Fireproof door convenient to open emergently

Abstract

The utility model relates to the field of fireproof doors, in particular to a fireproof door convenient to open emergently, which comprises a door frame, the fireproof door is rotatably mounted in the door frame through hinges, and limiting holes are formed in the top side and the bottom side between the door frame and the fireproof door; the emergency opening mechanism is installed in the fireproof door in a penetrating mode and can open the fireproof door emergently; in the fire escape process, a user opens the protective door and upwards lifts the insertion rod to be separated from the insertion hole, in the separation process of the insertion rod and the insertion hole, the racks are pulled through the elasticity of the first spring and the second spring, the two racks are reset to drive the limiting seat to reset, and the fireproof door can be opened by separating the limiting seat from the limiting hole. The opening difficulty of the fireproof door can be reduced in the escape process, the opening time of the fireproof door is shortened, the fireproof door can be opened emergently when a fire occurs, and the escape efficiency of people is improved.

Description

Technical Field

[0001] The utility model relates to the field of fire doors, in particular to a fire door which is convenient for emergency opening. Background Art

[0002] Fire doors refer to doors that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. They are fireproof partitions with a certain degree of fire resistance, installed between fire compartments, evacuation stairwells, vertical shafts, etc. In addition to the functions of ordinary doors, fire doors can also prevent the spread of fire and smoke. They can prevent the spread of fire within a certain period of time and ensure the evacuation of personnel;

[0003] At present, most of the existing fire doors are in a closed state when in the supporting state and are locked by locks, but this also poses certain safety hazards. When a dangerous situation occurs, people still need to unlock the fire doors with great effort to complete escape and evacuation. If there is thick smoke, people need to cover their mouths and noses while unlocking the doors with great effort, which undoubtedly increases the safety hazards.

[0004] Therefore, a fire door that is convenient for emergency opening is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a fire door that is easy to open in an emergency in order to solve the above-mentioned problem, thereby improving the problem that in the case of thick smoke, people need to cover their mouths and noses while unlocking the door with great effort, which undoubtedly increases the safety hazard.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions: a fire door that is easy to open in an emergency, comprising: a door frame, a fire door is rotatably installed inside the door frame through a hinge, and limiting holes are provided on both the top and bottom sides between the door frame and the fire door; an emergency opening mechanism, the emergency opening mechanism is installed through the inside of the fire door and can open the fire door in an emergency; wherein the emergency opening mechanism comprises a first installation cavity opened on one side of the inside of the fire door, a second installation cavity is provided inside the fire door and located at the top and bottom of the first installation cavity, a rotating rod is rotatably installed inside the first installation cavity, one end of the rotating rod passes through the fire door and extends to the outside of the fire door, a gear is sleeved on the surface of the rotating rod, and an opening component is installed through the first installation cavity and the second installation cavity.

[0007] Preferably, the opening assembly includes two racks meshingly connected to both sides of the gear, and the first spring is fixedly installed on one end of the two racks located inside the first installation cavity, and the end of the rack away from the first spring passes through the fire door and extends to the inner cavity of the second installation cavity, and a limit seat is fixedly installed on one end of the rack located inside the second installation cavity, and one end of the limit seat passes through the fire door and extends to the outside of the fire door, and the limit seat is plugged into the limit hole.

[0008] Preferably, a second spring is fixedly mounted on one side of the limiting seat, and one end of the second spring is fixedly connected to the inner wall of the second mounting cavity.

[0009] Preferably, a rotating wheel is fixedly mounted on one end of the rotating rod located outside the fire door, a shell is mounted on the surface of the fire door and on the surface of the rotating wheel, and a protective door is hinged on the front surface of the shell.

[0010] Preferably, a fixing seat is sleeved on the surface of the rotating rod located outside the fire door, a plurality of insertion holes are opened on the surface of the fixing seat, a horizontal plate is fixedly installed on the surface of the fire door and located inside the shell, an insertion rod is installed through the surface of the horizontal plate, a fixing plate is fixedly installed on the surface of the insertion rod, and the bottom end of the insertion rod is plugged into the insertion hole.

[0011] Preferably, a third spring is fixedly installed between the transverse plate and the fixed plate, and a handle is fixedly installed on the top end of the insertion rod.

[0012] Preferably, the door frame and the fire door are hingedly connected via a two-way opening and closing hinge, and the two-way opening and closing hinge is used for the two-way opening and closing of the fire door.

[0013] The beneficial effects of the utility model are:

[0014] 1. During the fire escape process, the user opens the protective door and pulls the plug rod upward to separate it from the socket. During the separation of the plug rod from the socket, the rack is pulled by the elasticity of the first spring and the second spring, so that the two racks are reset to drive the limit seat to reset, and the limit seat is separated from the limit hole to open the fire door, which can reduce the difficulty of opening the fire door during the escape process and reduce the opening time of the fire door, so that it can be opened urgently when a fire occurs, thereby improving people's escape efficiency;

[0015] 2. The setting of the rotating wheel can facilitate the user to rotate the gear so as to reclose the fire door after the fire door is opened in an emergency, seal the escape passage, prevent the passage from being blocked by debris, and ensure that the escape passage can be used smoothly when needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the fire door of the utility model;

[0018] Figure 3 This is a schematic diagram of the wheel structure of the utility model;

[0019] Figure 4 for Figure 3 Enlarged view of area A in the middle.

[0020] In the figure: 10, door frame; 11, fire door; 20, emergency opening mechanism; 21, first installation cavity; 22, second installation cavity; 23, gear; 24, opening assembly; 241, rack; 242, first spring; 243, limit seat; 244, second spring; 245, rotating wheel; 246, shell; 247, protective door; 248, fixed seat; 249, socket; 2401, cross plate; 2402, plug rod; 2403, fixed plate; 2404, third spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] When implementing: Figure 1-4 As shown, a fire door convenient for emergency opening comprises:

[0023] A door frame 10, a fire door 11 is rotatably mounted inside the door frame 10 through hinges, and limiting holes are provided on both the top and bottom sides between the door frame 10 and the fire door 11;

[0024] An emergency opening mechanism 20, which is installed throughout the interior of the fire door 11 and can open the fire door 11 in an emergency;

[0025] The door frame 10 and the fire door 11 are hingedly connected via a two-way opening and closing hinge, and the two-way opening and closing hinge is used for the fire door 11 to open and close in two directions.

[0026] like Figure 2 , Figure 3 and Figure 4As shown, the emergency opening mechanism 20 includes a first installation cavity 21 opened on one side of the interior of the fire door 11, and a second installation cavity 22 is opened inside the fire door 11 and located at the top and bottom of the first installation cavity 21. A rotating rod is rotatably installed inside the first installation cavity 21, and one end of the rotating rod passes through the fire door 11 and extends to the outside of the fire door 11. A gear 23 is sleeved on the surface of the rotating rod. An opening component 24 is installed between the first installation cavity 21 and the second installation cavity 22; the opening component 24 includes two racks 241 meshingly connected to both sides of the gear 23, and the two racks 24 A first spring 242 is fixedly installed at one end located inside the first installation cavity 21, an end of the rack 241 away from the first spring 242 penetrates the fire door 11 and extends to the inner cavity of the second installation cavity 22, a limit seat 243 is fixedly installed at one end of the rack 241 located inside the second installation cavity 22, one end of the limit seat 243 penetrates the fire door 11 and extends to the outside of the fire door 11, and the limit seat 243 is plugged into the limit hole; a second spring 244 is fixedly installed on one side of the limit seat 243, and one end of the second spring 244 is fixedly connected to the inner wall of the second installation cavity 22;

[0027] A fixing seat 248 is sleeved on the surface of the rotating rod located outside the fire door 11, and a plurality of insertion holes 249 are opened on the surface of the fixing seat 248. A horizontal plate 2401 is fixedly installed on the surface of the fire door 11 and located inside the shell 246. A plug rod 2402 is installed through the surface of the horizontal plate 2401. A fixing plate 2403 is fixedly installed on the surface of the plug rod 2402. The bottom end of the plug rod 2402 is plugged into the insertion hole 249.

[0028] In this embodiment, the user opens the protective door 247 and pulls the insertion rod 2402 upward to separate it from the insertion hole 249. During the separation of the insertion rod 2402 from the insertion hole 249, the rack 241 is pulled by the elasticity of the first spring 242 and the second spring 244, so that the two racks 241 are reset to drive the limit seat 243 to reset, and the limit seat 243 is separated from the limit hole to open the fire door 11.

[0029] A rotating wheel 245 is fixedly mounted on one end of the rotating rod located outside the fire door 11, a housing 246 is mounted on the surface of the fire door 11 and located on the surface of the rotating wheel 245, and a protective door 247 is hingedly mounted on the front surface of the housing 246;

[0030] In this embodiment, it is convenient for the user to rotate the gear 23 so as to reclose the fire door 11 after the fire door 11 is opened in an emergency and seal the escape passage;

[0031] A third spring 2404 is fixedly installed between the horizontal plate 2401 and the fixed plate 2403 , and a handle is fixedly installed on the top of the insertion rod 2402 .

[0032] During the fire escape process of the utility model, the user opens the protective door 247 and pulls up the insertion rod 2402 to separate it from the insertion hole 249. During the separation of the insertion rod 2402 from the insertion hole 249, the rack 241 is pulled by the elasticity of the first spring 242 and the second spring 244, so that the two racks 241 are reset and the limit seat 243 is reset, and the limit seat 243 is separated from the limit hole to open the fire door 11, which can reduce the difficulty of opening the fire door 11 during the escape process and reduce the opening time of the fire door 11; and the rotating wheel 245 can facilitate the user to rotate the gear 23, so as to close the fire door 11 again after the fire door 11 is opened in an emergency, and close the escape passage.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fire door that is easy to open in an emergency, characterized in that: include: A door frame (10), wherein a fire door (11) is rotatably mounted inside the door frame (10) via hinges, and limiting holes are provided on both the top and bottom sides between the door frame (10) and the fire door (11); An emergency opening mechanism (20), the emergency opening mechanism (20) is installed through the interior of the fire door (11) and can open the fire door (11) in an emergency; The emergency opening mechanism (20) comprises a first installation cavity (21) opened on one side of the interior of the fire door (11); a second installation cavity (22) is opened inside the fire door (11) and located at the top and bottom of the first installation cavity (21); a rotating rod is rotatably installed inside the first installation cavity (21); one end of the rotating rod passes through the fire door (11) and extends to the outside of the fire door (11); a gear (23) is sleeved on the surface of the rotating rod; and an opening component (24) is installed between the first installation cavity (21) and the second installation cavity (22).

2. A fire door that is easy to open in an emergency according to claim 1, characterized in that: The opening assembly (24) comprises two racks (241) meshingly connected to both sides of the gear (23); one end of the two racks (241) located inside the first installation cavity (21) is fixedly mounted with a first spring (242); one end of the rack (241) away from the first spring (242) passes through the fire door (11) and extends to the inner cavity of the second installation cavity (22); one end of the rack (241) located inside the second installation cavity (22) is fixedly mounted with a limit seat (243); one end of the limit seat (243) passes through the fire door (11) and extends to the outside of the fire door (11); the limit seat (243) is plugged into the limit hole.

3. A fire door that is easy to open in an emergency according to claim 2, characterized in that: A second spring (244) is fixedly mounted on one side of the limiting seat (243), and one end of the second spring (244) is fixedly connected to the inner wall of the second mounting cavity (22).

4. A fire door that is easy to open in an emergency according to claim 2, characterized in that: A rotating wheel (245) is fixedly mounted on one end of the rotating rod located outside the fire door (11); a housing (246) is mounted on the surface of the fire door (11) and located on the surface of the rotating wheel (245); and a protective door (247) is hingedly mounted on the front surface of the housing (246).

5. A fire door that is easy to open in an emergency according to claim 4, characterized in that: The surface of the rotating rod located outside the fire door (11) is sleeved with a fixing seat (248), and the surface of the fixing seat (248) is provided with a plurality of insertion holes (249). A horizontal plate (2401) is fixedly installed on the surface of the fire door (11) and located inside the shell (246), and an insertion rod (2402) is installed through the surface of the horizontal plate (2401), and a fixing plate (2403) is fixedly installed on the surface of the insertion rod (2402), and the bottom end of the insertion rod (2402) is plugged into the insertion hole (249).

6. A fire door that is easy to open in an emergency according to claim 5, characterized in that: A third spring (2404) is fixedly installed between the horizontal plate (2401) and the fixed plate (2403), and a handle is fixedly installed at the top end of the insertion rod (2402).

7. The fire door that is easy to open in an emergency according to claim 1, characterized in that: The door frame (10) and the fire door (11) are hingedly connected via a two-way opening and closing hinge, and the two-way opening and closing hinge is used for the two-way opening and closing of the fire door (11).

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