Impact-resistant civil defense security door

Abstract

This utility model belongs to the field of civil defense technology, and particularly relates to an impact-resistant civil defense security door; it includes: a door frame with at least two door panels on its outer side; a rotating assembly mounted on the door frame and connected to the door panels; and a transmission mechanism connected to the rotating assembly to provide power for opening and closing the door panels; the transmission mechanism includes: a mounting plate mounted on the left and right sides of the outer side of the door frame by bolts; a frame mounted on the mounting plate; a cylinder rotatably connected to the frame via a rotating shaft; a fixed seat mounted on the outer side of the door panels by bolts, with the fixed seat position perpendicular to the frame position; and a connecting frame mounted on the cylinder piston rod, connected to the fixed seat. This utility model provides a safer, more efficient, and automatically opening and closing impact-resistant civil defense security door.

Description

Technical Field

[0001] This utility model belongs to the field of civil defense technology, and in particular relates to an impact-resistant civil defense security door. Background Technology

[0002] In modern urban construction and national defense security systems, impact-resistant civil defense security doors serve as crucial protective facilities, playing a key role in resisting sudden threats such as blast waves, nuclear radiation, and biological and chemical attacks. They are widely used in underground civil defense projects, important military facilities, nuclear power plants, bank vaults, and other locations with extremely high security requirements. However, most existing civil defense security doors are manually operated, relying on users to manually push the door open and close it in emergencies.

[0003] From a structural perspective, traditional civil defense security doors are often designed to be heavy and sturdy to meet high-intensity protection requirements, with a single door weighing hundreds of kilograms or even several tons. While manual operation is manageable during routine maintenance and in non-emergency situations, in emergencies such as war, terrorist attacks, or natural disasters, users must manually push the heavy doors open or close them under time constraints, in complex and dangerous environments. Due to the excessive weight of the doors, the operation is not only time-consuming and laborious, but users may also become physically exhausted and unable to complete the operation in time, resulting in the security door failing to close properly and exposing the protected area to danger.

[0004] Furthermore, in emergency evacuation scenarios, large numbers of people need to quickly evacuate from dangerous areas through civil defense safety doors. Manually operated safety doors not only easily cause passageway blockages, but also, in the chaos, users may be injured due to crowding, trampling, or other accidents, making it impossible to smoothly complete the opening and closing of the doors, seriously affecting evacuation efficiency and life safety. At the same time, during manual operation, users need to be in close contact with the door, and in the event of explosions, fires, or other dangers, they also face the risk of being hit by flying debris, suffering burns from high temperatures, and other risks, further increasing the possibility of casualties. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned technical problems by providing a safer, more efficient, and automatically opening and closing impact-resistant civil defense security door.

[0006] In view of this, the present invention provides an impact-resistant civil defense security door, comprising:

[0007] A door frame, with at least two door panels on its outer side;

[0008] A rotating component is mounted on the door frame and connected to the door body;

[0009] The transmission mechanism, connected to the rotating assembly, is used to provide power to realize the opening and closing action of the door;

[0010] The transmission mechanism includes:

[0011] The mounting plates are installed on the left and right sides of the outside of the door frame using bolt connections.

[0012] The rack is mounted on the mounting plate;

[0013] The cylinder is rotatably connected to the frame via a rotating shaft;

[0014] The mounting base is installed on the outside of the door body by means of bolt connection, and the position of the mounting base is perpendicular to the position of the frame;

[0015] The connecting bracket is mounted on the cylinder piston rod and is connected to the fixed base.

[0016] In the above technical solution, the rotating component further includes:

[0017] The mounting bases are installed on the left and right ends of the outer side of the door frame by means of bolt connection, and there are multiple mounting bases;

[0018] The door hinge is rotatably mounted between multiple mounting seats on the same side;

[0019] The rotating component is mounted on the door hinge and connected to the door body by bolts.

[0020] In any of the above technical solutions, further, the door hinge is provided with a fixing component for adjusting the position of the rotating part, the fixing component including:

[0021] A clamping element is provided on the upper side of the mounting base, and the clamping element is in contact with the bottom of the rotating element;

[0022] Fasteners are fitted onto the door hinge and located at the top of the rotating parts;

[0023] Threaded holes are provided on both sides of the opening of the fastener;

[0024] A screw is inserted between two screw holes, and the screw is threaded into the screw hole.

[0025] The grooves are formed inside the fasteners, rotating parts, and abutting parts, and the grooves of the fasteners, rotating parts, and abutting parts are connected.

[0026] The sealing strip is set in the groove and is in contact with the outer surface of the door hinge.

[0027] In any of the above technical solutions, a locking mechanism is further provided on the inner side of the door, the locking mechanism including:

[0028] A lock is installed on the inside of one of the doors.

[0029] A support plate is installed inside the other door;

[0030] The drive shaft is rotatably mounted on the support plate;

[0031] The latch is mounted on the drive shaft, which drives the latch to rotate into the locking mechanism;

[0032] Gears are mounted on the drive shaft;

[0033] The bracket is installed inside the door and is located under the support plate;

[0034] The driver is mounted on the bracket.

[0035] A rack is mounted on the telescopic rod of the drive source, and the rack meshes with a gear.

[0036] In any of the above technical solutions, the transmission mechanism further includes a control module, which is electrically connected to the cylinder and the drive source. The control module can receive electrical signals and control the cylinder and the drive source to start and stop.

[0037] In any of the above technical solutions, furthermore, reinforcing ribs are provided between the frame and the mounting plate.

[0038] In any of the above technical solutions, a protective shell is further installed on the frame by bolt connection, and the protective shell surrounds the cylinder.

[0039] In any of the above technical solutions, a bottom plate is provided on both the left and right sides of the bottom of the door frame, and multiple positioning holes are provided on the bottom plate.

[0040] The beneficial effects of this utility model are:

[0041] 1. The use of cylinders and other transmission mechanisms to replace manual operation avoids close-range operation by personnel in dangerous environments, reducing the risk of injury and death, while enabling the door to open and close quickly and stably, improving emergency response efficiency;

[0042] 2. Through the cooperation of multiple mounting bases, door hinges and rotating parts, a stable rotation foundation is provided for the door body, ensuring smooth door rotation, enhancing structural reliability, and ensuring normal use under impact;

[0043] 3. The fixing components on the door hinge can flexibly adjust the position of the rotating parts and lock them firmly. At the same time, the sealing strip enhances the sealing of the door hinge, prevents the intrusion of external substances, and improves the door's protective performance and service life.

[0044] 4. The locking mechanism retracts and locks after the door is closed, effectively dispersing the impact force, preventing the door from shifting or deforming, further enhancing the overall impact resistance, and ensuring the safety of the protected area;

[0045] 5. The control module enables automated control of door opening, closing, and locking. It intelligently adjusts equipment operation according to different emergency signals, avoiding delays caused by human operation and significantly improving the timeliness and accuracy of emergency operations. Attached Figure Description

[0046] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0047] Figure 2 This is a partial three-dimensional structural schematic diagram of this utility model;

[0048] Figure 3 This is a three-dimensional structural diagram of the fixing component of this utility model;

[0049] Figure 4 This is a three-dimensional structural diagram of the locking mechanism of this utility model;

[0050] The attached diagram is labeled as follows: 1. Door frame; 2. Door body; 3. Transmission mechanism; 31. Mounting plate; 32. Frame; 33. Cylinder; 34. Rotating shaft; 35. Fixed seat; 36. Connecting frame; 4. Rotating assembly; 41. Mounting seat; 42. Door hinge; 43. Rotating component; 5. Fixed assembly; 51. Clamping component; 52. Fastener; 53. Threaded hole; 54. Screw; 55. Groove; 56. Sealing strip; 6. Locking mechanism; 61. Lock; 62. Support plate; 63. Transmission shaft; 64. Lock; 65. Gear; 66. Bracket; 67. Drive source; 68. Rack; 7. Control module; 8. Reinforcing rib; 9. Protective shell; 10. Base plate; 101. Positioning hole. Detailed Implementation

[0051] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0052] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0053] Example 1:

[0054] like Figure 1 and Figure 2 As shown, this embodiment provides an impact-resistant civil defense security door, including:

[0055] A door frame 1, with at least two door panels 2 on its outer side;

[0056] Rotating component 4 is mounted on door frame 1 and connected to door body 2;

[0057] The transmission mechanism 3 is connected to the rotating component 4 and is used to provide power to realize the opening and closing action of the door 2;

[0058] The transmission mechanism 3 includes:

[0059] Mounting plate 31 is installed on the left and right sides of the outside of door frame 1 by means of bolt connection;

[0060] The frame 32 is mounted on the mounting plate 31;

[0061] Cylinder 33 is rotatably connected to frame 32 via rotating shaft 34;

[0062] The fixing seat 35 is installed on the outside of the door body 2 by means of bolt connection, and the position of the fixing seat 35 is perpendicular to the position of the frame 32;

[0063] The connecting bracket 36 is mounted on the piston rod of the cylinder 33 and is connected to the fixed base 35.

[0064] In this technical solution, an impact-resistant civil defense safety door is constructed, comprising a door frame 1, a door body 2, a rotating component 4, and a specific transmission mechanism 3 (including a mounting plate 31, a frame 32, a cylinder 33, a fixed base 35, and a connecting frame 36), replacing the traditional manual push-to-open and close mode. Powered by the cylinder 33 and coordinated with the transmission components, the door body 2 automatically rotates around the door frame 1 to open and close, avoiding the risks of manual operation and improving the efficiency and safety of door body 2 in emergency situations. Simultaneously, it ensures the impact resistance of the door body 2, making it suitable for civil defense projects and other scenarios with high safety requirements.

[0065] Working principle: The door frame 1 serves as the basic support, and the outer door body 2 is used for protection. The rotating assembly 4 allows the door body 2 to rotate around the door frame 1. The mounting plate 31 of the transmission mechanism 3 is fixed to both sides of the outside of the door frame 1 by bolts. The frame 32 is mounted on the mounting plate 31. The cylinder 33 is rotatably connected to the frame 32 by the rotating shaft 34. The fixed seat 35 on the outside of the door body 2 (distributed perpendicularly to the frame 32) is connected to the piston rod of the cylinder 33 through the connecting bracket 36.

[0066] When the door 2 needs to be opened or closed, the piston rod of cylinder 33 extends or retracts, driving the connecting frame 36 to move. The connecting frame 36 then pulls or pushes the fixed seat 35 outside the door 2. Since the door 2 is connected to the rotating assembly 4, the force on the fixed seat 35 causes the door 2 to rotate around the door frame 1, realizing the opening or closing action. The rotating shaft 34 connecting the frame 32 and the cylinder 33 allows the cylinder 33 to move adaptively around the rotating shaft 34 during the extension and retraction of the piston rod of cylinder 33 and the rotation of the door 2, compensating for the positional changes caused by the rotation of the door 2, ensuring smooth transmission, and allowing the door 2 to stably complete the opening and closing, achieving automatic, efficient and safe opening and closing, and resisting external impacts.

[0067] like Figures 1-3 As shown, in this embodiment, the optimized rotating component 4 includes:

[0068] Mounting base 41 is installed on the left and right ends of the outer side of the door frame 1 by means of bolt connection, and there are multiple mounting bases 41;

[0069] The door hinge 42 is rotatably disposed among multiple mounting seats 41 on the same side;

[0070] The rotating component 43 is mounted on the door hinge 42 and is connected to the door body 2 by bolts.

[0071] In this technical solution, the rotating component 4 provides a stable and reliable rotating support structure for the opening and closing of the door body 2 of the impact-resistant civil defense security door. By setting the mounting base 41, the door hinge 42, and the rotating component 43, the door body 2 can rotate smoothly around the door hinge 42 to realize the opening and closing action of the door body 2. At the same time, it ensures that the rotating connection part has sufficient strength and stability when the door body 2 resists external impact. Together with the overall door body 2 structure, it improves the impact resistance and reliability of the civil defense security door, and solves the problems of operation difficulties and structural damage that may be caused by the poor rotating structure when manually pushing the door body 2 in the traditional way.

[0072] Working principle: The mounting base 41 is fixed to the left and right ends of the outer side of the door frame 1 by bolts, serving as a basic support. Multiple mounting bases 41 provide mounting points for the door hinge 42. The door hinge 42 is rotatably mounted among multiple mounting bases 41 on the same side, and can rotate around its own axis, becoming the central axis of rotation of the door body 2. The rotating component 43 is mounted on the door hinge 42 and is also connected to the door body 2 by bolts, thus linking the door body 2 and the door hinge 42 together.

[0073] When the door 2 needs to be opened or closed, the transmission mechanism 3 provides power, causing the door 2 to bear force. Since the rotating component 43 connects the door 2 and the door hinge 42, the door 2 will drive the rotating component 43 to rotate around the door hinge 42. The door hinge 42 rotates with the support of the mounting base 41, thereby realizing the rotational opening and closing action of the door 2 around the door frame 1. In impact-resistant scenarios, the impact force borne by the door 2 can be transmitted to the door hinge 42 through the rotating component 43, and then distributed to the door frame 1 through the mounting base 41. The structural strength of each component ensures the stability of the rotating connection part and maintains the protective function of the door 2.

[0074] like Figures 1-3 As shown, in this embodiment, the optimized door hinge 42 is provided with a fixing component 5 for adjusting the position of the rotating member 43. The fixing component 5 includes:

[0075] The clamping member 51 is disposed on the upper side of the mounting base 41, and the clamping member 51 is in contact with the bottom of the rotating member 43;

[0076] Fastener 52 is fitted onto door hinge 42 and located on top of rotating part 43;

[0077] Threaded holes 53 are provided on both sides of the opening of fastener 52;

[0078] Screw 54 is inserted between two screw holes 54, and screw 54 is threaded into threaded hole 53;

[0079] The groove 55 is formed inside the fastener 52, the rotating member 43 and the abutting member 51, and the grooves 55 of the fastener 52, the rotating member 43 and the abutting member 51 are connected.

[0080] A sealing strip 56 is provided in the groove 55 and is in contact with the outer surface of the door hinge 42.

[0081] In this technical solution, an adjustable and stable fixing structure is provided for the connection between the door hinge 42 and the rotating component 43, while enhancing the sealing and impact resistance of the door hinge 42. Through components such as the clamping component 51, fastener 52, and screw 54, the position of the rotating component 43 on the door hinge 42 can be flexibly adjusted and reliably fixed, adapting to the installation and maintenance needs of the door body 2. The groove 55 and sealing strip 56 are used to fill the gaps between the door hinge 42 and related components, improving the overall sealing of the door body 2, reducing the intrusion of external impacts, dust, and moisture, ensuring the performance and service life of the civil defense security door, and solving the problems of inconvenient fixing of the rotating component 43 and easy air and liquid leakage at the door hinge 42 affecting protection.

[0082] Working principle: The clamping member 51 is installed on the upper side of the mounting base 41 and contacts the bottom of the rotating member 43, serving to support and initially limit the rotation of the rotating member 43 from below. The fastener 52 is fitted onto the door hinge 42 and located on the top of the rotating member 43. Threaded holes 53 are opened on both sides of its opening. The screw 54 passes through the threaded holes 53 and is threaded into them. The tightness of the fastener 52 opening can be adjusted by turning the screw 54, thereby limiting the position of the rotating member 43. The fastener 52, the rotating member 43, and the clamping member 51 all have grooves 55 inside, which are interconnected. The sealing strip 56 is placed in the groove 55 and fits against the outer surface of the door hinge 42.

[0083] When it is necessary to adjust the position of the rotating part 43 on the door hinge 42, first loosen the screw 54 to enlarge the opening of the fastener 52, allowing the fastener 52 and the rotating part 43 to move. At the same time, loosen the bolts on the mounting base 41 to make the positions of the mounting base 41 and the abutment 51 adjustable. After adjusting to the appropriate position, tighten the screw 54. Utilizing the threaded engagement between the screw 54 and the threaded hole 53, the opening of the fastener 52 is reduced, allowing the fastener 52 to grip the door hinge 42. Together with the bottom abutment 51, the rotating part 43 is stably fixed in the set position of the door hinge 42, ensuring reliable connection between the rotating part 43 and the door hinge 42 when the door 2 rotates, and stable torque transmission. The sealing strip 56 in the groove 55 fits against the outer surface of the door hinge 42, filling the gaps between the fastener 52, the rotating part 43, the abutment 51, and the door hinge 42. When the door body 2 resists external impact, the sealing strip 56 can buffer part of the impact force and reduce the vibration and wear between components caused by the impact; at the same time, it can prevent external air, water vapor, dust and other external substances from entering the interior of the door body 2 through the gap at the door hinge 42, maintain the internal protective environment of the door body 2, improve the impact resistance and overall sealing performance, and ensure the long-term stable operation of the civil defense security door.

[0084] Example 2:

[0085] This embodiment provides an impact-resistant civil defense security door, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0086] like Figure 4 As shown, in this embodiment, an optimized locking mechanism 6 is provided on the inner side of the door 2. The locking mechanism 6 includes:

[0087] Lock 61 is installed on the inside of one of the door panels 2;

[0088] Support plate 62 is located on the inside of another door 2;

[0089] The drive shaft 63 is rotatably mounted on the support plate 62;

[0090] The latch 64 is mounted on the drive shaft 63, and the drive shaft 63 drives the latch 64 to rotate into the locking member 61.

[0091] Gear 65 is mounted on drive shaft 63;

[0092] The bracket 66 is located inside the door 2 and is located below the support plate 62.

[0093] The drive source 67 is mounted on the bracket 66;

[0094] Rack 68 is mounted on the telescopic rod of drive source 67, and rack 68 meshes with gear 65.

[0095] In this technical solution, a reliable locking function is added to the impact-resistant civil defense safety door, further reinforcing it after the door body 2 is closed, thereby improving its overall impact resistance. Through the coordinated operation of the components of the locking mechanism 6, the door body 2 can be stably locked when closed, preventing displacement or deformation due to impact, thus enhancing its protective performance. This solves the problem that traditional civil defense doors, which rely solely on the closing of the door body 2, are prone to failure under strong impacts, ensuring the safety of personnel and facilities in civil defense projects and other scenarios.

[0096] Working principle: Lock 61 is installed inside one door 2, support plate 62, drive shaft 63, latch 64, gear 65 are set inside another door 2, bracket 66 is installed inside the door 2 and located below support plate 62, drive source 67 (such as motor, cylinder 33, etc.) is set on bracket 66, and rack 68 on its telescopic rod meshes with gear 65.

[0097] When door 2 is closed and locking is required, drive source 67 operates, extending or retracting the telescopic rod, which moves rack 68. Because rack 68 meshes with gear 65, the movement of rack 68 drives gear 65 to rotate, which in turn drives transmission shaft 63 to rotate. The latch 64 on transmission shaft 63 rotates accordingly until it screws into the lock 61, achieving the retraction and locking of both door panels 2. After locking, latch 64 and lock 61 engage tightly, providing additional locking force to door 2. When an external impact acts on door 2, the locking mechanism 6's locking structure can disperse and withstand the impact force, limiting the displacement and deformation of door 2. Combined with the door 2's own structure, this enhances overall impact resistance, ensures stable protection, and safeguards the area protected by door 2.

[0098] like Figure 1 As shown, in this embodiment, the optimized transmission mechanism 3 further includes a control module 7. The control module 7 is electrically connected to the cylinder 33 and the drive source 67. The control module 7 can receive electrical signals and control the cylinder 33 and the drive source 67 to start and stop.

[0099] In this technical solution, a control module 7 is introduced into the impact-resistant civil defense safety door to realize intelligent and automated control of the opening, closing, and locking actions of the door body 2, thereby improving emergency response efficiency and safety. Through the precise control of the cylinder 33 and drive source 67 by the control module 7, the door body 2 can quickly and accurately complete opening, closing, and locking operations under different emergency situations, avoiding the risks and delays caused by manual operation. This solves the problems of traditional civil defense doors relying on manpower and having untimely emergency response, ensuring that the door body 2 can promptly play its protective role in the event of a sudden danger.

[0100] Working principle: The control module 7 establishes an electrical connection with the cylinder 33 and the drive source 67, and can receive electrical signals from external early warning systems (such as fire alarms, nuclear radiation monitoring), emergency command centers, or manual trigger buttons. These electrical signals include operation commands such as opening, closing, and locking of the door 2.

[0101] When the control module 7 receives an electrical signal to open the door 2, it immediately sends a start command to the cylinder 33. The extension and retraction of the piston rod of the cylinder 33 causes the door 2 to rotate around the door frame 1 and open. If a signal to close the door 2 is received, the control module 7 controls the cylinder 33 to move in the opposite direction, so that the door 2 is closed.

[0102] After the door 2 is closed, the control module 7 sends a signal to the drive source 67 according to the preset program or the received locking command. The drive source 67 starts, driving the rack 68 and gear 65 to rotate the drive shaft 63, and the latch 64 screws into the lock 61 to complete the locking. If it is necessary to release the lock, the control module 7 controls the drive source 67 in the opposite direction, causing the latch 64 to rotate out.

[0103] The control module 7 has intelligent processing capabilities and can adjust the operating parameters of cylinder 33 and drive source 67, such as the extension and retraction speed of cylinder 33 and the output power of drive source 67, according to the type of received electrical signal and the level of urgency. For example, in high-risk emergency situations, it can accelerate the closing and locking speed of door 2 to adapt to the operational needs of door 2 in different emergency scenarios, thereby achieving efficient and safe automated operation of the civil defense security door.

[0104] Example 3:

[0105] This embodiment provides an impact-resistant civil defense security door, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0106] like Figure 1 and Figure 2 As shown, in this embodiment, an optimized reinforcement rib 8 is provided between the frame 32 and the mounting plate 31.

[0107] In this technical solution, a reinforcing rib 8 is added between the frame 32 and the mounting plate 31 to improve the overall structural strength and stability of the transmission mechanism 3 and enhance its ability to resist external impacts. Through the reinforcing effect of the reinforcing rib 8, the stress generated during the opening and closing process of the door 2 and during impacts is effectively dispersed and transmitted, preventing deformation and loosening at the connection between the frame 32 and the mounting plate 31, ensuring the normal operation of the transmission mechanism 3, and thus ensuring that the door 2 reliably achieves its opening, closing, and protective functions, improving the reliability and service life of the civil defense security door under complex working conditions.

[0108] Working Principle: The reinforcing rib 8 is positioned between the frame 32 and the mounting plate 31, with both ends firmly connected to the frame 32 and the mounting plate 31 respectively, and can be fixed by welding, bolting, or other methods. This connection method forms a stable triangular or polygonal mechanical structure with the reinforcing rib 8, frame 32, and mounting plate 31. In mechanical principles, triangles have stability, and polygonal structures can also enhance overall rigidity through the mutual support of multiple sides and corners. When the door 2 opens and closes, the power generated by the cylinder 33 is transmitted to the frame 32 through components such as the connecting frame 36 and the fixing seat 35, and the frame 32 will be subjected to a large force. When an external impact acts on the door 2, the impact force is also transmitted to the frame 32 and the mounting plate 31 through the transmission mechanism 3. At this time, the reinforcing rib 8 plays a role in distributing the force borne by the frame 32 to the mounting plate 31 and the surrounding structure. For example, impact forces cause stress in a certain direction in the frame 32. The reinforcing rib 8 decomposes this stress into components in multiple directions, which are then transmitted to the mounting plate 31 and the door frame 1 through its own structure. This prevents stress concentration at the connection between the frame 32 and the mounting plate 31, thus preventing local deformation and breakage. The presence of the reinforcing rib 8 increases the moment of inertia and section modulus at the connection between the frame 32 and the mounting plate 31, enhancing the structure's resistance to bending and deformation. When the door 2 is frequently opened and closed or subjected to strong impacts, the reinforcing rib 8 effectively limits the relative displacement between the frame 32 and the mounting plate 31, ensuring the stability of the positions of the components of the transmission mechanism 3, maintaining the normal operation of components such as the cylinder 33 and the connecting frame 36, ensuring that the door 2 can open and close smoothly, and effectively resisting external impacts after closing, thus ensuring the stable performance of the civil defense safety door.

[0109] like Figure 1 As shown, in this embodiment, the optimized design features a protective shell 9 mounted on the frame 32 via bolts, and the protective shell 9 surrounds the cylinder 33.

[0110] In this technical solution, the protective shell 9 surrounding the cylinder 33 is installed on the frame 32 primarily to protect this critical power component, thereby improving the reliability and service life of the impact-resistant civil defense safety door. The protective shell 9 isolates the cylinder 33 from external adverse factors, preventing physical damage, dust intrusion, and moisture corrosion during use, ensuring stable operation of the cylinder 33, and thus guaranteeing that the door 2 can open and close normally, maintaining the protective function of the civil defense safety door.

[0111] Working principle: The protective shell 9 is fixed to the frame 32 by bolts. This connection method facilitates installation and disassembly, and makes it convenient to maintain and repair the internal cylinder 33. The protective shell 9 is made of sturdy and durable materials, such as high-strength steel plates or corrosion-resistant engineering plastics. The overall structure is enclosed, completely enclosing the cylinder 33 to form a relatively closed protective space.

[0112] In daily use and emergencies, air-raid shelters may be subjected to impacts from external objects, such as collisions or flying debris from explosions. The protective shell 9, with its high strength, can withstand these impacts, dispersing or blocking the force and preventing direct physical damage to the cylinder 33. For example, when flying debris hits the protective shell 9, its robust outer shell can transfer the impact force to the frame 32 via bolts, and its structural toughness provides cushioning, preventing cylinder 33 from cracking or piston rod deformation, thus ensuring the normal operating performance of the cylinder 33. The protective shell 9 effectively prevents dust, moisture, and corrosive gases from entering, protecting the cylinder 33 from environmental factors.

[0113] like Figure 1 As shown, in this embodiment, the optimized bottom of the door frame 1 is provided with a base plate 10 on both the left and right sides, and the base plate 10 is provided with a plurality of positioning holes 101.

[0114] In this technical solution, a base plate 10 with positioning holes 101 is provided on the left and right sides of the bottom of the door frame 1 to enhance the stability and accuracy of the installation of the impact-resistant civil defense security door, ensuring that the door body 2 is stable and reliable when resisting external impacts. Through the positioning holes 101 and the cooperation with the fixing components, a firm connection is achieved between the door frame 1 and the installation foundation, avoiding problems such as shaking and displacement of the door body 2 during use due to unstable installation, and ensuring that the civil defense security door can stably perform its protective function for a long time.

[0115] Working principle: The base plate 10 is set on the left and right sides of the bottom of the door frame 1, serving as a connecting transition component between the door frame 1 and the installation foundation. Multiple positioning holes 101 are formed on the base plate 10. The position and size of these positioning holes 101 are precisely designed to fit expansion bolts, anchor bolts, and other fixing components. When installing the civil defense security door, the door frame 1 is connected to the ground, wall, or other installation foundations via the base plate 10.

[0116] Before installation, mark the positions of the positioning holes 101 on the installation foundation according to the design requirements, and then drill the holes. During installation, align the bottom plate 10 of the door frame 1 with the drilled holes on the installation foundation, insert the expansion bolts or anchor bolts through the positioning holes 101, and then tighten the nuts or utilize the expansion characteristics of the bolts themselves to ensure a tight connection between the bolts and the installation foundation. The cooperation of multiple positioning holes 101 and bolts allows for positioning and fixing of the door frame 1 from multiple directions, ensuring the accuracy of the installation position of the door frame 1, avoiding offset or tilting, and ensuring that the door 2 can open and close normally.

[0117] When the door 2 is subjected to external impact, the impact force is transmitted through the door 2 to the door frame 1, and then through the base plate 10 to the mounting foundation. The fixing structure composed of multiple positioning holes 101 and bolts can evenly distribute the impact force to different parts of the mounting foundation, preventing excessive local stress that could cause the door frame 1 to loosen or the mounting foundation to be damaged. At the same time, the base plate 10 increases the contact area between the door frame 1 and the mounting foundation, reduces the stress per unit area, and further enhances the stability of the door frame 1. This stable installation method enables the civil defense security door to maintain the integrity of its overall structure and continue to provide protection when subjected to impacts such as blast shock waves and heavy object impacts.

[0118] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An impact-resistant civil defense safety door, characterized in that, include: A door frame (1) with at least two door panels (2) on its outer side; A rotating component (4) is disposed on the door frame (1) and connected to the door body (2); The transmission mechanism (3) is connected to the rotating assembly (4) and is used to provide power to realize the opening and closing action of the door (2); The transmission mechanism (3) includes: Mounting plates (31) are installed on the left and right sides of the outside of the door frame (1) by means of bolt connection; A frame (32) is mounted on the mounting plate (31); The cylinder (33) is rotatably connected to the frame (32) via a rotating shaft (34); The fixing seat (35) is installed on the outside of the door body (2) by means of bolt connection, and the position of the fixing seat (35) is perpendicular to the position of the frame (32); A connecting bracket (36) is disposed on the piston rod of the cylinder (33), and the connecting bracket (36) is connected to the fixed seat (35).

2. The impact-resistant civil defense security door of claim 1, wherein, The rotating component (4) includes: Mounting bases (41) are installed on the left and right ends of the outer side of the door frame (1) by means of bolt connection, and there are multiple mounting bases (41); The door hinge (42) is rotatably mounted between multiple mounting seats (41) on the same side; The rotating component (43) is mounted on the door hinge (42) and connected to the door body (2) by bolts.

3. The impact-resistant civil defense security door of claim 2, wherein, The door hinge (42) is provided with a fixing component (5) for adjusting the position of the rotating part (43), the fixing component (5) including: A clamping member (51) is disposed on the upper side of the mounting base (41), and the clamping member (51) is in contact with the bottom of the rotating member (43); Fastener (52) is fitted onto the door hinge (42) and located on top of the rotating part (43); Threaded holes (53) are provided on both sides of the opening of the fastener (52); A screw (54) is inserted between two screw (54) holes, and the screw (54) is threaded into the threaded hole (53); A groove (55) is formed inside the fastener (52), the rotating member (43) and the abutting member (51), and the grooves (55) of the fastener (52), the rotating member (43) and the abutting member (51) are connected; A sealing strip (56) is disposed in the groove (55), and the sealing strip (56) is in contact with the outer surface of the door hinge (42).

4. The impact-resistant civil defense security door of claim 1, wherein, The door body (2) is provided with a locking mechanism (6) on its inner side, the locking mechanism (6) including: A lock (61) is installed on the inside of one of the doors (2); A support plate (62) is disposed on the inside of another door (2); The drive shaft (63) is rotatably mounted on the support plate (62); The latch (64) is mounted on the drive shaft (63), and the drive shaft (63) drives the latch (64) to rotate into the lock (61); Gear (65) is mounted on the drive shaft (63); A bracket (66) is provided inside the door body (2), and the bracket (66) is located below the support plate (62); A drive source (67) is mounted on the bracket (66); A rack (68) is mounted on the telescopic rod of the drive source (67), and the rack (68) meshes with a gear (65).

5. The impact-resistant civil defense security door of claim 4, wherein, The transmission mechanism (3) also includes a control module (7), which is electrically connected to the cylinder (33) and the drive source (67). The control module (7) can receive electrical signals and control the cylinder (33) and the drive source (67) to start and stop.

6. The impact-resistant civil defense security door of claim 1, wherein, A reinforcing rib (8) is provided between the frame (32) and the mounting plate (31).

7. The impact-resistant civil defense security door of claim 1, wherein, A protective shell (9) is installed on the frame (32) by means of bolt connection, and the protective shell (9) surrounds the cylinder (33).

8. The impact-resistant civil defense security door of claim 1, wherein, The bottom left and right sides of the door frame (1) are provided with a base plate (10), and the base plate (10) is provided with multiple positioning holes (101).

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