Civil air defense sealing door

Abstract

The utility model provides a civil air defence sealed door, include: door frame and fixed installation in its back side main control unit, through the hinge is hinged in the door body of door frame inside, fixed installation in the back side top of door frame alarm lamp, fixed installation in the back side top of door frame and be located alarm lamp both sides side buzzer. When the door body opens, drives the U-shaped plate to remove from the shell and separates with the movable rod, and the movable rod is driven to move up and contacts the pressure sensor through the spring, and the pressure signal feedback controls the alarm lamp to show red and the buzzer to sound the alarm to remind the personnel that the door body is not closed or is not completely closed, similarly, when the door body is closed, the U-shaped plate is inserted into the shell, and the movable rod is extruded to move down through the cooperation of the inclined plane and the inclined slot to make the pressure signal disappear, the alarm lamp shows green and stops sounding the alarm at the moment, to remind the personnel that the door body has been completely closed, therefore, the effect that the closing state of the door body is detected and the alarm is realized, the use protection effect and the safety of civil air defence door are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of civil defense door technology, specifically to a civil defense sealing door. Background Technology

[0002] Civil defense doors are special protective facilities at the entrances and exits of civil defense projects. They belong to civil defense equipment and are mainly used to prevent and mitigate the harm caused by air raids, disasters and other hazards. Their core functions are protection and airtightness, and some types also have composite capabilities such as fire prevention and electromagnetic pulse protection.

[0003] A patent with publication number CN221322197U is known to disclose a sealed air-raid shelter door. Its background art addresses the problem that "existing air-raid shelter doors achieve the function of isolating gases inside and outside the door by setting a sealing strip between the door body and the door frame. When the door body closes, it squeezes the sealing strip, causing it to deform and fill the gap between the door frame and the door body, thus isolating the gas. Although this method has a good sealing function, the door body is not easy to close and needs improvement." To address this problem, the technical solution is: "It includes a door frame and a door body hinged within the door frame. The door frame has a groove surrounding it, and a sealing strip is fixed within the groove. The door frame has two pipes connected to the sealing strip, and a high-pressure pump connected to the first pipe is provided on the door frame."

[0004] However, the following problems were found in the implementation of the above-mentioned technical solutions: it is inconvenient to detect and alarm the closed status of the door during use; during fire escape and refuge, people may forget to close the door or not close it completely due to panic, which can easily cause the fire to spread and thick smoke to enter the refuge through the door gaps, endangering the safety of the people inside the refuge, thus reducing the protective effect and safety. Utility Model Content

[0005] This utility model proposes a civil defense sealing door, which solves the problem of inconvenience in detecting and alarming the closed status of the door in related technologies.

[0006] The technical solution of this utility model is as follows: a civil defense sealing door, comprising: a door frame and a main controller fixedly installed on its rear side; The door body is hinged to the inside of the door frame; An alarm light that is fixedly installed on the top rear side of the door frame; A buzzer that is fixedly installed on the top rear side of the door frame and located on both sides of the alarm light; A U-shaped plate is fixedly installed on the rear side of the door, and one end of the U-shaped plate has a bevel. A housing fixedly installed on the rear side of the door frame, wherein a slot is provided on one side of the housing to facilitate the entry of a U-shaped plate; A movable rod extends through the bottom of the sliding connection housing, and a slanted groove is provided on one side of the movable rod; A pressure sensor fixedly installed on the top wall inside the housing; And an elastic element located inside the housing for moving the movable rod upward.

[0007] Preferably, the elastic element includes a limiting block fixedly installed on the surface of the movable rod, and a spring sleeved on the surface of the movable rod, with both ends of the spring connected to the limiting block and the housing, respectively.

[0008] Preferably, the door frame is provided with an unlocking mechanism for monitoring fires.

[0009] The unlocking mechanism includes a smoke sensor fixedly installed on the top front side of the door frame, an automatic lock fixedly installed on the front side of the door, a lock sleeve block fixedly installed on the front side of the door frame and engaged with the lock tongue of the automatic lock for locking, and a password card reader fixedly installed on the front side of the door frame.

[0010] Preferably, a baffle is rotatably connected to the rear side of the door body, a U-shaped sleeve that engages with the baffle is fixedly installed on the rear side of the door frame, and a sealing strip is fixedly installed on the door frame.

[0011] Preferably, the door frame is provided with a filling mechanism for sealing the gap between it and the door body.

[0012] The filling mechanism includes a groove formed around the inner wall of the door frame, a sealing tube fixedly installed in the groove, a high-pressure pump body fixedly installed on the rear side of the door frame, an exhaust pipe fixedly installed on the rear side of the door frame and located below the high-pressure pump body, and a solenoid valve provided on the surface of the exhaust pipe. The output end of the high-pressure pump body is connected to the sealing tube through the door frame via a connecting pipe, and one end of the exhaust pipe is connected to the sealing tube through the door frame.

[0013] The working principle and beneficial effects of this utility model are as follows: When the door is opened, the U-shaped plate moves out of the housing and separates from the movable rod. The movable rod is then moved upward by a spring to contact the pressure sensor. The pressure signal is fed back and controls the alarm light to display red and the buzzer to sound an alarm to remind personnel that the door is not closed or not fully closed. Similarly, when the door is closed, the U-shaped plate inserts into the housing and, through the cooperation of the inclined surface and the inclined groove, squeezes the movable rod downward, causing the pressure signal to disappear. At this time, the alarm light displays green and stops sounding, to remind personnel that the door is fully closed. Therefore, this achieves the effect of detecting and alarming the closed status of the door, avoiding the safety hazard of fire spread or dense smoke entering due to personnel negligence in leaving the door not fully closed, and effectively improving the protective effect and safety of the air-raid shelter door. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a frontal perspective view of the present invention. Figure 2 This is a three-dimensional structural diagram of the back of the present invention; Figure 3 This is a cross-sectional perspective view of the three-dimensional structure of the shell of this utility model; Figure 4 This is a cross-sectional three-dimensional structural diagram of the door body of this utility model; Figure 5 This is a cross-sectional three-dimensional structural diagram of the door frame of this utility model; In the diagram: 1. Door frame; 2. Door body; 3. Alarm light; 4. Buzzer; 5. U-shaped plate; 6. Housing; 7. Movable rod; 8. Pressure sensor; 9. Limit block; 10. Spring; 11. Smoke sensor; 12. Automatic lock; 13. Lock sleeve block; 14. Password card reader; 15. Baffle; 16. U-shaped sleeve; 17. Sealing strip; 18. Sealing hose; 19. High-pressure pump body; 20. Exhaust pipe; 21. Solenoid valve. Detailed Implementation

[0016] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0017] Example 1 Please see Figure 1 - Figure 5 The present invention provides a civil defense sealing door, comprising: a door frame 1 and a main controller fixedly installed on its rear side; The door body 2 is hinged to the inside of the door frame 1; An alarm light 3 is fixedly installed on the top rear side of the door frame 1; Buzzers 4 are fixedly installed on the top rear side of the door frame 1 and located on both sides of the alarm light 3; A U-shaped plate 5 is fixedly installed on the rear side of the door body 2, and one end of the U-shaped plate 5 has a bevel. The housing 6 is fixedly installed on the rear side of the door frame 1, and a slot is provided on one side of the housing 6 to facilitate the entry of the U-shaped plate 5; A movable rod 7 extends through the bottom of the sliding connection housing 6, and a slanted groove is provided on one side of the movable rod 7; A pressure sensor 8 is fixedly installed on the top wall inside the housing 6. The pressure sensor 8, the alarm light 3, and the buzzer 4 are all electrically connected to the main controller. And an elastic element located inside the housing 6 for moving the movable rod 7 upward.

[0018] The elastic element includes a limiting block 9 fixedly installed on the surface of the movable rod 7, and a spring 10 sleeved on the surface of the movable rod 7. The two ends of the spring 10 are connected to the limiting block 9 and the housing 6, respectively.

[0019] The technical solution provided in this embodiment is as follows: During use, when the door 2 is closed, the U-shaped plate 5 limits the movable rod 7, causing the movable rod 7 to separate from the pressure sensor 8. The spring 10 is then compressed by the limiting block 9, and the alarm light 3 displays a green light, while the buzzer 4 remains silent. When the door 2 is opened, the door 2 causes the U-shaped plate 5 to move out of the housing 6 and separate from the movable rod 7. At this time, under the action of the spring 10, the limiting block 9 and the movable rod 7 move upwards, causing the movable rod 7 to contact the pressure sensor 8. The pressure sensor 8 receives pressure and feeds a signal back to the main controller, controlling the alarm light 3 to display red and the buzzer 4 to sound. The alarm 4 sounds to remind personnel that door 2 is not closed or not fully closed. Similarly, when door 2 is closed, the door 2 drives the U-shaped plate 5 to insert into the housing 6. With the cooperation of the inclined surface and the inclined groove, the moving rod 7 is pushed down and the pressure sensor 8 is separated, causing the pressure signal to disappear. At this time, the alarm light 3 displays green and stops sounding to remind personnel that door 2 is fully closed. Therefore, this achieves the effect of detecting and alarming the closed status of door 2, avoiding the safety hazard of fire spread or thick smoke entering due to personnel negligence in not fully closing door 2, and effectively improving the protective effect and safety of the air-raid shelter door.

[0020] Furthermore, the door frame 1 is equipped with an unlocking mechanism for monitoring fires.

[0021] The unlocking mechanism includes a smoke sensor 11 fixedly installed on the top front side of the door frame 1, an automatic lock 12 fixedly installed on the front side of the door body 2, a lock sleeve block 13 fixedly installed on the front side of the door frame 1 and engaging with the bolt of the automatic lock 12 for locking, and a password reader 14 fixedly installed on the front side of the door frame 1. Both the smoke sensor 11 and the automatic lock 12 are electrically connected to the main controller, and the automatic lock 12 is also electrically connected to the password reader 14. The automatic lock 12 is a motor-driven automatic telescopic bolt lock, such as an electric push-rod lock manufactured by Jinhan Security (Guangzhou) Intelligent Technology Co., Ltd. Both unlocking and locking are completed through the password reader 14, and the main controller can independently control the automatic lock 12 to execute unlocking commands.

[0022] Specifically, when the smoke sensor 11 detects a fire outside the door, it feeds the information back to the main controller and controls the automatic lock 12 to unlock, so that people can directly open the door 2 when escaping and taking refuge without having to unlock it again, thus saving time. Under normal conditions, when the door 2 is closed, the lock tongue of the automatic lock 12 is extended and inserted into the lock sleeve block 13 by the password card reader 14 to lock the door 2. To unlock, it can be unlocked again by the password card reader 14.

[0023] Furthermore, a baffle 15 is rotatably connected to the rear side of the door body 2, a U-shaped sleeve 16 that engages with the baffle 15 is fixedly installed on the rear side of the door frame 1, and a sealing strip 17 is fixedly installed on the door frame 1.

[0024] Specifically, when the door 2 is closed from the inside, the baffle 15 is rotated and inserted into the U-shaped sleeve 16 to facilitate closing and locking the door 2. By setting the sealing strip 17, the sealing effect between the door frame 1 and the door 2 can be improved.

[0025] Example 2 Based on Embodiment 1, in this embodiment: the door frame 1 is provided with a filling mechanism for sealing the gap between it and the door body 2.

[0026] The filling mechanism includes a groove formed around the inner wall of the door frame 1, a sealing tube 18 fixedly installed in the groove, a high-pressure pump body 19 fixedly installed on the rear side of the door frame 1, an exhaust pipe 20 fixedly installed on the rear side of the door frame 1 and located below the high-pressure pump body 19, and a solenoid valve 21 provided on the surface of the exhaust pipe 20. The output end of the high-pressure pump body 19 is connected to the sealing tube 18 through the door frame 1 via a connecting pipe, and one end of the exhaust pipe 20 is connected to the sealing tube 18 through the door frame 1. Both the high-pressure pump body 19 and the solenoid valve 21 are electrically connected to the main controller.

[0027] The technical solution provided in this embodiment is as follows: When the door 2 is completely closed, the main controller controls the high-pressure pump 19 to supply air to the sealing strip 18 through the connecting pipe, so that the sealing strip 18 expands to fill the gap between the door frame 1 and the door 2, thereby facilitating further sealing and reducing the entry of dense smoke through the gap. When opening the door, the solenoid valve 21 can be opened to exhaust air through the exhaust pipe 20, so that the sealing strip 18 can be restored and the door can be opened easily.

[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A type of airtight door for civil defense, characterized in that, include: Door frame (1) and main controller fixedly installed on its rear side; The door body (2) is hinged to the inside of the door frame (1). An alarm light (3) is fixedly installed on the top rear side of the door frame (1); A buzzer (4) is fixedly installed on the top rear side of the door frame (1) and located on both sides of the alarm light (3); A U-shaped plate (5) is fixedly installed on the rear side of the door (2), and one end of the U-shaped plate (5) is provided with a bevel; A housing (6) is fixedly installed on the rear side of the door frame (1), and a slot is provided on one side of the housing (6) to facilitate the entry of the U-shaped plate (5); A movable rod (7) extends through the bottom of the sliding connection housing (6), and a slanted slot is provided on one side of the movable rod (7); A pressure sensor (8) is fixedly installed on the top wall inside the housing (6); And an elastic element located inside the housing (6) for moving the movable rod (7) upward.

2. The airtight door for civil defense as described in claim 1, characterized in that, The elastic element includes a limiting block (9) fixedly installed on the surface of the movable rod (7) and a spring (10) sleeved on the surface of the movable rod (7). The two ends of the spring (10) are respectively connected to the limiting block (9) and the housing (6).

3. A civil defense sealing door according to claim 1, characterized in that, The door frame (1) is equipped with an unlocking mechanism for monitoring fires.

4. A civil defense sealing door according to claim 3, characterized in that, The unlocking mechanism includes a smoke sensor (11) fixedly installed on the top front side of the door frame (1), an automatic lock (12) fixedly installed on the front side of the door body (2), a lock sleeve block (13) fixedly installed on the front side of the door frame (1) and engaged with the lock tongue of the automatic lock (12) for locking, and a password card reader (14) fixedly installed on the front side of the door frame (1).

5. A civil defense sealing door according to claim 1, characterized in that, A baffle (15) is rotatably connected to the rear side of the door body (2), and a U-shaped sleeve (16) that engages with the baffle (15) is fixedly installed on the rear side of the door frame (1). A sealing strip (17) is fixedly installed on the door frame (1).

6. A civil defense sealing door according to claim 1, characterized in that, The door frame (1) is provided with a filling mechanism for sealing the gap between it and the door body (2).

7. A civil defense sealing door according to claim 6, characterized in that, The filling mechanism includes a groove formed around the inner wall of the door frame (1), a sealing tube (18) fixedly installed in the groove, a high-pressure pump body (19) fixedly installed on the rear side of the door frame (1), an exhaust pipe (20) fixedly installed on the rear side of the door frame (1) and located below the high-pressure pump body (19), and a solenoid valve (21) provided on the surface of the exhaust pipe (20). The output end of the high-pressure pump body (19) is connected to the sealing tube (18) through the door frame (1) via a connecting pipe, and one end of the exhaust pipe (20) is connected to the sealing tube (18) through the door frame (1).

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