elastic members 23 are arranged one by one corresponding to each hinge 22. The torsion elastic member 23 is a torsion spring, which is sleeved on the rotating shaft of the hinge 22, and the two ends of the torsion elastic member 23 are respectively installed on the flip plate 2 and the wall through two wing plates tightly fitting the hinge 22, so that the flip plate 2 can be kept parallel to the wall surface by the elastic force of the torsion elastic member 23 when the fire door body 1 is closed.

[0045] Reference Figure 5 and Figure 6 The flip plate 2 is movably mounted on the fire door body 1 through three linkage members 3 distributed in the vertical direction, and the linkage members 3 can be of flexible metal rope, flexible non-metal rope, rotatable and foldable connecting rod, bendable chain, etc. It should be noted that the linkage members 3 should avoid using materials with large expansion modulus to ensure that the linkage members 3 are not prone to large expansion and contraction, so that the flip plate 2 can respond and rotate in time when the fire door body 1 rotates.

[0046] The two ends of the linkage member 3 are respectively installed on the fire door body 1 and the flip plate 2, and the linkage member 3 and the fire door body 1 and the flip plate 2 can be installed together by one or more installation methods known to those skilled in the art, such as screws, adhesives, and rope rings. The fire door body 1 and the flip plate 2 are connected by the linkage member 3, so that when the fire door body 1 is rotated to open, the flip plate 2 is driven by the linkage member 3 to rotate to form a clearance space for the fire door body 1 to rotate at a large angle. Specifically in Example 1 of the present application, the type of the linkage member 3 is a steel wire rope, and one end of the linkage member 3 is fixedly installed on the flip plate 2 through a plate rope ring 24 fixedly installed on the flip plate 2, and the other end of the linkage member 3 is fixedly installed on the fire door body 1 through a door body rope ring 12 fixedly installed on the fire door body 1.

[0047] Reference Figure 3 and Figure 4 The fire door also includes three friction-reducing parts, which are respectively arranged in one-to-one correspondence with each linkage part 3. The friction-reducing parts include a rotary wheel mounting seat and a friction-reducing rotary wheel 4, and the rotary wheel mounting seat is mounted on the fire door body 1 or the wall, and in the embodiment 1 of the present application, the rotary wheel mounting seat is fixedly mounted on the wall. The friction-reducing rotary wheel 4 is rotatably matched with the rotary wheel mounting seat, and the surface of the friction-reducing rotary wheel 4 is smoothly arranged, and the friction-reducing rotary wheel 4 is arranged in an hourglass shape. The linkage part 3 is arranged around the friction-reducing rotary wheel 4, so that the wear of the linkage part 3 during movement can be reduced by the friction-reducing rotary wheel 4.

[0048] The implementation principle of a fire door in Example 1 of the present application is as follows: when the fire door body 1 is rotated outward to open, one end of the linkage member 3 installed on the door body rope ring 12 moves in a direction away from the plate rope ring 24, so that the linkage member 3 pulls the flip plate 2 to overcome the elasticity of the torsional elastic member 23 and rotate inward, thereby causing the flip plate 2 to rotate inward to avoid the fire door body 1 and form a clearance space, thereby allowing the fire door body 1 to pass through the clearance space and exceed the maximum angle that the fire door body 1 can rotate when the flip plate 2 is not rotated, thereby reducing the need to set parallel connecting rods or longer rotating connecting rods to always form a clearance space, thereby reducing the building space occupied by the fire door.

[0049] Embodiment 2:

[0050] Embodiment 2 of the present application discloses a fire door, which includes all the technical features of Embodiment 1 and also includes the following technical features:

[0051] Reference Figure 7 and Figure 8 The flip panel 2 includes a plurality of assembly panels 5, which are detachably mounted. Specifically, three assembly panels 5 are provided, and the three assembly panels 5 are distributed along the length direction of the flip panel 2. A connecting block 51 is fixedly mounted on one side of the assembly panel 5 away from the panel decoration layer, and two adjacent connecting blocks 51 are connected by bolts passing through the connecting blocks 51 to ensure that the three assembly panels 5 rotate simultaneously.

[0052] The implementation principle of a fire door in Example 2 of the present application is consistent with that in Example 1 and will not be elaborated here.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fire door, characterized in that: The fire door comprises a fire door body (1) and a flip plate (2), wherein the fire door body (1) and the flip plate (2) are both rotatably matched with a wall, and the flip plate (2) is movably mounted on the fire door body (1) via a linkage member (3). When the fire door body (1) is rotated to open, the linkage member (3) drives the flip plate (2) to rotate to form a clearance space.

2. A fire door according to claim 1, characterized in that: The linkage member (3) is flexible, and two ends of the linkage member (3) are respectively mounted on the fire door body (1) and the flip plate (2).

3. A fire door according to claim 2, characterized in that: The fire door further comprises a friction reducing member, which comprises a rotary wheel mounting seat and a friction reducing rotary wheel (4). The rotary wheel mounting seat is mounted on the fire door body (1) or a wall, the friction reducing rotary wheel (4) is rotatably matched with the rotary wheel mounting seat, and the linkage member (3) is arranged around the friction reducing rotary wheel (4).

4. A fire door according to claim 2, characterized in that: The type of the linkage member (3) is a metal rope.

5. A fire door according to claim 1, characterized in that: A torsion elastic member (23) is provided between the flip plate (2) and the wall, and two ends of the torsion elastic member (23) are respectively mounted on the flip plate (2) and the wall.

6. A fire door according to claim 5, characterized in that: The type of the torsion elastic member (23) is a torsion spring.

7. A fire door according to claim 1, characterized in that: The flip plate (2) is rotationally coupled to the wall via a hinge (22).

8. A fire door according to claim 1, characterized in that: The fire door body (1) is provided with a door body finishing layer (11), and the flip panel (2) is provided with a panel finishing layer (21).

9. A fire door according to claim 1, characterized in that: The flip plate (2) comprises a plurality of assembly plate bodies (5), and the plurality of assembly plate bodies (5) are detachably mounted.

10. A fire door according to claim 9, characterized in that: The assembly plate body (5) is installed with a connection block (51), and a plurality of the connection blocks (51) are connected by bolts.

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