Flame-retardant wooden fireproof door
By introducing the transmission mechanism and flame retardant mechanism of the drive motor and controller into the fire door, the problem of the fire door cannot be automatically closed in the prior art is solved, and timely locking and flame retardant effects are achieved in the fire, providing a safe escape environment.
Patent Information
- Application Number
- CN202422419140.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-08
AI Technical Summary
Existing wooden fire doors need to be manually locked and closed when a fire occurs, so they cannot isolate the fire source in time, and mechanical equipment is prone to failure due to dust and humid air.
The drive motor and controller in the transmission mechanism are adopted to isolate the influence of dust and humid air by protecting the shell. The smoke alarm triggers the controller to drive the motor to operate, realizing automatic locking of the fire door, and enhancing the door body rigidity and flame retardant effect through the flame retardant mechanism.
The fire door is closed in a timely manner during a fire, preventing harmful smoke from entering, enhancing the rigidity of the door body, extending the flame retardant time, and providing safety guarantees for personnel evacuation.
Smart Images

Figure CN223190341U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wooden fire doors, in particular to a flame-retardant wooden fire door. Background Art
[0002] Wooden fire doors are used as fire-resistant partitions in buildings. They are typically installed in fire walls, stairwell entrances, or duct openings, playing a vital role in minimizing fire damage. The design and manufacture of wooden fire doors must adhere to specific standards and specifications to ensure they provide adequate fire resistance and sealing performance in the event of a fire.
[0003] Wooden fire doors are more beautiful in appearance than steel fire doors and are usually installed indoors and in places with high traffic. The protection of fire doors can increase people's survival time in a fire, thereby providing more time for rescue personnel. However, most existing fire doors need to be manually locked and closed when a fire breaks out, making it impossible to isolate the fire source in the first place. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a flame retardant wooden fireproof door.
[0005] The utility model adopts the following technical solutions: a flame-retardant wooden fire door, comprising a transmission mechanism, a flame-retardant mechanism and a main body mechanism, wherein the transmission mechanism is located on the outer wall of the main body mechanism, and the flame-retardant mechanism is located inside the main body mechanism;
[0006] The transmission mechanism includes a protective shell, an inner wall of the protective shell is fixedly connected to a driving motor, and an inner wall of the protective shell is fixedly connected to a controller.
[0007] Through the above technical solution, the protective shell is fixedly connected to the drive motor and the controller. By arranging the drive motor and the controller inside the protective shell, dust and humid air can be effectively prevented from affecting the drive motor and the controller, thereby avoiding the fire door being unable to close in time due to mechanical equipment failure when a fire occurs. When the smoke alarm detects a smoke fire, the signal is transmitted to the controller, and the controller sends a control signal to operate the drive motor, so that the fire door can be locked in time to achieve a flame retardant effect.
[0008] As a further improvement of the above solution, the outer wall of the drive motor is fixedly connected to a rotating shaft, the inner wall of the rotating shaft is fixedly connected to a connecting rod, the outer wall of the connecting rod is fixedly connected to a movable bracket, and the inner wall of the movable bracket is rotatably connected to a first fixed base plate.
[0009] Through the above technical solution, the driving motor is fixedly connected to the rotating shaft, and the rotating shaft is fixedly connected to the connecting rod. When the driving motor receives the driving signal, the driving motor runs and drives the rotating shaft to rotate. When the rotating shaft rotates, the connecting rod fixedly connected to the rotating shaft moves. A movable bracket is provided to be fixedly connected to the connecting rod. The movable bracket is rotatably connected to the first fixed base plate. When the connecting rod moves, the movable bracket connected to it drives the first fixed base plate to move at the same time. By setting the first fixed base plate to be fixedly connected to the first door panel, when the driving motor is driven, the first door panel is driven to rotate through the connecting rod, thereby achieving the effect of locking the fire door.
[0010] As a further improvement of the above solution, the outer wall of the protective shell is fixedly connected to a second fixed base plate, and the inner wall of the second fixed base plate is threadedly connected to a fixing nut.
[0011] Through the above technical solution, the protective shell is fixedly connected to the second fixed base plate, and the second fixed base plate is threadedly connected to the fixing nut. The protective shell can be fixedly connected to the main door frame through the fixing nut, thereby increasing the stability of the overall mechanical structure.
[0012] As a further improvement of the above solution, the flame retardant mechanism includes a first door panel, the outer wall of the first door panel is clamped with a sealing strip, the outer wall of the first door panel is fixedly connected to a supporting steel plate, and the outer wall of the supporting steel plate is fixedly connected to a second door panel.
[0013] Through the above technical solution, the first door panel is clamped with a sealing strip, and by arranging the sealing strip between the first door panel and the main door frame, the sealing strip can be prevented from entering the room through the gap between the first door panel and the main door frame when a fire occurs, thereby affecting the people taking shelter in the room. By arranging a supporting steel plate between the first door panel and the second door panel, the rigidity of the overall fire door can be increased, thereby preventing the fire door from collapsing due to prolonged burning.
[0014] As a further improvement of the above solution, a flame retardant filler is provided inside the supporting steel plate.
[0015] Through the above technical solution, a flame retardant filler is provided inside the supporting steel plate, and the flame retardant effect of the overall fire door can be increased by the flame retardant filler.
[0016] As a further improvement of the above solution, the main body mechanism includes a main door frame, and the outer wall of the main door frame is fixedly connected with a hinge.
[0017] Through the above technical solution, the main door frame is fixedly connected to the hinge, and the main door frame and the first door panel are fixedly connected through the hinge. When the fire door rotates, it can be rotated through the hinge as a fulcrum, thereby increasing the flexibility of the equipment during rotation.
[0018] As a further improvement of the above solution, a smoke alarm is fixedly connected to the outer wall of the second door panel, a handle is fixedly connected to the outer wall of the first door panel, and a lock core is clamped on the outer wall of the sealing strip.
[0019] Through the above technical solution, the second door panel is fixedly connected to the smoke alarm. When the smoke alarm detects a fire, it transmits a signal to the controller, thereby controlling the drive motor to drive the fire door to close. A handle is set to be fixedly connected to the outer walls of the first door panel and the second door panel. By turning the handle, the lock core can be directly driven to rotate, thereby achieving the effect of manually opening and closing the door.
[0020] Compared with the prior art, the beneficial effects of the present invention are:
[0021] The utility model is provided with a protective shell to fix the drive motor and the controller. By arranging the drive motor and the controller inside the protective shell, dust and humid air can be effectively prevented from affecting the drive motor and the controller, ensuring that the mechanical components can operate stably in an emergency. When the smoke alarm detects the occurrence of smoke and dust fire, the signal is transmitted to the controller, and the controller sends a control signal to make the drive motor run, so that the fire door can be closed in time, and the flame retardant effect is achieved. The drive motor is fixedly connected to the rotating shaft, and the rotating shaft is fixedly connected to the connecting rod. When the drive motor receives the driving signal, the drive motor runs and drives the rotating shaft to rotate. When the rotating shaft rotates, the connecting rod fixedly connected to the rotating shaft moves. A movable bracket is provided to be fixedly connected to the connecting rod. The movable bracket is rotatably connected to the first fixed base plate. When the connecting rod moves, the movable bracket connected to the first fixed base plate drives the first fixed base plate to move at the same time. By arranging the first fixed base plate to be fixedly connected to the first door panel, the first door panel is moved when the drive motor drives, thereby achieving the effect of locking the fire door.
[0022] The utility model provides a first door panel to clamp a sealing strip, and provides a sealing strip between the first door panel and the main door frame. By providing the sealing strip, harmful smoke generated during a fire can be effectively prevented from entering the room, providing a safer environment for people taking shelter from the disaster. By providing a supporting steel plate between the first door panel and the second door panel, the rigidity of the overall fire door can be increased, preventing the door body from deformation or collapse under long-term high temperature. By providing a flame retardant filler inside the supporting steel plate, the flame retardant effect of the overall fire door can be increased by the flame retardant filler, thereby buying precious time for the evacuation of personnel. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0024] Figure 2 This is a schematic diagram of the back of the overall structure of the utility model;
[0025] Figure 3 This is a schematic diagram of the transmission structure of the utility model;
[0026] Figure 4 This is a schematic diagram of the flame retardant mechanism of the utility model;
[0027] Figure 5 This is a schematic diagram of the exploded flame retardant mechanism of the present invention.
[0028] Description of main symbols:
[0029] 1. Transmission mechanism; 101. Protective housing; 102. Drive motor; 103. Controller; 104. Rotating shaft; 105. Connecting rod; 106. First fixed base plate; 107. Movable bracket; 108. Fixing nut; 109. Second fixed base plate; 2. Flame retardant mechanism; 201. First door panel; 202. Sealing strip; 203. Supporting steel plate; 204. Flame retardant filler; 205. Second door panel; 3. Main body mechanism; 301. Main door frame; 302. Smoke alarm; 303. Handle; 304. Hinge; 305. Lock cylinder. DETAILED DESCRIPTION
[0030] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0031] Example:
[0032] Please combine Figure 1-5 , a flame-retardant wooden fire door of this embodiment includes a transmission mechanism 1, a flame-retardant mechanism 2 and a main body mechanism 3, the transmission mechanism 1 is located on the outer wall of the main body mechanism 3, and the flame-retardant mechanism 2 is located inside the main body mechanism 3;
[0033] The transmission mechanism 1 includes a protective shell 101 , a driving motor 102 is fixedly connected to the inner wall of the protective shell 101 , and a controller 103 is fixedly connected to the inner wall of the protective shell 101 .
[0034] The outer wall of the driving motor 102 is fixedly connected to the rotating shaft 104 , the inner wall of the rotating shaft 104 is fixedly connected to the connecting rod 105 , the outer wall of the connecting rod 105 is fixedly connected to the movable bracket 107 , and the inner wall of the movable bracket 107 is rotatably connected to the first fixed base plate 106 .
[0035] The outer wall of the protective shell 101 is fixedly connected to the second fixing base plate 109 , and the inner wall of the second fixing base plate 109 is threadedly connected to the fixing nut 108 .
[0036] The flame retardant mechanism 2 includes a first door panel 201 , an outer wall of which is clamped with a sealing strip 202 , an outer wall of which is fixedly connected to a supporting steel plate 203 , and an outer wall of which is fixedly connected to a second door panel 205 .
[0037] A flame retardant filler 204 is provided inside the supporting steel plate 203 .
[0038] The main body mechanism 3 includes a main door frame 301 , and a hinge 304 is fixedly connected to the outer wall of the main door frame 301 .
[0039] A smoke alarm 302 is fixedly connected to the outer wall of the second door panel 205 , a handle 303 is fixedly connected to the outer wall of the first door panel 201 , and a lock core 305 is clamped to the outer wall of the sealing strip 202 .
[0040] The implementation principle of a flame retardant wooden fireproof door in the embodiment of the present application is as follows: a protective shell 101 is set to be fixedly connected to a driving motor 102 and a controller 103. By setting the driving motor 102 and the controller 103 inside the protective shell 101, the influence of external dust and humid air can be effectively isolated, ensuring the reliable operation of mechanical components in an emergency situation. The driving motor 102 is set to be fixedly connected to the rotating shaft 104, and the rotating shaft 104 is fixedly connected to the connecting rod 105. When the driving motor 102 receives a driving signal, the driving motor 102 drives the rotating shaft 104 to rotate, and drives the first fixed bottom plate 106 to move through the connecting rod 105 and the movable bracket 107. By setting the first fixed bottom plate 106 to be fixedly connected to the first door panel 201, when the driving motor 10 2 is driven, the first door panel 201 is moved, so that the fire door can be locked. The first door panel 201 is set to clamp the sealing strip 202. By setting the sealing strip 202 between the first door panel 201 and the main door frame 301, the sealing strip 202 can effectively prevent smoke from penetrating, providing a safer environment for people taking shelter from disasters. By setting the supporting steel plate 203 between the first door panel 201 and the second door panel 205, the overall rigidity of the fire door can be enhanced, deformation at high temperature can be prevented, and the flame retardant time can be extended. By setting the flame retardant filler 204 inside the supporting steel plate 203, the flame retardant effect of the overall fire door is enhanced by the supporting steel plate 203 and the flame retardant filler 204, providing more reliable protection for the safety of people in fire.
[0041] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.
Claims
1. A flame retardant wooden fire door, characterized by: It comprises a transmission mechanism (1), a flame retardant mechanism (2) and a main body mechanism (3), wherein the transmission mechanism (1) is located on the outer wall of the main body mechanism (3), and the flame retardant mechanism (2) is located inside the main body mechanism (3); The transmission mechanism (1) comprises a protective shell (101), a driving motor (102) is fixedly connected to the inner wall of the protective shell (101), and a controller (103) is fixedly connected to the inner wall of the protective shell (101).
2. The flame-retardant wooden fire door according to claim 1, characterized in that: The outer wall of the driving motor (102) is fixedly connected to a rotating shaft (104), the inner wall of the rotating shaft (104) is fixedly connected to a connecting rod (105), the outer wall of the connecting rod (105) is fixedly connected to a movable bracket (107), and the inner wall of the movable bracket (107) is rotatably connected to a first fixed base plate (106).
3. The flame-retardant wooden fire door according to claim 1, characterized in that: The outer wall of the protective shell (101) is fixedly connected to a second fixed base plate (109), and the inner wall of the second fixed base plate (109) is threadedly connected to a fixing nut (108).
4. The flame-retardant wooden fire door according to claim 1, characterized in that: The flame retardant mechanism (2) comprises a first door panel (201), the outer wall of the first door panel (201) is clamped with a sealing strip (202), the outer wall of the first door panel (201) is fixedly connected to a supporting steel plate (203), and the outer wall of the supporting steel plate (203) is fixedly connected to a second door panel (205).
5. The flame-retardant wooden fire door according to claim 4, characterized in that: A flame retardant filler (204) is provided inside the supporting steel plate (203).
6. The flame-retardant wooden fire door according to claim 1, characterized in that: The main body mechanism (3) comprises a main door frame (301), and the outer wall of the main door frame (301) is fixedly connected with a hinge (304).
7. The flame-retardant wooden fire door according to claim 4, characterized in that: The outer wall of the second door panel (205) is fixedly connected to a smoke alarm (302), the outer wall of the first door panel (201) is fixedly connected to a handle (303), and the outer wall of the sealing strip (202) is clamped with a lock core (305).