Civil air defense door with early warning function

By installing trigger components and sealing components in the civil defense door, using Wood alloy fixing bolt to fuse trigger alarm and motor control door closing, releasing fire-proof sealant to fill gaps, solving the problem of lack of early warning and smoke spread in traditional civil defense doors, and improving fire response capabilities and sealing.

CN120401936AInactive Publication Date: 2025-08-01ANHUI SHUANGPENG IND CO LTD
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Patent Information

Application Number
CN202510649162.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-20
Publication Date
2025-08-01
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Traditional civil defense doors lack disaster warning mechanisms, cannot sense fire and other threats in a timely manner and issue alarms, and fire smoke is prone to spread through gaps, affecting the protection effect.

Method used

A civil defense door with early warning function is designed. By installing a trigger assembly and sealing assembly between the door frame and the main door, the Wood alloy fixing bolt is used to fuse the trigger sensor during a fire, the motor control door closure is started, and the gap is released through the electric push rod and the piston tube to fill the gap, enhancing the sealing property.

Benefits of technology

It realizes reliable alarm when sensor failure, prevents fire spread and smoke propagation, improves the early warning capability and sealing of the civil defense door, and ensures the safety of the protective area.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a civil air defense door with an early warning function, and belongs to the technical field of civil air defense doors, the civil air defense door comprises a main door and a door frame, a shaft hinge is fixedly mounted on the side wall of the main door, a motor is fixedly mounted on the side wall of the door frame, a rotating shaft is fixedly mounted on the motor, and the rotating shaft penetrates through the shaft hinge to be rotationally connected with the side wall of the door frame; the rotating shaft is fixedly connected with the shaft hinge, an internal groove is formed in the main door, a sealing assembly is installed in the main door and comprises a piston cylinder, a sliding groove is formed in the main door, the piston cylinder is located in the sliding groove, a diaphragm is fixedly installed on the side wall of the piston cylinder, and the piston cylinder is located in the sliding groove. A limiting plate is fixedly installed on the side wall of the piston barrel. The piston further comprises a fixing assembly. A trigger component; the fireproof door has the beneficial effects that the main door can be fixed in the door frame through the fixing assembly, a gap between the main door and the door frame can be further filled, and the triggering assembly can conveniently and rapidly deal with the fire situation.
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Description

Technical Field

[0001] The present invention relates to the field of civil air defense doors, and more particularly to a civil air defense door with a warning function. Background Art

[0002] Traditional civil air defense doors mainly focus on protection functions and lack a disaster warning mechanism. In the face of threats such as fires and shock waves, they cannot perceive and give alarms in advance, making it difficult for people to respond in time. Existing technologies mostly focus on improving structural strength and lack research and development on real-time monitoring and warning functions, making it difficult to meet modern protection requirements.

[0003] Currently, civil air defense doors on the market detect the surrounding environment through sensors to achieve the warning function. If the monitoring instrument fails, it will affect the timely warning of fires. If the sensor malfunctions and triggers a warning, it will affect normal civil air defense operations. Secondly, it is difficult to respond to the spread of fires in a timely manner during fire warnings. At the same time, the smoke generated by the fire will also spread along the gaps of the civil air defense door, further increasing the impact of the smoke on the civil air defense project. How to invent a civil air defense door with a warning function to improve these problems has become an urgent problem for those skilled in the art. Summary of the Invention

[0004] To make up for the above deficiencies, the present invention provides a civil air defense door with a warning function, aiming to improve the problems that it cannot give a timely warning when the instrument fails, and to deal with the spread of fires and the spread of smoke.

[0005] The present invention is implemented as follows:

[0006] The present invention provides a civil air defense door with a warning function, including a main door and a door frame. A hinge is fixedly installed on the side wall of the main door, and a motor is fixedly installed on the side wall of the door frame. The motor is fixedly installed with a rotating shaft, the rotating shaft passes through the hinge and is rotatably connected to the side wall of the door frame, and the rotating shaft is fixedly connected to the hinge. An internal groove is formed inside the main door, and a sealing component is installed inside the main door. The sealing component includes a piston cylinder. A sliding groove is formed inside the main door, the piston cylinder is located inside the sliding groove, a diaphragm is fixedly installed on the side wall of the piston cylinder, and a limiting plate is fixedly installed on the side wall of the piston cylinder. It further includes:

[0007] A fixing component, which is located inside the main door and is used to strengthen the connection and sealing between the main door and the door frame;

[0008] A triggering component, which is located inside the main door and is used to start the motor.

[0009] Preferably, the sealing assembly further includes a second spring, which is located inside the sliding groove, sleeved on the side wall of the piston cylinder, and fixedly connected to the inner wall of the sliding groove and the side wall of the limiting plate at both ends. The limiting plate is slidably connected to the inner wall of the sliding groove, and an object block is fixedly installed on the side wall of the limiting plate, with one end of the object block located inside the inner groove.

[0010] Preferably, an extrusion groove is formed in the inner wall of the door frame, a pointed row is fixedly installed on the side wall of the extrusion groove, and a limiting groove is formed in the inner wall of the door frame.

[0011] Preferably, a main board is fixedly installed on the inner wall of the inner groove, an electric push rod is fixedly installed on the side wall of the main board, the electric push rod is located inside the inner groove, a sliding plate is fixedly installed at the end of the electric push rod away from the main board, a through hole is formed in the side wall of the sliding groove, and one side of the sliding plate is slidably connected to the object block.

[0012] Preferably, the fixing assembly includes a piston tube, a T-shaped piston rod and a first spring. The piston tube is located inside the inner groove, one end of the T-shaped piston rod is located inside the piston tube, the other end of the T-shaped piston rod is fixedly connected to the side wall of the sliding plate, the first spring is sleeved on the outer wall of the T-shaped piston rod, and both ends of the first spring are fixedly connected to one end of the T-shaped piston rod and the inner wall of the piston tube respectively. A liquid discharge hole is formed in the side wall of the piston tube.

[0013] Preferably, the triggering assembly includes a support plate, a support column, a fixing bolt and a pressing rod. A transfer groove is formed in the side wall of the main door, the support plate is fixedly connected to the side wall of the support column, the support column is fixedly connected to the side wall of the door frame, the fixing bolt passes through the support plate and is fixedly connected to the pressing rod, the pressing rod is located inside the transfer groove, and a sensor is fixedly installed on the inner wall of the transfer groove, and the sensor is located directly below the pressing rod.

[0014] The beneficial effects of the present invention are:

[0015] 1. The main door and the door frame are connected through the support plate to facilitate restricting the door frame and preventing the main door from contacting the door frame under the action of other external forces. Secondly, the fixing bolt fixing the support plate melts during a fire, and at this time, the fixing and limiting function of the support plate fails. Secondly, it can also control the pressing rod below the support plate to fall and contact the sensor, thereby generating an electrical signal and then alarming, so as to prevent problems such as false alarms or no alarms caused by malfunctions of the early warning system. At the same time, the electrical signal generated by the sensor controls the motor to start, and then controls the rotation of the civil air defense door to prevent the spread of fire.

[0016] 2. When the motor stops running, the electrical signal generated by the sensor controls the start of the electric push rod. The electric push rod controls the up and down movement of the sliding plate, and then drives the fixed component to move up and down. When the piston tube is inserted into the limit groove, it is convenient to fix the main door and the door frame together. At this time, the electric push rod moves upward again, so that the T-shaped piston rod then moves upward, and the fireproof sealant in the piston tube is released by extrusion, so as to fill the gaps on the left and right sides between the main door and the door frame. At the same time, when the sliding plate moves up and down, it squeezes the block, so that the piston cylinder moves left and right under the action of the block, and the piston cylinder is fixed to the extrusion groove. Then, the sharp row in the extrusion groove contacts the diaphragm on the piston cylinder, and then the diaphragm is squeezed and broken, and the fireproof sealant in the piston cylinder is released, so as to fill the gaps at the upper and lower ends between the main door and the door frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0018] Figure 1 is a schematic front view structure diagram of a civil air defense door with a warning function provided by an embodiment of the present invention;

[0019] Figure 2 is a schematic second view structure diagram of a civil air defense door with a warning function provided by an embodiment of the present invention;

[0020] Figure 3 is a schematic internal structure diagram of the main door of a civil air defense door with a warning function provided by an embodiment of the present invention;

[0021] Figure 4 is a schematic cross-sectional view of the internal structure of the main door of a civil air defense door with a warning function provided by an embodiment of the present invention;

[0022] Figure 5 is a schematic cross-sectional view of the first view structure of a civil air defense door with a warning function provided by an embodiment of the present invention;

[0023] Figure 6 is a schematic cross-sectional view of the first view structure of the door frame of a civil air defense door with a warning function provided by an embodiment of the present invention;

[0024] Figure 7 is a civil air defense door with a warning function provided by an embodiment of the present invention Figure 4 Structure A enlarged schematic diagram;

[0025] Figure 8It is a civil air defense door with a warning function provided by an embodiment of the present invention Figure 4 Schematic enlarged view of Structure B;

[0026] Figure 9 It is a civil air defense door with a warning function provided by an embodiment of the present invention Figure 4 Schematic enlarged view of Structure C;

[0027] Figure 10 It is a civil air defense door with a warning function provided by an embodiment of the present invention Figure 6 Schematic enlarged view of Structure D.

[0028] In the figure: 1, main door; 2, door frame; 3, hinge; 4, motor; 5, rotating shaft; 6, fixing component; 601, piston tube; 602, T-shaped piston rod; 603, first spring; 604, liquid discharge hole; 7, sealing component; 701, sliding groove; 702, block; 703, limiting plate; 704, piston cylinder; 705, second spring; 706, diaphragm; 8, triggering component; 801, support plate; 802, support column; 803, fixing bolt; 804, pressing rod; 805, sensor; 806, transmission groove; 9, extrusion groove; 10, pointed row; 11, limiting groove; 12, electric push rod; 13, main board; 14, internal groove; 15, perforation; 16, sliding plate. Specific embodiments

[0029] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Example, refer to Figures 1 - 10 , a civil air defense door with a warning function, including a main door 1 and a door frame 2. A hinge 3 is fixedly installed on the side wall of the main door 1, a motor 4 is fixedly installed on the side wall of the door frame 2, the motor 4 is fixedly installed with a rotating shaft 5, the rotating shaft 5 passes through the hinge 3 and is rotatably connected to the side wall of the door frame 2, the rotating shaft 5 is fixedly connected to the hinge 3, an internal groove 14 is opened inside the main door 1, a sealing component 7 is installed inside the main door 1, and further includes:

[0031] A fixing component 6, which is located inside the main door 1 and is used to reinforce the connection and sealing between the main door 1 and the door frame 2;

[0032] A triggering component 8, which is located inside the main door 1 and is used to start the motor 4.

[0033] Furthermore, the trigger component 8 includes a support plate 801, a support column 802, a fixing bolt 803, and a pressing rod 804. A transfer groove 806 is formed in the side wall of the main door 1. The support plate 801 is fixedly connected to the side wall of the support column 802, and the support column 802 is fixedly connected to the side wall of the door frame 2. The fixing bolt 803 passes through the support plate 801 and is fixedly connected to the pressing rod 804. The pressing rod 804 is located inside the transfer groove 806. A sensor 805 is fixedly installed on the inner wall of the transfer groove 806, and the sensor 805 is located directly below the pressing rod 804. An extrusion groove 9 is formed in the inner wall of the door frame 2, and a pointed row 10 is fixedly installed on the side wall of the extrusion groove 9. A limiting groove 11 is formed in the inner wall of the door frame 2. A main board 13 is fixedly installed on the inner wall of the inner groove 14, and an electric push rod 12 is fixedly installed on the side wall of the main board 13. The electric push rod 12 is located inside the inner groove 14. One end of the electric push rod 12 away from the main board 13 is fixedly installed with a sliding plate 16. A through hole 15 is formed in the side wall of the sliding groove 701, and the sliding plate 16 is slidably connected to a block 702.

[0034] It should be noted that: Under normal conditions, the support plate 801 connects the main door 1 and the door frame 2 through the fixing bolt 803 to limit the movement of the main door 1. The fixing bolt 803 can be made of Wood's alloy, but is not limited thereto. Due to the relatively low melting point of Wood's alloy, in case of a fire, when the temperature rises, the fixing bolt 803 reaches its melting point and then melts. At this time, the support plate 801 loses its limit on the main door 1 and the door frame 2. At the same time, when the fixing bolt 803 melts, the pressing rod 804 below the fixing bolt 803 drops and then contacts the touch sensor 805. The sensor 805 is electrically connected to the motor 4 and an external alarm. The sensor 805 can be a signal sensor 805, but is not limited thereto, so as to generate an electrical signal by pressing the touch sensor 805 to control the alarm to give an alarm, preventing losses caused by the failure of its warning device to give an alarm in time and also preventing the alarm from being triggered due to other external factors, so as to prevent losses caused by these reasons and enhance the warning reliability. At the same time, after receiving the electrical signal generated by the sensor 805, the motor 4 starts, drives the rotating shaft 5 to rotate, and then drives the main door 1 through the hinge 3 so that the main door 1 contacts the door frame 2, thus realizing the door closing process, so as to prevent the spread of fire and the expansion of the fire, and at the same time prevent the smoke generated by the fire from passing through the door frame 2, thereby preventing losses caused by the smoke.

[0035] Refer to Figures 4 - 10, further; the fixing component 6 includes a piston tube 601, a T-shaped piston rod 602 and a first spring 603. The piston tube 601 is located inside the inner groove 14. One end of the T-shaped piston rod 602 is located inside the piston tube 601, and the other end of the T-shaped piston rod 602 is fixedly connected to the side wall of the sliding plate 16. The first spring 603 is sleeved on the outer wall of the T-shaped piston rod 602, and the two ends of the first spring 603 are respectively fixedly connected to one end of the T-shaped piston rod 602 and the inner wall of the piston tube 601. A liquid discharge hole 604 is formed in the side wall of the piston tube 601. The sealing component 7 includes a piston cylinder 704. A sliding groove 701 is formed inside the main door 1. The piston cylinder 704 is located inside the sliding groove 701. A diaphragm 706 is fixedly installed on the side wall of the piston cylinder 704. A limiting plate 703 is fixedly installed on the side wall of the piston cylinder 704. The sealing component 7 further includes a second spring 705. The second spring 705 is located inside the sliding groove 701. The second spring 705 is sleeved on the side wall of the piston cylinder 704. The two ends of the second spring 705 are respectively fixedly connected to the inner wall of the sliding groove 701 and the side wall of the limiting plate 703. The limiting plate 703 is slidably connected to the inner wall of the sliding groove 701. An object block 702 is fixedly installed on the side wall of the limiting plate 703. One end of the object block 702 is located inside the inner groove 14.

[0036] It should be noted that: after the main door 1 contacts the door frame 2, while the motor 4 stops running, the electric signal generated by the sensor 805 controls the output end of the electric push rod 12 to extend, thereby pushing the sliding plate 16 to move towards one side of the limiting groove 11, and driving the T-shaped piston rod 602 and the piston tube 601 of the fixing component 6 to move synchronously, so that the piston tube 601 is inserted into the limiting groove 11 to fix the main door 1 and the door frame 2, preventing the main door 1 and the door frame 2 from separating due to the failure to fix the main door 1, facilitating the fixing of the main door 1 and the door frame 2, and further achieving a reinforcement effect, enhancing the structural strength after their connection. At the same time, the electric push rod 12 continues to work. Since the piston tube 601 contacts the door frame 2, the piston tube 601 will no longer move, so that the T-shaped piston rod 602 continues to slide inside the piston tube 601 and stretches the first spring 603, thereby squeezing the material inside the piston tube 601. Finally, the material is filled into the gap between the main door 1 and the door frame 2 through the liquid discharge hole 604. The material can be fireproof sealant, but is not limited thereto. Through the fire resistance performance and good sealing and bonding ability of the fireproof sealant, it is convenient to seal and reinforce the gap between the main door 1 and the door frame 2. At the same time, when the sliding plate 16 moves, it contacts the block 702 and squeezes the block 702, so that the block 702 pushes the limiting plate 703, and the limiting plate 703 drives the piston cylinder 704 to slide inside the sliding groove 701 and compresses the second spring 705. Then, the end of the piston cylinder 704 with the diaphragm 706 is inserted through the perforation 15 and into the extrusion groove 9, further achieving a reinforcement effect and enhancing the structural strength after their connection. At the same time, as the piston cylinder 704 continues to be inserted, an interaction force will be generated between the pointed row 10 and the diaphragm 706, so that the pointed row 10 pierces the diaphragm 706, and the fireproof sealant in the piston cylinder 704 is released into the gap between the main door 1 and the door frame 2, facilitating the filling of the gaps on both sides of the door frame 2, thereby improving the stability of the door body, preventing the smoke generated by the fire from entering through the gap between the main door 1 and the door frame 2 and having an impact, enhancing the sealing performance of the door body, better blocking the smoke, hot air, etc. during the fire, and ensuring the safety of the protected area.

[0037] It should be noted that the specific model and specification of the motor need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in the field, so it will not be elaborated in detail.

[0038] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air defense door with a warning function, comprising a main door (1) and a door frame (2). A shaft leaf (3) is fixedly installed on the side wall of the main door (1), and a motor (4) is fixedly installed on the side wall of the door frame (2). The motor (4) is fixedly installed with a rotating shaft (5). The rotating shaft (5) penetrates through the shaft leaf (3) and is rotatably connected to the side wall of the door frame (2). The rotating shaft (5) is fixedly connected to the shaft leaf (3). An internal groove (14) is formed inside the main door (1), and it is characterized in that, A sealing component (7) is installed inside the main door (1). The sealing component (7) includes a piston cylinder (704). A sliding groove (701) is formed inside the main door (1). The piston cylinder (704) is located inside the sliding groove (701). A diaphragm (706) is fixedly installed on the side wall of the piston cylinder (704). A limiting plate (703) is fixedly installed on the side wall of the piston cylinder (704). It further includes: A fixing component (6), which is located inside the main door (1) and is used to strengthen the connection and sealing between the main door (1) and the door frame (2); A triggering component (8), which is located inside the main door (1) and is used to start the motor (4).

2. The air defense door with a warning function according to claim 1, characterized in that, The sealing component (7) further includes a second spring (705). The second spring (705) is located inside the sliding groove (701). The second spring (705) is sleeved on the side wall of the piston cylinder (704). The two ends of the second spring (705) are respectively fixedly connected to the inner wall of the sliding groove (701) and the side wall of the limiting plate (703). The limiting plate (703) is slidably connected to the inner wall of the sliding groove (701). An object block (702) is fixedly installed on the side wall of the limiting plate (703). One end of the object block (702) is located inside the inner groove (14).

3. The air defense door with a warning function according to claim 1, characterized in that, An extrusion groove (9) is formed on the inner wall of the door frame (2). A pointed row (10) is fixedly installed on the side wall of the extrusion groove (9). A limiting groove (11) is formed on the inner wall of the door frame (2).

4. The air defense door with a warning function according to claim 2, characterized in that, A main board (13) is fixedly installed on the inner wall of the inner groove (14). An electric push rod (12) is fixedly installed on the side wall of the main board (13). The electric push rod (12) is located inside the inner groove (14). The end of the electric push rod (12) away from the main board (13) is fixedly installed with a sliding plate (16). A through hole (15) is formed on the side wall of the sliding groove (701). One side of the sliding plate (16) is slidably connected to the object block (702).

5. The air defense door with a warning function according to claim 1, characterized in that, The fixing component (6) includes a piston tube (601), a T-shaped piston rod (602) and a first spring (603). The piston tube (601) is located inside the inner groove (14). One end of the T-shaped piston rod (602) is located inside the piston tube (601). The other end of the T-shaped piston rod (602) is fixedly connected to the side wall of the sliding plate (16). The first spring (603) is sleeved on the outer wall of the T-shaped piston rod (602). The two ends of the first spring (603) are respectively fixedly connected to one end of the T-shaped piston rod (602) and the inner wall of the piston tube (601). A liquid discharge hole (604) is formed on the side wall of the piston tube (601).

6. The air defense door with a warning function according to claim 4, characterized in that, The trigger assembly (8) includes a support plate (801), a support column (802), a fixing bolt (803) and a pressing rod (804). A transfer groove (806) is formed in the side wall of the main door (1). The support plate (801) is fixedly connected to the side wall of the support column (802). The support column (802) is fixedly connected to the side wall of the door frame (2). The fixing bolt (803) passes through the support plate (801) and is fixedly connected to the pressing rod (804). The pressing rod (804) is located inside the transfer groove (806). A sensor (805) is fixedly installed on the inner wall of the transfer groove (806), and the sensor (805) is located directly below the pressing rod (804).