阅读说明：本技术 一种防变形防爆人防门 (Anti-deformation explosion-proof civil air-defense door ) 是由 樊长鸣 于 2021-07-26 设计创作，主要内容包括：本发明提供一种防变形防爆人防门,涉及民防防护设备领域。该防变形防爆人防门包括墙体、安装板、第一连接板、第二连接板、防护板和控制板,第二连接板固定连接在安装板的左端外壁,第一连接板固定连接在安装板的右端外壁,墙体的一侧靠近顶端处开设有安装槽,且安装槽的内壁固定连接有控制电机,控制电机的输出轴通过连轴器安装板的内壁设置有滑槽,防护板通过滑槽与安装板滑动连接,安装板的内部设置有缓冲机构,防护板的一侧外壁设置有防护机构,墙体靠近第一连接板的一端固定连接有控制板,控制板的一侧外壁设置有电动伸缩杆,且电动伸缩杆活塞杆的一端固定连接有曲面活动板。该防变形防爆人防门能够将部分气流导向反方向,与冲击气流产生对冲,降低了冲击气流的强度,能够减少冲击气流对于人防门的冲击力。(The invention provides an anti-deformation and anti-explosion civil air defense door, and relates to the field of civil air defense protection equipment. This shape explosion-proof people's air defense door of preapring for an unfavorable turn of events includes the wall body, the mounting panel, first connecting plate, the second connecting plate, guard plate and control panel, second connecting plate fixed connection is at the left end outer wall of mounting panel, first connecting plate fixed connection is at the right-hand member outer wall of mounting panel, one side of wall body is close to top department and has seted up the mounting groove, and the inner wall fixedly connected with control motor of mounting groove, the inner wall that the output shaft of control motor passes through the shaft joint mounting panel is provided with the spout, the guard plate passes through spout and mounting panel sliding connection, the inside of mounting panel is provided with buffer gear, one side outer wall of guard plate is provided with protection machanism, the one end fixedly connected with control panel that the wall body is close to first connecting plate, one side outer wall of control panel is provided with electric telescopic handle, and the one end fixedly connected with curved surface fly leaf of electric telescopic handle piston rod. This explosion-proof people's air defense door of preapring for an unfavorable turn of events shape can produce the offset with the impact air current with partial air current direction in the opposite direction, has reduced the intensity of impact air current, can reduce the impact force of impact air current to people's air defense door.)

1. The utility model provides an explosion-proof people's air defense door of preapring for an unfavorable turn of events shape, includes wall body, mounting panel, first connecting plate, second connecting plate, guard plate and control panel, its characterized in that: the second connecting plate is fixedly connected with the outer wall of the left end of the mounting plate, the first connecting plate is fixedly connected with the outer wall of the right end of the mounting plate, a mounting groove is arranged on one side of the wall body close to the top end, and the inner wall of the mounting groove is fixedly connected with a control motor, the output shaft of the control motor is provided with a chute through the inner wall of the mounting plate of a coupling, the protection plate is connected with the mounting plate in a sliding way through a sliding chute, a buffer mechanism is arranged inside the mounting plate, the outer wall of one side of the protection plate is provided with a protection mechanism, one end of the wall body close to the first connecting plate is fixedly connected with a control plate, the outer wall of one side of the control plate is provided with an electric telescopic rod, and one end fixedly connected with curved surface fly leaf of electric telescopic handle piston rod, the fixed slot has been seted up to one side outer wall of curved surface fly leaf, just the outer wall that the curved surface fly leaf is close to the fixed slot sets up the seal groove of symmetric distribution.

2. The deformation-preventing explosion-proof people's air defense door of claim 1, characterized in that: the wall body is characterized in that the outer wall of the other side of the wall body is fixedly connected with fixing plates which are symmetrically distributed at intervals, a control rod is arranged on the inner wall of each fixing plate, and a supporting plate is fixedly connected to one end of each control rod.

3. The deformation-preventing explosion-proof people's air defense door of claim 1, characterized in that: the buffer mechanism comprises a reinforcing plate, a first buffer air bag, a buffer spring and a sliding plate, wherein the reinforcing plate is fixedly connected to the outer wall of the mounting plate, one end of the buffer spring is fixedly connected to the inner wall of one side of the mounting plate, the other end of the buffer spring is fixedly connected with the sliding plate, and the first buffer air bag used for buffering is further arranged between the sliding plate and the mounting plate.

4. The deformation-preventing explosion-proof people's air defense door of claim 3, characterized in that: the mounting panel is characterized in that a limiting plate is fixedly connected to the inner wall of one side of the mounting panel, an air inlet pipe is arranged on the outer wall of one side of the limiting plate, the air inlet pipe is distributed equidistantly, a first vent pipe is arranged at one end of the air inlet pipe, a ventilation cavity is formed in the semicircular plate, and the ventilation cavity is communicated with the first vent pipe.

5. The deformation-preventing explosion-proof people's air defense door of claim 4, characterized in that: the inside fixedly connected with driving motor of semicircle board, just driving motor's one end fixedly connected with dead lever, the dead lever with fixed slot looks adaptation on the curved surface fly leaf, still set up on the semicircle board with dead lever symmetric distribution, just bottom inner wall fixedly connected with connecting spring, connecting spring's one end fixedly connected with rectangular channel, the rectangular channel with inner wall sliding connection, the bottom with it still is provided with the second breather pipe that is used for the intercommunication to ventilate between the chamber.

6. The deformation-preventing explosion-proof people's air defense door of claim 1, characterized in that: protection machanism includes the fixed station, the bottom fixed connection of fixed station is in the bottom inner wall of guard plate, the both ends outer wall of fixed station is the arcwall face, just the fixed station is close to the outer wall fixedly connected with stopper of bottom, fixedly connected with bracing piece between the fixed station, the top swivelling joint of bracing piece has the rotor plate of symmetric distribution, the bottom outer wall fixedly connected with welding plate of rotor plate, the bottom inner wall fixedly connected with connection platform of guard plate, just connect the platform with fixedly connected with protection spring between the welding plate.

7. The deformation-preventing explosion-proof people's air defense door of claim 6, characterized in that: the inside of fixed station is provided with second buffering gasbag, just second buffering gasbag both ends are provided with the connecting pipe, the both sides of fixed station are provided with the air channel near the outer wall of upper end, the outer wall fixedly connected with filter screen of air channel, the bottom of air channel with the one end of connecting pipe is linked together, the flexible control lever of top outer wall fixedly connected with of fixed station, and the top outer wall fixedly connected with guide plate of flexible control lever, the top of second buffering gasbag with the below of guide plate is linked together.

8. The deformation-preventing explosion-proof people's air defense door of claim 7, characterized in that: the outer wall of the bottom end of the second buffering air bag is provided with a communicating pipe, and the other end of the communicating pipe is communicated with the inside of the first buffering air bag.

Technical Field

The invention relates to the technical field of civil defense protection equipment, in particular to an anti-deformation and anti-explosion civil defense door.

Background

The civil air defense door is a door of an entrance and an exit of civil protection engineering, and the classification of the civil air defense door is more distinct, and the civil air defense door comprises various civil air defense devices such as common single-leaf and double-leaf protective airtight doors and airtight doors, a movable door threshold single-leaf and double-leaf protective airtight doors and the like.

In CN109519098A, a people's air defense door is disclosed, which relates to the field of civil air defense protective equipment. This people's air defense door, including the rigidity door frame, the front welded fastening of rigidity door frame has articulated connecting block one, the top contact of articulated connecting block one has articulated connecting block two, the top welded fastening of articulated connecting block one has the hinge post, the surface and the activity of hinge connecting block two of hinge post cup joint, the right side and the door plant welded fastening of articulated connecting block two, the front welded fastening of door plant has two vertically and a horizontal setting of preapring for an unfavorable turn of events shape strengthening rib. This people's air defense door, when the rubber contact block on the L shape latch segment contacts with the shape strengthening rib of preapring for an unfavorable turn of events and square latch segment can lock door plant and rigidity door frame after being connected with square locking groove, cup joint the locking through square locking groove and square latch segment and can make things convenient for people's air defense door to receive to strike and promote through L shape latch segment along vertical spout when taking place deformation, can effectively make things convenient for opening of door after deformation with L shape latch segment AND gate plate separation.

However, the civil air defense door still can deform under severe impact, so that the impact resistance effect is influenced, the generated cracks are easy to pass through toxic gas, and potential safety hazards still exist for people taking refuge.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an anti-deformation and anti-explosion people's air defense door, which solves the problems that the people's air defense door still can deform under severe impact, the impact resistance effect is influenced, and the generated cracks are easy to pass through toxic gas and still have potential safety hazards to people taking refuge.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: an anti-deformation explosion-proof people's air defense door comprises a wall body, a mounting plate, a first connecting plate, a second connecting plate, a protection plate and a control plate, wherein the second connecting plate is fixedly connected to the outer wall at the left end of the mounting plate, the first connecting plate is fixedly connected to the outer wall at the right end of the mounting plate, a mounting groove is formed in one side of the wall body close to the top end, a control motor is fixedly connected to the inner wall of the mounting groove, an output shaft of the control motor is provided with a sliding groove through a shaft coupler, the protection plate is slidably connected with the mounting plate through the sliding groove, a buffer mechanism is arranged inside the mounting plate, a protection mechanism is arranged on the outer wall at one side of the protection plate, the control plate is fixedly connected to one end of the wall body close to the first connecting plate, an electric telescopic rod is arranged on the outer wall at one side of the control plate, and a curved surface movable plate is fixedly connected to one end of a piston rod of the electric telescopic rod, the fixed slot has been seted up to one side outer wall of curved surface fly leaf, just the outer wall that the curved surface fly leaf is close to the fixed slot sets up the seal groove of symmetric distribution, buffer gear can set up the multilayer, can slow down the explosion and play the buffering guard action to this people's air defense door, also can slow down the propagation of noise, protection mechanism can form the recoil air current and slow down the impact to people's air defense door.

Preferably, the outer wall of the other side of the wall body is fixedly connected with fixing plates which are distributed symmetrically, a control rod is arranged on the inner wall of each fixing plate, and one end of each control rod is fixedly connected with a supporting plate.

Preferably, the buffer mechanism comprises a reinforcing plate, a first buffer airbag, a buffer spring and a sliding plate, the reinforcing plate is fixedly connected to the outer wall of the mounting plate, one end of the buffer spring is fixedly connected to the inner wall of one side of the mounting plate, the other end of the buffer spring is fixedly connected to the sliding plate, the sliding plate is further provided with the first buffer airbag for buffering, and damage to the sliding plate due to excessive impact is prevented.

Preferably, one side inner wall fixedly connected with limiting plate of mounting panel, just the intake pipe that the equidistance distributes is seted up to one side outer wall of limiting plate, the one end of intake pipe is provided with first breather pipe, the inside of semicircle board is provided with the chamber of ventilating, just ventilate the chamber with first breather pipe is linked together.

Preferably, the inside fixedly connected with driving motor of semicircle board, just driving motor's one end fixedly connected with dead lever, the dead lever with fixed slot looks adaptation on the curved surface fly leaf, still seted up on the semicircle board with dead lever symmetric distribution, just bottom inner wall fixedly connected with connecting spring, connecting spring's one end fixedly connected with rectangular channel, the rectangular channel with inner wall sliding connection, the bottom with still be provided with the part gas in the first buffering gasbag of second breather pipe that is used for the intercommunication between the chamber of ventilating and can enter into the second buffering gasbag through communicating pipe and discharge, another part gas in the first buffering gasbag can enter into the chamber of ventilating through the intake pipe, and the rethread second breather pipe enters into.

Preferably, the protection machanism includes the fixed station, the bottom fixed connection of fixed station is in the bottom inner wall of guard plate, the both ends outer wall of fixed station is the arcwall face, just the fixed station is close to the outer wall fixedly connected with stopper of bottom, fixedly connected with bracing piece between the fixed station, the top swivelling joint of bracing piece has the rotor plate of symmetric distribution, the bottom outer wall fixedly connected with welding plate of rotor plate, the bottom inner wall fixedly connected with of guard plate connects the platform, just connect the platform with fixedly connected with protection spring between the welding plate, the rotor plate can take place to rotate under the effect of the impulsive force, can turn into the elastic potential energy of protection spring with the potential energy of part impact air current.

Preferably, the inside of fixed station is provided with second buffering gasbag, just second buffering gasbag both ends are provided with the connecting pipe, the both sides of fixed station are close to the outer wall of upper end and are provided with the air duct, the outer wall fixedly connected with filter screen of air duct, the bottom of air duct with the one end of connecting pipe is linked together, the top outer wall fixedly connected with flexible control lever of fixed station, and the top outer wall fixedly connected with guide plate of flexible control lever, the top of second buffering gasbag with the below of guide plate is linked together, and the cambered surface on fixed station surface plays the guide effect to the air current, can produce the offset with the impact air current in the opposite direction, has reduced the intensity of impact air current.

Preferably, a communicating pipe is arranged on the outer wall of the bottom end of the second buffering air bag, the other end of the communicating pipe is communicated with the inside of the first buffering air bag, and partial air flow can enter the second buffering air bag through a vent groove.

(III) advantageous effects

(1) The deformation-preventing explosion-proof civil air defense door has the advantages that the deformation-preventing explosion-proof civil air defense door plays a role in guiding airflow, can guide partial airflow to the opposite direction to generate opposite impact with impact airflow, reduces the strength of the impact airflow, can reduce the impact force of the impact airflow on the civil air defense door, prevents the civil air defense door from being deformed due to overlarge impact force, and improves the impact resistance and deformation resistance of the civil air defense door.

(2) According to the deformation-preventing explosion-proof civil air defense door, external toxic gas can be prevented from entering a wall body through a gap, strong shock waves are prevented from passing through a gap between the semicircular plate and the curved movable plate, and safety is enhanced.

(3) The deformation-preventing explosion-proof civil air defense door disclosed by the invention has the advantages that the impact resistance to explosion is enhanced, the noise can be reduced, and the influence on the entering and exiting of personnel due to the accumulation of sundries can be prevented.

Drawings

FIG. 1 is a perspective view of an anti-deformation and anti-explosion people's air defense door structure of the invention;

FIG. 2 is a side view of the deformation-preventing explosion-proof people's air defense door of the invention;

FIG. 3 is a perspective view of the mounting plate of the present invention;

FIG. 4 is a structural cross-sectional view of a mounting plate of the present invention;

FIG. 5 is an internal structural view of a mounting plate of the present invention;

FIG. 6 is a partial cross-sectional view of the present invention at the location of the semicircular plate;

FIG. 7 is a cross-sectional view of a fender according to the present invention;

FIG. 8 is an enlarged view of the structure of the present invention at A;

FIG. 9 is an enlarged view of the structure of the present invention at B.

Wherein, the wall body-1, the mounting plate-2, the chute-21, the reinforcing plate-22, the first buffer air bag-23, the buffer spring-24, the sliding plate-25, the limiting plate-26, the air inlet pipe-27, the first vent pipe-28, the first connecting plate-3, the second connecting plate-4, the protecting plate-5, the communicating pipe-51, the fixed platform-52, the vent groove-521, the telescopic control rod-522, the guide plate-523, the second buffer air bag-524, the connecting pipe-525, the supporting rod-53, the connecting platform-54, the limiting block-55, the protecting spring-56, the rotating plate-57, the welding plate-58, the control plate-6, the semicircular plate-7, the rectangular groove-72, the connecting spring-73, the reinforcing plate-22, the first buffer air bag-23, the buffer spring-24, the sliding plate-25, the limiting pipe-51, the second buffer air bag-52, the connecting pipe-525, the connecting plate-53, the connecting platform-54, the limiting block-55, the protecting spring-56, the rotating plate-57, the rotating plate-6, the connecting plate-7, the rectangular groove-72, the rectangular groove, the rectangular, A fixed rod-74, a driving motor-75, a second vent pipe-76, a vent cavity-77, a control motor-8, a fixed plate-9, a control rod-91 and a resisting plate-92.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1-9, an embodiment of the invention provides an anti-deformation and anti-explosion people air-defense door, which comprises a wall body 1, a mounting plate 2, a first connecting plate 3, a second connecting plate 4, a protection plate 5 and a control plate 6, wherein the second connecting plate 4 is fixedly connected to the outer wall of the left end of the mounting plate 2, the first connecting plate 3 is fixedly connected to the outer wall of the right end of the mounting plate 2, a mounting groove is formed in one side of the wall body 1 close to the top end, a control motor 8 is fixedly connected to the inner wall of the mounting groove, a sliding groove 21 is formed in an output shaft of the control motor 8 through the inner wall of the coupler mounting plate 2, the protection plate 5 is slidably connected with the mounting plate 2 through the sliding groove 21, a buffer mechanism is arranged inside the mounting plate 2, a protection mechanism is arranged on the outer wall of one side of the protection plate 5, the control plate 6 is fixedly connected to one end of the wall body 1 close to the first connecting plate 3, and an electric telescopic rod is arranged on the outer wall of one side of the control plate 6, and the one end fixedly connected with curved surface fly leaf of electric telescopic handle piston rod, the fixed slot has been seted up to one side outer wall of curved surface fly leaf, and the outer wall that the curved surface fly leaf is close to the fixed slot sets up the seal groove of symmetric distribution, and buffer gear can set up the multilayer, can slow down the explosion and play the buffering guard action to this people's air defense door, also can slow down the propagation of noise, and protection gear can form the recoil air current and slow down the impact to people's air defense door.

In the invention, the outer wall of the other side of the wall body 1 is fixedly connected with the fixing plates 9 which are distributed at a symmetrical distance, the inner wall of the fixing plate 9 is provided with a control rod 91, and one end of the control rod 91 is fixedly connected with a resisting plate 92.

In the invention, the buffer mechanism comprises a reinforcing plate 22, a first buffer air bag 23, a buffer spring 24 and a sliding plate 25, wherein the reinforcing plate 22 is fixedly connected with the outer wall of the mounting plate 2, one end of the buffer spring 24 is fixedly connected with the inner wall of one side of the mounting plate 2, the other end of the buffer spring 24 is fixedly connected with the sliding plate 25, and the first buffer air bag 23 for buffering is also arranged between the sliding plate 25 and the mounting plate 2, so that the sliding plate 25 is prevented from being damaged by overlarge impact.

In the invention, a limiting plate 26 is fixedly connected to the inner wall of one side of the mounting plate 2, an air inlet pipe 27 is arranged on the outer wall of one side of the limiting plate 26 at equal intervals, a first air pipe 28 is arranged at one end of the air inlet pipe 27, a ventilation cavity 77 is arranged inside the semicircular plate 7, and the ventilation cavity 77 is communicated with the first air pipe 28.

In the invention, a driving motor 75 is fixedly connected inside the semicircular plate 7, a fixing rod 74 is fixedly connected to one end of the driving motor 75, the fixing rod 74 is matched with a fixing groove on the curved-surface movable plate, 71 which are symmetrically distributed by the fixing rod 74 are further arranged on the semicircular plate 7, a connecting spring 73 is fixedly connected to the inner wall of the bottom end of the 71, a rectangular groove 72 is fixedly connected to one end of the connecting spring 73, the rectangular grooves 72 are in sliding connection with the inner wall of the 71, a second vent pipe 76 for communicating is further arranged between the bottom end of the 71 and the vent cavity 77, part of gas in the first buffer airbag 23 can enter the second buffer airbag 524 through the communicating pipe 51 to be discharged, and the other part of gas in the first buffer airbag 23 can enter the vent cavity 77 through the air inlet pipe 27 and then enter the second vent pipe 76 into.

According to the invention, the protection mechanism comprises a fixed table 52, the bottom end of the fixed table 52 is fixedly connected to the inner wall of the bottom end of the protection plate 5, the outer walls of the two ends of the fixed table 52 are arc-shaped surfaces, the outer wall of the fixed table 52 close to the bottom end is fixedly connected with a limiting block 55, supporting rods 53 are fixedly connected among the fixed tables 52, the top ends of the supporting rods 53 are rotatably connected with rotating plates 57 which are symmetrically distributed, the outer wall of the bottom end of each rotating plate 57 is fixedly connected with a welding plate 58, the inner wall of the bottom end of the protection plate 5 is fixedly connected with a connecting table 54, a protection spring 56 is fixedly connected between the connecting table 54 and the welding plate 58, and the rotating plates 57 can rotate under the action of impact force, so that the potential energy of partial impact air flow can be converted into the elastic potential energy of the protection spring 56.

In the invention, a second buffer air bag 524 is arranged in the fixed table 52, connecting pipes 525 are arranged at two ends of the second buffer air bag 524, vent grooves 521 are arranged on the outer walls of two sides of the fixed table 52 close to the upper end, filter screens are fixedly connected to the outer walls of the vent grooves 521, the bottom end of each vent groove 521 is communicated with one end of each connecting pipe 525, a telescopic control rod 522 is fixedly connected to the outer wall of the top end of the fixed table 52, a guide plate 523 is fixedly connected to the outer wall of the top end of each telescopic control rod 522, the top end of the second buffer air bag 524 is communicated with the lower part of the guide plate 523, and the cambered surface of the fixed table 52 plays a role in guiding air flow, can guide partial air flow in the opposite direction and generate opposite impact with impact air flow, thereby reducing the strength of the impact air flow.

In the present invention, communication pipe 51 is provided on the outer wall of the bottom end of second cushion bladder 524, and the other end of communication pipe 51 communicates with the inside of first cushion bladder 23, so that a part of the air flow can also enter second cushion bladder 524 through vent groove 521.

The working principle is as follows: when the civil air defense door needs to be closed, the control motor 8 is started, the control motor 8 works to drive the mounting plate 2 on the control motor to rotate, the mounting plate 2 is closed, at the moment, the electric telescopic rod in the control plate 6 can be started to push the curved movable plate until the curved movable plate is attached to the semi-circular plate 7, the fixed rod 74 can enter the fixed groove under the pushing of the driving motor 75, the fixing effect on the mounting plate 2 is enhanced, the mounting plate 2 is prevented from shaking when the mounting plate 2 is impacted, the rectangular groove 72 can be bounced into the sealing groove under the action of the connecting spring 73, the sealing effect between the gaps is enhanced when the mounting plate 2 is closed, the external toxic gas can be prevented from entering the wall body 1 through the gaps, the safety is enhanced, and when the air flow passes through the gaps between the semi-circular plate 7 and the curved movable plate, the air flow can be blocked by the rectangular groove 72, the arrangement of the reinforcing plate 22 increases the fixing and supporting effect on the mounting plate 2, when the protection plate 5 is subjected to a strong shock wave, the protection plate 5 can generate a pressure on the sliding plate 25, the first buffer air bag 23 and the buffer spring 24 play a role in buffering the sliding plate 25, when the protection plate 5 is subjected to a severe shock, the first buffer air bag 23 is firstly extruded, part of gas in the first buffer air bag 23 can enter the second buffer air bag 524 through the communication pipe 51 to be discharged, the other part of gas in the first buffer air bag 23 can enter the ventilation cavity 77 through the air inlet pipe 27 and then enter the ventilation cavity 71 through the second ventilation pipe 76, the first buffer air bag 23 and the buffer spring 24 are prevented from being damaged by the large shock, then the first buffer air bag 23 performs second-round buffering on the sliding plate 25, the shock resistance effect of the civil air defense door is ensured, and the air pressure in the ventilation cavity 71 is sharply increased, the rectangular groove 72 can be tightly attached to the fixed groove, when violent impact occurs, the fixing effect on the rectangular groove 72 is improved, stronger shock waves are prevented from passing through a gap between the semi-circular plate 7 and the curved movable plate, the first buffer air bag 23 and the sliding plate 25 can prevent the sliding plate 25 from impacting the mounting plate 2, damage caused by direct impact of the protection plate 5 and the mounting plate 2 is avoided, when impact airflow impacts the protection plate 5, the rotating plate 57 can rotate under the action of impact force at the moment, the potential energy of partial impact airflow can be converted into the elastic potential energy of the protection spring 56, the impact force of the impact airflow on the protection plate 5 is reduced, meanwhile, when the airflow passes through the space between the top end of the rotating plate 57 and the fixed table 52, the cambered surface of the fixed table 52 plays a role in guiding the airflow, part of the airflow can be guided to the opposite direction and generate opposite impact with the impact airflow, the strength of the impact air flow is reduced, the impact force of the impact air flow on the civil air defense door can be reduced, the civil air defense door is prevented from being deformed due to too large impact force, the impact resistance and the deformation resistance of the civil air defense door are improved, part of the air flow can enter the second buffering air bag 524 through the vent groove 521, the impact force of the air flow on the rotating plate 57 can be reduced, meanwhile, part of the air flow can enter the lower part of the guide plate 523 through the upper part of the second buffering air bag 524 to promote the guide plate 523 to pop out so as to exhaust air, the other part of the air flow can enter the first buffering air bag 23 through the communicating pipe 51, the buffering effect of the first buffering air bag 23 is enhanced, the abutting plate 92 can play a role in reinforcing the civil air defense door by controlling the movement of the abutting plate 92 in the starting fixing plate 9, and the control mechanisms such as the control motor 8 are arranged in the wall body, so that the civil air defense door is not easy to be damaged by impact, when sundries are stacked on the outer side of the civil air defense door and are not easy to open, the mounting plate 2 can be controlled to rotate towards the inner side through the reset of the abutting plate 92, and the civil air defense door is prevented from being unopened and influencing the entering and exiting of personnel.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.