Steel fireproof door with reinforced structure

Abstract

The utility model belongs to the technical field of fire safety facilities, in particular to a steel fireproof door with a reinforced structure, which comprises a door frame and an outward opening door, an inward opening door is mounted on one side of the door frame through an outer hinge, and the outward opening door is further mounted on one side of the inward opening door through an inner hinge. According to the device, the inward opening door and the outward opening door are arranged in different rotating directions, so that the door only needs to be pushed when being opened from any side, the opening state of the door does not influence an escape route, and escape can be smoothly completed even in a crowded condition; according to the safety door, stable and reliable conditions are provided for fire fighting and escape safety, the door can still be opened even under the condition of congestion, and meanwhile, the inner handle and the outer handle which are vertically arranged cannot affect emergency escape personnel and cannot be hooked to clothes to affect escape work.

Description

Technical Field

[0001] This utility model belongs to the field of fire safety facilities technology, specifically relating to a steel fire door with a reinforced structure. Background Technology

[0002] Fire safety facilities refer to fixed facilities such as automatic fire alarm systems, indoor fire hydrants, and outdoor fire hydrants in buildings. Automatic fire protection facilities are divided into electrical automatic facilities and water automatic facilities, and also include various fire doors and fire doors.

[0003] According to announcement number CN214886632U, a watertight steel-glass fire door is disclosed. This technology discloses that "a reinforced inner frame connected by screws is sleeved on the outer end of the fire door, wherein one end of the reinforced inner frame is offset and welded to an extension frame, and the outer end of the extension frame is fitted with a watertight sealing element with reinforced sealing and glued connection. Through this design, the steel-glass fire door can achieve watertightness, thus preventing water leakage from the sides of the steel-glass fire door during closing, which helps ensure the fire isolation function of the steel-glass fire door; this invention has a reinforced sealing structure, with both top and bottom embedded seals, which enhances the sealing performance of the watertight sealing element and reduces the number of seal tests."

[0004] Although the design features a reinforced sealing structure with embedded seals at both the top and bottom, which enhances the sealing performance of watertight seals and reduces the number of seal tests, the device is a one-way opening device. However, fire emergencies are uncontrollable. If an emergency occurs on one side of the fire door, an emergency escape is required. During the escape, the device needs to be pulled on one side to open, which may delay the escape. In cases with many people trying to escape, it may also cause crowding and make it difficult to open the door.

[0005] To address the aforementioned problems, this application proposes a steel fire door with a reinforced structure. Utility Model Content

[0006] To address the problems mentioned in the background section, this utility model provides a steel fire door with a reinforced structure. By using different rotation directions for the inward-opening and outward-opening doors, only a pushing action is required to open the door from either side, ensuring that the open state does not obstruct escape routes. Even in crowded situations, escape can still be completed smoothly, providing stable and reliable conditions for fire prevention and escape safety. Furthermore, the vertically positioned inward and outward handles will not affect people attempting to escape in an emergency, and will not snag clothing, thus preventing hindrance to the escape process.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a steel fire door with a reinforced structure, including a door frame and an outward-opening door, wherein an inward-opening door is installed on one side of the door frame via an external hinge, and the outward-opening door is also installed on one side of the inward-opening door via an internal hinge.

[0008] As a preferred embodiment of the steel fire door with a reinforced structure according to this utility model, the door frame and the inward-opening door are frame structures, the door frame and the inward-opening door are rotatably connected, and the surface of the inward-opening door is also equipped with an inner sealing plate and an outer handle.

[0009] As a preferred embodiment of the steel fire door with a reinforced structure according to this utility model, the surface of the inward-opening door is also equipped with an inner handle, and the inner handle is longitudinally installed on the surface of the inward-opening door. One side of the inward-opening door is also rotatably connected to the outward-opening door. The inner surfaces of the inward-opening door and the door frame are also provided with rectangular grooves.

[0010] As a preferred embodiment of the steel fire door with a reinforced structure according to this utility model, the inner sealing plate and the outer sealing plate respectively form an integrated structure with the inward opening door and the outward opening door, and the length and width of the inner sealing plate and the outer sealing plate are greater than the length and width of the inward opening door and the outward opening door.

[0011] As a preferred embodiment of the steel fire door with a reinforced structure according to this utility model, the surface of the outward-opening door is also equipped with an external handle and an external sealing plate.

[0012] As a preferred embodiment of the steel fire door with a reinforced structure according to this utility model, the outer handle is longitudinally installed on the surface of the outward-opening door.

[0013] Compared with the prior art, the beneficial effects of this utility model are: by setting different rotation directions between the inward-opening door and the outward-opening door, only a pushing action is required when the door is opened from either side, so that the open state of the door will not affect the escape route. Even in crowded situations, the escape can still be completed smoothly, providing stable and reliable conditions for fire protection and escape safety. Even in the event of congestion, the door can still be opened. At the same time, the vertically set inward and outward handles will not affect people in emergency escape, and will not get caught on clothing and affect the escape work. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the inward and outward opening states of the door in this utility model;

[0018] Figure 4 This is a schematic diagram of the exploded structure of this utility model;

[0019] In the picture:

[0020] 1. Door frame; 2. Outer hinge; 3. Inward opening door; 4. Inner closing panel; 5. Inner handle; 6. Inner hinge; 7. Outward opening door; 8. Outer handle; 9. Outer closing panel. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] like Figure 1 As shown:

[0024] A steel fire door with a reinforced structure includes a door frame 1.

[0025] In this implementation plan: The existing announcement number: CN214886632U discloses a watertight steel glass fire door. The technical means of this will not be described in detail here. For details on the improvement of this prior art, please refer to the following disclosure. In order to solve the technical problems existing in this prior art, such as the "" disclosed in the background art above, this problem is obviously a real and difficult problem to solve. In view of this, in order to solve the above problem, an inward opening door 3 and an outward opening door 7 are added on the basis.

[0026] Furthermore:

[0027] like Figure 1 - Figure 4 As shown:

[0028] Based on the above: an inward-opening door 3 is installed on one side of the door frame 1 via an external hinge 2, and an outward-opening door 7 is also installed on one side of the inward-opening door 3 via an internal hinge 6.

[0029] In this implementation plan, the inward-opening door 3 and the outward-opening door 7 located inside the door frame 1 can be opened in both directions. When an escapee opens the door from either side, it can be opened simply by pushing, avoiding the extra time consumption caused by pulling the door open and reducing the impact on escape.

[0030] Furthermore:

[0031] In an optional embodiment, the door frame 1 and the inward-opening door 3 are frame structures, the door frame 1 and the inward-opening door 3 are rotatably connected, and the surface of the inward-opening door 3 is also equipped with an inner sealing plate 4 and an outer handle 8.

[0032] In this embodiment: the door frame 1 of the frame structure can provide stable support for the inward opening door 3, so that the outward hinge 2 can have a stable installation space, while the inward opening door 3 can provide installation space for the outward opening door 7, so that the outward opening door 7 can perform normal opening and closing operations.

[0033] Furthermore:

[0034] In an optional embodiment, an inner handle 5 is also installed on the surface of the inward-opening door 3, and the inner handle 5 is longitudinally installed on the surface of the inward-opening door 3. One side of the inward-opening door 3 is also rotatably connected to the outward-opening door 7. Rectangular grooves are also provided on the inner surfaces of the inward-opening door 3 and the door frame 1.

[0035] In this embodiment: the inner handle 5 installed longitudinally on the surface of the inward-opening door 3 makes the opening operation smoother. At the same time, the inward-opening door 3 can also ensure that people do not get their clothes caught when escaping, which will affect their escape. In addition, the grooves opened on the surface of the inward-opening door 3 and the door frame 1 can make the connection between the inward-opening door 3 and the outward-opening door 7 more stable.

[0036] Furthermore:

[0037] In an optional embodiment, the inner sealing plate 4 and the outer sealing plate 9 form an integrated structure with the inner opening door 3 and the outer opening door 7, respectively, and the length and width of the inner sealing plate 4 and the outer sealing plate 9 are greater than the length and width of the inner opening door 3 and the outer opening door 7.

[0038] In this embodiment, the inner sealing plate 4 and the outer sealing plate 9 can keep the gaps closed when the inner door 3 and the outer door 7 are kept closed, thereby ensuring the sealing of the device and providing stable protection.

[0039] Furthermore:

[0040] In an optional embodiment, the surface of the outward-opening door 7 is also fitted with an external handle 8 and an external closing plate 9.

[0041] In this embodiment, the outer handle 8 and the outer sealing plate 9 installed on the surface of the outward-opening door 7 can keep the outer sealing plate 9 and the inward-opening door 3 in a closed state, preventing smoke and fire from overflowing to the other side of the door. The outer handle 8 can form a stable locking structure between it and the inward-opening door 3, so that it can be in a stable closed state.

[0042] Furthermore:

[0043] In an alternative embodiment, the outer handle 8 is mounted longitudinally on the surface of the outward-opening door 7.

[0044] In this embodiment, the vertically installed outer handle 8 ensures that the inner opening door 3 will not be affected when it is opened, thus preventing the inner opening door 3 from being jammed by the outer handle 8 and allowing the inner opening door 3 to be opened smoothly.

[0045] The working principle and usage process of this utility model are as follows: When the fire protection equipment needs to be used, when personnel pass through one side of the door, they can directly push the inward-opening door 3 open by using the inner handle 5 on one side of the inward-opening door 3. At this time, the inward-opening door 3 and the door frame 1 rotate, and personnel can directly enter the other side of the door. At this time, the outward-opening door 7 installed on the surface of the inward-opening door 3 remains relatively stationary and closed with the inward-opening door 3. In this process, there is no need to pull the door open, making the escape and passage steps simpler and faster. When it is necessary to pass through the other side, the outward-opening door 7 can be opened by using the outer handle 8. At this time, the outward-opening door 7 will rotate with the inward-opening door 3, and the inward-opening door 3 and the door frame 1 remain closed. Personnel can then pass through the opened outward-opening door 7 smoothly. The door frame 1, the inward-opening door 3, and the inward-opening door 3 and the outward-opening door 7, which rotate in the opposite direction, can ensure that when passing through in the opposite direction, personnel can move directly in the direction the door is open, ensuring that escape personnel can pass through smoothly, which has high convenience.

[0046] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A steel fire door with a reinforced structure, comprising a door frame (1) and an out-opening door (7), characterized in that: An inward-opening door (3) is installed on one side of the door frame (1) via an external hinge (2), and an outward-opening door (7) is also installed on one side of the inward-opening door (3) via an internal hinge (6).

2. The steel fire door with reinforcement structure according to claim 1, characterized in that: The door frame (1) and the inward-opening door (3) are frame structures. The door frame (1) and the inward-opening door (3) are rotatably connected. The surface of the inward-opening door (3) is also equipped with an inner sealing plate (4) and an outer handle (8).

3. The steel fire door with reinforcement structure according to claim 2, characterized in that: An inner handle (5) is also installed on the surface of the inward-opening door (3), and the inner handle (5) is longitudinally installed on the surface of the inward-opening door (3). One side of the inward-opening door (3) is also rotatably connected to the outward-opening door (7). A rectangular groove is also provided on the inner surface of the inward-opening door (3) and the door frame (1).

4. The steel fire door with reinforcement structure according to claim 2, characterized in that: The inner sealing plate (4) and the outer sealing plate (9) form an integrated structure with the inner opening door (3) and the outer opening door (7), respectively, and the length and width of the inner sealing plate (4) and the outer sealing plate (9) are greater than the length and width of the inner opening door (3) and the outer opening door (7).

5. The steel fire door with reinforcement structure according to claim 4, characterized in that: The surface of the outward-opening door (7) is also equipped with an external handle (8) and an external closing plate (9).

6. The steel fire door with reinforcement structure according to claim 5, characterized in that: The outer handle (8) is mounted longitudinally on the surface of the outward-opening door (7).

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