Multifunctional safe and theftproof door with variable storage space

The multi-functional storage space variable security door, designed with inner and outer door frames and drive components, solves the problems of poor adaptability and security hazards of traditional security doors, and achieves the effect of adapting to different door opening sizes and security observation.

CN117345089BActive Publication Date: 2026-05-19张亚男
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
张亚男
Filing Date
2023-10-30
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional security doors cannot adapt to walls of different lengths and sizes, have poor adaptability, and pose security risks, such as not being able to know the situation at the door in time when the peephole is blocked.

Method used

A multifunctional security door with variable storage space was designed. It adopts an inner and outer door frame structure. The inner door frame is slidably connected along the first direction, and the lower shelf can be extended and retracted. Combined with a drive component, the extension and retraction of the door frame and the shelf are realized. An observation component is provided to ensure security.

Benefits of technology

It enhances the adaptability of security doors, provides a double-layer protection structure, can adapt to different sizes of door openings and walls, and allows observation of the outside situation through peepholes and LED screens, thus improving security and adaptability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a multifunctional safe security door with variable storage space, belonging to the technical field of security doors, comprising a fixed frame, an outer door frame, an inner door frame and an observation assembly; the fixed frame is fixed on the door hole wall of a room; the lower end of the fixed frame is provided with a lower storage plate, which has the freedom of stretching and contracting in the vertical direction; the outer door frame is arranged on the outer side of the fixed frame away from the room, and the outer door frame is provided with a glass door; the inner door frame is arranged on the inner side of the fixed frame facing the room and is connected with the fixed frame in sliding mode along a first direction; the lower end of the inner door frame is provided with an upper storage plate arranged in extension along a second direction; the inner door frame is provided with a security door; the observation assembly comprises a peephole arranged on the security door and facing the glass door, and an LED screen fixed on the glass door, which is arranged on the inner side of the glass door facing the room. The multifunctional safe security door with variable storage space provided by the application can adjust the storage space, can adapt to the size of different door hole walls, and has better safety.
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Description

Technical Field

[0001] This invention belongs to the field of security door technology, and more specifically, relates to a multifunctional security door with variable storage space. Background Technology

[0002] The full name of a security door is "anti-theft security door," which combines the functions of theft prevention and security. When users choose a security door, they often leave some space between the door panel and the door frame. This space can be used to store household items, and the size of this space is related to the reserved width of the wall opening.

[0003] In existing technologies, the inner and outer dimensions of traditional door frames are often fixed. Therefore, traditional security doors often cannot adapt to different dimensions of the wall along the inside and outside of the room, and thus need to be customized, resulting in poor adaptability. In addition, it is inconvenient to observe the situation at the door after installing a security door. Existing technologies often install peephole devices, but when the peephole is blocked, the user cannot know the situation at the door in time, which poses a security hazard. Summary of the Invention

[0004] The purpose of this invention is to provide a multifunctional security door with variable storage space, which aims to solve the technical problems of traditional security doors being unable to adapt to door openings of different lengths and wall sizes, having poor adaptability, and still having security risks.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a multifunctional security door with variable storage space, comprising:

[0006] A fixed frame is fixed to the wall of the room's doorway; the direction of the room's interior and exterior is defined as the first direction, and the horizontal direction perpendicular to the first direction is defined as the second direction; the lower end of the fixed frame is provided with a lower shelf extending along the second direction, and the lower shelf has the freedom to extend and retract vertically.

[0007] An outer door frame is located on the outside of the fixed frame, away from the room, and a glass door is provided inside the outer door frame;

[0008] An inner door frame is located on the inner side of the fixed frame facing the room and is slidably connected to the fixed frame along the first direction; the lower end of the inner door frame is provided with an upper shelf extending along the second direction; a security door is provided inside the inner door frame; and

[0009] The observation components include a peephole mounted on the security door and facing the glass door, and an LED screen fixed on the glass door, the LED screen being located on the side of the glass door facing the inside of the room;

[0010] Specifically, after the lower shelf moves downward to a height lower than the upper shelf, the inner door frame slides and retracts into the fixed frame; after the inner door frame slides out of the fixed frame, the lower shelf moves upward to be flush with the top surface of the upper shelf.

[0011] In one possible implementation, the multifunctional storage space variable security door further includes a first drive assembly, the first drive assembly comprising:

[0012] A support and fixing plate is provided on the side of the fixing frame facing the doorway wall;

[0013] The first drive motor is mounted on the support fixing plate;

[0014] The first rotating lead screw has one end connected to the power output end of the first drive motor, and the other end extends along the first direction toward the inner door frame.

[0015] A movable flange is located on the side of the inner door frame facing the door opening wall and is screwed to the first rotating screw; and

[0016] A support slide rail is provided below the first drive motor and extends along the first direction; the support slide rail includes a guide post provided on the fixed frame and a guide cylinder provided on the inner door frame, and the guide post slides in the guide cylinder when the inner door frame extends or retracts towards or away from the fixed frame;

[0017] When the first drive motor drives the first rotating screw to rotate, the moving flange causes the inner door frame to extend and retract along the axial direction of the first rotating screw, and the guide column slides and extends and retracts within the guide cylinder.

[0018] In one possible implementation, the multifunctional storage space variable security door further includes a second drive assembly, the second drive assembly comprising:

[0019] The second drive motor is located on the lower shelf.

[0020] The second rotating lead screw has one end connected to the power output end of the second drive motor, and the other end extends downwards; and

[0021] A fixed flange is fixed to the bottom wall below the lower shelf and screwed to the lower end of the second rotating screw.

[0022] When the second drive motor drives the second rotating screw to rotate within the fixed flange, the second drive motor moves up and down with the lower shelf to create a degree of freedom for the lower shelf to move up and down.

[0023] In some embodiments, the fixed frame is provided with multiple storage boxes on the side away from the doorway wall, and the multiple storage boxes are arranged vertically at intervals; each of the storage boxes is provided with a power terminal, which is used to connect to a refrigeration device, a heating device or an oxygen supply device.

[0024] For example, the lower end of the fixed frame is also provided with an electric mosquito coil component, which is located in one of the storage boxes, and the corresponding storage box has an opening on the side facing the outside; the top of the inner door frame is also provided with a mosquito-killing lamp.

[0025] For example, the top of the fixed frame is provided with a cross-flow ventilation air curtain machine; the bottom of the fixed frame and the bottom of the outer door frame are both provided with ventilation thresholds.

[0026] In some embodiments, the inner door frame is provided with a light strip and a reflector on the side facing away from the doorway wall, and the light strip and the reflector are spaced apart along the first direction.

[0027] In one possible implementation, the multifunctional security door with variable storage space further includes an electrically controlled opening assembly, which includes:

[0028] An electric door opener is located at the top of the fixed frame;

[0029] An electric push-pull rod, with its active end connected to the power output end of the electric door opener and its driven end connected to the top of the glass door; and

[0030] A face monitoring device is installed on the outdoor side of the fixed frame and is electrically connected to the electric door opener; the face monitoring device is equipped with a recognition component for recognizing faces;

[0031] When the face monitoring device recognizes the user's face through the recognition component, the electric door opener controls the electric push-pull rod to open the glass door.

[0032] In some embodiments, a smart door lock is provided between the glass door and the outer door frame, and an anti-pry door lock decorative panel is provided on the side of the outer door frame facing the glass door, and the anti-pry door lock decorative panel is provided with anti-pry elongated holes extending vertically.

[0033] In one possible implementation, the glass door is provided with a roller shutter door parallel to the outer side along the first direction.

[0034] Compared with the prior art, the solution shown in this application provides a double-layer protective structure of a glass door and a security door by setting an inner door frame and an outer door frame. The inner door frame extends and retracts within the fixed frame along a first direction, and the lower shelf moves up and down to accommodate the extension and retraction of the inner door frame. This changes the distance between the security door and the glass door and allows for adjustment of the storage space enclosed by the inner door frame and the fixed frame. It can also adapt to different door opening wall sizes, improving the adaptability of the double-layer protective structure. Furthermore, this application includes an observation component for observing the outdoor situation through a peephole device combined with an LED screen to ensure user safety. When the LED screen is attached to the inside of the glass door, it not only allows observation of the external situation using the glass's properties but also avoids the risk of the LED screen being exposed to the outside. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of a multifunctional security door with variable storage space provided in an embodiment of the present invention when the inner door frame is extended;

[0037] Figure 2 This is a schematic diagram of the structure of a multifunctional security door with variable storage space provided in an embodiment of the present invention when the inner door frame is retracted;

[0038] Figure 3 For the appendix Figure 1 Enlarged structural diagram at point A in the middle;

[0039] Figure 4 This is a schematic diagram of the structure of the lower shelf and the support stool when unfolded, as provided in an embodiment of the present invention.

[0040] Figure 5 This is a schematic diagram of the internal air circulation structure of a multifunctional security door with variable storage space used in an embodiment of the present invention;

[0041] Figure 6 This is a schematic diagram of the structure of the anti-pry door lock decorative panel provided in this embodiment of the invention.

[0042] In the picture:

[0043] 1. Fixed frame; 11. Storage box; 111. Opening; 12. Electric mosquito coil assembly; 13. Cross-flow ventilation air curtain; 14. Anti-pry door lock decorative panel; 141. Anti-pry elongated hole;

[0044] 2. Outer door frame; 21. Glass door;

[0045] 3. Inner door frame; 31. Security door; 32. Mosquito killer lamp; 33. LED strip light; 34. Reflector;

[0046] 4. Ventilation threshold;

[0047] 5. First drive assembly; 51. First drive motor; 52. First rotating lead screw; 53. Moving flange; 54. Support slide rail; 541. Guide column; 542. Guide cylinder; 55. Support fixing plate;

[0048] 6. Second drive assembly; 61. Second drive motor; 62. Second rotating lead screw; 63. Fixed flange;

[0049] 7. Upper shelf;

[0050] 8. Lower shelf; 81. Mounting holes; 82. Supporting bench; 83. Telescopic support column;

[0051] 9. Electrically controlled door opening assembly; 91. Electric door opener; 92. Electric push-pull rod; 93. Facial recognition monitoring equipment;

[0052] 10. Observation components; 101. Cat's eye; 102. LED screen. Detailed Implementation

[0053] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0054] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on that other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0055] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a number" means two or more, unless otherwise explicitly specified.

[0056] Please refer to the following: Figures 1 to 6 The present invention will now describe a multifunctional security door with variable storage space. The multifunctional security door with variable storage space includes a fixed frame 1, an outer door frame 2, an inner door frame 3, and an observation component 10. The fixed frame 1 is fixed to the wall of the room's doorway. The direction between the inside and outside of the room is defined as a first direction, and the horizontal direction perpendicular to the first direction is defined as a second direction. The lower end of the fixed frame 1 is provided with a lower shelf 8 extending along the second direction, and the lower shelf 8 has the freedom to extend and retract vertically. The outer door frame 2 is located on the outside of the fixed frame 1 away from the room, and a glass door 21 is provided inside the outer door frame 2. The inner door frame 3 is located on the inside of the fixed frame 1 facing the room, and extends along the first direction with the fixed frame 1. The inner door frame 3 is slidably connected; the lower end of the inner door frame 3 is provided with an upper shelf 7 extending in a second direction; the inner door frame 3 is provided with a security door 31; the observation component 10 includes a peephole 101 provided on the security door 31 and facing the glass door 21, and an LED screen 102 fixed on the glass door 21, the LED screen 102 being provided on the glass door 21 facing the inside of the room; wherein, after the lower shelf 8 moves downward to a height lower than the upper shelf 7, the inner door frame 3 slides and retracts into the fixed frame 1; after the inner door frame 3 slides out of the fixed frame 1, the lower shelf 8 moves upward to be flush with the top surface of the upper shelf 7.

[0057] For ease of understanding, this application uses the appendix. Figure 1 The direction of the middle arrow A indicates the first direction, and uses an attached arrow. Figure 1 The direction of the middle arrow B indicates the second direction.

[0058] It should be understood that the space enclosed between the glass door 21, the security door 31, the outer door frame 2, the fixed frame 1, and the inner door frame 3 can be used for storage. When the inner door frame 3 extends or retracts within the fixed frame 1, the size of this storage space changes accordingly.

[0059] In addition, the lower shelf 8 should descend before the inner door frame 3 retracts, and the upper shelf 8 should rise after the inner door frame 3 extends, to avoid interference between the lower shelf 8 and the upper shelf 7. When the inner door frame 3 retracts, the lower shelf 8 is stacked below the upper shelf 7; when the inner door frame 3 extends, the lower shelf 8 can be simultaneously adjusted to be level with the upper shelf 7; optionally, feet can be installed on both the upper shelf 7 and the lower shelf 8.

[0060] It should be noted that the specific structure of the cat eye 101 and the specific structure and working principle of the LED screen 102 are both existing technologies and will not be described in detail here.

[0061] Optionally, the peephole 101 can be designed with the principle of a periscope, which can effectively prevent outsiders from reaching through the peephole 101 to pull the handle to unlock the door. Optionally, the glass door 21 is made of tempered explosion-proof glass, which can be used in conjunction with the periscope peephole 101 to see the situation outside the door.

[0062] It should be noted that the LED screen 102 is a transparent screen, and it can display the time, date, weather conditions, memos, and information to note when going out. The double-door structure design reduces noise and improves security.

[0063] This invention provides a multifunctional security door with variable storage space. Compared with the prior art, it forms a double-layer protective structure of glass door 21 and security door 31 by setting an inner door frame 3 and an outer door frame 2. The inner door frame 3 extends and retracts within the fixed frame 1 along a first direction, and the lower shelf 8 moves up and down to adapt to the extension and retraction of the inner door frame 3. This allows for changes in the distance between the security door 31 and the glass door 21, and adjustment of the storage space enclosed by the inner door frame 3 and the fixed frame 1. It can also adapt to the size of different door openings and walls, improving the adaptability of the double-layer protective structure. Furthermore, this application also includes an observation component 10 for observing the outdoor situation through a peephole 101 device combined with an LED screen 102 to ensure user safety. When the LED screen 102 is attached to the inside of the glass door 21, it not only allows observation of the external situation using the properties of the glass, but also avoids the risk of the LED screen 102 being exposed to the outside.

[0064] As a specific embodiment of the extension and retraction of the inner door frame 3 within the fixed frame 1, a telescopic cylinder or a telescopic hydraulic cylinder can be installed on the fixed frame 1, and the extension and retraction ends of the telescopic cylinder or the telescopic hydraulic cylinder can be connected to the inner door frame 3, so that the extension and retraction of the inner door frame 3 can be driven by the extension and retraction action of the telescopic cylinder.

[0065] Please see Figures 1 to 3As another specific embodiment of the aforementioned inner door frame 3 extending and retracting within the fixed frame 1, a multifunctional security door with variable storage space further includes a first drive assembly 5. The first drive assembly 5 includes a support fixing plate 55, a first drive motor 51, a first rotating screw 52, ​​a moving flange 53, and a support slide rail 54. The support fixing plate 55 is located on the side of the fixed frame 1 facing the door opening wall. The first drive motor 51 is located on the support fixing plate 55. One end of the first rotating screw 52 is connected to the power output end of the first drive motor 51, and the other end extends towards the inner door frame 3 along the first direction. The moving flange 53 is located within the inner door frame 1. The door frame 3 faces the wall of the door opening and is screwed to the first rotating screw 52; the support slide rail 54 is located below the first drive motor 51 and extends along the first direction; the support slide rail 54 includes a guide post 541 on the fixed frame 1 and a guide cylinder 542 on the inner door frame 3. When the inner door frame 3 extends or retracts towards or away from the fixed frame 1, the guide post 541 slides in the guide cylinder 542; wherein, when the first drive motor 51 drives the first rotating screw 52 to rotate, the moving flange 53 drives the inner door frame 3 to extend or retract along the axial direction of the first rotating screw 52, ​​and the guide post 541 slides and extends or retracts in the guide cylinder 542.

[0066] Specifically, the first drive motor 51 is a stepper motor.

[0067] It should be noted that the movable flange 53 is provided with a threaded hole that is screwed to the first rotating screw 52. The screwing of the first rotating screw 52 and the movable flange 53 can convert the rotation of the first drive motor 51 into the axial movement of the movable flange 53 along the first rotating screw 52, ​​thereby realizing the extension and retraction of the inner door frame 3 within the fixed frame 1.

[0068] By setting the support slide rail 54, the guide column 541 and the guide cylinder 542 can slide relative to each other when the inner door frame 3 extends or retracts. On the one hand, this guides the movement of the inner door frame 3, and on the other hand, it provides stable support between the inner door frame 3 and the fixed frame 1, thus avoiding the occurrence of a discontinuity space between the inner door frame 3 and the fixed frame 1.

[0069] By setting the support fixing plate 55, the first drive motor 51 and the support slide rail 54 can be stably supported and fixed.

[0070] It should be understood that, for the convenience of illustrating the structure of the first drive motor 51 and the first rotating lead screw 52, ​​this application includes the appendix. Figure 1 The support plate 55 is not specifically marked on the left side of the image; it is only mentioned in the appendix. Figure 1 The right side of the image shows the structure of part of the support plate 55. In actual application, each group of first drive components 5 corresponds to a support plate.

[0071] For example, multiple sets of first drive components 5 are provided, and the multiple sets of first drive components 5 are respectively placed on both sides of the fixed frame 1 facing the door opening wall, and are spaced up and down along the vertical direction; a support slide rail 54 is correspondingly provided below each set of first drive components 5.

[0072] By setting multiple sets of first drive components 5, the extension and retraction of the inner door frame 3 can be driven simultaneously to achieve simultaneous multi-point movement of the inner door frame 3, ensuring the smoothness and consistency of the movement of the upper and lower and left and right sides of the inner door frame 3.

[0073] Optionally, as a specific embodiment of the lifting and lowering of the lower shelf 8, sliding grooves can be respectively provided on two opposite sides of the fixed frame 1, and limiting bolts can be provided at the lifting position. A telescopic cylinder or electric telescopic rod can be provided below the lower shelf, and the telescopic end of the telescopic cylinder or electric telescopic rod can drive the lower shelf 8 to move up and down. That is, the height of the lower shelf 8 can be adjusted by sliding the lower shelf 8 up and down.

[0074] Furthermore, a switch for controlling the first drive motor 51 is provided on the inner side of the fixed frame 1 away from the wall of the door opening. The extension and retraction between the inner door frame 3 and the outer door frame 2 can be controlled by controlling the first drive motor 51.

[0075] Please see Figure 4 As another specific embodiment of the lower shelf 8 lifting and lowering, a multi-functional security door with variable storage space also includes a second drive assembly 6. The second drive assembly 6 includes a second drive motor 61, a second rotating screw 62, and a fixed flange 63. The second drive motor 61 is mounted on the lower shelf 8. One end of the second rotating screw 62 is connected to the power output end of the second drive motor 61, and the other end extends downward. The fixed flange 63 is fixed to the bottom wall below the lower shelf 8 and is screwed to the lower end of the second rotating screw 62. When the second drive motor 61 drives the second rotating screw 62 to rotate within the fixed flange 63, the second drive motor 61 moves up and down with the lower shelf 8 to form the degree of freedom for the lower shelf 8 to move up and down.

[0076] Since the fixed flange 63 is fixed to the ground, when the second drive motor 61 drives the second rotating screw 62 to rotate, the second rotating screw 62 will spirally rise along the axial direction of the fixed flange 63. By limiting the lower shelf 8 to the upper end of the second rotating screw 62 and making the second rotating screw 62 rotatably connected to the lower shelf 8, the lower shelf 8 moves upward with the upper end of the second rotating screw 62; conversely, the lower shelf 8 descends with the second rotating screw 62.

[0077] It should be understood that the connection between the second rotating screw 62 and the lower shelf 8 is existing technology. The second rotating screw 62 can drive the lower shelf 8 to rise and fall by fixing the fixed flange 63 to the ground.

[0078] Please see Figure 4 In some embodiments, the top surface of the lower shelf 8 is provided with an installation hole 81, and a support stool 82 is installed in the installation hole 81. Multiple sets of telescopic support columns 83 are also provided between the support stool 82 and the lower shelf 8. The telescopic support columns 83 are used to drive the support stool 82 to extend and retract up and down, and automatically lock after the support stool 82 extends and retracts into place.

[0079] It should be noted that the specific structure of the telescopic load-bearing column 83 can be that of an electric telescopic rod; alternatively, the telescopic load-bearing column 83 can also be a screw telescopic device driven by a motor; and the specific structure and working principle of the telescopic load-bearing column 83 are existing technologies and will not be described in detail here.

[0080] Please see Figure 1 In some embodiments, the fixed frame 1 is provided with multiple storage boxes 11 on the side away from the wall of the doorway, and the multiple storage boxes 11 are arranged vertically at intervals; each storage box 11 is provided with a power terminal, which is used to connect to a refrigeration device, a heating device or an oxygen supply device.

[0081] By arranging multiple storage boxes 11 at intervals, various daily necessities can be conveniently stored, improving space utilization. A power terminal is provided so that when a refrigeration device, heating device, or oxygen supply device is placed inside the storage box 11, it can be connected to the power terminal to achieve the functions of heating / insulation, cooling, or oxygen supply.

[0082] Furthermore, hooks can be installed on the fixed frame 1 or the inner door frame 3 for hanging clothes, hats, accessories, etc., to further improve space utilization.

[0083] It should be noted that the storage box 11 is designed using the space generated between the upper and lower distances of the support slide rail 54, the first drive motor 51 and the moving flange 53 on the inner side of the fixed frame 1.

[0084] Please see Figure 1 and Figure 2 For example, the lower end of the fixed frame 1 is also provided with an electric mosquito coil component 12, which is located in one of the storage boxes 11, and the corresponding storage box 11 has an opening 111 on the side facing the outside; the top of the inner door frame 3 is also provided with a mosquito killer lamp 32.

[0085] By installing the electric mosquito coil component 12 near the bottom of the room, external mosquitoes are blocked from entering the room and affecting the user's living experience. By installing the mosquito-killing lamp 32 near the top of the room, mosquitoes that accidentally enter are killed, achieving a double barrier against mosquitoes.

[0086] It should be noted that the electric mosquito coil component 12 is connected to the outdoor air through the aforementioned opening 111, and is used to repel and kill mosquitoes at the door. The mosquito-killing lamp 32 is located at the top and is used to kill mosquitoes near the door and mosquitoes that accidentally fly in from the outside.

[0087] Specifically, the electric mosquito repellent component 12 is installed inside the storage box 11, with the opening 111 connected to the outer door frame 2, so that mosquito repellent liquid can be used to repel or kill mosquitoes at the door.

[0088] Please see Figure 5 For example, the top of the fixed frame 1 is provided with a cross-flow ventilation air curtain machine 13; the bottom of the fixed frame 1 and the bottom of the outer door frame 2 are both provided with ventilation thresholds 4.

[0089] By setting up a cross-flow ventilation air curtain machine 13, the generated airflow can block external mosquitoes from flying into the room, while also providing indoor ventilation.

[0090] Specifically, please refer to Figure 5 , attached Figure 5 The arrows indicate the direction of airflow exchange between the inside and outside. When the security door 31 and the glass door 21 are closed, the internal airflow enters the storage space from the cross-flow ventilation curtain 13 at the top of the door frame and is discharged to the outside through the ventilation threshold 4 at the bottom. Furthermore, this ventilation method effectively prevents the entry of dense smoke from outside, thus ensuring the safety of the user.

[0091] Optionally, the cross-flow ventilation air curtain machine 13 can be installed above the push-pull rod of the electric door opener 91. When the outdoor glass door 21 is opened, it can generate an air curtain to block mosquitoes from entering. Whether the outdoor glass door 21 is open or closed, it can refresh the indoor air.

[0092] Optionally, the cross-flow ventilation air curtain machine 13 can be remotely switched on and off using electronic devices. It can automatically open when the door is opened and automatically close when the door is closed, or it can be switched on and off in other ways.

[0093] Optionally, the ventilation threshold 4 on the outer door frame 2 is equipped with a screen to prevent mosquitoes from entering.

[0094] Please see Figure 1 In some embodiments, the inner door frame 3 is provided with a light strip 33 and a reflector 34 on the side away from the door opening wall, and the light strip 33 and the reflector 34 are spaced apart along the first direction.

[0095] The brightness of the storage space can be increased by setting up the light strip 33, and the visibility of the storage space can be further improved by setting up the reflector 34.

[0096] Specifically, the light strip 33 is used to illuminate the keyhole and the environment when the door is opened. Optionally, the light strip 33 has a motion-sensor switch that can detect the human body, turning on the light strip 33 when someone enters and automatically turning it off when the person leaves. The mirror has reflective and convenient grooming functions.

[0097] Please see Figure 1 In some possible embodiments, a multifunctional security door with variable storage space also includes an electrically controlled door opening assembly 9. The electrically controlled door opening assembly 9 includes an electric door opener 91, an electric push-pull rod 92, and a face monitoring device 93. The electric door opener 91 is located on the top of the fixed frame 1. The active end of the electric push-pull rod 92 is connected to the power output end of the electric door opener 91, and the driven end is connected to the top of the glass door 21. The face monitoring device 93 is located on the side of the fixed frame 1 facing the outside and is electrically connected to the electric door opener 91. The face monitoring device 93 is equipped with a recognition component for recognizing faces. When the face monitoring device 93 recognizes a user's face through the recognition component, the electric door opener 91 controls the electric push-pull rod 92 to open the glass door 21.

[0098] The electric door opener 91 can open and close the door by controlling the push and pull action of the electric push-pull rod 92. The face monitoring device 93 can identify the facial features of a specific user to determine whether the user meets the access standards, and can automatically open and close the glass door 21 by controlling the electric door opener 91.

[0099] Optionally, the inner security door 31 can also be opened by an electric door opener 91 and an electric push-pull rod 92. In this case, the opening and closing of the inner security door 31 can be controlled by a face monitoring device 93.

[0100] Please see Figure 6 In some embodiments, a smart door lock is provided between the glass door 21 and the outer door frame 2, and an anti-pry door lock decorative panel 14 is provided on the side of the outer door frame 2 facing the glass door 21. The anti-pry door lock decorative panel 14 is provided with anti-pry elongated holes 141 extending vertically upwards and downwards.

[0101] By setting up an anti-pry decorative panel and providing an anti-pry elongated hole 141 on the anti-pry decorative panel, when criminals insert cards or similar products between the glass door 21 and the outer door frame 2, the cards or similar products will pass through the anti-pry elongated hole 141, preventing the lock-picking card from contacting the lock tongue.

[0102] Optionally, the power supply to the smart lock can be wired, allowing it to be powered by batteries or connected to a power source via wiring. During normal operation, it uses the power source, and during power outages, it uses batteries, effectively reducing the number of battery replacements. Specifically, the power supply line of the smart lock passes through the hinge and connects to the smart lock on the corresponding door leaf without affecting the use of the door leaf. The hinge has clearance holes for the power supply line to pass through and is designed to prevent wear and bending of the hinge.

[0103] In some possible embodiments, the glass door 21 is provided with a roller shutter door parallel to the outer side along the first direction.

[0104] By adding a roller shutter door to the outer layer of the glass door 21, a three-layer protection is formed.

[0105] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multifunctional security door with variable storage space, characterized in that, include: A fixed frame is fixed to the wall of the room's doorway; the direction of the room's interior and exterior is defined as the first direction, and the horizontal direction perpendicular to the first direction is defined as the second direction; the lower end of the fixed frame is provided with a lower shelf extending along the second direction, and the lower shelf has the freedom to extend and retract vertically. An outer door frame is located on the outside of the fixed frame, away from the room, and a glass door is provided inside the outer door frame; An inner door frame is located on the inner side of the fixed frame facing the room and is slidably connected to the fixed frame along the first direction; the lower end of the inner door frame is provided with an upper shelf extending along the second direction; a security door is provided inside the inner door frame; as well as The observation components include a peephole mounted on the security door and facing the glass door, and an LED screen fixed on the glass door, the LED screen being located on the side of the glass door facing the inside of the room; Specifically, after the lower shelf moves downward to a height lower than the upper shelf, the inner door frame slides and retracts into the fixed frame; after the inner door frame slides out of the fixed frame, the lower shelf moves upward to be flush with the top surface of the upper shelf.

2. The multifunctional security door with variable storage space as described in claim 1, characterized in that, The multi-functional security door with variable storage space further includes a first drive assembly, which comprises: A support and fixing plate is provided on the side of the fixing frame facing the doorway wall; The first drive motor is mounted on the support fixing plate; The first rotating lead screw has one end connected to the power output end of the first drive motor, and the other end extends along the first direction toward the inner door frame. A movable flange is located on the side of the inner door frame facing the door opening wall and is screwed to the first rotating screw; and A support slide rail is provided below the first drive motor and extends along the first direction; the support slide rail includes a guide post provided on the fixed frame and a guide cylinder provided on the inner door frame, and the guide post slides in the guide cylinder when the inner door frame extends or retracts towards or away from the fixed frame; When the first drive motor drives the first rotating screw to rotate, the moving flange causes the inner door frame to extend and retract along the axial direction of the first rotating screw, and the guide column slides and extends and retracts within the guide cylinder.

3. A multifunctional security door with variable storage space as described in claim 1, characterized in that, The multi-functional security door with variable storage space further includes a second drive assembly, which comprises: The second drive motor is located on the lower shelf. The second rotating lead screw has one end connected to the power output end of the second drive motor, and the other end extends downwards; and A fixed flange is fixed to the bottom wall below the lower shelf and screwed to the lower end of the second rotating screw. When the second drive motor drives the second rotating screw to rotate within the fixed flange, the second drive motor moves up and down with the lower shelf to create a degree of freedom for the lower shelf to move up and down.

4. A multifunctional security door with variable storage space as described in claim 1, characterized in that, The fixed frame is provided with multiple storage boxes on the side away from the wall of the doorway, and the multiple storage boxes are arranged vertically at intervals; each of the storage boxes is provided with a power terminal, which is used to connect to a refrigeration device, a heating device or an oxygen supply device.

5. A multifunctional security door with variable storage space as described in claim 4, characterized in that, The lower end of the fixed frame is also provided with an electric mosquito coil component, which is located in one of the storage boxes, and the corresponding storage box has an opening on the side facing the outside; the top of the inner door frame is also provided with a mosquito-killing lamp.

6. A multifunctional security door with variable storage space as described in claim 1, characterized in that, The top of the fixed frame is equipped with a cross-flow ventilation air curtain machine, and the bottom of the fixed frame and the bottom of the outer door frame are both equipped with ventilation thresholds.

7. A multifunctional security door with variable storage space as described in claim 1, characterized in that, The inner door frame is provided with a light strip and a reflector on the side away from the doorway wall, and the light strip and the reflector are spaced apart along the first direction.

8. A multifunctional security door with variable storage space as described in claim 1, characterized in that, The multi-functional security door with variable storage space further includes an electrically controlled door opening assembly, which includes: An electric door opener is located at the top of the fixed frame; An electric push-pull rod, with its active end connected to the power output end of the electric door opener and its driven end connected to the top of the glass door; and A face monitoring device is installed on the outdoor side of the fixed frame and is electrically connected to the electric door opener; the face monitoring device is equipped with a recognition component for recognizing faces; When the face monitoring device recognizes the user's face through the recognition component, the electric door opener controls the electric push-pull rod to open the glass door.

9. A multifunctional security door with variable storage space as described in claim 1, characterized in that, A smart door lock is provided between the glass door and the outer door frame, and an anti-pry door lock decorative panel is provided on the side of the outer door frame facing the glass door. The anti-pry door lock decorative panel is provided with anti-pry elongated holes extending vertically.

10. A multifunctional security door with variable storage space as described in claim 1, characterized in that, The glass door is provided with a roller shutter door parallel to the outer side along the first direction.